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I-MAB

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FY2022 Annual Report · I-MAB
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Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 20-F

(Mark One)

☐ REGISTRATION  STATEMENT  PURSUANT  TO  SECTION  12(b)  OR  12(g)  OF  THE  SECURITIES  EXCHANGE  ACT

OF 1934

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

OR

For the fiscal year ended December 31, 2022.

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

☐ SHELL  COMPANY  REPORT  PURSUANT  TO  SECTION  13  OR  15(d)  OF  THE  SECURITIES  EXCHANGE  ACT  OF

OR

1934

Date of event requiring this shell company report            

For the transition period from                     to                    

Commission file number: 001-39173

I-MAB

(Exact Name of Registrant as Specified in Its Charter)

N/A
(Translation of Registrant’s Name Into English)

Cayman Islands
(Jurisdiction of Incorporation or Organization)

55th Floor, New Bund Center, 555 West Haiyang Road, Pudong District
Shanghai, 200124
People’s Republic of China
(Address of Principal Executive Offices)

Richard Yeh, Interim Chief Financial Officer
55th Floor, New Bund Center, 555 West Haiyang Road, Pudong District
Shanghai, 200124
People’s Republic of China
Phone: +86 21-6057-8000
Email: Richard.Yeh@i-mabbiopharma.com
(Name, Telephone, Email and/or Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act:

Title of Each Class
American depositary shares, each ten
(10) American depositary shares representing
twenty-three (23) ordinary shares
Ordinary shares, par value US$0.0001 per share*

Trading Symbol
IMAB

Name of Each Exchange
On Which Registered
The Nasdaq Stock Market LLC
(The Nasdaq Global Market)
The Nasdaq Stock Market LLC
(The Nasdaq Global Market)

*

Not for trading, but only in connection with the listing on the Nasdaq Global Market of American depositary shares.

Securities registered or to be registered pursuant to Section 12(g) of the Act:

None

    
    
 
 
 
 
 
 
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Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

(Title of Class)

None
(Title of Class)

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report:

190,879,919 ordinary shares outstanding, par value of US$0.0001 per share, excluding 2,961,319 ordinary shares issued to our depositary bank for bulk issuance of ADSs
reserved for future issuances upon the exercising or vesting of awards granted under our share incentive plans, as of December 31, 2022.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.   ☐ Yes       ☒ No

If  this  report  is  an  annual  or  transition  report,  indicate  by  check  mark  if  the  registrant  is  not  required  to  file  reports  pursuant  to  Section  13  or  15(d)  of  the  Securities
Exchange Act of 1934.   ☐  Yes    ☒ No

Note – Checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 from their
obligations under those Sections.

Indicate  by  check  mark  whether  the  registrant:  (1)  has  filed  all  reports  required  to  be  filed  by  Section  13  or  15(d)  of  the  Securities  Exchange  Act  of  1934  during  the
preceding  12  months  (or  for  such  shorter  period  that  the  registrant  was  required  to  file  such  reports),  and  (2)  has  been  subject  to  such  filing  requirements  for  the  past
90 days.   ☒ Yes     ☐  No

Indicate  by  check  mark  whether  the  registrant  has  submitted  electronically  every  Interactive  Data  File  required  to  be  submitted  and  posted  pursuant  to  Rule  405  of
Regulation  S-T  (§232.405  of  this  chapter)  during  the  preceding  12  months  (or  for  such  shorter  period  that  the  registrant  was  required  to  submit  such  files).      ☒ Yes
    ☐  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of
“large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

☒

Accelerated filer

☐ Non-accelerated filer

Emerging growth company

☐

☐

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the
extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act. ☐

† The  term  “new  or  revised  financial  accounting  standard”  refers  to  any  update  issued  by  the  Financial  Accounting  Standards  Board  to  its  Accounting  Standards
Codification after April 5, 2012.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial
reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accountant firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the
correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the
registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this fling:

U.S. GAAP ☒

     International Financial Reporting Standards as issued
by the International Accounting Standards Board

☐

Other ☐

If  “Other”  has  been  checked  in  response  to  the  previous  question,  indicate  by  check  mark  which  financial  statement  item  the  registrant  has  elected  to  follow.
  ☐  Item 17    ☐  Item 18

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).   ☐  Yes ☒   No

(APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS)

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of

1934 subsequent to the distribution of securities under a plan confirmed by a court.   ☐  Yes    ☐  No

    
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TABLE OF CONTENTS

INTRODUCTION
FORWARD-LOOKING STATEMENTS
PART I

ITEM 1. IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS
ITEM 2. OFFER STATISTICS AND EXPECTED TIMETABLE
ITEM 3. KEY INFORMATION
ITEM 4. INFORMATION ON THE COMPANY
ITEM 4A. UNRESOLVED STAFF COMMENTS
ITEM 5. OPERATING AND FINANCIAL REVIEW AND PROSPECTS
ITEM 6. DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES
ITEM 7. MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS
ITEM 8. FINANCIAL INFORMATION
ITEM 9. THE OFFER AND LISTING
ITEM 10. ADDITIONAL INFORMATION
ITEM 11. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
ITEM 12. DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

PART II

ITEM 13. DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES
ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
ITEM 15. CONTROLS AND PROCEDURES
ITEM 16A. AUDIT COMMITTEE FINANCIAL EXPERT
ITEM 16B. CODE OF ETHICS
ITEM 16C. PRINCIPAL ACCOUNTANT FEES AND SERVICES
ITEM 16D. EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES
ITEM 16E. PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS
ITEM 16F. CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT
ITEM 16G. CORPORATE GOVERNANCE
ITEM 16H. MINE SAFETY DISCLOSURE
ITEM 16I. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS
ITEM 16J. INSIDER TRADING POLICIES

PART III

ITEM 17. FINANCIAL STATEMENTS
ITEM 18. FINANCIAL STATEMENTS
ITEM 19. EXHIBITS

SIGNATURES

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INTRODUCTION

Unless otherwise indicated and except where the context otherwise requires, references in this annual report on Form 20-F to:

● “ADRs” refer to the American depositary receipts that evidence our ADSs;

● “ADSs” refer to our American depositary shares, each ten (10) ADSs represent twenty-three (23) ordinary shares;

● “China” or “the PRC” refers to the People’s Republic of China, excluding, for the purposes of this annual report only, Hong

Kong, Macau and Taiwan, and “Greater China” does not exclude Hong Kong, Macau and Taiwan;

● “China  Portfolio”  refers  to  our  investigational  drugs  of  which  we  in-license  Greater  China  rights  from  reputable  global
biopharmaceutical companies and rely on our own research and development capabilities to advance into pivotal clinical trials
and commercialize in Greater China with an aim for near-term product launch;

● “Global Portfolio” refers to our own proprietary novel or differentiated drug candidates that we are advancing towards clinical

validation in the United States;

● “I-Mab,” “we,” “us,” “our company” and “our” refer to I-Mab, a Cayman Islands exempted company, and its subsidiaries;

● “RMB” refers to the legal currency of China;

● “shares” or “ordinary shares” refer to our ordinary shares, par value US$0.0001 per share; and

● “US$,” “U.S. dollars,” “$,” and “dollars” refer to the legal currency of the United States.

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FORWARD-LOOKING STATEMENTS

This  annual  report  on  Form  20-F  contains  forward-looking  statements  that  relate  to  our  current  expectations  and  views  of  future
events.  These  statements  involve  known  and  unknown  risks,  uncertainties  and  other  factors  that  may  cause  our  actual  results,
performance  or  achievements  to  be  materially  different  from  those  expressed  or  implied  by  the  forward-looking  statements.  These
statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigations Reform Act of 1995.

You can identify some of these forward-looking statements by words or phrases such as “may,” “will,” “expect,” “anticipate,” “aim,”
“estimate,”  “intend,”  “plan,”  “believe,”  “is/are  likely  to,”  “potential,”  “continue”  or  other  similar  expressions.  We  have  based  these
forward-looking  statements  largely  on  our  current  expectations  and  projections  about  future  events  that  we  believe  may  affect  our
financial  condition,  results  of  operations,  business  strategy  and  financial  needs.  These  forward-looking  statements  include  statements
relating to:

● the timing of initiation and completion, and the progress of our drug discovery and research programs;

● the timing and likelihood of regulatory filings and approvals;

● our ability to advance our drug candidates into drugs, and the successful completion of clinical trials;

● the approval, pricing and reimbursement of our drug candidates;

● the commercialization of our drug candidates;

● the market opportunities and competitive landscape of our drug candidates;

● the payment, receipt and timing of any milestone payments in relation to the licensing agreements;

● estimates of our costs, expenses, future revenues, capital expenditures and our needs for additional financing;

● our ability to attract and retain senior management and key employees;

● our future business development, financial condition and results of operations;

● future developments, trends, conditions and competitive landscape in the industry and markets in which we operate;

● our strategies, plans, objectives and goals and our ability to successfully implement these strategies, plans, objectives and goals;

● our ability to consummate the listings of our securities on other stock exchanges;

● our ability to continue to maintain our market position in China’s biopharmaceutical and biotechnology industries;

● our ability to identify and integrate suitable acquisition targets; and

● changes to regulatory and operating conditions in our industry and markets.

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You should read this annual report and the documents that we refer to in this annual report and have filed as exhibits to this annual
report  completely  and  with  the  understanding  that  our  actual  future  results  may  be  materially  different  from  what  we  expect.  Other
sections  of  this  annual  report  discuss  factors  which  could  adversely  impact  our  business  and  financial  performance.  Moreover,  we
operate in an evolving environment. New risk factors emerge from time to time and it is not possible for our management to predict all
risk factors, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may
cause actual results to differ materially from those contained in any forward-looking statements. We qualify all of our forward-looking
statements by these cautionary statements.

You should not rely upon forward-looking statements as predictions of future events. The forward-looking statements made in this
annual  report  relate  only  to  events  or  information  as  of  the  date  on  which  the  statements  are  made  in  this  annual  report.  Except  as
required  by  law,  we  undertake  no  obligation  to  update  or  revise  publicly  any  forward-looking  statements,  whether  as  a  result  of  new
information,  future  events  or  otherwise,  after  the  date  on  which  the  statements  are  made  or  to  reflect  the  occurrence  of  unanticipated
events.

Our  reporting  currency  is  Renminbi,  or  RMB.  Unless  otherwise  noted,  all  translations  from  RMB  to  U.S.  dollars  and  from  U.S.
dollars to RMB in this annual report are made at a rate of RMB6.8972 to US$1.00, the exchange rate in effect as of December 30, 2022
as set forth in the H.10 statistical release of The Board of Governors of the Federal Reserve System. We make no representation that any
RMB or U.S. dollar amounts could have been, or could be, converted into U.S. dollars or RMB, as the case may be, at any particular rate,
or at all.

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PART I

ITEM 1.

IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS

Not applicable.

ITEM 2.

OFFER STATISTICS AND EXPECTED TIMETABLE

Not applicable.

ITEM 3.

KEY INFORMATION

Our Holding Company Structure

I-Mab is not an operating company but a Cayman Islands holding company with operations primarily conducted by its subsidiaries
based in China and the United States. We and our subsidiaries face various legal and operational risks and uncertainties related to doing
business in China. A significant part of our business operations in China are conducted through our PRC subsidiaries, and we and our
subsidiaries  are  subject  to  complex  and  evolving  PRC  laws  and  regulations.  For  example,  the  PRC  government  has  recently  issued
statements  and  regulatory  actions  relating  to  areas  such  as  the  regulatory  approvals  on  offshore  offerings  and  listings  by,  and  foreign
investment in, China-based users, anti-monopoly actions and oversight on cybersecurity and data privacy. In addition, we also face risks
arising  from  the  prospective  uncertainties  associated  with  the  ability  of  the  Public  Company  Accounting  Oversight  Board  (United
States),  or  the  PCAOB,  to  completely  inspect  registered  public  accounting  firms  headquartered  in  mainland  China  (including  our
independent auditor). These risks and uncertainties may impact our ability to conduct certain businesses, accept foreign investments, or
list or conduct offerings on a United States or other foreign exchange, and could result in a material adverse change in our operations and
the value of our ADSs, significantly limit or completely hinder our ability to offer or continue to offer securities to investors, or cause
such securities to significantly decline in value. For a detailed description of risks related to doing business in China, see “Item 3. Key
Information—D. Risk Factors—Risks Related to Doing Business in China.”

The  PRC  government  has  significant  authority  in  regulating  our  operations  and  may  influence  our  operations.  It  may  exert  more
oversight and control over offerings conducted overseas by, and foreign investment in, China-based issuers, which could significantly
limit or completely hinder our ability to offer or continue to offer securities to investors. Implementation of industry-wide regulations,
including data security or anti-monopoly related regulations, in this nature may cause the value of such securities to significantly decline.
For more details, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The PRC government’s
significant oversight and discretion over our business operations could result in a material adverse change in our operations and the value
of our ADSs.”

Risks and uncertainties arising from the legal system in China, including risks and uncertainties regarding the enforcement of laws
and  quickly  evolving  rules  and  regulations  in  China,  could  result  in  a  material  adverse  change  in  our  operations  and  the  value  of  our
ADSs. For more details, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—Uncertainties with
respect to the PRC legal system could materially and adversely affect us.”

Permissions Required from the PRC Authorities

We conduct our business in China primarily through our subsidiaries in China. Our operations in China are governed by PRC laws
and regulations. As of the date of this annual report, our PRC subsidiaries have obtained the requisite licenses and permits from the PRC
government  authorities  that  are  material  for  their  business  operations  in  China.  Given  the  uncertainties  of  interpretation  and
implementation of relevant laws and regulations and the enforcement practice by relevant government authorities, we may be required to
obtain additional licenses, permits, filings or approvals for the functions and services of our platform in the future, or renew our current
licenses, permits, filings or approvals. For more detailed information, see “Item 3. Key Information—D. Risk Factors—Risks Related to
Doing Business in China—The pharmaceutical industry in China is highly regulated and such regulations are subject to change which
may affect approval and commercialization of our drugs.”

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Furthermore, the PRC government has recently promulgated certain regulations and rules to exert more oversight and control over
offerings that are conducted overseas and/or foreign investment in China-based issuers. In connection with the nature and scale of data
processed or handled by us in our business operations and our historical issuance of securities to foreign investors, under the current PRC
laws, regulations and regulatory rules, as of the date of this annual report, we and our PRC subsidiaries, (i) are not required to go through
the filing procedures with regard to the listing and historical issuance of securities by our company to foreign investors with the China
Securities  Regulatory  Commission,  or  the  CSRC,  under  the  Trial  Administrative  Measures  of  the  Overseas  Securities  Offering  and
Listing  by  Domestic  Companies  (the  “Overseas  Listing  Trial  Measures”),  (ii)  are  not  required  by  the  Cyberspace  Administration  of
China, or the CAC, or any of its local counterparts, to go through the cybersecurity review under the Cybersecurity Review Measures,
and (iii) have not received or were denied such permissions by the CSRC or the CAC. Nevertheless, in the event that we conduct any
securities  offerings  in  the  future  that  will  be  captured  by  the  Overseas  Listing  Trial  Measures,  we  will  have  to  go  through  the  filing
procedures  with  the  CSRC  within  three  business  days  following  the  closing  of  the  securities  issuance  or  offering.  For  more  detailed
information, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The approval of and filing
with relevant PRC government authorities may be required in connection with our offshore offerings under PRC law, and, if required, we
cannot predict whether or for how long we will be able to obtain such approval or complete such filing.”

If (i) we do not receive or maintain any requisite permissions or approvals, (ii) we inadvertently concluded that certain permissions
or approvals have been acquired or are not required, or (iii) applicable laws, regulations or interpretations thereof change and we become
subject to the requirement of additional permissions or approvals in the future, we cannot assure you that we will be able to obtain such
permissions or approvals in a timely manner, or at all, and such approvals may be rescinded even if obtained. Any such circumstance
could  subject  us  to  penalties,  including  fines,  suspension  of  business  and  revocation  of  required  licenses,  which  could  materially  and
adversely affect our business, financial condition and results of operations.

The Holding Foreign Companies Accountable Act

Pursuant to the Holding Foreign Companies Accountable Act, or the HFCAA, if the SEC determines that we have filed audit reports
issued by a registered public accounting firm that has not been subject to inspections by the PCAOB for two consecutive years, the SEC
will prohibit our shares or the ADSs from being traded on a national securities exchange or in the over-the-counter trading market in the
United States. On December 16, 2021, the PCAOB issued a report to notify the SEC of its determination that the PCAOB was unable to
inspect  or  investigate  completely  registered  public  accounting  firms  headquartered  in  mainland  China  and  Hong  Kong,  including  our
auditor. In May 2022, the SEC conclusively listed us as a Commission-Identified Issuer under the HFCAA following the filing of this
annual  report  on  Form  20-F  for  the  fiscal  year  ended  December  31,  2021.  On  December  15,  2022,  the  PCAOB  issued  a  report  that
vacated  its  December  16,  2021  determination  and  removed  mainland  China  and  Hong  Kong  from  the  list  of  jurisdictions  where  it  is
unable  to  inspect  or  investigate  completely  registered  public  accounting  firms.  For  this  reason,  we  do  not  expect  to  be  identified  as  a
Commission-Identified Issuer under the HFCAA after we file this annual report on Form 20-F. Each year, the PCAOB will determine
whether  it  can  inspect  and  investigate  completely  audit  firms  in  mainland  China  and  Hong  Kong,  among  other  jurisdictions.  If  the
PCAOB  determines  in  the  future  that  it  no  longer  has  full  access  to  inspect  and  investigate  completely  accounting  firms  in  mainland
China and Hong Kong and we continue to use an accounting firm headquartered in one of these jurisdictions to issue an audit report on
our financial statements filed with the Securities and Exchange Commission, we would be identified as a Commission-Identified Issuer
following  the  filing  of  the  annual  report  on  Form  20-F  for  the  relevant  fiscal  year.  There  can  be  no  assurance  that  we  would  not  be
identified as a Commission-Identified Issuer for any future fiscal year, and if we were so identified for two consecutive years, we would
become  subject  to  the  prohibition  on  trading  under  the  HFCAA.  For  more  details,  see  “Item  3.  Key  Information—D.  Risk  Factors—
Risks  Related  to  Doing  Business  in  China—The  PCAOB  had  historically  been  unable  to  inspect  our  auditor  in  relation  to  their  audit
work  performed  for  our  financial  statements  and  the  inability  of  the  PCAOB  to  conduct  inspections  of  our  auditor  in  the  past  has
deprived our investors with the benefits of such inspections” and “Item 3. Key Information—D. Risk Factors—Risks Related to Doing
Business in China—Our ADSs may be prohibited from trading in the United States under the HFCAA in the future if the PCAOB is
unable to inspect or investigate completely auditors located in China. The delisting of the ADSs, or the threat of their being delisted, may
materially and adversely affect the value of your investment.”

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Cash and Asset Flows through Our Organization

I-Mab is a holding company with no operations of its own. We conduct our business primarily through our subsidiaries in China and
the United States. As a result, although other means are available for us to obtain financing at the holding company level, our ability to
pay dividends to the shareholders and investors of the ADSs and to service any debt it may incur may depend upon dividends paid by our
subsidiaries. If any of our subsidiaries incurs debt on its own behalf in the future, the instruments governing such debt may restrict its
ability to pay dividends to I-Mab. In addition, our PRC subsidiaries are permitted to pay dividends to I-Mab only out of their retained
earnings, if any, as determined in accordance with PRC accounting standards and regulations. Further, our PRC subsidiaries are required
to  make  appropriations  to  certain  statutory  reserve  funds  or  may  make  appropriations  to  certain  discretionary  funds,  which  are  not
distributable as cash dividends except in the event of a solvent liquidation of the companies. For more details, see “Item 5. Operating and
Financial Review and Prospects—B. Liquidity and Capital Resources—Holding Company Structure.”

Under  PRC  laws  and  regulations,  our  PRC  subsidiaries  are  subject  to  certain  restrictions  with  respect  to  paying  dividends  or
otherwise transferring any of their net assets to us. Remittance of dividends by a wholly foreign-owned enterprise out of China is also
subject to examination by the banks designated by SAFE. The amounts restricted include the paid-up capital and the statutory reserve
funds  of  our  PRC  subsidiaries,  totaling  RMB455.0  million,  RMB486.9  million  and  RMB490.0  million  (US$71.0  million)  as  of
December 31, 2020, 2021 and 2022, respectively. Furthermore, cash transfers from our PRC subsidiaries to entities outside of China are
subject to PRC government control of currency conversion. Shortages in the availability of foreign currency may temporarily delay the
ability of our PRC subsidiaries to remit sufficient foreign currency to pay dividends or other payments to us, or otherwise satisfy their
foreign currency denominated obligations. For the years ended December 31, 2020, 2021 and 2022, no dividends or distributions were
made to I-Mab by our subsidiaries. For risks relating to the fund flows of our operations in China, see “Item 3. Key Information—D.
Risk Factors—Risks Related to Doing Business in China—We may rely on dividends and other distributions on equity paid by our PRC
subsidiaries to fund any cash and financing requirements we may have, and any limitation on the ability of our PRC subsidiaries to make
payments to us could have a material and adverse effect on our ability to conduct our business.”

Under  PRC  law,  I-Mab  may  provide  funding  to  our  PRC  subsidiaries  only  through  capital  contributions  or  loans,  subject  to
satisfaction of applicable government registration and approval requirements. In the years ended December 31, 2020, 2021 and 2022, I-
Mab extended loans with outstanding principal amount of RMB776.2 million, RMB1,079.6 million and RMB898.6 million (US$130.3
million), respectively, to our intermediate holding companies and subsidiaries.

I-Mab  has  not  declared  or  paid  any  cash  dividends,  nor  does  it  have  any  present  plan  to  pay  any  cash  dividends  on  our  ordinary
shares in the foreseeable future. We currently intend to retain most, if not all, of our available funds and any future earnings to operate
and expand our business. See “Item 8. Financial Information—A. Consolidated Statements and Other Financial Information—Dividend
Policy.”  For  PRC  and  United  States  federal  income  tax  considerations  of  an  investment  in  our  ADSs,  see  “Item  10.  Additional
Information—E. Taxation.”

Selected Financial Data

As of December 31, 2022, we had cash, cash equivalents, restricted cash, and short-term investments of RMB3.5 billion (US$514.2
million), compared with RMB4.3 billion as of December 31, 2021. Our cash balance provides us with adequate funding to support our
key business for at least the next three years based on our current estimation, taking our current cash position together with the expected
upcoming milestone payments from the previous out-licensing deals and collaborations.

The following selected consolidated statements of comprehensive income (loss) data for the years ended December 31, 2020, 2021
and 2022, selected consolidated balance sheet data as of December 31, 2021 and 2022 and selected consolidated statements of cash flow
data  for  the  years  ended  December  31,  2020,  2021  and  2022  have  been  derived  from  our  audited  consolidated  financial  statements
included elsewhere in this annual report. The selected consolidated statements of comprehensive loss data for the years ended December
31,  2018  and  2019,  selected  consolidated  balance  sheet  data  as  of  December  31,  2018,  2019  and  2020,  and  selected  consolidated
statements of cash flow data for the years ended December 31, 2018 and 2019 have been derived from our audited consolidated financial
statements that are not included in this annual report. Our consolidated financial statements are prepared and presented in accordance
with accounting principles generally accepted in the United States of America, or U.S. GAAP.

6

Table of Contents

Our  historical  results  do  not  necessarily  indicate  results  expected  for  any  future  periods.  The  selected  consolidated  financial  data
should be read in conjunction with, and are qualified in their entirety by reference to, our audited consolidated financial statements and
related notes and “Item 5. Operating and Financial Review and Prospects” below.

For the Year Ended December 31,

2018

2019
     RMB      RMB

2020
RMB

2021
RMB

RMB
(in thousands, except for share and per share data)

2022

US$

Selected  Consolidated  Statements  of  Comprehensive  Income  (Loss)

Data:
Revenues

Licensing and collaboration revenue(1)
Supply of investigational products

Total revenues

Cost of revenues

Expenses

Research and development expenses (2)
Administrative expenses (2)
Income (loss) from operations

Interest income
Interest expense
Other income (expenses), net
Equity in loss of affiliates (2)
Fair value change of warrants

Income (loss) before income tax expense

Income tax benefit (expense)

Net income (loss) attributable to I-Mab

Deemed dividend to Series C-1 preferred shareholders at extinguishment

of Series C-1 Preferred Shares

Deemed  dividend  to  Series  B-1,  B-2  and  C  preferred  shareholders  at

modification of Series B-1, B-2 and C Preferred Shares
Net income (loss) attributable to ordinary shareholders
Other comprehensive income (loss)

Foreign currency translation adjustments, net of nil tax
Total comprehensive income (loss) attributable to I-Mab
Net income (loss) attributable to ordinary shareholders
Weighted-average  number  of  ordinary  shares  used  in  calculating  net

income (loss) per share
Basic
Diluted

Net income (loss) per share attributable to ordinary shareholders

Basic
Diluted

Net income (loss) per ADS attributable to ordinary shareholders

Basic
Diluted

Notes:

 53,781  
—  
 53,781  
—  

 (426,028) 
 (66,391) 
 (438,638) 
 4,597  
 (11,695) 
 (16,780) 
—  
 61,405  
 (401,111) 
 (1,722) 
 (402,833) 

 30,000  
 —  
 30,000  
 —  

 1,542,668  
 —  
 1,542,668  
 —  

 (840,415) 
 (654,553) 
 (1,464,968) 
 30,570  
 (2,991) 
 (20,205) 
 —  
 5,644  
 (1,451,950) 
 —  
 (1,451,950) 

 (984,689) 
 (402,409) 
 155,570  
 24,228  
 (957) 
 412,892  
 (108,587) 
 —  
 483,146  
 (12,231) 
 470,915  

 40,115  
 47,911  
 88,026  
 (46,432) 

 (1,212,958) 
 (899,943) 
 (2,071,307) 
 21,333  
 —  
 83,162  
 (367,883) 
 —  
 (2,334,695) 
 3,154  
 (2,331,541) 

 (249,665) 
 28,102  
 (221,563) 
 (27,237) 

 (904,901) 
 (815,766) 
 (1,969,467) 
 26,908  
 (9) 
 (126,587) 
 (437,465) 
 —  
 (2,506,620) 
 (697) 
 (2,507,317) 

 (36,198)
 4,074
 (32,124)
 (3,949)

 (131,198)
 (118,275)
 (285,546)
 3,901
 (1)
 (18,353)
 (63,426)
 —
 (363,425)
 (101)
 (363,526)

—  

 (5,283) 

 —  

 —  

 —  

 —

—  
 (402,833) 

 (27,768) 
 (1,485,001) 

 —  
 470,915  

 —  
 (2,331,541) 

 —  
 (2,507,317) 

 53,689  
 (349,144) 
 (402,833) 

 10,747  
 (1,441,203) 
 (1,485,001) 

 (120,920) 
 349,995  
 470,915  

 (135,717) 
 (2,467,258) 
 (2,331,541) 

 400,304  
 (2,107,013) 
 (2,507,317) 

 —
 (363,526)

 58,039
 (305,487)
 (363,526)

 6,529,092  
 6,529,092  

 7,381,230  
 7,381,230  

 134,158,824  
 157,231,652  

 174,707,055  
 174,707,055  

 189,787,292  
 189,787,292  

 189,787,292
 189,787,292

 (61.70) 
 (61.70) 

 (141.91) 
 (141.91) 

 (201.19) 
 (201.19) 

 (462.74) 
 (462.74) 

 3.51  
 3.00  

 8.07  
 6.90  

 (13.35) 
 (13.35) 

 (30.71) 
 (30.71) 

 (13.21) 
 (13.21) 

 (30.38) 
 (30.38) 

 (1.92)
 (1.92)

 (4.41)
 (4.41)

(1) The licensing and collaboration revenue of RMB-249.7 million (US$-36.2 million) was primarily due to a non-cash adjustment of
US$-48.0 million (equivalent to RMB-314.2 million) recorded in the second half of 2022 following the amendment to the original
license  and  the  overall  collaboration  arrangement  with  AbbVie  Ireland  Unlimited  Company  (“AbbVie”)  in  August  2022.  This
overall  amendment  led  to  a  lowered  probability  of  achieving  a  key  milestone  that  was  included  in  the  consideration  of  revenue
recognition in prior years. For more details, see “Item 5. Operating and Financial Review and Prospects.”

(2) Share-based compensation expenses were allocated as follows:

7

    
    
    
    
 
   
   
   
   
   
  
 
   
   
   
   
   
  
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
   
   
   
 
 
 
 
 
   
   
   
 
 
 
 
 
   
   
   
 
 
 
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Research and development expenses
Administrative expenses
Equity in loss of affiliates
Total

For the Year Ended December 31,

2018
RMB

2019
RMB

 1,056  
 2,464  
 —  
 3,520  

 470  
 514,733  
 —  
 515,203  

2020
RMB

2021
RMB

(in thousands)

 284,431  
 209,033  
 32,707  
 526,171  

 201,926  
 406,683  
 13,267  
 621,876  

2022

RMB

USS

 117,876  
 239,272  
 13,852  
 371,000  

 17,090
 34,691
 2,008
 53,789

The following table presents our selected consolidated statements of balance sheet data as of the dates indicated:

Selected  Consolidated  Statements  of  Balance

2018
RMB

2019
RMB

As of December 31,
2020
RMB

2021
RMB

(in thousands)

2022

RMB

US$

Sheet Data:
Current assets:

Cash and cash equivalents
Restricted cash
Accounts receivable
Contract assets
Short-term investments
Inventories
Prepayments and other receivables
Other financial assets

Total current assets

Property, equipment and software
Operating lease right-of-use assets
Intangible assets
Goodwill
Investment  accounted  for  using 

method

Other non-current assets

Total assets
Total liabilities
Total mezzanine equity
Shareholders’ deficit

 1,588,278  
 92,653  
 —  
 11,000  
 —  
 —  
 88,972  
 255,958  
 2,036,861  
 27,659  
 —  
 148,844  
 162,574  

 1,137,473  
 55,810  
 —  
 —  
 32,000  
 —  
 136,036  
 —  
 1,361,319  
 30,069  
 16,435  
 148,844  
 162,574  

 4,758,778  
 —  
 130,498  
 227,391  
 31,530  
 —  
 195,467  
 —  
 5,343,664  
 25,272  
 14,997  
 120,444  
 162,574  

 3,523,632  
 —  
 33,081  
 253,780  
 753,164  
 27,237  
 190,824  
 —  
 4,781,718  
 45,716  
 112,781  
 119,666  
 162,574  

 3,214,005  
 96,764  
 —  
 —  
 235,429  
 —  
 80,278  
 —  
 3,626,476  
 60,841  
 63,125  
 118,888  
 162,574  

 —  
 —  
 2,375,938  
 415,684  
 2,915,358  

 —  
 18,331  
 1,737,572  
 668,090  
 3,104,177  

 664,832  
 2,010  
 6,333,793  
 706,648  
 —  

 352,106  
 26,634  
 5,601,195  
 1,041,635  
 —  

 30,850  
 10,911  
 4,073,665  
 1,163,763  
 —  

 465,987
 14,029
 —
 —
 34,134
 —
 11,639
 —
 525,789
 8,821
 9,152
 17,237
 23,571

 4,473
 1,582
 590,625
 168,729
 —

the  equity

Ordinary 

par 

shares 

(US$0.0001 

value,
800,000,000 shares authorized as of December
31,  2021  and  2022;  183,826,753 
  and
190,879,919  shares  issued  and  outstanding  as
of December 31, 2021 and 2022, respectively)

Treasury stock
Additional paid-in capital
Accumulated other comprehensive income (loss)  
Accumulated deficit

Total shareholders’ equity/(deficit)
Total 

liabilities,  mezzanine 

shareholders’ equity/(deficit)

equity 

and

 6  
 (1) 
 —  
 59,380  
 (1,014,489) 
 (955,104) 

 6  
 —  
 389,379  
 70,127  
 (2,494,207) 
 (2,034,695) 

 114  
 —  
 7,701,116  
 (50,793) 
 (2,023,292) 
 5,627,145  

 126  
 —  
 9,100,777  
 (186,510) 
 (4,354,833) 
 4,559,560  

 132  
 (21,249) 
 9,579,375  
 213,794  
 (6,862,150) 
 2,909,902  

 19
 (3,081)
 1,388,879
 30,997
 (994,918)
 421,896

 2,375,938  

 1,737,572  

 6,333,793  

 5,601,195  

 4,073,665  

 590,625

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The following table presents our selected consolidated statements of cash flow data for the years indicated:

Selected  Consolidated  Statements  of  Cash  Flow

Data:

Net cash (used in) generated from operating activities  
Net cash generated from (used in) investing activities  
Net cash generated from financing activities
Effect  of  exchange  rate  changes  on  cash  and  cash

2018
RMB

2019
RMB

2020
RMB

2021
RMB

2022

RMB

USS

For the Year Ended December 31,

(in thousands)

 (280,705) 
 9,500  
 1,479,669  

 (867,982) 
 212,462  
 152,709  

 433,558  
 (201,901) 
 3,440,481  

 (973,093) 
 (727,206) 
 593,924  

 (1,102,805) 
 458,382  
 42,357  

 (159,892)
 66,459
 6,141

equivalents and restricted cash

 59,754  

 15,163  

 (106,643) 

 (128,771) 

 389,203  

 56,429

Net  increase  (decrease)  in  cash,  cash  equivalents  and

restricted cash

 1,268,218  

 (487,648) 

 3,565,495  

 (1,235,146) 

 (212,863) 

 (30,863)

Cash,  cash  equivalents  and  restricted  cash,  beginning

of the year

 412,713  

 1,680,931  

 1,193,283  

 4,758,778  

 3,523,632  

 510,879

Cash, cash equivalents and restricted cash, end of the

 1,680,931  

 1,193,283  

 4,758,778  

 3,523,632  

 3,310,769  

 480,016

year

A. Reserved

B. Capitalization and Indebtedness

Not applicable.

C. Reasons for the Offer and Use of Proceeds

Not applicable.

D.   Risk Factors

Summary of Risk Factors

An investment in our ADSs or ordinary shares involves significant risks. Below is a summary of material risks we face, organized

under relevant headings. These risks are discussed more fully in “Item 3. Key Information—D. Risk Factors.”

Risks Related to Our Financial Position and Need for Additional Capital

● We  have  a  limited  operating  history,  which  may  make  it  difficult  to  evaluate  our  current  business  and  predict  our  future

performance.

● We have incurred net losses in the past and we may not be able to maintain profitability in the future.

● We  recorded  net  cash  outflow  from  operating  activities  in  the  past.  We  may  need  to  obtain  additional  financing  to  fund  our
operations. If we are unable to obtain such financing, we may be unable to complete the development and commercialization of
our major drug candidates.

Risks Related to Clinical Development of Our Drug Candidates

● Clinical development involves a lengthy and expensive process with an uncertain outcome, and results of earlier studies and

trials may not be predictive of future trial results.

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● We depend substantially on the success of our drug candidates, all of which are in pre-clinical or clinical development, and our
ability to identify additional drug candidates. If we are unable to successfully identify new drug candidates, complete clinical
development, obtain regulatory approval and commercialize our drug candidates, or experience significant delays in doing so,
our business will be materially banned.

● We may not be able to identify, discover or in-license new drug candidates, and may allocate our limited resources to pursue a
particular drug candidate or indication and fail to capitalize on drug candidates or indications that may later prove to be more
profitable, or for which there is a greater likelihood of success.

Risks Related to Obtaining Regulatory Approval for Our Drug Candidates

● All material aspects of the research, development and commercialization of pharmaceutical products are heavily regulated.

● The regulatory approval processes of the NMPA, the FDA and other comparable regulatory authorities are time-consuming and
may evolve over time, and if we are ultimately unable to obtain regulatory approval for our drug candidates, our business will
be substantially harmed.

● The failure to obtain patent term extension and data exclusivity for approved pharmaceutical products could increase the risk of

generic competition with our products.

Risks Related to Commercialization of Our Drug Candidates

● Our drug candidates may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others

in the medical community necessary for commercial success.

● We face intense competition and rapid technological change and the possibility that our competitors may develop therapies that
are similar, more advanced, or more effective than ours, which may adversely affect our financial condition and our ability to
successfully commercialize our drug candidates.

● The  manufacture  of  biopharmaceutical  products  is  a  complex  process  which  requires  significant  expertise  and  capital
investment,  and  if  we  encounter  problems  in  sourcing  manufacturing  capabilities  or  manufacturing  our  future  products,  our
business could suffer.

Risks Related to Our Reliance on Third Parties

● As we rely on third parties to conduct our pre-clinical studies and clinical trials, if we lose our relationships with these third
parties or if they do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain
regulatory approval for or commercialize our drug candidates and our business could be substantially harmed.

● We expect to rely on third parties to manufacture at least a portion of our drug candidate supplies, and we intend to rely on third
parties for at least a portion of the manufacturing process of our drug candidates, if approved. Our business could be harmed if
those third parties fail to provide us with sufficient quantities of product or fail to do so at acceptable quality levels or prices.

Risks Related to Our Intellectual Property

● If we are unable to obtain and maintain patent and other intellectual property protection for our drug candidates, or if the scope
of such intellectual property rights obtained is not sufficiently broad, third parties could develop and commercialize products
and technologies similar or identical to ours and compete directly against us, and our ability to successfully commercialize any
product or technology may be adversely affected.

● We enjoy only limited geographical protection with respect to certain patents and may not be able to protect our intellectual

property rights throughout the world, including in the PRC.

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Table of Contents

● Obtaining  and  maintaining  our  patent  protection  depends  on  compliance  with  various  procedural,  document  submission,  fee
payment,  and  other  requirements  imposed  by  governmental  patent  agencies,  and  our  patent  protection  could  be  reduced  or
eliminated for non-compliance with these requirements.

Risks Related to Our Industry, Business and Operations

● Our future success depends on our ability to attract, retain and motivate senior management and qualified scientific employees.

● We  will  need  to  increase  the  size  and  capabilities  of  our  organization,  and  we  may  experience  difficulties  in  managing  our

growth.

● The  data  and  information  that  we  gather  in  our  research  and  development  process  could  be  inaccurate  or  incomplete,  which

could harm our business, reputation, financial condition and results of operations.

Risks Related to Doing Business in China

● The  PRC  government’s  significant  oversight  and  discretion  over  our  business  operations  could  result  in  a  material  adverse

change in our operations and the value of our ADSs.

● The  PCAOB  had  historically  been  unable  to  inspect  our  auditor  in  relation  to  their  audit  work  performed  for  our  financial
statements and the inability of the PCAOB to conduct inspections of our auditor in the past has deprived our investors with the
benefits of such inspections.

● Our  ADSs  may  be  prohibited  from  trading  in  the  United  States  under  the  HFCAA  in  the  future  if  the  PCAOB  is  unable  to
inspect or investigate completely auditors located in China. The delisting of the ADSs, or the threat of their being delisted, may
materially and adversely affect the value of your investment.

● The approval of and filing with relevant PRC government authorities may be required in connection with our offshore offerings
under PRC law, and, if required, we cannot predict whether or for how long we will be able to obtain such approval or complete
such filing.

General Risks Related to Our ADSs

● The trading price of our ADSs may be volatile, which could result in substantial losses to you.

● We may face an increased risk of securities class action litigation.

Risks Related to Our Financial Position and Need for Additional Capital

We have a limited operating history, which may make it difficult to evaluate our current business and predict our future performance.

We  are  a  clinical  stage  biopharmaceutical  company  with  a  limited  operating  history.  Our  operations  to  date  have  focused  on
organizing and staffing our operations, business planning, raising capital, establishing our intellectual property portfolio and conducting
pre-clinical  and  clinical  trials  of  our  drug  candidates.  We  have  not  yet  demonstrated  an  ability  to  successfully  manufacture,  obtain
marketing  approvals  for  or  commercialize  our  drug  candidates.  We  have  no  products  approved  for  commercial  sale  and  have  not
generated any revenue from the sales of our commercial products. Consequently, any predictions about our future success or viability
may not be as accurate as they could be if we had a longer operating history.

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Table of Contents

We  are  focused  on  the  discovery  and  development  of  innovative  drugs  for  the  treatment  of  various  immuno-oncological  and
immuno-inflammatory  diseases.  Our  limited  operating  history,  particularly  in  light  of  the  rapidly  evolving  drug  research  and
development industry in which we operate and the changing regulatory and market environments we encounter, may make it difficult to
evaluate our prospects for future performance. As a result, any assessment of our future performance or viability is subject to significant
uncertainty.  We  will  encounter  risks  and  difficulties  frequently  experienced  by  early-stage  companies  in  rapidly  evolving  fields  as  we
seek to transition to a company capable of supporting commercial activities. If we do not address these risks and difficulties successfully,
our business will suffer.

We have incurred net losses in the past and we may not be able to maintain profitability in the future.

Investment  in  the  development  of  biopharmaceutical  products  is  highly  speculative  as  it  entails  substantial  upfront  capital
expenditures and significant risks that a drug candidate may fail to demonstrate efficacy and/or safety to gain regulatory or marketing
approvals  or  become  commercially  viable.  To  date,  we  have  financed  our  activities  primarily  through  public  and  private  placements.
While  we  have  generated  revenue  from  licensing  and  collaboration  deals,  we  have  only  started  to  generate  revenue  from  supply  of
investigational products since 2021, and we may continue to incur significant research and development expenses and other expenses
related  to  our  ongoing  operations.  As  a  result,  we  had  generated  a  net  income  of  RMB470.9  million  in  2020  primarily  due  to
contributions from licensing and collaboration deals, incurred a net loss of RMB2,331.5 million in 2021 and a net loss of RMB2,507.3
million (US$363.5 million) in 2022, respectively. Substantially all of our net losses have resulted from costs incurred in connection with
our research and development programs and from general and administrative costs associated with our operations.

We  cannot  assure  you  that  we  will  be  able  to  generate  net  profits  in  the  future.  Our  ability  to  achieve  and  maintain  profitability
depends  in  large  part  on  our  ability  to  out-license  some  of  our  commercialization  rights  and  execute  our  product  commercialization
strategies  as  our  business  further  grows  in  scale.  Accordingly,  we  intend  to  continue  to  invest  for  the  foreseeable  future  in  certain
activities relating to our development, including, but not limited to, the following:

● conducting clinical trials of our drug candidates;

● manufacturing clinical trial materials through contract manufacturing organizations, or CMOs, in and out of China;

● seeking regulatory approvals for our drug candidates;

● commercializing our drug candidates for which we have obtained marketing approval;

● completing the construction of and maintaining our manufacturing facilities;

● hiring additional clinical, operational, financial, quality control and scientific personnel;

● establishing a sales, marketing and commercialization team for any future products that have obtained regulatory approval;

● seeking to identify additional drug candidates;

● obtaining, maintaining, expanding and protecting our intellectual property portfolio;

● enforcing and defending any intellectual property-related claims; and

● acquiring or in-licensing other drug candidates, intellectual property and technologies.

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Table of Contents

Typically,  it  takes  many  years  to  develop  one  new  drug  from  the  time  it  is  discovered  to  when  it  becomes  available  for  treating
patients. During the process, we may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that
may adversely affect our business. The size of our future net losses will depend partially on the rate of the future growth of our expenses,
our ability to generate revenues and the timing and amount of milestone payments and other payments that we receive from or pay to
third parties. If any of our drug candidates fails during clinical trials or does not gain regulatory approval, or, even if approved, fails to
achieve market acceptance, our business may not become profitable. Even if we achieve profitability in the future, we may not be able to
sustain profitability in subsequent periods thereafter. Our prior losses and expected future losses have had, and will continue to have, an
adverse effect on our working capital and shareholders’ equity.

We  recorded  net  cash  outflow  from  operating  activities  in  the  past.  We  may  need  to  obtain  additional  financing  to  fund  our
operations. If we are unable to obtain such financing, we may be unable to complete the development and commercialization of our
major drug candidates.

Since  our  inception,  our  operations  have  consumed  substantial  amounts  of  cash.  We  had  raised  over  US$400  million  in  pre-IPO
financing in the past and received total net proceeds of approximately US$105.3 million from our initial public offering. We generated
RMB433.6  million  in  net  cash  from  our  operations  in  2020  primarily  due  to  collection  of  upfront  payment  from  licensing  and
collaboration deals, and spent RMB973.1 million and RMB1,102.8 million (US$160.0 million) in net cash to finance our operations in
2021 and 2022, respectively.

We expect our expenses to increase significantly in connection with our ongoing activities, particularly as we advance the clinical
development of our clinical-stage drug candidates, continue the research and development of our pre-clinical stage drug candidates and
initiate additional clinical trials of, and seek regulatory approval for, these and other future drug candidates.

In  addition,  if  we  obtain  regulatory  approvals  for  any  of  our  drug  candidates,  we  expect  to  incur  significant  commercialization
expenses relating to product manufacturing, marketing, sales and distribution and post-approval commitments to continue monitoring the
efficacy and safety data of our future products on the market. In particular, costs that may be required for the manufacture of any drug
candidate that has received regulatory approval may be substantial as we may need to modify or increase our production capacity in the
future at manufacturing facilities. We have incurred and may continue to incur expenses as we create additional infrastructure to support
our operations as a public company. Accordingly, we will need to obtain substantial additional funding in connection with our continuing
operations through public or private equity offerings, debt financing, collaborations or licensing arrangements or other sources. If we are
unable  to  raise  capital  when  needed  or  on  acceptable  terms,  we  could  be  forced  to  delay,  limit,  reduce  or  terminate  our  research  and
development programs or any future commercialization efforts.

The COVID-19 pandemic has brought uncertainties and interruptions to global economy and caused significant volatility across the
financial markets, which had a cooling effect on the financing and investing activities in general. We believe that our current cash and
cash equivalents, together with our cash generated from operating activities, financing activities, our initial public offering and private
placement(s), will be sufficient to meet our present anticipated working capital requirements and capital expenditures. However, if the
volatility in the financial markets continues (including the impact that may arise from the COVID-19), our financing activities in future
to raise additional capital may be materially and adversely affected, which may in turn have an adverse effect on our ability to meet our
working capital requirement and our liquidity. For other risks related to the COVID-19, see “—Our business and results of operations
could be adversely affected by public health crisis (including the COVID-19 global pandemic) and natural catastrophes or other disasters
outside of our control in the locations in which we, our suppliers, CROs, CMOs and other contractors operate.”

Raising additional capital may cause dilution to the interests to the holders of our ADSs and our shareholders, restrict our operations
or require us to relinquish rights to our technologies or drug candidates.

We may seek additional funding through a combination of equity offerings, debt financings, collaborations, licensing arrangements,
strategic alliances or partnerships and government grants or subsidies. To the extent that we raise additional capital through the sale of
equity or convertible debt securities, your ownership interest will be diluted, and the terms may include liquidation or other preferences
that  adversely  affect  your  rights  as  a  holder  of  our  ADSs.  The  incurrence  of  additional  indebtedness  or  the  issuance  of  certain  equity
securities  could  give  rise  to  increased  fixed  payment  obligations  and  also  result  in  certain  additional  restrictive  covenants,  such  as
limitations on our ability to incur additional debt or issue additional equity, limitations on our ability to acquire or license intellectual
property rights and other operating restrictions that could adversely impact our ability to conduct our business. In addition, the issuance
of additional equity securities, or the possibility of such issuance, may cause the market price of our ADSs to decline.

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In  the  event  we  enter  into  collaborations  or  licensing  arrangements  in  order  to  raise  capital,  we  may  be  required  to  accept
unfavorable  terms,  including  relinquishing  or  licensing  to  a  third  party  our  rights  to  technologies  or  drug  candidates  on  unfavorable
terms, which we would have otherwise sought to develop or commercialize on our own or reserve for future potential arrangements when
we are more likely to achieve more favorable terms.

Risks Related to Clinical Development of Our Drug Candidates

Clinical development involves a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials
may not be predictive of future trial results.

Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain. While our exclusive focus
is to develop drug candidates with potential to become novel or highly differentiated drugs in China and globally, we cannot guarantee
that we are able to achieve this for any of our drug candidates. Failure can occur at any time during the clinical development process. The
results of pre-clinical studies and early clinical trials of our drug candidates may not be predictive of the results of later-stage clinical
trials.  Drug  candidates  during  later  stages  of  clinical  trials  may  fail  to  show  the  desired  results  in  safety  and  efficacy  despite  having
progressed through pre-clinical studies and initial clinical trials and despite the level of scientific rigor in the study, design and adequacy
of execution. For example, in July 2022, due to an unexpected high incidence of fatal bleeding, MacroGenics terminated a phase 2 study
of  enoblituzumab  as  a  combination  therapy  with  PD-1  antibody  or  PD-1/LAG3  bispecific  antibody  in  patients  with  head  and  neck
cancers. As a result of such incident, we exercised our right to terminate the collaboration agreement with MacroGenics by serving a
termination  notice  on  August  29,  2022  and  the  termination  came  into  effect  in  February  2023.  In  addition,  there  can  be  significant
variability in safety and/or efficacy results among different trials of the same drug candidate due to numerous factors, including, but not
limited  to,  differences  in  individual  patient  conditions,  including  genetic  differences,  and  other  compounding  factors,  such  as  other
medications or pre-existing medical conditions.

In the case of any trials we conduct, results may differ from earlier trials due to the larger number of clinical trial sites and additional
countries  and  languages  involved  in  such  trials.  A  number  of  companies  in  the  biopharmaceutical  industry  have  suffered  significant
setbacks in advanced clinical trials due to a lack of efficacy or adverse safety profiles, notwithstanding promising results in earlier trials.
We cannot guarantee that our future clinical trial results will be favorable based on currently available clinical and pre-clinical data.

We  depend  substantially  on  the  success  of  our  drug  candidates,  all  of  which  are  in  pre-clinical  or  clinical  development,  and  our
ability  to  identify  additional  drug  candidates.  If  we  are  unable  to  successfully  identify  new  drug  candidates,  complete  clinical
development, obtain regulatory approval and commercialize our drug candidates, or experience significant delays in doing so, our
business will be materially harmed.

Our business will depend on the successful development, regulatory approval and commercialization of our drug candidates for the
treatment  of  patients  with  our  targeted  indications,  all  of  which  are  still  in  pre-clinical  or  clinical  development,  and  other  new  drug
candidates  that  we  may  identify  and  develop.  As  of  the  date  of  this  annual  report,  we  have  obtained  investigational  new  drug  (IND)
approvals from the NMPA for seven of our drug candidates, felzartamab, efineptakin alfa, lemzoparlimab, uliledlimab, eftansomatropin
alfa, TJ210 and givastomig. In addition, we have obtained IND approvals from the FDA for five of our drug candidates, lemzoparlimab,
uliledlimab,  TJ210,  TJ-L14B  and  givastomig  and  from  the  Taiwan  Food  and  Drug  Administration  (the  “TFDA”)  for  felzartamab.
However, we cannot guarantee that we are able to obtain regulatory approvals for our other existing drug candidates in a timely manner,
or at all. In addition, none of our drug candidates has been approved for marketing in China or any other jurisdiction. Each of our drug
candidates will require additional pre-clinical and/ or clinical development, regulatory approvals in multiple jurisdictions, development
of  manufacturing  supply  and  capacity,  substantial  investment  and  significant  marketing  efforts  before  we  generate  any  revenue  from
product sales.

The success of our drug candidates will depend on several factors, including, but not limited to, the successful completion of pre-
clinical and/or clinical trials or studies, receipt of regulatory approvals from applicable regulatory authorities for planned clinical trials,
future  clinical  trials  or  drug  registrations,  establishing  adequate  manufacturing  capabilities  and  capacities,  commercialization  of  our
existing drug candidates, hiring sufficient technical experts to oversee all development and regulatory activities and license renewal and
meeting of the safety requirements.

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If we do not achieve one or more of these in a timely manner or at all, we could experience significant delays in our ability to obtain
approval for our drug candidates, which would materially harm our business and we may not be able to generate sufficient revenues and
cash  flows  to  continue  our  operations.  As  a  result,  our  financial  condition,  results  of  operations  and  prospects  will  be  materially  and
adversely harmed.

We  may  not  be  able  to  identify,  discover  or  in-license  new  drug  candidates,  and  may  allocate  our  limited  resources  to  pursue  a
particular  drug  candidate  or  indication  and  fail  to  capitalize  on  drug  candidates  or  indications  that  may  later  prove  to  be  more
profitable, or for which there is a greater likelihood of success.

Although a substantial amount of our effort will focus on the continued clinical testing, potential approval, and commercialization of
our  existing  drug  candidates,  the  success  of  our  business  depends  in  part  upon  our  ability  to  identify,  license,  discover,  develop,  or
commercialize  additional  drug  candidates.  Research  programs  to  identify  new  drug  candidates  require  substantial  technical,  financial,
and  human  resources.  We  may  focus  our  efforts  and  resources  on  potential  programs  or  drug  candidates  that  ultimately  prove  to  be
unsuccessful.  Our  research  programs  or  licensing  efforts  may  fail  to  identify,  discover  or  in-license  new  drug  candidates  for  clinical
development and commercialization for a number of reasons, including, without limitation, the following:

● our research or business development methodology or search criteria and process may be unsuccessful in identifying potential

drug candidates;

● our potential drug candidates may be shown to have harmful side effects or may have other characteristics that may make the

products unmarketable or unlikely to receive marketing approval; and

● it may take greater human and financial resources to identify additional therapeutic opportunities for our drug candidates or to
develop suitable potential drug candidates through internal research programs than we possess, thereby limiting our ability to
diversify and expand our drug portfolio.

Because  we  have  limited  financial  and  managerial  resources,  we  focus  on  research  programs  and  drug  candidates  for  specific
indications. As a result, we may forgo or delay pursuit of opportunities with other drug candidates or for other indications that later may
prove to have greater commercial potential or a greater likelihood of success. Our resource allocation decisions may cause us to fail to
capitalize on viable commercial products or profitable market opportunities.

Accordingly,  there  can  be  no  assurance  that  we  will  ever  be  able  to  identify  additional  therapeutic  opportunities  for  our  drug
candidates or to develop suitable potential drug candidates through internal research programs, which could materially adversely affect
our future growth and prospects.

If we encounter delays or difficulties enrolling patients in our clinical trials, our clinical development progress could be delayed or
otherwise adversely affected.

We may not be able to initiate or continue clinical trials for our drug candidates if we are unable to locate and enroll a sufficient
number of eligible patients to participate in these trials as required by the NMPA, the FDA, or similar regulatory authorities, or if there
are delays in the enrollment of eligible patients as a result of the competitive clinical enrollment environment. The inability to enroll a
sufficient number of patients who meet the applicable criteria for our clinical trials would result in significant delays. As of the date of
this  annual  report,  we  have  initiated  clinical  trials  for  efineptakin  alfa  and  eftansomatropin  alfa  in  China,  for  felzartamab  in  Greater
China, for TJ210 and TJ-L14B in the United States, for lemzoparlimab, uliledlimab and givastomig in China and the United States.

In  addition,  some  of  our  competitors  have  ongoing  clinical  trials  for  drug  candidates  that  treat  the  same  indications  as  our  drug
candidates, and patients who would otherwise be eligible for our clinical trials may instead enroll in the clinical trials of our competitors’
drug candidates, which may further delay our clinical trial enrollments.

Patient enrollment for our clinical trials may be affected by other factors, including, but not limited to, the following:

● severity of the disease under investigation;

● total size and nature of the relevant patient population;

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● design and eligibility criteria for the clinical trial in question;

● perceived risks and benefits of the drug candidate under study;

● our resources to facilitate timely enrollment in clinical trials;

● patient referral practices of physicians;

● availability of competing therapies also undergoing clinical trials;

● our investigators’ or clinical trial sites’ efforts to screen and recruit eligible patients; and

● proximity and availability of clinical trial sites for prospective patients.

Even if we are able to enroll a sufficient number of patients in our clinical trials, delays in patient enrollment may result in increased
costs  or  may  affect  the  timing  or  outcome  of  the  planned  clinical  trials,  which  could  prevent  completion  of  these  trials  and  adversely
affect our ability to advance the development of our drug candidates.

If clinical trials of our drug candidates fail to demonstrate safety and efficacy to the satisfaction of regulatory authorities or do not
otherwise  produce  positive  results,  we  may  incur  additional  costs  or  experience  delays  in  completing,  or  ultimately  be  unable  to
complete, the development and commercialization of our drug candidates.

Before obtaining regulatory approval for the sale of our drug candidates, we must conduct extensive clinical trials to demonstrate the
safety and efficacy of our drug candidates in humans. We may experience numerous unexpected events during, or as a result of, clinical
trials  that  could  delay  or  prevent  our  ability  to  receive  regulatory  approval  or  commercialize  our  drug  candidates,  including,  without
limitation:

● regulators, institutional review boards, or IRBs, or ethics committees may not authorize us or our investigators to commence a

clinical trial or conduct a clinical trial at a prospective trial site;

● our inability to reach agreements on acceptable terms with prospective CROs and trial sites, the terms of which can be subject

to extensive negotiation and may vary significantly among different CROs and trial sites;

● manufacturing issues, including problems with manufacturing, supply quality, compliance with good manufacturing practice, or

GMP, or obtaining sufficient quantities of a drug candidate from third parties for use in a clinical trial;

● our partners identify safety concerns in the clinical assets that we licensed, which lead to the termination of the collaboration

and development of the underlying clinical assets with our partners;

● clinical trials of our drug candidates may produce negative or inconclusive results, and we may decide to conduct additional

clinical trials or abandon drug development programs, or regulators may require us to do so;

● the number of patients required for clinical trials of our drug candidates may be larger than we anticipate, enrollment may be

insufficient or slower than we anticipate or patients may drop out at a higher rate than we anticipate;

● our  third-party  contractors,  including  clinical  investigators,  may  fail  to  comply  with  regulatory  requirements  or  meet  their

contractual obligations to us in a timely manner, or at all;

● we might have to suspend or terminate clinical trials of our drug candidates for various reasons, including a finding of a lack of
clinical  response  or  other  unexpected  characteristics  or  a  finding  that  participants  are  being  exposed  to  unacceptable  health
risks;

● regulators, IRBs or ethics committees may require that we or our investigators suspend or terminate clinical research or not rely

on the results of clinical research for various reasons, including non-compliance with regulatory requirements;

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● the cost of clinical trials of our drug candidates may be greater than we anticipate; and

● the supply or quality of our drug candidates, companion diagnostics or other materials necessary to conduct clinical trials of our

drug candidates may be insufficient or inadequate.

If we fail to timely and effectively address the above challenges, we may (i) be delayed in obtaining regulatory approval for our drug
candidates; (ii) obtain approval for indications that are not as broad as intended; (iii) not obtain regulatory approval at all; (iv) have the
drug removed from the market after obtaining regulatory approval; (v) be subject to additional post-marketing testing requirements; (vi)
be subject to restrictions on how the drug is distributed or used; or (vii) be unable to obtain reimbursement for use of the drug.

Significant clinical trial delays may also increase our development costs and could shorten any periods during which we have the
exclusive right to commercialize our drug candidates or allow our competitors to bring drugs to market before we do. This could impair
our ability to commercialize our drug candidates and may harm our business and results of operations.

Risks Related to Obtaining Regulatory Approval for Our Drug Candidates

All material aspects of the research, development and commercialization of pharmaceutical products are heavily regulated.

All  jurisdictions  in  which  we  intend  to  conduct  our  pharmaceutical-industry  activities  regulate  these  activities  in  great  depth  and
detail.  We  intend  to  focus  our  activities  in  the  major  markets  of  China  and  the  United  States.  These  jurisdictions  strictly  regulate  the
pharmaceutical industry, and in doing so they employ broadly similar regulatory strategies, including regulation of product development
and approval, manufacturing, and marketing, sales and distribution of products. However, there are differences in the regulatory regimes
that make for a more complex and costly regulatory compliance burden for a company like us that plans to operate in these regions.

The  process  of  obtaining  regulatory  approvals  and  compliance  with  appropriate  laws  and  regulations  requires  the  expenditure  of
substantial time and financial resources. Failure to comply with the applicable requirements at any time during the product development
process and approval process, or after approval, may subject an applicant to administrative or judicial sanctions. These sanctions could
include: refusal to approve pending applications; withdrawal of an approval; license revocation; clinical hold; voluntary or mandatory
product  recalls;  product  seizures;  total  or  partial  suspension  of  production  or  distribution;  injunctions;  fines;  refusals  of  government
contracts; providing restitution; undergoing disgorgement; or other civil or criminal penalties. Failure to comply with these regulations
could have a material adverse effect on our business.

The regulatory approval processes of the NMPA, the FDA and other comparable regulatory authorities are time-consuming and may
evolve  over  time,  and  if  we  are  ultimately  unable  to  obtain  regulatory  approval  for  our  drug  candidates,  our  business  will  be
substantially harmed.

The time required to obtain the approval of the NMPA, the FDA and other comparable regulatory authorities is inherently uncertain
and depends on numerous factors, including the substantial discretion of the regulatory authorities. Generally, such approvals take many
years to obtain following the commencement of pre-clinical studies and clinical trials, although they are typically provided within 12 to
18 months after clinical trials are completed. In addition, approval policies, regulations or the type and amount of clinical data necessary
to gain approval may change during the course of a drug candidate’s clinical development and may vary among jurisdictions. As of the
date of this annual report, we have obtained IND approvals from the NMPA for seven of our drug candidates, felzartamab, efineptakin
alfa,  lemzoparlimab,  uliledlimab,  eftansomatropin  alfa,  TJ210  and  givastomig.  In  addition,  we  have  obtained  IND  approvals  from  the
FDA  for  five  of  our  drug  candidates,  lemzoparlimab,  uliledlimab,  TJ210,  TJ-L14B  and  givastomig;  from  the  TFDA  for  felzartamab.
However,  we  cannot  guarantee  that  we  are  able  to  obtain  regulatory  approvals  for  our  other  existing  drug  candidates  or  any  drug
candidates we may discover, in-license or acquire and seek to develop in the future.

Our drug candidates could fail to receive the regulatory approval of the NMPA, the FDA or a comparable regulatory authority for

many reasons, including, without limitation:

● disagreement with the design or implementation of our clinical trials;

● failure to demonstrate that a drug candidate is safe and effective and potent for its proposed indication;

● failure of our clinical trial results to meet the level of statistical significance required for approval;

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● failure of our clinical trial process to pass relevant good clinical practice (“GCP”) inspections;

● failure to demonstrate that a drug candidate’s clinical and other benefits outweigh its safety risks;

● disagreement with our interpretation of data from pre-clinical studies or clinical trials;

● insufficient  data  collected  from  the  clinical  trials  of  our  drug  candidates  to  support  the  submission  and  filing  of  a  new  drug

application, or NDA, or other submissions or to obtain regulatory approval;

● failure of our drug candidates to pass current Good Manufacturing Practice (“GMP”), inspections during the regulatory review

process or across the production cycle of our drug;

● failure of our clinical sites to pass audits carried out by the NMPA, the FDA or comparable regulatory authorities, resulting in a

potential invalidation of our research data;

● findings by the NMPA, the FDA or comparable regulatory authorities of deficiencies related to our manufacturing processes or

the facilities of third-party manufacturers with whom we contract for clinical and commercial supplies;

● changes in approval policies or regulations that render our pre-clinical and clinical data insufficient for approval; and

● failure of our clinical trial process to keep up with any scientific or technological advancements required by approval policies or

regulations.

The  NMPA,  the  FDA  or  a  comparable  regulatory  authority  may  require  more  information,  including  additional  pre-clinical  or
clinical  data,  to  support  approval,  which  may  delay  or  prevent  approval  and  our  commercialization  plans.  Even  if  we  were  to  obtain
approval,  regulatory  authorities  may  approve  any  of  our  drug  candidates  for  fewer  or  more  limited  indications  than  we  request,  grant
approval contingent on the performance of costly post-marketing clinical trials, or approve a drug candidate with an indication that is not
desirable  for  the  successful  commercialization  of  that  drug  candidate.  Any  of  the  foregoing  scenarios  could  materially  harm  the
commercial prospects of our drug candidates.

The  failure  to  obtain  patent  term  extension  and  data  exclusivity  for  approved  pharmaceutical  products  could  increase  the  risk  of
generic competition with our products.

In the United States, the Federal Food, Drug and Cosmetic Act, as amended by the law generally referred to as “Hatch-Waxman,”
provides the opportunity for patent-term restoration, meaning a patent term extension of up to five years to reflect patent term lost during
certain portions of product development and the FDA regulatory review process. Hatch-Waxman also has a process for patent linkage,
pursuant to which the FDA will stay approval of certain follow-on applications during the pendency of litigation between the follow-on
applicant  and  the  patent  holder  or  licensee,  generally  for  a  period  of  30  months.  Finally,  Hatch-Waxman  provides  for  statutory
exclusivities that can prevent submission or approval of certain follow-on marketing applications. For example, federal law provides a
five-year period of exclusivity within the United States to the first applicant to obtain approval of a new chemical entity and three years
of exclusivity protecting certain innovations to previously approved active ingredients where the applicant was required to conduct new
clinical  investigations  to  obtain  approval  for  the  modification.  Similarly,  the  United  States  Orphan  Drug  Act  provides  seven  years  of
market exclusivity for certain drugs to treat rare diseases, where the FDA designates the drug candidate as an orphan drug and the drug is
approved for the designated orphan indication. These provisions, designed to promote innovation, can prevent competing products from
entering the market for a certain period of time after the FDA grants marketing approval for the innovative product.

Depending  upon  the  timing,  duration  and  specifics  of  any  FDA  marketing  approval  process  for  any  drug  candidates  we  may
develop,  one  or  more  of  our  U.S.  patents,  if  issued,  may  be  eligible  for  limited  patent  term  extension  under  Hatch-Waxman.  Hatch-
Waxman  permits  a  patent  extension  term  of  up  to  five  years  as  compensation  for  patent  term  lost  during  clinical  trials  and  the  FDA
regulatory review process. A patent term extension cannot extend the remaining term of a patent beyond a total of 14 years from the date
of drug approval, only one patent may be extended and only those claims covering the approved drug, a method for using it, or a method
for manufacturing it may be extended. However, we may not be granted an extension because of, for example, failing to exercise due
diligence  during  the  testing  phase  or  regulatory  review  process,  failing  to  apply  within  applicable  deadlines,  failing  to  apply  prior  to
expiration  of  relevant  patents,  or  otherwise  failing  to  satisfy  applicable  requirements.  Furthermore,  the  applicable  time  period  or  the
scope of patent protection afforded could be less than we request.

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In China, the PRC Patent Law, which was most recently amended by the Standing Committee of the National People’s Congress on
October 17, 2020, and became effective on June 1, 2021, for the first time, generally provides for patent term compensation and patent
linkage system. Under the PRC Patent Law, patent term compensation can be obtained for regulatory delays in the review and approval
of new drugs but are limited to no more than five years and the total post-marketing patent term of the new drug cannot exceed 14 years,
which  is  similar  to  the  provisions  of  Hatch-Waxman.  However,  to  be  implemented,  the  patent  term  compensation  requires  further
promulgation of detailed implementation measures. Depending upon the timing, duration and specifics of any NMPA marketing approval
process for any drug candidates we may develop, one or more of our China patents, if issued, may not be eligible for or only be eligible
for  limited  patent  term  compensation.  The  PRC  Patent  Law,  for  the  first  time,  introduces  a  system  for  the  early  resolution  of  patent
disputes  concerning  generic  drug  applications,  which  is  similar  to  the  U.S.  patent  linkage  system.  The  Implementation  Measures  for
Early Resolution Mechanism of Pharmaceutical Patent Disputes (for Trial Implementation) jointly issued by the NMPA and the China
National  Intellectual  Property  Administration  (the  “CNIPA”)  on  July  4,  2021  and  the  Administrative  Ruling  Measures  on  the  Early
Resolution Mechanism for Drug Patent Dispute issued by the CNIPA on July 5, 2021 collectively set forth, for the first time, details of
how  such  patent  linkage  system  would  be  implemented.  As  the  China  trial  version  of  patent  linkage  system  was  just  implemented
commencing  from  July  2021,  substantial  uncertainties  remain  as  to  whether  this  trial  system  can  effectively  block  early  generic
competition with our products. Although the Regulations for Implementation of the Drug Administration Law of the People’s Republic
of  China  has  provided  six-year  data  exclusivity  for  a  new  chemical  entity,  and  Chinese  regulators  have  proposed  a  framework  for
integrating  data  exclusivity  into  the  Chinese  regulatory  regime  in  2018,  the  system  of  data  exclusivity  was  not  really  implemented  in
practice.  Consequently,  the  absence  of  currently  implemented  data  exclusivity  may  result  in  weaker  protection  for  us  against  generic
competition in China than could be available to us in the United States. If we are unable to obtain patent term extension or the term of
any such extension is less than we request, our competitors may obtain approval of competing products following our patent expiration,
and our business, financial condition, results of operations, and prospects could be materially harmed.

Our  drug  candidates  may  cause  undesirable  adverse  events  or  have  other  properties  that  could  delay  or  prevent  their  regulatory
approval,  limit  the  commercial  profile  of  an  approved  label,  or  result  in  significant  negative  consequences  following  regulatory
approval.

Undesirable adverse events caused by our drug candidates could cause us or regulatory authorities to interrupt, delay or halt clinical
trials and may result in a more restrictive label, a delay or denial of regulatory approval by the NMPA, the FDA or other comparable
regulatory  authorities,  or  a  significant  change  in  our  clinical  protocol  or  even  our  development  plan.  In  particular,  as  is  the  case  with
drugs treating cancers and auto-immune diseases, it is likely that there may be side effects, such as nausea, fatigue and infusion-related
reactions, associated with the use of certain of our drug candidates. Results of our trials could reveal a high and unacceptable severity or
prevalence of certain adverse events. In such an event, our trials could be suspended or terminated and the NMPA, the FDA or other
comparable regulatory authorities could order us to cease further development of, or deny approval of, our drug candidates for any or all
targeted indications. Adverse events related to our drug candidates may affect patient recruitment or the ability of enrolled subjects to
complete the trial, and could result in potential liability claims. Any of these occurrences may significantly harm our reputation, business,
financial condition and prospects.

Additionally,  if  we  or  others  identify  undesirable  side  effects  caused  by  those  of  our  existing  drug  candidates  that  have  received
regulatory  approval,  or  our  other  drug  candidates  after  having  received  regulatory  approval,  this  may  lead  to  potentially  significant
negative consequences which include, but are not limited to, the following:

● we may suspend marketing of the drug candidate;

● regulatory authorities may withdraw their approvals of or revoke the licenses for the drug candidate;

● regulatory authorities may require additional warnings on the label;

● the FDA may require the establishment of a Risk Evaluation and Mitigation Strategy, or REMS, or the NMPA or a comparable
regulatory authority may require the establishment of a similar strategy that may, for instance, restrict distribution of our drugs
and impose burdensome implementation requirements on us;

● we may be required to conduct specific post-marketing studies;

● we could be subjected to litigation proceedings and held liable for harm caused to subjects or patients; and

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● our reputation may suffer.

Any  of  these  events  could  prevent  us  from  achieving  or  maintaining  market  acceptance  of  any  particular  drug  candidate  that  is

approved and could significantly harm our business, results of operations and prospects.

Further,  combination  therapy,  such  as  using  our  wholly-owned  drug  candidates  as  well  as  third-party  agents,  may  involve  unique
adverse events that could be exacerbated compared with adverse events from monotherapies. Results of our trials could reveal a high and
unacceptable severity or prevalence of adverse events. These types of adverse events could be caused by our drug candidates and could
cause us or regulatory authorities to interrupt, delay or halt clinical trials and may result in a more restrictive indication or the delay or
denial of regulatory approval by the NMPA, the FDA or other comparable regulatory authority.

If  we  are  unable  to  obtain  the  NMPA  approval  for  our  drug  candidates  to  be  eligible  for  an  expedited  registration  pathway  as
innovative drug candidates, the time and cost we incur to obtain regulatory approvals may increase.

The NMPA has mechanisms in place for expedited review and approval for drug candidates that are innovative drug applications,
provided such drug or drug candidate has a new and clearly defined structure, pharmacological property and apparent clinical value and
has not been marketed anywhere in the world. However, there is no assurance that an innovative drug designation will be granted by the
NMPA for any of our drug candidates. Moreover, an innovative drug designation, which is typically granted only towards the end of a
drug’s  developmental  stage,  does  not  increase  the  likelihood  that  our  drug  candidates  will  receive  regulatory  approval  on  a  fast-track
basis, or at all.

Further, there have been recent regulatory initiatives in China in relation to clinical trial approvals, the evaluation and approval of

certain drugs and medical devices and the simplification and acceleration of the clinical trial process.

As  a  result,  the  regulatory  process  in  China  is  evolving  and  subject  to  change.  Any  future  policies,  or  changes  to  current  polices
might require us to change our planned clinical study design or otherwise spend additional resources and effort to obtain approval of our
drug  candidates.  In  addition,  policy  changes  may  contain  significant  limitations  related  to  use  restrictions  for  certain  age  groups,
warnings, precautions or contraindications, or may be subject to burdensome post-approval study or risk management requirements. If
we are unable to obtain regulatory approval for our drug candidates in the PRC, or any approval contains significant limitations, we may
not be able to obtain sufficient funding or generate sufficient revenue to continue the development of our drug candidates or any other
drug candidate that we may in-license, acquire or develop in the future.

Even if we receive regulatory approval for our drug candidates, we will be subject to ongoing regulatory obligations and continued
regulatory review, which may result in significant additional expenses and we may be subject to penalties if we fail to comply with
regulatory requirements or experience unanticipated problems with our drug candidates.

If  the  NMPA,  the  FDA  or  a  comparable  regulatory  authority  approves  any  of  our  drug  candidates,  the  manufacturing  processes,
labeling, packaging, distribution, adverse event reporting, storage, advertising, promotion and recordkeeping for the drug will be subject
to  extensive  and  ongoing  regulatory  requirements  on  pharmacovigilance.  These  requirements  include  submissions  of  safety  and  other
post-marketing  information  and  reports,  registration,  random  quality  control  testing,  adherence  to  any  chemistry,  manufacturing,  and
controls (“CMC”), variations, continued compliance with current GMPs, and GCPs and potential post-approval studies for the purposes
of license renewal.

Any regulatory approvals that we receive for our drug candidates may also be subject to limitations on the approved indicated uses
for  which  the  drug  may  be  marketed  or  to  the  conditions  of  approval,  or  contain  requirements  for  potentially  costly  post-marketing
studies, including Phase 4 studies for the surveillance and monitoring of the safety and efficacy of the drug.

In addition, once a drug is approved by the NMPA, the FDA or a comparable regulatory authority for marketing, it is possible that
there could be a subsequent discovery of previously unknown problems with the drug, including problems with third-party manufacturers
or manufacturing processes, or failure to comply with regulatory requirements. If any of the foregoing occurs with respect to our drug
products, it may result in, among other things:

● restrictions on the marketing or manufacturing of the drug, withdrawal of the drug from the market, or voluntary or mandatory

drug recalls;

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● fines, warning letters or holds on our clinical trials;

● refusal  by  the  NMPA,  the  FDA  or  comparable  regulatory  authorities  to  approve  pending  applications  or  supplements  to

approved applications filed by us, or suspension or revocation of drug license approvals;

● refusal by the NMPA, the FDA or comparable regulatory authorities to accept any of our other IND approvals, NDAs or BLAs;

● drug seizure or detention, or refusal to permit the import or export of drugs; and

● injunctions or the imposition of civil, administrative or criminal penalties.

Any  government  investigation  of  alleged  violations  of  law  could  require  us  to  expend  significant  time  and  resources  and  could
generate negative publicity. Moreover, regulatory policies may change or additional government regulations may be enacted that could
prevent, limit or delay regulatory approval of our drug candidates. If we are not able to maintain regulatory compliance, we may lose the
regulatory approvals that we have already obtained and may not achieve or sustain profitability, which in turn could significantly harm
our business, financial condition and prospects.

Illegal and/or parallel imports and counterfeit pharmaceutical products may reduce demand for our future approved drug candidates
and could have a negative impact on our reputation and business.

The illegal importation of competing products from countries where government price controls or other market dynamics result in
lower prices may adversely affect the demand for our future approved drug candidates and, in turn, may adversely affect our sales and
profitability in China and other countries where we commercialize our products. Unapproved foreign imports of prescription drugs are
illegal under the current laws of China. However, illegal imports may continue to occur or even increase as the ability of patients and
other customers to obtain these lower priced imports continues to grow. Furthermore, cross-border imports from lower-priced markets
(which  are  known  as  parallel  imports)  into  higher-priced  markets  could  harm  sales  of  our  future  drug  products  and  exert  commercial
pressure on pricing within one or more markets. In addition, competent government authorities may expand consumers’ ability to import
lower priced versions of our future approved products or competing products from outside China or other countries where we operate.
Any  future  legislation  or  regulations  that  increase  consumer  access  to  lower  priced  medicines  from  outside  China  or  other  countries
where we operate could have a material adverse effect on our business.

Certain products distributed or sold in the pharmaceutical market may be manufactured without proper licenses or approvals, or be
fraudulently  mislabeled  with  respect  to  their  content  or  manufacturers.  These  products  are  generally  referred  to  as  counterfeit
pharmaceutical  products.  The  counterfeit  pharmaceutical  product  control  and  enforcement  system,  particularly  in  developing  markets
such as China, may be inadequate to discourage or eliminate the manufacturing and sale of counterfeit pharmaceutical products imitating
our  products.  Since  counterfeit  pharmaceutical  products  in  many  cases  have  very  similar  appearances  compared  with  the  authentic
pharmaceutical  products  but  are  generally  sold  at  lower  prices,  counterfeits  of  our  products  could  quickly  erode  the  demand  for  our
future approved drug candidates.

In  addition,  counterfeit  pharmaceutical  products  are  not  expected  to  meet  our  or  our  collaborators’  rigorous  manufacturing  and
testing  standards.  A  patient  who  receives  a  counterfeit  pharmaceutical  product  may  be  at  risk  for  a  number  of  dangerous  health
consequences. Our reputation and business could suffer harm as a result of counterfeit pharmaceutical products sold under our or our
collaborators’ brand name(s). In addition, thefts of inventory at warehouses, plants or while in-transit, which are not properly stored and
which are sold through unauthorized channels, could adversely impact patient safety, our reputation and our business.

Risks Related to Commercialization of Our Drug Candidates

Our drug candidates may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others in the
medical community necessary for commercial success.

Even  if  our  drug  candidates  receive  regulatory  approval,  they  may  nonetheless  fail  to  gain  sufficient  market  acceptance  by
physicians and patients and others in the medical community. Physicians and patients may prefer other drugs or drug candidates to ours.
If our drug candidates do not achieve an adequate level of acceptance, we may not generate significant revenue from sales of our drugs or
drug candidates and may not become profitable.

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The degree of market acceptance of our drug candidates, if and only when they are approved for commercial sale, will depend on a

number of factors, including, but not limited to:

● the clinical indications for which our drug candidates are approved;

● physicians, hospitals and patients considering our drug candidates as a safe and effective treatment;

● whether our drug candidates have achieved the perceived advantages of our drug candidates over alternative treatments;

● the prevalence and severity of any side effects;

● product labeling or package insert requirements of the NMPA, the FDA or other comparable regulatory authorities;

● limitations or warnings contained in the labeling approved by the NMPA, the FDA or other comparable regulatory authorities;

● timing of market introduction of our drug candidates as well as competitive drugs;

● cost of treatment in relation to alternative treatments;

● availability of adequate coverage and reimbursement under the national and provincial reimbursement drug lists in the PRC, or

from third-party payors and government authorities in the United States or any other jurisdictions;

● willingness of patients to pay any out-of-pocket expenses in the absence of coverage and reimbursement by third-party payors

and government authorities;

● relative convenience and ease of administration, including as compared with alternative treatments and competitive therapies;

and

● the effectiveness of our sales and marketing efforts.

If  our  drug  candidates  are  approved  but  fail  to  achieve  market  acceptance  among  physicians,  patients,  hospitals  or  others  in  the
medical  community,  we  will  not  be  able  to  generate  significant  revenue  or  become  profitable.  Even  if  our  drugs  achieve  market
acceptance, we may not be able to maintain such market acceptance over time if new products or technologies are introduced which are
more favorably received than our drugs, are more cost effective or render our drugs obsolete.

We face intense competition and rapid technological change and the possibility that our competitors may develop therapies that are
similar,  more  advanced,  or  more  effective  than  ours,  which  may  adversely  affect  our  financial  condition  and  our  ability  to
successfully commercialize our drug candidates.

The biotechnology and pharmaceutical industries are intensely competitive and subject to rapid and significant technological change.
While our exclusive focus is to develop drug candidates with potential to become novel or highly differentiated drugs, we continue to
face competition with respect to our current drug candidates, and will face competition with respect to any drug candidates that we may
seek  to  develop  or  commercialize  in  the  future.  Our  competitors  include  major  pharmaceutical  companies,  specialty  pharmaceutical
companies and biotechnology companies worldwide. We are developing our drug candidates for the treatment of cancer in competition
with a number of large biopharmaceutical companies that currently market and sell drugs or are pursuing the development of drugs also
for  the  treatment  of  cancer.  Some  of  these  competitive  drugs  and  therapies  are  based  on  scientific  approaches  that  are  the  same  as  or
similar to our approach, and others are based on entirely different approaches. For details, see “Item 4. Information on the Company—B.
Business  Overview—Our  Drug  Pipeline.”  Potential  competitors  further  include  academic  institutions,  government  agencies  and  other
public  and  private  research  organizations  that  conduct  research,  seek  patent  protection  and  establish  collaborative  arrangements  for
research, development, manufacturing and commercialization.

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Many of our competitors have substantially greater financial, technical, and other resources, such as larger research and development
staff  and  experienced  marketing  and  manufacturing  organizations.  Additional  mergers  and  acquisitions  in  the  biotechnology  and
pharmaceutical industries may result in even more resources being concentrated in our competitors. As a result, these companies may
obtain regulatory approval from the NMPA, the FDA or other comparable regulatory authorities more rapidly than we are able to and
may be more effective in selling and marketing their products as well. For example, the NMPA has recently accelerated market approval
of drugs for diseases with high unmet medical need. In particular, the NMPA may review and approve drugs that have gained regulatory
market  approval  in  the  United  States,  the  European  Union  or  Japan  in  the  recent  ten  years  without  requiring  further  clinical  trials  in
China. This may lead to potential increased competition from drugs which have already obtained approval in other jurisdictions.

Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with
large, established companies. Competition may increase further as a result of advances in the commercial applicability of technologies
and greater availability of capital for investment in these industries. Our competitors may succeed in developing, acquiring, or licensing
on an exclusive basis, products that are more effective or less costly than any drug candidate that we may develop, or achieve earlier
patent  protection,  regulatory  approval,  product  commercialization,  and  market  penetration  than  we  do.  Additionally,  technologies
developed  by  our  competitors  may  render  our  potential  drug  candidates  uneconomical  or  obsolete,  and  we  may  not  be  successful  in
marketing our drug candidates against competitors.

The  manufacture  of  biopharmaceutical  products  is  a  complex  process  which  requires  significant  expertise  and  capital  investment,
and  if  we  encounter  problems  in  sourcing  manufacturing  capabilities  or  manufacturing  our  future  products,  our  business  could
suffer.

We have limited experience in managing the manufacturing process. The manufacture of biopharmaceutical products is a complex
process,  in  part  due  to  strict  regulatory  requirements.  We  have  invested  in  a  comprehensive  biologics  manufacturing  facility  in
Hangzhou,  China  (the  “Hangzhou  Facility”)  held  by  I-Mab  Biopharma  (Hangzhou)  Limited  (“I-Mab  Hangzhou”),  an  unconsolidated
affiliate of our company, as part of our strategic plan to become a global biopharma company. Concrete steps have been taken to execute
this plan. These steps include detailed operational planning for the facility, actions taken to secure an appropriate site, and negotiations
with  external  financing  providers.  The  construction  of  the  Hangzhou  Facility  commenced  in  April  2021.  The  Hangzhou  Facility  has
established a pilot capacity of two production lines (one line configured with 2 x 2,000L and the other line with 1 x 2,000L). However,
the  investment  for  building  the  new  biologics  manufacturing  facility  that  is  compliant  with  cGMP  regulations  will  be  a  significant
upfront cost for I-Mab Hangzhou and its shareholders. In turn, this could materially harm our commercialization plans.

In addition, problems may arise during the manufacturing process for a variety of reasons, including equipment malfunction, failure
to follow specific protocols and procedures, problems with raw materials, delays related to the construction of new facilities or expansion
of any future manufacturing facilities, including changes in manufacturing production sites and limits to manufacturing capacity due to
regulatory  requirements,  changes  in  the  types  of  products  produced,  increases  in  the  prices  of  raw  materials,  physical  limitations  that
could inhibit continuous supply, man-made or natural disasters and environmental factors. If problems arise during the production of a
batch of future products, that batch of future products may have to be discarded and we may experience product shortages or incur added
expenses.  This  could,  among  other  things,  lead  to  increased  costs,  lost  revenue,  damage  to  customer  relationships,  time  and  expense
spent investigating the cause and, depending on the cause, similar losses with respect to other batches or products. If problems are not
discovered before such product is released to the market, recall and product liability costs may also be incurred.

We have no experience in launching and marketing drug candidates. We may not be able to effectively build and manage our sales
network, or benefit from third-party collaborators’ sales network.

We currently have no sales, marketing or commercial product distribution capabilities and have no experience in marketing drugs.
We  and  our  third-party  collaborators  will  have  to  compete  with  other  biopharmaceutical  companies  to  recruit,  hire,  train  and  retain
marketing and sales personnel.

If  we  are  unable  or  decide  not  to  establish  internal  sales,  marketing  and  commercial  distribution  capabilities  for  any  or  all  of  the
drugs we develop, we will likely pursue collaborative arrangements regarding the sales and marketing of our drugs. However, there can
be no assurance that we will be able to establish or maintain such collaborative arrangements, or, if we are able to do so, that they will
have effective sales forces. Any revenue we receive will depend on the efforts of such third parties, which may not be successful. We
may have little or no control over the marketing and sales efforts of such third parties, and our revenue from product sales may be lower
than if we had commercialized our drug candidates ourselves. We will also face competition in our search for third parties to assist us
with the sales and marketing efforts of our drug candidates.

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There can be no assurance that we will be able to develop in-house sales and commercial distribution capabilities or establish or
maintain relationships with third-party collaborators to successfully commercialize any product, and as a result, we may not be able to
generate product sales revenue.

Even if we are able to commercialize any approved drug candidates, reimbursement may be limited or unavailable in certain market
segments for our drug candidates, and we may be subject to unfavorable pricing regulations, which could harm our business.

The regulations that govern regulatory approvals, pricing and reimbursement for new therapeutic products vary widely from country
to country. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review
period begins after marketing or licensing approval is granted. In some non-U.S. markets, prescription pharmaceutical pricing remains
subject to continuing governmental control even after initial approval is granted. As a result, we might obtain regulatory approval for a
drug in a particular country, but then be subject to price regulations that delay our commercial launch of the drug and negatively impact
the  revenues  we  are  able  to  generate  from  the  sale  of  the  drug  in  that  country.  Adverse  pricing  limitations  may  hinder  our  ability  to
recoup our investment in one or more drug candidates, even if our drug candidates obtain regulatory approval. For example, according to
a statement, Opinions on Reforming the Review and Approval Process for Pharmaceutical Products and Medical Devices, issued by the
PRC State Council in August 2015, the enterprises applying for new drug approval will be required to undertake that the selling price of
new drug on PRC mainland market will not be higher than the comparable market prices of the product in its country of origin or PRC’s
neighboring markets, as applicable.

Our ability to commercialize any drugs successfully will also depend in part on the extent to which reimbursement for these drugs
and  related  treatments  will  be  available  from  government  health  administration  authorities,  private  health  insurers  and  other
organizations.  Government  authorities  and  third-party  payors,  such  as  private  health  insurers  and  health  maintenance  organizations,
decide which medications they will pay for and establish reimbursement levels. A primary trend in the global healthcare industry is cost
containment. Government authorities and these third-party payors have attempted to control costs by limiting coverage and the amount of
reimbursement for particular medications. Increasingly, third-party payors are requiring that companies provide them with predetermined
discounts  from  list  prices  and  are  challenging  the  prices  charged  for  medical  products.  We  cannot  be  sure  that  reimbursement  will  be
available  for  any  drug  that  we  commercialize  and,  if  reimbursement  is  available,  what  the  level  of  reimbursement  will  be.
Reimbursement may impact the demand for, or the price of, any drug for which we obtain regulatory approval. Obtaining reimbursement
for our drugs may be particularly difficult because of the higher prices often associated with drugs administered under the supervision of
a physician. If reimbursement is not available or is available only to limited levels, we may not be able to successfully commercialize
any drug candidate that we successfully develop.

There may be significant delays in obtaining reimbursement for approved drug candidates, and coverage may be more limited than
the purposes for which the drug candidates are approved by the NMPA, the FDA or other comparable regulatory authorities. Moreover,
eligibility  for  reimbursement  does  not  imply  that  any  drug  will  be  paid  for  in  all  cases  or  at  a  rate  that  covers  our  costs,  including
research, development, manufacture, sale and distribution. Interim payments for new drugs, if applicable, may also not be sufficient to
cover our costs and may not be made permanent. Payment rates may vary according to the use of the drug and the clinical setting in
which  it  is  used,  may  be  based  on  payments  allowed  for  lower  cost  drugs  that  are  already  reimbursed,  and  may  be  incorporated  into
existing payments for other services. Net prices for drugs may be reduced by mandatory discounts or rebates required by government
healthcare programs or private payors and by any future weakening of laws that presently restrict imports of drugs from countries where
they may be sold at lower prices than in the United States. Our inability to promptly obtain coverage and profitable payment rates from
both government-funded and private payors for any future approved drug candidates and any new drugs that we develop could have a
material adverse effect on our business, our operating results, and our overall financial condition.

Current  and  future  legislation  may  increase  the  difficulty  and  cost  for  us  to  obtain  marketing  approval  of  and  commercialize  our
drug candidates and affect the prices we may obtain.

In the United States and certain other jurisdictions, there have been a number of legislative and regulatory changes and proposed
changes regarding the healthcare system that could prevent or delay marketing approval of our drug candidates, restrict post-approval
activities and affect our ability to sell profitably any drug candidates for which we obtain marketing approval.

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The  Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  Health  Care  and  Education  Reconciliation  Act  of  2010,  or
collectively the ACA, became law. The ACA is a sweeping law intended to broaden access to health insurance, reduce or constrain the
growth  of  healthcare  spending,  enhance  remedies  against  fraud  and  abuse,  add  new  transparency  requirements  for  the  healthcare  and
health insurance industries, impose new taxes and fees on the health industry and impose additional health policy reforms. The following
sets forth the major provisions of the ACA that may affect our drug candidates:

● an  annual,  nondeductible  fee  on  any  entity  that  manufactures  or  imports  specified  branded  prescription  drugs  and  biologic

products;

● an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program;

● expansion of healthcare fraud and abuse laws, including the False Claims Act and the Anti-Kickback Statute, new government

investigative powers, and enhanced penalties for noncompliance;

● a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-sale discounts

off negotiated prices;

● extension of manufacturers’ Medicaid rebate liability;

● expansion of eligibility criteria for Medicaid programs;

● expansion of the entities eligible for discounts under the Public Health Service Act’s pharmaceutical pricing program;

● new requirements to report to CMS financial arrangements with physicians and teaching hospitals;

● a new requirement to annually report to the FDA drug samples that manufacturers and distributors provide to physicians; and

● a  new  Patient-Centered  Outcomes  Research  Institute  to  oversee,  identify  priorities  in,  and  conduct  comparative  clinical

effectiveness research, along with funding for such research.

Legislative  and  regulatory  proposals  have  been  made  to  expand  post-approval  requirements  and  restrict  sales  and  promotional
activities for pharmaceutical products. We cannot be sure whether additional legislative changes will be enacted, or whether the FDA
regulations, guidance or interpretations will be changed, or what the impact of such changes on the marketing approvals, if any, of our
drug candidates may be. In addition, increased scrutiny by the U.S. Congress of the FDA’s approval process may significantly delay or
prevent  marketing  approval,  as  well  as  subject  us  to  more  stringent  product  labeling  and  post-marketing  conditions  and  other
requirements.

As we out-license some of our commercialization rights and engage in other forms of collaboration worldwide, including conducting
clinical trials abroad, we may be exposed to specific risks of conducting our business and operations in international markets.

Markets outside of China form an important component of our growth strategy, as we out-license some of our commercialization
rights to third parties outside the PRC and conduct certain of our clinical trials abroad. If we fail to obtain applicable licenses or fail to
enter  into  strategic  collaboration  arrangements  with  third  parties  in  these  markets,  or  if  these  collaboration  arrangements  turn  out
unsuccessful, our revenue-generating growth potential will be adversely affected.

Moreover, international business relationships subject us to additional risks that may materially adversely affect our ability to attain

or sustain profitable operations, including:

● efforts  to  enter  into  collaboration  or  licensing  arrangements  with  third  parties  in  connection  with  our  international  sales,
marketing  and  distribution  efforts  may  increase  our  expenses  or  divert  our  management’s  attention  from  the  acquisition  or
development of drug candidates;

● changes in a specific country’s or region’s political and cultural climate or economic condition;

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● differing regulatory requirements for drug approvals and marketing internationally;

● difficulty of effective enforcement of contractual provisions in local jurisdictions;

● potentially reduced protection for intellectual property rights;

● potential third-party patent rights;

● unexpected changes in tariffs, trade barriers and regulatory requirements;

● economic weakness, including inflation or political instability;

● compliance with tax, employment, immigration and labor laws for employees traveling abroad;

● the effects of applicable non-PRC tax structures and potentially adverse tax consequences;

● currency fluctuations, which could result in increased operating expenses and reduced revenue, and other obligations incidental

to doing business in another country;

● workforce uncertainty and labor unrest;

● the potential for so-called parallel importing, which is what happens when a local seller, faced with high or higher local prices,

opts to import goods from an international market with low or lower prices rather than buying them locally;

● failure of our employees and contracted third parties to comply with Office of Foreign Assets Control rules and regulations and

the Foreign Corrupt Practices Act of the United States, and other applicable rules and regulations;

● production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad; and

● business  interruptions  resulting  from  geo-political  actions,  including  war  and  terrorism,  or  natural  disasters,  including

earthquakes, volcanoes, typhoons, floods, hurricanes and fires.

These and other risks may materially adversely affect our ability to attain or sustain revenue from international markets.

If safety, efficacy, or other issues arise with any medical product that is used in combination with our drug candidates, we may be
unable to market such drug candidate or may experience significant regulatory delays or supply shortages, and our business could be
materially harmed.

We plan to develop certain of our drug candidates for use as a combination therapy. If the NMPA, the FDA or another comparable
regulatory agency revokes its approval of another therapeutic we use in combination with our drug candidates, we will not be able to
market  our  drug  candidates  in  combination  with  such  revoked  therapeutic.  If  safety  or  efficacy  issues  arise  with  these  or  other
therapeutics that we seek to combine with our drug candidates in the future, we may experience significant regulatory delays, and we
may  be  required  to  redesign  or  terminate  the  applicable  clinical  trials.  In  addition,  if  manufacturing  or  other  issues  result  in  a  supply
shortage of any component of our combination drug candidates or if we cannot secure supply of any component of our drug candidates at
commercially  reasonable  or  acceptable  prices,  we  may  not  be  able  to  complete  clinical  development  of  our  drug  candidates  on  our
current timeline or within our current budget, or at all.

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Lack of third-party combination drugs may materially and adversely affect demand for our drugs.

Our drug candidates may be administered in combination with drugs of other pharmaceutical companies as one regimen. In addition,
we often use such third-party drugs in our development and clinical trials as controls for our studies. As a result, both the results of our
clinical trials and the sales of our drugs may be affected by the availability of these third-party drugs. If other pharmaceutical companies
discontinue these combination drugs, regimens that use these combination drugs may no longer be prescribed, and we may not be able to
introduce or find an alternative drug to be used in combination with our drugs at all or in a timely manner and on a cost-effective basis.
As  a  result,  demand  for  our  drugs  may  be  lowered,  which  would  in  turn  materially  and  adversely  affect  our  business  and  results  of
operations.

Risks Related to Our Reliance on Third Parties

As we rely on third parties to conduct our pre-clinical studies and clinical trials, if we lose our relationships with these third parties or
if  they  do  not  successfully  carry  out  their  contractual  duties  or  meet  expected  deadlines,  we  may  not  be  able  to  obtain  regulatory
approval for or commercialize our drug candidates and our business could be substantially harmed.

We have relied on and plan to continue to rely on third-party contract research organization (“CROs”) to monitor and manage data
for  some  of  our  ongoing  pre-clinical  and  clinical  programs.  We  rely  on  these  parties  for  the  execution  of  our  pre-clinical  and  clinical
trials,  and  control  only  certain  aspects  of  their  activities.  Nevertheless,  we  are  responsible  for  ensuring  that  each  of  our  studies  is
conducted in accordance with the applicable protocol and legal, regulatory and scientific standards, and our reliance on the CROs does
not relieve us of our regulatory responsibilities.

We also rely on third parties to assist in conducting our pre-clinical studies in accordance with Good Laboratory Practices (“GLP”).
We and our CROs are required to comply with GCP, GLP and other regulatory regulations and guidelines enforced by the NMPA, the
FDA and comparable foreign regulatory authorities for all of our drug candidates in clinical development. Regulatory authorities enforce
these GCP, GLP or other regulatory requirements through periodic inspections of trial sponsors, investigators and trial sites. If we or any
of our CROs fail to comply with applicable GCP, GLP or other regulatory requirements, the relevant data generated in our clinical trials
may  be  deemed  unreliable  and  the  NMPA,  the  FDA  or  other  comparable  regulatory  authorities  may  require  us  to  perform  additional
clinical  studies  before  approving  our  marketing  applications.  There  can  be  no  assurance  that  upon  inspection  by  a  given  regulatory
authority,  such  regulatory  authority  will  determine  that  any  of  our  clinical  trials  complies  with  GCP  requirements.  In  addition,  our
clinical  trials  must  be  conducted  with  drug  candidates  or  products  produced  under  cGMP  requirements.  Failure  to  comply  with  these
regulations may require us to repeat pre-clinical and clinical trials, which would delay the regulatory approval process.

Our  CROs  have  the  right  to  terminate  their  agreements  with  us  in  the  event  of  an  unrectified  material  breach.  If  any  of  our
relationships with our third-party CROs is terminated, we may not be able to (i) enter into arrangements with alternative CROs or do so
on commercially reasonable terms or (ii) meet our desired clinical development timelines. In addition, there is a natural transition period
when a new CRO commences work, and the new CRO may not provide the same type or level of services as the original provider and
data from our clinical trials may be compromised as a result. There is also a need for relevant technology to be transferred to the new
CRO, which may take time and further delay our development timelines.

Except  for  remedies  available  to  us  under  our  agreements  with  our  CROs,  we  cannot  control  whether  or  not  our  CROs  devote
sufficient time and resources to our ongoing clinical, nonclinical and pre-clinical programs. If our CROs do not successfully carry out
their  contractual  duties  or  obligations  or  meet  expected  deadlines  or  if  the  quality  or  accuracy  of  the  clinical  data  they  obtain  is
compromised due to their failure to adhere to our clinical protocols, regulatory requirements or for other reasons, our clinical trials may
be extended, delayed or terminated and we may not be able to obtain regulatory approval for or successfully commercialize our drug
candidates. As a result, our results of operations and the commercial prospects for our drug candidates would be harmed and our costs
could increase. In turn, our ability to generate revenues could be delayed or compromised.

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Because we rely on third parties, our internal capacity to perform these functions is limited. Outsourcing these functions involves
certain risks that third parties may not perform to our standards, may not produce results in a timely manner or may fail to perform at all.
In addition, the use of third-party service providers requires us to disclose our proprietary information to these third parties, which could
increase  the  risk  that  such  information  will  be  misappropriated.  We  currently  have  a  small  number  of  employees,  which  limits  the
internal resources we could utilize to identify and monitor our third-party service providers. To the extent we are unable to identify and
successfully manage the performance of third-party service providers in the future, our business may be adversely affected. Though we
carefully manage our relationships with our CROs, there can be no assurance that we will not encounter similar challenges or delays in
the future or that these delays or challenges will not have a material adverse impact on our business, financial condition and prospects.

We expect to rely on third parties to manufacture at least a portion of our drug candidate supplies, and we intend to rely on third
parties for at least a portion of the manufacturing process of our drug candidates, if approved. Our business could be harmed if those
third parties fail to provide us with sufficient quantities of product or fail to do so at acceptable quality levels or prices.

Although we plan to secure a facility that we can control for clinical-scale manufacturing and processing of our drug candidates, we
intend  to  also  partially  rely  on  third-party  vendors  to  manufacture  supplies  and  process  our  drug  candidates.  We  have  not  yet
manufactured or processed our drug candidates on a commercial scale and may not be able to do so for any of our drug candidates. We
have limited experience in managing the manufacturing process, and our process may be more difficult or expensive than the approaches
currently in use.

Our anticipated reliance on third-party manufacturers exposes us to certain risks, including, but not limited to, the following:

● we  may  be  unable  to  identify  manufacturers  on  acceptable  terms  or  at  all  because  the  number  of  potential  manufacturers  is
limited and the NMPA, the FDA or other comparable regulatory authorities must approve any manufacturers as part of their
regulatory oversight of our drug candidates. This approval would require new testing and cGMP-compliance inspections by the
NMPA, the FDA or other comparable regulatory authorities. In addition, a new manufacturer would have to be educated in, or
develop substantially equivalent processes for, production of our drugs;

● our contract manufacturers may have little or no experience with manufacturing our drug candidates, and therefore may require
a  significant  amount  of  support  from  us  in  order  to  implement  and  maintain  the  infrastructure  and  processes  required  to
manufacture our drug candidates;

● our  contract  manufacturers  may  have  limited  capacity  or  limited  manufacturing  slots,  which  may  affect  the  timeline  for  the

production of our drugs;

● our  contract  manufacturers  might  be  unable  to  timely  manufacture  our  drug  candidates  or  produce  the  quantity  and  quality

required to meet our clinical and commercial needs, if any;

● contract  manufacturers  may  not  be  able  to  execute  our  manufacturing  procedures  and  other  logistical  support  requirements

appropriately;

● our  future  contract  manufacturers  may  not  perform  as  agreed,  may  not  devote  sufficient  resources  to  our  drugs,  or  may  not
remain in the contract manufacturing business for the time required to supply our clinical trials or to successfully produce, store
and distribute our drugs;

● our contract manufacturers are subject to ongoing periodic unannounced inspections by the NMPA and the FDA to ensure strict
compliance  with  cGMP  and  other  government  regulations  in  the  PRC  and  the  United  States,  respectively,  and  by  other
comparable  regulatory  authorities  for  corresponding  regulatory  requirements.  We  do  not  have  control  over  third-party
manufacturers’ compliance with these regulations and requirements;

● we  may  not  own,  or  may  have  to  share,  the  intellectual  property  rights  to  any  improvements  made  by  our  third-party

manufacturers in the manufacturing process for our drugs;

● our contract manufacturers could breach or terminate their agreements with us;

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● our contract manufacturers may be unable to sustain their business and become bankrupt as a result;

● raw  materials  and  components  used  in  the  manufacturing  process,  particularly  those  for  which  we  have  no  other  source  or

supplier, may not be available or may not be suitable or acceptable for use due to material or component defects;

● products and components from our third-party manufacturers may be subject to additional customs and import charges, which

may cause us to incur delays or additional costs as a result;

● our contract manufacturers and critical reagent suppliers may be subject to inclement weather, as well as natural or man-made

disasters; and

● our contract manufacturers may have unacceptable or inconsistent product quality success rates and yields.

Each of these risks could delay or prevent the completion of our clinical trials or the approval of any of our drug candidates by the
NMPA, the FDA or other comparable regulatory authorities, result in higher costs or adversely impact the commercialization of our drug
candidates.  In  addition,  we  will  rely  on  third  parties  to  perform  certain  specification  tests  on  our  drug  candidates  prior  to  delivery  to
patients. If these tests are not appropriately done and test data is not reliable, patients could be put at risk of serious harm and the NMPA,
the FDA or other comparable regulatory authorities could place significant restrictions on our company until deficiencies are remedied.

The manufacture of biopharmaceutical products is complex and requires significant expertise and capital investment, including the
development  of  advanced  manufacturing  techniques  and  process  controls.  Currently,  our  drug  raw  materials  for  our  manufacturing
activities are supplied by multiple source suppliers. We have agreements for the supply of drug materials with manufacturers or suppliers
that we believe have sufficient capacity to meet our demands. In addition, we believe that adequate alternative sources for such supplies
exist. However, there is a risk that, if supplies are interrupted, our business would be materially harmed.

Manufacturers of biopharmaceutical products often encounter difficulties in production, particularly in scaling up or out, validating
the  production  process,  and  assuring  high  reliability  of  the  manufacturing  process,  including  the  absence  of  contamination.  These
problems include logistics and shipping, difficulties with production costs and yields, quality control, including stability of the product,
product  testing,  operator  error  and  availability  of  qualified  personnel,  as  well  as  compliance  with  strictly  enforced  regulations  in  the
PRC, the United States and other applicable jurisdictions. Further, if contaminants are discovered in the supply of our drug candidates or
in the manufacturing facilities, such manufacturing facilities may need to be closed for an extended period of time for us to investigate
and remedy the contamination. There can be no assurance that any stability failures or other issues relating to the manufacture of our
drug candidates will not occur in the future. Additionally, our contract manufacturers may experience manufacturing difficulties due to
resource constraints or as a result of labor disputes or unstable political environment. If our contract manufacturers were to encounter any
of these difficulties, or otherwise fail to comply with their contractual obligations, our ability to provide our drug candidate to patients in
clinical trials would be jeopardized. Any delay or interruption in the supply of clinical trial supplies could delay the completion of our
clinical trials, increase the costs associated with maintaining clinical trial programs and, depending upon the period of delay, require us to
begin new clinical trials at additional expense or terminate clinical trials completely.

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We  have  entered  into  collaborations  and  may  form  or  seek  collaborations  or  strategic  alliances  or  enter  into  additional  licensing
arrangements in the future, and we may not realize the benefits of such alliances or licensing arrangements.

We may form or seek strategic alliances, create joint ventures or collaborations, or enter into additional licensing arrangements with
third  parties  that  we  believe  will  complement  or  augment  our  development  and  commercialization  efforts  with  respect  to  our  drug
candidates and any future drug candidates that we may develop. Any of these relationships may require us to incur recurring or non-
recurring expenses and other charges, increase our near and long-term expenditures, issue securities that dilute the value of our ADSs, or
disrupt our management and business. For example, we have entered into a license and collaboration agreement with MorphoSys AG
(“MorphoSys”),  pursuant  to  which  we  in-licensed  from  MorphoSys  the  development  and  commercialization  rights  of  felzartamab  in
Greater  China.  Another  example  is  our  collaboration  with  AbbVie  Ireland  Unlimited  Company  (“AbbVie”).  In  September  2020,  we
granted AbbVie a global license, excluding mainland China, Hong Kong and Macau, to develop and commercialize lemzoparlimab (as
well  as  certain  other  compounds  directed  against  CD47),  and  we  retain  all  rights  to  develop  and  commercialize  lemzoparlimab  in
mainland  China,  Hong  Kong  and  Macau.  On  August  15,  2022,  we  and  AbbVie  Global  Enterprises  Ltd.  (as  an  assignee  of  AbbVie)
entered into an amendment to the original licensing and collaboration agreement (as amended, the “AbbVie Collaboration Agreement”).
The  parties  are  collaborating  on  the  global  development  of  anti-CD47  antibody  therapy  under  the  AbbVie  Collaboration  Agreement.
AbbVie discontinued the global Phase 1b study of lemzoparlimab combination therapy with AZA and venetoclax, in patients with MDS
and AML and a Phase 1b study of lemzoparlimab in patients with relapsed/refractory multiple myeloma. These discontinuations were not
related to any specific or unexpected safety concerns. This change led to a lowered probability of achieving a key milestone that was
included in the consideration of revenue recognition in prior years. We recorded a reduction in the revenue of approximately US$48.0
million  in  the  second  half  of  2022.  For  a  more  detailed  discussion,  please  see  “Item  4.  Information  on  the  Company—B.  Business
Overview—Licensing and Collaboration Arrangements—B. Out-Licensing Arrangements—License and Collaboration Agreement with
AbbVie” and “Item 5. Operating and Financial Review and Prospects.”

In addition, we face significant competition in seeking appropriate strategic partners and the negotiation process is time-consuming
and complex. Moreover, we may not be successful in our efforts to establish a strategic partnership or other alternative arrangements for
our drug candidates because they may be deemed to be at too early a stage of development for collaborative effort and third parties may
not view our drug candidates as having the requisite potential to demonstrate safety and efficacy. If and when we collaborate with a third
party for the development and commercialization of a drug candidate, we can expect to relinquish some or all of the control over the
future success of that drug candidate to the third party.

Further,  collaborations  involving  our  drug  candidates  are  subject  to  specific  risks,  which  include,  but  are  not  limited  to,  the

following:

● collaborators have significant discretion in determining the efforts and resources that they will apply to a collaboration;

● collaborators may not pursue the development and commercialization of our drug candidates or may elect not to continue or
renew the development or commercialization programs based on clinical trial results, change in their strategic focus due to the
acquisition of competitive drugs, availability of funding, or other external factors, such as a business combination that diverts
resources or creates competing priorities;

● collaborators  may  delay  clinical  trials,  provide  insufficient  funding  for  a  clinical  trial,  discontinue  a  clinical  trial,  repeat  or

conduct new clinical trials, or require a new formulation of a drug candidate for clinical testing;

● collaborators could independently develop, or develop with third parties, drugs that compete directly or indirectly with our drug

candidates or future drugs;

● collaborators  with  marketing  and  distribution  rights  to  one  or  more  of  our  drug  candidates  or  future  drugs  may  not  commit

sufficient resources to their marketing and distribution;

● collaborators  may  not  properly  maintain  or  defend  our  intellectual  property  rights  or  may  use  our  intellectual  property  or
proprietary  information  in  a  way  that  gives  rise  to  actual  or  threatened  litigation  that  could  jeopardize  or  invalidate  our
intellectual property or proprietary information or expose us to potential liability;

● collaborators may not always be cooperative or responsive in providing their services in a clinical trial;

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● disputes  may  arise  between  us  and  a  collaborator  that  cause  a  delay  or  termination  of  the  research,  development  or
commercialization of our drug candidates, or that result in costly litigation or arbitration that diverts management attention and
resources;

● collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further development or

commercialization of the applicable drug candidates; and

● collaborators  may  own  or  co-own  intellectual  property  covering  our  drug  candidates  or  future  drugs  that  results  from  our
collaborating with them, and in such cases, we would not have the exclusive right to commercialize such intellectual property.

As a result, if we enter into collaboration agreements and strategic partnerships or license our drugs, we may not be able to realize
the  benefit  of  such  transactions  if  we  are  unable  to  address  the  risks  mentioned  above  and  successfully  integrate  these  agreements  or
partnerships  with  our  existing  operations  and  company  culture,  which  could  delay  our  timelines  or  otherwise  adversely  affect  our
business.  For  example,  disputes  have  arisen  between  Tracon  Pharmaceuticals,  Inc.  (“Tracon”)  and  us  in  relation  to  the  collaboration
agreements  to  co-develop  our  proprietary  CD73  antibody,  TJD5  (the  “TJD5  Agreement”)  and  to  co-develop  up  to  five  bispecific
antibodies  (the  “BsAbs  Agreement”).  The  disputes  relating  to  the  TJD5  Agreement  and  the  BsAbs  Agreement  were  presented  to  a
binding arbitration proceeding under the Rules of Arbitration of the International Chamber of Commerce before an arbitration tribunal.
On April 25, 2023, the arbitration award determined that the TJD5 Agreement has been terminated for a pre-agreed termination fee of
US$9.0 million plus interest payable pursuant to the original agreement, and therefore Tracon has no rights to share any future economics
with I-Mab. The arbitration award completely denied Tracon’s damages claim of over US$200 million for any breach and awarded no
damages to Tracon. The tribunal also confirmed the termination of the BsAb Agreement. Based on the arbitration award, I-Mab will bear
a portion of Tracon’s legal fees and costs, totaling approximately US$13.5 million. See “Item 8. Financial Information—A. Consolidated
Statements and Other Financial Information—Legal Proceedings” for details. We cannot assure you that similar disputes will not occur
again and we cannot assure you that no lawsuits will be initiated by other companies in the future. Also, these legal proceedings may be
expensive,  time-consuming  and  disruptive  to  our  operations  and  divert  our  management’s  attention.  We  cannot  predict  the  possible
outcome  of  the  legal  proceedings  of  such  nature  in  the  future  and  there  can  also  be  no  assurance  that  we  will  prevail  in  those  legal
proceedings.

Neither can we be certain that, following a strategic transaction or license, we will be able to achieve the revenue or specific net
income that justifies such transaction. If we are unable to reach agreements with suitable collaborators on a timely basis, on acceptable
terms, or at all, we may have to curtail the development of a drug candidate, reduce or delay its development program or one or more of
our  other  development  programs,  delay  its  potential  commercialization  or  reduce  the  scope  of  any  sales  or  marketing  activities,  or
increase  our  expenditures  and  undertake  development  or  commercialization  activities  at  our  own  expense.  If  we  elect  to  fund  and
undertake development or commercialization activities on our own, we may need to obtain additional expertise and additional capital,
which may not be available to us on acceptable terms or at all. If we fail to enter into collaborations and do not have sufficient funds or
expertise  to  undertake  the  necessary  development  and  commercialization  activities,  we  may  not  be  able  to  further  develop  our  drug
candidates or bring them to market and generate product sales revenue, which would harm our business, financial condition, results of
operations and prospects.

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Risks Related to Our Intellectual Property

If we are unable to obtain and maintain patent and other intellectual property protection for our drug candidates, or if the scope of
such  intellectual  property  rights  obtained  is  not  sufficiently  broad,  third  parties  could  develop  and  commercialize  products  and
technologies similar or identical to ours and compete directly against us, and our ability to successfully commercialize any product or
technology may be adversely affected.

Our  success  depends  in  large  part  on  our  ability  to  protect  our  proprietary  technology  and  drug  candidates  from  competition  by
obtaining, maintaining, defending and enforcing our intellectual property rights, including patent rights. As of December 31, 2022, our
owned patent portfolio consisted of 113 issued patents and 185 patent applications primarily in connection with the drug candidates in
our Global Portfolio, including 19 Patent Cooperation Treaty (“PCT”) patent applications, 21 U.S. patent applications, 30 PRC patent
applications and 228 patent applications in other jurisdictions. In addition, as of December 31, 2022, we in-licensed the Greater China
and  Korea  rights  relating  to  35  issued  patents  and  26  pending  patent  applications  primarily  in  connection  with  felzartamab,
eftansomatropin alfa, efineptakin alfa and TJ210. We seek to protect the drug candidates and technology that we consider commercially
important  by  filing  patent  applications  in  China,  the  United  States  and  other  countries  or  regions,  relying  on  trade  secrets  or
pharmaceutical regulatory protection or employing a combination of these methods. This process is expensive and time-consuming, and
we or our licensors may not be able to file and prosecute all necessary or desirable patent applications in all jurisdictions at a reasonable
cost  or  in  a  timely  manner.  It  is  also  possible  that  we  or  our  licensors  will  fail  to  identify  patentable  aspects  of  our  research  and
development output before it is too late to obtain patent protection.

The  patent  position  of  biotechnology  and  pharmaceutical  companies  generally  is  highly  uncertain,  involves  complex  legal  and
factual questions and has in recent years been the subject of much litigation. As a result, the issuance, scope, validity, enforceability and
commercial value of our patent rights are highly uncertain. Our pending and future patent applications may not result in patents being
issued  which  protect  our  technology  or  drug  candidates  or  which  effectively  prevent  others  from  commercializing  competitive
technologies and drug candidates. The patent examination process may require us or our licensors to narrow the scope of the claims of
our or our licensors’ pending and future patent applications, which may limit the scope of patent protection that may be obtained. We
cannot assure that all of the potentially relevant prior art relating to our patents and patent applications has been found. If such prior art
exists, it can invalidate a patent or prevent a patent application from being issued as a patent.

Even if patents do issue on any of these applications, there can be no assurance that a third party will not challenge their validity,
enforceability,  or  scope,  which  may  result  in  the  patent  claims  being  narrowed  or  invalidated,  or  that  we  will  obtain  sufficient  claim
scope  in  those  patents  to  prevent  a  third  party  from  competing  successfully  with  our  drug  candidates.  We  may  become  involved  in
interference,  inter  partes  review,  post  grant  review,  ex  parte  reexamination,  derivation,  opposition  or  similar  other  proceedings
challenging our patent rights or the patent rights of others. An adverse determination in any such proceeding could reduce the scope of,
or invalidate, our patent rights, allow third parties to commercialize our technology or drug candidates and compete directly with us, or
result  in  our  inability  to  manufacture  or  commercialize  drug  candidates  without  infringing  third-party  patent  rights.  Thus,  even  if  our
patent  applications  issue  as  patents,  they  may  not  issue  in  a  form  that  will  provide  us  with  any  meaningful  protection,  prevent
competitors from competing with us or otherwise provide us with any competitive advantage.

Our  competitors  may  be  able  to  circumvent  our  patents  by  developing  similar  or  alternative  technologies  or  drug  candidates  in  a
non-infringing manner. The issuance of a patent is not conclusive as to its scope, validity or enforceability, and our owned and licensed
patents may be challenged in the courts or patent offices in the United States and other countries. Such challenges may result in patent
claims being narrowed, invalidated or held unenforceable, which could limit our ability to stop or prevent us from stopping others from
using  or  commercializing  similar  or  identical  technology  and  drug  candidates,  or  limit  the  duration  of  the  patent  protection  of  our
technology  and  drug  candidates.  Given  the  amount  of  time  required  for  the  development,  testing  and  regulatory  review  of  new  drug
candidates,  patents  protecting  such  assets  might  expire  before  or  shortly  after  such  assets  are  commercialized.  As  a  result,  our  patent
portfolio may not provide us with sufficient rights to exclude others from commercializing drug candidates similar or identical to ours.

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Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value
of our patents or narrow the scope of our patent protection. Under the America Invents Act (“AIA”) enacted in 2011, the United States
moved to this first-to-file system in early 2013 from the previous system under which the first to make the claimed invention was entitled
to  the  patent.  Assuming  the  other  requirements  for  patentability  are  met,  the  first  to  file  a  patent  application  is  entitled  to  the  patent.
Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States
and other jurisdictions are typically not published until 18 months after filing, or in some cases not at all. Therefore, we cannot be certain
that we were the first to make the inventions claimed in our patents or pending patent applications, or that we were the first to file for
patent protection of such inventions.

We enjoy only limited geographical protection with respect to certain patents and may not be able to protect our intellectual property
rights throughout the world, including in the PRC.

Filing and prosecuting patent applications and defending patents covering our drug candidates in all countries throughout the world
could be prohibitively expensive. Competitors may use our and our licensors’ technologies in jurisdictions where we have not obtained
patent  protection  to  develop  their  own  drug  candidates  and,  further,  may  export  otherwise  infringing  drug  candidates  to  territories,
including  the  PRC,  where  we  and  our  licensors  have  patent  protection,  but  enforcement  rights  are  not  as  strong  as  that  in  the  United
States or Europe. These drug candidates may compete with our drug candidates, and our and our licensors’ patents or other intellectual
property rights may not be effective or sufficient to prevent them from competing.

The  laws  of  some  jurisdictions,  including  the  PRC,  do  not  protect  intellectual  property  rights  to  the  same  extent  as  the  laws  or
rules and regulations in the United States and Europe, and many companies have encountered significant difficulties in protecting and
defending such rights in such jurisdictions. The legal systems of certain countries, particularly certain developing countries, do not favor
the  enforcement  of  patents,  trade  secrets  and  other  intellectual  property  protection,  which  could  make  it  difficult  for  us  to  stop  the
infringement of our patents or marketing of competing drug candidates in violation of our proprietary rights generally. Proceedings to
enforce  our  patent  rights  in  other  jurisdictions,  whether  or  not  successful,  could  result  in  substantial  costs  and  divert  our  efforts  and
attention  from  other  aspects  of  our  business,  could  put  our  patents  at  risk  of  being  invalidated  or  interpreted  narrowly  and  our  patent
applications  at  risk  of  not  issuing  as  patents,  and  could  provoke  third  parties  to  assert  claims  against  us.  We  may  not  prevail  in  any
lawsuits  that  we  initiate  and  the  damages  or  other  remedies  awarded,  if  any,  may  not  be  commercially  meaningful.  Accordingly,  our
efforts to enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from
the  intellectual  property  that  we  develop  or  license.  Furthermore,  while  we  intend  to  protect  our  intellectual  property  rights  in  our
expected significant markets, we cannot ensure that we will be able to initiate or maintain similar efforts in all jurisdictions in which we
may  wish  to  market  our  drug  candidates.  Accordingly,  our  efforts  to  protect  our  intellectual  property  rights  in  such  countries  may  be
inadequate, which may have an adverse effect on our ability to successfully commercialize our drug candidates in all of our expected
significant  foreign  markets.  If  we  or  our  licensors  encounter  difficulties  in  protecting,  or  are  otherwise  precluded  from  effectively
protecting, the intellectual property rights important for our business in such jurisdictions, the value of these rights may be diminished
and we may face additional competition from others in those jurisdictions.

Some countries also have compulsory licensing laws under which a patent owner may be compelled to grant licenses to third parties.
In addition, some countries limit the enforceability of patents against government agencies or government contractors. In those countries,
the patent owner may have limited remedies, which could materially diminish the value of such patents. If we or any of our licensors is
forced to grant a license to third parties with respect to any patents relevant to our business, our competitive position may be impaired.

Obtaining  and  maintaining  our  patent  protection  depends  on  compliance  with  various  procedural,  document  submission,  fee
payment, and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated
for non-compliance with these requirements.

Periodic maintenance and annuity fees on any issued patent are due to be paid to the United States Patent and Trademark Office
(“USPTO”) and foreign patent agencies over the lifetime of a patent. In addition, the USPTO and other foreign patent agencies require
compliance with a number of procedural, documentary, fee payment, and other similar provisions during the patent application process.
While an inadvertent failure to make payment of such fees or to comply with such provisions can in many cases be cured by payment of
a late fee or by other means in accordance with the applicable rules, there are situations in which such non-compliance will result in the
abandonment or lapse of the patent or patent application, and the partial or complete loss of patent rights in the relevant jurisdiction.

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Non-compliance  events  that  could  result  in  abandonment  or  lapse  of  a  patent  or  patent  application  include  failure  to  respond  to
official  actions  within  prescribed  time  limits,  and  non-payment  of  fees  and  failure  to  properly  legalize  and  submit  formal  documents
within prescribed time limits. If we or our licensors fail to maintain the patents and patent applications covering our drug candidates or if
we or our licensors otherwise allow our patents or patent applications to be abandoned or lapse, our competitors might be able to enter
the market, which would hurt our competitive position and could impair our ability to successfully commercialize our drug candidates in
any indication for which they are approved.

Our  owned  and  in-licensed  patents  and  other  intellectual  property  may  be  subject  to  further  priority  disputes  or  to  inventorship
disputes and similar proceedings. If we or our licensors are unsuccessful in any of these proceedings, we may be required to obtain
licenses  from  third  parties,  which  may  not  be  available  on  commercially  reasonable  terms  or  at  all,  or  to  modify  or  cease  the
development,  manufacture  and  commercialization  of  one  or  more  of  the  drug  candidates  we  may  develop,  which  could  have  a
material adverse impact on our business.

We  or  our  licensors  may  be  subject  to  claims  that  former  employees,  collaborators  or  other  third  parties  have  an  interest  in  our
owned or in-licensed patents or other intellectual property as an inventor or co-inventor. If we or our licensors are unsuccessful in any
interference proceedings or other priority or validity disputes (including any patent oppositions) to which we or they are subject, we may
lose  valuable  intellectual  property  rights  through  the  loss  of  one  or  more  patents  owned  or  licensed  or  our  owned  or  licensed  patent
claims  may  be  narrowed,  invalidated,  or  held  unenforceable.  In  addition,  if  we  or  our  licensors  are  unsuccessful  in  any  inventorship
disputes  to  which  we  or  they  are  subject,  we  may  lose  valuable  intellectual  property  rights,  such  as  exclusive  ownership  of,  or  the
exclusive right to use, our owned or in-licensed patents. If we or our licensors are unsuccessful in any interference proceeding or other
priority or inventorship dispute, we may be required to obtain and maintain licenses from third parties, including parties involved in any
such interference proceedings or other priority or inventorship disputes. Such licenses may not be available on commercially reasonable
terms  or  at  all,  or  may  be  non-exclusive.  If  we  are  unable  to  obtain  and  maintain  such  licenses,  we  may  need  to  modify  or  cease  the
development, manufacture, and commercialization of one or more of our drug candidates. The loss of exclusivity or the narrowing of our
owned and licensed patent claims could limit our ability to stop others from using or commercializing similar or identical drug products.
Any of the foregoing could result in a material adverse effect on our business, financial condition, results of operations, or prospects.
Even if we are successful in an interference proceeding or other similar priority or inventorship disputes, it could result in substantial
costs and be a distraction to our management and other employees.

Claims that our drug candidates or the sale or use of our future products infringe, misappropriate or otherwise violate the patents or
other  intellectual  property  rights  of  third  parties  could  result  in  costly  litigation  or  could  require  substantial  time  and  money  to
resolve, even if litigation is avoided.

We cannot guarantee that our drug candidates or the sale or use of our future products do not and will not in the future infringe,
misappropriate  or  otherwise  violate  third-party  patents  or  other  intellectual  property  rights.  Third  parties  might  allege  that  we  are
infringing  their  patent  rights  or  that  we  have  misappropriated  their  trade  secrets,  or  that  we  are  otherwise  violating  their  intellectual
property rights, whether with respect to the manner in which we have conducted our research, or with respect to the use or manufacture
of  the  compounds  we  have  developed  or  are  developing.  Litigation  relating  to  patents  and  other  intellectual  property  rights  in  the
biopharmaceutical and pharmaceutical industries is common, including patent infringement lawsuits. The various markets in which we
plan to operate are subject to frequent and extensive litigation regarding patents and other intellectual property rights. Some claimants
may have substantially greater resources than we have and may be able to sustain the costs of complex intellectual property litigation to a
greater degree and for longer periods of time than we could. Third parties might resort to litigation against us or other parties we have
agreed  to  indemnify,  which  litigation  could  be  based  on  either  existing  intellectual  property  or  intellectual  property  that  arises  in  the
future. For example, we are aware of a third-party U.S. patent and its counterpart European patents that relate to the use of antibodies
having specificity to PD-L1 to treat cancer.

It is also possible that we failed to identify, or may in the future fail to identify, relevant patents or patent applications held by third
parties that cover our drug candidates. Publication of discoveries in the scientific or patent literature often lags behind actual discoveries.
Therefore, we cannot be certain that we were the first to invent, or the first to file patent applications on, our drug candidates or for their
uses, or that our drug candidates will not infringe patents that are currently issued or that are issued in the future. In the event that a third
party  has  also  filed  a  patent  application  covering  one  of  our  drug  candidates  or  a  similar  invention,  our  patent  application  may  be
regarded  as  a  competing  application  and  may  not  be  approved  in  the  end.  Additionally,  pending  patent  applications  that  have  been
published can, subject to certain limitations, be later amended in a manner that could cover our products or their use.

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If a third party were to assert claims of patent infringement against us, even if we believe such third-party claims are without merit, a
court of competent jurisdiction could hold that these third-party patents are valid, enforceable and infringed, and the holders of any such
patents  may  be  able  to  block  our  ability  to  commercialize  the  applicable  product  unless  we  obtained  a  license  under  the  applicable
patents, or until such patents expire or are finally determined to be invalid or unenforceable. Similarly, if any third-party patents were
held by a court of competent jurisdiction to cover aspects of our compositions, formulations, or methods of treatment, prevention, or use,
the holders of any such patents may be able to block our ability to develop and commercialize the applicable product unless we obtained
a license or until such patent expires or is finally determined to be invalid or unenforceable. In addition, defending such claims would
cause  us  to  incur  substantial  expenses  and  could  cause  us  to  pay  substantial  damages,  if  we  are  found  to  be  infringing  a  third  party’s
patent  rights.  These  damages  potentially  include  increased  damages  and  attorneys’  fees  if  we  are  found  to  have  infringed  such  rights
willfully. In order to avoid or settle potential claims with respect to any patent or other intellectual property rights of third parties, we
may choose or be required to seek a license from a third party and be required to pay license fees or royalties or both, which could be
substantial. These licenses may not be available on acceptable terms, or at all. Even if we were able to obtain a license, the rights may be
nonexclusive, which could result in our competitors gaining access to the same intellectual property. Ultimately, we could be prevented
from commercializing a drug candidate, or be forced, by court order or otherwise, to modify or cease some or all aspects of our business
operations,  if,  as  a  result  of  actual  or  threatened  patent  or  other  intellectual  property  claims,  we  are  unable  to  enter  into  licenses  on
acceptable  terms.  Further,  we  could  be  found  liable  for  significant  monetary  damages  as  a  result  of  claims  of  intellectual  property
infringement.

Defending against claims of patent infringement, misappropriation of trade secrets or other violations of intellectual property rights
could be costly and time-consuming, regardless of the outcome. Furthermore, because of the substantial amount of discovery required in
connection  with  intellectual  property  litigation,  there  is  a  risk  that  some  of  our  confidential  information  could  be  compromised  by
disclosure during this type of litigation. Thus, even if we were to ultimately prevail, or to settle at an early stage, such litigation could
burden us with substantial unanticipated costs.

Issued patents covering one or more of our drug candidates could be found invalid or unenforceable if challenged in court.

Despite measures we take to obtain and maintain patent and other intellectual property rights with respect to our drug candidates, our
intellectual property rights could be challenged or invalidated. For example, if we were to initiate legal proceedings against a third party
to enforce a patent covering one of our drug candidates, the defendant could counterclaim that our patent is invalid and/or unenforceable.
Grounds for a validity challenge could be an alleged failure to meet any of several statutory requirements, for example, lack of novelty,
obviousness  or  non-enablement.  Grounds  for  an  unenforceability  assertion  could  be  an  allegation  that  someone  connected  with
prosecution  of  the  patent  withheld  relevant  information  from  the  USPTO,  CNIPA,  or  the  applicable  foreign  counterpart,  or  made  a
misleading statement, during prosecution. Although we believe that we have conducted our patent prosecution in accordance with a duty
of  candor  and  in  good  faith,  the  outcome  following  legal  assertions  of  invalidity  and  unenforceability  during  patent  litigation  is
unpredictable. If a defendant were to prevail on a legal assertion of invalidity and/or unenforceability, we would lose at least part, and
perhaps all, of the patent protection on a drug candidate. Even if a defendant does not prevail on a legal assertion of invalidity and/or
unenforceability,  our  patent  claims  may  be  construed  in  a  manner  that  would  limit  our  ability  to  enforce  such  claims  against  the
defendant  and  others.  Even  if  we  establish  infringement,  the  court  may  decide  not  to  grant  an  injunction  against  further  infringing
activity  and  instead  award  only  monetary  damages,  which  may  not  be  an  adequate  remedy.  In  addition,  if  the  breadth  or  strength  of
protection  provided  by  our  patents  is  threatened,  it  could  dissuade  companies  from  collaborating  with  us  to  license,  develop,  or
commercialize our current or future drug candidates. Any loss of patent protection could have a material adverse impact on one or more
of our drug candidates and our business.

Enforcing our intellectual property rights against third parties may also cause such third parties to file other counterclaims against us,
which could be costly to defend and could require us to pay substantial damages, cease the sale of certain drugs or enter into a license
agreement and pay royalties (which may not be possible on commercially reasonable terms or at all).

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Intellectual property litigation may lead to unfavorable publicity which may harm our reputation and cause the market price of our
ADSs to decline, and any unfavorable outcome from such litigation could limit our research and development activities and/or our
ability to commercialize our drug candidates.

During the course of any intellectual property litigation, there could be public announcements of the results of hearings, rulings on
motions, and other interim proceedings in the litigation. If securities analysts or investors regard these announcements as negative, the
perceived  value  of  our  drug  candidates,  future  drugs,  programs  or  intellectual  property  could  be  diminished.  Accordingly,  the  market
price of our ADSs may decline. Such announcements could also harm our reputation or the market for our drug candidates, which could
have a material adverse effect on our business.

In the event of intellectual property litigation, there can be no assurance that we would prevail, even if the case against us is weak or
flawed. If third parties successfully assert their intellectual property rights against us, prohibitions against using certain technologies, or
prohibitions against commercializing our drug candidates, could be imposed by a court or by a settlement agreement between us and a
plaintiff.  In  addition,  if  we  are  unsuccessful  in  defending  against  allegations  that  we  have  infringed,  misappropriated  or  otherwise
violated the patent or other intellectual property rights of others, we may be forced to pay substantial damage awards to the plaintiff.
Additionally,  we  may  be  required  to  obtain  a  license  from  the  intellectual  property  owner  in  order  to  continue  our  research  and
development programs or to commercialize any resulting product. It is possible that the necessary license will not be available to us on
commercially acceptable terms, or at all. This may not be technically or commercially feasible, may render our products less competitive,
or  may  delay  or  prevent  the  launch  of  our  products  to  the  market.  Any  of  the  foregoing  could  limit  our  research  and  development
activities, our ability to commercialize one or more drug candidates, or both.

Most  of  our  competitors  are  larger  than  we  are  and  have  substantially  greater  resources.  They  are,  therefore,  likely  to  be  able  to
sustain the costs of complex intellectual property litigation longer than we could. In addition, the uncertainties associated with litigation
could  have  a  material  adverse  effect  on  our  ability  to  raise  the  funds  necessary  to  conduct  our  clinical  trials,  continue  our  internal
research  programs,  in-license  needed  technology,  or  enter  into  strategic  partnerships  that  would  help  us  bring  our  drug  candidates  to
market.

In  addition,  any  future  intellectual  property  litigation,  interference  or  other  administrative  proceedings  will  result  in  additional
expense and distraction of our personnel. An adverse outcome in such litigation or proceedings may expose us or any future strategic
partners to loss of our proprietary position, expose us to significant liabilities, or require us to seek licenses that may not be available on
commercially acceptable terms, if at all, each of which could have a material adverse effect on our business.

Changes in patent law could diminish the value of patents in general, thereby impairing our ability to protect our drug candidates.

As is the case with other biopharmaceutical companies, our success is heavily dependent on intellectual property, particularly patent
rights.  Obtaining  and  enforcing  patents  in  the  biopharmaceutical  industry  involves  both  technological  and  legal  complexity,  and  is
therefore costly, time-consuming, and inherently uncertain. In addition, the United States has recently enacted and is implementing wide-
ranging patent reform legislation. Recent U.S. Supreme Court rulings have narrowed the scope of patent protection available in certain
circumstances  and  weakened  the  rights  of  patent  owners  in  certain  situations.  In  addition  to  increasing  uncertainty  with  regard  to  our
ability  to  obtain  patents  in  the  future,  this  combination  of  events  has  created  uncertainty  with  respect  to  the  value  of  patents  once
obtained, if any. Depending on decisions by the U.S. Congress, the federal courts and the USPTO, the laws and regulations governing
patents could change in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing patents and
patents that we might obtain in the future. For example, in a recent case, Assoc. for Molecular Pathology v. Myriad Genetics, Inc., the
U.S. Supreme Court held that certain claims to naturally-occurring substances are not patentable. Although we do not believe that our
currently issued patents and any patents that may issue from our pending patent applications directed to our drug candidates if issued in
their currently pending forms, as well as patent rights licensed by us, will be found invalid based on this decision, we cannot predict how
future  decisions  by  the  courts,  the  U.S.  Congress  or  the  USPTO  may  impact  the  value  of  our  patent  rights.  There  could  be  similar
changes in the laws of foreign jurisdictions that may impact the value of our patent rights or our other intellectual property rights.

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If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed. We also
may be subject to claims that our employees, consultants, or advisers have wrongfully used or disclosed alleged trade secrets of their
former employers or claims asserting ownership of what we regard as our own intellectual property.

In  addition  to  our  issued  patents  and  pending  patent  applications,  we  rely  on  trade  secret  and  confidential  information,  including
unpatented  know-how,  technology  and  other  proprietary  information,  to  maintain  our  competitive  position  and  to  protect  our  drug
candidates. We seek to protect this trade secret and confidential information, in part, by entering into non-disclosure and confidentiality
agreements  with  parties  that  have  access  to  them,  such  as  our  employees,  corporate  collaborators,  outside  scientific  collaborators,
sponsored  researchers,  contract  manufacturers,  consultants,  advisers  and  other  third  parties.  We  also  enter  into  confidentiality  and
invention  or  patent  assignment  agreements  with  our  employees  and  consultants.  However,  any  of  these  parties  may  breach  such
agreements  and  disclose  our  proprietary  information,  and  we  may  not  be  able  to  obtain  adequate  remedies  for  such  breaches.  For
example,  due  to  Tracon’s  wrong-doing  during  the  confidential  arbitration  process,  we  are  pursuing  a  trade  secret  misappropriation
lawsuit  case  against  a  competitor  of  us  and  seeking  remedies,  including  potentially  substantial  monetary  damages.  Regardless  of  the
outcome, litigations or arbitrations can have an adverse impact on us because of defense and settlement costs, diversion of management
resources and other factors. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret can be difficult, expensive
and  time-consuming,  and  the  outcome  is  unpredictable.  If  any  of  our  trade  secrets  were  to  be  lawfully  obtained  or  independently
developed by a competitor or other third party, we would have no right to prevent them from using that technology or information to
compete with us and our competitive position would be harmed.

Furthermore,  many  of  our  employees,  consultants,  and  advisers,  including  our  senior  management,  were  previously  employed  at
other  biotechnology  or  pharmaceutical  companies,  including  our  competitors  or  potential  competitors.  Some  of  these  employees,
consultants,  and  advisers,  including  members  of  our  senior  management,  executed  proprietary  rights,  non-disclosure  and  non-
competition  agreements  in  connection  with  such  previous  employment.  Although  we  try  to  ensure  that  our  employees  do  not  use  the
proprietary information or know-how of others in their work for us, we may be subject to claims that we or these employees have used or
disclosed intellectual property, including trade secrets or other proprietary information, of any such individual’s former employer. We are
not aware of any threatened or pending claims related to these matters or concerning the agreements with our senior management, but in
the  future  litigation  may  be  necessary  to  defend  against  such  claims.  If  we  fail  in  defending  any  such  claims,  in  addition  to  paying
monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such
claims,  litigation  could  result  in  substantial  costs  and  be  a  distraction  to  management.  In  addition,  while  we  typically  require  our
employees, consultants and contractors who may be involved in the development of intellectual property to execute agreements assigning
such intellectual property to us, we may be unsuccessful in executing such an agreement with each party who in fact develops intellectual
property  that  we  regard  as  our  own,  and  furthermore,  the  assignment  of  intellectual  property  rights  may  not  be  self-executing,  or  the
assignment agreements may be breached, each of which may result in claims by or against us related to the ownership of such intellectual
property.  If  we  fail  in  prosecuting  or  defending  any  such  claims,  in  addition  to  paying  monetary  damages,  we  may  lose  valuable
intellectual  property  rights.  Even  if  we  are  successful  in  prosecuting  or  defending  against  such  claims,  litigation  could  result  in
substantial  costs,  be  a  distraction  to  our  management  and  scientific  personnel  and  have  a  material  adverse  effect  on  our  business,
financial condition, results of operations and prospects.

We  may  not  be  successful  in  obtaining  or  maintaining  necessary  rights  for  our  development  pipeline  through  acquisitions  and  in-
licenses.

Because our programs may involve additional drug candidates that may require the use of proprietary rights held by third parties, the
growth of our business may depend in part on our ability to acquire and maintain licenses or other rights to use these proprietary rights.
We may be unable to acquire or in-license any compositions, methods of use, or other intellectual property rights from third parties that
we  identify.  The  licensing  and  acquisition  of  third-party  intellectual  property  rights  is  a  competitive  area,  and  a  number  of  more
established  companies  are  also  pursuing  strategies  to  license  or  acquire  third-party  intellectual  property  rights  that  we  may  consider
attractive  or  necessary.  These  established  companies  may  have  a  competitive  advantage  over  us  due  to  their  size,  cash  resources  and
greater  clinical  development  and  commercialization  capabilities.  In  addition,  companies  that  perceive  us  to  be  a  competitor  may  be
unwilling to assign or license rights to us. We also may be unable to license or acquire third-party intellectual property rights on terms
that would allow us to make an appropriate return on our investment or at all. If we are unable to successfully obtain rights to required
third-party  intellectual  property  rights  or  maintain  the  existing  intellectual  property  rights  we  have,  we  may  have  to  abandon
development of the relevant program or drug candidate, which could have a material adverse effect on our business, financial condition,
results of operations and prospects for growth.

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Our rights to develop and commercialize our drug candidates are subject, in part, to the terms and conditions of licenses granted to us
by others.

We rely on licenses to certain patent rights and other intellectual property from third parties that are important or necessary to the
development of our drug candidates. These and other licenses may not provide exclusive rights to use such intellectual property in all
relevant fields of use and in all territories in which we may wish to develop or commercialize our drug products. As a result, we may not
be  able  to  prevent  competitors  from  developing  and  commercializing  competitive  drug  products  in  territories  included  in  all  of  our
licenses.

We  may  not  have  the  right  to  control  the  preparation,  filing,  prosecution,  maintenance,  enforcement,  and  defense  of  patents  and
patent applications covering the drug candidates that we license from third parties. Moreover, we have not had and do not have primary
control over these activities for certain of our patents or patent applications and other intellectual property rights that we jointly own with
certain of our licensors and sub-licensors. Therefore, we cannot be certain that these patents and patent applications will be prepared,
filed, prosecuted, maintained, enforced, and defended in a manner consistent with the best interests of our business. If our licensors fail
to prosecute, maintain, enforce and defend such patents, or lose rights to those patents or patent applications, the rights we have licensed
may be reduced or eliminated, and our right to develop and commercialize any of our drugs that are subject of such licensed rights could
be adversely affected.

Pursuant to the terms of the license agreements with some of our licensors, the licensors may have the right to control enforcement
of our licensed patents or defense of any claims asserting the invalidity or unenforceability of these patents. Even if we are permitted to
pursue  the  enforcement  or  defense  of  our  licensed  patents,  we  will  require  the  cooperation  of  our  licensors  and  any  applicable  patent
owners  and  such  cooperation  may  not  be  provided  to  us.  We  cannot  be  certain  that  our  licensors  will  allocate  sufficient  resources  or
prioritize their or our enforcement of such patents or defense of such claims to protect our interests in the licensed patents. Even if we are
not a party to these legal actions, an adverse outcome could harm our business because it might prevent us from continuing to license
intellectual property that we may need to operate our business. If we lose any of our licensed intellectual property, our right to develop
and commercialize any of our drug candidates that are subject of such licensed rights could be adversely affected.

In  addition,  our  licensors  may  have  relied  on  third-party  consultants  or  collaborators  or  on  funds  from  third  parties  such  that  our
licensors are not the sole and exclusive owners of the patents we in-license. This could have a material adverse effect on our competitive
position, business, financial conditions, results of operations, and prospects.

In  spite  of  our  best  efforts,  our  licensors  might  conclude  that  we  have  materially  breached  our  license  agreements  and  might
therefore terminate the license agreements, thereby removing our ability to develop and commercialize drug products covered by these
license  agreements.  If  such  licenses  are  terminated,  we  may  be  required  seek  alternative  in-license  arrangements,  which  may  not  be
available on commercially reasonable terms or at all, or may be non-exclusive. If these in-licenses are terminated, or if the underlying
patents fail to provide the intended exclusivity, we may need to modify or cease the development, manufacture, and commercialization of
one  or  more  of  our  drug  candidates  and  competitors  would  have  the  freedom  to  seek  regulatory  approval  of,  and  to  market,  products
identical  to  ours.  In  addition,  we  may  seek  to  obtain  additional  licenses  from  our  licensors  and,  in  connection  with  obtaining  such
licenses, we may agree to amend our existing licenses in a manner that may be more favorable to the licensors, including by agreeing to
terms that could enable third parties (potentially including our competitors) to receive licenses to a portion of the intellectual property
that is subject to our existing licenses. Any of these events could have a material adverse effect on our competitive position, business,
financial conditions, results of operations, and prospects.

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If we fail to comply with our obligations in the agreements under which we license intellectual property rights from third parties or
otherwise experience disruptions to our business relationships with our licensors, we could be required to pay monetary damages or
could lose license rights that are important to our business.

Our business relies, in large part, on our ability to develop and commercialize drug candidates we have licensed from third parties,
and  we  have  entered  into  license  agreements  with  third  parties  providing  us  with  rights  to  various  third-party  intellectual  property,
including rights in patents and patent applications. Our licenses may not encumber all intellectual property rights owned or controlled by
the  affiliates  of  our  licensors  and  relevant  to  our  drug  candidates,  and  we  may  need  to  obtain  additional  licenses  from  our  existing
licensors and others to advance our research or allow commercialization of drug candidates we may develop. In such case, we may need
to obtain additional licenses which may not be available on an exclusive basis, on commercially reasonable terms or at a reasonable cost,
if at all. In that event, we may be required to expend significant time and resources to redesign our drug candidates or the methods for
manufacturing  them  or  to  develop  or  license  replacement  technology,  all  of  which  may  not  be  feasible  on  a  technical  or  commercial
basis.  If  we  are  unable  to  do  so,  we  may  be  unable  to  develop  or  commercialize  the  affected  drug  candidates,  which  could  harm  our
business, financial condition, results of operations, and prospects significantly.

In addition, if our licensors breach the license agreements, we may not be able to enforce such agreements against our licensors’
parent  entity  or  affiliates.  Under  each  of  our  license  and  intellectual  property-related  agreements,  in  exchange  for  licensing  or
sublicensing us the right to develop and commercialize the applicable drug candidates, our licensors will be eligible to receive from us
milestone  payments,  tiered  royalties  from  commercial  sales  of  such  drug  candidates,  assuming  relevant  approvals  from  government
authorities are obtained, or other payments. Our license and intellectual property-related agreements also require us to comply with other
obligations including development and diligence obligations, providing certain information regarding our activities with respect to such
drug candidates and/or maintaining the confidentiality of information we receive from our licensors.

If we fail to comply with our obligations under our current or future license agreements, our counterparties may have the right to
terminate  these  agreements  and,  upon  the  effective  date  of  such  termination,  have  the  right  to  re-obtain  the  licensed  and  sub-licensed
technology and intellectual property. If any of our licensors terminate any of our licenses, we might not be able to develop, manufacture
or market any drug or drug candidate that is covered by the licenses provided for under these agreements and other third parties may be
able to market drug candidates similar or identical to ours. In such case, we may have to negotiate new or reinstated agreements with less
favorable terms, and may be required to provide a grant back license to the licensors under our own intellectual property with respect to
the  terminated  products.  We  may  also  face  claims  for  monetary  damages  or  other  penalties  under  these  agreements.  While  we  would
expect to exercise all rights and remedies available to us, including seeking to cure any breach by us, and otherwise seek to preserve our
rights  under  the  intellectual  property  rights  licensed  and  sublicensed  to  us,  we  may  not  be  able  to  do  so  in  a  timely  manner,  at  an
acceptable  cost  or  at  all.  In  particular,  some  of  the  milestone  payments  are  payable  upon  our  drug  candidates  reaching  development
milestones before we have commercialized, or received any revenue from, sales of such drug candidate, and we cannot guarantee that we
will have sufficient resources to make such milestone payments. Any uncured, material breach under the license agreements could result
in our loss of exclusive rights and may lead to a complete termination of our rights to the applicable drug candidate. Any of the foregoing
could have a material adverse effect on our business, financial conditions, results of operations, and prospects.

It is possible that we may be unable to obtain any additional licenses at a reasonable cost or on reasonable terms, if at all. Certain of
our license agreements also require us to meet development thresholds to maintain the license, including establishing a set timeline for
developing and commercializing products. Disputes may arise regarding intellectual property subject to a license agreement, including:

● the scope of rights granted under the license agreement and other interpretation-related issues;

● the extent to which our technology and processes infringe, misappropriate or violate intellectual property of the licensor that is

not subject to the license agreement;

● the sublicensing of patent and other rights under our collaborative development relationships;

● our diligence obligations under the license agreement and what activities satisfy those diligence obligations;

● the inventorship and ownership of inventions and know-how resulting from the joint creation or use of intellectual property by

our licensors and us and our partners; and

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● the priority of invention of patented technology.

In addition, the agreements under which we license intellectual property or technology from third parties are complex, and certain
provisions in such agreements may be susceptible to multiple interpretations. The resolution of any contract interpretation disagreement
that may arise could narrow what we believe to be the scope of our rights to the relevant intellectual property or technology, or increase
what  we  believe  to  be  our  financial  or  other  obligations  under  the  relevant  agreement,  either  of  which  could  have  a  material  adverse
effect on our business, financial condition, results of operations, and prospects. Moreover, if disputes over intellectual property that we
have licensed prevent or impair our ability to maintain our current licensing arrangements on commercially acceptable terms, we may be
unable  to  successfully  develop  and  commercialize  the  affected  drug  candidates,  which  could  have  a  material  adverse  effect  on  our
business, financial condition, results of operations and prospects.

Intellectual property rights do not necessarily protect us from all potential threats to our competitive advantage.

The  degree  of  future  protection  afforded  by  our  intellectual  property  rights  is  uncertain  because  intellectual  property  rights  have
limitations, and may not adequately protect our business, or permit us to maintain our competitive advantage. The following examples
are illustrative:

● others may be able to make compounds that are similar to our drug candidates but that are not covered by the claims of the

patents that we own or have exclusively licensed;

● we might not have been the first to make the inventions covered by the issued patents or pending patent applications that we
own or may in the future exclusively license, which could result in the patents applied for not being issued or being invalidated
after issuing;

● we might not have been the first to file patent applications covering certain of our inventions, which could result in the patents

applied for not being issued or being invalidated after issuing;

● others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing

our intellectual property rights;

● it is possible that our pending patent applications will not lead to issued patents;

● issued patents that we own or have exclusively licensed may not provide us with any competitive advantages, or may be held

invalid or unenforceable, as a result of legal challenges by our competitors or other third parties;

● we  may  obtain  patents  for  certain  compounds  many  years  before  we  receive  regulatory  approval  for  drugs  containing  such
compounds, and because patents have a limited life, which may begin to run prior to the commercial sale of the related drugs,
the commercial value of our patents may be limited;

● our competitors might conduct research and development activities in countries where we do not have patent rights and then use

the information learned from such activities to develop competitive drugs for commercialization in our major markets;

● we may fail to develop additional proprietary technologies that are patentable;

● we may fail to apply for or obtain adequate intellectual property protection in all the jurisdictions in which we operate;

● third parties may gain unauthorized access to our intellectual property due to potential lapses in our information systems; and

● the patents of others may have an adverse effect on our business, for example by preventing us from commercializing one or

more of our drug candidates for one or more indications.

Any  of  the  aforementioned  threats  to  our  competitive  advantage  could  have  a  material  adverse  effect  on  our  business  and  future

prospects.

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If our trademarks and trade names are not adequately protected, we may not be able to build name recognition in our markets of
interest and our competitive position may be adversely affected.

We  own  registered  trademarks.  We  may  not  be  able  to  obtain  trademark  protection  in  territories  that  we  consider  of  significant
importance to us. In addition, any of our trademarks or trade names, whether registered or unregistered, may be challenged, opposed,
infringed, cancelled, circumvented or declared generic, or determined to be infringing on other marks, as applicable. We may not be able
to protect our rights to these trademarks and trade names, which we will need to build name recognition by potential collaborators or
customers in our markets of interest. Over the long term, if we are unable to establish name recognition based on our trademarks and
trade names, we may not be able to compete effectively and our business may be adversely affected.

Terms of our future patents may not be sufficient to effectively protect our drug candidates and business.

In many countries where we file applications for patents, the term of an issued patent is generally 20 years from the earliest claimed
filing date of a non-provisional patent application in the applicable country. Although various extensions may be available, the life of a
patent  and  the  protection  it  affords  are  limited.  Even  if  we  obtain  patents  covering  our  drug  candidates,  we  may  still  be  open  to
competition from other companies, as well as generic medications once the patent life has expired for a drug.

Although  patent  regulations  in  respect  of  patent  term  compensation  and  patent  linkage  system  have  been  introduced  by  the  PRC
Patent  Law  taking  effective  on  June  1,  2021,  the  patent  term  compensation  requires  further  promulgation  of  detailed  implementation
measures to be implemented. Thus, patents that we expect to obtain in China may not be eligible for or only be eligible for limited patent
term  compensation.  In  the  meantime,  the  PRC  Patent  Law,  for  the  first  time,  introduces  a  system  for  the  early  resolution  of  patent
disputes concerning generic drug applications. On July 4, 2021, the NMPA and the CNIPA jointly issued the Implementation Measures
for Early Resolution Mechanism of Pharmaceutical Patent Disputes (for Trial Implementation) which sets forth, for the first time, details
of how such patent linkage system would be implemented. Since the China trial version of patent linkage system was just implemented
commencing  from  July  4,  2021,  substantial  uncertainties  remain  as  to  whether  this  trial  system  can  effectively  block  early  generic
competition with our products. Although the Regulations for Implementation of the Drug Administration Law of the People’s Republic
of China has provided six-year data exclusivity for a new chemical entity, and the Chinese regulators have proposed a framework for
integrating  data  exclusivity  into  the  Chinese  regulatory  regime  in  2018,  the  system  of  data  exclusivity  was  not  really  implemented  in
practice. Consequently, these factors may result in weaker protection for us against generic competition in China than could be available
to us in some jurisdictions such as the United States.

If  we  are  unable  to  obtain  patent  term  extensions  or  if  such  extensions  are  less  than  requested  for,  our  competitors  may  obtain
approval  of  competing  products  following  our  patent  expirations  and  our  business,  financial  condition,  results  of  operations  and
prospects could be materially harmed as a result.

If we do not obtain additional protection under the Hatch-Waxman Amendments and similar legislation in other countries extending
the terms of our patents, if issued, relating to our drug candidates, our business may be materially harmed.

Depending upon the timing, duration and specifics of FDA regulatory approval for our drug candidates, one or more of our U.S.
patents, if issued, may be eligible for limited patent term restoration under the Drug Price Competition and Patent Term Restoration Act
of 1984 (the “Hatch-Waxman Amendments”). The Hatch-Waxman Amendments permit a patent term extension of up to five years as
compensation for patent term lost during drug development and the FDA regulatory review process. Patent term extensions, however,
cannot extend the remaining term of a patent beyond a total of 14 years from the date of drug approval by the FDA, and only one patent
can be extended for a particular drug.

The application for patent term extension is subject to approval by the USPTO, in conjunction with the FDA. We may not be granted
an extension because of, for example, failing to apply within applicable deadlines, failing to apply prior to expiration of relevant patents
or otherwise failing to satisfy applicable requirements. Moreover, the applicable time period or the scope of patent protection afforded
could be less than we request. If we are unable to obtain a patent term extension for a given patent or the term of any such extension is
less than we request, the period during which we will have the right to exclusively market our drug will be shortened and our competitors
may obtain earlier approval of competing drugs, and our ability to generate revenues could be materially adversely affected.

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Risks Related to Our Industry, Business and Operations

Our future success depends on our ability to attract, retain and motivate senior management and qualified scientific employees.

We are highly dependent on the expertise of the members of our research and development team, as well as the principal members of
our  management.  We  have  entered  into  employment  agreements  with  our  executive  officers,  but  each  of  them  may  terminate  their
employment  with  us  at  any  time  with  prior  written  notice.  In  addition,  we  currently  do  not  have  “key-man”  insurance  for  any  of  our
executive officers or other key personnel.

Recruiting,  retaining  and  motivating  qualified  management,  scientific,  clinical,  manufacturing  and  sales  and  marketing  personnel
will  also  be  critical  to  our  success.  The  loss  of  the  services  of  our  executive  officers  or  other  key  employees  could  impede  the
achievement of our research, development and commercialization objectives and seriously harm our ability to successfully implement
our business strategy. Further, replacing executive officers and key employees may be difficult and may take an extended period of time
because of the limited number of individuals in our industry with the breadth of skills and experience required to successfully develop,
gain regulatory approval of and commercialize drugs. Competition to hire from this limited pool is intense, and we may be unable to hire,
train, retain or motivate these key personnel on acceptable terms given the competition among numerous biopharmaceutical companies
for similar personnel. We also experience competition for the hiring of scientific and clinical personnel from universities and research
institutions. In addition, our management will be required to devote significant time to new compliance initiatives from our status as a
public company, which may require us to recruit more management personnel.

We will need to increase the size and capabilities of our organization, and we may experience difficulties in managing our growth.

We  expect  to  experience  significant  growth  in  the  number  of  our  employees  and  consultants  and  the  scope  of  our  operations,
particularly in the areas of clinical development, regulatory affairs and business development. To manage our anticipated future growth,
we  must  continue  to  implement  and  improve  our  managerial,  operational  and  financial  systems,  expand  our  facilities  and  continue  to
recruit  and  train  additional  qualified  personnel.  Due  to  our  limited  financial  resources,  we  may  not  be  able  to  effectively  manage  the
expansion of our operations or recruit and train additional qualified personnel. The expansion of our operations may lead to significant
costs and may divert our management and business development resources. Any inability to manage growth could delay the execution of
our business plans or disrupt our operations, and have a material adverse effect on our business.

The data and information that we gather in our research and development process could be inaccurate or incomplete, which could
harm our business, reputation, financial condition and results of operations.

We  collect,  aggregate,  process,  and  analyze  data  and  information  from  our  pre-clinical  studies,  manufacturing  technology
development  programs  and  clinical  programs.  We  also  engage  in  substantial  information  gathering  following  the  identification  of  a
promising drug candidate. Because data in the healthcare industry is fragmented in origin, inconsistent in format, and often incomplete,
the  overall  quality  of  data  collected  or  accessed  in  the  healthcare  industry  is  often  subject  to  challenge,  the  degree  or  amount  of  data
which is knowingly or unknowingly absent or omitted can be material, and we often discover data issues and errors when monitoring and
auditing  the  quality  of  our  data.  If  we  make  mistakes  in  the  capture,  input,  or  analysis  of  these  data,  our  ability  to  advance  the
development of our drug candidates may be materially harmed and our business, prospects and reputation may suffer.

We also engage in the procurement of regulatory approvals necessary for the development and commercialization of our products
under development, for which we manage and submit data to governmental entities. These processes and submissions are governed by
complex  data  processing  and  validation  policies  and  regulations.  Notwithstanding  such  policies  and  regulations,  interim,  top-line  or
preliminary  data  from  our  clinical  trials  that  we  announce  or  publish  from  time  to  time  may  change  as  more  patient  data  become
available and are subject to audit and verification procedures that could result in material changes in the final data, in which case we may
be  exposed  to  liability  to  a  customer,  court  or  government  agency  that  concludes  that  our  storage,  handling,  submission,  delivery,  or
display of health information or other data was wrongful or erroneous.

Although we maintain insurance coverage for clinical trials, this coverage may prove to be inadequate or could cease to be available
to  us  on  acceptable  terms,  if  at  all.  Even  unsuccessful  claims  could  result  in  substantial  costs  and  diversion  of  management  time,
attention, and resources. A claim brought against us that is uninsured or under-insured could harm our business, financial condition and
results of operations.

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In addition, we rely on CROs, our partners and other third parties to monitor and manage data for some of our ongoing pre-clinical
and clinical programs and control only certain aspects of their activities. If any of our CROs, our partners or other third parties do not
perform to our standards in terms of data accuracy or completeness, data from those pre-clinical and clinical trials may be compromised
as a result, and our reliance on these parties does not relieve us of our regulatory responsibilities. For a detailed discussion, see “—Risks
Related to Our Reliance on Third Parties—As we rely on third parties to conduct our pre-clinical studies and clinical trials, if we lose our
relationships with these third parties or if they do not successfully carry out their contractual duties or meet expected deadlines, we may
not  be  able  to  obtain  regulatory  approval  for  or  commercialize  our  drug  candidates  and  our  business  could  be  substantially  harmed.”
above.

We may be subject to liability lawsuits arising from our clinical trials.

We  currently  carry  liability  insurance  covering  our  clinical  trials.  Although  we  maintain  such  insurance,  any  claim  that  may  be
brought against us could result in a court judgment or settlement in an amount that is not covered, in whole or in part, by our insurance or
which is in excess of the limits of our insurance coverage. Our insurance policies also contain various exclusions, and we may be subject
to  particular  liability  claims  for  which  we  have  no  coverage.  We  will  have  to  pay  any  amount  awarded  by  a  court  or  negotiated  in  a
settlement  that  exceed  our  coverage  limitations  or  that  are  not  covered  by  our  insurance,  and  we  may  not  have,  or  be  able  to  obtain,
sufficient  capital  to  pay  such  amounts.  In  addition,  if  we  cannot  successfully  defend  ourselves  against  such  claims,  we  may  incur
substantial liabilities and be required to suspend or delay our ongoing clinical trials. Even a successful defense would require significant
financial and management resources.

Regardless of the merits or eventual outcome, liability claims may result in significant negative consequences to our business and

prospects, including, but not limited to:

● decreased demand for our drug candidates or any resulting products;

● injury to our reputation;

● withdrawal of other clinical trial participants;

● costs to defend the related litigation;

● a diversion of our management’s time and resources;

● substantial monetary awards to trial participants or patients;

● inability to commercialize our drug candidates; and

● a decline in the market price of our ADSs.

We have limited insurance coverage, and any claims beyond our insurance coverage may result in our incurring substantial costs and
a diversion of resources.

We maintain insurance policies that are required under PRC laws and regulations as well as insurance based on our assessment of
our operational needs and industry practice. We also maintain liability insurance covering our clinical trials. In line with industry practice
in the PRC, we have elected not to maintain certain types of insurances, such as business interruption insurance or key-man insurance.
Our insurance coverage may be insufficient to cover any claim for product liability, damage to our fixed assets or employee injuries. Any
liability or damage to, or caused by, our facilities or our personnel beyond our insurance coverage may result in our incurring substantial
costs and a diversion of resources.

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Disruptions in the financial markets and economic conditions could affect our ability to raise capital.

Global economies could suffer dramatic downturns as the result of a deterioration in the credit markets and related financial crisis as
well  as  a  variety  of  other  factors  including,  extreme  volatility  in  security  prices,  severely  diminished  liquidity  and  credit  availability,
ratings downgrades of certain investments and declining valuations of others. In the past, governments have taken unprecedented actions
in an attempt to address and rectify these extreme market and economic conditions by providing liquidity and stability to the financial
markets. If these actions are not successful, the return of adverse economic conditions may cause a significant impact on our ability to
raise capital, if needed, on a timely basis and on acceptable terms or at all.

In addition, there is considerable uncertainty over the long-term effects of the expansionary monetary and fiscal policies adopted by
the central banks and financial authorities of some of the world’s leading economies, including the United States and China. There have
been concerns over unrest and terrorist threats in the Middle East, Europe and Africa and over the conflicts involving Ukraine, Syria and
North Korea. There have also been concerns on the relationship among China and other Asian countries, which may result in or intensify
potential  conflicts  in  relation  to  territorial  disputes  or  the  trade  related  disputes  between  the  United  States  and  China.  In  addition,  the
impact  of  the  decision  by  the  United  Kingdom  to  withdraw  from  the  European  Union,  commonly  referred  to  as  “Brexit,”  and  the
resulting  effect  on  the  political  and  economic  future  of  the  U.K.  and  the  European  Union  is  uncertain.  Brexit  could  adversely  affect
European and worldwide economic and market conditions and could contribute to instability in global financial and foreign exchange
markets. It is unclear whether these challenges and uncertainties will be contained or resolved, and what effects they may have on the
global political and economic conditions in the long term. It is unclear whether these challenges and uncertainties will be contained or
resolved, and what effects they may have on the global political and economic conditions in the long term.

Our employees, independent contractors, consultants, commercial partners and vendors may engage in misconduct or other improper
activities, including non-compliance with regulatory standards and requirements.

We are exposed to the risk of fraud, misconduct or other illegal activities by our employees, independent contractors, consultants,

commercial partners and vendors. Misconduct by these parties could include intentional, reckless and negligent conduct that fails to:

● comply with the laws of the NMPA, the FDA and other comparable regulatory authorities;

● provide true, complete and accurate information to the NMPA, the FDA and other comparable regulatory authorities;

● comply with manufacturing standards we have established;

● comply with healthcare fraud and abuse laws in the PRC, the United States and similar fraudulent misconduct laws in other

applicable jurisdictions; or

● report financial information or data accurately or to disclose unauthorized activities to us.

If we obtain approval of any of our drug candidates and begin commercializing those drugs in the PRC, the United States or other
applicable jurisdictions, our potential exposure under the laws of such jurisdictions will increase significantly and our costs associated
with  compliance  with  such  laws  are  also  likely  to  increase.  These  laws  may  impact,  among  other  things,  our  current  activities  with
principal  investigators  and  research  patients,  as  well  as  future  sales,  marketing  and  education  programs.  In  particular,  the  promotion,
sales and marketing of healthcare items and services, as well as certain business arrangements in the healthcare industry, are subject to
extensive laws designed to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or
prohibit  a  wide  range  of  pricing,  discounting,  marketing  and  promotion,  structuring  and  commission(s),  certain  customer  incentive
programs  and  other  business  arrangements  generally.  Activities  subject  to  these  laws  also  involve  the  improper  use  of  information
obtained in the course of patient recruitment for clinical trials, which could result in regulatory sanctions and cause serious harm to our
reputation.

It is not always possible to identify and deter misconduct by employees and other parties, and the precautions we take to detect and
prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental
investigations  or  other  actions  or  lawsuits  stemming  from  a  failure  to  comply  with  these  laws  or  regulations.  If  any  such  actions  are
instituted  against  us,  and  we  are  not  successful  in  defending  ourselves  or  asserting  our  rights,  those  actions  could  have  a  significant
impact on our business, including the imposition of significant fines or other sanctions.

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If  we  engage  in  future  acquisitions  or  strategic  partnerships,  this  may  increase  our  capital  requirements,  dilute  the  value  of  your
investment in our ADSs, cause us to incur debt or assume contingent liabilities, and subject us to other risks.

We  may  evaluate  various  acquisitions  and  strategic  partnerships,  including  licensing  or  acquiring  complementary  products,
intellectual  property  rights,  technologies  or  businesses.  Any  potential  acquisition  or  strategic  partnership  may  entail  numerous  risks,
including, but not limited to:

● increased operating expenses and cash requirements;

● the assumption of additional indebtedness or contingent liabilities;

● the issuance of our equity securities;

● assimilation  of  operations,  intellectual  property  and  products  of  an  acquired  company,  including  difficulties  associated  with

integrating new personnel;

● the  diversion  of  our  management’s  attention  from  our  existing  product  programs  and  initiatives  in  pursuing  such  a  strategic

merger or acquisition;

● retention of key employees, the loss of key personnel, and uncertainties in our ability to maintain key business relationships;

● risks and uncertainties associated with the assimilation of operations, corporate culture and personnel of the acquired business;

● risks and uncertainties associated with the other party to such a transaction, including the prospects of that party and its existing

drugs or drug candidates and regulatory approvals;

● our inability to generate revenue from acquired technology and/or products sufficient to meet our objectives in undertaking the

acquisition or even to offset the associated acquisition and maintenance costs; and

● changes in accounting principles relating to recognition and measurement of our investments that may have a significant impact

on our financial results.

In addition, if we undertake acquisitions, we may issue dilutive securities, assume or incur debt obligations, incur large one-time
expenses  and  acquire  intangible  assets  that  could  result  in  significant  future  amortization  expense.  Moreover,  we  may  not  be  able  to
locate suitable acquisition opportunities and this inability could impair our ability to grow or obtain access to technology or products that
may be important to the development of our business.

If  we  fail  to  comply  with  applicable  anti-bribery  laws,  our  reputation  may  be  harmed  and  we  could  be  subject  to  penalties  and
significant expenses that have a material adverse effect on our business, financial condition and results of operations.

We are subject to anti-bribery laws in China that generally prohibit companies and their intermediaries from making payments to
government officials for the purpose of obtaining or retaining business or securing any other improper advantage. In addition, although
currently  our  primary  operating  business  is  in  China,  we  are  subject  to  the  Foreign  Corrupt  Practices  Act  (the  “FCPA”).  The  FCPA
generally prohibits us from making improper payments to non-U.S. officials for the purpose of obtaining or retaining business. Although
we have policies and procedures designed to ensure that we, our employees and our agents comply with anti-bribery laws, there is no
assurance  that  such  policies  or  procedures  will  prevent  our  agents,  employees  and  intermediaries  from  engaging  in  bribery  activities.
Failure  to  comply  with  anti-bribery  laws  could  disrupt  our  business  and  lead  to  severe  criminal  and  civil  penalties,  including
imprisonment, criminal and civil fines, loss of our export licenses, suspension of our ability to do business with the government, denial of
government  reimbursement  for  our  products  and/or  exclusion  from  participation  in  government  healthcare  programs.  Other  remedial
measures could include further changes or enhancements to our procedures, policies, and controls and potential personnel changes and/or
disciplinary  actions,  any  of  which  could  have  a  material  adverse  effect  on  our  business,  financial  condition,  results  of  operations  and
liquidity. We could also be adversely affected by any allegation that we violated such laws.

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Any  failure  to  comply  with  applicable  regulations  and  industry  standards  or  obtain  various  licenses  and  permits  could  harm  our
reputation and our business, results of operations and prospects.

A number of governmental agencies or industry regulatory bodies in the PRC, the United States and other applicable jurisdictions
impose strict rules, regulations and industry standards governing biopharmaceutical research and development activities, which apply to
us.  Our  or  our  CROs’  failure  to  comply  with  such  regulations  could  result  in  the  termination  of  ongoing  research,  administrative
penalties  imposed  by  regulatory  bodies  or  the  disqualification  of  data  for  submission  to  regulatory  authorities.  This  could  harm  our
business, reputation, prospects for future work and results of operations. For example, if we or our CROs were to treat research animals
inhumanely or in violation of international standards set out by the Association for Assessment and Accreditation of Laboratory Animal
Care, it could revoke any such accreditation and the accuracy of our animal research data could be questioned.

If we or our CROs or other contractors or consultants fail to comply with environmental, health and safety laws and regulations, we
could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business.

We and third parties, such as our CROs or other contractors or consultants, are subject to numerous environmental, health and safety
laws  and  regulations,  including  those  governing  laboratory  procedures  and  the  handling,  use,  storage,  treatment  and  disposal  of
hazardous  materials  and  wastes.  Our  operations  involve  the  use  of  hazardous  and  flammable  materials,  including  chemicals  and
radioactive and biological materials. Our operations also produce hazardous waste products. We generally contract with third parties for
the disposal of these materials and wastes. We cannot eliminate the risk of contamination or injury from these materials. In the event of
contamination  or  injury  resulting  from  our  use  of  hazardous  materials,  we  could  be  held  liable  for  any  resulting  damages,  and  any
liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties.

Although  we  maintain  workers’  compensation  insurance  to  cover  us  for  costs  and  expenses  we  may  incur  due  to  injuries  to  our
employees  resulting  from  the  use  of  or  exposure  to  hazardous  materials,  this  insurance  may  not  provide  adequate  coverage  against
potential  liabilities.  We  do  not  maintain  insurance  for  environmental  liability  or  toxic  tort  claims  that  may  be  asserted  against  us  in
connection with our storage, use or disposal of biological, hazardous or radioactive materials.

In addition, we may be required to incur substantial costs to comply with current or future environmental, health and safety laws and
regulations. These current or future laws and regulations may impair our research, development or production efforts. Failure to comply
with these laws and regulations also may result in substantial fines, penalties or other sanctions.

If we face allegations of non-compliance with laws and encounter sanctions, our reputation, revenues and liquidity may suffer, and
our drug candidates and future drugs could be subject to restrictions or withdrawal from the market.

Any government investigation of alleged violations of laws could require us to expend significant time and resources in response,
and  could  generate  negative  publicity.  Any  failure  to  comply  with  ongoing  regulatory  requirements  may  significantly  and  adversely
affect our ability to commercialize and generate revenues from our drugs. If regulatory sanctions are applied or if regulatory approval is
withdrawn,  the  value  of  our  company  and  our  operating  results  will  be  adversely  affected.  Additionally,  if  we  are  unable  to  generate
revenues  from  our  product  sales,  our  potential  for  achieving  profitability  will  be  diminished  and  the  capital  necessary  to  fund  our
operations will be increased.

Our internal computer systems, or those used by our CROs or other contractors or consultants, may fail or suffer security breaches.

Although to our knowledge we have not experienced any material system failure or security breach to date, if such an event were to
occur and cause interruptions in our operations, it could result in a material disruption of our development programs and our business
operations.  For  example,  the  loss  of  clinical  trial  data  from  completed  or  future  clinical  trials  could  result  in  delays  in  our  regulatory
approval  efforts  and  significantly  increase  our  costs  to  recover  or  reproduce  the  data.  Likewise,  we  partially  rely  on  our  third-party
research institution collaborators for research and development of our drug candidates and other third parties for the manufacture of our
drug candidates and to conduct clinical trials, and similar events relating to their computer systems could also have a material adverse
effect on our business.

To the extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate
disclosure of confidential or proprietary information, we could incur liability and the further development and commercialization of our
drug candidates could be delayed.

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Any  failure  to  comply  with  the  various  applicable  laws  and  regulations  related  to  data  security,  cybersecurity  and  personal
information and privacy protection could affect our offshore offerings and lead to liabilities, penalties or other regulatory actions,
which could have a material and adverse effect on our business, financial condition and results of operations.

The  regulatory  framework  for  the  collection,  use,  safeguarding,  sharing,  transfer  and  other  processing  of  personal  information
worldwide  is  rapidly  evolving  and  is  likely  to  remain  uncertain  for  the  foreseeable  future.  Regulatory  authorities  in  virtually  every
jurisdiction  in  which  we  operate  have  implemented  and  are  considering  a  number  of  legislative  and  regulatory  proposals  concerning
personal data protection.

In China, regulatory authorities have implemented and are considering a number of legislative and regulatory proposals concerning
data protection. For example, China’s Cyber Security Law, which became effective in June 2017, created China’s first national-level data
protection  for  “network  operators,”  which  may  include  all  organizations  in  China  that  provide  services  over  the  internet  or  another
information network. Numerous regulations, guidelines and other measures are expected to be adopted under the umbrella of the Cyber
Security Law. In addition, certain industry-specific laws and regulations affect the collection and transfer of personal data in China. For
example, the PRC State Council promulgated Regulations on the Administration of Human Genetic Resources (effective in July 2019),
which  require  approval  from  the  Science  and  Technology  Administration  Department  of  the  State  Council  where  human  genetic
resources, or HGR, are involved in any international collaborative project and additional approval for any export or cross-border transfer
of the HGR samples or associated data. It is possible that these laws may be interpreted and applied in a manner that is inconsistent with
our practices, potentially resulting in confiscation of HGR samples and associated data, administrative fines and criminal liabilities. In
addition, the interpretation and application of data protection laws in China and elsewhere are often uncertain and in flux.

On June 10, 2021, the Standing Committee of the National People’s Congress promulgated the PRC Data Security Law, which came
into  effect  on  September  1,  2021.  The  Data  Security  Law,  among  other  things,  provides  for  a  security  review  procedure  for  the  data
activities that may affect national security. In addition, the Civil Code of the PRC (“the Civil Code”), which came into effect on January
1, 2021, expressly provides the right of privacy and personal information protection. The PRC Cyber Security Law, the Data Security
Law and Civil Code are relatively new and subject to interpretation by the regulators. Although we only gain access to user information
that is necessary for, and relevant to, the businesses conducted, the data we obtain and use may include information that is deemed as
“personal information” or “important data” under the PRC Cyber Security Law, the Civil Code and related data privacy and protection
laws and regulations.

On August 20, 2021, the Standing Committee of the National People’s Congress promulgated the Personal Information Protection
Law, which came into effect on November 1, 2021. The Personal Information Protection Law requires, among others, that the processing
of  personal  information  should  have  a  specific  and  reasonable  purpose,  and  must  be  conducted  in  a  way  that  has  the  least  impact  on
personal rights and interests, and should be limited to the minimum scope necessary to achieve the processing purpose. On November 4,
2022, the CAC and the SAMR jointly issued the Notification on the Implementation of Personal Information Protection Certification,
which  implemented  the  personal  information  protection  certification  mechanism  in  response  to  the  requirements  under  the  Personal
Information Protection Law regarding the outbound transfer of personal information.

The Data Security Management Measures (Draft for Comments) was published by the CAC for public comments on November 14,
2021, which proposed that a data processor shall apply for a cybersecurity review under any of the following circumstances: (i) merger,
reorganization,  or  division  of  internet  platform  operators  with  significant  data  resources  concerning  national  security,  economic
development or public interest that affects or may affect national security; (ii) a data processor processing personal information of more
than  one  million  users  while  listing  on  foreign  stock  markets;  (iii)  a  data  processor  listing  in  Hong  Kong  that  affects  or  may  affect
national  security;  or  (iv)  other  data  processing  activities  that  affect  or  may  affect  national  security.  The  Data  Security  Management
Measures  (Draft  for  Comments)  further  required  the  data  processors  processing  important  data  or  listing  on  foreign  stock  markets  to
carry out annual data security self-assessment and submit an evaluation report to the CAC. However, as the Data Security Management
Measures (Draft for Comments) was released only for public comment, there are still uncertainties regarding the final version and the
effective date thereof.

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In December 2021, the CAC and several other authorities jointly promulgated the revised Cybersecurity Review Measures, which
came  into  effect  in  February  2022.  Pursuant  to  the  Cybersecurity  Review  Measures,  where  the  relevant  activity  affects  or  may  affect
national security, a critical information infrastructure operator, or a CIIO, that purchases network products and services, or an internet
platform  operator  that  conducts  data  processing  activities,  shall  be  subject  to  the  cybersecurity  review.  In  addition,  internet  platform
operators processing personal information of more than one million users seeking to be listed on foreign stock markets must apply for a
cybersecurity review. As of the date of this annual report, (i) no detailed rules or implementation relating to the Cybersecurity Review
Measures has been issued by any PRC regulatory authorities, (ii) we have not been informed of being identified as a CIIO or an internet
platform operator, nor have we been required to go through the cybersecurity review procedures, by any PRC governmental authorities,
and  (iii)  we  have  not  been  involved  in  any  investigations  on  cybersecurity  review  on  such  basis,  nor  have  we  received  any  inquiry,
notice, warning, or sanctions in such respect, by any PRC governmental authorities. Taking into consideration the above and that (i) the
preclinical and clinical data processed or handled by us in our business operations, either by its nature or in scale, do not and will not
directly or indirectly affect or potentially affect national security in any respect, and (ii) we have not possessed, and do not anticipate to
possess,  in  the  foreseeable  future,  personal  information  of  more  than  one  million  users  or  persons,  based  on  our  understanding  of  the
Cybersecurity Review Measures, we do not expect that we will be subject to cybersecurity review by the CAC in connection with our
offering  of  securities  to  foreign  investors  and  listing  on  the  Nasdaq.  Nevertheless,  the  exact  scope  of  CIIO  and  “internet  platform
operator” under the current regulatory regime remains unclear, and the PRC governmental authorities may have wide discretion in the
interpretation  and  enforcement  of  the  Cybersecurity  Review  Measures  and  the  relevant  laws,  regulations,  implementation  rules  etc.
Therefore, it is uncertain whether we would be deemed as a CIIO or an internet platform operator thereunder.

On July 7, 2022, the CAC promulgated the Security Assessment Measures for Outbound Data Transfers (the “Security Assessment
Measures”), which came into effect on September 1, 2022. Pursuant to the Security Assessment Measures, a data processor shall apply
for the security assessment before any data can be transferred outbound if (i) the data transferred out of China is important data, (ii) the
data  processor  is  a  CIIO  or  the  data  processor  has  processed  personal  information  of  more  than  one  million  people,  (iii)  the  data
processor  has  made  outbound  transfer  of  personal  information  of  100,000  people  or  sensitive  personal  information  of  10,000  people
cumulatively since January 1 of the previous year, or (iv) the security assessment for outbound data transfers is otherwise required by the
CAC. For outbound data transfers conducted before the implementation of the Security Assessment Measures which failed to comply
therewith,  rectification  shall  be  completed  within  six  months  from  the  implementation  thereof.  On  August  31,  2022,  the  CAC
promulgated  the  first  edition  of  the  Guide  to  Applications  for  Security  Assessment  of  Outbound  Data  Transfers,  which  provided
guidance  to  the  implementation  of  the  Security  Assessment  Measures,  and  clarified  the  specific  timeline  and  procedures  for  security
assessment for outbound data transfers under the Security Assessment Measures.

On February 22, 2023, the CAC published promulgated the Measures for the Standard Contract for Outbound Transfer of Personal
Information  (the  “Measures  for  Standard  Contract”),  which  clarified  the  terms  and  conditions  to  be  agreed  on  between  personal
information processors as a data exporter and an overseas data importer regarding the outbound data transfers of personal information.
The  Measures  for  Standard  Contract  will  come  into  effect  on  June  1,  2023.  Under  the  Measures  for  Standard  Contract,  a  personal
information  processor  may  enter  into  the  PRC  Standard  Contract  and  provide  it  with  other  required  materials  to  the  relevant
governmental  authorities  for  filing  to  ensure  the  legality  of  an  outbound  data  transfer  of  personal  information  provided  the  personal
information processor (i) is not a CIIO, (ii) processes personal information of less than one million individuals, (iii) has cumulatively
transferred abroad personal information of less than 100,000 individuals since January 1 of the previous year, and (iv) has cumulatively
transferred abroad sensitive personal information of less than 10,000 individuals since January 1 of the previous year.

The PRC laws and regulations concerning these subject matters are continually evolving and not always clear, and the measures we
take  to  comply  with  these  laws,  regulations  and  industry  standards  may  not  always  be  effective.  We  cannot  assure  you  that  we  will
comply with such laws and regulations regarding cybersecurity, information security, privacy and data protection in all respects and any
failure or perceived failure to comply with these laws, regulations or policy may result in inquiries, penalties and other proceedings or
actions against us by governmental authorities, such as warnings, fines, making certain required rectification, service suspension and/or
other  sanctions,  as  well  as  negative  publicity  and  damage  to  our  reputation.  It  also  remains  uncertain  whether  the  future  regulatory
changes  would  impose  additional  restrictions  on  companies  like  us.  We  cannot  predict  the  impact  of  the  future  regulatory  changes,
including  impact  of  any  draft  measures,  at  this  stage,  and  we  will  closely  monitor  and  assess  any  development  in  the  rule-making
process. If additional requirements are imposed to companies like us, such as the clearance of cybersecurity review, we face uncertainties
as to whether we can fulfill those requirements in a timely manner, or at all. If we are not able to comply with the cybersecurity and data
privacy  requirements  in  a  timely  manner,  or  at  all,  we  may  be  subject  to  government  enforcement  actions  and  investigations,  fines,
penalties  or  suspension  of  our  non-compliant  operations,  which  could  materially  and  adversely  affect  our  business  and  results  of
operations.

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In the United States, we are subject to laws and regulations that address privacy, personal information protection and data security at
both the federal and state levels. Numerous laws and regulations, including security breach notification laws, health information privacy
laws,  and  consumer  protection  laws,  govern  the  collection,  use,  disclosure  and  protection  of  health-related  and  other  personal
information.  Given  the  variability  and  evolving  state  of  these  laws,  we  face  uncertainty  as  to  the  exact  interpretation  of  the  new
requirements, and we may be unsuccessful in implementing all measures required by regulators or courts in their interpretation.

In Europe, regulatory authorities have implemented and are considering a number of legislative and regulatory proposals concerning
data protection. For example, the General Data Protection Regulation (EU) 2016/679, or GDPR, which became effective in May 2018,
imposes a broad range of strict requirements on companies subject to the GDPR, such as us, including, but not limited to, requirements
relating to having legal bases for processing personal information relating to identifiable individuals and transferring such information
outside the European Economic Area (including to the United States), providing details to those individuals regarding the processing of
their  personal  information,  keeping  personal  information  secure,  having  data  processing  agreements  with  third  parties  who  process
personal  information,  responding  to  individuals’  requests  to  exercise  their  rights  in  respect  of  their  personal  information,  reporting
security breaches involving personal data to the competent national data protection authority and affected individuals, and recordkeeping.
The GDPR substantially increases the penalties to which we could be subject in the event of any non-compliance, including fines of up to
10,000,000  Euros  or  up  to  2%  of  our  total  worldwide  annual  turnover  for  certain  comparatively  minor  offenses,  or  up  to  20,000,000
Euros or up to 4% of our total worldwide annual turnover for more serious offenses. Given the new law, we face uncertainty as to the
exact  interpretation  of  the  new  requirements,  and  we  may  be  unsuccessful  in  implementing  all  measures  required  by  data  protection
authorities or courts in interpretation of the new law. National laws of member states of the European Union are in the process of being
adapted  to  the  requirements  under  the  GDPR.  Because  the  GDPR  specifically  gives  member  states  flexibility  with  respect  to  certain
matters,  national  laws  may  partially  deviate  from  the  GDPR  and  impose  different  obligations  from  country  to  country,  leading  to
additional complexity and uncertainty.

We expect that we will continue to face uncertainty as to whether our efforts to comply with evolving obligations under global data
protection,  privacy  and  security  laws  will  be  sufficient.  Any  failure  or  perceived  failure  by  us  to  comply  with  applicable  laws  and
regulations  could  result  in  reputational  damage  or  proceedings  or  actions  against  us  by  governmental  entities,  individuals  or  others.
These  proceedings  or  actions  could  subject  us  to  significant  civil  or  criminal  penalties  and  negative  publicity,  result  in  the  delayed  or
halted  transfer  or  confiscation  of  certain  personal  information,  require  us  to  change  our  business  practices,  increase  our  costs  and
materially harm our business, prospects, financial condition and results of operations. In addition, our current and future relationships
with  customers,  vendors,  pharmaceutical  partners  and  other  third  parties  could  be  negatively  affected  by  any  proceedings  or  actions
against us or current or future data protection obligations imposed on them under applicable laws, including the GDPR. In addition, a
data  breach  affecting  personal  information,  including  health  information,  could  result  in  significant  legal  and  financial  exposure  and
reputational damage that could potentially have an adverse effect on our business.

Our business may continue to be materially and adversely affected by the effects of the COVID-19 pandemic.

The outbreaks of COVID-19, a novel strain of coronavirus, has created significant business disruption which could materially and
adversely  affect  our  business  and  operations.  Beginning  in  2020,  outbreaks  of  COVID-19,  resulted  in  the  temporary  closure  of  many
corporate offices, retail stores, and manufacturing facilities across China. Normal economic life throughout China was sharply curtailed.
The COVID-19 outbreaks led to temporary closure of our offices in the first quarter of 2020 and from March through May 2022, causing
cancellation of in-person attendance at meetings, restrictions on employee travels, and a significant portion of our employees working
from home, which resulted in lower work efficiency and productivity, and disruptions to our business operations and clinical trials. The
operations of our suppliers were also impacted.

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Most of the travel restrictions and quarantine requirements in mainland China were lifted in December 2022. There were surges of
cases in many cities during this time which caused disruption to our and our suppliers’ operations, and there remains uncertainty as to the
future impact of the virus, especially in light of this change in policy. The extent to which the pandemic impacts our results of operations
going forward will depend on future developments which are highly uncertain and unpredictable, including the frequency, duration and
extent of outbreaks of COVID-19, the appearance of new variants with different characteristics, the effectiveness of efforts to contain or
treat cases, and future actions that may be taken in response to these developments. China may experience lower domestic consumption,
higher  unemployment,  severe  disruptions  to  exporting  of  goods  to  other  countries  and  greater  economic  uncertainty,  which  may
materially and adversely impact our business, including our planned and ongoing clinical trials and development. Clinical site initiation,
including  recruiting  clinical  site  investigators  and  clinical  site  staff,  and  patient  enrollment  may  be  delayed  due  to  prioritization  of
hospital resources toward coping with the COVID-19 pandemic. The diversion of healthcare resources away from the conduct of clinical
trials to focus on pandemic concerns, including the attention of physicians serving as our clinical trial investigators and hospitals serving
as  our  clinical  trial  sites,  or  other  staff  supporting  the  conduct  of  our  clinical  trials  may  significantly  disrupt  our  research  activities.
Hospitals have also had reduced patient flow in general during the pandemic period. As a result, the expected timeline for data readouts
of our clinical trials and potential submission and filings will likely be negatively impacted, which would adversely affect and delay our
ability  to  obtain  certain  regulatory  approvals,  increase  our  operating  expenses  and  have  a  material  adverse  effect  on  our  financial
condition. Furthermore, we could face the interruption of key clinical activities such as trial site data monitoring, which may impact the
integrity of clinical data. Similarly, our ability to recruit and retain patients and principal investigators and site staff who, as healthcare
providers, may have heightened exposure to COVID-19, may be impeded, which would also materially and adversely impact our clinical
trial operations. As a result of disruptions caused by the COVID-19 pandemic, we may require additional capital to continue our research
activities, which we may be unable to secure on favorable terms, if at all. In addition, we believe that our business partners, such as our
licensing partners, CROs, CMOs or suppliers, have also experienced and may continue to experience similar or more severe disruptions
to their business operations. Any disruption to the business operations of us and our business partners could materially and adversely
affect the development of our drug candidates, our business, financial condition and results of operations. Consequently, the COVID-19
pandemic may continue to materially and adversely affect our business, financial condition and results of operations in the future. To the
extent the COVID-19 pandemic adversely affects our business and financial results, it may also have the effect of heightening many of
the other risks described in this “Risk Factors” section. See also “Item 5. Operating and Financial Review and Prospects—A. Operating
Results—Impact of the COVID-19 Pandemic” for a detailed description of the impact of the COVID-19 pandemic on our business.

Business disruptions could seriously harm our future revenue and financial condition and increase our costs and expenses.

Natural disasters, acts of war or terrorism, health epidemics, or other factors beyond our control may adversely affect the economy,
infrastructure  and  livelihood  of  the  people  in  the  regions  where  we  conduct  our  business.  Our  operations  may  be  under  the  threat  of
floods,  earthquakes,  sandstorms,  snowstorms,  fire  or  drought,  power,  water  or  fuel  shortages,  failures,  malfunction  and  breakdown  of
information  management  systems,  unexpected  maintenance  or  technical  problems,  or  may  be  susceptible  to  potential  wars  or  terrorist
attacks. Serious natural disasters may result in loss of lives, injury, destruction of assets and disruption of our business and operations.
Acts of war or terrorism may also injure our employees, cause loss of lives, disrupt our business network and destroy our markets. Any
of these factors and other factors beyond our control could have an adverse effect on the overall business sentiment and environment,
cause uncertainties in the regions where we conduct business, cause our business to suffer in ways that we cannot predict and materially
and adversely impact our business, financial conditions and results of operations.

Our business and results of operations could be adversely affected by public health crisis (including the COVID-19 global pandemic)
and natural catastrophes or other disasters outside of our control in the locations in which we, our suppliers, CROs, CMOs and other
contractors operate.

In addition to the impact of COVID-19, global pandemics, natural catastrophes or other disasters in the locations in which we, our
suppliers,  CROs,  CMOs  and  other  contractors  operate,  or  fear  of  spread  of  contagious  diseases,  such  as  avian  influenza,  severe  acute
respiratory syndrome (SARS), influenza A (H1N1), Ebola or another epidemic could disrupt the business operations of our company, our
suppliers, CROs, CMOs and other contractors. The occurrence of any of the foregoing events is beyond our control but may result in
regional  or  global  economic  distress,  which  may  materially  and  adversely  affect  our  business,  financial  condition  and  results  of
operations.

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If we fail to implement and maintain an effective system of internal controls over financial reporting, we may be unable to accurately
report our results of operations, meet our reporting obligations or prevent fraud.

We are a public company in the United States subject to the Sarbanes-Oxley Act of 2002. Pursuant to Section 404 of the Sarbanes-
Oxley Act, we are required to include a report by our management on our internal control over financial reporting and our independent
registered public accounting firm must include an attestation report on internal control over financial reporting in our annual reports. Our
management  may  conclude  that  our  internal  control  over  financial  reporting  is  not  effective.  Moreover,  even  if  our  management
concludes  that  our  internal  control  over  financial  reporting  is  effective,  our  independent  registered  public  accounting  firm,  after
conducting its own independent testing, may issue an adverse report if it is not satisfied with our internal controls or the level at which
our controls are documented, designed, operated or reviewed, or if it interprets the relevant requirements differently from us. In addition,
as a public company, our reporting obligations may place a significant strain on our management, operational and financial resources and
systems  for  the  foreseeable  future.  We  may  be  unable  to  timely  complete  our  evaluation  testing  and  any  required  remediation.  Our
management,  with  the  participation  of  our  acting  chief  executive  officer  and  interim  chief  financial  officer,  and  our  independent
registered  public  accounting  firm  evaluated  the  effectiveness  of  our  internal  control  over  financial  reporting  and  concluded  that  our
internal  control  over  financial  reporting  was  effective  as  of  December  31,  2022.  See  also  “Item  15.  Controls  and  Procedures”  for  a
detailed description.

If we fail to maintain the adequacy of our internal control over financial reporting, as these standards are modified, supplemented or
amended from time to time, we may not be able to conclude on an ongoing basis that we have effective internal control over financial
reporting  in  accordance  with  Section  404.  If  we  fail  to  establish  and  maintain  adequate  internal  controls,  we  could  suffer  material
misstatements  in  our  financial  statements  and  fail  to  meet  our  reporting  obligations,  which  would  likely  cause  investors  to  lose
confidence in our reported financial information. This could limit our access to capital markets, adversely affect our results of operations
and lead to a decline in the trading price of the ADSs. Additionally, ineffective internal controls could expose us to an increased risk of
fraud or misuse of corporate assets and subject us to potential delisting from the stock exchange on which we list or to other regulatory
investigations and civil or criminal sanctions. We could also be required to restate our historical financial statements.

Our reputation is important to our business success. Negative publicity may adversely affect our reputation and business prospects.

Any negative publicity concerning us, our affiliates or any entity that shares the “I-Mab” name, even if untrue, could adversely affect
our reputation and business prospects. There can be no assurance that negative publicity about us or any of our affiliates or any entity that
shares the “I-Mab” name would not damage our brand image or have a material adverse effect on our business, results of operations and
financial condition.

We may be subject to material litigation and regulatory proceedings.

We  may  be  subject  to  litigation  in  China  and  outside  China  relating  to  securities  law  class  actions,  third-party  and  principal
intellectual  property  infringement  claims,  claims  relating  to  data  and  privacy  protection,  contractual  agreements,  employment  related
cases and other matters in the ordinary course of our business. For details of the material legal proceedings that we are subject to, see
“Item  8.  Financial  Information—A.  Consolidated  Statements  and  Other  Financial  Information—Legal  Proceedings.”  Laws,  rules  and
regulations may vary in their scope and overseas laws and regulations may impose requirements that are more stringent than, or which
conflict with, those in China. We have acquired and may acquire companies that may become subject to litigation, as well as regulatory
proceedings. In addition, in connection with litigation or regulatory proceedings we may be subject to in various jurisdictions, we may be
prohibited by laws, regulations or government authorities in one jurisdiction from complying with subpoenas, orders or other requests
from courts or regulators of other jurisdictions, including those relating to data held in or with respect to persons in these jurisdictions.
Our failure or inability to comply with the subpoenas, orders or requests could subject us to fines, penalties or other legal liability, which
could have a material adverse effect on our reputation, business, results of operations and the trading price of our ADSs.

As a publicly-listed company, we and certain of our subsidiaries face additional exposure to claims and lawsuits inside and outside
China.  We  will  need  to  defend  against  these  lawsuits,  including  any  appeals  should  our  initial  defense  be  successful.  The  litigation
process may utilize a material portion of our cash resources and divert management’s attention away from the day-to-day operations of
our company, all of which could harm our business. There can be no assurance that we will prevail in any of these cases, and any adverse
outcome of these cases could have a material adverse effect on our reputation, business and results of operations. In addition, although
we  have  obtained  directors’  and  officers’  liability  insurance,  the  insurance  coverage  may  not  be  adequate  to  cover  our  obligations  to
indemnify  our  directors  and  officers,  fund  a  settlement  of  litigation  in  excess  of  insurance  coverage  or  pay  an  adverse  judgment  in
litigation.

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The existence of litigation, claims, investigations and proceedings may harm our reputation, limit our ability to conduct our business
in the affected areas and adversely affect the trading price of our ADSs. The outcome of any claims, investigations and proceedings is
inherently uncertain, and in any event defending against these claims could be both costly and time-consuming, and could significantly
divert  the  efforts  and  resources  of  our  management  and  other  personnel.  An  adverse  determination  in  any  litigation,  investigation  or
proceeding could cause us to pay damages, incur legal and other costs, limit our ability to conduct business or require us to change the
manner in which we operate.

Negative publicity with respect to us, our management, employees, business partners, affiliates, or our industry, may materially and
adversely affect our reputation, business, results of operations and prospect.

Our  reputation  is  vulnerable  to  many  threats  that  can  be  difficult  or  impossible  to  control,  and  costly  or  impossible  to  remediate.
Negative  publicity  about  us,  such  as  alleged  misconduct  or  improper  activities,  or  negative  rumors  relating  to  us,  our  management,
employees,  business  partners  or  affiliates,  can  harm  our  business  and  results  of  operations,  even  if  they  are  unsubstantiated  or  are
satisfactorily  addressed.  Any  regulatory  inquiries  or  investigations  or  other  actions  against  our  management,  any  perceived  unethical,
fraudulent,  or  inappropriate  business  conduct  by  us  or  perceived  wrong-doing  by  any  key  member  of  our  management  team  or  other
employees, our business partners or our affiliates, could harm our reputation and materially adversely affect our business. Regardless of
the  merits  or  final  outcome  of  any  such  regulatory  inquiries  or  investigations  or  other  actions,  our  reputation  may  be  substantially
damaged, which may impede our ability to attract and retain talents and business partners and grow our business.

Moreover, any negative media publicity about the biopharmaceutical industry in general or product or service quality problems of
other  companies  in  the  industry,  including  our  peers,  may  also  negatively  impact  our  reputation.  If  we  are  unable  to  maintain  a  good
reputation,  our  ability  to  attract  and  retain  key  employees  and  business  partners  could  be  harmed  which  in  turn  may  materially  and
adversely affect our business, results of operations and prospect.

Change in business prospects of acquisitions may result in impairment to our goodwill, which could negatively affect our reported
results of operations.

We acquired a controlling interest in I-Mab Bio-tech (Tianjin) Co., Ltd (“I-Mab Tianjin”) in July 2017 and the remaining interest in
I-Mab Tianjin in May 2018. In connection with our acquisition of I-Mab Tianjin, we identified RMB148.8 million of intangible assets
and RMB162.6 million of goodwill of I-Mab Tianjin attributable to core technology and synergy effects expected from combining the
operations of the discovery and development of innovative biologics and the development of clinical stage biologics. We are required to
test our goodwill annually, or more frequently if events or changes in circumstances indicate that it might be impaired. An impairment
loss of goodwill is recognized for the amount by which the carrying amount of the reporting unit exceeds its fair value, and we would be
required  to  write  down  the  carrying  value  of  our  goodwill  during  the  period  in  which  it  is  determined  to  be  impaired,  which  would
materially and adversely affect our results of operations.

We are subject to changing law and regulations regarding regulatory matters, corporate governance and public disclosure that have
increased both our costs and the risk of non-compliance.

We are or will be subject to rules and regulations by various governing bodies, including, for example, the SEC, which is charged
with  the  protection  of  investors  and  the  oversight  of  companies  whose  securities  are  publicly  traded,  and  the  various  regulatory
authorities in China and the Cayman Islands, and to new and evolving regulatory measures under applicable law. Our efforts to comply
with new and changing laws and regulations have resulted in and are likely to continue to result in, increased general and administrative
expenses and a diversion of management time and attention from revenue-generating activities to compliance activities.

Moreover,  because  these  laws,  regulations  and  standards  are  subject  to  varying  interpretations,  their  application  in  practice  may
evolve over time as new guidance becomes available. This evolution may result in continuing uncertainty regarding compliance matters
and additional costs necessitated by ongoing revisions to our disclosure and governance practices. If we fail to address and comply with
these regulations and any subsequent changes, we may be subject to penalty and our business may be harmed.

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Risks Related to Doing Business in China

The PRC government’s significant oversight and discretion over our business operations could result in a material adverse change in
our operations and the value of our ADSs.

We conduct our businesses in China primarily through our PRC subsidiaries. Our operations in China are governed by PRC laws and
regulations.  The  PRC  government  has  significant  oversight  and  discretion  over  the  conduct  of  our  business  and  may  intervene  or
influence our operations as the government deems appropriate to advance regulatory and societal goals and policy positions. The PRC
government has recently published new policies that significantly affected certain industries and we cannot rule out the possibility that it
will in the future release regulations or policies that directly or indirectly affect our industry or require us to seek additional permission to
continue  our  operations,  which  could  result  in  a  material  adverse  change  in  our  operation  and/or  the  value  of  our  ADSs.  Therefore,
investors of our company and our business face potential uncertainty from actions taken by the PRC government affecting our business.

The PCAOB had historically been unable to inspect our auditor in relation to their audit work performed for our financial statements
and the inability of the PCAOB to conduct inspections of our auditor in the past has deprived our investors with the benefits of such
inspections.

Our auditor, the independent registered public accounting firm that issues the audit report included elsewhere in this annual report,
as an auditor of companies that are traded publicly in the United States and a firm registered with the PCAOB, is subject to laws in the
United  States  pursuant  to  which  the  PCAOB  conducts  regular  inspections  to  assess  its  compliance  with  the  applicable  professional
standards. The auditor is located in mainland China, a jurisdiction where the PCAOB was historically unable to conduct inspections and
investigations completely before 2022.

As a result, we and investors in the ADSs were deprived of the benefits of such PCAOB inspections. The inability of the PCAOB to
conduct inspections of auditors in China in the past has made it more difficult to evaluate the effectiveness of our independent registered
public accounting firm’s audit procedures or quality control procedures as compared to auditors outside of China that are subject to the
PCAOB inspections. On December 15, 2022, the PCAOB issued a report that vacated its December 16, 2021 determination and removed
mainland China and Hong Kong from the list of jurisdictions where it is unable to inspect or investigate completely registered public
accounting firms. However, if the PCAOB determines in the future that it no longer has full access to inspect and investigate completely
accounting firms in mainland China and Hong Kong, and we use an accounting firm headquartered in one of these jurisdictions to issue
an audit report on our financial statements filed with the Securities and Exchange Commission, we and investors in our ADSs would be
deprived  of  the  benefits  of  such  PCAOB  inspections  again,  which  could  cause  investors  and  potential  investors  in  the  ADSs  to  lose
confidence in our audit procedures and reported financial information and the quality of our financial statements.

Our ADSs may be prohibited from trading in the United States under the HFCAA in the future if the PCAOB is unable to inspect or
investigate completely auditors located in China. The delisting of the ADSs, or the threat of their being delisted, may materially and
adversely affect the value of your investment.

Pursuant to the HFCAA, if the SEC determines that we have filed audit reports issued by a registered public accounting firm that has
not been subject to inspections by the PCAOB for two consecutive years, the SEC will prohibit our shares or ADSs from being traded on
a national securities exchange or in the over-the-counter trading market in the United States.

On December 16, 2021, the PCAOB issued a report to notify the SEC of its determination that the PCAOB was unable to inspect or
investigate completely registered public accounting firms headquartered in mainland China and Hong Kong and our auditor was subject
to that determination. In May 2022, the SEC conclusively listed us as a Commission-Identified Issuer under the HFCAA following the
filing of our annual report on Form 20-F for the fiscal year ended December 31, 2021. On December 15, 2022, the PCAOB removed
mainland China and Hong Kong from the list of jurisdictions where it is unable to inspect or investigate completely registered public
accounting firms. For this reason, we do not expect to be identified as a “Commission Identified Issuer” under the HFCAA after we file
this annual report on Form 20-F for the fiscal year ended December 31, 2022.

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Each year, the PCAOB will determine whether it can inspect and investigate completely audit firms in mainland China and Hong
Kong,  among  other  jurisdictions.  If  the  PCAOB  determines  in  the  future  that  it  no  longer  has  full  access  to  inspect  and  investigate
completely  accounting  firms  in  mainland  China  and  Hong  Kong  and  we  use  an  accounting  firm  headquartered  in  one  of  these
jurisdictions  to  issue  an  audit  report  on  our  financial  statements  filed  with  the  Securities  and  Exchange  Commission,  we  would  be
identified  as  a  Commission-Identified  Issuer  following  the  filing  of  the  annual  report  on  Form  20-F  for  the  relevant  fiscal  year.  In
accordance with the HFCAA, our securities would be prohibited from being traded on a national securities exchange or in the over-the-
counter trading market in the United States if we are identified as a Commission-Identified Issuer for two consecutive years in the future.
If our shares and ADSs are prohibited from trading in the United States, there is no certainty that we will be able to list on a non-U.S.
exchange or that a market for our shares will develop outside of the United States. A prohibition of being able to trade in the United
States  would  substantially  impair  your  ability  to  sell  or  purchase  our  ADSs  when  you  wish  to  do  so,  and  the  risk  and  uncertainty
associated with delisting would have a negative impact on the price of our ADSs. Also, such a prohibition would significantly affect our
ability  to  raise  capital  on  terms  acceptable  to  us,  or  at  all,  which  would  have  a  material  adverse  impact  on  our  business,  financial
condition, and prospects.

The  approval  of  and  filing  with  relevant  PRC  government  authorities  may  be  required  in  connection  with  our  offshore  offerings
under PRC law, and, if required, we cannot predict whether or for how long we will be able to obtain such approval or complete such
filing.

The Regulations on Mergers and Acquisitions of Domestic Enterprises by Foreign Investors, or the M&A Rules, adopted by six PRC
regulatory  agencies  in  2006  and  amended  in  2009,  requires  an  overseas  special  purpose  vehicle  formed  for  listing  purposes  through
acquisitions  of  PRC  domestic  companies  and  controlled  by  PRC  persons  or  entities  to  obtain  the  approval  of  the  CSRC  prior  to  the
listing and trading of such special purpose vehicle’s securities on an overseas stock exchange. The interpretation and application of the
regulations remain unclear, and our offshore offerings may ultimately require approval of the CSRC. If the CSRC approval is required, it
is uncertain whether we can or how long it will take us to obtain the approval and, even if we obtain such CSRC approval, the approval
could be rescinded. Any failure to obtain or delay in obtaining the CSRC approval for any of our offshore offerings, or a rescission of
such  approval  if  obtained  by  us,  may  subject  us  to  sanctions  imposed  by  the  CSRC  or  other  PRC  regulatory  authorities,  which  may
include fines and penalties on our operations in China, restrictions or limitations on our ability to pay dividends outside of China, and
other forms of sanctions that may materially and adversely affect our business, financial condition, and results of operations.

On July 6, 2021, the relevant PRC government authorities issued Opinions on Strictly Cracking Down Illegal Securities Activities in
Accordance with the Law. These opinions emphasized the need to strengthen the administration over illegal securities activities and the
supervision on overseas listings by China-based companies and proposed to take effective measures, such as promoting the construction
of relevant regulatory systems to deal with the risks and incidents faced by China-based overseas-listed companies.

On February 17, 2023, the CSRC promulgated the Overseas Listing Trial Measures and relevant five guidelines, which came into
effect on March 31, 2023. The Overseas Listing Trial Measures comprehensively improve and reform the existing regulatory regime for
overseas offering and listing of PRC domestic companies’ securities and regulate both direct and indirect overseas offering and listing of
PRC domestic companies’ securities by adopting a filing-based regulatory regime. Pursuant to the Overseas Listing Trial Measures, an
overseas  offering  and  listing  by  a  domestic  company,  whether  directly  or  indirectly,  must  be  filed  with  the  CSRC.  Specifically,  the
examination  and  determination  of  an  indirect  overseas  offering  and  listing  shall  be  conducted  on  a  substance-over-form  basis,  and  an
offering  and  listing  will  be  considered  as  an  indirect  overseas  offering  and  listing  by  a  domestic  company  if  the  issuer  meets  the
following both conditions: (i) the operating income, gross profit, total assets or net assets of such domestic company in the most recent
fiscal year was more than 50% of the relevant line items in the issuer’s audited consolidated financial statements for that year; and (ii) the
main part of operating activities is conducted in the PRC or the main place of business is located in the PRC, or the senior management
personnel responsible for business operations and management are mostly PRC citizens or are ordinarily resident in the PRC. According
to the Overseas Listing Trial Measures, in the case of an indirect overseas offering and listing by a domestic company, the issuer shall
designate  a  main  domestic  operating  entity  to  file  with  the  CSRC.  Particularly,  (i)  with  respect  to  the  issuer’s  overseas  initial  public
offering or listing, the filing application shall be submitted to the CSRC within three business days after the submission by the issuer of
its initial listing application; (ii) with respect to the issuer’s follow-on offering on the same overseas market, the filing application shall
be submitted to the CSRC within three business days after the completion of the follow-on offering. The Overseas Listing Trial Measures
also require subsequent reports to be filed with the CSRC on material events, such as a change-of-control event, or voluntary or forced
delisting of the issuer who has completed the overseas offering and listing. If the issuer fails to complete the filing procedure or conceals
any  material  fact  or  falsifies  any  major  content  in  its  filing  documents,  it  may  be  subject  to  administrative  penalties,  such  as  order  to
rectify, warnings, fines, and its controlling shareholders, actual controllers, the person directly in charge and other directly liable persons
may also be subject to administrative penalties, such as warnings and fines. Furthermore, the Overseas Listing Trial Measures also set
forth certain regulatory red lines for overseas offerings and listings by domestic enterprises.

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On the same day, the CSRC also issued the Notice on Administration for the Filing of Overseas Offering and Listing by Domestic
Companies,  which,  among  others,  clarified  that,  a  domestic  company  that  has  completed  the  overseas  offering  and  listing  upon
implementation  of  the  Overseas  Listing  Trial  Measures  shall  be  regarded  as  an  existing  company,  and  is  not  required  to  file  with  the
CSRC until its follow-on refinancing or the occurrence of other filing matters.

On  February  24,  2023,  the  CSRC,  jointly  with  other  relevant  governmental  authorities,  promulgated  the  revised  Provisions  on
Strengthening  Confidentiality  and  Archives  Management  of  Overseas  Securities  Issuance  and  Listing  by  Domestic  Enterprises,  or  the
Confidentiality and Archives Management Provisions, which came into effect on March 31, 2023. According to the Confidentiality and
Archives  Management  Provisions,  in  the  overseas  offering  and  listing  by  domestic  companies,  directly  or  indirectly,  such  domestic
companies, as well as the securities companies and securities service agencies providing relevant services, shall strictly abide the relevant
laws  and  regulations,  and  the  Confidentiality  and  Archives  Management  Provisions.  If  a  domestic  company  provides  or  publicly
discloses, either directly or through its overseas listed entity, to entities and individuals such as securities companies, securities service
agencies and overseas regulatory authorities, the documents and materials which contain state secrets or government work secrets, such
domestic  company  shall  obtain  the  approval  from  competent  governmental  authorities,  and  file  with  the  secrecy  administrative
department at the same level with the approving governmental authority.

In  addition,  we  cannot  assure  you  that  any  new  rules  or  regulations  promulgated  in  the  future  will  not  impose  additional
requirements on us. If it is determined in the future that approval or filing from any regulatory authorities or other procedures, including
the cybersecurity review under the Cybersecurity Review Measures, are required for our offshore offerings, it is uncertain whether we
can  or  how  long  it  will  take  us  to  obtain  such  approval  or  complete  such  filing  procedures  and  any  such  approval  or  filing  could  be
rescinded or rejected. Any failure to obtain or delay in obtaining such approval or completing such filing procedures for our offshore
offerings, or a rescission of any such approval or filing if obtained by us, may subject us to sanctions by relevant regulatory authorities.
These  regulatory  authorities  may  impose  fines  and  penalties  on  our  operations  in  China,  limit  our  ability  to  pay  dividends  outside  of
China, limit our operating privileges in China, delay or restrict the repatriation of the proceeds from our offshore offerings into China or
take other actions that could materially and adversely affect our business, financial condition, results of operations, and prospects, as well
as the trading price of our listed securities. These regulatory authorities also may take actions requiring us, or making it advisable for us,
to halt our offshore offerings before settlement and delivery of the shares offered. Consequently, if investors engage in market trading or
other activities in anticipation of and prior to settlement and delivery, they do so at the risk that settlement and delivery may not occur. In
addition, if any regulatory authorities later promulgate new rules or explanations requiring that we obtain their approvals or accomplish
the required filing or other regulatory procedures for our prior offshore offerings, we may be unable to obtain a waiver of such approval
requirements,  if  and  when  procedures  are  established  to  obtain  such  a  waiver.  Any  uncertainties  or  negative  publicity  regarding  such
approval requirement could materially and adversely affect our business, prospects, financial condition, reputation, and the trading price
of our listed securities.

Uncertainties with respect to the PRC legal system could materially and adversely affect us.

The PRC legal system is a civil law system based on written statutes. Unlike the common law system, prior court decisions under the
civil  law  system  may  be  cited  for  reference  but  have  limited  precedential  value.  The  overall  effect  of  legislation  over  the  past  four
decades has significantly enhanced the protections afforded to various forms of foreign investments in China. However, China has not
developed a fully integrated legal system, and recently enacted laws and regulations may not sufficiently cover all aspects of economic
activities in China. Since these laws and regulations are relatively new and may be amended from time to time, and the PRC legal system
continues to rapidly evolve, and because of the limited number of published decisions and the nonbinding nature of such decisions, and
because the laws and regulations often give the relevant regulator significant discretion in how to enforce them, the interpretations of
many laws, regulations and rules may not be uniform and enforcement of these laws, regulations and rules involves uncertainties. These
uncertainties  may  affect  our  judgment  on  the  relevance  of  legal  requirements  and  our  ability  to  enforce  our  contractual  rights  or  tort
claims. Besides, the PRC is geographically large and divided into various provinces and municipalities and, as such, different laws, rules,
regulations  and  policies  may  have  different  and  varying  applications  and  interpretations  in  different  parts  of  the  PRC.  Legislation  or
regulations, particularly in local applications, may be enacted without sufficient prior notice or announcement to the public. In addition,
the regulatory uncertainties may be exploited through unmerited or frivolous legal actions or threats in attempts to extract payments or
benefits from us. Furthermore, the PRC legal system is based in part on government policies and internal rules, some of which are not
published on a timely basis, or at all, and may have a retroactive effect. As a result, we may not be aware of our violation of any of these
policies and rules until sometime after the violation. Agreements that are governed by PRC laws may be more difficult to enforce by
legal or arbitral proceedings in the PRC than that in other countries with different legal systems. In addition, any administrative and court
proceedings in China may be protracted, resulting in substantial costs and diversion of resources and management attention.

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The  ability  of  U.S.  authorities  to  bring  actions  for  violations  of  U.S.  securities  law  and  regulations  against  us,  our  directors  or
executive officers may be limited. Therefore, you may not be afforded the same protection as provided to investors in U.S. domestic
companies.

The SEC, the U.S. Department of Justice, or the DOJ, and other U.S. authorities often have substantial difficulties in bringing and
enforcing  actions  against  non-U.S.  companies  and  non-U.S.  persons.  Due  to  jurisdictional  limitations,  matters  of  comity  and  various
other factors, the SEC, the DOJ and other U.S. authorities may be limited in their ability to pursue bad actors, including in instances of
fraud, in emerging markets such as China. We conduct our operations mainly in China and our assets are mainly located in China. In
addition, a majority of our directors and executive officers reside within China. There are significant legal and other obstacles for U.S.
authorities to obtain information needed for investigations or litigation against us or our directors or executive officers in case we or any
of these individuals engage in fraud or other wrongdoing. In addition, local authorities in China may be constrained in their ability to
assist U.S. authorities and overseas investors in connection with legal proceedings. As a result, if we, our directors or executive officers
commit  any  securities  law  violation,  fraud  or  other  financial  misconduct,  the  U.S.  authorities  may  not  be  able  to  conduct  effective
investigations or bring and enforce actions against us, our directors, executive officers or other gatekeepers. Therefore, you may not be
able to enjoy the same protection provided by various U.S. authorities as it is provided to investors in U.S. domestic companies.

The pharmaceutical industry in China is highly regulated and such regulations are subject to change which may affect approval and
commercialization of our drugs.

Our  research  and  development  operations  and  manufacturing  facilities  are  mainly  in  China,  which  we  believe  confers  clinical,
commercial  and  regulatory  advantages.  The  pharmaceutical  industry  in  China  is  subject  to  comprehensive  government  regulation  and
supervision,  encompassing  the  approval,  registration,  manufacturing,  packaging,  licensing  and  marketing  of  new  drugs.  See  “Item  4.
Information on the Company—B. Business Overview—Regulation” for a discussion of the regulatory requirements that are applicable to
our current and planned business activities in China. In recent years, the regulatory framework in China regarding the pharmaceutical
industry  has  undergone  significant  changes,  and  we  expect  that  it  will  continue  to  undergo  significant  changes.  Any  such  changes  or
amendments  may  result  in  increased  compliance  costs  on  our  business  or  cause  delays  in  or  prevent  the  successful  development  or
commercialization of our drug candidates in China and reduce the current benefits we believe are available to us from developing and
manufacturing drugs in China. PRC authorities have become increasingly vigilant in enforcing laws in the pharmaceutical industry and
any failure by us or our partners to maintain compliance with applicable laws and regulations or obtain and maintain required licenses
and permits may result in the suspension or termination of our business activities in China. We believe our strategy and approach are
aligned with the PRC government’s regulatory policies, but we cannot ensure that our strategy and approach will continue to be aligned.

Changes in China’s economic, political or social conditions or government policies could have a material and adverse effect on our
business, financial condition and results of operations.

A significant portion of our operations are in China. Our financial condition and results of operations are affected to a large extent by

economic, political, social and legal developments in China.

The PRC economy differs from the economies of most developed countries in many respects, including the extent of government
involvement, level of development, growth rate, control of foreign exchange and allocation of resources. Although the PRC government
has  implemented  measures  emphasizing  the  utilization  of  market  forces  for  economic  reform,  the  reduction  of  state  ownership  of
productive assets, and the establishment of improved corporate governance in business enterprises, a substantial portion of productive
assets  in  China  is  still  owned  by  the  government.  In  addition,  the  PRC  government  continues  to  play  a  significant  role  in  regulating
industrial development by imposing industrial policies. The PRC government also exercises significant control over China’s economic
growth  by  allocating  resources,  controlling  payment  of  foreign  currency-denominated  obligations,  setting  monetary  policy,  regulating
financial services and institutions and providing preferential treatment to particular industries or companies.

While the PRC economy has experienced significant growth in the past four decades, growth has been uneven, both geographically
and among various sectors of the economy. The PRC government has implemented various measures to encourage economic growth and
guide the allocation of resources. Some of these measures may benefit the overall PRC economy, but may also have a negative effect on
us. Our business, financial condition and results of operations could be materially and adversely affected by government control over
capital investments or changes in tax regulations that are applicable to us.

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In addition, the PRC government had, in the past, implemented certain measures, including interest rate increases, to control the pace
of  economic  growth.  These  measures  may  cause  decreased  economic  activity  in  China,  which  may  adversely  affect  our  business  and
results of operations. More generally, if the business environment in China deteriorates from the perspective of domestic or international
investment, our business in China may also be adversely affected.

There are uncertainties regarding the interpretation and enforcement of PRC laws, rules and regulations.

Our primary business is governed by PRC laws and regulations. Our primary business operation is supervised by relevant regulatory
authorities in China. The PRC legal system is a civil law system based on written statutes and, unlike the common law system, prior
court decisions can only be cited as reference and have limited precedential value. Additionally, written statutes in the PRC are often
principle-oriented and require detailed interpretations by the enforcement bodies to further apply and enforce such laws. Since 1979, the
PRC government has developed a comprehensive system of laws, rules and regulations in relation to economic matters, such as foreign
investment, corporate organization and governance, commerce, taxation and trade. However, the interpretation and enforcement of these
laws, rules and regulations involve uncertainties and may not be as consistent or predictable as in other more developed jurisdictions. As
these laws and regulations are continually evolving in response to changing economic and other conditions, and because of the limited
volume of published cases and their non-binding nature, any particular interpretation of PRC laws and regulations may not be definitive.
Moreover, we cannot predict the effect of future developments in the PRC legal system and regulatory structure. Such unpredictability
towards our contractual, property and procedural rights as well as our rights licensed, approved or granted by the competent regulatory
authority  could  adversely  affect  our  business  and  impede  our  ability  to  continue  our  operations.  In  addition,  the  PRC  legal  system  is
based in part on government policies and internal rules, some of which are not published on a timely basis, if at all, and which may have
a retroactive effect. Hence, we may not be aware of violation of these policies and rules until after such violation has occurred. Further,
the legal protections available to us and our investors under these laws, rules and regulations may be limited.

In  addition,  any  administrative  or  court  proceedings  in  China  may  be  protracted,  resulting  in  substantial  costs  and  diversion  of
resources  and  management  attention.  Since  PRC  administrative  and  court  authorities  have  significant  discretion  in  interpreting  and
implementing statutory and contractual terms, it may be more difficult to evaluate the outcome of administrative and court proceedings
and the level of legal protection we enjoy than in more developed legal systems. These uncertainties may impede our ability to enforce
various  contracts  we  have  entered  into  and  could  materially  and  adversely  affect  our  business,  financial  condition  and  results  of
operations.

You may experience difficulties in effecting service of legal process, enforcing foreign judgments or bringing actions in China against
us or our management named in this annual report based on foreign laws.

We are a company incorporated under the laws of the Cayman Islands, we conduct substantially all of our operations in China and
substantially  all  of  our  assets  are  located  in  China.  In  addition,  all  our  senior  executive  officers  reside  within  China  for  a  significant
portion of the time and some of them are PRC nationals. As a result, it may be difficult for you to effect service of process upon us or
those persons inside China. It may also be difficult for you to enforce in U.S. courts judgments obtained in U.S. courts based on the civil
liability provisions of the U.S. federal securities laws against us and our officers and directors as none of them currently resides in the
United  States  or  has  substantial  assets  located  in  the  United  States.  In  addition,  there  is  uncertainty  as  to  whether  the  courts  of  the
Cayman Islands or the PRC would recognize or enforce judgments of U.S. courts against us or such persons predicated upon the civil
liability provisions of the securities laws of the United States or any state.

The  recognition  and  enforcement  of  foreign  judgments  are  provided  for  under  the  PRC  Civil  Procedures  Law.  PRC  courts  may
recognize and enforce foreign judgments in accordance with the requirements of the PRC Civil Procedures Law based either on treaties
between China and the country where the judgment is made or on principles of reciprocity between jurisdictions. China does not have
any treaties or other forms of written arrangement with the United States that provide for the reciprocal recognition and enforcement of
foreign judgments. In addition, according to the PRC Civil Procedures Law, the PRC courts will not enforce a foreign judgment against
us or our directors and officers if they decide that the judgment violates the basic principles of PRC laws or national sovereignty, security
or the public interest. As a result, it is uncertain whether and on what basis a PRC court would enforce a judgment rendered by a court in
the United States.

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It may be difficult for overseas regulators to conduct investigation or collect evidence within China.

Shareholder claims or regulatory investigation that are common in the United States generally are difficult to pursue as a matter of
law or practicality in China. For example, in China, there are significant legal and other obstacles to providing information needed for
regulatory investigations or litigations initiated outside China. Although the authorities in China may establish a regulatory cooperation
mechanism  with  the  securities  regulatory  authorities  of  another  country  or  region  to  implement  cross-border  supervision  and
administration,  such  cooperation  with  the  securities  regulatory  authorities  in  the  Unities  States  may  not  be  efficient  in  the  absence  of
mutual and practical cooperation mechanism. Furthermore, according to Article 177 of the PRC Securities Law, which became effective
in March 2020, no overseas securities regulator is allowed to directly conduct investigation or evidence collection activities within the
PRC territory. While detailed interpretation of or implementation rules under Article 177 have yet to be promulgated, the inability for an
overseas  securities  regulator  to  directly  conduct  investigation  or  evidence  collection  activities  within  China  may  further  increase  the
difficulties  you  face  in  protecting  your  interests.  See  also  “—General  Risks  Related  to  Our  ADSs—  You  may  face  difficulties  in
protecting your interests, and your ability to protect your rights through U.S. courts may be limited, because we are incorporated under
Cayman Islands law.” for risks associated with investing in us as a Cayman Islands company.

We may be restricted from transferring our scientific data abroad.

On March 17, 2018, the General Office of the PRC State Council promulgated the Measures for the Management of Scientific Data,
or the Scientific Data Measures, which provide a broad definition of scientific data and relevant rules for the management of scientific
data.  According  to  the  Scientific  Data  Measures,  enterprises  in  China  must  seek  governmental  approval  before  any  scientific  data
involving a state secret may be transferred abroad or to foreign parties. Further, any researcher conducting research funded, at least in
part,  by  the  PRC  government  is  required  to  submit  relevant  scientific  data  for  management  by  the  entity  to  which  such  researcher  is
affiliated before such data may be published in any foreign academic journal. Currently, as the term “state secret” is not clearly defined,
there  is  no  assurance  that  we  can  always  obtain  relevant  approvals  for  sending  scientific  data  (such  as  the  results  of  our  pre-clinical
studies or clinical trials conducted within China) abroad, or to our foreign partners in China.

If we are unable to obtain the necessary approvals in a timely manner, or at all, our research and development of drug candidates
may be hindered, which may materially and adversely affect our business, results of operations, financial conditions and prospects. If
relevant government authorities consider the transmission of our scientific data to be in violation of the requirements under the Scientific
Data Measures, we may be subject to specific administrative penalties imposed by those government authorities.

Changes in international trade policies and rising political tensions, particularly between the U.S. and China, may adversely impact
our business and operating results.

The  U.S.  government  has  made  statements  and  taken  certain  actions  that  may  lead  to  potential  changes  to  U.S.  and  international
trade  policies  towards  China.  While  the  “Phase  One”  agreement  was  signed  between  the  United  States  and  China  on  trade  matters,  it
remains unclear what additional actions, if any, will be taken by the U.S. or other governments with respect to international trade, tax
policy related to international commerce, or other trade matters. The situation is further complicated by the political tensions between the
United States and China that escalated during the COVID-19 pandemic and in the wake of the PRC National People’s Congress’ decision
on Hong Kong national security legislation, sanctions imposed by the U.S. Department of Treasury on certain officials of the Hong Kong
Special  Administrative  Region  and  the  central  government  of  the  PRC  and  the  executive  orders  issued  by  the  then  U.S.  President  in
August  2020  that  prohibit  certain  transactions  with  certain  China-based  companies  and  their  respective  subsidiaries.  Rising  trade  and
political tensions could reduce levels of trades, investments, technological exchanges and other economic activities between China and
other  countries,  which  would  have  an  adverse  effect  on  global  economic  conditions,  the  stability  of  global  financial  markets,  and
international trade policies.

While we have not started commercialization of drug candidates, any rising trade and political tensions or unfavorable government
policies on international trade, such as capital controls or tariffs, may affect the demand for our drug products, the competitive position of
our  drug  products,  the  hiring  of  scientists  and  other  research  and  development  personnel,  and  import  or  export  of  raw  materials  in
relation to drug development, or prevent us from selling our drug products in certain countries. In particular, if any new tariffs, legislation
and/or  regulations  are  implemented,  or  if  existing  trade  agreements  are  renegotiated  or,  especially,  if  the  U.S.  government  takes
retaliatory  trade  actions  due  to  the  recent  U.S.-China  trade  and  political  tension,  such  changes  could  have  an  adverse  effect  on  our
business,  financial  condition  and  results  of  operations.  In  addition,  our  results  of  operations  could  be  adversely  affected  if  any  such
tensions or unfavorable government trade policies harm the Chinese economy or the global economy in general.

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If we are classified as a PRC resident enterprise for PRC income tax purposes, such classification could result in unfavorable tax
consequences to us and our non-PRC shareholders or ADS holders.

Under the PRC Enterprise Income Tax Law and its implementation rules, an enterprise established outside of the PRC with “de facto
management  body”  within  China  is  considered  a  “resident  enterprise”  and  will  be  subject  to  the  enterprise  income  tax  on  its  global
income at the rate of 25%. The implementation rules define the term “de facto management body” as the body that exercises full and
substantial control and overall management over the business, productions, personnel, accounts and properties of an enterprise. In 2009,
the  SAT  issued  the  Circular  of  the  State  Administration  of  Taxation  on  Issues  Relating  to  Identification  of  PRC-Controlled  Overseas
Registered Enterprises as Resident Enterprises in Accordance With the De Facto Standards of Organizational Management, or Circular
82, which provides certain specific criteria for determining whether the “de facto management body” of a PRC-controlled enterprise that
is incorporated offshore is located in China. Although this Circular only applies to offshore enterprises controlled by PRC enterprises or
PRC enterprise groups, not those controlled by PRC individuals or foreigners, the criteria set forth in the circular may reflect the SAT’s
general position on how the “de facto management body” text should be applied in determining the tax resident status of all offshore
enterprises. According to Circular 82, an offshore incorporated enterprise controlled by a PRC enterprise or a PRC enterprise group will
be regarded as a PRC tax resident by virtue of having its “de facto management body” in China and will be subject to PRC enterprise
income  tax  on  its  global  income  if  all  of  the  following  conditions  are  met:  (i)  the  primary  location  of  the  day-to-day  operational
management  is  in  China;  (ii)  decisions  relating  to  the  enterprise’s  financial  and  human  resource  matters  are  made  or  are  subject  to
approval by organizations or personnel in China; (iii) the enterprise’s primary assets, accounting books and records, company seals, and
board  and  shareholder  resolutions,  are  located  or  maintained  in  China;  and  (iv)  at  least  50%  of  voting  board  members  or  senior
executives habitually reside in China.

Our PRC counsel, JunHe LLP, has advised us that, based on its understanding of the current PRC Laws and Regulations, as I-Mab
does not meet all of the above conditions and given that neither I-Mab nor any of its PRC subsidiaries has received any notice from the
PRC tax authorities confirming, directly or indirectly, that I-Mab is a PRC resident enterprise for PRC tax income purposes as of the date
of  this  annual  report,  I-Mab  should  not  be  considered  as  a  PRC  resident  enterprise  for  PRC  tax  income  purposes.  However,  the  tax
resident  status  of  an  enterprise  is  subject  to  determination  by  the  PRC  tax  authorities  and  uncertainties  remain  with  respect  to  the
interpretation of the term “de facto management body.” If the PRC tax authorities determine that we are a PRC resident enterprise for
enterprise  income  tax  purposes,  we  could  be  subject  to  PRC  tax  at  a  rate  of  25%  on  our  worldwide  income,  which  could  materially
reduce our net income, and we may be required to withhold a 10% withholding tax from dividends we pay to our shareholders that are
non-resident  enterprises  (including  the  holders  of  our  ADSs).  In  addition,  non-resident  enterprise  shareholders  (including  our  ADS
holders) may be subject to PRC tax at a rate of 10% on gains realized on the sale or other disposition of ADSs or ordinary shares, if such
income is treated as sourced from within China. Furthermore, if we are deemed a PRC resident enterprise, dividends payable to our non-
PRC  individual  shareholders  (including  our  ADS  holders)  and  any  gain  realized  on  the  transfer  of  ADSs  or  ordinary  shares  by  such
shareholders may be subject to PRC tax at a rate of 20% in the case of non-PRC individuals (which in the case of dividends may be
withheld at source) unless a reduced rate is available under an applicable tax treaty. It is unclear whether non-PRC shareholders of our
company would be able to claim the benefits of any tax treaties between their country of tax residence and the PRC in the event that we
are treated as a PRC resident enterprise. Any such tax may reduce the returns on your investment in the ADSs or ordinary shares.

Failure to renew our current leases or locate desirable alternatives for our leased properties could materially and adversely affect our
business.

We lease properties for our offices and laboratories. We may not be able to successfully extend or renew such leases upon expiration
of  the  current  term  on  commercially  reasonable  terms  or  at  all,  and  may  therefore  be  forced  to  relocate  our  affected  operations.  This
could disrupt our operations and result in significant relocation expenses, which could adversely affect our business, financial condition
and results of operations. In addition, we compete with other businesses for premises at certain locations or of desirable sizes. As a result,
even  though  we  could  extend  or  renew  our  leases,  rental  payments  may  significantly  increase  as  a  result  of  the  high  demand  for  the
leased properties. In addition, we may not be able to locate desirable alternative sites for our current leased properties as our business
continues to grow and failure in relocating our affected operations could adversely affect our business and operations.

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Certain of our leasehold interests in leased properties have not been registered with the relevant PRC governmental authorities as
required by relevant PRC laws. The failure to register leasehold interests may expose us to potential fines.

We have not registered certain of our lease agreements with the relevant government authorities. Under the relevant PRC laws and
regulations, we may be required to register and file with the relevant government authority executed leases. The failure to register the
lease agreements for our leased properties will not affect the validity of these lease agreements, but the competent housing authorities
may order us to register the lease agreements in a prescribed period of time and impose a fine ranging from RMB1,000 to RMB10,000
for each non-registered lease if we fail to complete the registration within the prescribed timeframe.

We have granted, and may continue to grant, options and other types of awards under our share incentive plans, which may result in
increased share-based compensation expenses.

We have adopted the Second Amended and Restated 2017 Employee Stock Option Plan (the “2017 Plan”), the Second Amended and
Restated  2018  Employee  Stock  Option  Plan  (the  “2018  Plan”),  the  2019  Share  Incentive  Plan  (the  “2019  Plan”),  the  2020  Share
Incentive Plan (the “2020 Plan”), the 2021 Share Incentive Plan (the “2021 Plan”) and the 2022 Share Incentive Plan (the “2022 Plan”)
for the purpose of granting share-based compensation awards to employees, directors and consultants to incentivize their performance
and align their interests with ours. We recognize expenses in our consolidated financial statements in accordance with U.S. GAAP. As of
March  31,  2023,  the  awards  that  had  been  granted  to  our  directors,  officers,  employees  and  consultants  and  remained  outstanding
included (i) options to purchase an aggregate of 1,748,628 ordinary shares, 1,354,384 ordinary shares, 72,000 ordinary shares, 2,586,302
ordinary shares, 4,142,040 ordinary shares, and 6,672,944 ordinary shares under the 2017 Plan, the 2018 Plan, the 2019 Plan, the 2020
Plan, the 2021 Plan and the 2022 Plan, respectively, excluding options that were forfeited, cancelled, or exercised after the relevant grant
date; and (ii) restricted share units to receive an aggregate of 808,792 ordinary shares under the 2020 Plan, an aggregate of 1,752,194
ordinary shares under the 2021 Plan and an aggregate of 4,883,452 ordinary shares under the 2022 Plan, excluding restricted share units
that were forfeited, cancelled, or vested after the relevant grant date. See “Item 6. Directors, Senior Management and Employees—B.
Compensation—Share Incentive Plans.”

We believe the granting of share-based compensation is of significant importance to our ability to attract and retain key personnel
and employees, and we will continue to grant share-based compensation to employees in the future. As a result, our expenses associated
with share-based compensation may increase, which may have an adverse effect on our results of operations. We may re-evaluate the
vesting schedules, lock-up period, exercise price or other key terms applicable to the grants under our currently effective share incentive
plans from time to time. If we choose to do so, we may experience substantial change in our share-based compensation charges.

Fluctuations  in  exchange  rates  could  have  a  material  and  adverse  effect  on  our  results  of  operations  and  the  value  of  your
investment.

The conversion of RMB into foreign currencies, including U.S. dollars, is based on rates set by the People’s Bank of China. The
RMB has fluctuated against the U.S. dollar, at times significantly and unpredictably. The value of RMB against the U.S. dollar and other
currencies is affected by changes in China’s political and economic conditions and by China’s foreign exchange policies, among other
things. We cannot assure you that RMB will not appreciate or depreciate significantly in value against the U.S. dollar in the future. It is
difficult to predict how market forces or PRC or U.S. government policy may impact the exchange rate between RMB and the U.S. dollar
in the future.

Any  significant  appreciation  or  depreciation  of  RMB  may  materially  and  adversely  affect  our  revenues,  earnings  and  financial
position, and the value of, and any dividends payable on, our ADSs in U.S. dollars. For example, to the extent that we need to convert
U.S. dollars we receive into RMB to pay our operating expenses, appreciation of RMB against the U.S. dollar would have an adverse
effect on the RMB amount we would receive from the conversion. Conversely, a significant depreciation of RMB against the U.S. dollar
may significantly reduce the U.S. dollar equivalent of our earnings, which in turn could adversely affect the price of our ADSs.

Very  limited  hedging  options  are  available  in  China  to  reduce  our  exposure  to  exchange  rate  fluctuations.  To  date,  we  have  not
entered  into  any  hedging  transactions  in  an  effort  to  reduce  our  exposure  to  foreign  currency  exchange  risk.  While  we  may  decide  to
enter into hedging transactions in the future, the availability and effectiveness of these hedges may be limited and we may not be able to
adequately  hedge  our  exposure  or  at  all.  In  addition,  our  currency  exchange  losses  may  be  magnified  by  PRC  exchange  control
regulations that restrict our ability to convert RMB into foreign currency. As a result, fluctuations in exchange rates may have a material
adverse effect on your investment.

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Certain PRC regulations may make it more difficult for us to pursue growth through acquisitions.

The Regulations on Mergers and Acquisitions of Domestic Enterprises by Foreign Investors, or the M&A Rules, adopted by six PRC
regulatory  agencies  in  2006  and  amended  in  2009,  established  additional  procedures  and  requirements  that  could  make  merger  and
acquisition  activities  by  foreign  investors  more  time-consuming  and  complex.  Such  regulation  requires,  among  other  things,  that  the
Ministry of Commerce, or MOFCOM, be notified in advance of any change of control transaction in which a foreign investor acquires
control of a PRC domestic enterprise and involves any of the following circumstances: (i) any important industry is concerned; (ii) such
transaction  involves  factors  that  impact  or  may  impact  national  economic  security;  or  (iii)  such  transaction  will  lead  to  a  change  in
control  of  a  domestic  enterprise  which  holds  a  famous  trademark  or  PRC  time-honored  brand.  Moreover,  the  Anti-Monopoly  Law
promulgated  by  the  Standing  Committee  of  National  People’s  Congress  which  became  effective  in  2008  and  was  revised  in  2022,
requires that the anti-monopoly enforcement body of the State Council must be notified of transactions which are deemed concentrations
(i)  reaching  the  standard  for  notification  as  prescribed  for  by  the  State  Council,  or  (ii)  not  reaching  the  standard  for  notification  but
proved  by  evidence  that  such  concentrations  will  or  may  preclude  or  restrict  competition  and  thus  required  by  the  anti-monopoly
enforcement body of the State Council to undertake the notification, before they can be completed.

We  may  rely  on  dividends  and  other  distributions  on  equity  paid  by  our  PRC  subsidiaries  to  fund  any  cash  and  financing
requirements we may have, and any limitation on the ability of our PRC subsidiaries to make payments to us could have a material
and adverse effect on our ability to conduct our business.

We  are  a  Cayman  Islands  holding  company  and  we  may  rely  on  dividends  and  other  distributions  on  equity  paid  by  our  PRC
subsidiaries for our cash and financing requirements, including the funds necessary to pay dividends and other cash distributions to our
shareholders and service any debt we may incur. If any of our PRC subsidiaries incur debt on its own behalf in the future, the instruments
governing the debt may restrict their ability to pay dividends or make other distributions to us. Under PRC laws and regulations, our PRC
subsidiaries,  each  of  which  is  a  wholly  foreign-owned  enterprise  may  pay  dividends  only  out  of  its  respective  accumulated  profits  as
determined in accordance with PRC accounting standards and regulations. In addition, a wholly foreign-owned enterprise is required to
set aside at least 10% of its after-tax profits each year, if any, to fund a certain statutory reserve fund, until the aggregate amount of such
fund  reaches  50%  of  its  registered  capital.  At  its  discretion,  a  wholly  foreign-owned  enterprise  may  allocate  a  portion  of  its  after-tax
profits based on PRC accounting standards to a staff welfare and bonus fund. The reserve fund and staff welfare and bonus fund cannot
be distributed to us as dividends.

Our PRC subsidiaries generate primarily all of their revenue in RMB, which is not freely convertible into other currencies. As result,

any restriction on currency exchange may limit the ability of our PRC subsidiaries to use their RMB revenues to pay dividends to us.

The PRC government may continue to strengthen its capital controls, and more restrictions and a substantial vetting process may be
put forward by SAFE for cross-border transactions falling under both the current account and the capital account. Any limitation on the
ability of our PRC subsidiaries to pay dividends or make other kinds of payments to us could materially and adversely limit our ability to
grow,  make  investments  or  acquisitions  that  could  be  beneficial  to  our  business,  pay  dividends,  or  otherwise  fund  and  conduct  our
business.

In addition, the PRC Enterprise Income Tax Law and its implementation rules provide that a withholding tax rate of 10% will be
applicable to dividends payable by PRC companies to non-PRC-resident enterprises unless otherwise exempted or reduced according to
treaties  or  arrangements  between  the  PRC  central  government  and  governments  of  other  countries  or  regions  where  the  non-PRC-
resident enterprises are incorporated.

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PRC regulations relating to offshore investment activities by PRC residents may limit our PRC subsidiaries’ ability to change their
registered capital or distribute profits to us or otherwise expose us or our PRC resident beneficial owners to liability and penalties
under PRC laws.

In  July  2014,  SAFE  promulgated  the  Circular  on  Relevant  Issues  Concerning  Foreign  Exchange  Control  on  Domestic  Residents’
Offshore Investment and Financing and Roundtrip Investment Through Special Purpose Vehicles, or SAFE Circular 37. SAFE Circular
37 requires PRC residents (including PRC individuals and PRC corporate entities as well as foreign individuals that are deemed as PRC
residents  for  foreign  exchange  administration  purpose)  to  register  with  SAFE  or  its  local  branches  in  connection  with  their  direct  or
indirect  offshore  investment  activities.  SAFE  Circular  37  further  requires  amendment  to  the  SAFE  registrations  in  the  event  of  any
changes with respect to the basic information of the offshore special purpose vehicle, such as changes of a PRC individual shareholder,
name and operation term, or any significant changes with respect to the offshore special purpose vehicle, such as increase or decrease of
capital contribution, share transfer or exchange, or mergers or divisions. SAFE Circular 37 is applicable to our shareholders who are PRC
residents. If our shareholders who are PRC residents fail to make the required registration or to update the previously filed registration,
our  PRC  subsidiaries  may  be  prohibited  from  distributing  their  profits  or  the  proceeds  from  any  capital  reduction,  share  transfer  or
liquidation to us, and we may also be prohibited from making additional capital contributions into our PRC subsidiaries.

In February 2015, SAFE promulgated a Notice on Further Simplifying and Improving Foreign Exchange Administration Policy on
Direct Investment, or SAFE Notice 13, effective June 2015. Under SAFE Notice 13, applications for foreign exchange registration of
inbound foreign direct investments and outbound overseas direct investments, including those required under SAFE Circular 37, will be
filed with qualified banks instead of SAFE. The qualified banks will directly examine the applications and accept registrations under the
supervision of SAFE.

All of our shareholders who we are aware of being subject to the SAFE regulations have completed the initial registrations with the
local SAFE branch or qualified banks as required by SAFE Circular 37. However, we may not be informed of the identities of all the
PRC residents holding direct or indirect interests in our company, and we cannot provide any assurance that these PRC residents will
comply  with  our  request  to  make  or  obtain  any  applicable  registrations  or  continuously  comply  with  all  requirements  under  SAFE
Circular 37 or other related rules. The failure or inability of the relevant shareholders to comply with the registration procedures set forth
in  these  regulations  may  subject  us  to  fines  and  legal  sanctions,  such  as  restrictions  on  our  cross-border  investment  activities,  on  the
ability of our wholly foreign-owned subsidiaries in China to distribute dividends and the proceeds from any reduction in capital, share
transfer or liquidation to us. Moreover, failure to comply with the various foreign exchange registration requirements described above
could result in liability under PRC law for circumventing applicable foreign exchange restrictions. As a result, our business operations
and our ability to distribute profits could be materially and adversely affected.

Any failure to comply with PRC regulations regarding our employee equity incentive plans may subject the PRC plan participants or
us to fines and other legal or administrative sanctions.

We and our directors, executive officers and other employees who are PRC citizens or who have resided in China for a continuous
period of not less than one year and who will be granted restricted shares or options are subject to the Notice on Issues Concerning the
Foreign Exchange Administration for Domestic Individuals Participating in Stock Incentive Plan of Overseas Publicly Listed Company,
issued by SAFE in February 2012, according to which, employees, directors, supervisors and other management members participating
in any share incentive plan of an overseas publicly listed company who are PRC citizens or who are non-PRC citizens residing in China
for a continuous period of not less than one year, subject to limited exceptions, are required to register with SAFE through a domestic
qualified agent, which could be a PRC subsidiary of such overseas listed company, and complete certain other procedures. In addition, an
overseas entrusted institution must be retained to handle matters in connection with the exercise or sale of stock options and the purchase
or sale of shares and interests. Failure to complete the SAFE registrations may subject them to fines and legal sanctions and may also
limit our ability to make payments under our equity incentive plans or receive dividends or sales proceeds related thereto, or our ability
to  contribute  additional  capital  into  our  wholly  foreign-owned  enterprises  in  China  and  limit  our  wholly  foreign-owned  enterprises’
ability  to  distribute  dividends  to  us.  We  also  face  regulatory  uncertainties  that  could  restrict  our  ability  to  adopt  additional  equity
incentive plans for our directors and employees under PRC law.

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In addition, the SAT has issued circulars concerning employee share options or restricted shares. Under these circulars, employees
working in China who exercise share options, or whose restricted shares vest, will be subject to PRC individual income tax. The PRC
subsidiaries of an overseas listed company have obligations to file documents related to employee share options or restricted shares with
relevant tax authorities and to withhold individual income taxes of those employees related to their share options or restricted shares. If
the  employees  fail  to  pay,  or  the  PRC  subsidiaries  fail  to  withhold  applicable  income  taxes,  the  PRC  subsidiaries  may  face  sanctions
imposed by the tax authorities or other PRC government authorities.

PRC  regulation  of  loans  to  and  direct  investment  in  PRC  entities  by  offshore  holding  companies  and  governmental  control  of
currency conversion may delay or prevent us from making loans to our PRC subsidiaries or making additional capital contributions
to our wholly foreign-owned subsidiaries in China, which could materially and adversely affect our liquidity and our ability to fund
and expand our business.

We are an offshore holding company conducting our operations in China through our PRC subsidiaries. We may make loans to our
PRC subsidiaries subject to the approval from governmental authorities and limitation on the available loan amount, or we may make
additional capital contributions to our wholly foreign-owned subsidiaries in China.

Any loans to our wholly foreign-owned subsidiaries in China, which are treated as foreign-invested enterprises under PRC law, are
subject to PRC regulations and foreign exchange loan registrations. For example, loans by us to our wholly foreign-owned subsidiaries in
China to finance their activities cannot exceed statutory limits and must be registered with the local counterpart of SAFE. In addition, a
foreign-invested enterprise can only use its capital pursuant to the principle of authenticity and self-use within its business scope. The
capital of a foreign-invested enterprise cannot be used for the following purposes: (i) directly or indirectly used for payment beyond the
business  scope  of  the  enterprises  or  the  payment  prohibited  by  relevant  laws  and  regulations;  (ii)  directly  or  indirectly  used  for
investment  in  securities  or  investments  other  than  banks’  principal-secured  products  unless  otherwise  provided  by  relevant  laws  and
regulations;  (iii)  the  granting  of  loans  to  non-affiliated  enterprises,  except  where  it  is  expressly  permitted  in  the  business  license;  and
(iv)  paying  the  expenses  related  to  the  purchase  of  real  estate  that  is  not  for  self-use  (except  for  the  foreign-invested  real  estate
enterprises).

SAFE  promulgated  the  Notice  of  the  State  Administration  of  Foreign  Exchange  on  Reforming  the  Administration  of  Foreign
Exchange  Settlement  of  Capital  of  Foreign-invested  Enterprises,  or  SAFE  Circular  19,  effective  June  2015,  in  replacement  of  the
Circular on the Relevant Operating Issues Concerning the Improvement of the Administration of the Payment and Settlement of Foreign
Currency  Capital  of  Foreign-Invested  Enterprises,  the  Notice  from  the  State  Administration  of  Foreign  Exchange  on  Relevant  Issues
Concerning Strengthening the Administration of Foreign Exchange Businesses, and the Circular on Further Clarification and Regulation
of the Issues Concerning the Administration of Certain Capital Account Foreign Exchange Businesses. According to SAFE Circular 19,
the  flow  and  use  of  RMB  capital  converted  from  foreign  currency-denominated  registered  capital  of  a  foreign-invested  company  is
regulated such that RMB capital may not be used for the issuance of RMB entrusted loans, the repayment of inter-enterprise loans or the
repayment of banks loans that have been transferred to a third party. Although SAFE Circular 19 allows RMB capital converted from
foreign currency-denominated registered capital of a foreign-invested enterprise to be used for equity investments within China, it also
reiterates the principle that RMB converted from the foreign currency-denominated capital of a foreign-invested company may not be
directly or indirectly used for purposes beyond its business scope. Thus, it is unclear whether SAFE will permit such capital to be used
for equity investments in China in actual practice. SAFE promulgated the Notice of the State Administration of Foreign Exchange on
Reforming and Standardizing the Foreign Exchange Settlement Management Policy of Capital Account, or SAFE Circular 16, effective
on June 9, 2016, which reiterates some of the rules set forth in SAFE Circular 19, but changes the prohibition against using RMB capital
converted  from  foreign  currency-denominated  registered  capital  of  a  foreign-invested  company  to  issue  RMB  entrusted  loans  to  a
prohibition  against  using  such  capital  to  issue  loans  to  non-associated  enterprises  unless  expressly  permitted  in  the  business  license.
Violations of SAFE Circular 19 and SAFE Circular 16 could result in administrative penalties. SAFE Circular 19 and SAFE Circular
16 may significantly limit our ability to transfer any foreign currency we hold, including the net proceeds from our initial public offering,
to our PRC subsidiaries, which may adversely affect our liquidity and our ability to fund and expand our business in China.

In  light  of  the  various  requirements  imposed  by  PRC  regulations  on  loans  to  and  direct  investment  in  PRC  entities  by  offshore
holding companies, we cannot assure you that we will be able to complete the necessary government registrations or obtain the necessary
government approvals on a timely basis, if at all, with respect to future loans to our PRC subsidiaries or future capital contributions by us
to our wholly foreign-owned subsidiaries in China. As a result, uncertainties exist as to our ability to provide prompt financial support to
our PRC subsidiaries when needed. If we fail to complete such registrations or obtain such approvals, our ability to use foreign currency,
including the proceeds we received from our initial public offering, to capitalize or otherwise fund our PRC operations may be negatively
affected, which could materially and adversely affect our liquidity and our ability to fund and expand our business.

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We and our shareholders face uncertainties with respect to indirect transfers of equity interests in PRC resident enterprises or other
assets attributable to a PRC establishment of a non-PRC company.

On February 3, 2015, the SAT issued the Bulletin on Issues of Enterprise Income Tax and Indirect Transfers of Assets by Non-PRC
Resident Enterprises, or Bulletin 7. Pursuant to Bulletin 7, an “indirect transfer” of “PRC taxable assets,” including equity interests in a
PRC resident enterprise, by non-PRC resident enterprises may be recharacterized and treated as a direct transfer of PRC taxable assets, if
such  arrangement  does  not  have  a  reasonable  commercial  purpose  and  was  established  for  the  purpose  of  avoiding  payment  of  PRC
enterprise  income  tax.  As  a  result,  gains  derived  from  such  indirect  transfer  may  be  subject  to  PRC  enterprise  income  tax.  When
determining whether there is a “reasonable commercial purpose” of the transaction arrangement, factors to be taken into consideration
include: (i) whether the main value of the equity interest of the relevant offshore enterprise derives from PRC taxable assets; (ii) whether
the assets of the relevant offshore enterprise mainly consist of direct or indirect investment in China or if its income mainly derives from
China; (iii) whether the offshore enterprise and its subsidiaries directly or indirectly holding PRC taxable assets have real commercial
nature which is evidenced by their actual function and risk exposure; (iv) the duration of existence of the shareholders, business model
and organizational structure of the overseas enterprise; (v) the income tax payable overseas for the transaction of indirect transfer of PRC
taxable assets; (vi) the replicability of the transaction by direct transfer of PRC taxable assets; and (vii) the tax situation of such indirect
transfer  and  applicable  tax  treaties  or  similar  arrangements.  On  October  17,  2017,  the  SAT  issued  the  Announcement  of  the  State
Administration  of  Taxation  on  Issues  Concerning  the  Withholding  of  Non-resident  Enterprise  Income  Tax  at  Source,  or  Bulletin  37,
which came into effect on December 1, 2017. Bulletin 37 further clarifies the practice and procedure of the withholding of non-resident
enterprise income tax.

Late payment of applicable tax will subject the transferor to default interest. Gains derived from the sale of shares by investors are
not subject to the PRC enterprise income tax pursuant to Bulletin 7 where such shares were acquired in a transaction through a public
stock exchange. However, the sale of ADSs or ordinary shares by a non-PRC resident enterprise outside a public stock exchange may be
subject to PRC enterprise income tax under Bulletin 7.

There are uncertainties as to the application of Bulletin 7. Bulletin 7 may be determined by the tax authorities to be applicable to the
sale of the shares of our offshore subsidiaries or investments where PRC taxable assets are involved. The transferors and transferees may
be subject to the tax filing and withholding or tax payment obligation, while our PRC subsidiaries may be requested to assist in the filing.
Furthermore, we, our non-resident enterprises and PRC subsidiaries may be required to spend valuable resources to comply with Bulletin
7 or to establish that we and our non-resident enterprises should not be taxed under Bulletin 7, for our previous and future restructuring
or  disposal  of  shares  of  our  offshore  subsidiaries,  which  may  have  a  material  adverse  effect  on  our  financial  condition  and  results  of
operations.

The PRC tax authorities have the discretion under Bulletin 7 to make adjustments to the taxable capital gains based on the difference
between the fair value of the taxable assets transferred and the cost of investment. If the PRC tax authorities make adjustments to the
taxable  income  of  the  transactions  under  Bulletin  7  /  Bulletin  37,  our  income  tax  costs  associated  with  such  potential  acquisitions  or
disposals will increase, which may have an adverse effect on our financial condition and results of operations.

Recent  litigation  and  negative  publicity  surrounding  China-based  companies  listed  in  the  U.S.  may  result  in  increased  regulatory
scrutiny  of  us  and  negatively  impact  the  trading  price  of  the  ADSs  and  could  have  a  material  adverse  effect  upon  our  business,
including our results of operations, financial condition, cash flows and prospects.

We  believe  that  litigation  and  negative  publicity  surrounding  companies  with  operations  in  China  that  are  listed  in  the  U.S.  have
negatively impacted stock prices for such companies. Various equity-based research organizations have published reports on China-based
companies  after  examining,  among  other  things,  their  corporate  governance  practices,  related  party  transactions,  sales  practices  and
financial  statements  that  have  led  to  special  investigations  and  stock  suspensions  on  national  exchanges.  Any  similar  scrutiny  of  us,
regardless of its lack of merit, could result in a diversion of management resources and energy, potential costs to defend ourselves against
rumors,  decreases  and  volatility  in  the  ADS  trading  price,  and  increased  directors  and  officers  insurance  premiums  and  could  have  a
material adverse effect upon our business, including our results of operations, financial condition, cash flows and prospects.

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General Risks Related to Our ADSs

The trading price of our ADSs may be volatile, which could result in substantial losses to you.

For  the  period  from  January  1,  2022  to  the  date  of  this  annual  report,  the  trading  price  of  our  ADSs  ranged  from  US$2.73  to
US$47.75 per ADS. The trading price of our ADSs can be volatile and fluctuate widely in response to a variety of factors, many of which
are beyond our control. In addition, the performance and fluctuation of the market prices of other companies with business operations
located  mainly  in  the  PRC  that  have  listed  their  securities  in  the  United  States  may  affect  the  volatility  in  the  price  of  and  trading
volumes  for  our  ADSs.  Some  of  these  companies  have  experienced  significant  volatility.  The  trading  performances  of  these  PRC
companies’  securities  may  affect  the  overall  investor  sentiment  towards  other  PRC  companies  listed  in  the  United  States  and
consequently may impact the trading performance of our ADSs.

In addition to market and industry factors, the price and trading volume for our ADSs may be highly volatile for specific business

reasons, including:

● announcements of regulatory approval or a complete response letter, or specific label indications or patient populations for a

drug’s use, or changes or delays in the regulatory review process;

● announcements  of  therapeutic  innovations,  new  products,  acquisitions,  strategic  relationships,  joint  ventures  or  capital

commitments by us or our competitors;

● adverse  actions  taken  by  regulatory  agencies  with  respect  to  our  clinical  trials,  manufacturing  supply  chain  or  sales  and

marketing activities;

● any adverse changes to our relationship with manufacturers or suppliers;

● the results of our testing and clinical trials;

● the results of our efforts to acquire or license additional drug candidates;

● variations in the level of expenses related to our existing drugs and drug candidates or pre-clinical, clinical development and

commercialization programs;

● any intellectual property infringement actions in which we may become involved;

● announcements concerning our competitors or the pharmaceutical industry in general;

● fluctuations in product revenue, sales and marketing expenses and profitability; manufacture, supply or distribution shortages;

● variations in our results of operations;

● announcements  about  our  results  of  operations  that  are  not  in  line  with  analyst  expectations,  the  risk  of  which  is  enhanced

because it is our policy not to give guidance on results of operations;

● publication  of  operating  or  industry  metrics  by  third  parties,  including  government  statistical  agencies,  that  differ  from

expectations of industry or financial analysts;

● changes in financial estimates by securities research analysts;

● media reports, whether or not true, about our business, our competitors or our industry;

● additions to or departures of our management;

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● fluctuations of exchange rates between the RMB and the U.S. dollar;

● release or expiry of lock-up or other transfer restrictions on our outstanding ordinary shares or ADSs;

● sales  or  perceived  potential  sales  of  additional  ordinary  shares  or  ADSs  by  us,  our  executive  officers  and  directors  or  our

shareholders;

● any share repurchase program;

● general economic and market conditions and overall fluctuations in the U.S. equity markets;

● changes in accounting principles; and

● changes or developments in the PRC or global regulatory environment.

In  addition,  the  stock  market,  in  general,  and  pharmaceutical  and  biotechnology  companies  have  experienced  extreme  price  and
volume fluctuations that have often been unrelated or disproportionate to the operating performance of these companies. Broad market
and industry factors may negatively affect the market price of our ADSs, regardless of our actual operating performance. Further, the
current  volatility  in  the  financial  markets  and  related  factors  beyond  our  control  may  cause  the  market  price  of  our  ADSs  to  decline
rapidly and unexpectedly.

We may face an increased risk of securities class action litigation.

Historically, securities class action litigation has often been brought against a company following a significant decline in the market
price of its securities. This risk is especially relevant for us because biotechnology and biopharmaceutical companies have experienced
significant  share  price  volatilities  in  recent  years.  If  we  were  to  face  lawsuits,  it  could  lead  to  substantial  costs  and  a  distraction  of
management’s attention and resources, which could harm our business.

We  cannot  guarantee  that  any  share  repurchase  program  will  be  fully  consummated  or  that  any  share  repurchase  program  will
enhance  long-term  shareholder  value,  and  share  repurchases  could  increase  the  volatility  of  the  price  of  our  ADSs  and  could
diminish our cash reserves.

Our  board  of  directors  has  historically  authorized  several  share  repurchase  programs,  pursuant  to  which  we  were  authorized  to
repurchase our own ordinary shares, in the form of ADSs, with an aggregate value of up to certain amount during certain period. We
implemented share repurchases pursuant to those authorized share repurchase programs from time to time. Our board of directors will
review  the  implementation  of  share  repurchases  periodically  and  may  authorize  adjustment  of  its  terms  and  size.  In  addition,  certain
senior management members and executive personnel also executed share purchases from the open market in the first quarter of 2022.
For  details  of  the  purchase  of  equity  securities  by  us  and  affiliated  purchasers,  see  “Item  16E.  Purchases  of  Equity  Securities  by  the
Issuer  and  Affiliated  Purchasers.”  The  timing  and  dollar  amount  of  share  repurchase  and  share  purchase  transactions  could  affect  the
price of our ADSs and increase volatility. Nevertheless, there can be no assurance that any of our share repurchase program will be fully
consummated or that such share repurchase program could enhance long-term shareholder value.

If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, or if they
adversely change their recommendations regarding our ADSs, the market price for our ADSs and trading volume could decline.

The trading market for our ADSs will depend in part on the research and reports that securities or industry analysts publish about us
or  our  business.  If  research  analysts  do  not  establish  and  maintain  adequate  research  coverage  or  if  one  or  more  of  the  analysts  who
covers  us  downgrades  our  ADSs  or  publishes  inaccurate  or  unfavorable  research  about  our  business,  the  market  price  for  our  ADSs
would likely decline. If one or more of these analysts cease coverage of our company or fail to publish reports on us regularly, we could
lose visibility in the financial markets, which, in turn, could cause the market price or trading volume for our ADSs to decline.

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Because we do not expect to pay dividends in the foreseeable future, you must rely on price appreciation of our ADSs for return on
your investment.

We currently intend to retain most, if not all, of our available funds and any future earnings to fund the development and growth of
our business. As a result, we do not expect to pay any cash dividends in the foreseeable future. Therefore, you should not rely on an
investment in our ADSs as a source for any future dividend income.

Our  board  of  directors  has  complete  discretion  as  to  whether  to  distribute  dividends,  subject  to  our  memorandum  and  articles  of
association and certain requirements of Cayman Islands law. In addition, our shareholders may by ordinary resolution declare a dividend,
but no dividend may exceed the amount recommended by our directors. Under Cayman Islands law, a Cayman Islands company may pay
a dividend out of either profit or share premium account of the company, provided that in no circumstances may a dividend be paid out of
share premium if this would result in the company being unable to pay its debts as they fall due in the ordinary course of business. Even
if our board of directors decides to declare and pay dividends, the timing, amount and form of future dividends, if any, will depend on our
future results of operations and cash flow, our capital requirements and surplus, the amount of distributions, if any, received by us from
our  subsidiaries,  our  financial  condition,  contractual  restrictions  and  other  factors  deemed  relevant  by  our  board  of  directors.
Accordingly,  the  return  on  your  investment  in  our  ADSs  will  likely  depend  entirely  upon  any  future  price  appreciation  of  our  ADSs.
There is no guarantee that our ADSs will appreciate in value or even maintain the price at which you purchased the ADSs. You may not
realize a return on your investment in our ADSs and you may even lose your entire investment in our ADSs.

Substantial future sales or perceived potential sales of our ADSs in the public market could cause the price of our ADSs to decline.

Sales of substantial amounts of our ADSs in the public market, or the perception that these sales could occur, could adversely affect
the  market  price  of  our  ADSs  and  could  materially  impair  our  ability  to  raise  capital  through  equity  offerings  in  the  future.  On
December  14,  2020,  the  SEC  declared  effective  a  registration  statement  on  Form  F-1,  under  which  the  selling  shareholders  identified
therein may offer, from time to time, up to 25,123,751 ordinary shares, including ordinary shares represented by ADSs of our company.
On March 23, 2021, the SEC declared effective a post-effective amendment to this registration statement on Form F-1 that terminates the
effectiveness  of  this  registration  statement  and  removes  from  registration  all  securities  registered  but  not  sold  under  this  registration
statement. On March 19, 2021, we filed a prospectus supplement as part of a registration statement on Form F-3 (File No. 333-252793),
under which the selling shareholders identified therein may offer, from time to time, up to 19,050,555 ordinary shares, including ordinary
shares  represented  by  ADSs  of  our  company.  On  March  31,  2022,  we  filed  another  prospectus  supplement  as  part  of  a  registration
statement on Form F-3 (File No. 333-252793), under which the selling shareholders identified therein may offer, from time to time, up to
37,749,951  ordinary  shares,  including  ordinary  shares  represented  by  ADSs  of  our  company.  Remaining  ordinary  shares  issued  and
outstanding will be available for sale in the public market subject to volume and other restrictions as applicable under Rules 144 and 701
under the Securities Act. Certain holders of our ordinary shares may cause us to register under the Securities Act the sale of their shares.
Registration of these shares under the Securities Act would result in ADSs representing these shares becoming freely tradable without
restriction under the Securities Act immediately upon the effectiveness of the registration. Sales of these registered shares in the form of
ADSs in the public market, or sales of securities held by our significant shareholders or any other shareholder or the availability of these
securities for future sale could cause the price of our ADSs to decline.

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The voting rights of holders of ADSs are limited by the terms of the deposit agreement, and you may not be able to exercise the same
rights as our shareholders.

Holders of ADSs do not have the same rights as our shareholders. As a holder of our ADSs, you will not have any direct right to
attend general meetings of our shareholders or to cast any votes at such meetings. As an ADS holder, you will only be able to exercise
the voting rights carried by the underlying ordinary shares indirectly by giving voting instructions to the depositary in accordance with
the provisions of the deposit agreement. Under the deposit agreement, you may vote only by giving voting instructions to the depositary.
Upon receipt of your voting instructions, the depositary will try, as far as is practicable, to vote the ordinary shares underlying your ADSs
in accordance with your instructions. If we ask for your instructions, then upon receipt of your voting instructions, the depositary will try
to  vote  the  underlying  ordinary  shares  in  accordance  with  these  instructions.  If  we  do  not  instruct  the  depositary  to  ask  for  your
instructions, the depositary may still vote in accordance with instructions you give, but it is not required to do so. You will not be able to
directly  exercise  your  right  to  vote  with  respect  to  the  underlying  ordinary  shares  unless  you  withdraw  the  shares,  and  become  the
registered  holder  of  such  shares  prior  to  the  record  date  for  the  general  meeting.  When  a  general  meeting  is  convened,  you  may  not
receive sufficient advance notice of the meeting to withdraw the shares underlying your ADSs and become the registered holder of such
shares to allow you to attend the general meeting and to vote directly with respect to any specific matter or resolution to be considered
and voted upon at the general meeting. In addition, under our memorandum and articles of association, for the purposes of determining
those shareholders who are entitled to attend and vote at any general meeting, our directors may close our register of members and/or fix
in advance a record date for such meeting, and such closure of our register of members or the setting of such a record date may prevent
you from withdrawing the ordinary shares underlying your ADSs and becoming the registered holder of such shares prior to the record
date, so that you would not be able to attend the general meeting or to vote directly. If we ask for your instructions, the depositary will
notify you of the upcoming vote and will arrange to deliver our voting materials to you. We have agreed to give the depositary notice of
shareholder  meetings  sufficiently  in  advance  of  such  meetings.  Nevertheless,  we  cannot  assure  you  that  you  will  receive  the  voting
materials  in  time  to  ensure  that  you  can  instruct  the  depositary  to  vote  the  underlying  ordinary  shares  represented  by  your  ADSs.  In
addition, the depositary and its agents are not responsible for failing to carry out voting instructions or for their manner of carrying out
your voting instructions. This means that you may not be able to exercise your right to direct how the shares underlying your ADSs are
voted,  and  you  may  have  no  legal  remedy  if  the  shares  underlying  your  ADSs  are  not  voted  as  you  requested.  In  addition,  in  your
capacity as an ADS holder, you will not be able to call a shareholders’ meeting. Except in limited circumstances, the depositary for our
ADSs will give us a discretionary proxy to vote the ordinary shares underlying your ADSs if you do not vote at shareholders’ meetings,
which could adversely affect your interests.

Under the deposit agreement for the ADSs, if you do not vote, the depositary will give us a discretionary proxy to vote the ordinary

shares underlying your ADSs at shareholders’ meetings unless:

● we have instructed the depositary that we do not wish a discretionary proxy to be given;

● we have informed the depositary that there is substantial opposition as to a matter to be voted on at the meeting;

● a matter to be voted on at the meeting would have an adverse impact on shareholders; or

● the voting at the meeting is to be made on a show of hands.

The effect of this discretionary proxy is that you cannot prevent our ordinary shares underlying your ADSs from being voted, except
under the circumstances described above. This may make it more difficult for shareholders to influence the management of our company.
Holders of our ordinary shares are not subject to this discretionary proxy.

Your right to participate in any future rights offerings may be limited, which may cause dilution to your holdings.

We may from time to time distribute rights to our shareholders, including rights to acquire our securities. However, we cannot make
rights  available  to  you  in  the  United  States  unless  we  register  both  the  rights  and  the  securities  to  which  the  rights  relate  under  the
Securities Act or an exemption from the registration requirements is available. Under the deposit agreement, the depositary will not make
rights available to you unless both the rights and the underlying securities to be distributed to ADS holders are either registered under the
Securities  Act  or  exempt  from  registration  under  the  Securities  Act.  We  are  under  no  obligation  to  file  a  registration  statement  with
respect to any such rights or securities or to endeavor to cause such a registration statement to be declared effective and we may not be
able to establish a necessary exemption from registration under the Securities Act. Accordingly, you may be unable to participate in our
rights offerings and may experience dilution in your holdings.

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You may not receive cash dividends if the depositary decides it is impractical to make them available to you.

The depositary will pay cash dividends on the ADSs only to the extent that we decide to distribute dividends on our ordinary shares
or other deposited securities, and we do not have any present plan to pay any cash dividends on our ordinary shares in the foreseeable
future.  To  the  extent  that  there  is  a  distribution,  the  depositary  of  our  ADSs  has  agreed  to  pay  to  you  the  cash  dividends  or  other
distributions  it  or  the  custodian  receives  on  our  ordinary  shares  or  other  deposited  securities  after  deducting  its  fees  and  expenses
pursuant  to  the  deposit  agreement.  You  will  receive  these  distributions  in  proportion  to  the  number  of  ordinary  shares  your  ADSs
represent. However, the depositary may, at its discretion, decide that it is inequitable or impractical to make a distribution available to
any holders of ADSs. For example, the depositary may determine that it is not practicable to distribute certain property through the mail,
or  that  the  value  of  certain  distributions  may  be  less  than  the  cost  of  mailing  them.  In  these  cases,  the  depositary  may  decide  not  to
distribute such property to you.

You may be subject to limitations on transfer of your ADSs.

Your ADSs are transferable on the books of the depositary. However, the depositary may close its transfer books at any time or from
time to time when it deems expedient in connection with the performance of its duties. The depositary may close its books from time to
time for a number of reasons, including in connection with corporate events such as a rights offering, during which time the depositary
needs  to  maintain  an  exact  number  of  ADS  holders  on  its  books  for  a  specified  period.  The  depositary  may  also  close  its  books  in
emergencies,  and  on  weekends  and  public  holidays.  In  addition,  the  depositary  may  refuse  to  deliver,  transfer  or  register  transfers  of
ADSs generally when our books or the books of the depositary are closed, or at any time if we or the depositary deems it advisable to do
so because of any requirement of law or of any government or governmental body, or under any provision of the deposit agreement, or
for any other reason.

Certain judgments obtained against us by our shareholders may not be enforceable.

We  are  an  exempted  company  incorporated  under  the  laws  of  the  Cayman  Islands.  We  conduct  our  operations  in  China  and
substantially all of our assets are located in China. In addition, our directors and executive officers, and some of the experts named in this
annual report, reside within China, and most of the assets of these persons are located within China. As a result, it may be difficult or
impossible for you to bring an action against us or against these individuals in the United States in the event that you believe that your
rights have been infringed under the U.S. federal securities laws or otherwise. Even if you are successful in bringing an action of this
kind, the laws of the Cayman Islands and of the PRC may render you unable to enforce a judgment against our assets or the assets of our
directors and officers.

ADSs holders may not be entitled to a jury trial with respect to claims arising under the deposit agreement, which could result in less
favorable outcomes to the plaintiff(s) in any such action.

The  deposit  agreement  governing  the  ADSs  representing  our  ordinary  shares  provides  that,  subject  to  the  depositary’s  right  to
require  a  claim  to  be  submitted  to  the  federal  or  state  courts  in  the  City  of  New  York  have  jurisdiction  to  hear  and  determine  claims
arising under the deposit agreement and in that regard, to the fullest extent permitted by law, ADS holders waive the right to a jury trial
of  any  claim  they  may  have  against  us  or  the  depositary  arising  out  of  or  relating  to  our  shares,  the  ADSs  or  the  deposit  agreement,
including  any  claim  under  the  U.S.  federal  securities  laws.  Also,  we  may  amend  or  terminate  the  deposit  agreement  without  your
consent.  If  you  continue  to  hold  your  ADSs  after  an  amendment  to  the  deposit  agreement,  you  agree  to  be  bound  by  the  deposit
agreement as amended.

If we or the depositary were to oppose a jury trial demand based on such waiver, the court would determine whether the waiver was
enforceable  in  the  facts  and  circumstances  of  that  case  in  accordance  with  applicable  state  and  federal  law,  including  whether  a  party
knowingly, intelligently and voluntarily waived the right to a jury trial. The waiver to right to a jury trial of the deposit agreement is not
intended to be deemed a waiver by any holder or beneficial owner of ADSs of our or the depositary’s compliance with the U.S. federal
securities laws and the rules and regulations promulgated thereunder.

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If  you  or  any  other  holders  or  beneficial  owners  of  ADSs  bring  a  claim  against  us  or  the  depositary  in  connection  with  matters
arising  under  the  deposit  agreement  or  the  ADSs,  including  claims  under  U.S.  federal  securities  laws,  you  or  such  other  holder  or
beneficial owner may not be entitled to a jury trial with respect to such claims, which may have the effect of limiting and discouraging
lawsuits against us and/or the depositary. If a lawsuit is brought against us and/or the depositary under the deposit agreement, it may be
heard only by a judge or justice of the applicable trial court, in which the trial would be conducted according to different civil procedures
and  may  result  in  different  outcomes  than  a  trial  by  jury  would  have  had,  including  results  that  could  be  less  favorable  to  the
plaintiff(s) in any such action.

Nevertheless,  if  this  jury  trial  waiver  provision  is  not  enforced,  to  the  extent  a  court  action  proceeds,  it  would  proceed  under  the
terms  of  the  deposit  agreement  with  a  jury  trial.  No  condition,  stipulation  or  provision  of  the  deposit  agreement  or  ADSs  serves  as  a
waiver by any holder or beneficial owner of ADSs or by us or the depositary of compliance with any substantive provision of the U.S.
federal securities laws and the rules and regulations promulgated thereunder.

You  may  face  difficulties  in  protecting  your  interests,  and  your  ability  to  protect  your  rights  through  U.S.  courts  may  be  limited,
because we are incorporated under Cayman Islands law.

We are an exempted company incorporated under the laws of the Cayman Islands with limited liability. Our corporate affairs are
governed by our memorandum and articles of association, the Companies Act, Cap. 22 (Act 3 of 1961, as consolidated and revised) of
the Cayman Islands, which we refer to as the Companies Act, and the common law of the Cayman Islands. The rights of shareholders to
take  action  against  our  directors,  actions  by  our  minority  shareholders  and  the  fiduciary  duties  of  our  directors  to  us  under  Cayman
Islands law are to a large extent governed by the common law of the Cayman Islands. The common law of the Cayman Islands is derived
in part from comparatively limited judicial precedent in the Cayman Islands as well as from the common law of England, the decisions of
whose courts are of persuasive authority, but are not binding, on a court in the Cayman Islands. The rights of our shareholders and the
fiduciary  duties  of  our  directors  under  Cayman  Islands  law  are  not  as  clearly  established  as  they  would  be  under  statutes  or  judicial
precedent in some jurisdictions in the United States. In particular, the Cayman Islands has a less developed body of securities laws than
the United States. Some U.S. states, such as Delaware, have more fully developed and judicially interpreted bodies of corporate law than
the Cayman Islands. In addition, Cayman Islands companies may not have standing to initiate a shareholder derivative action in a federal
court of the United States.

Shareholders of Cayman Islands exempted companies like us have no general rights under Cayman Islands law to inspect corporate
records or to obtain copies of lists of shareholders of these companies. Our directors have discretion under our articles of association to
determine whether or not, and under what conditions, our corporate records may be inspected by our shareholders, but are not obliged to
make them available to our shareholders. This may make it more difficult for you to obtain the information needed to establish any facts
necessary for a shareholder motion or to solicit proxies from other shareholders in connection with a proxy contest.

As a result of all of the above, our public shareholders may have more difficulty in protecting their interests in the face of actions
taken  by  management,  members  of  the  board  of  directors  or  controlling  shareholders  than  they  would  as  public  shareholders  of  a
company incorporated in the United States.

Our memorandum and articles of association contains anti-takeover provisions that could discourage a third party from acquiring us
and adversely affect the rights of holders of our ordinary shares and the ADSs.

Our memorandum and articles of association contains provisions to limit the ability of others to acquire control of our company or
cause  us  to  engage  in  change  of  control  transactions.  These  provisions  could  have  the  effect  of  depriving  our  shareholders  of  an
opportunity to sell their shares at a premium over prevailing market prices by discouraging third parties from seeking to obtain control of
our company in a tender offer or similar transaction. Our board of directors has the authority to issue preferred shares in one or more
series  and  to  fix  their  designations,  powers,  preferences,  privileges,  and  relative  participating,  optional  or  special  rights  and  the
qualifications, limitations or restrictions, including dividend rights, conversion rights, voting rights, terms of redemption and liquidation
preferences, any or all of which may be greater than the rights associated with our ordinary shares, in the form of ADS or otherwise.
Preferred  shares  could  be  issued  with  terms  calculated  to  delay  or  prevent  a  change  in  control  of  our  company  or  make  removal  of
management more difficult. If our board of directors decides to issue preferred shares, the price of our ADSs may fall and the voting and
other rights of the holders of our ordinary shares and ADSs may be materially and adversely affected.

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We are a foreign private issuer within the meaning of the rules under the Exchange Act, and as such we are exempt from certain
provisions applicable to U.S. domestic public companies.

Because  we  qualify  as  a  foreign  private  issuer  under  the  Exchange  Act,  we  are  exempt  from  certain  provisions  of  the  securities

rules and regulations in the United States that are applicable to U.S. domestic issuers, including:

● the  rules  under  the  Exchange  Act  requiring  the  filing  with  the  SEC  of  quarterly  reports  on  Form  10-Q  or  current  reports  on

Form 8-K;

● the  sections  of  the  Exchange  Act  regulating  the  solicitation  of  proxies,  consents,  or  authorizations  in  respect  of  a  security

registered under the Exchange Act;

● the  sections  of  the  Exchange  Act  requiring  insiders  to  file  public  reports  of  their  stock  ownership  and  trading  activities  and

liability for insiders who profit from trades made in a short period of time; and

● the selective disclosure rules by issuers of material nonpublic information under Regulation FD promulgated by SEC.

We are required to file an annual report on Form 20-F within four months of the end of each fiscal year. In addition, we intend to
publish our results on a quarterly basis as press releases, distributed pursuant to the rules and regulations of the Nasdaq Stock Market.
Press releases relating to financial results and material events will also be furnished to the SEC on Form 6-K. However, the information
we are required to file with or furnish to the SEC will be less extensive and less timely compared to that required to be filed with the SEC
by U.S. domestic issuers. As a result, you may not be afforded the same protections or information that would be made available to you
were you investing in a U.S. domestic issuer.

As an exempted company incorporated in the Cayman Islands, we are permitted to adopt certain home country practices in relation to
corporate  governance  matters  that  differ  significantly  from  the  Nasdaq  Stock  Market’s  corporate  governance  requirements;  these
practices  may  afford  less  protection  to  shareholders  than  they  would  enjoy  if  we  complied  fully  with  the  Nasdaq  Stock  Market’s
corporate governance requirements.

As  a  Cayman  Islands  company  listed  on  the  Nasdaq  Stock  Market,  we  are  subject  to  the  Nasdaq  Stock  Market’s  corporate
governance  requirements.  However,  the  Nasdaq  Stock  Market  rules  permit  a  foreign  private  issuer  like  us  to  follow  the  corporate
governance practices of its home country. Certain corporate governance practices in the Cayman Islands, which is our home country, may
differ significantly from the Nasdaq Stock Market’s corporate governance requirements. For example, neither the Companies Act nor our
memorandum and articles of association requires a majority of our directors to be independent and we could include non-independent
directors as members of our compensation committee and nominating committee, and our independent directors would not necessarily
hold regularly scheduled meetings at which only independent directors are present. Additionally, our home country practices provide that
shareholder approval may not be required when a plan or other equity compensation arrangement is established or materially amended
and that we are not required to hold an annual general meeting of shareholders no later than one year after the end of its fiscal year-end.
As we have chosen, or may from time to time to choose, to follow home country practice exemptions with respect to certain corporate
matters, such as the ones mentioned above, our shareholders may be afforded less protection than they otherwise would under the Nasdaq
Stock Market’s corporate governance requirements applicable to U.S. domestic issuers. See also “Item 16G. Corporate Governance.”

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We believe that we were a passive foreign investment company, or PFIC, for U.S. federal income tax purposes for the taxable year
ended December 31, 2022, which could subject U.S. investors in our ADSs or ordinary shares to significant adverse U.S. income tax
consequences.

We will be classified as a passive foreign investment company, or PFIC, for any taxable year if either (i) 75% or more of our gross
income for such year consists of certain types of “passive” income or (ii) 50% or more of the value of our assets (generally determined
on the basis of quarterly average) during such year produce or are held for the production of passive income. Based upon the nature and
composition of our assets (in particular, the retention of substantial amounts of cash and investments), and the market price of our ADSs,
we believe that we were a PFIC for the taxable year ended December 31, 2022 and we will likely be a PFIC for our current taxable year
unless  the  market  price  of  our  ADSs  increases  and/or  we  invest  a  substantial  amount  of  the  cash  and  other  passive  assets  we  hold  in
assets that produce or are held for the production of active income.

If we are a PFIC in any taxable year, a U.S. Holder (as defined in “Item 10. Additional Information—E. Taxation—United States
Federal Income Tax Considerations”) will generally be subject to reporting requirements and may incur significantly increased United
States income tax on gain recognized on the sale or other disposition of the ADSs or ordinary shares and on the receipt of distributions
on  the  ADSs  or  ordinary  shares  to  the  extent  such  gain  or  distribution  is  treated  as  an  “excess  distribution”  under  the  United  States
federal income tax rules and such U.S. Holder may be subject to burdensome reporting requirements. Further, if we are a PFIC for any
year during which a U.S. Holder holds our ADSs or ordinary shares, we generally will continue to be treated as a PFIC for all succeeding
years during which such U.S. Holder holds our ADSs or ordinary shares, unless we were to cease to be a PFIC and the U.S. Holder were
to  make  a  “deemed  sale”  election  with  respect  to  the  ADSs  or  ordinary  shares.  For  more  information  see  “Item  10.  Additional
Information—E.  Taxation—United  States  Federal  Income  Tax  Considerations”  and  “Item  10.  Additional  Information—E.  Taxation—
United States Federal Income Tax Considerations—Passive Foreign Investment Company Rules.”

We  expect  to  incur  increased  costs  and  become  subject  to  additional  rules  and  regulations  as  a  result  of  being  a  public  company,
particularly after we ceased to qualify as an “emerging growth company.”

As a public company, we expect to incur significant legal, accounting and other expenses that we did not incur as a private company.
The Sarbanes-Oxley Act of 2002, as well as rules subsequently implemented by the SEC and the Nasdaq Global Market, impose various
requirements on the corporate governance practices of public companies. We were an “emerging growth company” as defined in the U.S.
Jumpstart Our Business Startups Act of 2012, or the JOBS Act, and we historically took advantage of certain exemptions from various
requirements  applicable  to  other  public  companies  that  are  not  emerging  growth  companies  including,  most  significantly,  exemption
from the auditor attestation requirement under Section 404 of the Sarbanes-Oxley Act of 2002 in the assessment of the emerging growth
company’s internal control over financial reporting.

As we no longer qualify as an emerging growth company, we are no longer able to take advantage of any reduced disclosure and
other  requirements  that  are  available  to  emerging  growth  companies.  We  expect  to  incur  significant  expenses  and  devote  substantial
management effort toward ensuring compliance with the requirements of Section 404 of the Sarbanes-Oxley Act of 2002 and the other
rules and regulations of the SEC. We also expect that operating as a public company will make it more difficult and more expensive for
us  to  obtain  director  and  officer  liability  insurance,  and  we  may  be  required  to  accept  reduced  policy  limits  and  coverage  or  incur
substantially higher costs to obtain the same or similar coverage. In addition, we will incur additional costs associated with our public
company reporting requirements. It may also be more difficult for us to find qualified persons to serve on our board of directors or as
executive officers. We are currently evaluating and monitoring developments with respect to these rules and regulations, and we cannot
predict or estimate with any degree of certainty the amount of additional costs we may incur or the timing of such costs.

In the past, shareholders of a public company often brought securities class action suits against the company following periods of
instability in the market price of that company’s securities. If we were involved in a class action suit, it could divert a significant amount
of  our  management’s  attention  and  other  resources  from  our  business  and  operations,  which  could  harm  our  results  of  operations  and
require  us  to  incur  significant  expenses  to  defend  the  suit.  Any  such  class  action  suit,  whether  or  not  successful,  could  harm  our
reputation and restrict our ability to raise capital in the future. In addition, if a claim is successfully made against us, we may be required
to pay significant damages, which could have a material adverse effect on our financial condition and results of operations.

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ITEM 4.

INFORMATION ON THE COMPANY

A.   History and Development of the Company

We  commenced  our  operations  in  November  2014,  when  our  predecessor  Third  Venture  Biopharma  (Nanjing)  Co.,  Ltd  (“Third

Venture”) was established.

I-Mab was established in June 2016 under the laws of the Cayman Islands as our offshore holding company. In July 2016, I-Mab
established I-Mab Biopharma Hong Kong Limited (“I-Mab Hong Kong”), as its intermediary holding company. In August 2016, I-Mab
Hong Kong established a wholly-owned PRC subsidiary, I-Mab Biopharma Co., Ltd. (“I-Mab Shanghai”). In September 2016, the assets
and operations of Third Venture were consolidated into I-Mab Shanghai.

In July 2017, I-Mab Hong Kong acquired a controlling interest in I-Mab Bio-tech (Tianjin) Co., Ltd. (“I-Mab Tianjin”), formerly
known  as  Tasgen  Bio-tech  (Tianjin)  Co.,  Ltd.,  a  company  focused  on  CMC  management  of  biologics  in  China.  Through  an  internal
corporate restructuring, I-Mab Tianjin became the 100% owner of I-Mab Shanghai in September 2017 and I-Mab Hong Kong acquired
the remaining interest in I-Mab Tianjin in May 2018, becoming the 100% owner of I-Mab Tianjin.

In  February  2018,  I-Mab  Hong  Kong  established  in  Maryland,  United  States,  a  wholly-owned  subsidiary  I-Mab  Biopharma  US

Limited (“I-Mab US”), as the hub for the discovery and development of the drug candidates in our Global Portfolio.

On January 17, 2020, our ADSs commenced trading on the Nasdaq Global Market under the symbol “IMAB.” We raised from our
initial public offering approximately US$103.7 million in net proceeds, after the underwriters exercise in part their over-allotment option
to purchase additional ADSs.

In  2020,  we  have  taken  concrete  steps  to  execute  our  plan  to  invest  in  a  comprehensive  biologics  manufacturing  facility  in
Hangzhou, China (the “Hangzhou Facility”) as part of our strategic plan to become a specialty biopharma company. The construction of
the Hangzhou Facility commenced in April 2021. The Hangzhou Facility has established a pilot capacity of two production lines (one
line configured with 2 x 2,000L and the other line with 1 x 2,000L). The project has been financed by a combination of internal and
external sources. In September 2020, a group of domestic investors in China invested a total of US$120 million (in RMB equivalent) in
cash. Upon closing, we, through our wholly-owned subsidiary and parties acting in concert, remain the majority shareholder of I-Mab
Biopharma (Hangzhou) Limited (“I-Mab Hangzhou”), the entity holding the Hangzhou Facility. I-Mab Hangzhou became an affiliate of
our  company  on  the  closing  date.  On  July  16,  2022,  I-Mab  Hangzhou  entered  into  a  definitive  financing  agreement  with  a  group  of
domestic investors in China to raise approximately US$46 million (in RMB equivalent). Upon closing of the financing, we, through our
wholly-owned  subsidiary,  will  remain  the  largest  shareholder.  Upon  the  occurrence  of  certain  triggering  events  as  specified  in  the
shareholders agreement among I-Mab Hangzhou, we, through our wholly-owned subsidiary, and other domestic investors, including, but
not limited to, I-Mab Hangzhou’s failure to accomplish certain public offering condition, we may be obligated to repurchase the equity
held by other domestic investors in cash or in our securities in the period beyond 12 months. See Note 10 to our consolidated financial
statements included elsewhere in this annual report for additional information of our investment in I-Mab Hangzhou.

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In September 2020, we, through I-Mab Biopharma Co., Ltd. and I-Mab Biopharma US Limited, each a wholly-owned subsidiary of
our company, entered into a broad global collaboration with AbbVie Ireland Unlimited Company (“AbbVie”), a leading global, research-
based biopharmaceutical company. Pursuant to this collaboration, we grant AbbVie a global license, excluding mainland China, Hong
Kong and Macau, to develop and commercialize lemzoparlimab. In August 2022, we and AbbVie Global Enterprises Ltd., the assignee
of  AbbVie,  entered  into  an  amendment  to  the  original  collaboration  agreement.  Pursuant  to  the  currently  effective  collaboration
agreement, as amended, the parties are collaborating on the global development of anti-CD47 antibody therapy. As of the date of this
annual  report,  AbbVie  has  paid  us  an  upfront  payment  of  US$180  million  and  milestone  payment  of  US$20  million,  and  we  will  be
eligible  to  receive,  and  AbbVie  and  its  assignee  will  pay,  up  to  US$1.295  billion  in  the  development,  regulatory  and  sales  milestone
payments,  and  the  tiered  royalties  at  rates  from  mid-to-high  single  digit  percentages  on  global  net  sales  outside  of  Greater  China  for
certain new anti-CD47 antibodies currently in development, or the original milestone payments and tiered royalties previously disclosed
in  our  annual  report  in  Form  20-F  for  the  fiscal  year  2021  for  other  licensed  products.  We  have  the  exclusive  right  to  develop  and
commercialize all licensed products under the amended collaboration agreement in Greater China. AbbVie discontinued the global Phase
1b study of lemzoparlimab combination therapy with AZA and venetoclax, in patients with MDS and AML, and a Phase 1b study of
lemzoparlimab  in  patients  with  relapsed/refractory  multiple  myeloma.  These  discontinuations  were  not  related  to  any  specific  or
unexpected safety concerns.

In  September  2020,  we  entered  into  definitive  subscription  agreements  (collectively,  the  “Subscription  Agreements,”  and  each,  a
“Subscription Agreement”) with a consortium of institutional investors, pursuant to which we agree to issue and sell to these investors (i)
a total of 29,133,502 ordinary shares of our company for an aggregate purchase price of approximately US$418 million (equivalent to a
price of US$33 per ADS); and (ii) warrants (the “Investor Warrants”) to subscribe for up to 5,341,267 ordinary shares of our company at
an exercise price of US$45 per ADS, which were fully exercised in 2021 and further generated proceeds of approximately US$104.5
million.

On  December  14,  2020,  the  SEC  declared  effective  a  registration  statement  on  Form  F-1,  under  which  the  selling  shareholders
identified therein may offer, from time to time, up to 25,123,751 ordinary shares, including ordinary shares represented by ADSs of our
company.  On  March  23,  2021,  the  SEC  declared  effective  a  post-effective  amendment  to  this  registration  statement  on  Form  F-1  that
terminates the effectiveness of this registration statement and removes from registration all securities registered but not sold under this
registration  statement.  On  March  19,  2021,  we  filed  a  prospectus  supplement  as  part  of  a  registration  statement  on  Form  F-3  (File
No. 333-252793), under which the selling shareholders identified therein may offer, from time to time, up to 19,050,555 ordinary shares,
including ordinary shares represented by ADSs of our company. On March 31, 2022, we filed another prospectus supplement as part of a
registration statement on Form F-3 (File No. 333-252793), under which the selling shareholders identified therein may offer, from time
to time, up to 37,749,951 ordinary shares, including ordinary shares represented by ADSs of our company. We will not receive any of the
proceeds from the sale of the ordinary shares or ADSs by the selling shareholders.

On July 27, 2021, our board of directors approved a preliminary proposal for the potential dual listing of our newly issued shares on
the Science and Technology Innovation Board of the Shanghai Stock Exchange (the “STAR Board”). Our board also authorized certain
officers  to  execute  the  Listing  Tutoring  Agreement  between  us  and  the  Sponsor  China  International  Capital  Corporation  Limited  (the
“Tutoring Agreement”). The completion of the proposed dual listing on the STAR Board is conditional upon and subject to, among other
things,  market  conditions,  further  approval  of  our  board  of  directors  and  potentially  of  our  shareholders  at  a  general  meeting  of  our
company, and the obtaining of the necessary regulatory approvals.

In December 2021, our board of directors approved a motion to pursue the listing of our ordinary shares on The Main Board of The
Stock Exchange of Hong Kong Limited (the “Hong Kong Dual Listing”). The board also authorized our senior management to proceed
with the relevant preparatory work and undertake the necessary procedures to complete the Hong Kong Dual Listing. The Hong Kong
Dual Listing is conditional upon and subject to, among other things, market conditions, further approval of the Board, and the obtaining
of the necessary regulatory approvals.

Our principal executive offices are located at 55th Floor, New Bund Center, 555 West Haiyang Road, Pudong District, Shanghai,

People’s Republic of China. Our telephone number at this address is +86 21-6057-8000.

Our registered office in the Cayman Islands is located at Vistra (Cayman) Limited, P.O. Box 31119 Grand Pavilion, Hibiscus Way,

802 West Bay Road, Grand Cayman, KY1-1205, Cayman Islands.

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B.   Business Overview

Executive Summary

In  2022,  we  faced  a  series  of  risks,  including  macroeconomic  and  geopolitical  headwinds,  which  prompted  us  to  re-position  our
overall  business  in  response  to  these  challenges,  while  focusing  on  re-prioritizing  the  pipeline  development  to  deliver  on  key  clinical
milestones.  These  measures  resulted  in  a  streamlined  workforce  and  R&D  activities  focusing  on  five  key  clinical  assets,  significantly
reducing  the  cash  burn  rate  in  2022  and  beyond.  Today,  the  risks  imposed  by  the  HFCAA  and  the  COVID-19  pandemic  are  largely
mitigated.  Collectively,  we  are  now  in  a  strong  position  to  continue  to  deliver  the  expected  key  catalysts  and  value  through  pipeline
progress and global partnerships with a more prudent expenditure strategy to support our key business operations for the next three years.

More specifically, we made significant progress in our pipeline development by focusing on five key clinical assets: eftansomatropin
alfa, felzartamab, lemzoparlimab, uliledlimab, and givastomig (TJ-CD4B). The major achievements in 2022 included: (1) positive Phase
2 data readout for lemzoparlimab and regulatory approval to initiate a Phase 3 clinical trial in China; (2) positive Phase 2 data readout for
uliledlimab - an encouraging clinical dataset for CD73 and PD-1 combination therapy in advanced non-small cell lung cancer (NSCLC)
to date, which is enabled by CD73 expression as a predictive biomarker. The clinical development plan is being finalized to initiate a
biomarker-guided pivotal trial in the second half of 2023 in advanced NSCLC. In addition, we expect that the recent Phase 2 data could
contribute  to  the  ongoing  discussions  for  a  potential  global  partnership;  (3)  encouraging  Phase  1  data  for  givastomig,  which  will
potentially  enable  the  initiation  of  a  Phase  2  trial  in  the  second  half  of  2023,  and  a  potential  global  partnership;  and  (4)  significant
progress  on  eftansomatropin  alfa  and  felzartamab,  leading  to  Phase  3  data  readout  expected  in  the  second  half  of  2023  and  potential
NDA submission in China by the end of 2023 or early 2024 for eftansomatropin alfa, and at a later time for felzartamab.

The five prioritized clinical assets include three Phase 3 assets (eftansomatropin alfa, felzartamab and lemzoparlimab), one end-of-
phase 2 (EOP2) asset (uliledlimab) and one Phase 1 asset (givastomig). As the studies progress, we expect to have two potential near-
term NDA submissions in China (by the end of 2023 or early 2024 for eftansomatropin alfa and at a later time for felzartamab), two key
assets entering into Phase 3 or pivotal trials in China (lemzoparlimab for myelodysplastic syndromes (MDS) in Phase 3 and uliledlimab
for NSCLC in a pivotal clinical trial) and one asset entering into Phase 2 (givastomig) in 2023.

As  of  December  31,  2022,  we  had  a  total  cash  position,  consisting  of  cash,  cash  equivalents,  restricted  cash  and  short-term
investments, of RMB3.5 billion (US$514.2 million), which we estimate to be sufficient to fund our key business operations for over three
years.

Our Drug Pipeline

Our innovative and advanced drug pipeline is led by five key clinical assets, followed by the next-generation bi-specific antibody

assets. The section below describes the development status of the key clinical assets and selected pre-clinical assets.

Five Key Clinical Assets

Eftansomatropin alfa (TJ101): A Differentiated Long-Acting Growth Hormone for Pediatric Growth Hormone Deficiency

Summary

Eftansomatropin  alfa  is  a  differentiated  long-acting  recombinant  human  growth  hormone  (rhGH)  developed  for  pediatric  growth
hormone  deficiency  (PGHD),  being  the  only  rhGH  in  its  proprietary  fusion  protein  format  and  is  not  chemically  linked  with  PEG  or
other linkers. Its safety, tolerability, and efficacy have been well demonstrated in Phase 1 and Phase 2 clinical trials. We are currently
progressing  towards  the  end  of  a  Phase  3  registrational  trial  (“TALLER”)  of  eftansomatropin  alfa  as  a  weekly  treatment  for  PGHD
patients  in  China,  with  plans  to  submit  an  NDA  by  the  end  of  2023  or  early  2024.  We  obtained  the  rights  from  Genexine  for  the
development,  manufacturing  and  commercialization  of  eftansomatropin  alfa  in  China.  In  November  2021,  we  entered  into  a  strategic
commercial  partnership  with  Jumpcan,  a  leading  domestic  pharmaceutical  company  specializing  in  and  committed  to  pediatric
medicines, to accelerate the commercialization of eftansomatropin alfa.

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Mechanism of Action

Like endogenous growth hormone, eftansomatropin alfa stimulates the production of insulin-like growth factor 1 (“IGF-1”) in the
liver,  which  has  growth-stimulating  effects  on  a  variety  of  tissues,  including  osteoblast  and  chondrocyte  activities  that  stimulate  bone
growth. Thus, IGF-1 is a reliable pharmacodynamic marker and, more importantly, the key mediator of eftansomatropin alfa’s growth-
promoting activity. Eftansomatropin alfa is based on Genexine’s patented hyFc technology. The hyFc part consists of a portion of human
immunoglobulin D (“IgD”) and G4 (“IgG4”). The former contains a flexible hinge, and the latter is responsible for half-life extension
through  neonatal  Fc  receptor  (“FcRn”)-mediated  recycling.  Additionally,  eftansomatropin  alfa’s  increased  molecular  weight  (103
kilodaltons) is expected to reduce renal clearance.

Figure: Schematic presentation of the structure of eftansomatropin alfa. CH2 & CH3: Constant regions 2 & 3 of antibody heavy chains,

respectively; HGH: human growth hormone. (Source: Genexine)

Advantages of Eftansomatropin alfa

We  believe  that  eftansomatropin  alfa  has  the  following  advantages:  (1)  when  compared  with  the  daily  regimen  of  rhGH,
eftansomatropin  alfa  is  proven  to  be  a  more  convenient  therapy  with  better  patient  compliance  due  to  its  weekly  dosing  frequency
(potentially  twice-monthly  administration)  while  maintaining  similar  efficacy;  and  (2)  eftansomatropin  alfa  has  no  safety  concerns
typically  associated  with  pegylated  drugs,  such  as  potential  renal  toxicity,  pre-existing  or  treatment-induced  anti-PEG  antibodies,  and
cellular vacuolation in macrophages, renal tubule cells and the choroid plexus epithelial cells.

Summary of Clinical Results

Genexine has completed three clinical trials with eftansomatropin alfa, including one Phase 1 trial in healthy adult volunteers, one
Phase 1b/2 multi-regional trial in adults with GHD, and one Phase 2 multi-regional trial in PGHD in Europe, altogether involving 32
healthy subjects and 99 patients with GHD and PGHD. Overall, eftansomatropin alfa was shown to be well-tolerated, and the clinical
efficacy  endpoint  achieved  by  weekly  or  twice-monthly  eftansomatropin  alfa  administration  was  comparable  to  that  of  daily
administration of Genotropin.

Phase 1 Clinical Trial in Healthy Adult Subjects

The first-in-human trial of eftansomatropin alfa was a randomized, double-blind, placebo-controlled single dose-ascending study in
four groups of healthy subjects. A total of 32 subjects were enrolled, and 31 completed the study. Eftansomatropin alfa was shown to be
well-tolerated at all dose levels studied (0.2-1.6 mg/kg). Eftansomatropin alfa was detectable in the blood until Day 7 for the 0.2 mg/kg
dose group, Day 14 for the 0.4 and 0.8 mg/kg dose groups, and Day 21 for the 1.6 mg/kg dose group. A single subcutaneous (“SC”)
injection of eftansomatropin alfa at dose levels of 0.4 mg/kg and higher increased IGF-1 and IGF -binding protein-3 (“IGFBP-3”) levels
for at least one week. No safety concerns were identified. Eftansomatropin alfa showed a half-life ranging from 69.2 to 138 hours.

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Phase 2 Clinical Trial in PGHD

The  Phase  2  trial  in  PGHD  was  a  randomized,  open-label,  active-controlled  study  to  assess  the  efficacy,  safety,  tolerability,
pharmacokinetics and pharmacodynamics of weekly and twice-monthly doses of eftansomatropin alfa, as compared with a daily injection
of  Genotropin,  the  current  standard  of  care  for  PGHD.  The  primary  clinical  endpoint  was  annualized  height  velocity  (aHV)  in
centimeters  (cm)  per  year  (equivalent  to  annual  growth  rate),  measured  at  six  months.  A  total  of  56  subjects  were  randomized  at  27
centers in nine European countries and South Korea.

Data  from  the  trial  showed  that  subcutaneous  administration  of  eftansomatropin  alfa  over  the  dose  range  of  0.8  mg/kg/  week-2.4
mg/kg/twice monthly resulted in an increase in aHV over the six-month study period. Subjects who received eftansomatropin alfa at 0.8
mg/kg weekly, 1.2 mg/kg weekly, and 2.4 mg/kg twice-monthly showed growth rates of 11.50, 11.54, and 11.86 cm/year, respectively,
while the growth rate in the control group treated with Genotropin was approximately 11.24 cm/year. In an extension study, greater than
two-digit  growth  velocity  remained  until  12  months  in  all  eftansomatropin  alfa  cohorts,  while  the  Genotropin  cohort  showed  9.14
cm/year at 12 months. Moreover, no remarkable slow-down of the growth velocity was observed in the second year in either the patients
who  received  eftansomatropin  alfa  throughout  or  in  subjects  who  switched  from  the  Genotropin  cohort.  The  tolerability  of
eftansomatropin alfa was consistent with the known properties of marketed products.

Figure: The aHV at six months indicated comparable growth rates between all doses of eftansomatropin alfa (both weekly and twice-

monthly treatment) and the active comparator, Genotropin. (Source: Genexine)

Registrational Phase 3 Clinical Trial

The registrational Phase 3 trial of eftansomatropin alfa in PGHD (“TALLER”) is on track in China. In May 2022, we announced the
completion  of  patient  enrollment  in  the  TALLER  study  for  treatment  of  PGHD.  TALLER  is  a  multi-center,  randomized,  open-label,
active-controlled  clinical  study  designed  to  assess  the  efficacy,  safety,  and  pharmacokinetics  of  eftansomatropin  alfa  in  PGHD
(NCT04633057). The primary objective is to demonstrate non-inferiority of 1.2 mg/kg/week of eftansomatropin alfa administered SC,
compared with the active control Norditropin, a daily rhGH marketed in China. Following the completion of the patient enrollment, the
final dataset from the TALLER study is anticipated in the second half of 2023, which is expected to be followed by an NDA submission
by the end of 2023 or early 2024.

In November 2021, we announced a strategic commercial partnership with Jumpcan, a leading domestic pharmaceutical company
specializing  in  and  committed  to  pediatric  medicines,  to  accelerate  the  commercialization  of  eftansomatropin  alfa.  We  will  be  the
marketing authorization holder (MAH) of the product and supply the product at an agreed cost to Jumpcan. Jumpcan will be responsible
for  commercializing  the  product  and  developing  new  indications  in  collaboration  with  us  in  mainland  China.  Jumpcan  has  made  an
upfront  payment  to  us  of  RMB224  million.  Upon  achievement  of  development,  registration,  and  sales  milestones,  certain  milestone
payments  of  up  to  RMB1.79  billion  will  be  made,  with  total  non-royalty  payments  up  to  RMB2.02  billion.  In  addition,  I-Mab  and
Jumpcan will share profits generated from the commercialization of the product in mainland China on a 50/50 basis, pursuant to which
we will be entitled to receive tiered low double-digit royalties on net sales. This partnership deal represents one of the largest in China’s
biopharma market to date. Both companies have been working together to prepare for the future product launch of eftansomatropin alfa
in China.

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Felzartamab (TJ202): A Differentiated CD38 Antibody for Multiple Myeloma and Autoimmune Diseases

Summary

Felzartamab is a differentiated CD38 antibody for the treatment of relapsed and refractory multiple myeloma (MM) and potentially
autoantibody-mediated  autoimmune  diseases.  We  obtained  the  rights  from  MorphoSys  to  develop,  manufacture,  and  commercialize
felzartamab in Greater China. Clinical data available from MorphoSys and I-Mab confirmed the advantages of felzartamab in its lower
infusion-related reaction rates and a shorter infusion time, making felzartamab’s use in an out-patient clinic setting possible, along with
other  potential  benefits.  Felzartamab  required  only  a  short  infusion  time  of  30  minutes  (as  subsequent  infusions)  to  two  hours  (as  an
initial infusion), compared with 3.5 to 6.5 hours for the currently marketed CD38 antibody. Moreover, the IRR of felzartamab was 7%,
compared with 48% for the currently marketed CD38 antibody.

The third-line (3L) MM registrational trial of felzartamab has been completed, and the topline data have met the preset primary and
secondary  endpoints.  The  clinical  data  confirmed  the  clinical  advantages  of  felzartamab  in  terms  of  aforementioned  lower  infusion-
related reaction rate and shorter infusion time, which has made it feasible and practical for its use in an out-patient clinic setting. We are
on  track  with  the  registrational  trial  of  felzartamab  in  combination  with  lenalidomide  and  dexamethasone  as  a  second-line  (2L)  MM
treatment. The topline data package, when fully matured, is expected to support our NDA submission.

In January 2022, we signed a partnership agreement with the government of Qiantang District of Hangzhou in China to manufacture
felzartamab locally to accelerate our commercialization of felzartamab. The local manufacturing plan is expected to significantly reduce
the cost of goods and render felzartamab more commercially competitive.

Mechanism of Action

Felzartamab  binds  to  CD38  overexpressed  on  the  surface  of  target  cells  and  kills  them  by  inducing  antibody-dependent  cellular
cytotoxicity (ADCC) and antibody-dependent cellular phagocytosis (ADCP). The target cells are the malignant plasma cells in MM and
a group of dysregulated CD38 high B cells and plasma cells that produce pathogenic antibodies in autoimmune conditions such as SLE.

Figure: Felzartamab kills CD38-bearing tumor cells by inducing ADCC and ADCP.

Advantages of Felzartamab

We  believe  that  felzartamab  has  the  following  advantages  compared  with  the  currently  marketed  CD38  antibody:  (1)  felzartamab
demonstrated  a  lower  infusion-related  reaction  rate  and  shorter  infusion  time,  which  could  make  it  possible  for  use  in  an  out-patient
clinic setting; and (2) felzartamab treatment does not down-regulate CD38 expression on the surface of bone marrow myeloma cells in
vitro, maintaining the sensitivity of malignant myeloma cells to repeated felzartamab treatments.

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Summary of Clinical Results

Phase 1/2a Trial in patients with r/r MM by MorphoSys

A  Phase  1/2a,  open-label,  multicenter,  dose-escalation  study  in  adult  patients  with  relapsed  or  refractory  MM  was  conducted  by
MorphoSys in Austria and Germany. The results concluded that felzartamab was well-tolerated as a single agent and in combination with
dexamethasone  (DEX),  pomalidomide  (POM)/DEX,  or  lenalidomide  (LEN)/DEX.  Felzartamab  was  administered  as  a  two-hour  IV
infusion  at  the  first  dose,  and  infusion  time  could  be  reduced  to  as  short  as  30  minutes  at  subsequent  doses  without  obvious  safety
concerns. The maximal tolerable dose (MTD) of felzartamab was not reached.

Preliminary  efficacy  results  were  based  on  56  patients  from  three  groups  treated  with  felzartamab  combination  therapies.
Felzartamab, in combination with low dose DEX, POM/DEX, or LEN/DEX, demonstrated an overall response rate (ORR) of 28%, 48%
and 65%, respectively. Durable responses were observed as median progression-free survival (PFS) was 8.4 months and 17.5 months for
the DEX and the POM/DEX combination groups, respectively, and PFS levels were not reached for the LEN/DEX combination group, as
there were not sufficient events of progression recorded.

Figure: Best overall response and ORR. Patients were treated with felzartamab in combination with a low dose of DEX (40 mg for 75
years old and younger, or 20 mg for patients over 75 years old), POM (4 mg)/Dex, or LEN (25 mg)/Dex. Dex: dexamethasone;
POM: pomalidomide; LEN: lenalidomide; ITT: intent to treat; NE: not evaluable; PD: progressive disease; SD: stable disease;
MR:  minimal  response;  PR:  partial  response;  VGPR:  very  good  partial  response;  CR:  complete  response;  sCR:  stringent
complete response; ORR: overall response rate. (Source: MorphoSys)

Clinical Development Status

The third-line MM registrational trial has been completed, and the topline data have met the preset primary and secondary endpoints.
More importantly, the clinical data have confirmed the clinical advantages of felzartamab in terms of lower infusion-related reaction rate
and shorter infusion time, which makes it feasible and practical for its use in an out-patient clinic setting.

For the registrational trial of felzartamab and lenalidomide/dexamethasone as a 2L MM treatment, we completed patient enrollment

in September 2021. The topline data package, when fully matured in 2023, is expected to support an NDA submission.

We plan to position felzartamab as the first and only locally manufactured CD38 antibody in China to facilitate its potential NDA
submission  and  to  be  more  commercially  competitive.  With  the  support  of  the  local  government  in  China,  our  plan  is  to  manufacture
felzartamab locally for increased affordability and commercial competitiveness. In parallel, we are exploring commercial partnerships in
China  for  felzartamab,  with  the  goal  of  enabling  us  to  quickly  gain  and  scale  up  market  share  for  felzartamab  without  investing
significant resources in our own commercialization capabilities.

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Lemzoparlimab (TJC4): A Novel CD47 Antibody for Immuno-Oncology with First-in-Class Potential in China

Summary

Lemzoparlimab  is  a  fully  human  CD47  monoclonal  antibody  discovered  and  developed  internally  by  our  company  for  cancer
immunotherapy. CD47 has emerged as one of the most promising immuno-oncology targets in recent years. Lemzoparlimab is among the
global  front-runners  after  magrolimab.  As  one  of  the  most  promising  drug  classes  in  immuno-oncology,  the  development  of  CD47
antibodies  is  primarily  hampered  by  their  on-target  binding  to  red  blood  cells  (RBCs).  Therefore,  various  CD47  antibodies  in  their
clinical development are found to be susceptible to severe anemia and other hematologic side effects. As a result, many CD47 antibody
programs have been either terminated in early clinical trials or faced drug safety challenges in clinical trials. For example, in January
2022, Gilead announced that the U.S. FDA had placed a partial clinical hold on studies evaluating the combination of magrolimab plus
azacitidine  due  to  an  apparent  imbalance  in  investigator-reported  suspected  unexpected  serious  adverse  reactions  (SUSARs)  between
study arms, which was later lifted for the study in acute myeloid leukemia (AML)/myelodysplastic syndromes (MDS) but remained in
diffuse large B cell lymphoma (DLBCL) and multiple myeloma (MM).

Lemzoparlimab is a novel CD47 antibody by design. It was originally selected from antibody screen campaigns designed to identify
CD47 antibody leads with minimal binding to RBCs while maintaining strong binding to tumor cells. In terms of its differentiation in
drug safety, the preclinical, Phase 1, and Phase 2 clinical studies we conducted so far have supported a good safety profile without the
need for a priming dosing regimen. In terms of treatment efficacy, our Phase 1 and Phase 2 clinical trials have demonstrated encouraging
efficacy  signals,  mostly  in  hematologic  malignancies.  In  September  2022,  we  presented  the  Phase  2  clinical  data  (NCT04202003)  of
lemzoparlimab  in  combination  with  AZA  in  patients  with  newly  diagnosed  higher  risk  myelodysplastic  syndrome  (HR-MDS)  at  the
European Society for Medical Oncology (ESMO) Congress. Furthermore, we will provide the updated data from the Phase 2 MDS trial
in the second half of 2023.

Our  clinical  development  plan  is  aimed  to  prioritize  hematologic  malignancies  with  the  first-line  (1L)  MDS  combination  therapy
with azacitidine (AZA) as a lead indication. A Phase 3 clinical trial for 1L MDS combination therapy has been initiated in April 2023.
Additionally,  we  are  progressing  towards  the  end  of  a  Phase  2  AML  trial  in  combination  with  AZA,  and  continue  to  evaluate
lemzoparlimab in combination with rituximab in patients with non-Hodgkin’s lymphoma (NHL) and with PD-1 therapy in patients with
selected solid tumors.

Molecular Differentiation of Lemzoparlimab

Lemzoparlimab exhibits high-affinity binding to human CD47 protein and CD47-expressing tumor cells at the nanomolar level and
effectively  blocks  the  interaction  of  CD47  with  its  receptor  SIRPα.  As  compared  with  other  CD47  antibodies  currently  under  clinical
development,  lemzoparlimab  (TJC4)  demonstrated  comparable  potency  in  the  enhanced  macrophage-mediated  phagocytosis  of  Raji
tumor cells (see Figure A below) and anti-tumor activity in the HL-60 cell line in leukemia and Raji xenograft models (see Figure B
below).  Moreover,  when  combined  with  rituximab,  lemzoparlimab  exhibited  a  markedly  enhanced  inhibition  of  tumor  growth  in  a
diffuse large B cell lymphoma (DLBCL) animal model through the synergistic effect of both agents (see Figure C below).

Figure: In  vitro  and  in  vivo  anti-tumor  activity  of  lemzoparlimab  (TJC4).  (A)  In  vitro  phagocytosis  of  Raji  cells  by  primary  human
macrophages  in  the  presence  of  different  doses  of  lemzoparlimab  or  comparator  CD47  antibodies.  (B)  In  vivo  anti-tumor
activity of lemzoparlimab mono-treatment in Raft xenograft model. (C) In vivo anti-tumor activity of lemzoparlimab (5 mg/kg,
BIW) in combination with Rituximab (5 mg/kg, BIW) in the DLBCL model.

The key differentiation of lemzoparlimab is its minimal binding to RBCs which is highlighted in a series of preclinical studies, thus
potentially avoiding or minimizing inherent hematologic adverse effects typically seen in other CD47 antibodies in clinical trials. Firstly,
in a representative flow cytometric analysis (see Figure A below), lemzoparlimab showed minimal binding to human RBCs compared to
comparator  CD47  antibodies  used  at  the  same  concentration.  The  minimal  binding  of  lemzoparlimab  to  RBCs  was  confirmed  when
compared with other CD47 antibodies across multiple concentrations in another experiment (see Figure B below).

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Figure: Binding  of  CD47  monoclonal  antibodies  to  RBCs.  (A)  Representative  graph  of  the  staining  of  human  RBCs  with  CD47
monoclonal antibodies or control IgG (1 µg/ml); (B) Dose dependent binding of CD47 monoclonal antibodies with human RBCs
from different healthy donors (n = 3). MFI: mean fluorescence intensity.

Secondly, as CD47 is expressed on normal RBCs, binding of CD47 antibodies to the surface of RBCs could cross-link the RBCs
into  lattices  and  prevent  them  from  precipitating  into  compact  pellets,  which  is  a  phenomenon  termed  hemagglutination.  Our  results
showed that lemzoparlimab did not induce RBC agglutination across a wide range of antibody concentrations. In contrast, a comparator
antibody caused significant hemagglutination starting at a concentration of 0.3 µg/ml.

Figure: Hemagglutination by CD47 monoclonal antibodies. Left: representative graph of hemagglutination (haze appearance) or lack
thereof  (precipitate)  by  different  concentrations  of  control  IgG,  lemzoparlimab  (TJC4),  and  comparator  antibodies.  Right:
quantification through an index determined by the area of RBC occupation in the presence of the test antibodies, normalized to
that of IgG control.

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Thirdly, in vivo safety studies were performed in cynomolgus monkeys to assess the effects of lemzoparlimab on the hematology
parameters.  Whereas  a  single  bolus  IV  injection  of  the  comparator  antibody  caused  a  significant  drop  in  the  number  of  RBCs  and
hemoglobin (HGB) levels, treatment with lemzoparlimab at a dose of 10 mg/kg did not significantly affect the number of RBCs, HGB
levels  or  reticulocyte  or  platelet  counts  (see  figure  below).  A  following  four-week  GLP  toxicology  study  further  confirmed  that
lemzoparlimab treatment did not induce significant overall toxicologic changes. Only mild decreases in the number of RBCs, HGB, and
hematocrit  were  found,  which  reached  a  nadir  on  Day  4  post-first  administration  and  then  gradually  recovered  to  the  normal  range
following administration. Compared with the placebo control, the average decrease of RBCs in the treated animals was approximately
6% to 9%, with only one animal showing an 18% drop at a dose of 30 mg/kg. No RBC-associated changes were noted in histopathologic
examinations or in bone marrow smears (including erythrocytic series).

Figure: Hematological parameters in non-human primates treated with a single dose of CD47 antibodies. On Day 0, naive cynomolgus
monkeys were IV injected with PBS control (n=2), lemzoparlimab (TJC4) (n=2, 10 mg/kg) or a comparator antibody (n=2, 10
mg/kg). Blood cells were counted twice before drug injection (baseline) and at 3, 6, 10, 14, and 21 days post-injection.

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The Underlying Mechanism for Lemzoparlimab’s Differentiation

We  set  forth  to  investigate  the  molecular  mechanism  underlying  the  minimal  binding  of  lemzoparlimab  to  RBCs.  The  crystal
structure of the CD47 antibody binding complex revealed that lemzoparlimab binds to a unique epitope of CD47 situated in a heavily
glycosylated site on RBCs. More specifically, the results of crystal structure analysis identified an N-glycosylation site located near the
epitope residues. Additional experiments were carried out to address the hypothesis of whether this glycosylation site near the epitope
may hinder lemzoparlimab from fully binding to its epitope on RBCs. The data showed that PNGase treatment of RBCs to remove the N-
linked oligosaccharides from glycoproteins significantly increased the binding of lemzoparlimab as compared with a control antibody,
providing the evidence that removal of glycosylation site(s) on RBC effectively restores binding of lemzoparlimab to RBCs.

Figure: The  left.  Crystal  structure  of  the  complex  of  the  Fab  of  lemzoparlimab  (TJC4,  Cyan)  binding  with  the  extracellular  domain
(ECD)  of  human  CD47  (Green).  The  right.  In  a  representative  experiment,  human  RBCs  were  treated  with  PNGase  for  1  hr,
followed by the addition of lemzoparlimab (TJC4) ore comparator CD47 antibody that binds strongly to RBC at the indicated
concentrations.  The  binding  of  CD47  antibodies  to  the  treated  (de-glycosylated)  or  untreated  RBCs  was  analyzed  by  flow
cytometry.

In  summary,  the  underlying  mechanism  is  attributable  to  a  unique  binding  site  of  lemzoparlimab  or  so-called  glyco-epitope  on
RBCs. That is, the unique glycosylation integrated with the binding site of lemzoparlimab serves as a natural molecular barrier to prevent
lemzoparlimab from engaging RBCs. Therefore, RBCs are only minimally accessible by lemzoparlimab. In contrast, the binding site on
tumor  cells  does  not  have  the  same  glycosylation  pattern  and  is  fully  exposed  to  and  accessible  by  lemzoparlimab.  Therefore,
lemzoparlimab  can  uniquely  distinguish  tumor  cells  from  RBCs  to  avoid  severe  anemia  that  is  commonly  seen  with  other  CD47
antibodies while retaining strong anti-tumor activity.

Amendment to the Global Partnership with AbbVie

In  August  2022,  we  entered  into  an  amendment  with  AbbVie  Global  Enterprises  Ltd.  (as  assignee  of  AbbVie)  to  the  original
collaboration agreement (as amended, the “AbbVie Collaboration Agreement”). The parties are collaborating on the global development
of  certain  new  anti-CD47  antibodies  under  the  AbbVie  Collaboration  Agreement.  Accordingly,  we  will  be  eligible  to  receive,  and
AbbVie and its assignee will pay, up to US$1.295 billion in the development, regulatory and sales milestone payments, and the tiered
royalties at rates from mid-to-high single digit percentages on global net sales outside of Greater China for the new anti-CD47 antibodies
currently in development, or the original milestone payments and tiered royalties previously disclosed in our annual report in Form 20-F
for the fiscal year 2021 for other licensed products. We have the exclusive right to develop and commercialize all licensed products under
the AbbVie Collaboration Agreement in Greater China. Meanwhile AbbVie discontinued the global Phase 1b study of lemzoparlimab
combination therapy with AZA and venetoclax, in patients with MDS and AML, and a Phase 1b study of lemzoparlimab in patients with
relapsed/refractory multiple myeloma. These discontinuations were not related to any specific or unexpected safety concerns.

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Summary of Clinical Results

Drug Safety

In terms of lemzoparlimab’s safety profile, after the announcement of magrolimab’s partial clinical hold in 2022, we conducted a
systemic review of the safety data collected from nearly 200 patients, including solid tumors and hematologic malignancies treated in
various combinations. The safety data from both the U.S. and China studies are consistent with our expected safety profile without the
need of a priming dose regimen. As a result, there is no change in our strategy and plans for the development of lemzoparlimab.

For  the  studies  in  solid  tumors  and  NHL  in  the  U.S.,  lemzoparlimab  was  well  tolerated  up  to  30  mg/kg  on  a  weekly  infusion
schedule without priming dosing either in mono- or combination therapy. A MTD was not reached. All treatment-related adverse events
(TRAEs) were either Grade 1 or Grade 2, except that one Grade 3 lipase increase was reported in the single-agent dose-escalation study
in solid tumors and one Grade 3 TRAEs from the same patient, including pleural effusion, tachycardia, cough, pruritis, fatigue, rash, and
dyspnea, at 20 mg/kg dose in a combination study with rituximab in NHL. No clinical or laboratory evidence of hemolytic anemia was
observed throughout. The hematological data from both studies in solid tumors and NHL showed a transient reduction in the hemoglobin
levels during the first cycle. The average drop was approximately 10% and was not dose-dependent. This finding is consistent with the
results of preclinical GLP toxicity studies. None of the drug-related anemia reported was considered to be severe or hemolytic in nature.

For the Phase 2 clinical trial in AML/MDS, over 90 patients were dosed with lemzoparlimab at 30 mg/kg in combination with AZA

in China. The safety data are being analyzed for a subsequent topline data release.

Figure: Time course of hemoglobulin level following lemzoparlimab treatment in phase 1 single-agent dose escalation study across all
the  cohorts  (n=20)  and  phase  1b  combination  study  with  rituximab  in  NHL  (n=9).  Each  cycle  (C)  is  21  days  (D)  for
monotherapy and 28 days (D) for combination therapy. Mean+SD is shown.

Clinical Efficacy

Across multiple completed and ongoing clinical trials, encouraging efficacy signals were observed and described below.

For lemzoparlimab monotherapy in patients with solid tumors, one confirmed Partial Response (PR) was observed in the 30 mg/kg
monotherapy cohort (1/3). The patient who had metastatic melanoma had failed prior systemic treatment of nivolumab and ipilimumab.
In addition, three patients achieved Stable Disease (SD) with SD duration longer than 16 weeks at dose cohorts of 1 mg/kg, 10 mg/kg,
and 30 mg/kg. Two patients with squamous cell carcinoma of the head and neck (SCCHN) and renal cell carcinoma (RCC), respectively,
failed nivolumab and the other with ovarian cancer received no prior PD-(L)1 inhibitor treatment.

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For  lemzoparlimab  combination  therapy  with  rituximab  in  patients  with  NHL,  we  presented  interim  dose  escalation  data  of
lemzoparlimab in combination with rituximab in relapsed and refractory (r/r) NHL at the 2021 American Society of Hematology (ASH)
Annual Meeting. The preliminary data were generated from nine patients with r/r NHL who received at least two prior lines of therapies,
with a median of four lines. Safety findings of lemzoparlimab at doses of 20 mg/kg and 30 mg/kg weekly, without a priming dose, are
consistent  with  what  was  observed  at  lower  doses,  and  no  dose-limiting  toxicity  (DLT)  was  observed.  Positive  clinical  activity  was
observed in heavily pretreated patients who had progressed on prior anti-CD20 therapies. Among seven efficacy-evaluable patients, four
achieved complete responses (CR) (1 transformed FL-DLBCL +3 FL), one partial response (PR) of FL were observed (ORR = 71%);
two reported stable disease (SD), and the disease control rate (DCR) was 100%. Tumor shrinkage was observed in all evaluable patients.
The median time to response was 50 days, and the response lasted from 61 to 236 days. A high level (80% and 90%) of intra-tumoral
distribution measured by IHC of tumor biopsy was reached at 20 mg/kg and 30mg/kg weekly.

For lemzoparlimab combination therapy with AZA in patients with MDS, over 90 patients with newly diagnosed MDS and AML
were dosed in the Phase 2 clinical trial of lemzoparlimab at 30 mg/kg in combination with AZA in China (NCT04202003). This patient
cohort had a more severe disease at baseline due to disease conditions and clinical practice patterns in China. In September 2022, we
announced encouraging data from this Phase 2 clinical trial in patients with newly diagnosed higher-risk myelodysplastic syndrome (HR-
MDS),  presented  in  an  oral  presentation  at  ESMO  2022.  A  total  of  53  patients  were  enrolled  as  of  March  31,  2022,  receiving
lemzoparlimab at a weekly dose of 30 mg/kg intravenously (IV) and AZA at 75 mg/m2 subcutaneously (SC) on Days 1–7 in a 28-day
cycle. Top-line data showed that for patients who began treatments 6 months or longer prior to the analysis (n=15), the overall response
rate (ORR) and complete response rate (CRR) were 86.7% and 40%, respectively. While the study enrolled more patients with worse
baseline  conditions  due  to  underlying  disease  (74%  of  patients  had  grade  ≥3  anemia,  and  51%  of  patients  had  grade  ≥3
thrombocytopenia), the results showed that lemzoparlimab combined with AZA was well-tolerated and the safety profile was comparable
with  that  of  AZA  monotherapy.  Updated  results  from  the  most  recent  data  analysis  of  62  patients  in  the  study  have  demonstrated
consistent clinical efficacy including ORR and CRR with no new safety signals identified. We plan to present the updated data at a major
scientific meeting in the second half of 2023.

Clinical Development Plan

Leukemia. We are advancing our Phase 3 registrational trial of lemzoparlimab combination therapy for potential 1L treatment of
newly diagnosed HR-MDS after approval by the CDE in September 2022. We presented the full dataset of our Phase 2 clinical trial in
patients with newly diagnosed HR-MDS at the ESMO 2022 in September 2022 and expect to present the updated data readout of this
study in the second half of 2023.

Lymphoma and Solid Tumors. We previously presented the encouraging clinical data at the 2021 American Society of Hematology
(ASH)  annual  meeting  for  lemzoparlimab  combination  therapy  with  rituximab  in  patients  with  NHL.  We  continue    to  evaluate
lemzoparlimab in combination with rituximab in patients with NHL and with PD-1 therapy in patients with selected solid tumors. More
data will be reported as the studies progress.

Uliledlimab (TJD5): A Highly Differentiated CD73 Antibody for Solid Tumors

Summary

Uliledlimab is an internally discovered, highly differentiated CD73 neutralizing antibody. CD73 is a homodimeric enzyme widely
expressed  in  multiple  tumors  and  plays  a  critical  role  in  the  generation  of  adenosine  to  contribute  to  an  immuno-suppressive  tumor
microenvironment. The key differentiation of uliledlimab, when compared to some of the other clinical-stage CD73 antibodies, is related
to its novel epitope, which works through a unique intra-dimer binding mode, resulting in complete inhibition of the enzymatic activity
and  avoiding  the  aberrant  pharmacological  property  known  as  the  “hook  effect.”  In  addition,  uliledlimab  has  a  non-competitive
inhibitory effect that is not blunted by high levels of CD73 enzyme substrates, which would be expected for small-molecule competitive
blockers.  Preclinical  studies  have  shown  that  uliledlimab  could  completely  reverse  the  AMP-or  tumor  cell-mediated  suppression  of  T
cells in vitro.  When  combined  with  a  PD-(L)1  antibody  in vivo,  uliledlimab  exhibited  a  superior  and  synergistic  inhibitory  effect  on
tumor growth compared to PD-(L)1 monotherapy.

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Uliledlimab  is  globally  competitive  and  is  among  the  front-runners  after  oleclumab,  with  significant  progress  made  in  its  global
clinical development. In the U.S., we have completed the initial assessment of a Phase 1 clinical study where uliledlimab was evaluated
as a monotherapy lead-in and followed by combining with atezolizumab (Tecentriq ®) in patients with solid tumors. Topline results from
this study showed that uliledlimab is safe and well-tolerated across all the dose cohorts evaluated. The data demonstrated a favorable
linear PK and steep PK/PD relationship with complete receptor occupancy as expected based upon the normal dose-response property of
uliledlimab  without  the  hook  effect.  Furthermore,  encouraging  clinical  efficacy  signals  from  this  study  were  observed  in  NSCLC  and
ovarian patients with higher CD73 and PD-L1 co-expression in the tumor, indicating a potential correlation between the clinical activity
of uliledlimab and tumor CD73 expression as a potential predictive biomarker that warrants further investigation.

Based on the results of the Phase 1 study, we were able to determine the recommended phase 2 dose (RP2D) and further evaluated
the efficacy and safety of uliledlimab in combination with checkpoint inhibitor in Stage IV NSCLC and other select tumor types in Phase
2 trials. The most encouraging results came from our Phase 2 trial of uliledlimab in combination with toripalimab (TUOYI®) in patients
with Stage IV NSCLC. Since the initial presentation at the 2022 American Society of Clinical Oncology (ASCO) annual meeting, we
have completed the enrollment of 70 patients in December 2022. Similar efficacy data in relation to CD73 expression were obtained with
increased follow-up time in more patients, showing a consistent trend of efficacy signals with an overall ORR >30% in all patients and,
noticeably,  an  ORR  ~50%  in  CD73  high  expression  patients.  The  results  have  demonstrated  that  the  higher  clinical  response  of
uliledlimab and PD-1 combination therapy correlates with high tumor CD73 expression in patients with advanced NSCLC. We plan to
present the data at the ASCO 2023 annual meeting. With the availability of the new data, we have been actively discussing with potential
global partners and aim to accelerate the ongoing business discussion for a potential global partnership.

Competitive Landscape

The  most  advanced  CD73  antibody  currently  is  oleclumab  (MEDI-9447)  from  Medimmune/AstraZeneca,  which  has  initiated  a
Phase 3, double-blinded, placebo-controlled, randomized study of durvalumab plus oleclumab in patients with locally advanced (Stage
III), unresectable NSCLC who have not progressed following definitive, platinum-based concurrent chemoradiation therapy. Data from
the  COAST  Phase  2  trial  and  NeoCOAST  Phase  2  trials  showed  that  the  addition  of  oleclumab  to  durvalumab  enhanced  anti-tumor
immune  responses  in  patients  with  NSCLC.  NZV-930  (from  Novartis)  and  AK119  (from  AkesoBio)  were  in  Phase  1  clinical
development for solid tumors. Arcus Biosciences had also reported promising results in their Phase 1b/2 trial of quemliclustat, a small
molecule CD73 inhibitor, in combination with zimberelimab plus chemotherapy in patients with pancreatic cancer.

Molecular Differentiation of Uliledlimab

Extracellular  AMP  can  be  generated  from  ATP,  cyclic  AMP,  and  nicotinamide  adenine  dinucleotide  (NAD)  through  separate
biochemical  pathways,  all  of  which  converge  to  CD73  as  a  rate-limiting  enzyme  to  generate  adenosine.  Thus,  the  CD73  antibody  is
expected to block adenosine generation more completely than other related targets. The key advantages of uliledlimab when compared
with other CD73 antibodies or small molecule inhibitors can be summarized as follows: (1) uliledlimab exhibits a typical dose-response
curve without the “hook effect” to achieve the complete inhibition of both soluble and surface-bound CD73; and (2) uliledlimab has a
non-competitive  inhibitory  effect  that  is  not  blunted  by  high  levels  of  CD73  enzyme  substrates,  which  would  be  expected  for  small-
molecule  competitive  blockers.  These  pharmacological  properties  may  translate  into  efficient  target  inhibition  in  tumors  and  superior
anti-tumor activity, especially in an adenosine-rich micro-environment.

Biochemically, uliledlimab displayed complete inhibition of soluble CD73 enzymatic activity (IC50 = 0.22 n M) without the “hook
effect”  in  contrast  to  the  comparator  molecule,  which  at  higher  concentrations  caused  a  paradoxical  rebound  of  enzymatic  activity
presumably  due  to  its  inter-dimer  binding  mode.  The  recent  structural  data  revealed  by  cryo-EM  showed  that  uliledlimab  binds  to  a
unique epitope located at the C-terminus of CD73 dimer distinct from other CD73 antibodies, including oleclumab, all of which bind to
the  N-terminus  of  CD73.  With  this  unique  epitope,  uliledlimab  adopts  a  differentiated  intra-dimer  binding  mode  to  prevent  the
conformational change of CD73 from inactive to the active form, resulting in the complete inhibition of CD73 enzymatic activity without
causing a “hook effect.”

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Figure: Inhibition of soluble CD73 enzymatic activity and the binding epitope of CD73 antibodies.

Immunologically,  AMP  inhibited  interferon-gamma  (IFN-γ)  production  by  CD4  or  CD8  T  cells  through  adenosine  generation,
mimicking the suppressive tumor micro-environment where AMP is abundantly produced. However, this suppression could be reversed
by  uliledlimab  in  a  concentration-dependent  manner.  Moreover,  in  an  experimental  system  where  CD73  high  human  ovarian  cell  line
SK-OV-3 and human T cells were co-cultured, the addition of uliledlimab restored T cell activity as measured by IFN-γ production in a
concentration-dependent manner. In addition to the restoration of AMP-mediated T cell suppression, we found that uliledlimab treatment
could activate human B cells, as evidenced by the up-regulation of activation markers CD69 and CD83, as well as antigen presentation
markers CD86 and HLA-DR. Compared with T cells, the effects of uliledlimab on B cells were adenosine independent.

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Consistent with the in  vitro  results, in  vivo  monotherapy  of  uliledlimab  dose-dependently  inhibited  in  situ  tumor-derived  CD73
activity,  leading  to  the  anti-tumor  effect  in  a  mouse  xenograft  model  bearing  A375  melanoma  cells.  To  examine  whether  uliledlimab
could enhance the anti-tumor activity of PD-1 or PD-L1 antibodies, we evaluated the therapeutic effects of uliledlimab in combination
with a PD-1 antibody in the MC38 model using CD73 humanized mouse and PD-L1 antibody in the A375 xenograft model, respectively.
The combination treatments resulted in more potent inhibition of tumor growth than monotherapy of PD-(L)1 antibody or uliledlimab.

Figure: Inhibition of tumor growth and in situ CD73 activity by uliledlimab alone or in combination with a PD-1 or PD-L1 antibody.

Summary of Clinical Results

Phase 1 dose-escalation study in combination with atezolizumab

Data  from  the  U.S.  Phase  1  dose-escalation  study  of  uliledlimab  in  combination  with  atezolizumab,  which  were  presented  at  the
2021 ASCO annual meeting, showed that uliledlimab is safe and well-tolerated with no dose-limiting toxicity across all the dose cohorts
in  combination  with  atezolizumab.  All  treatment-related  adverse  events  were  either  Grade  1  or  Grade  2.  Uliledlimab  demonstrated  a
linear PK profile and reached full receptor occupancy on B cells at the middle and high dose levels with no “hook effect,” confirming a
normal PK/PD relationship and sigmoid dose-activity response.

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Patients  who  participated  in  the  study  had  advanced  cancers  and  had  exhausted  other  cancer  therapies.  Among  the  13  efficacy-
evaluable  patients  dosed  at  10  mg/kg  or  higher,  three  patients  had  complete  or  partial  responses  (ORR  =  23%)  and  three  had  stable
disease (DCR = 46%). The range of time on treatment for the six patients with a response and SD was from 187 to 485 days. The clinical
activity  was  observed  in  both  PD-(L)1  treatment  naïve  and  refractory  cancer  patients,  including  one  partial  response  patient  who
previously failed nivolumab. More importantly, all three responders were identified to exhibit higher co-expression of tumor CD73 and
PD-L1 as compared to non-responders, indicating a correlation between higher CD73 expression and clinical activity of uliledlimab and
a potential role of CD73 as a predictive biomarker to warrant further investigation.

Figure: Treatment duration for the combination therapy of uliledlimab and atezolizumab. Baseline expression of PD-L1 and CD73 in the

tumor as measured by immunohistochemistry (IHC) in responders (n=3) and non-responders (n=10).

Phase 2 clinical study of uliledlimab in combination with PD-1 antibody (toripalimab) in advanced NSCLC

In May 2022, we presented the preliminary clinical results of an ongoing phase 2 clinical study of uliledlimab in combination with
toripalimab (TUOYI®) in patients with NSCLC at the 2022 ASCO annual meeting. The results are largely consistent with those observed
in  first-in-human  Phase  1  clinical  trial  in  relation  to  favorable  safety,  pharmacokinetics  (PK),  and  pharmacodynamic  (PD)  profile  of
uliledlimab. Uliledlimab can be safely administered and well-tolerated up to the highest doses tested at 30 mg/kg Q3W, as a monotherapy
and as a combination therapy with toripalimab with no dose limiting toxicity (DLT). Uliledlimab exhibited a linear PK profile at doses ≥
5mg/kg and a dose-dependent receptor occupancy with no “hook effect” where the antibody loses its effectiveness at high concentrations.

As  of  December  2022,  70  patients  had  been  enrolled  in  the  same  Phase  2  study  of  uliledlimab  and  PD-1  combination  therapy  in
Stage IV NSCLC patients who were previously ineligible for standard-of-care treatment. In summary, the first data cutoff occurred in
March 2022, among 19 efficacy evaluable patients, 5 partial responses (5 PR, overall response rate [ORR]=26%) and 9 stable disease (9
SD, disease control rate [DCR] =74%) were observed. Approximately 80% of patients showed low PD-L1 expression in baseline tumor
samples  (tumor  proportion  score  [TPS]  1-49%  or  TPS<1%)  who  were  considered  less  responsive  to  a  PD-1  monotherapy  as
demonstrated  in  KEYNOTE-042  (ORR=16.9%  for  patients  with  PD-L1  TPS  1-49%).  Notably,  the  clinical  response  observed  in  this
patient cohort correlated with tumor CD73 expression. In a subgroup of 7 patients with high CD73 expression (≥35% expression level in
tumor cells or immune cells), ORR (4 PRs) was 57% with 100% DCR (3 SDs) (Table 1).

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Similar efficacy data were observed in August 2022 among 32 evaluable patients, and December 2022 among 45 evaluable patients,
showing a consistent trend of efficacy signals with an overall ORR >30% in all patients and a higher clinical response demonstrated by
ORR at approximately 50% in CD73 high expression patients. The efficacy data continue to mature for ORR and more importantly for
PFS as the study approaches a closure in 2023. The results have demonstrated that the higher clinical response of uliledlimab and PD-1
combination therapy correlates with high tumor CD73 expression in patients with advanced NSCLC.

Clinical Development Plan

Based on the role of CD73 as a predictive biomarker and encouraging clinical efficacy data based on approximately 70 advanced
NSCLC patients, we plan to initiate a biomarker-guided pivotal study evaluating clinical efficacy of the combination of uliledlimab and a
PD-1 antibody in Stage IV NSCLC patients in the second half of 2023. Another global study of uliledlimab in combination with a PD-1
antibody plus a chemotherapy in patients with advanced NSCLC is also planned in the second half of 2023. In parallel, a standardized
companion CD73 diagnostic kit is being developed with WuXi Diagnostics to be employed in the planned studies.

Givastomig (TJ-CD4B): A Novel, Tumor-Dependent T Cell Engager for Gastric and Other Cancers

Summary

Givastomig is a bi-specific antibody targeting both Claudin18.2 (CLDN18.2), a tumor antigen preferentially expressed in gastric and
pancreatic  cancers,  and  4-1BB,  a  co-stimulatory  molecule  on  T  cells.  CLDN18.2  is  a  tight  junction  molecule  whose  expression  is
normally  restricted  to  epithelial  cells  of  the  gastric  mucosa,  but  becomes  widely  expressed  in  select  tumors  (such  as  gastric  and
pancreatic cancers), making it a highly attractive tumor target.

In collaboration with ABL Bio, we developed givastomig, also known as ABL111, which provides two key advantages over current
CLDN18.2 antibodies and 4-1BB agonistic antibodies. Firstly, givastomig (also known as TJ033721) can bind to tumor cells even with
low  levels  of  CLDN18.2  expression,  making  it  more  suitable  for  a  broader  patient  population  with  various  expression  levels  of
CLND18.2. Secondly, only upon tumor cell engagement by givastomig are T cells stimulated by the 4-1BB antibody moiety, making the
4-1BB antibody arm only active at the tumor site. This localized T cell activation is conditional upon tumor engagement and is expected
to  exert  strong  anti-tumor  activity  while  minimizing  systemic  side  effects  such  as  liver  toxicity  seen  with  4-1BB  agents  in  previous
clinical studies.

In  November  2021,  we  and  ABL  Bio  jointly  announced  the  pharmacodynamic  data  and  safety  of  givastomig/ABL111  in  animal
models  and  cell  cultures  at  the  2021  SITC  annual  meeting.  The  data  are  summarized  as  below:  (1)  Potent  anti-tumor  activity  was
observed with the proliferation of immune cells within the tumor microenvironment (TME) as well as an increase in memory T cells in
the peripheral blood, suggesting long-term immunity against the tumor; (2) Givastomig was well tolerated in non-human primates and
did  not  induce  a  systemic  immune  response  or  liver  toxicity  up  to  levels  of  100  mg/kg;  and  (3)  Activation  of  immune  pathways  by
givastomig  was  demonstrated  by  a  pro-inflammatory  profile  and  increased  gamma  interferon-regulated  gene  expression  in  primary
human CD8+ T cells co-cultured with CLDN18.2 expressing cells. In March 2022, we announced that the U.S. FDA granted givastomig
Orphan Drug Designation (ODD) for the treatment of gastric cancer, including gastroesophageal junction carcinoma.

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Therapeutic Indications

Gastric  cancer  (GC)  is  one  of  the  leading  causes  of  cancer-related  deaths  worldwide.  Treatment  for  advanced  gastric  or  gastro-
esophageal  junction  (GEJ)  adenocarcinoma  involves  a  combination  of  chemotherapy,  targeted  therapies,  and  now,  immune  therapies.
However,  the  clinical  benefit  remains  modest  with  the  current  therapies.  Therefore,  there  is  a  significant  unmet  medical  need  for  GC
treatment. CLDN18.2 has been identified as a new GC tumor marker. Clinical data showed that over 70% of GC patients in Asia and
Europe  are  CLDN18.2  positive.  There  are  multiple  new  modalities  targeting  CLDN18.2  being  evaluated  with  some  success:  (1)
Monoclonal antibodies. Zolbetuximab is a CLDN18.2 monoclonal antibody acting through ADCC and CDC. It has demonstrated clinical
efficacy  (and  thus  target  validation)  when  combined  with  standard  chemotherapy  in  early  clinical  trials.  However,  the  efficacy  of
zolbetuximab  is  limited  to  CLDN18.2  high-expressing  tumors  (expression  cutoff  75%);  and  (2)  Antibody-drug  conjugates  (ADCs),
CAR-Ts, and CD3-based bispecific T cell engagers. Most of these studies are either at pre-clinical stage or early clinical development.
Despite  their  anticipated  high  efficacy,  these  treatment  modalities  suffer  from  significant  safety  concerns  associated  with  their  drug
toxicity or immunotoxicity.

Advantages of Givastomig

Givastomig is a novel bi-specific antibody, with one arm targeting Claudin18.2 (CLDN18.2) and the other targeting 4-1BB through
conditional  or  local  activation.  The  key  differentiation  of  givastomig  is  two-fold.  Firstly,  it  binds  to  tumors  with  a  wide  range  of
CLDN18.2 expression levels, including lower expression, as demonstrated in pre-clinical animal models. This feature makes givastomig
unique among the CLDN18.2-targeted agents, including ADC and zolbetuximab, whose anti-tumor activity is rather limited by higher
CLDN18.2 expression in the tumor. Secondly, the 4-1BB arm of givastomig is designed to function upon local tumor engagement as a
mechanism of conditional activation. This feature makes givastomig a unique T cell activator only localized at the tumor site without
systemic  toxicities,  e.g.  liver  toxicity  and  systemic  cytokine  release,  that  are  typically  associated  with  4-1BB.  In  addition,  givastomig
exhibits  less  gastrointestinal  (GI)  toxicity  than  what  is  commonly  observed  for  other  CLDN18.2  targeted  therapeutics.  As  such,
givastomig is clinically positioned to target: (1) gastric and pancreatic cancers that have lower CLDN18.2 expression and are considered
not eligible for treatment by zolbetuximab or CLDN18.2 ADC; and (2) gastric and pancreatic cancers with high CLDN18.2 expression
with more favorable safety profile over other CLDN18.2 therapeutic modalities.

Moreover, unlike previous generations of 4-1BB agonist antibodies with hepatotoxicity issues, givastomig binds to a distinct 4-1BB
epitope  that  only  triggers  4-1BB  signaling  upon  CLDN18.2  target  engagement  but  not  Fc  receptor  interaction.  This  unique  tumor-
associated  antigen  (TAA)-dependent  property  is  expected  to  drastically  reduce  peripheral  T  cell  activation  and  hepatic  and  systemic
immunotoxicity  without  compromising  anti-tumor  activity.  If  proven  in  the  clinic,  these  properties  enable  givastomig  to  be  highly
differentiated from other CLDN18.2-based compounds.

Figure: Schematic diagram of the overall structure of givastomig and its components. The 4-1BB agonistic antibody is a single-chain Fv
(scFv) connected to the C-terminus of a disabled Fc in a full anti-CLDNJ8.2 antibody via a flexible linker. The design allows the
molecule to fit in the immune synapse (left) and trans-activate T cells only upon tumor cell binding.

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Molecular Differentiation of Givastomig

Broad  and  potent  binding  to  CLDN18.2  positive  cells  by  givastomig.  As  shown  in  the  figure  below,  givastomig  consistently

exhibited stronger binding than the reference antibody zolbetuximab in cells with high, moderate, and even low levels of CLDN18.2.

Figure: More potent binding by givastomig than zolbetuximab to cells expressing various levels of CLDN18.2.

CLDN18.2-dependent 4-1BB Activation and T Cell Activity by givastomig. The ability of givastomig to ligate 4-1BB and activate
downstream signaling was tested in a co-culture of CLDN18.2-positive or negative target cells with T cells as effectors. The results in the
figure show that givastomig elicited by far the strongest 4-1BB-mediated NF-kB reporter activity, only in the presence of CLDN18.2+
cells  but  not  CLDN18.2-cells.  In  contrast,  urelumab  (first  generation  4-1BB  antibody)  induced  NF-kB  reporter  activity  regardless  of
target cell CLDN18.2 expression. In another experiment where human PBMCs were co-cultured with gastric cancer cells derived from
patient biopsies, givastomig was found to increase IL-2 production in a dose-dependent and CLDN18.2 expression-dependent manner.

Figure: Dose-dependent CLDN18.2-restricted T cell activity by givastomig but not urelumab in T cell and target cell co-culture system.

Left, co-culture scheme; Middle, NF-kB reporter activity; Right, IL-2 production.

Superior  in  vivo  Anti-tumor  Efficacy  of  Givastomig.  In  mice  grafted  with  tumor  cells  expressing  human  CLDN18.2,  givastomig
treatment twice a week for three weeks completely suppressed tumor cell growth in 6 out of 7 mice, delivering far better efficacy than
equimolar doses of single agents alone or in combination. Remarkably, when these tumor-free mice were re-challenged with a second
tumor implant a month after drug cessation, they remained totally protected, indicating that givastomig produced a durable anti-tumor
response.  Immune  cell  analysis  revealed  a  significant  increase  in  CD45+  and  CD8+  T  cells  that  infiltrated  the  tumor  tissue  after
givastomig treatment, but there were no changes in the periphery, suggesting that givastomig could turn a cold tumor into a hot tumor,
and the effect was localized. The anti-tumor efficacy of givastomig was dose-dependent, with a minimal efficacious dose of 0.4 mg/kg.

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Figure: Potent in vivo anti-tumor activity of givastomig in a mouse tumor model. Mice transgenic for humanized 4-1BB were grafted
with  MC38  cells  expressing  human  CLDN18.2.  Mice  were  treated  with  IgG  or  zolbetuximab  as  control,  or  with  parental
CLDN18.2 mAb, parental 4-1BB mAb, or both, and with givastomig (4 mg/kg) twice a week for 3 weeks. All mAbs were dosed at
the molar equivalent of 3 mg/kg.

Preclinical Pharmacodynamics and Safety. The pharmacodynamic data and safety of givastomig in animal models and cell cultures
were jointly announced by I-Mab and ABL Bio, Inc. at the 2021 SITC annual meeting. Analysis of the data found: (1) Potent anti-tumor
activity was observed with the proliferation of immune cells in the tumor microenvironment (TME) as well as an increase in memory T
cells  in  the  peripheral  blood,  suggesting  long-term  immunity  against  the  tumor;  (2)  Givastomig  was  well  tolerated  in  non-human
primates  and  did  not  induce  a  systemic  immune  response  or  liver  toxicity  up  to  levels  of  100mg/kg;  and  (3)  Activation  of  immune
pathways  by  givastomig/ABL111  was  demonstrated  by  a  pro-inflammatory  profile  and  increased  gamma  interferon-regulated  gene
expression in primary human CD8+ T cells co-cultured with CLDN18.2 expressing cells. In the four-week GLP monkey toxicity study,
givastomig was well tolerated with no major findings. There was no liver toxicity noted, nor was there evidence of systemic immune
activation.  There  were  mild  stomach  changes  that  were  considered  on-target  but  non-adverse  and  were  reversible.  NOAEL  was
determined to be 100 mg/kg with a sufficient therapeutic window.

Summary of Clinical Results

Phase 1 clinical trial of givastomig in patients with advanced or metastatic solid tumors:

The dose escalation part of the study reached 15 mg/kg without encountering dose limiting toxicity (DLT). By the end of 2022, eight
dose cohorts had been completed, with 38 subjects dosed. Givastomig was well tolerated, most of the treatment-related adverse events
(TRAEs)  were  grade  1  or  2  and  no  DLTs  were  reported.  There  is  a  dose-dependent  increase  of  drug  exposure  and  soluble  4-1BB  in
serum, suggestive of a favorable PK/PD profile and potentially a longer dosing interval with durable T cell activation. Partial response
(PR) and stable disease (SD) signals of givastomig monotherapy were observed across efficacious dose levels in gastric cancer patients
who failed multiple lines of prior therapies, including PD-1 therapy. More encouragingly, efficacy signals were also observed in patients
with  low  CLDN18.2  expression,  indicating  its  potential  to  treat  CLDN18.2  low-expressing  tumors  where  other  CLDN18.2  targeted
agents have a limited treatment effect. The complete Phase 1 data is expected to be presented at a medical conference in the second half
of 2023.

Clinical Development Plan

We are accumulating and evaluating the Phase 1 data to determine the RP2D. More data from the ongoing study are anticipated in
the  second  half  of  2023.  The  clinical  development  plan  is  being  finalized  to  initiate  a  Phase  2  study  in  the  second  half  of  2023.  In
parallel, we are developing a CLDN18.2 IHC assay for patient selection, which will be used in our future clinical studies. Furthermore,
we are in the process of exploring potential global partnership opportunities for givastomig.

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Other Clinical Assets

TJ-L14B: A PD-L1-Based Tumor-Dependent T-Cell Engager for Solid Tumors

Summary

TJ-L14B, also known as ABL503, is a bi-specific antibody targeting both PD-L1 and 4-1BB and was developed in collaboration
with ABL Bio. It was designed to overcome the limited efficacy of anti-PD-(L)1 and anti-4-1BB-related toxicity. Similar to givastomig,
4-1BB-stimulated T cell activity only occurs upon tumor cell binding by the anti-PD-L1 part of TJ-L14B. This localized T cell activation
is expected to exert strong anti-tumor activity while reducing systemic side effects such as liver toxicity. In a humanized mouse tumor
model, a short course of TJ-L14B treatment displayed greater anti-tumor efficacy than anti-PD-L1 or anti-4-1BB alone or in combination
and  showed  evidence  of  immunological  memory  response  that  resisted  tumor  re-challenge.  GMP  material  at  1000-L  scale  was
successfully produced. In January 2021, we received IND approval from the U.S. FDA for a Phase 1 study of TJ-L14B and dosed the
first patient in April 2021. We share the global rights with ABL Bio for TJ-L14B, except for in Greater China and South Korea where
ABL Bio has sole rights.

Therapeutic Indications

As previously stated, new therapeutic options are urgently needed for PD-(L)1 relapsed or refractory cancer patients. One strategy is
to  maximize  T  cell  activity  by  simultaneously  turning  off  co-inhibitory  pathways  such  as  PD-1/PD-L1  and  turning  on  co-stimulatory
pathways such as 4-1BB, which is one of the most potent T cell potentiators, as indicated earlier in this document. Several companies
have been developing PD-L1 x 4-1BB bi-specific antibodies, with the most advanced being developed by Genmab and Inhibrx, which
are both currently in Phase 2 trials.

Advantages of TJ-L14B

We  believe  that  based  on  publicly  available  information  and  preclinical  studies,  TJ-L14B  has  the  potential  to  be  a  highly
differentiated PD-L1 and 4-1BB bispecific antibody. In terms of format, some of the leading compounds are monovalent heterodimers
which may affect the potency of each arm and increase CMC complexity. In addition, as detailed earlier, the anti-4-1BB moiety of TJ-
L14B binds to a novel epitope that only triggers 4-1BB signaling upon tumor binding leading to a reduced cytokine release and hepatic
and  systemic  immunotoxicity  without  compromising  anti-tumor  activity.  TJ-L14B  is  also  more  specific  than  certain  competitor
molecules  in  terms  of  4-1BB  binding  relative  to  other  TNFR  families  of  co-stimulatory  molecules.  If  proven  in  clinical  trials,  these
potential advantages could differentiate TJ-L14B from other competing compounds.

Summary of Preclinical Results

PD-L1  level-dependent  4-1BB  Agonism  and  T  Cell  Activity.  The  ability  of  TJ-L14B  to  ligate  4-1BB  and  activate  downstream
signaling was tested in a co-culture of PD-L1+ target cells with T cells as effectors. The results in the figure show that the level of NF-kB
reporter activity elicited by TJ-L14B correlated with the level of PD-L1 expression on the target cells. In contrast, urelumab induced NF-
kB  reporter  activity  regardless  of  target  cell  PD-L1  expression.  Importantly,  TJ-L14B  promoted  the  proliferation  of  CD8+  tumor-
infiltrating lymphocytes obtained from human tumor samples in a similar extent to urelumab, while the parental anti-PD-L1 and anti-4-
1BB antibodies, either alone or in combination, had no effect, confirming a strict PD-L1-dependence on T cell stimulation by TJ-L14B.

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Figure: Dose-dependent  PD-L1-restricted  T  cell  activity  by  TJ-L14B/ABL503  but  not  urelumab  in  a  co-culture  system  of  T  cells  and

target cells expressing different levels of PD-L1 (as represented by mean fluorescent intensity (MFJ) values).

Superior in vivo Anti-tumor Efficacy of TJ-L14B. In mice grafted with tumor cells expressing human PD-L1, TJ-L14B treatment
every three days for four times suppressed tumor cell growth in a dose-dependent manner, delivering far better efficacy than equimolar
doses of single agents alone or in combination. Remarkably, when the treated tumor-free mice were re-challenged with a second tumor
graft after drug cessation, they remained protected, indicating that TJ-L14B produced a durable anti-tumor response.

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Figure: Potent in vivo anti-tumor activity of TJ-L14B in a mouse tumor model. Mice transgenic for humanized 4-1BB were grafted with
MC38 cells expressing human PD-L1. Mice were treated with the indicated antibodies every three days for four times. Tumor-
free animals were re-challenged with a second dose of the tumor on day 40 with treatment-naïve animals as a control. TJ-L14B
is also known as ABL503.

Preclinical Safety. In contrast to certain competitor PD-L1 x 4-1BB bispecific antibodies, TJ-L14B did not induce cytokine release
(including IL-6 and TNF-α) up to 0.83 mg/ml, which corresponded to a human equivalent dose of 15 mg/kg. Animal PK and toxicity
studies have also been completed. Results of these studies indicate that the NOAEL was 15 mg/kg/dose. This dose was also considered
the  highest  non-severely  toxic  dose.  A  starting  dose  of  0.7  mg  is  proposed  for  the  first-in-human  (FIH)  study.  There  is  a  >3000-fold
safety margin between the proposed FIH dose and the nonclinical safety assessment studies including in vitro cytokine release assays and
GLP toxicology studies.

Clinical Development Plan

Phase 1 dose-escalation and dose-expansion study of TJ-L14B is ongoing in patients with progressive locally advanced or metastatic
solid tumors who are relapsed or refractory following prior lines of treatment with no available treatment options. The dose escalation
has reached an efficacious dose level. TJ-L14B was well tolerated, and MTD was not reached. Clinical PK data indicated a linear dose
profile and early clinical efficacy signals were observed. The dose expansion part of TJ-L14B will be initiated in the second half of 2023,
both in the U.S. and Korea. The trial is being conducted by our partner ABL Bio. More data will be generated as the trial progresses.

Efineptakin  alfa  (TJ107):  The  World’s  First  and  Only  Long-acting  Recombinant  Human  IL-7  for  Cancer  Treatment-related
Lymphopenia and Cancer Immunotherapy

Summary

Efineptakin alfa is the world’s first and only long-acting recombinant human interleukin-7 (“rhIL-7”), which is being developed as a
T  lymphocyte-booster  for  cancer-related  immunotherapy.  This  Phase  2  clinical-stage  asset  is  positioned  as  a  monotherapy  for  the
treatment  of  cancer  patients  with  lymphopenia  because  of  its  unique  properties  of  increasing  anti-tumor  T  cell  numbers  and  as
combination immunotherapy with a PD-1 or PD-L1 antibody because of its potential synergism with PD-1/PD-L1 therapy. We obtained
the rights from Genexine for the development, manufacturing and commercialization of efineptakin alfa in Greater China.

Efineptakin  alfa  has  an  advantage  over  other  T  lymphocyte  cytokines  with  its  therapeutic  potential  in  oncology.  Preclinical  and
clinical  results  generated  so  far  indicate  that  efineptakin  alfa  has  a  selective  and  favorable  immune  function  profile  over  recombinant
human  interleukin-2  (rhIL-2)  in  that  efineptakin  alfa  activates  and  expands  tumor-attacking  CD4,  CD8,  and  natural  killer  T  cells,  but
spares tumor-protecting Treg cells.

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We are running two Phase 2 clinical trials for the development of efineptakin alfa in China. In January 2022, the first patient was
dosed in a Phase 2 study of efineptakin alfa in combination with pembrolizumab (Keytruda®) in patients with advanced solid tumors.
The study follows a “basket” trial design to include selected tumor types, including triple-negative breast cancer (TNBC) and squamous
cell cancer of the head and neck (SCCHN). The other Phase 2 trial is on track in patients with newly diagnosed glioblastoma multiforme
(GBM) with standard concurrent chemoradiotherapy.

Mechanism of Action

IL-7 is a cytokine essential for the survival and homeostatic proliferation of naive and memory T cells (see figure below). IL-7 is
critically  involved  in  restoring  T  cells  to  normal  levels  in  the  event  of  lymphopenia  by  stimulating  T  cell  proliferation.  It  exerts  its
functions  by  binding  to  and  activating  the  IL-7  receptor,  which  is  expressed  primarily  on  lymphocytes,  including  the  lymphoid
precursors,  developing  T  and  B  cells,  naive  T  cells,  and  memory  T  cells,  but  not  on  tumor-protecting  Tregs.  Efineptakin  alfa  as  a
monotherapy may enhance anti-tumor immunity by augmenting the number and functionality of T cells. Moreover, efineptakin alfa in
combination with an immune checkpoint inhibitor, cancer vaccine, or CAR-T may improve the anti-tumor response by restoring T cell
numbers, reconstituting T cell pools, and reinvigorating exhausted T cells.

Figure: Role of IL-7 in T cell maintenance and proliferation.

Therapeutic Indications

One of the target therapeutic indications of efineptakin alfa is cancer treatment-related lymphopenia. Cancer patients who undergo
chemotherapy and/or radiation therapy often develop cancer treatment-related lymphopenia, further damaging their already compromised
immune systems and ability to fight against cancers. Advanced solid tumors are another indication for efineptakin alfa as a combination
therapy  with  PD-1  therapy.  As  more  than  60%  of  cancer  patients  either  do  not  respond  or  respond  poorly  to  current  PD-1/PD-L1
therapies, there are intense attempts to identify an effective agent that can work synergistically with PD-1/PD-L1 therapies to increase the
probability of treatment success. Efineptakin alfa is believed to provide such a treatment option, which is supported by preclinical reports
that  IL-7  exhibits  a  synergistic  effect  with  PD-1/PD-L1  therapies  in  the  treatment  of  cancers  and  by  the  clinical  data  reported  by
Genexine/NeoImmuneTech (see elsewhere in this section).

Advantages of Efineptakin alfa

Efineptakin alfa has an advantage over other T lymphocyte cytokines with therapeutic potential in oncology. Preclinical and clinical
results  generated  so  far  indicate  that  efineptakin  alfa  has  a  favorable  immune  function  profile  over  recombinant  human  interleukin-2
(“rhIL-2”)  in  that  efineptakin  alfa  activates  and  expands  tumor-attacking  CD4,  CD8,  and  natural  killer  T  cells,  but  spares  tumor-
protecting Treg cells. Owing to its preferred immune function and molecular profiles demonstrated in preclinical and Phase 1/2 clinical
trials,  we  believe  that  efineptakin  alfa  is  a  superior  T  cell  cytokine  investigational  drug  for  cancer  treatment-related  lymphopenia  and
cancer immunotherapy.

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Efineptakin  alfa,  as  an  engineered  rhIL-7,  has  the  advantages  of  improved  stability  and  half-life  extension  through  Genexine’s
proprietary hybrid fragment crystallizable region (“hyFc”). Introducing a few hydrophilic amino acid residues to the N-terminus of IL-7
overcomes stability issues that hampered the development of previous rhIL-7 drug candidates. Furthermore, the application of the hyFc
technology enhances IL-7’s function, increases its half-life (from 48 to 112 hours after a single subcutaneous dose in clinical studies),
and allows for a robust purification process. The hyFc in efineptakin alfa is also non-cytolytic, so it will not damage the T cells to which
it binds.

Summary of Clinical Results

Clinical Trials in cancer patients in China by I-Mab

We  have  completed  a  Phase  1  clinical  trial  in  China  in  patients  with  advanced  solid  tumors  and  presented  the  topline  safety  and

PK/PD data at the 2021 Chinese Society of Clinical Oncology (CSCO) annual meeting in September.

As of August 27, 2021, a total of 32 patients (17 colorectal cancer, 5 gastric cancer, 5 lung cancer, 3 head and neck cancer, 1 liver
cancer, and 1 breast cancer) were enrolled and received efineptakin alfa treatment at five dose levels, including 240 µg/kg (n = 3), 480
µg/kg (n = 3), 720 µg/kg (n = 4), 960 µg/kg (n = 11) and 1200 µg/kg (n = 11). No DLTs were reported, and MTD was not reached. The
most  common  TEAEs  were  Grade  1  or  2  injection  site  reactions  (ISRs),  occurring  in  22  of  32  patients  (68.8%),  which  showed  local
symptoms  including  injection-site  pain  (31.3%),  injection-site  swelling  (28.1%),  injection-site  pruritus  (28.1%)  and  injection-site
erythema (25.0%). The ISRs were able to be controlled after topical or antihistamines treatment. Efineptakin alfa exposure (Cmax and
AUClast)  tended  to  increase  the  dose  proportionally  in  the  240-1200  µg/kg  range.  Mean  T1/2  ranged  from  45  to  187  hours,  with  no
accumulation observed. Dose-dependent increases in absolute lymphocyte count (ALC) and CD3+ T cells, including naive and memory
subsets, were observed on Day 21 post the first dose in both lymphopenia (ALC<1000/µL) and normal (ALC>1000/µL) patients, while
Treg cells were not significantly affected and CD8/Treg ratio was improved at 1200 µg/kg cohorts. More importantly, IFN-γ secreting T
cells were amplified, and TCR diversity was significantly increased, suggesting enhanced anti-tumor potential after treatment.

Clinical Trials conducted in the U.S. by Genexine/NeoImmuneTech

Efineptakin  alfa  and  pembrolizumab  combination  therapy  for  solid  tumors.  The  data  from  NeoImmuneTech  dose-escalation  trial
(NCT04332653) presented at ASCO 2021 showed that MTD was not reached and efineptakin alfa was tolerable and safe in combination
therapy  with  pembrolizumab  in  patients  with  advanced  solid  tumors.  Of  the  11  evaluated  patients,  6  patients  showed  controlled
progression (DCR = 55%), and increased median progression-free survival (mPFS) can be estimated. It also significantly increased T cell
numbers in both tumor specimens and the peripheral blood in patients treated with efineptakin alfa. Our partner Genexine presented the
data  from  a  Phase  1b/2  Keynote-899  study,  presented  at  ASCO  2022,  showed  that  combination  treatment  of  efineptakin  alfa  with
pembrolizumab (Keytruda®) induced ORR of 15.7% (8/51) for phase 1b and 21.2% (7/33) for phase 2 study in patients with metastatic
TNBC. Notably, the ORR in patients with PD-L1 CPS ≥ 10 was 60% (6/10) compared to 0% (0/15) in patients with PD-L1 CPS < 10,
which warrants a further study of a combination regimen for patients with PD-L1 CPS ≥ 10.

Efineptakin alfa in combination with CAR-T therapy. In December 2022, NeoImmuneTech presented its recent data from an ongoing
Phase 1b study evaluating safety, preliminary anti-tumor activity and T cell reconstitution with efineptakin alfa administered following
tisagenlecleucel (Kymriah®), a CD19-directed CAR-T therapy in patients with relapsed/refractory large B-cell lymphoma, at the 2022
American Society of Hematology (ASH) annual meeting. The data showed that efineptakin alfa treatment following tisagenlecleucel was
safe and well-tolerated with no induction of cytokine release syndrome (CRS) or immune effector cell-associated neurotoxicity syndrome
(ICANS), nor proinflammatory cytokines. Notably, efineptakin alfa treatment led to a sustained increase in ALC and increased CAR-T
cell absolute numbers in the peripheral blood. Preliminary anti-tumor efficacy was also observed, particularly at dose level 3=240 µg/kg.

Clinical Development Plan

By  leveraging  the  clinical  results  generated  by  Genexine/NeoImmuneTech  so  far,  we  aim  to  advance  the  clinical  development  of
efineptakin alfa for approvals in Greater China. Our clinical development plan is focused on evaluating efficacy and safety of efineptakin
alfa  in  cancer  patients  (1)  as  a  broader  oncology  care  treatment  for  those  who  suffer  from  lymphopenia  commonly  induced  by
chemotherapy and radiation therapy and (2) as a combination therapy with PD-1 therapy to achieve better clinical response and efficacy.
A Phase 2 study (NCT05145907) has been initiated following a “basket” trial design to include selected tumor types, including triple-
negative breast cancer (TNBC) and squamous cell cancer of the head and neck (SCCHN). The first patient was dosed in the Phase 2
study of efineptakin alfa in combination with pembrolizumab (Keytruda®) in patients with advanced solid tumors in January 2022.

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TJ210/MOR210: A Novel C5aR1 Antibody for Cancers

Summary

TJ210  is  a  fully  human,  high-affinity  antibody  against  human  C5aR1  for  the  treatment  of  cancers.  Certain  tumors  produce  large
amounts  of  complement  factor  C5a  to  attract  C5aR1-expressing  myeloid-derived  suppressor  cells  (“MDSCs”),  M2  macrophages,  and
neutrophils. These myeloid cells critically contribute to an immunosuppressive microenvironment as part of the evading mechanism of
tumors and are associated with poor prognosis and resistance to PD-1/PD-L1 therapies in many cancers. TJ210 is designed to block the
interaction between C5a and its receptor, thereby potentially neutralizing the immune suppressive function of C5a and enabling immune
cells to attack the tumor.

Preclinical  studies  have  shown  that  targeting  the  C5aR-C5a  axis  exerts  anti-tumor  activity  with  immune  checkpoint  inhibitors.
Furthermore, in vitro activity was observed to block the C5a/C5aR pathway at very high C5a concentrations, leading to a long duration
of action. TJ210 demonstrated a good safety profile with no observed adverse effects up to the highest dose tested in non-clinical safety
studies.  The  in vitro  and  in vivo  preclinical  studies  are  ongoing  to  explore  and  validate  the  most  effective  combination  partner(s)  of
TJ210  in  addition  to  the  PD-(L)1  antibody.  We  obtained  the  rights  from  MorphoSys  for  the  development,  manufacturing  and
commercialization of TJ210 in Greater China and South Korea, and are co-developing the asset globally with MorphoSys.

Mechanism of Action

TJ210 is a C5aR-directed antagonist monoclonal antibody. C5aR (also known as C5aR1 or CD88) is a GPCR and is one of the two
high-affinity  receptors  for  its  ligand,  C5a.  An  extensive  investigation  of  the  TME  has  uncovered  molecular  mechanisms  linking
imbalanced complement activation and cancer progression. Upon activation, complement components, including C5a, are released into
the  TME,  inducing  the  recruitment  of  immunosuppressive  cells,  including  TAMs,  TANs,  MDSCs,  Tregs,  and  DCs,  thus  inhibiting
cytotoxic T-cell attack on the tumor. Immunosuppressive cytokines, such as Arg-1, IL-10, and TGF-ß, are also released. In addition, C5a
can  interact  with  its  receptors  to  promote  angiogenesis  through  upregulation  of  growth  factors  and  enhancement  of  endothelial  cell
proliferation. C5a generation through an autocrine manner or intracellular protease from cleavage of C5 produced by tumor cells can act
on  the  surface  receptors  and  induce  signaling  pathways  such  as  PI3K-AKT,  leading  to  the  promotion  of  tumor  cell  adhesion,
proliferation, migration, and stemness.

Figure: Role of C5a/C5aR axis in the tumor micro-environment.

Therapeutic Indications

Traditionally  regarded  as  the  critical  innate  immune  response,  complement  components,  especially  C5a/C5aR  axis,  have  been
demonstrated  to  be  major  contributors  to  immune  suppression  in  the  tumor  micro-environment  (“TME”),  thereby  disabling  T  cell
function  and  promoting  tumor  progression.  Correspondingly,  blockade  of  C5a/C5aR  signaling  bears  great  potential  for  cancer
immunotherapy in combination with immune check pointers or T cell engagers. High expression of C5aR in TME is correlated with poor
diagnostic  outcomes  in  various  tumors,  including  colorectal  carcinoma,  renal  cancer,  gastric  cancer,  and  a  number  of  squamous
carcinomas.  In  addition,  activation  of  the  complement  cascade  in  those  tumors  either  plays  a  critical  role  in  cancer  development  or
correlates with tumor grade and metastatic status.

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Advantages of TJ210

TJ210  is  a  human  IgG1  subclass  monoclonal  antibody  that  specifically  binds  to  the  C5aR  and  thereby  blocks  interaction  with  its
ligand, the complement component 5a (“C5a”). Mutation introduced in the Fc region of IgG1 silent the Fc-mediated-effector function.
C5aR1 blocking plays an important role in the development and/or progression of various cancers and potentially autoimmune diseases.
TJ210  exerts  strong  antitumor  activity  by  blocking  the  activation  and  migration  of  C5aR1-expressing  myeloid  cells  and  has  a
differentiated  potential  if  approved,  as  it  binds  to  a  novel  epitope  and  possesses  superior  functional  properties.  Compared  to  the
competitor antibody IPH5401 from Innate Pharma, TJ210 shows a more potent functional response, especially when C5a concentrations
are  high,  indicating  a  stronger  potential  for  TJ210  at  pathologic  concentrations.  Key  results  from  preclinical  studies  show  that  TJ210
selectively  binds  to  the  N-terminus  of  C5aR1  with  high  affinity  and  is  not  cross-reactive  to  other  related  G-protein-coupled  receptors
(GPCRs). TJ210 also demonstrated a good safety profile of a four-week repeat dose GLP toxicity study in cynomolgus monkeys, with no
observed adverse effects up to the highest dose tested at 200mg/kg and no impact on neutrophils.

Summary of Preclinical Results

TJ210  exerts  strong  anti-tumor  activity  by  blocking  the  activation  and  migration  of  C5aR1-expressing  myeloid  cells  and  has  the
potential  to  be  a  differentiated  agent  as  it  binds  to  a  novel  epitope  and  possesses  superior  functional  properties.  Compared  to  the
competitor antibody IPH5401 from Innate Pharma, TJ210 shows a more potent functional response, especially when C5a concentrations
are high, indicating TJ210’s potential at pathologic concentrations.

Figure: Inhibition  of  C5a-induced  CD11b  upregulation  by  C5aR  mAb  in  human  whole  blood  assay.  Briefly,  heparinized  blood  was
incubated with serial dilutions of TJ210 (MOR210) or IPH5401, and then human C5a was added (15 or 150 nM) and further
incubated. Fluorescence was measured by FACS Array. The median fluorescence intensity (MEI) of the gated granulocytes or
monocytes  in  the  CD11b-PE  channel  was  calculated.  The  inhibition  curves  were  generated  using  GraphPad  Prism  via  the
nonlinear regression function.

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In the four-week GLP toxicity study of TJ210, cynomolgus monkeys tolerated TJ210 up to 200 mg/kg, which is the no-observed-
adverse-effect-level (NOAEL) in that study, without impact on neutrophils. TJ210 showed a linear PK profile in monkeys, with a half-
life over 100 hours, consistent with a typical IgG1 monoclonal antibody.

Figure: Cynomolgus monkeys were administered a single IV injection of TJ210 at 10, 25, and 75 mg/kg. Blood samples were collected at

multiple time slots for concentration-time analysis using a validated MSD method.

Clinical Development Plan

In September 2020, the U.S. FDA approved our IND to initiate a Phase 1 clinical trial to evaluate the safety, tolerability, MTD or
maximum administered dose (MAD), PK and PD of TJ210. In January 2021, we announced the dosing of the first patient in this trial,
and patient recruitment for dose escalation was completed in the second quarter of 2022.

In  June  2022,  our  partner  MorphoSys  entered  into  an  equity  participation  and  license  agreements  with  Human  Immunology
Biosciences, Inc. (“HIBio”), a biotech company focusing on developing precision medicines for autoimmune and inflammatory diseases,
for  development  and  commercialization  of  felzartamab  and  MOR210/TJ210  outside  of  Greater  China.  Under  the  terms  of  C5aR
Agreement, we obtained exclusive rights to develop and commercialize MOR210/TJ210 in Greater China and South Korea and share
economics upon certain clinical milestones in the U.S.

Selected Preclinical Assets

TJ-C64B: A Novel Bi-Specific Antibody for Ovarian and Other Cancers

TJ-C64B  is  another  bispecific  molecule  developed  by  leveraging  our  conditional  4-1BB  platform,  which  has  the  advantage  of
minimizing  systemic  toxicities,  i.e.  liver  toxicity,  with  an  increased  therapeutic  window.  It  is  specifically  designed  to  simultaneously
target  Claudin6  (CLDN6),  uniquely  expressed  in  specific  cancer  types,  including  ovarian  cancer  cells,  and  engage  4-1BB  through  a
unique  conditional  activation  mechanism.  CLDN6  is  hardly  detectable  in  normal  adult  tissues  to  ensure  target  specificity  for  ovarian
cancers. In addition to the T cell activation through 4-1BB stimulation upon CLDN6 engagement, TJ-C64B has an added function of
specifically depleting CLDN6-expressing tumor cells and intra-tumor regulatory T cells highly expressing 4-1BB, which differentiates it
from other 4-1BB bispecific antibodies under clinical development. As published in AACR 2022, preclinical data showed that TJ-C64B
enhances CLDN6-dependent T cell activation upon the engagement of cancer cell lines with different CLDN6 expression levels. In a
syngeneic mouse model, TJ-C64B treatment induces strong anti-tumor activity with complete tumor regression in all tested mice at the
dose  of  4.5  mg/kg  and  durable  resistance  against  tumor  re-challenge  through  the  immunological  memory  response.  Further,  ex  vivo
analysis confirms localized immune activation by TJ-C64B as evident by the increased CD8+ T cells in tumors.

We have achieved candidate selection and are actively progressing the preclinical development of the candidate molecule.

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TJ-L1IF: A Novel PD-L1/IFN-α Antibody-Cytokine Fusion Protein Designed for PD-(L)1 Resistant Cancers

TJ-L1IF  is  a  novel  PD-L1/IFN-α  antibody-cytokine  fusion  protein  specifically  designed  for  the  treatment  of  PD(L)-1  resistant
tumors through the addition of a strong immune adjuvant (interferon-alpha, IFN-α) to convert “cold” tumor to “hot” tumor on top of a
PD-L1 antibody to achieve superior anti-tumor activity. Novel drug molecules with such a design are badly needed to address the current
clinical challenges where a majority of cancer patients do not or poorly respond to PD-1/PD-L1 therapies. IFN-α was the first cytokine
approved for cancer treatment, but its clinical use is limited by its systemic toxicities.

TJ-L1IF is composed of a PD-L1 antibody with an engineered IFN-α2b fused at the C-terminus of IgG. It is a prodrug in that the
IFN-α2b moiety is masked by a PEG group through a protease-cleavable linker rendering the drug inactive in the circulation to avoid
systemic toxicities. Once the drug accumulates at the tumor site through PD-L1 antibody targeting, the linker is cleaved by proteases that
are highly expressed in the tumor environment to achieve specific activation only at the tumor site. This unique property of TJ-L1IF has
been  validated  in  a  series  of  in  vitro  and  in  vivo  studies,  in  which  TJ-L1IF  demonstrated  good  plasma  stability,  benign  safety  in
cynomolgus  monkeys,  and  superior  anti-tumor  activity  in  the  PD-1/PD-L1  resistant  tumor  models  as  compared  to  PD-L1  antibody  or
IFN-α  used  either  alone  or  in  combination.  After  the  first  dose  of  treatment,  the  active  format  of  the  drug  was  quickly  detected  and
accumulated in the tumor but not in the periphery, confirming the local delivery and conversion to an active form of IFN-α at the tumor
site.

Licensing and Collaboration Arrangements

A. In-Licensing Arrangements

Licensing Agreement with MorphoSys (Felzartamab)

In November 2017, we entered into a license and collaboration agreement with MorphoSys AG (“MorphoSys”) with respect to the
development and commercialization of felzartamab (MOR202/TJ202), MorphoSys’s proprietary investigational antibody against CD38
(the “CD38 product”).

Under this agreement, MorphoSys granted to us an exclusive, royalty-bearing, sublicensable license to exploit MOR202/TJ202 for

any human therapeutic or diagnostic purpose in the licensed territory, namely Greater China.

Pursuant  to  this  agreement,  we  granted  to  MorphoSys  an  exclusive  license  to  our  rights  in  any  inventions  that  we  make  while

exploiting MOR202/TJ202 under this agreement, solely to exploit MOR202/TJ202 outside of Greater China.

We  also  received  the  right  to  sublicense  to  affiliates  and  third  parties  acting  as  contract  manufacturers,  contract  research
organizations, distributors or wholesalers without prior written consent, as well as the right to sublicense to other third parties with the
prior written consent of MorphoSys, not to be unreasonably withheld, delayed or conditioned.

We  are  solely  responsible  for  the  development  and  commercialization  of  MOR202/TJ202  in  Greater  China,  and  must  use  commercially

reasonable efforts as we develop and commercialize MOR202/TJ202.

Pursuant to this agreement, we paid to MorphoSys an upfront license fee of US$20.0 million. We also agreed to make milestone payments
to MorphoSys, conditioned upon the achievement of certain development, regulatory and commercial milestones, in the aggregate amount of
US$98.5 million. Such milestones include first patient dosed in human clinical trials, marketing approval, and first annual net sales of CD38
products covered by the agreement in excess of a certain amount. As of the date of this annual report, we have made milestone payments of
US$8.0 million to MorphoSys.

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In addition, we are required to pay tiered low-teens royalties to MorphoSys on a country-by-country and product-by-product basis during
the term, commencing with the first commercial sale of a relevant licensed product in Greater China. The end of the royalty term is linked to
(i)  the  expiration,  invalidation  or  abandonment  of  relevant  patent  claims,  (ii)  10  years  from  the  date  of  first  commercial  sale  of  such  CD38
product,  and  (iii)  marketing  exclusivity  for  such  relevant  licensed  product.  To  date,  we  have  not  paid  any  royalties  to  MorphoSys.  Unless
terminated earlier in accordance with the terms thereof, this agreement will remain in effect until the expiration of our last payment obligation
under the agreement. This agreement may be terminated by either party for the other party’s uncured material breach, bankruptcy or insolvency.
In addition, we have the right to terminate the agreement for convenience at any time after a certain specified time period upon a notice period
that varies based upon the stage of development. MorphoSys has the right to terminate the agreement if we challenge its patents. To the extent
that we terminate for convenience or MorphoSys terminates for our material breach, bankruptcy, insolvency or patent challenge, among other
things, all licenses and rights granted by MorphoSys to us will automatically terminate and the licenses and rights granted by us to MorphoSys
will  survive.  In  the  event  of  such  termination,  we  must  also  grant  to  MorphoSys  an  exclusive,  royalty-bearing,  sublicensable  license  under
certain of our intellectual property relating to the licensed product to exploit MOR202/TJ202 for any human therapeutic or diagnostic purpose in
Greater China.

Assignment and License Agreement with Genexine

In October 2015, I-Mab Bio-tech Tianjin Co., Ltd., known as Tasgen Bio-tech (Tianjin) Co., Ltd. at the time (which subsequently became
our  subsidiary  following  the  Acquisition)  (“I-Mab  Tianjin”),  entered  into  an  intellectual  property  assignment  and  license  agreement  with
Genexine,  Inc.  (“Genexine”),  further  amended  in  December  2017,  with  respect  to  four  licensed  products,  namely  GX-H9  (TJ101),  GX-G3
(TJ102),  GX-G8  and  GX-P2  and  one  assigned  product,  GX-G6  (TJ103).  Under  this  agreement,  Genexine  (i)  granted  to  I-Mab  Tianjin  an
exclusive, non-transferable, sublicensable license to use and otherwise exploit certain intellectual property to engage in pre-clinical and clinical
development, manufacturing, sale and distribution of the above-mentioned licensed products for (A) the treatment of any disease with respect to
GX-H9 and GX-G3 in China (which, for clarity excludes, Hong Kong, Macau and Taiwan), (B) the treatment of chemically induced diarrhea,
with respect to GX-G8 anywhere in the world and (C) the treatment of rheumatoid arthritis and lupus (not including psoriasis) with respect to
GX-P2 anywhere in the world and further (ii) assigned to I-Mab Tianjin a certain Chinese patent and related know-how related to the assigned
product (TJ103) and granted I-Mab Tianjin an exclusive license to exploit the assigned intellectual property to engage in pre-clinical and clinical
development, manufacturing, sale and distribution of the assigned product (TJ103) for the treatment of any disease in China (which, for clarity,
excludes Hong Kong, Macau and Taiwan). I-Mab Tianjin will also receive an exclusive license to any improvements that Genexine develops or
acquires related to any of the aforementioned products.

Under this agreement, I-Mab Tianjin paid an aggregate upfront license fee of US$13.0 million in relation to the patents, patent applications,
know-how,  data  and  information  in  connection  with  the  four  licensed  products  and  a  purchase  fee  of  US$7.0  million  in  connection  with  the
assigned  product  (TJ103).  I-Mab  Tianjin  also  agreed  to  make  certain  milestone  payments,  including  milestone  payments  in  the  aggregate
amount  of  US$40.0  million  for  GX-H9,  US$25.0  million  for  TJ103  and  US$15.0  million  for  GX-G3,  conditioned  upon  the  achievement  of
certain net sales targets.

The term of this agreement is 30 years unless terminated earlier in accordance with the terms thereof. This agreement may be terminated
by  either  party  for  the  other  party’s  uncured  material  breach,  bankruptcy  or  insolvency,  in  the  event  of  force  majeure  or  a  PRC  regulatory
requirement  to  make  material  alteration  or  modification  to  the  contractual  rights  or  obligations  of  this  agreement  which  has  the  effect  of
preventing the parties from achieving their business objectives, or upon the termination of a certain subscription agreement or a certain joint
venture agreement entered into by I-Mab Tianjin and Genexine in October 2015 (provided that the termination of such subscription agreement
or  joint  venture  agreement  was  not  due  to  the  material  breach  of  the  party  electing  to  terminate  this  agreement).  Genexine  has  the  right  to
terminate  the  agreement  if  we  fail  to  use  commercially  reasonable  efforts  to  obtain  regulatory  approvals  for  commercializing  the  licensed
product in the agreed period due to our own fault or if we cease to pursue clinical development or product registration or to conduct licensed
activities on a reasonable scale as approved by our board of directors. During the term of this agreement, if I-Mab Tianjin develops or acquires
any improvement, modification or alteration to the licensed products, I-Mab Tianjin will become the sole legal owner of such improvements,
modifications  and  alterations  and  has  full  power,  right  and  authority  to  grant  licenses  or  transfer  ownership  of  the  same.  I-Mab  Tianjin  is
required to promptly notify Genexine in writing giving details of any such improvements, modifications or alterations and provide Genexine
with  such  explanations  or  trainings  to  enable  Genexine  to  legally  and  effectively  use  the  same.  Additionally,  I-Mab  Tianjin  should  grant  to
Genexine a fully paid up, royalty-free, exclusive license to use any such improvements, modifications and alterations anywhere outside of the
territory for which I-Mab Tianjin is licensed under this agreement.

In November 2018, we entered into an intellectual property license agreement with Genexine with respect to GX-G3 (TJ102). Under
this  agreement,  Genexine  granted  to  us  an  exclusive,  non-transferable,  sublicensable  license  to  use  and  otherwise  exploit  certain
intellectual property to engage in pre-clinical and clinical development, manufacturing, sale and distribution of GX-G3 for the treatment
of  any  disease  in  Taiwan  and  Hong  Kong.  We  will  also  receive  an  exclusive  license  to  use  any  improvements  related  to  GX-G3  that
Genexine develops or acquires free of charge in Taiwan and Hong Kong. Under this agreement, the scope of improvements is limited to
GX-G3  and  does  not  include  the  hyFc  platform.  We  paid  an  upfront  license  fee  of  US$0.1  million  and  milestone  payments  of
US$0.9 million to Genexine. No other milestone payments are due under this agreement.

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Licensing Agreement with Genexine (Efineptakin alfa)

In December 2017, we entered into an intellectual property license agreement with Genexine with respect to GX-I7, a long-acting
IL-7 cytokine. Under this agreement, Genexine granted to us an exclusive, sublicensable and transferable license to use and otherwise
exploit certain intellectual property (including improvements subsequently developed or acquired by Genexine) in connection with the
pre-clinical and clinical development, manufacturing, sale and distribution of GX-I7 to treat cancers in the field of oncology in China,
Hong Kong, Macau and Taiwan.

Under this agreement, we paid an upfront license fee of US$12.0 million to Genexine. We also agreed to make milestone payments
in the aggregate amount of US$23.0 million, conditioned upon the achievement of certain development milestones, including completion
of Phase 2 and Phase 3 clinical studies and NDA or BLA approval in any of China, Hong Kong, Macau or Taiwan.

Further, we agreed to make milestone payments in the aggregate amount of US$525.0 million, conditioned upon the achievement of
certain  cumulative  net  sales  of  GX-I7  up  to  US$2,000  million.  We  also  are  required  to  pay  Genexine  a  low-single-digit  percentage
royalty in respect of the total annual net sales of GX-I7. The aforesaid milestones and royalties (other than the upfront payment) will be
reduced  by  50%  following  the  entry  of  a  generic  version  of  GX-I7  in  China,  Hong  Kong,  Macau  and  Taiwan  without  the  consent  or
authorization of us or any of our sublicensees. As of the date of this annual report, no milestone payments or royalties are due under this
agreement.

Unless terminated earlier in accordance with the terms thereof, this agreement will remain in effect until the later of (i) the expiry of
the last to expire patent of the licensed intellectual property that includes a valid claim for China, Hong Kong, Macau or Taiwan and that
covers  the  composition  of  GX-I7;  and  (ii)  15  years  from  the  date  of  the  first  commercial  sale  of  GX-I7.  This  agreement  may  be
terminated  by  either  party  for  the  other  party’s  uncured  material  breach,  bankruptcy  or  insolvency,  in  the  event  of  force  majeure  or
regulatory requirement to make material alteration or modification to the contractual rights or obligations of this agreement which has the
effect of preventing the parties from achieving their business objectives, or by mutual agreement of both parties. Genexine has the right
to  terminate  the  agreement  if  we  fail  to  use  commercially  reasonable  efforts  to  obtain  regulatory  approvals  or  other  registrations
necessary for commercializing the licensed product in the agreed period due to our fault or if we cease to pursue clinical development or
product registration or to conduct licensed activities on a reasonable scale as agreed (“Development and Commercialization Termination
Events”).  Such  Development  and  Commercialization  Termination  Events  expressly  include  our  failure  to  reach  certain  development
milestones or commercially launch the licensed product in the agreed period. To the extent that we terminate as a result of a regulatory
requirement to make material alteration or modification to the contractual rights or obligations of this agreement or Genexine terminates
for our material breach, bankruptcy or insolvency, force majeure, or the Development and Commercialization Termination Events, we
cannot develop, manufacture, market, promote, sell, offer for sale, distribute or otherwise make available any competing product for a
certain period after such termination.

During the term of this agreement, if we develop or acquire any improvement, modification or alteration to the licensed product, we
will own such improvements, modifications or alterations and provide Genexine details thereof, whether patentable or not. Additionally,
we should grant to Genexine a fully paid up, royalty-free, exclusive license (with a right to sublicense) to use any such improvements,
modifications or alterations anywhere outside of China, Hong Kong, Macau and Taiwan.

In  May  2020,  we  and  Genexine  entered  into  an  amendment  to  this  agreement,  whereby  both  parties  desire  to  establish  a
collaboration on TJ107 GBM Study in Greater China. Under the terms of the expanded collaboration, we will be mainly responsible for
using  commercially  reasonable  efforts  to  conduct  the  Phase  2  GBM  clinical  trial  in  Greater  China,  and  Genexine  will  share  the
development strategies, data and costs for success of this clinical trial. As of December 31, 2022, the costs incurred for the development
of this new indication was RMB7.0 million (US$1.1 million) and thus RMB4.7 million (US$0.7 million) was recorded in our audited
consolidated financial statements for the year ended December 31, 2022.

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Licensing Agreement with Ferring (Olamkicept)

In  November  2016,  we  entered  into  a  license  and  sublicense  agreement  with  Ferring  International  Center  SA  (“Ferring”)  with
respect  to  (i)  FE301,  an  interleukin-6  inhibitor,  and  (ii)  all  pharmaceutical  formulations  in  finished  packaged  form  containing  FE301
covered  by  certain  patents  or  patent  applications.  Under  this  agreement,  Ferring  granted  to  us  an  exclusive,  sublicensable  license
(excluding any non-exclusive license that Ferring granted to Conaris Research Institute AG under a licensing agreement entered into in
November  2008)  under  certain  Ferring  intellectual  property  to  research,  develop,  make,  have  made,  import,  use,  sell  and  offer  to  sell
FE301 (and the licensed products containing FE301) in China, Hong Kong, Macau, Taiwan and South Korea. We also have an option to
receive an exclusive, sublicensable license under certain Ferring intellectual property to research, develop, make, have made, import, use,
sell and offer to sell FE301 (and the licensed products containing FE301) in the countries in North America, the European Union and
Japan that are mutually agreed upon by the parties.

We are required to use commercially reasonable efforts to obtain approval of FE301 and to promote, market, distribute and sell it in

China, Hong Kong, Macau, Taiwan, and South Korea. Such activities are to be at our own cost and expense.

Under this agreement, we paid to Ferring an upfront license fee of US$2.0 million. We also agreed to make milestone payments to
Ferring, in the aggregate amount of US$14.5 million, conditioned on the achievement of certain development milestones in the licensed
territory, including completion of Phase 1b and Phase 2a clinical studies and the submission and approval of the new drug application.
Further,  if  we  exercise  our  option  to  receive  a  license  in  any  of  the  mutually  agreed  upon  countries  in  North  America,  the  European
Union  and  Japan,  we  are  required  to  pay  to  Ferring  an  additional  US$3.0  million  as  an  upfront  license  fee  (upon  the  exercise  of  the
option),  and  milestone  fees  up  to  the  aggregate  amount  of  US$30.0  million,  conditioned  upon  the  licensed  product  achieving  certain
development milestones in certain countries in the option territory.

In addition, we agreed to pay Ferring tiered royalties ranging from the mid-single-digit to high-single-digit percentages of annual net
sales for countries in China, Hong Kong, Macau, Taiwan, and South Korea, and from the high-single-digits to 10% of annual net sales
for  the  mutually  agreed  upon  countries  in  North  America,  the  European  Union  and  Japan.  To  date,  we  have  not  paid  any  royalties  to
Ferring.

The royalty term commences with the first commercial sale of the licensed product in the relevant country and ends upon the later of
(i) 15 years from the date of launch, and (ii) the expiry of the last to expire patent of Ferring that includes a valid claim covering the
development,  making,  using  or  selling  of  the  licensed  compound  or  licensed  product  in  the  licensed  territory  and/or  option  territory.
Unless terminated earlier in accordance with the terms thereof, this agreement will remain in effect until the later of the expiry of the
royalty term, and the first date on which we are not conducting any necessary and outstanding clinical study with respect to the licensed
product or seeking to obtain any necessary and pending regulatory approval for the licensed product, if applicable. This agreement may
be terminated by either party for the other party’s uncured material breach, bankruptcy or insolvency. In addition, in the event that the
original  licensor  terminates  its  license  to  Ferring  governing  any  of  the  intellectual  property  sublicensed  to  us  under  this  agreement,
Ferring has the right to terminate this agreement with respect to such sublicenses in which case both parties will discuss in good faith
how  to  resolve  and  mitigate  to  mutual  satisfaction.  To  the  extent  that  Ferring  terminates  for  our  material  breach,  bankruptcy  or
insolvency, among other things, all licenses and rights granted by Ferring to us will automatically terminate and the licenses and rights
we granted to Ferring will survive and automatically become irrevocable with the right to sublicense.

During the term of the licensing agreement, if we develop or acquire any improvement, modification, enhancement or addition to the
licensed product, we will own and retain all rights, title and interest therein, and grant to Ferring a non-exclusive, fully paid, royalty-free,
worldwide license thereto.

In September 2020, we entered into a sublicense agreement with I-Mab Hangzhou, under which we sublicensed to I-Mab Hangzhou
an  exclusive,  sublicensable  license  to  develop,  manufacture  and  commercialize  olamkicept  in  mainland  China,  Hong  Kong,  Macau,
Taiwan and South Korea. In December 2021, we entered into a supplementary sublicensing agreement with I-Mab Hangzhou, pursuant
to which I-Mab Hangzhou, as a sub-licensee of olamkicept (TJ301) in Greater China and Korea, agreed to pay US$3.0 million to us for
the  completion  of  olamkicept  (TJ301)  Phase  2a  study  report.  After  receiving  the  milestone  payment  of  RMB19.1  million  (US$3.0
million) from I-Mab Hangzhou, we made the payment of US$3.0 million to Ferring, as of December 31, 2022.

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In  May  2022,  we  entered  into  an  amended  and  restated  license  and  sublicense  agreement  and  a  cell  line  and  manufacturing
collaboration  agreement  (the  “Cell  Line  Collaboration  Agreement”)  with  Ferring,  under  which  we  granted  to  Ferring  an  exclusive,
perpetual and transferrable sublicense, with the right to grant further sublicenses to sublicensees, under all of the intellectual properties
licensed to us by our business partner, to research, develop, make, import, use and sell olamkicept as expressed by or produced by cell
lines created by our business partner and its affiliates in any human indications in the territories other than Greater China and Korea. We
also granted to Ferring an exclusive, perpetual and royalty-free license, with right of sublicense to sublicensees, under the intellectual
property  owned  or  controlled  by  our  company  which  relates  to  cell  lines  created  by  our  business  partner  and  its  affiliates,  for  the
research, development, making, using or selling of olamkicept, including prespecified patents and know-how and improvements thereto.
As of December 31, 2022, Ferring paid to us the milestone payment as specified in the Cell Line Collaboration Agreement. Ferring also
agreed  to  make  milestone  payments  to  us,  conditioned  on  the  achievement  of  certain  development  milestones  in  Ferring’s  licensed
territory.

License and Collaboration Agreement with MacroGenics (enoblituzumab)

In July 2019, we entered into a license and collaboration agreement with MacroGenics, Inc. for development and commercialization
of an Fc-optimized antibody known as enoblituzumab that targets B7-H3, including in combination with other agents, such as the anti-
PD-1 antibody known as retifanlimab (formerly MGA012), in the People’s Republic of China, Hong Kong, Macau and Taiwan.

Under this agreement, MacroGenics granted to us an exclusive, sublicensable, royalty-bearing license to MacroGenics’ patents and
know-how to develop and commercialize the enoblituzumab product, and a combination regimen of enoblituzumab and retifanlimab, in
Greater China during the term of the agreement.

In exchange for these rights, in addition to certain financial consideration, we grant to MacroGenics a royalty-free, sublicensable,
license outside of Greater China, to our patents and know-how that are related to the enoblituzumab product or useful or necessary for
MacroGenics to develop or commercialize the enoblituzumab product or a product containing retifanlimab, and combinations thereof.
The license is (i) non-exclusive with respect to the enoblituzumab product, and (ii) exclusive with regard to retifanlimab.

Unless prohibited by applicable laws and regulations, which include all international, national, federal, state, regional, provincial,
municipal and local government laws, rules, and regulations that apply to either us or MacroGenics or to the conduct of the collaboration
under this agreement (including Good Manufacturing Practice, Good Clinical Practices, General Biological Products Standards, and the
laws, rules and regulations of the International Conference on Harmonisation, the United States, China, Hong Kong, Macau, and Taiwan,
each as may be then in effect, as applicable and amended from time to time), we will co-own all clinical data generated pursuant to this
agreement in any clinical trial conducted solely in Greater China, and, to the extent that such joint ownership is not legally permitted,
MacroGenics will be the sole and exclusive owner of such clinical data. MacroGenics will solely and exclusively own all other clinical
data generated pursuant to this agreement. We are not aware of any applicable laws or regulations that would prohibit us from jointly
owning such clinical data and, to our knowledge, we currently qualify for such joint ownership with MacroGenics under this agreement.

Pursuant  to  this  agreement,  we  paid  MacroGenics  an  upfront  payment  of  US$15.0  million.  We  also  agreed  to  pay  MacroGenics
development and regulatory milestone fees of up to US$135.0 million and tiered double-digit royalties (ranging from mid-teens to twenty
percent) based on annual net sales in the territories. As of the date of this annual report, we have made a milestone payment of US$4.5
million to MacroGenics. In July 2022, due to an unexpected high incidence of fatal bleeding, MacroGenics terminated a phase 2 study of
enoblituzumab as a combination therapy with PD-1 antibody or PD-1/LAG3 bispecific antibody in patients with head and neck cancers.
We exercised our right to terminate the license and collaboration agreement with MacroGenics by serving a termination notice on August
29, 2022 and the termination came into effect in February 2023.

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Other In-Licensing Arrangements

In November 2018, we entered into a license and collaboration agreement with MorphoSys for MorphoSys’s proprietary antibody
(MOR210/TJ210)  directed  against  C5aR  (the  “C5aR  Agreement”).  Under  this  agreement,  MorphoSys  granted  to  us  an  exclusive,
royalty-bearing  license  to  explore,  develop  and  commercialize  MOR210/TJ210  in  Greater  China  and  South  Korea  and  allowed  us  to
share certain economics upon certain clinical milestones in the U.S. As of the date of this annual report, we have received the economics
sharing of US$0.9 million from Morphosys. I-Mab will perform and fund all global development activities related to the development of
MOR210/TJ210  in  Greater  China  and  South  Korea,  including  all  relevant  clinical  trials  (including  in  the  U.S.  and  China)  and  all
development activities required for IND filing in the U.S. as well as CMC development of manufacturing processes. As of the date of
this annual report, we have made an upfront payment of US$3.5 million and milestone payment of US$2.5 million to MorphoSys. No
other  milestone  payments  or  royalties  are  due  under  this  agreement  in  the  reporting  period.  MorphoSys  retains  rights  in  respect  of
development and commercialization of MOR210/TJ210 in the rest of the world. Additionally, MorphoSys maintains the right to conduct
activities in Greater China and South Korea that enable MorphoSys to exploit MOR210/TJ210 outside of those countries. Pursuant to the
C5aR Agreement, we are required to use commercially reasonable efforts as we develop and commercialize MOR210/TJ210 in Greater
China and South Korea. This agreement may be terminated by either party for the other party’s uncured material breach, bankruptcy or
insolvency. In addition, we have the right to terminate the agreement for convenience at any time after a certain specified time period
upon a notice period that varies based upon the stage of development and for safety reasons. MorphoSys has the right to terminate the
agreement if we challenge its patents. To the extent that we terminate for convenience or MorphoSys terminates for our material breach,
bankruptcy, insolvency or patent challenge, among other things, all licenses and rights granted by MorphoSys to us will automatically
terminate  and  the  licenses  and  rights  granted  by  us  to  MorphoSys  will  survive.  In  the  event  of  such  termination,  in  addition  to  other
obligations, we must grant to MorphoSys an exclusive, royalty-bearing, sublicensable license under certain of our intellectual property
relating to the licensed product to exploit MOR210/TJ210 in Greater China and South Korea.

B. Out-Licensing Arrangements

License and Collaboration Agreement with AbbVie

In  September  2020,  we,  through  our  subsidiaries  I-Mab  Biopharma  Co.,  Ltd.  and  I-Mab  Biopharma  US  Limited,  entered  into  a
license and collaboration agreement with AbbVie Ireland Unlimited Company (“AbbVie”) for the development and commercialization of
certain compounds and products that target CD47, including lemzoparlimab (which targets a unique epitope of CD47).

Under  this  agreement,  we  grant  AbbVie  an  exclusive,  royalty-bearing,  sublicensable  license  to  develop,  manufacture  and
commercialize  the  licensed  compounds  and  products  (but  excluding  products  that  are  directed  to  both  a  CD47  epitope  that  is  not  the
same  or  substantially  similar  to  the  epitope  targeted  by  lemzoparlimab  and  a  non-CD47  target)  anywhere  in  the  world  outside  of
mainland China, Hong Kong and Macau, and to conduct development and manufacturing activities in mainland China, Hong Kong and
Macau to further AbbVie’s commercialization of the licensed products outside of mainland China, Hong Kong and Macau, except that,
with respect to products containing either our preclinical CD47-PDL1 compound or our preclinical CD47-GMCSF compound, AbbVie
will  not  develop,  manufacture  or  commercialize  such  products  until  the  parties  come  to  financial  terms  on  such  products  following
AbbVie’s exercise of its rights of first negotiation. We have granted AbbVie a license and cannot commercialize products containing our
preclinical CD47-PDL1 compound or our preclinical CD47-GMCSF compound outside of mainland China, Hong Kong and Macau even
if AbbVie does not exercise its right of first negotiation or we are unable to come to financial terms on such products. We also grant
AbbVie  a  co-exclusive,  royalty-bearing,  sublicensable  license  to  develop,  manufacture  and  commercialize  licensed  compounds  and
products that are directed to both a CD47 epitope that is not the same or substantially similar to the epitope targeted by lemzoparlimab
and a non-CD47 target (excluding such compounds and products that have been developed by us) anywhere in the world.

Under  this  agreement,  AbbVie  grants  us  an  exclusive,  royalty-free,  sublicensable  license  under  its  technology  and  any  joint
technology developed under this agreement to clinically develop and commercialize in mainland China, Hong Kong and Macau certain
of the licensed compounds and products that (1) only target CD47, including lemzoparlimab, and (2) to the extent AbbVie exercises its
rights of first negotiation for such licensed compounds and products, consist of our preclinical CD47-PDLl compound or our preclinical
CD47-GMCSF compound.

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We are responsible for conducting certain initial development activities, at our cost and expense, following which AbbVie assumes
the responsibility and costs for all development, manufacture and commercialization activities of the licensed compounds and products
outside of mainland China, Hong Kong and Macau. Under this agreement, AbbVie is required to use commercially reasonable efforts to
develop, seek and obtain approval of, and commercialize at least one licensed product in at least two indications in the United States and
at least three of the United Kingdom, France, Germany, Italy and Spain.

We are responsible for the development and commercialization of the licensed compounds and products in mainland China, Hong
Kong and Macau. We are required to use commercially reasonable efforts to develop, seek and obtain approval of, and commercialize at
least one licensed product in at least two indications in mainland China.

During  the  term  of  the  AbbVie  Collaboration  Agreement,  we  are  not  permitted  to  develop,  manufacture  or  commercialize  a
compound  or  product  that  is  directed  (1)  solely  to  CD47  or  (2)  to  an  epitope  that  is  the  same  or  substantially  similar  to  the  epitope
targeted by lemzoparlimab, and AbbVie is not permitted to market a monoclonal antibody that is solely directed to a CD47 epitope that is
the same or substantially similar to the epitope targeted by lemzoparlimab for an indication in any country where the licensed product has
received regulatory approval for such indication. Additionally, during the first five (5) years after the first commercial sale of a licensed
product outside of mainland China, Hong Kong and Macau, AbbVie will not market any monoclonal antibody solely directed to CD47
for  an  indication  in  any  country  where  the  licensed  product  has  received  regulatory  approval  for  such  indication  in  such  country.
AbbVie’s  exclusivity  restrictions  will  not  prevent  it  from  marketing  an  antibody  that  demonstrates  additive  or  synergistic  effects  in
combination with a licensed product, or an improvement on a licensed product based on improved efficacy or safety data.

Under this agreement, we and AbbVie formed a joint governance committee that consists of three representatives from each of us.
The joint governance committee will oversee and coordinate the development of the licensed compounds and products in both of our
territories, including the review and approval of each of our respective development plans, the review and approval of clinical trials and
commercialization in mainland China, Hong Kong and Macau, and discussing commercialization strategies in each of our territories. The
joint governance committee may create working groups as it deems appropriate.

Under  this  agreement,  AbbVie  has  paid  us  an  upfront  payment  of  US$180  million  and  milestone  payment  of  US$20  million.
Further,  based  on  the  achievement  of  certain  sales-related  milestones,  we  may  earn  additional  milestone  payments.  In  addition  to  the
upfront and milestone payments that we may earn, we may also earn tiered royalties consisting of low-to-mid teen percentages of global
net sales.

We will not owe any milestone payments for our development or commercialization in mainland China, Hong Kong and Macau, but
we  are  required  to  pay  AbbVie  tiered  royalties  in  the  mid-to-high  single-digit  percentages  of  net  sales  of  licensed  products  in  those
countries.

Under  this  agreement,  we  grant  AbbVie  several  rights  of  first  negotiation  with  respect  to  our  products,  including  a  right  of  first
negotiation to exercise its right to products containing either our preclinical CD47-PDL1 compound or our preclinical CD47-GMCSF
compound  outside  of  mainland  China,  Hong  Kong  and  Macau.  This  right  of  first  negotiation  is  exercisable  following  completion  of
preclinical activities sufficient to initiate IND-enabling, GLP-conforming animal toxicology studies, and if AbbVie exercises this right,
the  parties  shall  negotiate  an  amendment  to  allow  AbbVie  to  develop,  manufacture  and  commercialize  that  product  in  exchange  for
additional regulatory and sales milestones that could equal or exceed US$500 million plus royalty payments.

We also grant AbbVie other rights of first negotiation for rights to commercialize: (1) our preclinical CD47-PDL1 compound or our
preclinical  CD47-GMCSF  compound  in  mainland  China,  Hong  Kong  and  Macau;  (2)  our  multi-specific  or  bi-specific  licensed
compounds that contain a targeting moiety that is directed to both an epitope on CD47 that is not the same or substantially similar to the
epitope targeted by lemzoparlimab and a non-CD47 target, as well as any products containing such compounds anywhere in the world;
and (3) each licensed product that contains a licensed compound as its sole active ingredient that is directed solely to CD47 in mainland
China, Hong Kong and Macau.

AbbVie grants us a right of first negotiation for rights to: (1) commercialize its multi-specific or bi-specific compounds that contain
a  targeting  moiety  that  is  directed  to  both  an  epitope  on  CD47  that  is  not  the  same  or  substantially  similar  to  the  epitope  targeted  by
lemzoparlimab and a non-CD47 target, as well as any products containing such compounds in mainland China, Hong Kong and Macau;
and  (2)  develop  and  commercialize  licensed  compounds  as  part  of  combination  products  (other  than  products  that  contain  a  licensed
compound  directed  against  both  an  epitope  on  CD47  that  is  not  the  same  or  substantially  similar  to  the  epitope  targeted  by
lemzoparlimab and a non-CD47 target) in mainland China, Hong Kong and Macau.

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This agreement may be terminated by either party in the event of an uncured material breach. If the material breach and failure to
cure is by AbbVie with respect to some countries, but not others, we have the right to terminate this agreement solely with respect to the
countries to which the breach relates. If the material breach and failure to cure is by us with respect to our obligations in mainland China,
Hong Kong and Macau, AbbVie will have the right to reduce payments to us by a certain percentage.

AbbVie  has  certain  termination  rights  if  it  determines  not  to  continue  development  and  commercialization  based  on  documented
safety concerns. AbbVie may also terminate this agreement in part or in whole for convenience following prior written notice of a certain
period. AbbVie may also terminate this agreement immediately following certain breaches by us of anti-bribery and anti-corruption laws.
AbbVie also has termination rights related to the approval process under the Hart-Scott-Rodino Antitrust Improvements Act. If we stop
material clinical development and commercialization activities in mainland China, Hong Kong and Macau without justification, AbbVie
may reduce any royalties that would have been due to us by a certain percentage.

If  AbbVie  stops  material  clinical  development  and  commercialization  activities  without  justification,  we  may  terminate  this

agreement. We also have certain termination rights if AbbVie or its affiliates challenge our valid patents related to the licensed products.

In August 2022, we and AbbVie Global Enterprises Ltd., the assignee of AbbVie Ireland Unlimited Company (together with AbbVie
Ireland  Unlimited  Company,  “AbbVie”),  entered  into  an  amendment  to  this  agreement.  The  parties  are  collaborating  on  the  global
development of anti-CD47 antibody therapy under the agreement as amended. We will be eligible to receive, and AbbVie will pay, up to
US$1.295 billion in the development, regulatory and sales milestone payments, and the tiered royalties at rates from mid-to-high single-
digit  percentages  on  global  net  sales  outside  of  Greater  China  for  certain  new  anti-CD47  antibodies  currently  in  development,  or  the
original milestone payments and tiered royalties previously disclosed in our annual report in Form 20-F for the fiscal year 2021 for other
licensed products. We have the exclusive right to develop and commercialize all licensed products under the agreement (as amended) in
Greater  China.  AbbVie  discontinued  the  global  Phase  1b  study  of  lemzoparlimab  combination  therapy  with  AZA  and  venetoclax,  in
patients  with  MDS  and  AML,  and  a  Phase  1b  study  of  lemzoparlimab  in  patients  with  relapsed/refractory  multiple  myeloma.  These
discontinuations were not related to any specific or unexpected safety concerns. This change led to a lowered probability of achieving a
key milestone that was included in the consideration of revenue recognition in prior years. We recorded a reduction in the revenue of
approximately US$48.0 million (equivalent to RMB314.2 million) in the second half of 2022. For a more detailed discussion, please see
Note 17 “Licensing and Collaboration Arrangements” of our consolidated financial statements included elsewhere in this annual report.

Licensing Agreement with ABL Bio

In July 2018, we entered into a license and collaboration agreement with ABL Bio (the “ABL Bio License”), as amended from time
to time. Under the ABL Bio License, we granted to ABL Bio exclusive, worldwide (excluding Greater China), royalty-bearing rights to
develop  and  commercialize  a  bispecific  antibody  (the  “BsAb”)  using  certain  of  our  monoclonal  antibody  sequences.  ABL  Bio  has
developed expertise in the area of bispecific antibodies for all indications and has developed proprietary intellectual property around the
BsAb  technology,  and  the  license  allows  ABL  Bio  to  further  develop  and  commercialize  the  BsAb  based  on  monoclonal  antibodies
licensed from us under the ABL Bio License. ABL Bio granted to us an exclusive, royalty-free, sublicensable license under its interest in
the BsAb and related know-how (including improvements thereto) to exploit the licensed BsAb in Greater China.

Under  the  ABL  Bio  License,  we  and  ABL  Bio  each  are  responsible  for  using  commercially  reasonable  efforts  to  develop  the
licensed  products  through  the  completion  of  in  vivo  studies,  and  ABL  Bio  is  responsible  for  using  commercially  reasonable  efforts
thereafter. We agreed to split costs fifty-fifty (50:50) with ABL Bio through the completion of in vivo studies, with ABL Bio responsible
for all costs and activities following that time. ABL Bio is responsible for all development and commercialization activities in its own
territories, subject to our input through a joint committee comprised of an equal number of our and ABL Bio’s representatives (though
ABL Bio has final decision-making authority).

In consideration of the license, ABL Bio paid us an upfront fee of US$2.5 million and agrees to make milestone payments in the
aggregate amount of US$97.5 million conditioned upon achieving certain clinical development and sales milestones. Further, ABL Bio
agreed to pay us royalties at mid-single-digit percentages in respect of the total annual net sales of the licensed BsAb product.

In addition, ABL Bio granted to us an exclusive, royalty-free, sublicensable license to use its BsAb technology solely to exploit the

licensed BsAb product for all indications in Greater China.

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We also agreed that, during the term of the ABL Bio License, neither we nor ABL Bio would develop independently from the other

a bispecific antibody that uses the same pair of antibodies as the bispecific antibody molecules created under the ABL Bio License.

The  ABL  Bio  License  will  continue  to  be  in  effect  until  expiration  of  the  last  payment  obligation  thereunder,  unless  earlier
terminated according to its terms. The ABL Bio License may be terminated by either party for the other party’s uncured material breach
or in the event that the other party challenges its patents. In addition, after a certain specified time period, ABL Bio may terminate the
ABL Bio License upon a notice period that varies based upon the stage of development.

Upon  expiration  (but  not  termination)  of  the  ABL  Bio  License,  we  and  ABL  Bio  will  each  retain  our  respective  licenses  granted
under the ABL Bio License. If the ABL Bio License is terminated pursuant to ABL Bio’s right to terminate at will or due to ABL Bio’s
material breach, all rights and obligations (including all licenses granted) shall terminate and upon our request, we and ABL Bio will
negotiate  in  good  faith  regarding  our  takeover  of  the  exploitation  of  the  BsAb  product  outside  of  Greater  China  in  exchange  for
reasonable  compensation.  Such  negotiation  will  include,  among  other  things,  ABL  Bio’s  assignment  of  assets  related  to  the  licensed
BsAb product and the continuation of the licenses granted to us under the ABL Bio License.

Licensing Agreement with CSPC Entity

In December 2018, we entered into a product development agreement (the “CSPC Agreement”) with an entity controlled by CSPC
Pharmaceutical Group Limited (HKEX: 1093) (“CSPC entity”). Under the CSPC Agreement, we granted to CSPC entity exclusive, non-
transferable, non-irrevocable and sublicensable rights under our patent rights in China to develop and commercialize TJ103 for treating
type 2 diabetes mellitus and any other potential therapeutic applications. CSPC entity’s right to sublicense is conditioned on our prior
written  consent,  which  we  cannot  unreasonably  withhold,  other  than  sublicense  to  CSPC  entity’s  affiliates.  CSPC  entity  is  a
comprehensive  pharmaceutical  and  drug  manufacturing  company,  with  an  increasing  focus  on  its  research  and  development  of  new
products focusing the therapeutic area of oncology, among others.

Under  the  CSPC  Agreement,  CSPC  entity  is  responsible  for  using  commercially  reasonable  efforts  to  develop,  obtain  market
approval  and  commercialize  the  licensed  products,  while  we  are  responsible  for  using  commercially  reasonable  efforts  to  transfer  the
manufacturing technology of the licensed products to CSPC entity and assist or guide CSPC entity in the continued optimization of such
manufacturing technology thereafter. CSPC entity has final decision-making authority with respect to product development (though the
research  plan  should  be  jointly  developed  by  both  parties  and  any  changes  to  the  plan  should  be  discussed  and  approved  by  the  joint
development committee) and commercialization.

We also agreed that, during the term of the CSPC Agreement, we should not develop, either for ourselves or for third parties, any
other  hyFc  platform  technology-based  long-acting  recombinant  GLP-1  Fc  fusion  proteins  that  may  be  in  a  competitive  position  with
TJ103.

In consideration of the license, CSPC entity paid us an upfront fee of RMB15.0 million and milestone payment of RMB15.0 million.
Further,  CSPC  agreed  to  make  milestone  payments  in  an  aggregate  amount  of  RMB118.5  million  conditioned  upon  achieving  certain
clinical  development  and  regulatory  approval  milestones,  including  completion  of  Phase  2  and  Phase  3  clinical  studies  and  obtaining
NDA  approval  or  market  approval.  Further,  we  will  also  be  entitled  to  tiered  royalties  ranging  from  mid-single-digit  percentages  to
10 percent in respect of the total annual net sales of the products after their commercialization in China. The royalty term will terminate
at  the  later  of:  (i)  the  expiry  date  of  the  underlying  patents  of  the  licensed  products  with  application  numbers  201410851771.1  and
201580071643.8 (final grant of rights requested relating to GLP-1) in China, whichever is later; and (ii) the ten-year anniversary of the
initial  commercialization  of  the  product  developed  under  the  CSPC  Agreement.  We  expect  any  patents  that  may  issue  under  the
aforementioned patent application numbers 201410851771.1 and 201580071643.8 will expire between 2034 and 2035, before taking into
account any extension that may be obtained through patent term extensions or adjustments, or term reduction due to filing of terminal
disclaimers.

Unless terminated earlier in accordance with the terms thereof, the CSPC Agreement will remain in effect until the termination of
the  royalty  term.  This  agreement  may  be  terminated  by  either  party  for  the  other  party’s  uncured  material  breach,  bankruptcy  or
insolvency or force majeure. We have the right to terminate the agreement if CSPC entity fails to use commercially reasonable efforts to
obtain regulatory approvals for commercializing the licensed product in the period stipulated by its board of directors due to its own fault
or if CSPC entity ceases to pursue clinical development or product registration as determined by its board of directors. CSPC entity has
the right to terminate the agreement if we fail to resolve certain intellectual property disputes relating to TJ103 within six months after
signing.

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During  the  term  of  the  CSPC  Agreement,  CSPC  entity  will  have  exclusive,  royalty-free  rights  in  China  to  any  work  product
generated by us, and be responsible for any patent application and maintenance costs of such work product. CSPC entity will have all
rights to any work product generated by itself under the CSPC Agreement.

Other Out-Licensing Arrangements

In  April  2017,  our  subsidiary  I-Mab  Shanghai  entered  into  a  technology  transfer  agreement  (the  “HDYM  License”)  with  Ningbo
Hou De Yi Min Information Technology Co., Ltd. (“HDYM”) and Hangzhou HealSun Biopharm Co., Ltd. (“HealSun”) with respect to
PD-L1 humanized monoclonal antibodies. HealSun is a portfolio company of Lepu Biotech (乐普生物). Under the HDYM License, I-
Mab  Shanghai  agreed  to  grant  to  HDYM  exclusive  (even  to  I-Mab  Shanghai  itself),  worldwide  and  sublicensable  rights  to  develop,
manufacture,  have  manufactured,  use,  sell,  have  sold,  import,  or  otherwise  exploit  certain  PD-L1  related  patents,  patent  applications,
know-hows, data and information of I-Mab Shanghai, relevant cell lines as well as any PD-L1 monoclonal antibody arising from such
cell lines for the treatment of diseases. Further, I-Mab Shanghai and its cooperative party HealSun agreed to provide subsequent research
and  development  services  on  such  intellectual  property  to  HDYM,  including  the  selection  and  examination  of  innovative  PD-L1
humanized monoclonal antibodies, cultivation and selection of stable cell lines, establishment of cell bank, research and development of
manufacturing processes and preparation of samples, toxicological and pharmacological testing, pre-clinical pharmaceutical experiment
report  drafting,  and  application  for  and  registration  of  clinical  trials.  If  any  party  breaches  the  agreement  and  fails  to  cure,  the  non-
breaching  parties  may  terminate  this  agreement.  In  addition,  in  the  event  that  the  development  of  the  licensed  product  encounters
insurmountable  technical  difficulties,  this  agreement  may  be  terminated  by  mutual  agreement  of  all  parties.  To  the  extent  that  the
agreement  is  terminated  for  HDYM’s  breach,  all  licenses  and  rights  granted  by  us  to  HDYM  will  automatically  terminate  and  be  re-
assigned to us. To the extent that the agreement is terminated due to material difficulty, HDYM will have all rights to dispose of any
development data and technology held by HealSun and us under this agreement and neither HealSun or us may use such development
data and technology without HDYM’s consent.

In March 2020, we entered into a strategic partnership with Kalbe Genexine Biologics (“KG”), a joint venture of Kalbe Farma Tbk
(“Kalbe”) and Genexine. Under the terms of the agreement, KG will receive a right of first negotiation for an exclusive license for the
commercialization  of  two  I-Mab-discovered  product  candidates:  uliledlimab,  a  differentiated  anti-CD73  antibody  in  Phase  1
development for advanced solid tumors, and an I-Mab product candidate to be agreed upon by both parties. With the agreement, KG will
have a right of first negotiation for exclusive rights to commercialize these two product candidates in the ASEAN (Brunei Darussalam,
Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand and Vietnam) and MENA (Algeria, Bahrain, Djibouti,
Egypt,  Israel,  Jordan,  Kuwait,  Lebanon,  Malta,  Morocco,  Oman,  Qatar,  Saudi  Arabia,  Tunisia,  United  Arab  Emirates,  and  Palestine)
regions, as well as Sri Lanka. If and when we and KG enter into the definitive licensing agreement for uliledlimab, we will be eligible to
receive from KG an aggregate amount of up to approximately US$340 million, including an upfront payment and subsequent payments
conditional  upon  achieving  certain  development  and  commercial  milestones.  KG  will  pay  us  tiered  royalties  in  the  low  to  mid-teen
percentages on net sales from the ASEAN and MENA regions, as well as Sri Lanka.

C. Collaboration Arrangements

In  July  2018,  we  entered  into  a  collaboration  agreement  with  ABL  Bio,  further  amended  in  November  2018,  May  2019,
December  2019,  June  2020,  September  2021,  respectively,  whereby  both  parties  agreed  to  collaborate  to  develop  two  bispecific
antibodies by using ABL Bio’s proprietary BsAb technology and commercialize them in their respective territories, which, collectively,
include Greater China and South Korea, and other territories throughout the rest of the world if both parties agree to do so in such other
territories  during  the  performance  of  the  agreement.  This  agreement  may  be  terminated  by  either  party  for  the  other  party’s  uncured
material breach or in the event that the other party challenges its patents. Also, if a party encounters insurmountable technical difficulties
and risks, which cannot be resolved by such party within a certain period thereafter despite all reasonable efforts, such party will have the
right to terminate this agreement and will no longer have the right to develop the licensed product.

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In September 2018, we entered into a collaboration and platform technology license agreement with WuXi Biologics Ireland Limited
(“WuXi Biologics”), whereby both parties agreed to collaborate in the research and development of at least three bispecific antibodies for
our company to commercialize them worldwide. Such bispecific antibodies will be created using our proprietary monoclonal antibodies
and  WuXi  Biologics’  proprietary  WuXiBody  platform  technology  for  generating  bispecific  antibodies,  will  be  developed  and
manufactured through the exclusive service of WuXi Biologics. This agreement may be terminated by either party for the other party’s
uncured material breach, bankruptcy or insolvency. WuXi Biologics has the right to terminate this agreement if we challenge its patents.
We have the right to terminate this agreement if we decide to end the development and commercialization of the licensed product in the
licensed  territory  due  to  scientific,  technical,  or  commercial  reasons.  As  of  the  date  of  this  annual  report,  we  have  made  an  up-front
payment of US$1.0 million to Wuxi Biologics and no milestone payments or royalties are due under this agreement. In April 2019, we
extended our existing partnership with WuXi Biologics (Shanghai) Co., Ltd. (“WuXi Biologics Shanghai”). We entered into a long-term,
strategic collaboration agreement with WuXi Biologics Shanghai to facilitate the CMC development and GMP manufacturing of both
clinical and commercial supplies of certain of our monoclonal and bispecific antibodies and fusion products, leveraging WuXi Biologics’
and  its  affiliates’  expertise  in  this  area  and  supporting  our  pre-existing  collaboration  and  platform  technology  license  agreement  with
WuXi Biologics.

In November 2018, we entered into collaboration agreements with Tracon Pharmaceuticals, Inc. (“Tracon”), whereby we and Tracon
agreed  to  (i)  co-develop  our  proprietary  CD73  antibody,  TJD5  (the  “TJD5  Agreement”)  and  (ii)  collaborate  to  co-develop  up  to  five
bispecific antibodies (the “BsAbs Agreement”). Both agreements may be terminated by either party for the other party’s uncured material
breach,  bankruptcy  or  insolvency  or  for  other  reasons.  In  April  2020,  Tracon  issued  a  notice  of  disputes  with  respect  to  the  TJD5
Agreement and the BsAbs Agreement. In February 2021, we sent Tracon a notice to terminate the TJD5 Agreement, which would result
in  a  prespecified  termination  fee  of  US$9.0  million  owing  to  Tracon.  The  disputes  relating  to  the  TJD5  Agreement  and  the  BsAbs
Agreement were presented to a binding arbitration proceeding under the Rules of Arbitration of the International Chamber of Commerce
before an arbitration tribunal. On April 25, 2023, the arbitration award determined that the TJD5 Agreement has been terminated for a
pre-agreed termination fee of $9.0 million plus interest payable pursuant to the original agreement, and, therefore Tracon has no rights to
share any future economics with I-Mab. The arbitration award completely denied Tracon’s damages claim of over US$200 million for
any  breach  and  awarded  no  damages  to  Tracon.  The  tribunal  also  confirmed  the  termination  of  the  BsAb  Agreement.  Based  on  the
arbitration award, I-Mab will bear a portion of Tracon’s legal fees and costs, totaling approximately US$13.5 million.

In  March  2021,  we  entered  into  two  collaboration  agreements  with  Complix,  an  EU-based  biotech  company  (the  “Complix
Agreement”), and Affinity, a Shanghai-based biotech company (the “Affinity Agreement”), respectively, allowing us to access cutting-
edge  technology  platforms  to  create  next  generation  of  novel  and  highly  differentiated  drug  candidates,  including  Cell  Penetrating
Alphabodies  (“CPAB”)  for  otherwise  intractable  intracellular  drug  targets  and  masked  antibodies  for  targeted  tumor-site  activation.
Under  the  Complix  Agreement,  both  parties  will  collaborate  to  discover,  develop  and  commercialize  novel  therapeutics  for  mutually
agreed targets based on Complix’s proprietary technology. Under the Affinity Agreement, both parties will collaborate to develop lead
compounds  for  mutually  agreed  targets  based  on  Affinity’s  Tumor  MicroEnvironment  Activated  body  (“TMEAbody”)  platform
technology.

In July 2021, we entered into a collaboration agreement with Immorna, an mRNA biotech company, to discover and develop self-
replicating mRNA for in vivo synthesized therapeutic biologics. In the same month, we entered into a collaboration agreement with neoX
Biotech,  an  AI-enabled  R&D  biotech  company,  to  accelerate  the  R&D  process  of  novel  targets  and  modalities.  In  March  2023,  we
terminated the collaboration agreement with Immorna.

In October 2021, we entered into a strategic partnership with Sinopharm to strengthen our commercial capabilities and support our
commercialization transformation. We will authorize more than 300 of Sinopharm’s subsidiaries as distributors across China to support
distribution and retail allocation to terminal markets while we lead the overall commercial activities. The partnership will also include
alliance on key projects, to jointly support the commercialization and go-to-market process of our differentiated and novel products.

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In  November  2021,  we  entered  into  a  strategic  collaboration  agreement  with  Jumpcan,  a  leading  China  pharmaceutical  company
specialized  in  and  committed  to  pediatric  medicines,  for  the  development,  manufacturing  and  commercialization  of  our  highly
differentiated long-acting recombinant human growth hormone, eftansomatropin alfa (TJ101) in mainland China. Under the collaboration
agreement, we will continue to lead the ongoing registrational Phase 3 clinical trial of eftansomatropin alfa in pediatric growth hormone
deficiency  (PGHD).  The  two  companies  will  share  costs  of  manufacturing  tech  transfer,  process  optimization  and  new  formulation
development. We will be the marketing authorization holder (MAH) of the product and supply the product at agreed cost to Jumpcan.
Jumpcan will be responsible for commercializing the product and developing new indications in collaboration with us in mainland China.
We  will  provide  clinical,  manufacturing  and  academic  support.  According  to  the  terms  of  the  collaboration  agreement,  Jumpcan  will
make an upfront payment of RMB224 million to I-Mab and, upon achievement of development, registration and sales milestones, certain
milestone payments of up to RMB1.792 billion, making the non-royalty payments a total of up to RMB2.016 billion. In addition, we and
Jumpcan will share profits generated from commercialization of the product in mainland China on a 50/50 basis, pursuant to which we
will be entitled to receive tiered low double-digit royalties on net sales.

In  November  2021,  we  also  entered  into  a  strategic  collaboration  with  Roche  Diagnostics,  a  global  leader  in  in  vitro  diagnostics
industry,  to  co-develop  companion  diagnostics  (CDx)  solutions  for  our  innovative  pipeline,  at  the  Fourth  China  International  Import
Expo (CIIE) in Shanghai. Under this collaboration, we and Roche Diagnostics will jointly develop companion diagnostics solutions for
the innovative assets under development by us to accelerate the research and development process of innovative biologics with cutting-
edge diagnosis and treatment technologies.

Competition

Our industry is highly competitive and subject to rapid and significant change. While we believe that our management’s research,
development  and  commercialization  experience  provide  us  with  competitive  advantages,  we  face  competition  from  global  and  China-
based biopharmaceutical companies, including specialty pharmaceutical companies, generic drug companies, biologics drug companies,
academic institutions, government agencies and research institutions.

For  our  Global  Portfolio  drug  candidates,  we  expect  to  face  competition  from  a  broad  range  of  global  and  local  pharmaceutical
companies. Many of our competitors have significantly greater financial, technical and human resources than we have, and mergers and
acquisitions  in  the  biopharmaceutical  industry  may  result  in  even  more  resources  being  concentrated  among  a  smaller  number  of  our
competitors. Our commercial opportunity could be reduced or eliminated if our competitors develop or market products or other novel
therapies that are more effective, safer or less costly than our current or future drug candidates, or obtain regulatory approval for their
products more rapidly than we may obtain approval for our drug candidates.

Intellectual Property

Our  success  will  depend  significantly  on  our  ability  to  obtain  and  maintain  patent  and  other  proprietary  protection  for  our  drug
candidates and other commercially important products, technologies, inventions and know-how, as well as on our ability to defend and
enforce our patents including any patent that we have or may issue from our patent applications, preserve the confidentiality of our trade
secrets and operate without infringing the valid and enforceable patents and proprietary rights of other parties.

As of December 31, 2022, our owned patent portfolio consists of (i) 113 issued patents, including 11 issued in the U.S., 16 issued in
the PRC, seven issued in Korea and 79 issued in other jurisdictions; and (ii) 185 pending patent applications, including 19 PCT patent
applications,  10  U.S.  patent  applications,  14  PRC  patent  applications  and  142  patent  applications  in  other  jurisdictions.  Our  owned
patents and patent applications primarily relate to the drug candidates in our Global Portfolio. Furthermore, as of December 31, 2022, we
in-licensed the Greater China and Korea rights relating to (i) 35 issued patents, including 14 issued in the PRC, three issued in Korea, 12
issued in Hong Kong, two issued in Macau and four issued in Taiwan; and (ii) 26 pending patent applications, including two PCT patent
applications,  12  PRC  patent  applications,  four  Hong  Kong  patent  applications,  six  Taiwan  patent  applications,  one  Korean  patent
applications  and  one  Macau  patent  application.  The  in-licensed  patents  and  patent  applications  primarily  relate  to  felzartamab,
eftansomatropin alfa, efineptakin alfa and TJ210.

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Felzartamab

Eftansomatropin alfa

Efineptakin alfa

Lemzoparlimab

Uliledlimab

TJ210

As of December 31, 2022, we exclusively licensed from MorphoSys 18 issued patents (including eight issued
in the PRC, seven issued in Hong Kong, one issued in Taiwan and two issued in Macau) and 13 pending patent
applications (including four PCT applications, two in the PRC, two in Hong Kong, and five in Taiwan) relating
to felzartamab. The licensed patents include composition of matter patents in China, Hong Kong, Taiwan and
Macau. The patents (including patent applications if issued) in this portfolio are expected to expire between
2025 and 2042, before taking into account any extension that may be obtained through patent term extension
or adjustment, or term reduction due to filing of terminal disclaimers.

As  of  December  31,  2022,  we  (i)  exclusively  licensed  from  Genexine  two  pending  PRC  patent  applications
and  two  PCT  applications  directly  relating  to  eftansomatropin  alfa  and  (ii)  non-exclusively  licensed  from
Genexine  3  issued  patents  in  the  PRC  relating  to  a  hyFc  platform  that  develops  eftansomatropin  alfa.  The
licensed patents include composition of matter patents in China. The patents (including patent applications if
issued)  in  this  portfolio  are  expected  to  expire  between  2028  and  2037,  before  taking  into  account  any
extension that may be obtained through patent term extension or adjustment, or term reduction due to filing of
terminal disclaimers.

As  of  December  31,  2022,  we  (i)  exclusively  licensed  from  Genexine  three  issued  patents  (including  three
issued in Taiwan) and eight pending patent applications (including seven in the PRC and one in Hong Kong)
directly relating to efineptakin alfa and (ii) non-exclusively license from Genexine five issued patents in the
PRC  and  four  issued  patents  in  Hong  Kong  relating  to  a  hyFc  platform  that  develops  efineptakin  alfa.  The
patents (including patent applications if issued) in this portfolio are expected to expire between 2028 and 2040,
before taking into account any extension that may be obtained through patent term extension or adjustment, or
term reduction due to filing of terminal disclaimers.

As of December 31, 2022, we owned eight PCT patent application, three of which has entered national phases
including in the PRC, the United States and additional jurisdictions. We expect that any patents that may issue
under these applications will expire between 2037 and 2042, before taking into account any extension that may
be  obtained  through  patent  term  extension  or  adjustment,  or  term  reduction  due  to  filing  of  terminal
disclaimers.

As  of  December  31,  2022,  we  owned  four  PCT  patent  applications  and  one  of  which  has  entered  national
phases  including  in  the  PRC,  the  United  States,  and  additional  jurisdictions.  We  expect  that  any  patent  that
may  issue  under  these  applications  will  expire  between  2038  and  2042,  before  taking  into  account  any
extension that may be obtained through patent term extension or adjustment, or term reduction due to filing of
terminal disclaimers.

As  of  December  31,  2022,  we  exclusively  licensed  from  MorphoSys  four  pending  patent  applications
(including  one  in  the  PRC,  one  in  Hong  Kong,  one  in  Taiwan  and  one  in  Korea)  relating  to  TJ210.  We  co-
owned one PCT application with MorphoSys relating to TJ210. We expect that any patent that may issue under
these applications will expire between 2040 and 2041, before taking into account any extension that may be
obtained through patent term extension or adjustment, or term reduction due to filing of terminal disclaimers.

Givastomig (TJ-CD4B) As  of  December  31,  2022,  we  co-owned  one  PCT  patent  application  with  ABL  Bio  Inc.,  which  has  entered
national  phases  including  in  the  PRC,  the  United  States,  and  additional  jurisdictions.  We  owned  one  PCT
application relating to TJ-CD4B. We expect that any patent that may issue under this application will expire
between 2040 and 2042, before taking into account any extension that may be obtained through patent term
extension or adjustment, or term reduction due to filing of terminal disclaimers.

TJ-L14B

As  of  December  31,  2022,  we  co-owned  one  PCT  patent  application  with  ABL  Bio  Inc.,  which  has  entered
national phases including in the PRC, the Europe, and additional jurisdictions. We expect that any patent that
may  issue  under  this  application  will  expire  2039,  before  taking  into  account  any  extension  that  may  be
obtained through patent term extension or adjustment, or term reduction due to filing of terminal disclaimers.

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The term of a patent depends upon the laws of the country in which it is issued. In most jurisdictions, a patent term is 20 years from
the earliest filing date of a non-provisional patent application. Under the PRC Patent Law, the term of patent protection starts from the
date of application. Patents relating to inventions are effective for twenty years, utility models are effective for ten years and designs are
effective for fifteen years from the date of application. There are patent term adjustments and patent term extensions available in the PRC
for issued patents relating to inventions.

In addition to patents, we rely upon unpatented trade secrets and know-how and continuing technological innovation to develop and
maintain our competitive position. However, trade secrets and know-how can be difficult to protect. We seek to protect our proprietary
information, in part, by executing confidentiality agreements with our partners, collaborators, scientific advisors, employees, consultants
and  other  third  parties,  and  invention  assignment  agreements  with  our  consultants  and  employees.  We  have  also  executed  agreements
requiring assignment of inventions with selected scientific advisors and collaborators. The confidentiality agreements we enter into are
designed to protect our proprietary information and the agreements or clauses requiring assignment of inventions to us are designed to
grant us ownership of technologies that are developed through our relationship with the respective counterparty. We cannot guarantee
that  we  have  entered  into  such  agreements  with  each  party  that  may  have  or  have  had  access  to  our  trade  secrets  or  proprietary
technology  and  processes  or  that  these  agreements  will  afford  us  adequate  protection  of  our  intellectual  property  and  proprietary
information  rights.  If  any  of  the  partners,  collaborators,  scientific  advisors,  employees  and  consultants  who  are  parties  to  these
agreements breaches or violates the terms of any of these agreements or otherwise discloses our proprietary information, we may not
have adequate remedies for any such breach or violation, and we could lose our trade secrets as a result.

Additionally, as of December 31, 2022, we had (i) 17 registered trademarks in Hong Kong, 98 registered trademarks in the PRC, six
registered  trademarks  in  the  United  States,  17  registered  trademarks  in  Macau,  16  registered  trademarks  in  Taiwan,  three  registered
trademarks  in  other  jurisdictions,  and  four  trademark  applications  in  the  PRC;  (ii)  10  domain  names  in  the  PRC,  including  www.i-
mabbiopharma.com, six domain names in Hong Kong and two domain names in the Cayman Islands; and (iii) 12 software copyrights
and three copyrights of works of art in the PRC.

For more information on these and other risks related to intellectual property, see “Risk Factors—Risks Related to Our Intellectual

Property.”

Environmental, Health and Safety (EHS) Matters

In  August  2021,  we  established  an  ESG  Committee.  The  committee  consists  of  Dr.  Andrew  Zhu,  Director,  President  and  Acting
Chief Executive Officer, and two independent directors, Mr. Chun Kwok Alan Au and Dr. Rong Shao. Mr. Chun Kwok Alan Au chairs
the committee. As the oversight body for our ESG practices, the committee is responsible for supervising our ESG strategies, policies,
long-term sustainability objectives and risks. In addition, we also set up an ESG working group to address daily ESG workflows. In May
2022, we published our 2021 ESG report to summarize highlights and progress of our recent ESG practices. In February 2023, we were
granted “A” rating by MSCI Environmental, Social and Governance (ESG), following MSCI ESG’s most recent annual review, and such
rating outperforms approximately 66% peers among global biotech companies.

With  the  current  state  of  business  operations,  we  have  no  significant  environmental  impact  due  to  no  large-scale  manufacturing
operations.  We  abide  by  local  laws  and  regulations  on  environmental  protection  and  only  discharge  a  small  amount  of  waste  gas  and
wastewater after proper treatment. A small amount of hazardous wastewater produced during the research and development process is
carefully collected and handed over to qualified third-party professionals for proper treatment before discharged to the sewage treatment
plant.  A  small  amount  of  harmless  waste  gas  is  emitted  at  a  high  altitude  after  filtration  by  activated  carbon.  Any  hazardous  waste
generated during the research and development process is carefully collected by laboratory technicians daily and placed in a temporary
storage  facility,  and  transported  to  qualified  professionals  once  a  month,  in  accordance  with  strict  local  environmental  guidelines.  We
also provided employee trainings, set up SOPs and contingency plans for of potential EHS accidents.

At present, energy and resources consumed in our daily operations are mainly municipal electricity and domestic water. We assigned
a dedicated team to regularly inspect and maintain the equipment, measure total consumption, and train employees on water and energy
saving measures.

Safety  and  health  are  the  foundation  of  our  operational  activities.  We  have  created  a  comprehensive  internal  safety  management
system  to  ensure  compliance,  strengthen  risk  assessment  and  management.  In  addition,  we  provide  employees  with  annual  physical
check-ups  to  ensure  the  health  of  the  employees.  We  offered  SOPs  to  ensure  relevant  employees  are  aware  of  any  potential  hazards,
including providing emergency training, treatment facilities, and Personal Protection Equipment (PPE) to all employees.

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Enterprise Social Responsibility

As  an  integral  part  of  our  business  and  as  a  core  value,  we  strive  to  make  a  positive  impact  around  the  world  through  the
transformational  medicines  that  we  research,  develop,  manufacture  and  deliver.  We  are  committed  to  reflecting  ethical,  social  and
environmental  responsibilities  in  our  business  decisions,  ensuring  that  our  products  improve  people’s  lives  and  maintaining  the
sustainability of our business.

In  August  2021,  we  established  an  Environmental,  Social  and  Governance  (“ESG”)  committee  to  supervise  the  ESG  strategies,
policies, long-term sustainability objectives and risks of the company, and we were granted a “BBB” rating, the highest newly initiated
rating among China-based biotech companies, by the MSCI ESG assessment. In February 2023, I-Mab was granted “A” rating by MSCI
ESG,  following  its  most  recent  annual  review.  Our  commitment  to  ESG  can  be  summarized  into  three  “P”s:  patients,  philanthropy,
people.

Patients. Since our inception, we have been focusing on delivering immuno-oncology biologics with best-in-class and first-in-class
potential, with the mission to bring transformative medicines to patients through innovation. We have built an innovative and advanced
pipeline of over 10 highly differentiated, novel biologics with potential to address the significant unmet medical needs in cancer.

In 2020, there were 19.29 million new cancer cases worldwide, of which 4.57 million were newly diagnosed in China. This figure
accounts for 23.7% of the world’s cancer burden and far exceeds the number of new cancer cases of any other country in the world. In
fact, one out of every three patients who die from cancer in the world is from China. We are committed to addressing this significant
global disease burden and answering unmet needs of patients through our innovation.

In  response  to  the  COVID-19  resurgence  in  2022,  we  set  up  an  emergency  response  plan  by  coordinating  the  local  warehouses,
logistics vendors and CROs, as well as designed direct-to-patient plan, to make sure that our medicines be delivered to patients on time
amid lockdowns.

Philanthropy.  At  the  peak  of  the  COVID-19  outbreak,  we  donated  personal  protective  equipment  and  funds  worth  a  total  of
RMB800 thousand to support medical personnel and hospitals in Wuhan. We also donated US$50 thousand to BayHelix, a non-profit
organization focused on global life sciences and healthcare community, for the purpose of supporting relief of COVID-19 in the United
States.

In July 2021, we donated RMB1 million to Henan Charity General Federation for the rescue and reconstruction of flood-hit regions

in Henan Province in China. We are committed to philanthropic giving which can help build stronger communities.

People. People is the most valuable asset of I-Mab, and we are committed to creating a healthy, engaging, diversified and inclusive
environment for all staffs. We are at the forefront of promoting diversity and inclusiveness in the workplace. Women account for over
two-thirds  of  our  employees,  59%  of  them  hold  a  master’s  degree  or  above.  In  2020,  we  launched  the  Women’s  Leadership  Council
(“WLC”) globally to support our future female leaders to accelerate their career and personal development. In 2021 and 2022, I-Mab was
selected into the Asia Pacific Diversity, Equity and Inclusivity Best Practice Guide for two consecutive years.

We  value  talents  and  respect  knowledge.  To  support  employees’  personal  and  career  development,  we  have  built  up  a  systematic

talent development system, including an online learning center, advanced leadership program and other tailor-made training courses.

In 2022, in response to the urgent situations caused by COVID-19, we immediately set up an emergency task force to deliver food
supplies,  including  daily  necessities  and  anti-pandemic  gift  packs,  to  employees  in  areas  experiencing  prolonged  home  quarantine  to
support  employees  and  their  families  affected  by  the  pandemic  in  Shanghai.  We  also  organized  a  series  of  virtual  town  halls,  virtual
birthday parties, mental wellbeing lectures, to connect employees and relieve their stress during the lockdown.

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International Recognition and Awards

The remarkable achievements made by us are well recognized by the international community of pharma industry. We were among
the top companies by the leading global financial publication Institutional Investor in “Honored Companies” “Best CEO,” “Best CFO,”
“Best IR Professional,” “Best IR Program,” and “Best ESG” categories, based on its 2022 All-Asia Executive Team survey. It was the
second  consecutive  year  that  I-Mab  has  been  named  as  the  “Honored  Company”  within  the  healthcare  and  pharmaceuticals  sector.  In
September  2022,  I-Mab  was  ranked  among  the  Top  100  Chinese  Pharmaceutical  Innovation  Companies  released  by  Healthcare
Executive  magazine,  a  top-tier  Chinese  pharmaceutical  industry  media,  for  the  third  consecutive  year.  In  November  2022,  we  were
honored by the government of Pudong District of Shanghai for Outstanding Contribution to Economy. In recognition of our efforts and
achievements in driving diversity and inclusion, I-Mab was recently selected into the Diversity, Equity and Inclusion Best Practice Guide
2022 for the second year in a row, along with many leading companies across the industries. These awards reflect the impact we have
made on the innovation development of the healthcare industry as well as the leadership we have demonstrated throughout the year.

Regulation

We are subject to a variety of PRC laws, rules and regulations affecting many aspects of our business. This section summarizes the

principal PRC laws, rules and regulations that we believe are relevant to our business and operations.

PRC Regulation

We are subject to a variety of PRC laws, rules and regulations affecting many aspects of our business. This section summarizes the

principal PRC laws, rules and regulations that we believe are relevant to our business and operations.

Regulations on Company Establishment and Foreign Investment

Company Law

The establishment, operation and management of companies in China is governed by the PRC Company Law, which was passed by
the Standing Committee of the National People’s Congress (the “NPC”), on December 29, 1993 and came into effect on July 1, 1994 and
was latest revised or amended on October 26, 2018, respectively. In light of the PRC Company Law, companies established in the PRC
are either in the form of a limited liability company or a joint stock company. The PRC Company Law applies to both PRC domestic
companies and foreign-invested companies, unless otherwise provided in the relevant foreign investment laws and regulations.

Furthermore, the Company Law of the PRC (Revised Draft) and the Company Law of the PRC (Revised Draft for Second Review)
(collectively,  the  “Draft  Company  Law”)  were  released  for  public  comments  on  December  24,  2021  and  December  30,  2022,
respectively. The major revisions made by the Draft Company Law included improvement of the system for the establishment and exit of
companies,  optimization  of  organizational  structures  of  companies,  improvement  of  capital  system  of  companies,  strengthening  the
responsibilities of the controlling shareholder and management personnel, and enhancing the social responsibilities of companies. As of
the date of this annual report, the Draft Company Law has not been formally enacted.

Foreign Investment Law

On March 15, 2019, the NPC approved the PRC Foreign Investment Law, which became effective on January 1, 2020 and replaced
the three old rules on foreign investment in China, namely, the PRC Equity Joint Venture Law, the PRC Cooperation Joint Venture Law
and  the  Wholly  Foreign-Owned  Enterprise  Law,  together  with  their  implementation  rules  and  ancillary  regulations.  The  Foreign
Investment  Law  establishes  the  basic  framework  for  the  access  to,  and  the  promotion,  protection  and  administration  of  foreign
investments in view of investment protection and fair competition. According to the Foreign Investment Law, “foreign investment” refer
to  investment  activities  directly  or  indirectly  conducted  by  one  or  more  natural  persons,  business  entities,  or  other  organizations  of  a
foreign country (collectively referred to as “foreign investor”) within China, and “investment activities” include the following activities:
(i) a foreign investor, individually or together with other investors, establishes a foreign-invested enterprise within China; (ii) a foreign
investor acquires stock shares, equity shares, shares in assets, or other similar rights and interests of an enterprise within China; (iii) a
foreign investor, individually or together with other investors, invests in a new construction project within China; and (iv) investments in
other means as provided by the laws, administrative regulations or the State Council.

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Regulations Relating to Foreign Investment

On December 26, 2019, the State Council promulgated the Implementation Rules to the Foreign Investment Law, which became effective
on January 1, 2020. The implementation rules further clarified that the state encourages and promotes foreign investment, protects the lawful
rights and interests of foreign investors, regulates foreign investment administration, continues to optimize foreign investment environment, and
advances a higher-level opening.

Furthermore, PRC-based investments by foreign investors have historically been regulated by the Catalogue for the Guidance of Foreign
Investment Industries (2017 Revision) issued on June 28, 2017 and effective from July 28, 2017, the Special Management Measures (Negative
List) for the Access of Foreign Investment (2018) issued on June 28, 2018 and effective from July 28, 2018, the Special Management Measures
(Negative List) for the Access of Foreign Investment (2019) issued on June 30, 2019 and effective from July 30, 2019, and the Catalogue of
Industries  for  Encouraging  Foreign  Investment  (2019  Version)  issued  on  June  30,  2019  and  effective  from  July  30,  2019,  the  Special
Management Measures (Negative List) for the Access of Foreign Investment (2020) issued on June 23, 2020 and effective from July 23, 2020,
and the Catalogue of Industries for Encouraging Foreign Investment (2020 Version) issued on December 27, 2020 and effective from January
27,  2021.  According  to  the  aforesaid  catalogue  and  management  measures,  foreign-invested  industries  fall  into  four  categories,  namely,
“encouraged”  “permitted”  “restricted”  and  “prohibited”  and  certain  ownership  requirements,  requirements  for  senior  executives  and  other
special management measures should apply to foreign investors with regard to the access of foreign investments in certain categories. Currently,
the Catalogue for the Guidance of Foreign Investment Industries (2017 Revision), the Special Management Measures (Negative List) for the
Access  of  Foreign  Investment  (2018),  the  Special  Management  Measures  (Negative  List)  for  the  Access  of  Foreign  Investment  (2019),  the
Catalogue of Industries for Encouraging Foreign Investment (2019 Version), the Special Management Measures (Negative List) for the Access
of Foreign Investment (2020) and the Catalogue of Industries for Encouraging Foreign Investment (2020 Version) have all been replaced. The
currently  effective  industry  entry  clearance  requirements  governing  investment  activities  in  the  PRC  by  foreign  investors  are  set  out  in  two
categories,  namely  the  Special  Management  Measures  (Negative  List)  for  the  Access  of  Foreign  Investment  (2021),  and  the  Catalogue  of
Industries for Encouraging Foreign Investment (2022 Version), which were promulgated by the National Development and Reform Commission
(the “NDRC”), and the MOFCOM, and took effect on January 1, 2022 and on January 1, 2023, respectively. The Catalogue of Industries for
Encouraging Foreign Investment (2022 Version) and the Special Management Measures (Negative List) for the Access of Foreign Investment
(2021) further reduce restrictions on the foreign investment and expand the scope of industries in which foreign investments are encouraged.
Industries not listed in these two catalogues are generally deemed “permitted” for foreign investment unless specifically restricted by other PRC
laws.

On December 30, 2019, the MOFCOM and SAMR jointly promulgated Measures for Information Reporting on Foreign Investment, which
became  effective  on  January  1,  2020.  Pursuant  to  the  Measures  for  Information  Reporting  on  Foreign  Investment,  where  a  foreign  investor
carries  out  investment  activities  in  China  directly  or  indirectly,  the  foreign  investor  or  the  foreign-invested  enterprise  should  submit  the
investment information to the competent commerce department.

M&A Rules

According to the Provisions on the Merger or Acquisition of Domestic Enterprises by Foreign Investors jointly issued by the MOFCOM,
the State Assets Supervision and Administration Commission of the State Council, the State Administration of Taxation (the “SAT”), the State
Administration for Industry and Commerce (now known as the State Administration for Market Regulation), the China Securities Regulatory
Commission and the State Administration of Foreign Exchange (the “SAFE”), on August 8, 2006 and amended by the MOFCOM on June 22,
2009, among other things, (i) the purchase of an equity interest or subscription to the increase in the registered capital of non-foreign-invested
enterprises,  (ii)  the  establishment  of  foreign-invested  enterprises  to  purchase  and  operate  the  assets  of  non-foreign-invested  enterprises,  or
(iii) the purchase of the assets of non-foreign-invested enterprises and the use of such assets to establish foreign-invested enterprises to operate
such  assets,  in  each  case,  by  foreign  investors  is  subject  to  the  Provisions  on  the  Merger  or  Acquisition  of  Domestic  Enterprises  by  Foreign
Investors.  Particularly,  application  should  be  made  for  examination  and  approval  of  the  acquisition  of  any  company  in  China  affiliating  to  a
domestic company, enterprise or natural person, which is made in the name of an oversea company established or controlled by such domestic
company, enterprise or natural person.

PRC Drug Regulation

The Drug Administration Law of the PRC promulgated by the Standing Committee of the NPC on September 20, 1984 and effective from
July 1, 1985 and amended on February 28, 2001, December 28, 2013, April 24, 2015 and August 26, 2019, respectively, and the Implementing
Measures of the Drug Administration Law promulgated by the State Council on August 4, 2002 and effective from September 15, 2002 and
amended  on  February  6,  2016  and  March  2,  2019,  respectively,  have  jointly  established  the  legal  framework  for  the  administration  of
pharmaceutical products in China, including the research, development and manufacturing of new drugs. The Drug Administration Law applies
to  entities  and  individuals  engaged  in  the  development,  production,  trade,  application,  supervision  and  administration  of  pharmaceutical
products,  which  regulates  and  provides  for  a  framework  for  the  administration  of  pharmaceutical  manufacturers,  pharmaceutical  trading
companies and medicinal preparations of medical institutions, and the development, research, manufacturing, distribution, packaging, pricing
and  advertisements  of  pharmaceutical  products.  The  Implementing  Measures  of  the  Drug  Administration  Law,  on  the  other  hand,  provides
detailed implementation regulations for the Drug Administration Law.

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The newly amended Drug Administration Law, which became effective on December 1, 2019, brought a series of changes to the
drug  supervision  and  administration  system,  including,  but  not  limited  to,  the  clarification  of  the  drug  marketing  authorization  holder
system,  pursuant  to  which  the  marketing  authorization  holder  should  assume  responsibilities  for  non-clinical  studies,  clinical  trials,
manufacturing  and  marketing,  post-marketing  studies,  monitoring,  reporting  and  handling  of  adverse  reactions  of  the  drug.  The
amendment also stipulates that the State supports the innovation of drugs with clinical value and specific or special effects on human
diseases,  encourages  the  development  of  drugs  with  new  therapeutic  mechanisms  and  have  multi-targeted,  systematic  regulatory  and
intervention functions on human body and promotes the technological advancement of drugs.

We are required to follow the above-mentioned regulations in respect of our non-clinical research, clinical trials and production of

new drugs.

Regulatory Authorities and Recent Government Reorganization

Pharmaceutical  products  and  medical  devices  and  equipment  in  China  are  monitored  and  supervised  on  a  national  scale  by  the
NMPA  (formerly  known  as  the  China  Food  and  Drug  Administration,  or  the  “CFDA”),  while  the  local  provincial  medical  products
administrative authorities are responsible for the supervision and administration of drugs within their respective administrative regions.
Pursuant  to  the  Decision  of  the  First  Session  of  the  Thirteenth  National  People’s  Congress  on  the  State  Council  Institutional  Reform
Proposal made by the NPC on March 17, 2018, the NMPA is no longer an independent agency and its duties should be performed by the
newly  established  State  Administration  for  Market  Regulation,  into  which  the  various  agencies  responsible  for,  among  other  areas,
consumer protection, advertising, anticorruption, pricing, fair competition and intellectual property, have been merged.

The NMPA is still the chief drug regulatory agency and implements the same laws, regulations, rules, and guidelines as the CFDA,
and the NMPA regulates almost all of the key stages of the life cycle of pharmaceutical products, including non-clinical studies, clinical
trials, marketing approvals, manufacturing, advertising and promotion, distribution, and pharmacovigilance (i.e., post-marketing safety
reporting obligations). The Center for Drug Evaluation (the “CDE”), which remains under the NMPA, conducts the technical evaluation
of each drug and biologic application for safety and effectiveness.

Formed on March 2018, the National Health Commission (the “NHC”) (formerly known as the Ministry of Health (“MOH”) and the
National  Health  and  Family  Planning  Commission  (“NHFPC”))  is  China’s  chief  healthcare  regulator.  It  is  primarily  responsible  for
overseeing  the  operation  of  medical  institutions,  which  also  serve  as  clinical  trial  sites,  and  regulating  the  licensure  of  hospitals  and
medical personnel. The NHC plays a significant role in drug reimbursement. Furthermore, the NHC and its local counterparts at or below
provincial-level local governments also oversee and organize public medical institutions’ centralized bidding and procurement process
for pharmaceutical products, which is the chief means through which public hospitals and their internal pharmacies acquire drugs.

Also,  as  part  of  its  2018  reorganization,  the  PRC  government  formed  a  new  National  Healthcare  Security  Administration,  which

focuses on regulating reimbursement under the state-sponsored insurance plans.

Non-Clinical Research

On  August  6,  2003,  the  NMPA  promulgated  the  Administrative  Measures  for  Good  Laboratories  Practice  of  Non-clinical
Laboratory,  which  was  revised  on  July  27,  2017,  to  improve  the  quality  of  non-clinical  research,  and  began  to  conduct  the  Good
Laboratories  Practice.  Pursuant  to  the  Circular  on  Administrative  Measures  for  Certification  of  Good  Laboratory  Practice  for  Non-
clinical  Laboratory  issued  by  the  NMPA  on  April  16,  2007,  the  NMPA  is  responsible  for  the  certification  of  non-clinical  research
institutions  nationwide  and  local  provincial  medical  products  administrative  authorities  is  in  charge  of  the  daily  supervision  of  non-
clinical research institution. The NMPA decides whether an institution is qualified for undertaking pharmaceutical non-clinical research
by evaluating such institution’s organizational administration, its research personnel, its equipment and facilities, and its operation and
management of non-clinical pharmaceutical projects. A Good Laboratory Practice Certification will be issued by the NMPA if all the
relevant requirements are satisfied, which will also be published on the NMPA’s website.

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Pursuant to the Regulations for the Administration of Affairs Concerning Experimental Animals promulgated by the State Science
and Technology Commission on November 14, 1988 and amended on January 8, 2011, July 18, 2013 and March 1, 2017, respectively, by
the State Council, the Administrative Measures on Good Practice of Experimental Animals jointly promulgated by the State Science and
Technology  Commission  and  the  State  Bureau  of  Quality  and  Technical  Supervision  on  December  11,  1997,  and  the  Administrative
Measures on the Certificate for Experimental Animals (Trial) promulgated by the State Science and Technology Commission and other
regulatory authorities on December 5, 2001, a Certificate for Use of Laboratory Animals is required for performing experimentation on
animals. Applicants must satisfy the following conditions:

● Laboratory  animals  must  be  qualified  and  sourced  from  institutions  that  have  Certificates  for  Production  of  Laboratory

Animals;

● The environment and facilities for the animals’ living and propagating must meet national requirements;

● The animals’ feed and water must meet national requirements;

● The animals’ feeding and experimentation must be conducted by professionals, specialized and skilled workers, or other trained

personnel;

● The management systems must be effective and efficient; and

● The applicable entity must follow other requirements as stipulated by Chinese laws and regulations.

Pre-clinical and Clinical Development

The  NMPA  requires  supporting  pre-clinical  data  for  the  registration  applications  for  imported  and  domestic  drugs.  Pre-clinical
work,  including  pharmacology  and  toxicology  studies,  must  satisfy  the  requirements  of  the  Administrative  Measures  for  Good
Laboratories Practice of Non-clinical Laboratory. No approval is required from the NMPA to conduct pre-clinical studies.

Clinical Trials and Registration of New Drugs

Categories—

On  January  22,  2020,  the  SAMR  promulgated  the  new  Administrative  Measures  for  Drug  Registration  (the  “Measures  for  Drug
Registration”),  which  became  effective  from  July  1,  2020  and  provided  the  standards  and  requirements  for  clinical  trials  and  drug
registration applications. According to the Measures for Drug Registration, drug registration applications are divided into three different
types, namely, traditional Chinese medicine, chemical medicine, and biological products, and each type is further divided into several
sub-types.

The category and corresponding application requirements will be promulgated by the NMPA based on a drug’s working mechanism,
degree of innovation, and the need of review management. As provided in the New Administrative Measures for Registration, the Drug
Administration  Law  and  Implementing  Measures  of  the  Drug  Administration  Law,  upon  completion  of  non-clinical  research,  clinical
trials should be conducted for the application of new drug registration.

Clinical Trial Approval—

All  clinical  trials  conducted  in  China  for  new  drug  development  must  be  approved  and  conducted  at  pharmaceutical  clinical  trial
institution which should be under filing administration. For imported drugs, proof of foreign approval is required prior to the trial, unless
the  drug  has  never  been  approved  anywhere  in  the  world.  In  addition  to  a  standalone  trial  in  China,  imported  drug  applicants  may
establish  a  site  in  China  as  part  of  an  international  multi-center  trial  (the  “IMCT”)  at  the  outset  of  the  global  trial.  Domestically
manufactured drugs are not subject to foreign approval requirements, and by contrast to prior practice, the NMPA has recently decided to
also permit such drugs to be tested and developed through an IMCT.

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In  addition,  the  NMPA  has  adopted  a  notification  system  for  clinical  trials  of  new  drugs.  Pursuant  to  the  newly  amended  Drug
Administration Law and the Measures for Drug Registration, effective from July 1, 2020, clinical trials may be commenced as long as
the  applicant  has  not  received  any  objections  from  the  CDE  within  60  business  days  of  application  filing  after  acceptance  of  the
application, and such application will be deemed as approved. Bioequivalence test may only be conducted after the completion of record-
filing on the website of the CDE. All clinical trials that have been approved but not initiated within three years since the execution of the
Informed Consent Forms will become invalid. As provided in the Measures for Drug Registration, a new application of clinical trial must
be submitted if an applicant of an approved clinical trial decides to add new indications or drug combinations into the trial.

Drug Clinical Trial Registration

On September 6, 2013, the NMPA released the Announcement on Drug Clinical Trial Information Platform, providing that for all
clinical trials approved by the NMPA and conducted in China, clinical trial registration should be completed and trial information should
be published through the Drug Clinical Trial Information Platform. The applicant should complete trial pre-registration within one month
after  obtaining  the  clinical  trial  approval  to  obtain  the  trial’s  unique  registration  number  and  should  complete  registration  of  certain
follow-up information before the first subject’s enrollment in the trial. If approval of the foregoing pre-registration and registration is not
obtained within one year after obtaining the clinical trial approval, the applicant should submit an explanation, and if the procedure is not
completed within three years, the clinical trial approval will automatically expire.

Pursuant  to  the  Measures  for  Drug  Registration,  during  the  period  of  clinical  trial,  the  applicant  must  continuously  update  the
registration  information  and  the  trial  results  after  completion  of  each  clinical  trial  on  the  Drug  Clinical  Trial  Information  Platform.
Applicants are responsible for the authenticity of the registration information.

Human Genetic Resources Approval—

On June 10, 1998, the Ministry of Science and Technology and the MOH jointly established the rules for protecting and utilizing
human genetic resources in China. On July 2, 2015, the Ministry of Science and Technology issued the Service Guide for Administrative
Licensing  Items  concerning  Examination  and  Approval  of  Sampling,  Collecting,  Trading,  Exporting  Human  Genetic  Resources,  or
Taking Such Resources out of the PRC, which provides that foreign-invested sponsors that sample and collect human genetic resources
in  clinical  trials  are  required  to  file  with  the  China  Human  Genetic  Resources  Management  Office  through  its  online  system.  On
October  26,  2017,  the  Ministry  of  Science  and  Technology  issued  the  Circular  on  Optimizing  the  Administrative  Examination  and
Approval  of  Human  Genetic  Resources,  which  simplified  the  approval  for  sampling  and  collecting  human  genetic  resources  for  the
purpose of commercializing a drug in the PRC.

On  May  28,  2019,  the  State  Council  of  the  PRC  issued  the  PRC  Administrational  Rules  on  the  Management  of  Human  Genetic
Resources  (effective  from  July  1,  2019)  (“Genetic  Rules”),  which  formalized  the  approval  requirements  pertinent  to  research
collaborations  between  Chinese  and  foreign-owned  entities.  Pursuant  to  this  new  rule,  a  new  notification  system  (as  opposed  to  the
advance  approval  approach  originally  in  place)  is  put  in  place  for  clinical  trials  using  China’s  human  genetic  resources  at  clinical
institutions without involving the export of human genetic resources outside of China.

On October 17, 2020, the Standing Committee of the NPC promulgated the Biosecurity Law of the PRC, which became effective
from April 15, 2021. The new law restates the approval and notification requirements of human genetic resources sampling, collecting,
utilizing and exporting, as provided in the Genetic Rules. Moreover, the promulgation of the new law, which takes the form of national
law, further demonstrates the commitments of protecting China’s human genetic resources and safeguarding state biosecurity by the PRC
government.

Trial Exemptions and Acceptance of Foreign Data—

The NMPA may reduce its requirements for clinical trials and data, depending on the drug and the existing data. The NMPA has
granted waivers for all or part of trials and has stated that it will accept data generated abroad (even if not as part of a global study),
including  early  phase  data,  that  meets  its  requirements.  On  July  6,  2018,  the  NMPA  issued  the  Technical  Guidance  Principles  on
Accepting Foreign Drug Clinical Trial Data (the “Guidance Principles”) as one of the implementing rules for the Innovation Opinion.
According  to  the  Guidance  Principles,  the  data  of  foreign  clinical  trials  must  meet  the  authenticity,  completeness,  accuracy  and
traceability requirements, and such data must be obtained in consistency with the relevant requirements under the Good Clinical Trial
Practice  (GCP)  of  the  International  Conference  on  Harmonization  of  Technical  Requirements  for  Registration  of  Pharmaceuticals  for
Human Use (the “ICH”). Clinical trial sponsors must be attentive to potentially meaningful ethnic differences in the subject population.

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The NMPA now officially permits, and its predecessor agencies have permitted on a case-by-case basis in the past, drugs approved
outside  of  China  to  be  approved  in  China  on  a  conditional  basis  without  pre-approval  clinical  trials  being  conducted  in  China.
Specifically, in 2018, the NMPA issued the Procedures for Reviewing and Approval of Clinical Urgently Needed Overseas New Drugs,
permitting drugs that have been approved within the last ten years in the United States, the European Union or Japan and that prevent or
treat orphan diseases or prevent or treat serious life-threatening illnesses for which there is either no effective therapy in China or for
which the foreign-approved drug would have clear clinical advantages. Applicants will be required to establish a risk mitigation plan and
may be required to complete trials in China after the drug has been marketed. The CDE has developed a list of qualifying drugs that meet
the foregoing criteria.

Clinical Trial Process and Good Clinical Practices—

Typically,  drug  clinical  trials  in  China  have  four  phases.  Phase  1  refers  to  the  initial  clinical  pharmacology  and  human  safety
evaluation  studies.  Phase  2  refers  to  the  preliminary  evaluation  of  a  drug  candidate’s  therapeutic  efficacy  and  safety  for  target
indication(s)  in  patients.  Phase  3  (often  the  pivotal  study)  refers  to  clinical  trials  that  further  verify  the  drug  candidate’s  therapeutic
efficacy and safety on patients with target indication(s) and ultimately provide sufficient evidence for the review of a drug registration
application. Phase 4 refers to a new drug’s post-marketing study to assess therapeutic effectiveness and adverse reactions when the drug
is widely used, to evaluate overall benefit-risk relationships of the drug when used among the general population or specific groups and
to adjust the administration dose, etc.

On August 6, 2003, the NMPA promulgated the Administration of Quality of Drug Clinical Practice (the “GCP”) to improve the
quality of clinical trials, which was lately revised in 2020. Pursuant to the newly amended Drug Administrative Law, and the Regulations
on the Administration of Drug Clinical Trial Institution jointly promulgated by NMPA and NHC on November 29, 2019 and effective
from December 1, 2019, drug clinical trial institutions should be under filing administration. Clinical trial institutions that only conduct
analysis  of  biological  samples  related  to  clinical  trials  of  drugs  do  not  need  to  be  filed.  Pursuant  to  the  Circular  on  Measures  for
Certification of Good Laboratory Practice for Non-clinical Laboratory, a Good Laboratory Practice Certification will be issued by the
NMPA if all the relevant requirements are satisfied, which will also be published on the NMPA’s website. Pursuant to the Opinions on
Deepening the Reform of the Evaluation and Approval System and Inspiring Innovation of Drugs and Medical Devices and Equipment,
the accreditation of the institutions for drug clinical trials should be subject to record-filing administration. The conduct of clinical trials
must  adhere  to  the  Good  Laboratory  Practice,  and  the  protocols  must  be  approved  by  the  ethics  committees  of  each  study  site.  On
April 23, 2020, the NMPA and NHC jointly issued the amended Administration of Quality of Drug Clinical Practice (the “new GCP”),
effective from July 1, 2020. The new GCP was highly consistent with ICH E6 (R2) in its structure and content, and highly emphasized
the  protection  of  subjects,  in  particular,  the  protection  of  vulnerable  subjects  was  provided  through  reinforcing  the  ethics  committee’s
responsibilities. Furthermore, the new GCP clarified the investigator’s responsibilities for medical decisions relevant to the clinical trials
and  overseeing  the  clinical  trials  to  ensure  the  accuracy  and  completeness  of  the  source  data,  it  also  included  the  sponsor’s
responsibilities for implementing and maintaining the quality management system, requiring that the electronic data management system
used by the sponsor should be verifiable, equipped with grant of modification authority and data security measures, to ensure the data
modification  process  is  completely  recorded  and  tracked.  The  new  GCP  also  prohibited  the  conduct  of  biological  sample  testing
irrelevant to the study protocol approved by the ethics committee.

Reform of Evaluation and Approval System for Drugs

On August 9, 2015, the State Council promulgated the Opinions on the Reform of Evaluation and Approval System for Drugs and
Medical  Devices  and  Equipment,  which  establishes  the  reform  framework  of  the  evaluation  and  approval  system  for  drugs,  medical
devices and equipment, indicating the enhancement of the standard of approval for drug registration and accelerating the evaluation and
approval process for innovative drugs.

On  November  11,  2015,  the  NMPA  issued  the  Circular  Concerning  Several  Policies  on  Drug  Registration  Review  and  Approval,

which further clarifies the measures and policies with regard to the simplification and acceleration of the approval process for drugs.

According to the Decision of the NMPA on Adjusting the Approval Procedures under the Administrative Approval Items for Certain
Drugs made on March 17, 2017 and effective from May 1, 2017, the approval for a clinical trial application can be directly issued by the
CDE under the NMPA on behalf of the NMPA.

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On October 8, 2017, the General Office of the State Council promulgated the Opinions on Deepening the Reform of the Review and
Approval  System  and  Encouraging  the  Innovation  of  Pharmaceutical  and  Medical  Devices,  which  further  promotes  the  structural
adjustment to and technical innovations of drugs, medical devices and equipment.

On May 17, 2018, the NMPA and the NHC jointly issued the Circular on Issues Concerning Optimizing Drug Registration Review

and Approval, which further simplifies and accelerates the clinical trial approval process.

On  January  22,  2020,  the  SAMR  promulgated  the  Measures  for  Drug  Registration,  effective  from  July  1,  2020,  which  deploys
several  mechanisms  to  simplify  and  accelerate  the  drug  registration  process,  including  the  Priority  Review  Procedure  and  the  Special
Review Procedure.

On  July  7,  2020,  the  NMPA  promulgated  the  Evaluation  and  Approval  Working  Process  for  Revolutionary  Therapeutic  Drugs
(Trial),  the  Evaluation  and  Approval  Working  Process  for  the  Conditional  Approval  Application  of  Drugs  (Trial)  and  the  Priority
Evaluation  and  Approval  Working  Process  for  Drugs  (Trial),  repealing  the  Opinions  on  Encouraging  the  Prioritized  Evaluation  and
Approval for Drug Innovations, which provide for fast track clinical trial approval, drug registration pathway or conditional approval to
innovative drugs or drugs with revolutionary therapeutic effects.

On November 19, 2020, CDE promulgated the Clinical Technical Guidelines for Conditional Approval of Drugs (Tentative), which
became  effective  on  the  same  day,  to  accelerate  the  marketing  of  clinically  urgent  drugs  with  outstanding  clinical  value  in  China.
According  to  such  guidelines,  during  the  period  of  drug  clinical  trials,  a  drug  may  be  applied  for  conditional  approval  if  it  meets  the
following conditions: (i) for the treatment of seriously life-threatening diseases with no existing effective treatment available, as well as
medicines  urgently  needed  for  public  health,  whose  clinical  trials  have  shown  efficacy  and  whose  clinical  value  can  be  predicted;
(ii)  vaccines  that  are  urgently  needed  in  response  to  major  public  health  emergencies  or  other  vaccines  that  are  identified  as  being
urgently needed by the NHC, and whose benefits are assessed to outweigh the risks.

Special Examination and Fast Track Approval for Innovative Drugs under Current Reform Frame

Pursuant to the Provisions on the Administration of Special Examination and Approval of Registration of New Drugs promulgated
by the NMPA on January 7, 2009, the NMPA conducts special examination and approval for new drug registration applications when,
among others, (1) the effective constituent of a drug extracted from plants, animals, minerals, etc., as well as the preparations thereof,
have never been marketed in China, or the material medicines and the preparations thereof are newly discovered; (2) the chemical raw
material medicines as well as the preparations thereof and the biological product have not been approved for marketing anywhere in the
world;  (3)  the  new  drugs  are  for  treating  AIDS,  malignant  tumors  and  rare  diseases,  etc.,  and  have  obvious  advantages  in  clinical
treatment; or (4) the new drugs are for treating diseases with no effective methods of treatment. The Provisions on the Administration of
Special  Examination  and  Approval  of  Registration  of  New  Drugs  provides  that  the  applicant  may  file  for  special  examination  and
approval  at  the  clinical  trial  application  stage  if  the  drug  candidate  falls  within  items  (1)  or  (2).  The  provisions  provide  that  for  drug
candidates  that  fall  within  items  (3)  or  (4),  the  application  for  special  examination  and  approval  cannot  be  made  until  filing  for
production.

The Circular Concerning Several Policies on Drug Registration Review and Approval issued on November 11, 2015 further clarifies
the  above-mentioned  policy,  potentially  simplifying  and  accelerating  the  approval  process  of  clinical  trials:  (x)  a  one-time  umbrella
approval  procedure  allowing  the  overall  approval  of  all  phases  of  a  new  drug’s  clinical  trials,  replacing  the  current  phase-by-phase
application and approval procedure, will be adopted for new drugs’ clinical trial applications; and (y) a fast track drug registration or
clinical trial approval pathway for the following applications: (i) registration of innovative new drugs treating AIDS, malignant tumors,
serious infectious diseases and rare diseases; (ii) registration of pediatric drugs; (iii) registration of drugs treating specific or prevalent
diseases  in  elders;  (iv)  registration  of  drugs  listed  in  national  major  science  and  technology  projects  or  national  key  research  and
development  plan;  (v)  registration  of  innovative  drugs  using  advanced  technology,  using  innovative  treatment  methods,  or  having
distinctive  clinical  benefits;  (vi)  registration  of  foreign  innovative  drugs  to  be  manufactured  locally  in  China;  (vii)  concurrent
applications  for  new  drug  clinical  trials  which  are  already  approved  in  the  United  States  or  the  European  Union  or  concurrent  drug
registration applications for drugs which have applied to the competent drug approval authorities for marketing authorization and passed
such  authorities’  onsite  inspections  in  the  United  States  or  European  Union  and  are  manufactured  using  the  same  production  line  in
China;  and  (viii)  clinical  trial  approval  for  drugs  with  urgent  clinical  need  and  patent  expiry  within  three  years,  and  manufacturing
authorization applications for drugs with urgent clinical need and patent expiry within one year.

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On  July  7,  2020,  the  NMPA  promulgated  the  Evaluation  and  Approval  Working  Process  for  Revolutionary  Therapeutic  Drugs
(Trial),  the  Evaluation  and  Approval  Working  Process  for  the  Conditional  Approval  Application  of  Drugs  (Trial)  and  the  Priority
Evaluation  and  Approval  Working  Process  for  Drugs  (Trial),  which  provide  for  fast  track  clinical  trial  approval,  drug  registration
pathway or conditional approval to innovative drugs or drugs with revolutionary therapeutic effects.

The Opinions on the Reform of Evaluation and Approval System for Drugs and Medical Devices and Equipment promulgated on
August  9,  2015  provides  that  the  composition  of  the  examiner  team  of  the  CDE  should  be  strengthened  by,  among  other  actions,
(1) recruiting professional evaluation talent from the public, (2) engaging relevant experts to participate in technological examination and
evaluation,  and  (3)  establishing  a  system  of  chief  professional  positions.  Additionally,  the  Opinions  on  Encouraging  the  Prioritized
Evaluation and Approval for Drug Innovations emphasizes the improvement of the examination and evaluation system, which requires
the  establishment  of  a  new  drug  examination  and  evaluation  team  comprising  professionals  specialized  in  clinical  medicine,
pharmaceutical sciences, pharmacology, toxicology and statistics. As a result, since 2015, the NMPA and the CDE have started a large-
scale expansion of examiners, which could greatly accelerate the new drug approval process in China.

Pursuant to the Measures for Drug Registration, at the stage of clinical trial application, depending on the characteristics of the drug
and the corresponding conditions, applicants may apply for adoption of the Breakthrough Drug Procedure or the Conditioned Approval
Procedure.  Such  procedures  may  be  applied  for  eligible  drugs,  including  drugs  for  fatal  diseases  without  any  effective  treatment  and
breakthrough  drugs,  and  extra  policy  support,  including  communication  with  the  CDE  at  the  critical  stage  of  clinical  trials  and
suggestions from the CDE may be given to applicants in such special procedures.

Manufacturing and Distribution

According to the Drug Administration Law, all facilities that manufacture drugs in China must receive a drug manufacturing license
from  the  local  drug  regulatory  authority.  Each  drug  manufacturing  license  issued  to  a  pharmaceutical  manufacturing  enterprise  is
effective for a period of five years. Any enterprise holding a drug manufacturing license is subject to review by the relevant regulatory
authorities on an annual basis.

Similarly, to conduct sales, importation, shipping and storage (collectively, the “distribution activities”), a company must obtain a

Drug Distribution License from the local drug regulatory authority, subject to renewal every five years.

China  has  implemented  a  “Two-Invoice  System”  to  control  the  distribution  of  prescription  drugs.  The  “Two-Invoice  System”
generally requires that no more than two invoices be issued throughout the distribution chain: one from the manufacturer to a distributor
and another from the distributor to the end-user hospital. This excludes the sale of products invoiced from the manufacturer to its wholly-
owned  or  controlled  distributors,  or  for  imported  drugs,  to  its  exclusive  distributor,  or  from  a  distributor  to  its  wholly-owned  or
controlled subsidiary (or between its wholly-owned or controlled subsidiaries). However, the system still significantly limits the options
for  companies  to  use  multiple  distributors  to  reach  a  larger  geographic  area  in  China.  Compliance  with  the  Two-Invoice  System  is  a
prerequisite for pharmaceutical companies to participate in the procurement processes of public hospitals, which currently provide most
of  China’s  healthcare  services.  Manufacturers  and  distributors  that  fail  to  implement  the  Two-Invoice  System  may  lose  their
qualifications to participate in the bidding process. Non-compliant manufacturers may also be blacklisted from engaging in drug sales to
public hospitals in a locality.

The Two-Invoice System was first implemented in 11 provinces involved in pilot comprehensive medical reforms, and the program

has been expanded to nearly all provinces, each with its own individual rules for the program.

New Drug Application

Pursuant to the Measures for Drug Registration, upon completion of relevant research and other preparation work, the applicant may
apply to the NMPA for approval of a new drug application. The NMPA will then determine whether to approve the application according
to the comprehensive evaluation opinion issued by the CDE of the NMPA.

At the stage of new drug application, depending on the characteristics of the drug and the corresponding conditions, applicants may
apply for adoption of special procedures, including the Priority Review Procedure and the Special Review Procedure. Such procedures
may be applied for innovative drugs for severe infectious diseases or rare diseases, breakthrough drugs and other eligible drugs stipulated
in  the  Measures  for  Drug  Registration.  Extra  policy  support,  including  less  review  period,  may  be  given  to  applicants  in  such  special
procedures.

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International Multi-center Clinical Trials Regulations

On January 30, 2015, the NMPA promulgated the Notice on Issuing the International Multi-Center Clinical Trial Guidelines (Trial),
effective  as  of  March  1,  2015,  to  provide  guidance  on  the  regulation  of  the  application,  implementation  and  administration  of
international  multi-center  clinical  trials  in  China.  Pursuant  to  the  Notice  on  Issuing  the  International  Multi-Center  Clinical  Trial
Guidelines (Trial), international multi-center clinical trial applicants may simultaneously perform clinical trials in different centers using
the same clinical trial protocol. Where the applicant plans to make use of the data derived from the international multi-center clinical
trials for its application to the NMPA for approval of a new drug application, such international multi-center clinical trials should satisfy,
in addition to the requirements set forth in the Drug Administration Law and its implementation measures, the Administrative Measures
for Drug Registration and other relevant laws and regulations, the following requirements:

● The applicant should first conduct an overall evaluation on the global clinical trial data and further make trend analysis of the
Asian  and  Chinese  clinical  trial  data.  In  the  analysis  of  Chinese  clinical  trial  data,  the  applicant  should  consider  the
representativeness of the research subjects, i.e., the participating patients;

● The applicant should analyze whether the amount of Chinese research subjects is sufficient to assess and adjudicate the safety

and effectiveness of the drug under clinical trial, and satisfy the statistical and relevant legal requirements; and

● The  onshore  and  offshore  international  multi-center  clinical  trial  research  centers  should  be  subject  to  on-site  inspections  by

competent PRC governmental agencies.

International multi-center clinical trials should follow international prevailing GCP principles and ethics requirements. Applications
should ensure the truthfulness, reliability and trustworthiness of clinical trials results; the researchers should have the qualification and
capability  to  perform  relevant  clinical  trials;  and  an  ethics  committee  should  continuously  review  the  trials  and  protect  the  subjects’
interests, benefits and safety. Before the performance of the international multi-center clinical trial, applicants should obtain clinical trial
approvals or complete filings pursuant to requirements under the local regulations where clinical trials are conducted, and register and
disclose the information of all major researchers and clinical trial organizations on the NMPA Drug Clinical Trial Information Platform.

Pursuant to the Opinions on Deepening the Reform of the Evaluation and Approval System and Inspiring Innovation of Drugs and
Medical Devices and Equipment, clinical trial data obtained from foreign centers may be used to apply for registration in China as long
as such data meet the relevant requirements for the registration of drugs and medical devices in China. According to the International
Multi-Center Clinical Trial Guidelines (Trial), when using international multi-center clinical trial data to support new drug applications in
China,  applicants  should  submit  the  completed  global  clinical  trial  report,  statistical  analysis  report  and  database,  along  with  relevant
supporting data in accordance with ICH-CTD (International Conference on Harmonization-Common Technical Document) content and
format requirements; subgroup research results summary and comparative analysis should also be conducted concurrently.

Marketing Authorization Holder System

Pursuant  to  the  Opinions  on  the  Reform  of  Evaluation  and  Approval  System  for  Drugs  and  Medical  Devices  and  Equipment
promulgated on August 9, 2015, the State Council published the policy for carrying out a pilot plan for the drug marketing authorization
holder mechanism.

Pursuant to the newly amended Drug Administrative Law, under the drug marketing authorization holder mechanism, an enterprise
or a research and development institution, which has obtained a drug registration certificate is eligible to be a pharmaceutical marketing
authorization holder and the drug marketing authorization holder should be responsible for nonclinical laboratory studies, clinical trials,
production  and  distribution,  post-market  studies,  and  the  monitoring,  reporting,  and  handling  of  adverse  reactions  in  connection  with
pharmaceuticals in accordance with the provisions of the Drug Administrative Law. The pharmaceutical marketing authorization holder
may  engage  contract  manufacturers  for  manufacturing,  provided  that  the  contract  manufacturers  are  licensed  and  may  engage
pharmaceutical  distribution  enterprises  with  drug  distribution  license  for  the  distribution  activities.  Upon  the  approval  of  the  medical
products  administrative  department  under  the  State  Council,  a  drug  marketing  authorization  holder  may  transfer  the  drug  marketing
license and the transferee should have the capability of quality management, risk prevention and control, and liability compensation to
ensure the safety, effectiveness and quality controllability of drugs, and fulfill the obligations of the drug marketing license holder.

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Administrative Observation Periods for New Drugs

According to the Implementing Measures of the Drug Administration Law, the NMPA may, for the purposes of protecting public
health, set an administrative observation period of not more than five years for a new drug produced by a drug manufacturer. During the
administrative observation period, no approval will be given to any other manufacturer to produce or import the said drug.

Non-Inferiority Standard

In  China,  a  drug  may  receive  regulatory  approval  without  showing  superiority  in  its  primary  endpoint.  Rather,  a  drug  may  be

approved for use if it shows non-inferiority in its primary endpoint and superiority in one of its secondary endpoints.

Packaging of Pharmaceutical Products

Pursuant to the Administration of Quality of Drug Clinical Practice, the applicant should be responsible for proper packaging and
labeling  of  drugs  for  clinical  trials,  and  in  double-blinded  clinical  trials,  the  test  drug  should  be  consistent  with  the  control  drug  or
placebo  in  appearance,  odor,  packaging,  labeling,  and  certain  other  features.  According  to  the  Measures  for  the  Administration  of
Pharmaceutical  Packaging  promulgated  on  February  12,  1988  and  effective  from  September  1,  1988,  pharmaceutical  packaging  must
comply with national and professional standards. If there is no national or professional standard available, an applicant may formulate
and implement its own standards after obtaining the approval of the provincial administration or bureau of standards. The applicant must
reapply if it needs to change its own packaging standards. Drugs that have not been developed and approved for packaging standards
must not be sold or marketed in the PRC (except for drugs for the military).

National List of Essential Drugs

On  August  18,  2009,  the  MOH  and  eight  other  ministries  and  commissions  in  the  PRC  issued  the  Provisional  Measures  on  the
Administration of the National List of Essential Drugs which was revised on February 13, 2015 aim to promote essential medicines sold
to  consumers  at  fair  prices  in  the  PRC  and  ensure  that  the  general  public  in  the  PRC  has  equal  access  to  the  drugs  contained  in  the
National List of Essential Drugs. The MOH promulgated the National List of Essential Drugs on March 13, 2013 and on October 25,
2018. According to these regulations, basic healthcare institutions funded by the government should store up and use drugs listed in the
National  List  of  Essential  Drugs.  The  drugs  listed  in  the  National  List  of  Essential  Drugs  should  be  purchased  by  centralized  tender
process and should be subject to the price control by the National Development and Reform Commission (the “NDRC”). Remedial drugs
in the National List of Essential Drugs are all listed in the NRDL and the purchase price of such drugs is entitled to reimbursement.

Government Price Controls

The Chinese government has abolished the 15-year-old government-led pricing system for drugs. On May 4, 2015, the NDRC and
six other ministries and commissions in the PRC issued the Opinion on Promoting Drug Pricing Reform, which lifted the government-
prescribed  maximum  retail  price  for  most  drugs,  except  for  narcotic  drugs  and  Class  I  psychotropic  drugs.  The  government  regulates
drug prices mainly by establishing a consolidated procurement mechanism, restructuring medical insurance reimbursement standards and
strengthening the regulation of medical and pricing practices as discussed below.

Centralized Procurement and Tenders

Under  the  current  regulations,  public  medical  institutions  owned  by  the  government  or  owned  by  State-owned  or  controlled
enterprises are required to purchase pharmaceutical products through centralized online procurement processes. There are exceptions for
drugs  on  the  National  List  of  Essential  Drugs,  which  have  their  own  procurement  rules,  and  for  certain  drugs  subject  to  the  central
government’s special control, such as toxic, radioactive and narcotic drugs and traditional Chinese medicines.

The  centralized  procurement  process  takes  the  form  of  public  tenders  operated  by  provincial  or  municipal-level  government
agencies. The centralized tender process is typically conducted once every year. The bids are assessed by a committee randomly selected
from a database of experts. The committee members assess the bids based on a number of factors, including, but not limited to, bid price,
product  quality,  clinical  effectiveness,  product  safety,  level  of  technology,  qualifications  and  reputation  of  the  manufacturer,  after-sale
services and innovation.

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The State Council approved state-run centralized medicine procurement and 11 pilot cities for the program in a circular issued on
January 17, 2019. It is an effort to deepen reform of the medical and health sector and optimize the pricing system of drugs. According to
the circular, in the 11 pilot cities drugs will be selected from generic brands for centralized medicine procurement. The selected drugs
must  pass  the  consistency  evaluation  on  quality  and  effectiveness.  The  policy  is  aimed  at  lowering  drug  costs  for  patients,  reducing
transaction  costs  for  enterprises,  regulating  drug  use  of  institutions,  and  improving  the  centralized  medicine  procurement  and  pricing
system. The centralized procurement is open to all approved enterprises that can produce drugs on the procurement list in China. Clinical
effects,  adverse  reactions,  and  batch  stability  of  the  drugs  will  be  considered,  and  their  consistency  will  be  the  main  criteria  for
evaluation, while production capacity and stability of the supplier will also be considered.

Commercial Insurance

On October 25, 2016, the State Council issued the Plan for Healthy China 2030. According to the Plan, the country will establish a
multi-level medical security system built around basic medical insurance, with other forms of insurance supplementing the basic medical
insurance,  including  serious  illness  insurance  for  urban  and  rural  residents,  commercial  health  insurance  and  medical  assistance.
Furthermore,  the  Plan  encourages  enterprises  and  individuals  to  participate  in  commercial  health  insurance  and  various  forms  of
supplementary insurance. The evolving medical insurance system makes innovative drugs more affordable and universally available to
the  Chinese  population,  which  renders  greater  opportunities  to  drug  manufacturers  that  focus  on  the  research  and  development  of
innovative drugs, such as high-cost cancer therapeutics.

Healthcare System Reform

The PRC government recently promulgated several healthcare reform policies and regulations to reform the healthcare system. On
March 17, 2009, the State Council issued the Guidelines on Strengthening the Reform of Healthcare System. On December 27, 2016, the
State  Council  issued  the  Notice  on  the  Issuance  of  the  13th  Five-year  Plan  on  Strengthening  the  Reform  of  Healthcare  System.  On
May 23, 2019, the General Office of the State Council issued the Notice on the Main Tasks of Strengthening the Reform of Healthcare
System  in  2019,  which  specified  the  key  legislative  work  of  the  national  medical  and  health  system  and  the  key  tasks  to  promote  its
implementation. Twenty-one specific tasks have been proposed to address the difficulty and high cost of getting medical services and to
strengthen hospital management.

Chronic Diseases Prevention and Treatment

Pursuant  to  the  Guiding  Opinion  of  the  General  Office  of  the  State  Council  on  Promoting  the  Construction  of  the  Hierarchical
Healthcare System issued by the General Office of the State Council on September 8, 2015 and the Notice on Promoting Pilot Work for
Hierarchical  Healthcare  System  jointly  promulgated  by  the  NHFPC  and  the  State  Administration  of  Traditional  Chinese  Medicine  on
August  19,  2016,  the  hierarchical  healthcare  system  is  expected  to  be  gradually  improved,  and  the  framework  for  division  and
coordination  among  medical  and  health  institutions  should  be  substantially  established  by  2017,  and  a  diagnosis  and  treatment  model
featuring objectives, such as initial diagnosis of common diseases and frequent diseases at primary hospitals and separate treatment of
acute and chronic diseases, are expected to be gradually established. According to the Guiding Opinion of the General Office of the State
Council  on  Promoting  the  Construction  of  the  Hierarchical  Healthcare  System,  several  chronic  diseases,  including  hypertension,
diabetes,  cancer  and  cardiovascular  and  cerebrovascular  diseases,  are  pilot  diseases  under  the  hierarchical  healthcare  system.  Primary
healthcare  institutions,  rehabilitation  hospitals  and  nursing  institutions  may  provide  treatment,  rehabilitation  and  nursing  services  for
patients with chronic diseases, patients in stable conditions, elderly patients, and advanced cancer patients who have clear diagnosis and
stable disease conditions.

On January 22, 2017, the General Office of the State Council issued the Notice on the Medium and Long-Term Plan for Chronic
Disease Prevention and Treatment in China (2017-2025), which sets up the objectives of the management of diabetes patients, targeting
the  involvement  of  35  million  diabetic  patients  by  2020  and  40  million  by  2025  in  chronic  disease  management.  The  Notice  on  the
Medium  and  Long-Term  Plan  for  Chronic  Disease  Prevention  and  Treatment  in  China  (2017-2025)  reaffirms  that  the  hierarchical
healthcare system of chronic diseases such as diabetes should be promoted and encourages the initial diagnosis of common diseases and
frequent  diseases  at  primary  hospitals.  In  addition,  social  participation  in  regional  medical  services,  health  management  and  chronic
disease prevention services, as well as investments in the field of chronic disease prevention by social capital, are encouraged.

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Intellectual Property Rights

China became a member of the World Trade Organization and a party to the Agreement on Trade-Related Aspects of Intellectual
Property  Rights  on  December  11,  2001.  China  has  also  entered  into  several  international  conventions  on  intellectual  property  rights,
including,  but  not  limited  to,  the  Paris  Convention  for  the  Protection  of  Industrial  Property,  the  Madrid  Agreement  Concerning  the
International Registration of Marks, and the Patent Cooperation Treaty.

Patents

Pursuant  to  the  PRC  Patent  Law  promulgated  by  the  Standing  Committee  of  the  NPC  on  March  12,  1984  and  amended  on
September  4,  1992,  August  25,  2000,  December  27,  2008  and  October  17,  2020,  respectively,  and  the  latest  revision  thereto  became
effective from June 1, 2021, and the Implementation Rules of the Patent Law of the PRC promulgated by the State Council on June 15,
2001 and amended on December 28, 2002 and January 9, 2010, respectively, patents in China fall into three categories: invention, utility
model  and  design.  An  invention  patent  is  granted  to  a  new  technical  solution  proposed  in  respect  of  a  product  or  method  or  an
improvement  of  a  product  or  method.  A  utility  model  is  granted  to  a  new  technical  solution  that  is  practicable  for  application  and
proposed in respect of the shape, structure or a combination of both of a product. A design patent is granted to the new design of a certain
product  in  shape,  pattern  or  a  combination  of  both  and  in  color,  shape  and  pattern  combinations  aesthetically  suitable  for  industrial
application. Under the PRC Patent Law, the term of patent protection starts from the date of application. Patents relating to invention are
effective for twenty years, patents relating to utility models are effective for ten years, and patents relating to designs are effective for
fifteen years, from the date of application. The PRC Patent Law adopts the principle of “first-to-file” system, which provides that where
more than one person files a patent application for the same invention, a patent will be granted to the person who files the application
first.

Existing patents can become narrowed, invalid or unenforceable due to a variety of grounds, including lack of novelty, creativity,
and deficiencies in patent application. In China, a patent must have novelty, creativity and practical applicability. Under the PRC Patent
Law, novelty means that before a patent application is filed, no identical invention or utility model has been publicly disclosed in any
publication in China or overseas or has been publicly used or made known to the public by any other means, whether in or outside of
China, nor has any other person filed with the patent authority an application that describes an identical invention or utility model and is
recorded  in  patent  application  documents  or  patent  documents  published  after  the  filing  date.  Creativity  means  that,  compared  with
existing technology, an invention has prominent substantial features and represents notable progress, and a utility model has substantial
features and represents any progress. Practical applicability means an invention or utility model can be manufactured or used and may
produce  positive  results.  Patents  in  China  are  filed  with  the  CNIPA.  Normally,  the  CNIPA  publishes  an  application  for  an  invention
patent within 18 months after the filing date, which may be shortened at the request of applicant. The applicant must apply to the CNIPA
for a substantive examination within three years from the date of application.

Article 19 of the PRC Patent Law provides that, for an invention or utility model completed in China, any applicant (not just Chinese
companies  and  individuals),  before  filing  a  patent  application  outside  of  China,  must  first  submit  it  to  the  CNIPA  for  a  confidential
examination. Failure to comply with this requirement will result in the denial of any Chinese patent for the relevant invention. This added
requirement of confidential examination by the CNIPA has raised concerns by foreign companies who conduct research and development
activities in China or outsource research and development activities to service providers in China.

Meanwhile, the Patent Law implements a “compensation for patent term” (the “Term Compensation”) measure. In the event that an
invention patent is granted after the forth (4th) anniversary of the date of application and the third (3rd) anniversary of the date of the
request for substantive examination, the Patent Administration Department of the State Council should, at the request of the patentee,
provide  the  Term  Compensation  for  the  unreasonable  delay  in  the  process  of  granting  the  patent,  except  for  the  unreasonable  delay
caused by the applicant. In particular, in order to compensate the time taken for the review and approval of new drugs, if the new drug-
related invention patents are approved for marketing in China, the Patent Administration Department of the State Council should provide
the Term Compensation to the patentee, for the duration of patent rights at the request of the patentee. The Term Compensation should
not  exceed  five  (5)  years,  and  the  total  effective  patent  right  period  after  the  new  drug  is  approved  for  marketing  should  not  exceed
fourteen (14) years.

Patent Enforcement

Unauthorized  use  of  patents  without  consent  from  owners  of  patents,  forgery  of  the  patents  belonging  to  other  persons,  or
engagement  in  other  patent  infringement  acts,  will  subject  the  infringers  to  infringement  liability.  Serious  offenses  such  as  forgery  of
patents may be subject to criminal penalties.

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When a dispute arises out of infringement of the patent owner’s patent right, Chinese law requires that the parties first attempt to
settle the dispute through mutual consultation. However, if the dispute cannot be settled through mutual consultation, the patent owner, or
an interested party who believes the patent is being infringed, may either file a civil legal suit or file an administrative complaint with the
relevant  patent  administration  authority.  A  Chinese  court  may  issue  a  preliminary  injunction  upon  the  patent  owner’s  or  an  interested
party’s request before instituting any legal proceedings or during the proceedings. Damages for infringement are calculated as the loss
suffered by the patent holder arising from the infringement, and if the loss suffered by the patent holder arising from the infringement
cannot be determined, the damages for infringement should be calculated as the benefit gained by the infringer from the infringement. If
it is difficult to ascertain damages in this manner, damages may be determined by using a reasonable multiple of the license fee under a
contractual  license.  Statutory  damages  may  be  awarded  in  the  circumstances  where  the  damages  cannot  be  determined  by  the  above-
mentioned calculation standards. The damage calculation methods should be applied in the aforementioned order. Generally, the patent
owner  has  the  burden  of  proving  that  the  patent  is  being  infringed.  However,  if  the  owner  of  an  invention  patent  for  manufacturing
process of a new product alleges infringement of its patent, the alleged infringer has the burden of proof.

Medical Patent Compulsory License

According to the PRC Patent Law, for the purpose of public health, the CNIPA may grant a compulsory license for manufacturing

patented drugs and exporting them to countries or regions covered under relevant international treaties to which the PRC has acceded.

Trade Secrets

Pursuant to the PRC Anti-Unfair Competition Law promulgated by the Standing Committee of the NPC on September 2, 1993 and
amended on November 4, 2017 and April 23, 2019, respectively, the term “trade secrets” refers to technical and business information that
is unknown to the public, has utility, may create business interests or profits for its legal owners or holders, and is maintained as a secret
by  its  legal  owners  or  holders.  Under  the  PRC  Anti-Unfair  Competition  Law,  business  persons  are  prohibited  from  infringing  others’
trade  secrets  by  (1)  obtaining  the  trade  secrets  from  the  legal  owners  or  holders  by  any  unfair  methods,  such  as  theft,  bribery,  fraud,
coercion,  electronic  intrusion,  or  any  other  illicit  means;  (2)  disclosing,  using  or  permitting  others  to  use  the  trade  secrets  obtained
illegally  under  item  (1)  above;  (3)  disclosing,  using  or  permitting  others  to  use  the  trade  secrets,  in  violation  of  any  contractual
agreements or any requirements of the legal owners or holders to keep such trade secrets in confidence; or (4) instigating, inducing or
assisting others to disclose, use or permit others to use the trade secrets, in violation of any contractual agreements or any requirement of
the legal owners or holders to keep such trade secret in confidence. If a third party knows or should have known of the above-mentioned
illegal conduct but nevertheless obtains, uses or discloses trade secrets of others, the third party may be deemed to have committed a
misappropriation of the others’ trade secrets. The parties whose trade secrets are being misappropriated may petition for administrative
corrections, and regulatory authorities may terminate any illegal activities and impose fines on the infringing parties.

Trademarks

Pursuant to the Trademark Law of the PRC promulgated by the Standing Committee of the NPC on August 23, 1982 and amended
on February 22, 1993, October 27, 2001 and August 30, 2013, respectively, and effective from May 1, 2014, which has been amended on
April 23, 2019 and became effective from November 1, 2019, the period of validity for a registered trademark is ten years, commencing
from the date of registration. The registrant should go through the formalities for renewal within twelve months prior to the expiry date
of  the  trademark  if  continued  use  is  intended.  Where  the  registrant  fails  to  do  so,  a  grace  period  of  six  months  may  be  granted.  The
validity  period  for  each  renewal  of  registration  is  ten  years,  commencing  from  the  day  immediately  after  the  expiry  of  the  preceding
period of validity for the trademark. In the absence of a renewal upon expiry, the registered trademark will be cancelled. Industrial and
commercial  administrative  authorities  have  the  authority  to  investigate  any  behavior  in  infringement  of  the  exclusive  right  under  a
registered trademark in accordance with the law. In case of a suspected criminal offense, the case will be timely referred to a judicial
authority and decided according to the law.

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Domain Names

Domain  names  are  historically  protected  under  the  Measures  on  Administration  of  Domain  Names  for  the  Chinese  Internet
promulgated  by  the  Ministry  of  Industry  and  Information  Technology,  on  November  5,  2004  and  effective  from  December  20,  2004,
which was replaced by the Administrative Measures on the Internet Domain Names issued by the Ministry of Industry and Information
Technology on August 24, 2017 and effective from November 1, 2017, and the Implementing Rules on Registration of Domain Names
issued by China Internet Network Information Center on May 28, 2012, which became effective on May 29, 2012. On June 18, 2019,
China  Internet  Network  Information  Center  issued  the  Implementing  Rules  of  China  Country  Code  Top-level  Domain  Names
Registration, repealing the Implementing Rules on Registration of Domain Names. The Ministry of Industry and Information Technology
is the main regulatory body responsible for the administration of PRC internet domain names. Domain name registrations are handled
through domain name service agencies established under the relevant regulations, and the applicants become domain name holders upon
successful registration.

Product Liability

The Product Quality Law of the PRC promulgated by the Standing Committee of the NPC on February 22, 1993 and amended on
July  8,  2000,  August  27,  2009  and  December  29,  2018,  respectively,  is  the  principal  governing  law  relating  to  the  supervision  and
administration  of  product  quality.  According  to  the  Product  Quality  Law,  manufacturers  should  be  liable  for  the  quality  of  products
produced by them, and sellers should take measures to ensure the quality of the products sold by them. A manufacturer should be liable
for compensating for any bodily injuries or property damages, other than the defective product itself, resulting from the defects in the
product,  unless  the  manufacturer  is  able  to  prove  that:  (1)  the  product  has  never  been  distributed;  (2)  the  defects  causing  injuries  or
damages did not exist at the time when the product was distributed; or (3) the science and technology at the time when the product was
distributed was at a level incapable of detecting the defects. A seller should be liable for compensating for any bodily injuries or property
damages of others caused by the defects in the product if such defects are attributable to the seller. A seller should pay compensation if it
fails to indicate either the manufacturer or the supplier of the defective product. A person who is injured or whose property is damaged
by the defects in the product may claim for compensation from the manufacturer or the seller.

On May 28, 2020, the NPC approved the Civil Code of the People’s Republic of China (the “Civil Code”), which took effect on
January  1,  2021.  According  to  the  Civil  Code,  patients  have  the  right  to  claim  compensation  from  the  drug  marketing  authorization
holder, medical institution or manufacturer for damage caused by drug defects.

Regulation of Commercial Bribery

Pharmaceutical  companies  involved  in  a  criminal  investigation  or  administrative  proceedings  related  to  bribery  are  listed  in  the
Adverse Records of Commercial Briberies by their respective provincial health and family planning administrative department. Pursuant
to the Provisions on the Establishment of Adverse Records of Commercial Briberies in the Medicine Purchase and Sales Industry which
became  effective  on  March  1,  2014,  provincial  health  and  family  planning  administrative  departments  formulate  the  implementing
measures for establishment of Adverse Records of Commercial Briberies. Where a pharmaceutical company or its agent is listed in the
Adverse Records of Commercial Briberies on one occasion, it will be prohibited from participating in the procurement bidding process
or selling its products to public medical institutions located in the local provincial-level region for two years from the publication of the
adverse  records.  The  evaluation  points  of  such  pharmaceutical  company  or  agent  in  respect  of  the  procurement  bidding  process  and
procurement  by  public  medical  institutions  must  be  credited  by  public  medical  institutions  in  the  other  provincial-level  regions  for
two years from the publication of the adverse records. Where a pharmaceutical company or its agent is listed in the Adverse Records of
Commercial Briberies on two or more occasions within five years, it will be prohibited from participating in the procurement bidding
process or selling its products to all public medical institutions in the PRC for two years from the publication of these adverse records.

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Regulations Relating to Employee Stock Incentive Plan

In  February  2012,  the  SAFE  promulgated  the  Notices  on  Issues  Concerning  the  Foreign  Exchange  Administration  for  Domestic
Individuals Participating in Stock Incentive Plans of Overseas Publicly Listed Companies (the “Stock Option Rules”), which replaced the
Application Procedures of Foreign Exchange Administration for Domestic Individuals Participating in Employee Stock Ownership Plans
or Stock Option Plans of Overseas Publicly Listed Companies issued by the SAFE on March 28, 2007. In accordance with the Stock
Option Rules and relevant rules and regulations, PRC citizens or non-PRC citizens residing in China for a continuous period of not less
than  one  year,  who  participate  in  any  stock  incentive  plan  of  an  overseas  publicly  listed  company,  subject  to  a  few  exceptions,  are
required  to  register  with  the  SAFE  through  a  domestic  qualified  agent,  which  could  be  a  PRC  subsidiary  of  such  overseas  listed
company, and complete certain procedures. We and our employees who are PRC citizens or who reside in China for a continuous period
of  not  less  than  one  year  and  who  participate  in  our  stock  incentive  plan  will  be  subject  to  such  regulation.  In  addition,  the  SAT  has
issued  circulars  concerning  employee  share  options  or  restricted  shares.  Under  these  circulars,  employees  working  in  the  PRC  who
exercise share options, or whose restricted shares vest, will be subject to PRC individual income tax (the “IIT”). The PRC subsidiaries of
an overseas listed company have obligations to file documents related to employee share options or restricted shares with relevant tax
authorities and to withhold IIT of those employees related to their share options or restricted shares. If the employees fail to pay, or the
PRC subsidiaries fail to withhold, their IIT according to relevant laws, rules and regulations, the PRC subsidiaries may face sanctions
imposed by the tax authorities or other PRC government authorities.

Regulations Relating to Foreign Exchange and the Dividend Distribution

Foreign Exchange Control

The State Council promulgated the PRC Regulation for the Foreign Exchange on January 29, 1996, which was amended on January 14,
1997 and August 5, 2008, respectively. On June 20, 1996, the People’s Bank of China promulgated the Regulation on the Administration of the
Foreign Exchange Settlement, Sales and Payment, which came into effect on July 1, 1996. Pursuant to the above-mentioned regulations, foreign
exchanges required for distribution of profits and payment of dividends may be purchased from designated foreign exchange banks in the PRC
upon presentation of a board resolution authorizing the distribution of profits or payment of dividends. The Regulation on the Administration of
the  Foreign  Exchange  Settlement,  Sales  and  Payment  removed  the  previous  restrictions  on  convertibility  of  foreign  exchange  in  respect  of
current  account  items,  including  the  distribution  of  dividends,  interest  and  royalty  payments,  trade  and  service-related  foreign  exchange
transactions, while foreign exchange transactions in respect of capital account items, such as direct investment, loan, securities investment and
repatriation of investment, remain subject to the approval of the SAFE.

On November 19, 2012, the SAFE issued the Operating Rules for Foreign Exchange Issues with Regard to Direct Investment under Capital
Account as an appendix to the Circular of the SAFE on Further Improving and Adjusting the Foreign Exchange Policies on Direct Investment,
which  was  issued  on  November  19,  2012  and  amended  on  May  4,  2015.  According  to  the  Circular  of  the  SAFE  on  Further  Improving  and
Adjusting  the  Foreign  Exchange  Policies  on  Direct  Investment,  (i)  the  opening  of  and  payment  into  foreign  exchange  accounts  under  direct
investment accounts are no longer subject to approval by the SAFE; (ii) reinvestment with the legal income of foreign investors in China is no
longer subject to approval by the SAFE; (iii) the procedures for capital verification and confirmation that foreign-funded enterprises need to go
through are simplified; (iv) the purchase and external payment of foreign exchange under direct investment accounts are no longer subject to
approval by the SAFE; (v) domestic transfer of foreign exchange under direct investment accounts is no longer subject to approval by the SAFE;
and (vi) the administration over the conversion of foreign exchange capital of foreign-funded enterprises is improved. On February 13, 2015, the
SAFE issued the Circular on Further Simplifying and Improving Foreign Exchange Administration Policies in Respect of Direct Investment,
which came into effect on June 1, 2015, providing that the banks, instead of the SAFE, can directly handle the foreign exchange registration and
approval under foreign direct investment, while the SAFE and its branches indirectly supervise the foreign exchange registration and approval
under foreign direct investment through the banks.

On  May  10,  2013,  the  SAFE  promulgated  the  Provisions  on  the  Administration  of  Foreign  Exchange  in  Foreign  Direct  Investments  by
Foreign Investors, which became effective on May 13, 2013, and relevant supporting documents that regulate and clarify the administration over
foreign exchange administration in foreign direct investments.

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On March 30, 2015, the SAFE released the Circular on the Reform of the Management Method for the Settlement of Foreign Exchange
Capital of Foreign-invested Enterprises, which came into effect on June 1, 2015 and superseded the Notice on the Relevant Operating Issues
Concerning  the  Improvement  of  the  Administration  of  Payment  and  Settlement  of  Foreign  Currency  Capital  of  Foreign-funded  Enterprises
issued  by  the  SAFE  on  August  29,  2008.  The  Circular  on  the  Reform  of  the  Management  Method  for  the  Settlement  of  Foreign  Exchange
Capital of Foreign-invested Enterprises has made certain adjustments to some regulatory requirements on the settlement of foreign exchange
capital  of  foreign-invested  enterprises,  and  some  foreign  exchange  restrictions  provided  in  the  Notice  on  the  Relevant  Operating  Issues
Concerning the Improvement of the Administration of Payment and Settlement of Foreign Currency Capital of Foreign-funded Enterprises. On
June 9, 2016, the SAFE issued the Circular on the Reform and Standardization of the Management Policy of the Settlement of Capital Projects.
Under the Circular on the Reform and Standardization of the Management Policy of the Settlement of Capital Projects and the Circular on the
Reform of the Management Method for the Settlement of Foreign Exchange Capital of Foreign-invested Enterprises, the settlement of foreign
exchange by foreign-invested enterprises should be governed by the policy of foreign exchange settlement on a discretionary basis. However,
the aforementioned circulars also reiterate that the settlement of foreign exchange should only be used for its own operation purposes within the
business  scope  of  the  foreign-invested  enterprises  and  following  the  principles  of  authenticity.  Considering  that  these  circulars  are  relatively
new, it is unclear how they will be implemented, and there exist great uncertainties with respect to their interpretation and implementation by the
authorities.

The  SAFE  promulgated  the  Circular  on  Relevant  Issues  Concerning  Foreign  Exchange  Control  on  Domestic  Residents’  Offshore
Investment and Financing and Roundtrip Investment through Special Purpose Vehicles on July 4, 2014, which requires PRC residents to register
with local branches of the SAFE in connection with their direct establishment or indirect control of an offshore entity for the purpose of overseas
investment and financing, with such PRC residents’ legally owned assets or equity interests in domestic enterprises or offshore assets or interests
as  a  “special  purpose  vehicle”  as  defined  therein.  The  aforesaid  circular  further  requires  amendment  to  the  registration  in  the  event  of  any
significant changes with respect to the special purpose vehicle. Failure to comply with the SAFE registration requirements under the Circular on
Relevant Issues Concerning Foreign Exchange Control on Domestic Residents’ Offshore Investment and Financing and Roundtrip Investment
through Special Purpose Vehicles could result in liabilities under PRC law for evasion of foreign exchange controls. The Circular on Further
Simplifying and Improving Foreign Exchange Administration Policies in Respect of Direct Investment, provides that local banks, instead of the
SAFE,  can  directly  handle  the  initial  foreign  exchange  registration  and  amendment  registration  under  the  Circular  on  Relevant  Issues
Concerning Foreign Exchange Control on Domestic Residents’ Offshore Investment and Financing and Roundtrip Investment through Special
Purpose Vehicles. Any products manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation by
the FDA

On April 10, 2020, SAFE promulgated the Circular on Optimizing Administration of Foreign Exchange to Support the Development of
Foreign-related Business, which allows eligible enterprises to make domestic payments using their capital funds, foreign credits and the income
under capital accounts of overseas listing, without providing evidentiary materials concerning authenticity of such capital for banks in advance,
provided that their capital use should be authentic and in line with provisions, and conform to the prevailing administrative regulations on the
use of income under capital accounts. The administering bank should perform ex-post sampling in accordance with the relevant requirements.

Dividend Distribution

Pursuant to the PRC Company Law and Foreign Investment Law of the PRC, foreign-invested enterprises in the PRC may pay dividends
only  out  of  their  accumulated  profits  as  determined  in  accordance  with  PRC  accounting  standards  and  regulations.  In  addition,  a  foreign-
invested enterprise is required to set aside at least 10% of its accumulated profits each year to fund certain reserve funds, until the accumulative
amount of such fund reaches 50% of its registered capital.

On January 26, 2017, the SAFE issued the Notice on Improving the Check of Authenticity and Compliance to Further Promote Foreign
Exchange  Control,  which  stipulates  several  capital  control  measures  with  respect  to  outbound  remittance  of  profits  from  domestic  entities  to
offshore entities, including the following: (i) under the principle of genuine transaction, banks should check board resolutions regarding profit
distribution, the original version of tax filing records and audited financial statements; and (ii) domestic entities should hold income to account
for previous years’ losses before remitting the profits. Moreover, domestic entities should provide detailed explanations of the sources of capital
and the utilization arrangements and board resolutions, contracts and other proof when completing the registration procedures in connection with
an outbound investment.

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Regulations Relating to Labor

Labor Law and Labor Contract Law

Pursuant to the PRC Labor Law promulgated by the Standing Committee of the NPC on July 5, 1994 and effective from January 1, 1995
and amended on August 27, 2009 and December 29, 2018, respectively, the PRC Labor Contract Law promulgated by the Standing Committee
of the NPC on June 29, 2007 and effective from January 1, 2008 and amended on December 28, 2012 and effective from July 1, 2013, and the
Implementing  Regulations  of  the  Employment  Contracts  Law  of  the  PRC  promulgated  by  the  State  Council  on  September  18,  2008,  labor
contracts in written form should be executed to establish labor relationships between employers and employees. Wages cannot be lower than the
local  minimum  wage.  The  employer  must  establish  a  system  for  labor  safety  and  sanitation,  strictly  abide  by  the  state  rules  and  standards,
provide  education  regarding  labor  safety  and  sanitation  to  its  employees,  provide  employees  with  labor  safety  and  sanitary  conditions  and
necessary  protection  materials  in  compliance  with  the  state  rules  and  standards,  and  carry  out  regular  health  examinations  for  employees
engaged in work involving occupational hazards.

Social Insurance and Housing Provident Funds

Under applicable PRC laws, including the Social Insurance Law of the PRC which became effective on July 1, 2011 and was amended on
December  19,  2018,  the  Interim  Regulations  on  the  Collection  and  Payment  of  Social  Security  Funds  promulgated  by  the  State  Council  on
January 22, 1999 and amended on March 24, 2019, and the Regulations on the Administration of Housing Provident Funds promulgated by the
State Council on April 3, 1999 and amended on March 24, 2002 and March 24, 2019, respectively, employers are required to contribute, on
behalf of their employees, to a number of social security funds, including funds for basic pension insurance, unemployment insurance, basic
medical  insurance,  occupational  injury  insurance,  maternity  insurance  and  housing  provident  funds.  These  payments  are  made  to  local
administrative authorities, and any employer who fails to contribute may be fined and ordered to pay the deficit amount within a stipulated time
limit.

Regulations Relating to Enterprise Income Tax

Pursuant  to  the  Enterprise  Income  Tax  Law  of  the  PRC  effective  as  of  January  1,  2008  and  as  amended  on  February  24,  2017  and
December  29,  2018,  respectively,  the  income  tax  rate  for  both  domestic  and  foreign-invested  enterprises  is  25%  with  certain  exceptions.  To
clarify certain provisions in the Enterprise Income Tax Law, the State Council promulgated the Implementation Rules of the Enterprise Income
Tax Law on December 6, 2007, which was amended and became effective on April 23, 2019. Under the Enterprise Income Tax Law and the
Implementation Rules of the Enterprise Income Tax Law, enterprises are classified as either “resident enterprises” or “non-resident enterprises.”
Besides  enterprises  established  within  the  PRC,  enterprises  established  outside  of  China  whose  “de  facto  management  bodies”  are  located  in
China are considered “resident enterprises” and subject to the uniform 25% enterprise income tax rate for their global income. In addition, the
Enterprise  Income  Tax  Law  provides  that  a  non-resident  enterprise  refers  to  an  entity  established  under  foreign  law  whose  “de  facto
management bodies” are not within the PRC, but has an establishment or place of business in the PRC, or does not have an establishment or
place of business in the PRC but has income sourced within the PRC.

The Implementation Rules of the Enterprise Income Tax Law provide that since January 1, 2008, an income tax rate of 10% should
normally  be  applicable  to  dividends  declared  to  non-PRC  resident  enterprise  investors  that  do  not  have  an  establishment  or  place  of
business  in  the  PRC,  or  have  such  establishment  or  place  of  business  but  the  relevant  income  is  not  effectively  connected  with  the
establishment  or  place  of  business,  to  the  extent  such  dividends  are  derived  from  sources  within  the  PRC.  The  income  tax  on  the
dividends may be reduced pursuant to a tax treaty between China and the jurisdictions in which the non-PRC shareholders reside.

Other PRC National- and Provincial-Level Laws and Regulations

We  are  subject  to  changing  regulations  under  many  other  laws  and  regulations  administered  by  governmental  authorities  at  the
national, provincial and municipal levels, some of which are or may become applicable to our business. For example, regulations control
the confidentiality of patients’ medical information and the circumstances under which patient medical information may be released for
inclusion in our databases, or released by us to third parties. These laws and regulations governing both the disclosure and the use of
confidential patient medical information may become more restrictive in the future.

We  also  comply  with  numerous  additional  national  and  provincial  laws  relating  to  matters  such  as  safe  working  conditions,
manufacturing  practices,  environmental  protection  and  fire  hazard  control.  We  believe  that  we  are  currently  in  compliance  with  these
laws and regulations; however, we may be required to incur significant costs to comply with these laws and regulations in the future.
Unanticipated  changes  in  existing  regulatory  requirements  or  adoption  of  new  requirements  could  therefore  have  a  material  adverse
effect on our business, results of operations and financial condition.

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U.S. Regulation

Government Regulation and Product Approval in the United States

The  FDA  and  other  regulatory  authorities  in  the  United  States  at  federal,  state  and  local  levels,  as  well  as  in  foreign  countries,
extensively  regulate,  among  other  things,  the  research,  development,  testing,  manufacture,  quality  control,  import,  export,  safety,
effectiveness,  labeling,  packaging,  storage,  distribution,  recordkeeping,  approval,  advertising,  promotion,  marketing,  post-approval
monitoring and post-approval reporting of biological products. Along with third-party contractors, we will be required to navigate the
various pre-clinical, clinical and commercial approval requirements of the governing regulatory agencies of the countries in which we
wish  to  conduct  studies  or  seek  approval  or  licensure  of  our  drug  candidates.  The  processes  for  obtaining  regulatory  approvals  in  the
United States and in foreign jurisdictions, along with subsequent compliance with applicable laws and regulations and other regulatory
authorities, require the expenditure of substantial time and financial resources.

Government  policies  may  change  and  additional  government  regulations  may  be  enacted  that  could  prevent  or  delay  further
development  or  regulatory  approval  of  any  of  our  drug  candidates,  or  anticipated  manufacturing  processes,  disease  indications,  or
labeling.  We  cannot  predict  the  likelihood,  nature  or  extent  of  government  regulation  that  might  arise  from  future  legislative  or
administrative action.

Review and Approval for Licensing Biologics in the United States

In  the  United  States,  the  FDA  regulates  our  current  drug  candidates  as  biological  products,  or  biologics,  under  the  Federal  Food,
Drug,  and  Cosmetic  Act  (the  “FDCA”),  the  Public  Health  Service  Act  and  associated  implementing  regulations.  Biologics,  like  other
drugs, are used for the treatment, prevention or cure of disease in humans. In contrast to chemically synthesized small molecular weight
drugs,  which  have  a  well-defined  structure  and  can  be  thoroughly  characterized,  biologics  are  generally  derived  from  living  material
(human,  animal,  or  microorganism)  and  are  complex  in  structure,  and  thus  are  usually  not  fully  characterized.  Biologics  include
immunomedicines for cancer and other diseases.

Biologics are also subject to other federal, state and local statutes and regulations. The failure to comply with applicable statutory
and  regulatory  requirements  at  any  time  during  the  product  development  process,  approval  process  or  after  approval  may  subject  a
sponsor  or  applicant  to  administrative  or  judicial  enforcement  actions.  These  actions  could  include  the  suspension  or  termination  of
clinical trials by the FDA, the FDA’s refusal to approve pending applications or supplemental applications, withdrawal of an approval,
“Warning Letters” (official messages from the FDA to a manufacturer or other organization that it has violated some rule in a federally
regulated activity) or “Untitled Letters” (initial correspondences from the FDA with a regulated industry that cite violations that do not
meet  the  threshold  of  regulatory  significance  for  a  Warning  Letter  and  request  correction  of  the  violation),  product  recalls,  product
seizures, total or partial suspension of production or distribution, import detention, injunctions, fines, refusals of government contracts,
restitution, disgorgement of profits, or civil or criminal investigations and penalties brought by the FDA, the Department of Justice (the
“DOJ”), or other governmental entities.

An applicant seeking approval to market and distribute a biologic in the United States typically must undertake the following:

● completion of non-clinical laboratory tests and animal studies performed in accordance with the FDA’s good laboratory practice

(the “GLP”), regulations;

● submission to the FDA of an application for an Investigational New Drug (“IND”), which must become effective before clinical

trials may begin and must be updated annually or when significant changes are made;

● manufacture, labeling and distribution of an investigational drug in compliance with current good manufacturing practice (the

“cGMP”);

● approval by an independent institutional review board (the “IRB”), or ethics committee at each clinical site before each clinical

trial may be initiated;

● performance of adequate and well-controlled human clinical trials in accordance with the FDA’s current Good Clinical Practices
requirements (the “cGCP”), to establish the safety, purity and potency of the proposed biological drug candidate for its intended
purpose;

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● preparation of and submission to the FDA of a biologics license application (“BLA”), after completion of all pivotal clinical

trials requesting marketing approval for one or more proposed indications;

● satisfactory completion of an FDA Advisory Committee review, where appropriate or if applicable, as may be requested by the

FDA to assist with its review;

● satisfactory  completion  of  one  or  more  FDA  inspections  of  the  manufacturing  facility  or  facilities  at  which  the  proposed
product, or components thereof, are produced to assess compliance with cGMP and data integrity requirements to assure that
the facilities, methods and controls are adequate to preserve the biologic’s identity, safety, quality, purity and potency;

● satisfactory completion of FDA audits of selected clinical investigation sites to assure compliance with cGCP requirements and

the integrity of the clinical data;

● payment of user fees under the Prescription Drug User Fee Act (the “PDLTFA”), for the relevant year;

● obtaining  FDA  review  and  approval  of  the  BLA  to  permit  commercial  marketing  of  the  licensed  biologic  for  particular

indications for use in the United States; and

● compliance  with  any  post-approval  requirements,  including  the  potential  requirement  to  implement  a  Risk  Evaluation  and

Mitigation Strategy (the “REMS”), and the potential requirement to conduct post-approval studies.

The testing and approval process requires substantial time, effort and financial resources and we cannot be certain that any approvals

for our drug candidates will be granted on a timely basis, if at all.

From time to time, legislation is drafted, introduced and passed in the Congress of the United States that could significantly change
the statutory provisions governing the testing, approval, manufacturing and marketing of products regulated by the FDA. In addition to
new legislation, FDA regulations and policies are often revised or interpreted by the agency in ways that may significantly affect our
business  and  our  drug  candidates.  It  is  impossible  to  predict  whether  further  legislative  changes  will  be  enacted  or  whether  FDA
regulations, guidance, policies or interpretations will be changed or what the effect of such changes, if any, may be.

Preclinical and Clinical Development in the United States

Before  a  BLA  applicant  can  begin  testing  the  potential  asset  in  human  subjects,  the  applicant  must  first  conduct  pre-clinical
studies. Pre-clinical studies include laboratory evaluations of product chemistry, toxicity and formulation, as well as in vitro and animal
studies to assess the potential safety and activity of the biologic for initial testing in humans and to establish a rationale for therapeutic
use. Pre-clinical studies are subject to federal regulations and requirements, including GLP regulations. The results of an applicant’s pre-
clinical studies are submitted to the FDA as part of an IND.

An IND is a request for authorization from the FDA to administer an investigational new drug product to humans. An IND is an
exemption from the FDCA that allows an unapproved drug to be shipped in interstate commerce for use in an investigational clinical
trial. Such authorization must be secured prior to interstate shipment. In support of a request for an IND, applicants must submit a range
of  information,  including  pre-clinical  data,  manufacturing  information  and  a  detailed  protocol  for  each  clinical  trial.  Any  subsequent
protocol amendments must be submitted to the FDA as part of the IND.

Human clinical trials may not begin until an IND is effective. The IND automatically becomes effective 30 days after receipt by the
FDA, unless the FDA raises safety concerns or questions about the proposed clinical trial within the 30-day time period. In such a case,
the IND may be placed on clinical hold and the IND sponsor and the FDA must resolve any outstanding concerns or questions before the
clinical trial can begin. Submission of an IND therefore may or may not result in FDA authorization to begin a clinical trial.

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The FDA may also place a clinical hold or partial clinical hold on such trial following commencement of a clinical trial under an
IND. A clinical hold is an order issued by the FDA to the sponsor to delay a proposed clinical investigation or to suspend an ongoing
investigation. A partial clinical hold is a delay or suspension of only part of the clinical work requested under the IND. For example, a
specific  protocol  or  part  of  a  protocol  is  not  allowed  to  proceed,  while  other  protocols  may  do  so.  No  more  than  30  days  after  the
imposition of a clinical hold or partial clinical hold, the FDA will provide the sponsor with a written explanation of the basis for the hold.
Following issuance of a clinical hold or partial clinical hold, an investigation may only resume after the FDA has notified the sponsor
that  the  investigation  may  proceed.  The  FDA  will  base  that  determination  on  information  provided  by  the  sponsor  correcting  the
deficiencies previously cited or otherwise satisfying the FDA that the investigation can proceed.

Clinical  trials  involve  the  administration  of  the  investigational  product  to  human  subjects  under  the  supervision  of  qualified
investigators  in  accordance  with  cGCP  regulations,  which  include  the  requirement  that  all  research  subjects  provide  their  informed
consent  for  their  participation  in  any  clinical  study.  Clinical  trials  are  conducted  under  protocols  detailing,  among  other  things,  the
objectives  of  the  study,  the  parameters  to  be  used  in  monitoring  safety  and  the  effectiveness  criteria  to  be  evaluated.  A  separate
submission  to  the  existing  IND  must  be  made  for  each  successive  clinical  trial  conducted  during  product  development  and  for  any
subsequent protocol amendments.

A  sponsor  may  choose,  but  is  not  required,  to  conduct  a  foreign  clinical  study  under  an  IND.  When  a  foreign  clinical  study  is
conducted under an IND, all FDA IND requirements must be met unless waived. When the foreign clinical study is not conducted under
an  IND,  the  sponsor  must  ensure  that  the  study  complies  with  cGCP  regulations  in  order  to  use  the  study  as  support  for  an  IND  or
application  for  marketing  approval,  including  review  and  approval  by  an  independent  ethics  committee  and  informed  consent  from
subjects.

Furthermore,  an  independent  IRB  for  each  site  proposing  to  conduct  the  clinical  trial  must  review  and  approve  the  plan  for  any
clinical  trial  and  its  informed  consent  form  before  the  clinical  trial  begins  at  that  site,  and  must  monitor  the  study  until  completed.
Regulatory authorities, the IRB or the sponsor may suspend a clinical trial at any time on various grounds, including a finding that the
subjects are being exposed to an unacceptable health risk or that the trial is unlikely to meet its stated objectives.

Some trials also include oversight by an independent group of qualified experts organized by the clinical trial sponsor, known as a
data safety monitoring board (the “DSMB”). DSMBs provide authorization for whether or not a trial may move forward at designated
check  points  based  on  access  to  certain  data  from  the  trial  and  may  halt  the  clinical  trial  if  a  DSMB  determines  that  there  is  an
unacceptable safety risk for subjects or based on other grounds, such as no demonstration of efficacy. Other grounds for suspension or
termination may be made based on evolving business objectives and/or competitive climate. There are also requirements governing the
reporting of ongoing clinical trials and clinical trial results to public registries.

Clinical Trials

For  purposes  of  BLA  approval,  clinical  trials  are  typically  conducted  in  the  following  sequential  phases  that  may  overlap  or  be

combined:

● Phase 1: The investigational product is initially introduced into a small number of healthy human subjects or patients with the
target disease or condition. These trials are designed to test the safety, dosage tolerance, absorption, metabolism and distribution
of the investigational product in humans and the side effects associated with increasing doses. These trials may also yield early
evidence of effectiveness. In the case of some products for severe or life-threatening diseases, especially when the product is
suspected or known to be unavoidably toxic, the initial human testing may be conducted in patients.

● Phase  2:  The  investigational  product  is  administered  to  a  limited  patient  population  with  a  specified  disease  or  condition  to
evaluate the preliminary efficacy, optimal dosages and dosing schedule and to identify possible adverse side effects and safety
risks.  Multiple  Phase  2  clinical  trials  may  be  conducted  to  obtain  information  prior  to  beginning  larger  and  more  expensive
Phase 3 clinical trials.

● Phase  3:  The  investigational  product  is  administered  to  an  expanded  patient  population  generally  at  multiple  geographically
dispersed  clinical  trial  sites  to  further  evaluate  dosage,  to  provide  statistically  significant  evidence  of  clinical  efficacy  and  to
further test for safety. These clinical trials are intended to generate sufficient data to statistically evaluate the efficacy and safety
of the product for approval, to establish the overall risk/benefit ratio of the investigational product and to provide an adequate
basis for product approval by the FDA.

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In some cases, the FDA may require, or companies may voluntarily pursue, additional clinical trials after a product is approved to
gain  more  information  about  the  product,  referred  to  as  Phase  4  trials.  Such  post-approval  trials,  when  applicable,  are  conducted
following initial approval, typically to develop additional data and information relating to the biological characteristics of the product and
treatment of patients in the intended therapeutic indication.

Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA and more frequently if
serious adverse events occur. In addition, IND safety reports must be submitted to the FDA for any of the following: suspected serious
and unexpected adverse reactions; findings from epidemiological studies, pooled analysis of multiple studies, animal or in vitro testing,
or other clinical studies, whether or not conducted under an IND, and whether or not conducted by the sponsor, that suggest a significant
risk in humans exposed to the drug; and any clinically important increase in the rate of a serious suspected adverse reaction over such
rate listed in the protocol or investigator brochure, which is a comprehensive document summarizing the body of information about an
investigational product obtained during clinical and non-clinical trials.

Each  of  Phase  1,  Phase  2  and  Phase  3  clinical  trials  may  not  be  completed  successfully  within  any  specified  period,  or  at  all.
Furthermore, the FDA or the sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that
the research patients are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical
trial at its institution, or an institution it represents, if the clinical trial is not being conducted in accordance with the IRB’s requirements
or if the drug has been associated with unexpected serious harm to patients. The FDA will typically inspect one or more clinical sites to
assure compliance with cGCP and the integrity of the clinical data submitted.

During clinical development, the sponsor often refines the indication and endpoints on which the BLA will be based. For endpoints
based  on  patient-reported  outcomes  (the  “PROs”),  and  observer-reported  outcomes  (the  “OROs”),  the  process  typically  is  an  iterative
one.  The  FDA  has  issued  guidance  on  the  framework  it  uses  to  evaluate  PRO  instruments.  Although  the  agency  may  offer  advice  on
optimizing PRO and ORO instruments during the clinical development process, the FDA usually reserves final judgment until it reviews
the BLA.

Concurrent with clinical trials, companies often complete additional animal studies, and develop additional information about the
chemistry  and  physical  characteristics  of  the  drug  and  finalize  a  process  for  manufacturing  the  product  in  commercial  quantities  in
accordance with cGMP requirements. The manufacturing process must be capable of consistently producing quality batches of the drug
candidate and, among other things, must develop methods for testing the identity, strength, quality, purity and potency of the final drug.
Additionally,  appropriate  packaging  must  be  selected  and  tested  and  stability  studies  must  be  conducted  to  demonstrate  that  the  drug
candidate does not undergo unacceptable deterioration over its shelf life.

BLA Submission and Review

Assuming  successful  completion  of  all  required  clinical  testing  in  accordance  with  all  applicable  regulatory  requirements,  an
applicant may submit a BLA requesting licensing to market the biologic for one or more indications in the United States. The BLA must
include  the  results  of  product  development,  non-clinical  studies  and  clinical  trials;  detailed  information  on  the  product’s  chemistry,
manufacture and controls; and proposed labeling. Under the Prescription Drug User Fee Amendments, a BLA submission is subject to an
application user fee, unless a waiver or exemption applies.

The FDA will initially review the BLA for completeness before accepting it for filing. Under the FDA’s procedures, the agency has
60 days from its receipt of a BLA to determine whether the application will be accepted for filing and substantive review. If the agency
determines  that  the  application  does  not  meet  this  initial  threshold  standard,  the  FDA  may  refuse  to  file  the  application  and  request
additional information, in which case the application must be resubmitted with the requested information and review of the application
delayed.

With  certain  exceptions,  BLAs  must  include  a  pediatric  assessment,  generally  based  on  clinical  trial  data,  of  the  safety  and
effectiveness of the biologic in relevant pediatric populations. Under certain circumstances, the FDA may waive or defer the requirement
for a pediatric assessment, either at the sponsor’s request or by the agency’s initiative.

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After the BLA is accepted for filing, the FDA reviews the BLA to determine, among other things, whether a product is safe, pure
and potent and if the facility in which it is manufactured, processed, packed or held meets standards designed to assure the product’s
continued identity, strength, quality, safety, purity and potency. The FDA may convene an advisory committee to provide clinical insight
on application review questions. Before approving a BLA, the FDA will typically inspect the facility or facilities where the product is
manufactured. The FDA will not approve an application unless it determines that the manufacturing processes and facilities comply with
cGMP and are adequate to assure consistent production of the product within required specifications. In addition, the FDA expects that
all data be reliable and accurate, and requires sponsors to implement meaningful and effective strategies to manage data integrity risks.
Data  integrity  is  an  important  component  of  the  sponsor’s  responsibility  to  ensure  the  safety,  efficacy  and  quality  of  its  product  or
products.

The FDA will typically inspect one or more clinical sites to assure compliance with cGCP regulations before approving a BLA. If
the  FDA  determines  that  the  application,  manufacturing  process  or  manufacturing  facilities  are  not  acceptable,  it  will  outline  the
deficiencies in the submission and often will request additional testing or information. Notwithstanding the submission of any requested
additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval.

FDA performance goals generally provide for action on a BLA within ten months of filing, which (as discussed above) typically
occurs  within  60  days  of  submission,  but  that  deadline  is  extended  in  certain  circumstances.  Furthermore,  the  review  process  is  often
significantly extended by FDA requests for additional information or clarification.

The FDA may refer applications for novel products or products that present difficult questions of safety or efficacy to an advisory
committee. Typically, an advisory committee consists of a panel that includes clinicians and other experts who will review, evaluate and
provide a recommendation as to whether the application should be approved and, if so, under what conditions. The FDA is not bound by
the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions and usually has
followed such recommendations.

After  the  FDA  evaluates  a  BLA  and  conducts  inspections  of  manufacturing  facilities  where  the  investigational  product  and/or  its
components  will  be  produced,  the  FDA  may  issue  an  approval  letter  or  a  Complete  Response  Letter  (the  “CRL”).  An  approval  letter
authorizes commercial marketing of the biologic with specific prescribing information for specific indications. A CRL will describe all
of the deficiencies that the FDA has identified in the BLA, except that where the FDA determines that the data supporting the application
are inadequate to support approval, the FDA may issue the CRL without first conducting required inspections, testing submitted product
lots and/or reviewing proposed labeling. If and when the deficiencies have been addressed to the FDA’s satisfaction in a resubmission of
the BLA, the FDA will issue an approval letter. In issuing the CRL, the FDA may recommend actions that the applicant might take to
place  the  BLA  in  condition  for  approval,  including  requests  for  additional  data,  information  or  clarification.  The  FDA  may  delay  or
refuse  approval  of  a  BLA  if  applicable  regulatory  criteria  are  not  satisfied,  and  may  require  additional  testing  or  information  and/or
require post-marketing studies and clinical trials. Even with submission of this additional information, the FDA ultimately may decide
that the application does not satisfy the regulatory criteria for approval.

During the approval process, the FDA will determine whether a REMS is necessary to assure the safe use of the biologic. A REMS is a
safety strategy to manage a known or potential serious risk associated with a product and to enable patients to have continued access to such
medicines by managing their safe use, and could include medication guides, physician communication plans or elements to assure safe use, such
as restricted distribution methods, patient registries and other risk minimization tools. If the FDA concludes that a REMS is needed, the BLA
sponsor must submit a proposed REMS and the FDA will not approve the BLA without a REMS that the agency has determined is acceptable.

In  addition,  under  the  Pediatric  Research  Equity  Act  of  2003  (the  “PREA”),  as  amended  and  reauthorized,  certain  applications  or
supplements  must  contain  data  that  are  adequate  to  assess  the  safety  and  effectiveness  of  the  drug  for  the  claimed  indications  in  all  relevant
pediatric subpopulations, and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective.
The  FDA  may,  on  its  own  initiative  or  at  the  request  of  the  applicant,  grant  deferrals  for  submission  of  some  or  all  pediatric  data  until  after
approval of the product for use in adults, or full or partial waivers from the pediatric data requirements.

If the FDA approves a product, it may limit the approved indications for use for the product, or require that contraindications, warnings or
precautions  be  included  in  the  product  labeling.  The  FDA  may  also  require  that  post-approval  studies,  including  Phase  4  clinical  trials,  be
conducted to further assess the drug’s safety after approval. The FDA may prevent or limit further marketing of a product based on the results of
post-marketing studies or surveillance programs.

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The FDA may also require testing and surveillance programs to monitor the product after commercialization. For biologics, such testing
may  include  official  lot  release,  which  requires  the  manufacturer  to  perform  certain  tests  on  each  lot  of  the  product  before  it  is  released  for
distribution. The manufacturer then typically must submit samples of each lot of product to the FDA, together with a release protocol showing a
summary  of  the  history  of  manufacture  of  the  lot  and  the  results  of  all  of  the  manufacturer’s  tests  performed  on  the  lot.  The  FDA  may  also
perform certain confirmatory tests on lots of some products itself, before releasing the lots for distribution by the manufacturer.

After  approval,  many  types  of  changes  to  the  approved  product,  such  as  adding  new  indications,  manufacturing  changes  and  additional
labeling claims, are often subject to further testing requirements and FDA review and approval, depending on the nature of the post-approval
change. The FDA may withdraw the product approval if compliance with pre- and post-marketing requirements is not maintained or if problems
occur after the product reaches the marketplace.

Post-Approval Requirements

Any  products  manufactured  or  distributed  pursuant  to  FDA  approvals  are  subject  to  pervasive  and  continuing  regulation  by  the  FDA,
including,  among  other  things,  requirements  relating  to  recordkeeping,  periodic  reporting,  reporting  of  certain  deviations  and  adverse
experiences,  product  sampling  and  distribution  and  advertising  and  promotion  of  the  product.  After  approval,  most  changes  to  the  approved
product, such as adding new indications or other labeling claims, are subject to FDA review and approval. There also are continuing user fee
requirements, under which the FDA assesses an annual program fee for each product identified in an approved BLA. Biologic manufacturers
and their third-party contractors are required to register their establishments with the FDA and certain state agencies. These establishments are
subject to routine and periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMP and data integrity
requirements, which impose certain procedural and documentation requirements to assure quality of manufacturing and product. The FDA has
increasingly  observed  cGMP  violations  involving  data  integrity  during  site  inspections  and  investigating  compliance  with  data  integrity
requirements is a significant focus of its oversight. Requirements with respect to data integrity include, among other things, controls to ensure
data  are  complete  and  secure;  activities  documented  at  the  time  of  performance;  audit  trail  functionality;  authorized  access  and  limitations;
validated computer systems; and review of records for accuracy, completeness and compliance with established standards.

Post-approval changes to the manufacturing process are strictly regulated, and, depending on the significance of the change, may require
FDA approval before being implemented. FDA regulations also require investigation and correction of any deviations from cGMP and impose
reporting  requirements  upon  us  and  any  third-party  manufacturers  that  we  may  decide  to  use.  Accordingly,  manufacturers  must  continue  to
expend  time,  money  and  effort  in  the  area  of  production  and  quality  control  to  maintain  compliance  with  cGMP,  data  integrity,
pharmacovigilance (i.e., post-marketing safety reporting obligations) and other aspects of regulatory compliance.

The  FDA  may  withdraw  a  product  approval  if  compliance  with  regulatory  requirements  and  standards  is  not  maintained  or  if  problems
occur  after  the  product  reaches  the  market.  Later  discovery  of  previously  unknown  problems  with  a  product,  including  adverse  events  of
unanticipated severity or frequency, or with manufacturing processes, or failure to comply with regulatory requirements, may result in revisions
to  the  approved  labeling  to  add  new  safety  information;  imposition  of  post-approval  studies  or  clinical  trials  to  assess  new  safety  risks;  or
imposition of distribution or other restrictions under a REMS. Other potential consequences include:

● restrictions on the marketing or manufacturing of a product, complete withdrawal of the product from the market or product

recalls;

● fines, Warning Letters, Untitled Letters or holds on post-approval clinical studies;

● refusal of the FDA to approve pending applications or supplements to approved applications, or suspension or revocation of

existing product approvals;

● product  seizure  or  detention,  or  refusal  of  the  FDA  to  permit  the  import  or  export  of  products  that  it  believes  present  safety

problems by issuing an Import Alert;

● permanent injunctions and consent decrees, including the imposition of civil or criminal penalties; or

● voluntary product recall.

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The FDA strictly regulates the marketing, labeling, advertising and promotion of prescription drug products placed on the market.
A  company  can  make  only  those  claims  relating  to  safety  and  efficacy,  purity  and  potency  that  are  approved  by  the  FDA  and  in
accordance with the provisions of the approved label. The FDA’s regulation includes, among other things, standards and regulations for
direct-to-consumer advertising, communications regarding unapproved uses, industry-sponsored scientific and educational activities and
promotional  activities  involving  the  Internet  and  social  media.  Promotional  claims  relating  to  a  product’s  safety  or  effectiveness  are
prohibited before the drug is approved. After approval, a product generally may not be promoted for uses that are not approved by the
FDA,  as  reflected  in  the  product’s  prescribing  information.  In  the  United  States,  healthcare  professionals  are  generally  permitted  to
prescribe  drugs  for  such  uses  not  described  in  the  drug’s  labeling,  known  as  off-label  uses,  because  the  FDA  does  not  regulate  the
practice  of  medicine.  However,  FDA  regulations  impose  rigorous  restrictions  on  manufacturers’  communications,  prohibiting  the
promotion  of  off-label  uses.  It  may  be  permissible,  under  very  specific,  narrow  conditions,  for  a  manufacturer  to  engage  in  non-
promotional,  non-misleading  communication  regarding  off-label  information,  such  as  distributing  scientific  or  medical  journal
information.

If a company is found to have promoted off-label uses, it may become subject to adverse public relations and administrative and
judicial enforcement by the FDA, the DOJ or the Office of the Inspector General of the Department of Health and Human Services, as
well as other federal and state authorities. This could subject a company to a range of penalties that could have a significant commercial
impact, including civil and criminal fines and agreements that materially restrict the manner in which a company promotes or distributes
products. The federal government has levied large civil and criminal fines against companies for alleged improper promotion, and has
also  requested  that  companies  enter  into  consent  decrees  and  permanent  injunctions  under  which  specified  promotional  conduct  is
changed or curtailed.

The  distribution  of  prescription  drugs  and  biologics  are  subject  to  the  Drug  Supply  Chain  Security  Act  (the  “DSCSA”),  which
requires  manufacturers  and  other  stakeholders  to  comply  with  product  identification,  tracing,  verification,  detection  and  response,
notification  and  licensing  requirements.  In  addition,  the  Prescription  Drug  Marketing  Act  (the  “PDMA”),  and  its  implementing
regulations, and state laws limit the distribution of prescription pharmaceutical product samples, and the DSCSA imposes requirements
to  ensure  accountability  in  distribution  and  to  identify  and  remove  prescription  drug  and  biological  products  that  may  be  counterfeit,
stolen, contaminated, or otherwise harmful from the market.

Patent Term Restoration and Marketing Exclusivity

After approval, owners of relevant drug or biological product patents may apply for up to a five-year patent extension to restore a
portion of patent term lost during product development and FDA review of a BLA if approval of the application is the first permitted
commercial  marketing  or  use  of  a  biologic  containing  the  active  ingredient  under  the  Drug  Price  Competition  and  Patent  Term
Restoration  Act  of  1984,  referred  to  as  the  Hatch-Waxman  Act.  The  allowable  patent  term  extension  is  calculated  as  one-half  of  the
product’s testing phase, which is the time between IND and BLA submission, and all of the review phase, which is the time between
BLA submission and approval, up to a maximum of five years. The time can be shortened if the FDA determines that the applicant did
not pursue approval with due diligence. The total patent term after the extension may not exceed more than 14 years from the date of
FDA approval of the product. Only one patent claiming each approved product is eligible for restoration and the patent holder must apply
for restoration within 60 days of approval. The United States Patent and Trademark Office (the “USPTO”), in consultation with the FDA,
reviews and approves the application for patent term restoration.

For patents that might expire during the application phase, the patent owner may request an interim patent extension. An interim
patent extension increases the patent term by one year and may be renewed up to four times. For each interim patent extension granted,
the post-approval patent extension is reduced by one year. The director of the USPTO must determine that approval of the drug candidate
covered  by  the  patent  for  which  a  patent  extension  is  being  sought  is  likely.  Interim  patent  extensions  are  not  available  for  a  drug
candidate for which a BLA has not been submitted.

Expedited Development and Review Programs

The  FDA  is  required  to  facilitate  the  development  and  expedite  the  review  of  pharmaceutical  products  that  are  intended  for  the
treatment  of  a  serious  or  life-threatening  condition  for  which  there  is  no  effective  treatment  and  which  demonstrate  the  potential  to
address unmet medical need for the condition. Under the fast track program, the sponsor of a new drug candidate may request the FDA to
designate the product for a specific indication as a fast track product concurrent with or after the filing of the IND for the drug candidate.
The FDA must determine if the drug candidate qualifies for fast track designation within 60 days after receipt of the sponsor’s request.

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In addition to other benefits, such as the ability to have more frequent interactions with the FDA, the agency may initiate review of
sections of a fast track product’s BLA before the application is complete. This rolling review is available if the applicant provides and the
FDA  approves  a  schedule  for  the  submission  of  the  remaining  information  and  the  applicant  pays  applicable  user  fees.  However,  the
FDA’s PDUFA review period for a fast track application does not begin until the last section of the BLA is submitted. In addition, the fast
track designation may be withdrawn by the FDA if the agency believes that the designation is no longer supported by data emerging in
the clinical trial process.

Healthcare Regulation

Pharmaceutical Coverage and Reimbursement

Significant  uncertainty  exists  as  to  the  coverage  and  reimbursement  status  of  any  products  for  which  we  may  obtain  regulatory
approval. In the United States, sales of any products for which we may receive regulatory approval for commercial sale will depend in
part  on  the  availability  of  coverage  and  reimbursement  from  third-party  payors.  Third-party  payors  include  government  authorities,
managed care providers, private health insurers and other organizations. Third-party payors establish the coverage and reimbursement
policies  for  pharmaceutical  products,  and  the  marketability  of  any  products  for  which  we  may  receive  regulatory  approval  for
commercial sale depends on those payors’ coverage policies and reimbursement rates. Third-party payors may limit coverage to specific
products on an approved list, or formulary, which might not include one or more of our drug candidates, if approved. Third-party payors,
together with regulators and others, are increasingly challenging the prices charged for pharmaceutical products and health services, in
addition to their cost-effectiveness, safety and efficacy.

In  addition,  no  uniform  policy  for  coverage  and  reimbursement  exists  in  the  United  States.  Third-party  payors  often  rely  upon
Medicare coverage policy and payment limitations in setting their own coverage and reimbursement policies, but also have their own
methods and approval process apart from Medicare determinations. Therefore, coverage and reimbursement rates can vary significantly
from payor to payor.

Moreover, obtaining coverage and adequate reimbursement is a time-consuming and costly process. We may be required to provide
scientific  and  clinical  support  for  the  use  of  any  product  to  each  third-party  payor  separately  with  no  assurance  that  approval  will  be
obtained,  and  we  may  need  to  conduct  expensive  pharmacoeconomic  studies  in  order  to  demonstrate  the  cost-effectiveness  of  our
products. We cannot be certain that our drug candidates will be considered cost-effective by third-party payors. This process could delay
the market acceptance of any drug candidates for which we may receive approval and could have a negative effect on our future revenues
and operating results.

Other U.S. Healthcare Laws and Compliance Requirements

In  the  United  States,  our  business  may  be  subject  to  healthcare  fraud  and  abuse  regulation  and  enforcement  by  both  the  federal
government and the states in which we conduct our business, particularly once third-party reimbursement becomes available for one or
more  of  our  products.  The  healthcare  fraud  and  abuse  laws  and  regulations  that  may  affect  our  ability  to  operate  include,  but  are  not
limited to:

● The federal Anti-Kickback Statute, which prohibits, among other things, knowingly and willfully soliciting, receiving, offering
or paying any remuneration (including any kickback, bribe or rebate), directly or indirectly, overtly or covertly, in cash or in
kind,  to  induce,  or  in  return  for,  either  the  referral  of  an  individual,  or  the  purchase,  lease,  order  or  recommendation  of  any
good, facility, item or service for which payment may be made, in whole or in part, under the Medicare and Medicaid programs,
or other federal healthcare programs;

● The federal civil and criminal false claims laws and civil monetary penalty laws, including the civil False Claims Act, or FCA,
which  prohibits,  among  other  things,  knowingly  presenting,  or  causing  to  be  presented,  claims  for  payment  of  government
funds that are false or fraudulent, or knowingly making, or using or causing to be made or used, a false record or statement
material to a false or fraudulent claim to avoid, decrease, or conceal an obligation to pay money to the federal government;

● The federal Health Insurance Portability and Accountability Act of 1996 (the “HIPAA”), which, among other things, prohibits
executing a scheme to defraud any healthcare benefit program, including private third-party payors, and prohibits (i) knowingly
and  willfully  falsifying,  concealing  or  covering  up  a  material  fact  or  making  any  materially  false,  fictitious  or  fraudulent
statement or representation and (ii) making or using any false writing or document knowing the same to contain any materially
false, fictitious or fraudulent statement or entry in connection with the delivery of or payment for healthcare benefits, items or
services;

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● HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009 (the “HITECH”),
and their respective implementing regulations, which impose requirements relating to the privacy, security and transmission of
individually  identifiable  health  information  held  by  covered  entities,  including  health  plans,  healthcare  clearinghouses  and
certain healthcare providers, and their business associates, individuals or entities that perform certain services on behalf of a
covered entity that involve the use or disclosure of individually identifiable health information. HITECH also created new tiers
of civil monetary penalties, amended HIPAA to make civil and criminal penalties directly applicable to business associates and
gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce HIPAA
and seek attorneys’ fees and costs associated with pursuing federal civil actions;

● The  federal  Physician  Payments  Sunshine  Act,  being  implemented  as  the  Open  Payments  Program,  which  requires
manufacturers of drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid or
the Children’s Health Insurance Program (with certain exceptions) to report annually to the Centers for Medicare and Medicaid
Services (the “CMS”), information related to direct or indirect payments and other transfers of value to physicians and teaching
hospitals, as well as ownership and investment interests held in a company by physicians and their immediate family members.
Beginning in 2022, applicable manufacturers will also be required to report information regarding payments and transfers of
value  provided  to  physician  assistants,  nurse  practitioners,  clinical  nurse  specialists,  certified  nurse  anesthetists  and  certified
nurse-midwives; and

● U.S.  state  and  local  laws  and  regulations,  such  as  state  anti-kickback  and  false  claims  laws,  which  may  apply  to  sales  or
marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payors,
including  private  insurers;  state  laws  that  require  pharmaceutical  companies  to  comply  with  the  pharmaceutical  industry’s
voluntary  compliance  guidelines  and  the  relevant  compliance  guidance  promulgated  by  the  federal  government  or  otherwise
restrict payments that may be made to healthcare providers; state laws that restrict the ability of manufacturers to offer co-pay
support  to  patients  for  certain  prescription  drugs;  state  laws  that  require  drug  manufacturers  to  report  information  related  to
clinical trials, or information related to payments and other transfers of value to physicians and other healthcare providers or
marketing expenditures; state laws that require drug manufacturers to report information on the pricing of certain drugs; state
laws and local ordinances that require identification or licensing of sales representatives; and state laws governing the privacy
and security of health information in certain circumstances, many of which differ from each other in significant ways and often
are not preempted by HIPAA, thus complicating compliance efforts.

We will be required to spend substantial time and money to ensure that our business arrangements with third parties comply with
applicable healthcare laws and regulations. Even then, governmental authorities may conclude that our business practices do not comply
with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If
governmental authorities find that our operations violate any of these laws or any other governmental regulations that may apply to us,
we  may  be  subject  to  significant  civil,  criminal  and  administrative  penalties,  damages,  fines,  disgorgement,  individual  imprisonment,
exclusion  from  government  funded  healthcare  programs,  such  as  Medicare  and  Medicaid,  and  additional  reporting  obligations  and
oversight if we become subject to a corporate integrity agreement or other agreement to resolve allegations of non-compliance with these
laws, and we may be required to curtail or restructure our operations. Moreover, we expect that there will continue to be federal and state
laws  and  regulations,  proposed  and  implemented,  that  could  impact  our  operations  and  business.  In  addition,  the  approval  and
commercialization of any drug candidate we develop outside the United States will also likely subject us to foreign equivalents of the
healthcare  laws  mentioned  above,  among  other  foreign  laws.  The  extent  to  which  future  legislation  or  regulations,  if  any,  relating  to
health  care  fraud  and  abuse  laws  or  enforcement,  may  be  enacted  or  what  effect  such  legislation  or  regulation  would  have  on  our
business remains uncertain.

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Healthcare Reform

In  the  United  States  there  have  been,  and  continue  to  be,  several  legislative  and  regulatory  changes  and  proposed  reforms  of  the
healthcare system to contain costs, improve quality and expand access to care. In the United States, there have been and continue to be a
number of healthcare-related legislative initiatives that have significantly affected the pharmaceutical industry. For example, the Patient
Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (collectively, the “ACA”),
was  passed  in  March  2010,  substantially  changing  the  way  healthcare  is  financed  by  both  governmental  and  private  insurers  and
significantly impacting the U.S. pharmaceutical industry. Among other things, the ACA subjects biologics to potential competition by
lower-cost  biosimilars;  addresses  a  new  methodology  by  which  rebates  owed  by  manufacturers  under  the  Medicaid  Drug  Rebate
Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected; increases the minimum Medicaid rebates owed
by manufacturers under the Medicaid Drug Rebate Program and extends the rebate program to individuals enrolled in Medicaid managed
care organizations; establishes annual fees and taxes on manufacturers of certain branded prescription drugs; and creates a new Medicare
Part D coverage gap discount program in which, as a condition of coverage of its products under Medicare Part D, manufacturers must
now  agree  to  offer  70%  point-of-sale  discounts  off  negotiated  prices  of  applicable  brand  drugs  to  eligible  beneficiaries  during  their
coverage gap period.

Some  of  the  provisions  of  the  ACA  have  yet  to  be  fully  implemented,  while  certain  provisions  have  been  subject  to  judicial  and
Congressional challenges. In addition, there have been efforts by the Trump Administration to repeal or replace certain aspects of the
ACA and to alter the implementation of the ACA and related laws. For example, Congress has considered legislation that would repeal
or  repeal  and  replace  all  or  part  of  the  ACA.  While  Congress  has  not  passed  comprehensive  repeal  legislation,  bills  affecting  the
implementation of certain taxes under the ACA have been signed into law. The Tax Cuts and Jobs Act of 2017 (the “Tax Act”), includes
a provision repealing, effective January 1, 2019, the tax-based shared responsibility payment imposed by the ACA on certain individuals
who  fail  to  maintain  qualifying  health  coverage  for  all  or  part  of  a  year  commonly  referred  to  as  the  “individual  mandate.”  On
January 22, 2018, President Trump signed a continuing resolution on appropriations for fiscal year 2018 that delayed the implementation
of  certain  ACA-mandated  fees,  including  the  so-called  “Cadillac”  tax  on  certain  high  cost  employer-sponsored  insurance  plans,  the
annual  fee  imposed  on  certain  high  cost  employer-sponsored  insurance  plans,  the  annual  fee  imposed  on  certain  health  insurance
providers based on market share and the medical device excise tax on non-exempt medical devices. The Bipartisan Budget Act of 2018
(the “BBA”), among other things, amends the ACA, effective January 1, 2019, to reduce the coverage gap in most Medicare drug plans,
commonly  referred  to  as  the  “donut  hole.”  In  addition,  in  July  2018,  the  CMS  issued  a  final  rule  permitting  further  collections  and
payments  to  and  from  certain  ACA  qualified  health  plans  and  health  insurance  issuers  under  the  ACA  risk  adjustment  program  in
response to the outcome of federal district court litigation regarding the method CMS uses to determine this risk adjustment. Additional
legislative changes or regulatory changes related to the ACA remain possible. In December 2018, a United States District Court Judge
for the Northern District of Texas ruled that the entire ACA is unconstitutional because the tax penalty associated with the “individual
mandate”  was  repealed  by  Congress  as  part  of  the  Tax  Act.  This  ruling  is  under  appeal  and  stayed  pending  appeal.  While  the  United
States District Court Judge for the Northern District of Texas, as well as the Trump Administration and the CMS, have stated that the
ruling will have no effect while this appeal is pending, it is unclear how this decision, subsequent appeals and other efforts to invalidate
the ACA, regulations promulgated under the ACA or portions thereof, will impact the ACA and its implementation.

Additionally, there has been increasing legislative and enforcement interest in the United States with respect to specialty drug pricing practices.
Specifically,  there  have  been  several  recent  U.S.  Congressional  inquiries  and  proposed  and  enacted  federal  and  state  legislation  designed  to,  among
other things, bring more transparency to drug pricing; reduce the cost of prescription drugs under Medicare; review the relationship between pricing and
manufacturer  patient  programs;  and  reform  government  program  reimbursement  methodologies  for  drugs.  For  example,  the  Trump  Administration
released  a  “Blueprint”  to  lower  drug  prices  and  reduce  out-of-pocket  costs  of  drugs  that  contains  additional  proposals  to  increase  manufacturer
competition, increase the negotiating power of certain federal healthcare programs, incentivize manufacturers to lower the list price of their products and
reduce the out-of-pocket costs of drug products paid by consumers. On January 31, 2019, Office of the Inspector General of the Department of Health
and  Human  Services  proposed  modifications  to  the  federal  Anti-Kickback  Statute  discount  safe  harbor  for  the  purpose  of  reducing  the  cost  of  drug
products  to  consumers  which,  among  other  things,  if  finalized,  will  remove  safe  harbor  protection  from  rebates  paid  by  manufacturers  to  Medicare
Part D plans, Medicaid managed care organizations and pharmacy benefit managers working with these organizations. Although a number of these, and
other proposed measures may require additional authorization to become effective, Congress and the Trump Administration have each indicated that
they  will  continue  to  seek  new  legislative  and/or  administrative  measures  to  control  drug  costs.  Individual  states  in  the  United  States  have  also
increasingly  passed  legislation  and  implemented  regulations  designed  to  control  pharmaceutical  and  biological  product  pricing,  including  price  or
patient reimbursement limitations, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in
some  cases,  designed  to  encourage  importation  from  other  countries  and  bulk  purchasing.  In  addition,  regional  healthcare  authorities  and  individual
hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription
drug and other healthcare programs.

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Moreover,  on  May  30,  2018,  the  Right  to  Try  Act  was  signed  into  law.  The  law,  among  other  things,  provides  a  federal  framework  for  certain
patients to access certain investigational new drug products that have completed a Phase 1 clinical trial and that are undergoing investigation for FDA
approval. Under certain circumstances, eligible patients can seek treatment without enrolling in clinical trials and without obtaining FDA permission
under  the  FDA  expanded  access  program.  There  is  no  obligation  for  a  pharmaceutical  manufacturer  to  make  its  drug  products  available  to  eligible
patients as a result of the Right to Try Act.

Manufacturing and Supply

Our manufacturing strategy for our drug candidates consists of two progressive steps, involving (i) using contract development and manufacturing
organizations (CDMOs) and (ii) establishing our own capabilities and infrastructure, including a manufacturing facility. We believe that development of
our own manufacturing facility will provide us with enhanced control of material supply for both clinical trials and the commercial market, enable the
more rapid implementation of process changes and help us achieve better long-term margins.

We currently outsource the manufacturing of clinical trial material for our internally developed, IND enabling projects to leading CDMOs in China
such as WuXi Biologics, and the manufacturing of clinical trial material for clinical stage projects which were in-licensed from our global partners to
reputable  global  CDMOs,  which  have  established  track  records  for  both  clinical  trial  material  supply  and  commercial  material  supply.  We  have
assembled a seasoned internal team with deep experience in this area to drive and monitor this process. For contingency planning purposes, we have
also established relationships with other CDMOs. We expect to continue our outsourcing relationships with contract manufacturers to meet the ongoing
needs  for  the  development  of  our  drug  candidates.  We  have  framework  agreements  with  these  external  service  providers,  under  which  they  provide
services to us on a project-by-project basis. We also monitor the manufacturing activities of clinical trial material at CDMO to ensure the compliance
with  local  and  international  cGMP  and  applicable  regulations.  Currently,  our  contract  manufacturers  obtain  raw  materials  and  supplies  for  the
manufacturing  activities  from  multiple  suppliers  who  we  believe  have  sufficient  capacity  to  meet  our  demands.  We  typically  order  materials  and
services on a purchase order basis. We also enter into long-term capacity or minimum supply arrangements with them.

We believe it is strategically important and advantageous to leverage the GMP manufacturing process managed by I-Mab Biopharma (Hangzhou)
Limited  (“I-Mab  Hangzhou”),  in  order  to  ensure  quality,  secure  production  slots  and  maximize  cost-effectiveness  for  clinical  trial  materials  and
commercial  supplies.  We  have  taken  concrete  steps  to  execute  our  strategic  plan.  These  steps  include  detailed  operational  planning  for  the  facility,
actions taken to secure an appropriate site, and negotiations with external financing providers. The construction of the Hangzhou Facility commenced in
April 2021. The Hangzhou Facility completed the establishment of a pilot capacity of two production lines (one line configured with 2 x 2,000L and the
other line with 1 x 2,000L) in the middle of 2022. The project has been financed by a combination of internal and external sources. In September 2020, a
group of domestic investors in China invested a total of US$120 million (in RMB equivalent) in cash. Upon closing, we, through our wholly-owned
subsidiary, and parties acting in concert, remain the majority shareholder of I-Mab Hangzhou, the entity holding the Hangzhou Facility. On July 16,
2022, I-Mab Hangzhou entered into a definitive financing agreement with a group of domestic investors in China to raise approximately US$46 million
in RMB equivalent. Upon closing of the financing, we, through our wholly-owned subsidiary, will remain the largest shareholder. Upon the occurrence
of certain triggering events as specified in the shareholders agreement among I-Mab Hangzhou, we, through our wholly-owned subsidiary, and other
domestic  investors,  including  but  not  limited  to  I-Mab  Hangzhou’s  failure  to  accomplish  certain  public  offering  condition,  we  may  be  obligated  to
repurchase the equity held by other domestic investors in cash or in our stocks in the period beyond 12 months. I-Mab Hangzhou is an affiliate of our
company  and  is  positioned  to  provide  manufacturing  capabilities  for  us,  as  well  as  the  continued  development  of  selected  biologics  assets  that  are
unessential  to  our  immuno-oncology  focus,  i.e.,  olamkicept,  plonmarlimab  (excluding  cytokine  release  syndrome  indications)  and  a  few  preclinical
CMC-stage programs. We believe that this strategic alignment is necessary to maximize the pipeline value and balance the development risk for us.

R&D Governance

We  have  established  robust  governance  regime  for  all  stages  of  our  research  and  development  activities,  through  our  internal
discovery,  CMC,  pre-clinical  and  clinical  development  programs,  and  through  product  acquisition  and  in-licensing  strategies.  The
research and development governance regime has enabled our senior management to continuously oversee and monitor our company’s
research and development activities for complying with applicable laws, regulations, rules, guidelines and internal policies.

We have established various governance and decision-making committees, composed of senior representatives from the respective
functional units to review, discuss and determine, for instance, whether a drug candidate molecule is qualified to move forward into the
next stage or not, what data package is considered appropriate and compliant to be submitted to regulatory agencies and how clinical
safety of our investigational drugs will be monitored and reported. These committees make decisions over the critical “checkpoints” of
our  research  and  development  activities  and  include  our  (i)  Science  Committee,  (ii)  IND  Scientific  Advisory  Committee,  (iii)  R&D
Project/Program/Portfolio Governance, (iv) Medical Safety Council, (v) Safety Management Team, and (vi) Quality Committees.

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Science Committee for Early Stage Research of Drug Candidates

Our Science Committee is composed of selected functional heads and members of the leadership, including Dr. Zhengyi Wang, Dr.
Jane Meng, Isaac Meng, Dr. Weimin Tang, Dr. Zheng Huang and Dr. Xi Chen, chaired by Dr. Zhengyi Wang. The Science Committee
will collaborate with the management team to enhance our company’s research practices and assist management in evaluating scientific
aspects  of  potential  in-licensing  opportunities,  collaborations  and  new  technologies  that  may  bolster  our  pipeline  and  research  and
development capabilities. The Science Committee’s responsibilities include:

● approving the target review package submitted by our discovery group;

● providing governance on the quality and integrity of drug candidates, before entering into CMC process development;

● examining the experimental data and scientific evidence supporting the drug candidate;

● reviewing and making recommendations on our company’s resource allocation in further development; and

● setting the direction for scientific and technical review of potential in-licensing opportunities.

Furthermore, our Corporate Compliance Function led by Mr. Thomas Song has taken a number of steps to review the integrity and
reliability of the experimental data submitted with the selected drug candidate. The design, operation and monitoring of this data integrity
program is integral to our quality control and assurance system, and is independent with respect to our research and development unit
and Science Committee, to ensure the compliance with the principles of scientific data integrity, including controls over changes to, and
deletions of source of data.

R&D Council

Our R&D Council is composed of Dr. Andrew Zhu, Dr. John Hayslip, Dr. Zhengyi Wang, Isaac Meng and Dr. Zheng Huang, with
Dr. Andrew Zhu serving as the chair. The R&D Council is responsible for reviewing potential options elevated by our program team and
making  scientific  decisions  on  proposals  for  our  clinical  assets.  On  clinical  program  level,  our  R&D  Council  reviews  and  endorses
decisions  regarding  dose  selection,  dose  changes  or  other  substantial  changes  to  a  study  that  would  have  impact  on  the  clinical
development plan, such as disease of focus, line of therapy and significant changes to patient population.

Portfolio Governance Committee

Our Portfolio Governance Committee is composed of Dr. Andrew Zhu, Dr. John Hayslip, Dr. Junhua Qiao, Richard Yeh, Dr. Weimin
Tang and Dr. Zheng Huang, with Dr. Andrew Zhu serving as the chair. Our Portfolio Governance Committee is a decision-making body
that  focuses  on  reviewing  and  approving  our  portfolio  strategy,  determining  portfolio  and  project  prioritization,  approving  project
development strategy, resource and execution plan to ensure the R&D investments and decisions are in line with our company’s overall
business strategy. The Portfolio Governance Committee responsibilities include:

● reviewing  our  portfolio  strategy,  including  but  not  limited  to  in-licensing  and  out-licensing  plan  and  strategy,  internal  and

external policy changes that could impact our portfolio strategically;

● determining portfolio and project prioritization;

● approving development stage gates;

● reviewing  project  development  strategy,  including  but  not  limited  to  FIH  studies,  early  development,  proof-of-concept  trials,
pivotal trials, regulatory submission for BLA, commercial strategy, and any significant changes to the development plan; and

● reviewing execution plans, including but not limited to timeline and budgets, major health authority interactions and changes to

such timeline and milestones.

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Medical Safety Council (“MSC”)

Our MSC is composed of selected research and development functional heads and Subject Matter Experts, including Isaac Meng,
Dr. Andrew Zhu, Yang Zhou, Dr. Zhengyi Wang, Dr. Jane Meng, Dr. Claire Xu and Richard Cheng Li, chaired by Isaac Meng, Head of
Medical Office. Our MSC is the highest medical safety governance body engaged in setting standards for protecting the medical safety of
patients  and  users  of  our  products,  and  providing  strategic  direction  in  product  vigilance  and  patient  or  user  safety.  The  MSC’s
responsibilities include:

● establishing standards and policies, and identifying best practices related to medical safety;

● providing  oversight  of  all  medical  safety  relevant  activities,  and  overseeing  the  implementation  of  our  company’s  medical

safety standard, as well as the outcomes of the periodic audits;

● addressing safety information that could result in a significant change in the benefit-risk profile of our products; and

● reviewing  and  approving  first-in-human  (“FIH”)  studies  and  any  other  issues  with  respect  to  the  safety  of  human  exposure

during early development stage.

Safety Management Teams (“SMT”) for Product-Related Safety System

Our  SMT  is  composed  of  representatives  from  each  research  and  development  function,  including  Isaac  Meng,  program  lead,
clinical physician (on program level), representatives of regulatory affairs (on program level), representatives of project management (on
project level), external business partner (if applicable) and representatives of medical affairs (if applicable), chaired by Isaac Meng. The
SMT  is  a  product-based,  cross-functional  collaborative  team  responsible  for  the  review  and  evaluation  of  medical  safety  data  arising
from  any  source  throughout  the  product  lifecycle.  Our  SMT  performs  assessments  to  identify  changes  in  safety  profiles  or  potential
safety signals. Based on these safety evaluations, the SMT will determine the appropriate safety-related actions to be taken with respect
to the product based on its benefit-risk profile for subjects in clinical trials and for patients treated with the marketed product.

Our SMT works closely with and escalates safety issues, as appropriate, to the MSC to fulfill our medical safety obligations. Our
SMT  is  responsible  for  reviewing  available  safety  information  from  multiple  sources  on  a  regular  basis  and  make  final  decisions  on
safety in a timely manner with appropriate cross-functional input.

Quality Committees

We have formed two Quality Committees, namely, I-Mab Biopharma Quality Management Review and R&D Quality Management

Committee.

I-Mab Biopharma Quality Management Review (“I-Mab QMR”) is composed of Dr. Andrew Zhu, Isaac Meng, Dr. Junhua Qiao and
Thomas  Song,  co-chaired  by  Isaac  Meng  and  Dr.  Junhua  Qiao.  I-Mab  QMR  is  responsible  for  supervising  our  overall  quality
management  system  (“QMS”),  including  R&D,  production  and  manufacturing,  and  our  other  functional  departments,  to  set  up  a
comprehensively  risk  control  system  and  ensure  that  our  operations  are  in  accordance  with  the  requirements  of  laws  and  regulations,
industry Good X Practices (GXP) and our internal regulations and systems. The QMS covers all business activities such as the selection
of outsourcing service vendors, daily management and audit, research, development, and production, and we also have signed quality
agreements with CDMO, CMO, CRO, and other vendors.

Under QMR, we have established an R&D Quality Management Committee composed of representatives of various R&D functional
departments, including Dr. Andrew Zhu, Isaac Meng, Yang Zhou, Dr. Claire Xu, Dr. Jane Meng and heads of therapeutic areas (in China
and  the  United  States),  chaired  by  Dr.  Andrew  Zhu.  Our  R&D  Quality  Management  Committee  is  responsible  for  supervising  the
operation of the R&D QMS and making final decisions on important quality issues such as patient safety, data integrity and regulatory
compliance in the R&D process.

An audit team consisting of experts who are responsible for R&D, CMC, and quality assurance within I-Mab will conduct an annual

audit of all sites of our key vendors. Other vendors will be audited as required at least once every three years.

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Code of Conduct

We have formulated a Code of Conduct that covers business ethics, responsible research and development activities, public relations,
intellectual property and data protection, workplace, assets, corporate governance, concerns reporting and other behaviors, and serves as
a  guide  for  all  employees  and  third  parties  to  take  compliance  actions  in  business  activities.  We  have  arranged  compliance  training
courses for newly hired employee to help them understand the business code of conduct that falls in line with industry and our standards.
In  addition,  we  have  adopted  an  employee  handbook  which  describes  the  compliance  management  system  implemented  at  I-Mab  to
ensure compliance with applicable legal and regulatory requirements.

Quality Control and Assurance

In addition to the research and development governance regime described above, we have established an independent quality control
and  assurance  system  and  devote  significant  attention  to  quality  control  for  the  designing,  manufacturing  and  testing  of  our  drug
candidates. Our Assurance Board is composed of Dr. Andrew Zhu, and Thomas Song. Our senior management is firmly committed to
delivering our quality performance, actively involved in allocating sufficient resources to quality management system and setting quality
governance mechanism.

For  pre-clinical  and  clinical  trials,  the  overall  quality  management  outlines  the  implementation  of  our  business  policies  and
procedures  in  order  to  consistently  comply  with  the  regulatory  requirements,  including  Good  Laboratory  Practices,  or  GLP;  Good
Clinical Practices, or GCP; Good Pharmacovigilance Practice, or GVP and other applicable regulatory requirements in the performance
of the trials. This includes:

● predefined policies and procedures to manage pre-clinical and clinical studies;

● dedicated resources and personnel with well delineated roles and responsibilities;

● quality risk management across the product lifecycle;

● continuous quality management system improvement;

● non-conformance management via quality issue management process;

● development and execution of quality audit program; and

● regulatory inspection readiness.

For CMC, we have established a quality management system to oversee the process development and API and drug production at
the CDMOs. This system takes a holistic approach bringing senior management, quality assurance team and company policies together
to create an efficient and agile quality culture. Our CMC quality commitment includes, but not limited to:

● ensure  that  the  product  manufacturing,  releasing,  packaging,  storage,  and  shipment  meets  all  specifications  and  the

requirements of the FDA and/or NMPA’s quality system regulations, cGMP or other applicable laws and regulations;

● review  of  process  deviations  and  changes,  root  cause  analysis,  impact  assessment,  corrective  and  preventative  actions,  and

validation;

● ensure the consistency of key quality practices with our CDMOs;

● proactive quality system review based on audits, process data analysis, equipment condition, and periodic review of internal and

external sources of data; and

● assessment of regulatory guidance and ensure readiness for regulatory inspections.

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C.    Organizational Structure

The  following  chart  illustrates  our  company’s  organizational  structure,  including  our  principal  subsidiaries,  as  of  the  date  of  this

annual report:

D.   Property, Plant and Equipment

Our headquarter is located in Shanghai, China, where we lease and occupy approximately 4,420 square meters as office space and
1,270 square meters as laboratories. We currently lease approximately 839 square meters of office space in Beijing, approximately 54
square  meters  of  office  space  in  Tianjin,  approximately  2,468  square  meters  of  warehouse  space  and  office  space  in  Lishui,
approximately 743 square meters of office space in Gaithersburg and approximately 1,081 square meters of office space and laboratories
in San Diego. The terms of these leases range from one year to seven years.

ITEM 4A. UNRESOLVED STAFF COMMENTS

None.

ITEM 5.

OPERATING AND FINANCIAL REVIEW AND PROSPECTS

You should read the following discussion and analysis of our financial condition and results of operations in conjunction with our

consolidated financial statements and the related notes included elsewhere in this annual report on Form 20-F.

This discussion may contain forward-looking statements based upon current expectations that involve risks and uncertainties. Our
actual results may differ materially from those anticipated in these forward-looking statements as a result of various factors, including
those set forth under “Item 3. Key Information—D. Risk Factors” or in other parts of this annual report on Form 20-F.

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A.   Operating Results

Overview

We  are  a  clinical  stage  biotech  company  committed  to  the  discovery,  development  and  commercialization  of  novel  or  highly
differentiated biologics to treat diseases with significant unmet medical needs, particularly cancers and autoimmune diseases. To date, we
have  developed  an  innovative  pipeline  of  more  than  10  clinical  and  preclinical  stage  assets  through  our  internal  research  and
development efforts and in-licensing arrangements with global pharmaceutical and biotech companies.

Our research and development capabilities encompass discovery, translational medicine, biologics CMC development, pre-clinical

development and clinical development with footprints in Shanghai, Beijing and the United States.

Since the commencement of our operation in 2014, we have devoted most of our efforts and financial resources to organize and staff
our  operations,  formulate  business  planning,  raise  capital,  establish  our  intellectual  property  portfolio  and  conduct  pre-clinical  and
clinical trials of our drug candidates.

We have not generated any revenue from the sales of our commercial products, and as a result, we had incurred net losses since the
commencement to the end of 2019 of our operations. In 2020, we achieved corporate profitability with net income of RMB470.9 million,
which was primarily attributable to the revenues recognized in connection with the strategic collaboration with AbbVie of RMB1,542.7
million. In 2021 and 2022, our net losses were RMB2,331.5 million and RMB2,507.3 million (US$363.5 million), respectively. We do
not expect to generate product revenue unless and until we obtain marketing approval for and commercialize a drug candidate, and we
cannot assure you that we will ever generate significant revenue or profits.

Key Factors Affecting Our Results of Operations

Our  results  of  operations,  financial  condition,  and  the  year-to-year  comparability  of  our  financial  results  have  been,  and  are

expected to continue to be, principally affected by the below factors:

Cost and Expenses Structure

Our  results  of  operations  are  significantly  affected  by  our  cost  structure,  which  primarily  consists  of  research  and  development

expenses and administrative expenses.

Research  and  development  activities  are  central  to  our  business  model.  We  believe  our  ability  to  successfully  develop  drug
candidates will be the primary factor affecting our long-term competitiveness, as well as our future growth and development. Developing
high-quality  drug  candidates  requires  a  significant  investment  of  resources  over  a  prolonged  period  of  time,  and  a  core  part  of  our
strategy is to continue making sustained investments in this area. Since our inception, we have focused our resources on our research and
development activities, including conducting pre-clinical studies and clinical trials, and activities related to regulatory filings for our drug
candidates. Our research and development expenses primarily include the following:

● costs related to development of our pipeline assets under all stages including discovery, pre-clinical testing or clinical trials;

● patent license fees and other fees under the licensing, collaboration and development agreements with respect to our in-licensed

drug candidates; and

● employee  salaries  and  related  benefit  costs,  including  share-based  compensation  expenses,  for  research  and  development

personnel and key management.

At this time, we are unable to predict when, if ever, we will be able to achieve profitability. Even if we achieve profitability in the
future, we may not be able to sustain profitability in subsequent periods thereafter. This is due to the numerous risks and uncertainties
associated with developing such drug candidates, including the uncertainty of:

● successful enrollment in and completion of clinical trials;

● establishing an appropriate safety profile;

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● establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers;

● receipt of marketing approvals from applicable regulatory authorities;

● commercializing the drug candidates, if and when approved, whether alone or in collaboration with others;

● obtaining and maintaining patent and trade secret protection and regulatory exclusivity for our drug candidates;

● continued acceptable safety profiles of the products following approval; and

● retention of key research and development personnel.

Any  change  in  the  outcome  of  any  of  these  variables  with  respect  to  the  development  of  any  of  our  drug  candidates  would
significantly  change  the  costs,  timing  and  viability  associated  with  the  development  of  that  drug  candidate.  We  expect  research  and
development  costs  to  continue  to  increase  for  the  foreseeable  future  as  we  expand  our  operations  and  our  development  programs
progress, including as we continue to support and advance the clinical trials of our drug candidates.

Our administrative expenses consist primarily of employee salaries and related benefit costs. Other administrative expenses include
professional fees for consulting and auditing as well as other direct and allocated expenses for rental expenses for our facilities, travel
costs and other supplies used in administrative activities. We expect our administrative expenses to increase in the future to support our
pipeline assets and research and development efforts, and the commercialization of our drug candidates once approval is obtained. We
also anticipate that our administrative expenses will increase as we operate as a public company.

Revenue from Out-Licensing Agreements

We  continue  to  seek  out-licensing  opportunities  for  our  drug  assets  through  our  strengthened  and  expanded  network  of  global
partnerships  and  alliances.  As  we  have  not  obtained  marketing  approval  for  or  commercialized  a  drug  candidate,  our  revenues  at  the
current stage are primarily subject to the availability of the payments from granting licenses to use and otherwise exploit certain of our
intellectual properties linked to our drug assets, which primarily contributed to our revenues in 2020 and 2021. See “Item 4. Information
on  the  Company—B.  Business  Overview—Licensing  and  Collaboration  Arrangements”  for  more  information  on  the  existing  out-
licensing  arrangements.”  However,  substantial  uncertainties  remain  as  to  the  availability  and  the  recognition  of  revenue  from  out-
licensing  agreement.  For  example,  we  recognized  an  aggregate  revenue  of  US$48.0  million  in  2020  and  2021  in  relation  to  our
collaboration with AbbVie based on the probability of achieving a key milestone. However, we witnessed an amendment to the overall
collaboration  arrangement  with  AbbVie,  which  resulted  in  a  lowered  probability  of  achieving  such  key  milestone  and  a  reversal  of
revenue  of  US$-48.0  million  (equivalent  to  RMB-314.2  million)  in  2022.  In  addition,  after  validating  clinical  safety  and  preliminary
efficacy of a drug candidate in our Global Portfolio in clinical trials in the United States, we may elect to out-license the global rights
(excluding  Greater  China)  of  such  drug  candidate,  while  retaining  the  Greater  China  rights  for  further  development  and
commercialization. But we may also choose to retain these rights for the United States or other countries or regions as we may deem fit.
Before  the  commercialization  of  one  or  more  of  our  drug  candidates,  we  expect  that  the  majority  of  our  revenue  will  continue  to  be
generated from out-licensing our intellectual properties.

Funding for Our Operations

During the periods presented, we funded our operations primarily from financing through the issuance and sale of preferred shares
and convertible promissory notes in private placement transactions. Going forward, in the event of successful commercialization of one
or more of our drug candidates, we expect to fund our operations in part with revenue generated from sales of our commercialized drug
products.  However,  with  the  continuing  expansion  of  our  business  and  our  product  pipeline,  we  may  require  further  funding  through
public or private offerings, debt financing, collaboration, and licensing arrangements or other sources. Any fluctuation in our ability to
fund our operations will impact our cash flow plan and our results of operations.

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Our Ability to Commercialize Our Drug Candidates

Our business and results of operations depend on our ability to commercialize our drug candidates, once and if those candidates are
approved for marketing by the respective health authority. Currently, our pipeline consists of more than ten drug candidates ranging in
development  status  from  pre-clinical  to  late-stage  clinical  programs.  Although  we  currently  do  not  have  any  product  approved  for
commercial sale and have not generated any revenue from product sales, we expect to generate revenue from sales of drug candidates
after we complete the clinical development, obtain regulatory approval, and successfully commercialize such drug candidates. Our late-
stage investigational drugs at or potentially near registrational trials are felzartamab, eftansomatropin alfa, and lemzoparlimab. See “Item
4. Information on the Company—B. Business Overview—Our Drug Pipeline” for more information on the development status of our
various drug candidates.

The Effect of Our Acquisition of I-Mab Tianjin

We acquired a controlling interest in I-Mab Tianjin on July 15, 2017 and the remaining interest in I-Mab Tianjin in May 2018. Since
our  acquisition  of  the  controlling  interest  in  I-Mab  Tianjin  on  July  15,  2017,  I-Mab  Tianjin  has  been  consolidated  into  our  results  of
operations.  Shortly  after  we  acquired  the  controlling  interest  in  I-Mab  Tianjin,  we  integrated  the  operations  of  I-Mab  Tianjin  into  our
operations.  I-Mab  Tianjin  did  not  generate  any  external  revenue  from  July  15,  2017  to  December  31,  2022.  In  connection  with  our
acquisition of I-Mab Tianjin, we identified intangible assets of RMB148.8 million and goodwill of RMB162.6 million of I-Mab Tianjin.
Goodwill is not amortized, but impairment of goodwill assessment is performed on at least an annual basis on December 31 or whenever
events  or  changes  in  circumstances  indicate  that  the  carrying  value  of  the  reporting  unit  exceeds  its  fair  value.  No  impairment  was
identified as of December 31, 2020, 2021 and 2022. Impairment charges could substantially affect our results of operations in the periods
of  such  charges.  In  addition,  impairment  charges  would  negatively  impact  our  financial  ratios  and  could  limit  our  ability  to  obtain
financing  in  the  future.  See  “Item  3.  Key  Information—D.  Risk  Factors—Risks  Related  to  Our  Industry,  Business  and  Operations—
Change in business prospects of acquisitions may result in impairment to our goodwill, which could negatively affect our reported results
of operations.”

Impact of the COVID-19 Pandemic

As of the date of this annual report, the impact of the ongoing global coronavirus-19 (COVID-19) pandemic to our business has been
limited.  To  date,  although  COVID-19  has  caused  some  delays  in  the  initiation  of  the  ongoing  trials  of  certain  clinical-stage  drug
candidates in early 2020, the COVID-19 pandemic has not had a material impact on our ongoing clinical activities, in particular, clinical
activities  related  to  our  late-stage  drug  candidates,  such  as  felzartamab,  lemzoparlimab  and  eftansomatropin  alfa.  See  “Item  4.
Information on the Company—B. Business Overview—Our Drug Pipeline” for the clinical development plans of our drug candidates. As
of  the  date  of  this  annual  report,  the  COVID-19  pandemic  has  not  caused  any  early  termination  of  our  clinical  trials  or  necessitated
removal  of  any  enrolled  patients.  We  employed  various  measures  to  mitigate  impacts  of  the  COVID-19  pandemic  on  our  currently
ongoing trials in Greater China and the United States. We worked closely with our CROs to monitor the situation and manage the process
of our clinical trials. We maintained contact with our patients to ensure that they remain on the trials and that any information they need
will  be  readily  available.  In  addition,  we  believe  the  COVID-19  pandemic  has  not  significantly  impacted  our  ability  to  carry  out  our
obligations under existing contracts or disrupted any supply chains that we rely upon.

Most of the travel restrictions and quarantine requirements in China were lifted in December 2022. There were surges of cases in
many  cities  during  this  time  which  caused  disruptions  to  the  operations  of  our  company,  our  suppliers,  CROs,  CMOs  and  other
contractors,  and  there  remains  uncertainty  as  to  the  future  impact  of  the  COVID-19.  Although  we  believe  we  have  implemented
strategies to potentially minimize the impact of the COVID-19 pandemic to our business, we expect that we may experience delays with
respect  to  the  initiation  and  patient  enrollment  of  certain  additional  trials.  The  extent  to  which  the  COVID-19  pandemic  impacts  the
timing of these additional trials will depend on future developments, which are highly uncertain and cannot be predicted with confidence,
such as the frequency, duration and extent of outbreaks of COVID-19, the appearance of new variants with different characteristics, the
effectiveness of efforts to contain or treat cases, and future actions that may be taken in response to these developments.

Taking  into  account  our  past  and  prospective  cash  burn  rate,  including,  but  not  limited  to,  future  clinical  development  and
administrative expenses, lease payment, capital expenditure and current financial position, our ability to control the speed and breadth of
our clinical development and business development activities and our expansion in headcount, as well as our current internal resources,
we estimate that our financial resources can support our research and development activities and business operations for at least the next
12 months.

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The  above  analyses  are  made  by  our  management  based  on  currently  available  information  concerning  COVID-19.  We  cannot
guarantee that the outbreak of COVID- 19 will not further escalate or have a material adverse effect on our business operations. Please
also  see  “Item  3.  Key  Information—D.  Risk  Factors—Risks  Related  to  Our  Industry,  Business  and  Operations—Our  business  may
continue to be materially and adversely affected by the effects of the COVID-19 pandemic in China.” and “Item 3. Key Information—D.
Risk Factors—Risks Related to Our Industry, Business and Operations—Business disruptions could seriously harm our future revenue
and financial condition and increase our costs and expenses.”

Key Components of Results of Operations

Revenues

For  the  years  ended  December  31,  2021  and  2022,  we  generated  revenue  from  (i)  licensing  and  collaboration,  primarily  through
granting licenses to use and otherwise exploiting certain of our intellectual properties in connection with our drug assets, and (ii) supply
of investigational products to AbbVie. The decrease in 2022 net revenue was primarily due to a non-cash adjustment of US$-48.0 million
(equivalent  to  RMB-314.2  million)  recorded  in  the  second  half  of  2022  following  the  amendment  to  the  original  license  and
collaboration  agreement  with  AbbVie  in  August  2022.  For  the  year  ended  December  31,  2020,  we  generated  substantially  all  of  our
revenues from granting licenses to use and otherwise exploit certain of our intellectual properties in connection with our drug assets.

Research and Development Expenses

Research  and  development  expenses  primarily  consist  of:  (i)  payroll  and  other  related  expenses  of  research  and  development
personnel, (ii) fees associated with the exclusive development rights of our in-licensed drug candidates, (iii) fees for services provided by
contract  research  organizations,  investigators  and  clinical  trial  sites  that  conduct  our  clinical  studies,  and  (iv)  expenses  relating  to  the
development of our drug candidates, including raw materials and supplies, product testing, depreciation, and facility related expenses.

Our current research and development activities primarily relate to the clinical development of the following investigational drugs:

● Eftansomatropin alfa, a differentiated long-acting growth hormone for pediatric growth hormone deficiency, if approved;

● Felzartamab, a differentiated CD38 antibody for multiple myeloma and potentially autoimmune diseases, if approved;

● Lemzoparlimab, a novel CD47 antibody for immuno-oncology, if approved;

● Uliledlimab, a highly differentiated CD73 antibody for solid tumors, if approved;

● Givastomig, a novel, tumor-dependent T-cell engager for gastric and other cancers, if approved;

● TJ-L14B, a PD-L1-based tumor-dependent T-cell engager for solid tumors, if approved;

● Efineptakin alfa, the world’s first and only long-acting recombinant human IL-7 for cancer treatment-related lymphopenia and

cancer immunotherapy, if approved; and

● TJ210, a novel C5aR1 antibody for cancers, if approved.

We  incurred  research  and  development  expenses  of  RMB984.7  million,  RMB1,213.0  million  and  RMB904.9  million  (US$131.2
million) for the years ended December 31, 2020, 2021 and 2022, respectively, representing 71.0%, 57.4% and 55.7% of our total research
and  development  and  administrative  expenses  for  the  corresponding  periods.  We  expect  our  research  and  development  expenses  to
continue  to  increase  for  the  foreseeable  future,  as  we  continue  to  expand  our  operations  and  to  advance  our  pipeline  and  our  drug
candidates toward later stages.

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Administrative Expenses

Administrative expenses primarily consist of salaries and related benefit costs, including share-based compensation, for employees
engaged  in  managerial  and  administrative  positions  or  involved  in  general  corporate  functions,  professional  fees  for  consulting  and
auditing  as  well  as  other  direct  and  allocated  expenses  for  rental  expenses  for  our  facilities,  travel  costs  and  other  supplies  used  in
administrative activities. For the years ended December 31, 2020, 2021 and 2022, our administrative expenses amounted to RMB402.4
million, RMB899.9 million and RMB815.8 million (US$118.3 million), respectively.

Interest Expense

Interest expense consist primarily of interest expenses on our (i) short-term bank borrowings and (ii) convertible promissory notes

issued to certain investors.

Interest Income

Interest income consists primarily of interest income derived from our term deposit and restricted cash pledged as collateral for a

working capital loan.

Other Income (Expenses), Net

Other income (expenses), net consists primarily of income from the equity transfer of I-Mab Hangzhou, fair value change of short-

term and other investments, fair value change of put right liabilities, net foreign exchang gains (losses) and subsidy income.

Equity In Loss Of Affiliates

Equity in loss of affiliates consists primarily of the loss recognized based on our proportionat share in I-Mab Hangzhou.

Taxation

Cayman Islands

I-Mab, our holding entity, is incorporated in the Cayman Islands. According to Harney Westwood & Riegels, our Cayman Islands
counsel,  the  Cayman  Islands  currently  has  no  income,  corporation  or  capital  gains  tax  and  no  estate  duty,  inheritance  tax  or  gift  tax.
Additionally, the Cayman Islands does not impose a withholding tax on payments of dividends to shareholders.

Hong Kong

I-Mab, our holding entity, did its business registration in Hong Kong and had a Hong Kong tax file number. I-Mab Biopharma Hong
Kong Limited is incorporated in Hong Kong. Companies registered in Hong Kong are subject to Hong Kong profits tax on the taxable
income as reported in their respective statutory financial statements adjusted in accordance with the relevant Hong Kong tax laws. Under
the current Hong Kong Inland Revenue Ordinance, from the year of assessment 2018/2019 onwards, companies registered in Hong Kong
are subject to profits tax at the rate of 8.25% on assessable profits up to HK$2,000,000; and 16.5% on any part of assessable profits over
HK$2,000,000.  For  the  years  ended  December  31,  2020,  2021  and  2022,  the  income  tax  expenses  recorded  in  the  consolidated
statements of comprehensive income (loss) for I-Mab were nil, nil and RMB0.7 million, respectively. For the years ended December 31,
2020, 2021 and 2022, I-Mab Biopharma Hong Kong Limited did not make any provisions for Hong Kong profit tax as there were no
assessable profits derived from or earnings in Hong Kong for any of the periods presented. Under the Hong Kong tax law, I-Mab and I-
Mab Biopharma Hong Kong Limited is exempted from income tax on its foreign-derived income and there are no withholding taxes in
Hong Kong on remittance of dividends.

United States

I-Mab Biopharma US Ltd. is incorporated in Maryland and is subject to U.S. federal corporate income tax at a rate of 21%. It is also
subject to state income tax in Maryland at a rate of 8.25%. I-Mab Biopharma US Ltd. has no taxable income for all periods presented and
therefore no provision for income taxes is required.

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China

On March 16, 2007, the National People’s Congress of PRC enacted the Corporate Income Tax Law (the “CIT Law”) (as amended
in  2017  and  2018,  respectively),  under  which  Foreign  Investment  Enterprises  (“FIEs”)  and  domestic  companies  would  be  subject  to
corporate income tax at a uniform rate of 25%. The CIT Law became effective on January 1, 2008. Under the CIT Law, preferential tax
treatments will be granted to entities which conduct businesses in certain encouraged sectors and to entities otherwise classified as “High
and New Technology Enterprises.”

I-Mab Shanghai has been qualified as a “High and New Technology Enterprise” and enjoys a preferential income tax rate of 15%
from 2021 to 2023. Our company’s other PRC subsidiaries are subject to the statutory income tax rate of 25%. No provision for income
taxes has been accrued because all of our PRC subsidiaries are in cumulative loss positions for all the periods presented.

A  valuation  allowance  is  provided  to  reduce  the  amount  of  deferred  tax  assets  if  it  is  considered  more  likely  than  not  that  some
portion or all of the deferred tax assets will not be realized in the foreseeable future. In making such determination, we evaluate a variety
of positive and negative factors including our operating history, accumulated deficit, the existence of taxable temporary differences and
reversal periods.

We have incurred net accumulated operating losses for income tax purposes since our inception. We believe that it is more likely
than not that these net accumulated operating losses will not be utilized in the future based on the assessment as of December 31, 2022.
Therefore, we have provided full valuation allowances for the deferred tax assets as of December 31, 2020, 2021 and 2022.

We evaluate each uncertain tax position (including the potential application of interest and penalties) based on the technical merits,
and measure the unrecognized benefits associated with the tax positions. As of December 31, 2020, 2021 and 2022, we did not have any
significant unrecognized uncertain tax positions.

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Results of Operations

The following table sets forth a summary of our consolidated results of operations for the periods indicated. This information should
be  read  together  with  our  consolidated  financial  statements  and  related  notes  included  elsewhere  in  this  annual  report.  The  operating
results in any period are not necessarily indicative of the results that may be expected for any future period.

For the Year Ended December 31,

2020
RMB

2021
RMB

2022

RMB

USS

(in thousands, except for per share data)

 1,542,668  
 —  
 1,542,668  
 —  

 (984,689) 
 (402,409) 
 155,570  
 24,228  
 (957) 
 412,892  
 (108,587) 
 483,146  
 (12,231) 
 470,915  
 470,915  

 40,115  
 47,911  
 88,026  
 (46,432) 

 (249,665) 
 28,102  
 (221,563) 
 (27,237) 

 (1,212,958) 
 (899,943) 
 (2,071,307) 
 21,333  
 —  
 83,162  
 (367,883) 
 (2,334,695) 
 3,154  
 (2,331,541) 
 (2,331,541) 

 (904,901) 
 (815,766) 
 (1,969,467) 
 26,908  
 (9) 
 (126,587) 
 (437,465) 
 (2,506,620) 
 (697) 
 (2,507,317) 
 (2,507,317) 

 (120,920) 
 349,995  
 470,915  

 (135,717) 
 (2,467,258) 
 (2,331,541) 

 400,304  
 (2,107,013) 
 (2,507,317) 

 (36,198)
 4,074
 (32,124)
 (3,949)

 (131,198)
 (118,275)
 (285,546)
 3,901
 (1)
 (18,353)
 (63,426)
 (363,425)
 (101)
 (363,526)
 (363,526)

 58,039
 (305,487)
 (363,526)

 134,158,824  
 157,231,652  

 174,707,055  
 174,707,055  

 189,787,292  
 189,787,292  

 189,787,292
 189,787,292

 3.51  
 3.00  

 8.07  
 69.0  

 (13.35) 
 (13.35) 

 (30.71) 
 (30.71) 

 (13.21) 
 (13.21) 

 (30.38) 
 (30.38) 

 (1.92)
 (1.92)

 (4.41)
 (4.41)

Summary  Consolidated  Statements  of  Comprehensive  Income

(Loss) Data:

Revenues

Licensing and collaboration revenue
Supply of investigational products

Total revenues

Cost of revenues

Expenses

Research and development expenses (1)
Administrative expenses (1)
Income (loss) from operations

Interest income
Interest expense
Other income (expenses), net
Equity in loss of affiliates (1)

Income (loss) before income tax expense

Income tax benefit (expense)

Net income (loss) attributable to I-Mab
Net income (loss) attributable to ordinary shareholders
Other comprehensive income (loss)

Foreign currency translation adjustments, net of nil tax
Total comprehensive income (loss) attributable to I-Mab
Net income (loss) attributable to ordinary shareholders
Weighted-average number of ordinary shares used in calculating net

income (loss) per share
Basic
Diluted

Net loss per share attributable to ordinary shareholders

Basic
Diluted

Net income (loss) per ADS attributable to ordinary shareholders

—Basic
—Diluted

Note:

(1) Share-based compensation expenses were allocated as follows:

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Research and development expenses
Administrative expenses
Equity in loss of affiliates
Total

For the Year Ended December 31,
2022

2020
RMB

2021
RMB

RMB

USS

(in thousands)

 284,431  
 209,033  
 32,707  
 526,171  

 201,926  
 406,683  
 13,267  
 621,876  

 117,876  
 239,272  
 13,852  
 371,000  

 17,090
 34,691
 2,008
 53,789

Year Ended December 31, 2022 Compared to Year Ended December 31, 2021

Revenues

Total net revenues for the year ended December 31, 2022 were RMB-221.6 million (US$-32.1 million), compared with RMB88.0
million  for  the  year  ended  December  31,  2021.  The  decrease  in  2022  net  revenue  was  primarily  due  to  a  non-cash  adjustment  of
US$-48.0  million  (equivalent  to  RMB-314.2  million)  recorded  in  the  second  half  of  2022  following  the  amendment  to  the  original
license  and  collaboration  agreement  with  AbbVie  in  August  2022.  This  amendment  led  to  a  lowered  probability  of  achieving  a  key
milestone that was included in the total consideration of revenue recognition in prior years. The decrease was partially offset by revenue
of RMB92.6 million from license and collaboration arrangements and the supply of investigational products.

Research and Development Expenses

The following table sets forth a breakdown of the major components of our research and development expenses in absolute amounts

and as a percentage of our total research and development expenses for the periods indicated:

CRO service fees
In-licensed patent right fees
Employee benefit expenses
Material costs for drug candidates
Other expenses
Total

 727,573  
 66,344  
 347,571  
 23,141  
 48,329  
 1,212,958  

2021

RMB

     %      RMB     

     %

For the Year Ended December 31,
2022
US$
(in thousands, except percentages)
 523,559  
 3,316  
 324,363  
 20,857  
 32,806  
 904,901  

 60.0  
 5.5  
 28.7  
 1.9  
 3.9  
 100.0  

 75,909  
 481  
 47,028  
 3,024  
 4,756  
 131,198  

 57.9
 0.4
 35.8
 2.3
 3.6
 100.0

Our research and development expenses decreased by 25.4% from RMB1,213.0 million for the year ended December 31, 2021 to
RMB904.9 million (US$131.2 million) for the year ended December 31, 2022, primarily attributable to (i) a decrease in CRO and CMO
service fees from RMB727.6 million for the year ended December 31, 2021 to RMB523.6 million (US$75.9 million) for the year ended
December  31,  2022,  primarily  due  to  the  reduced  demand  for  investigational  products  as  we  procured  sufficient  stock  in  2021;  (ii)  a
decrease  in  in-licensed  patent  right  fees  from  RMB66.3  million  for  the  year  ended  December  31,  2021  to  RMB3.3  million  (US$0.5
million)  for  the  year  ended  December  31,  2022;  and  (iii)  a  slight  decrease  in  employee  benefit  expenses  of  employees  involved  in
research and development from RMB347.6 million for the year ended December 31, 2021 to RMB324.4 million (US$47.0 million) for
the year ended December 31, 2022.

In  2022,  88.2%  and  11.8%  of  our  total  research  and  development  expenses  were  attributable  to  clinical  programs  and  preclinical
programs,  respectively,  as  compared  to  94.3%  and  5.7%  in  2021.  In  2022,  felzartamab  and  eftansomatropin  alfa  accounted  for
approximately 23.6% and 20.6% of our external research and development expenses, which primarily included payments to CROs and
CMOs.  In  2021,  felzartamab  and  lemzoparlimab  accounted  for  approximately  26.4%  and  34.8%  of  our  external  research  and
development expenses, which primarily included licensing fees and payments to CROs and CMOs. No other programs accounted for a
significant  portion  of  our  research  and  development  expenses  in  2022  and  2021.  Though  we  manage  our  external  research  and
development  expenses  by  program,  we  do  not  allocate  our  internal  research  and  development  expenses  by  program  because  our
employees and internal resources may be engaged in projects for multiple programs at any time.

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Administrative Expenses

Our  administrative  expenses  decreased  from  RMB899.9  million  for  the  year  ended  December  31,  2021  to  RMB815.8  million
(US$118.3 million) for the year ended December 31, 2022, primarily attributable to the decrease in share-based compensation expenses
by RMB167.4 million (US$24.3 million) in relation to the management personnel and optimized control of operating and administrative
expenses,  and  partially  offset  by  the  increase  of  the  accrued  expenses  in  relation  to  the  disputes  with  Tracon  of  RMB95.5  million
(US$13.8 million).

Interest Income

We recorded interest income of RMB21.3 million and RMB26.9 million (US$3.9 million) for the years ended December 31, 2021
and 2022, respectively. The change was primarily attributable to the interest income derived from bank deposits and a decrease in bank
balance.

Other Income (Expenses), Net

We  recorded  other  income  of  RMB83.2  million  and  other  expenses  of  RMB126.6  million  (US$18.4  million)  for  the  years  ended
December 31, 2021 and 2022, respectively. The change was primarily attributable to unrealized exchange losses due to the significant
fluctuation in the exchange rate of RMB against USD in 2022, and the fair value change of short-term and other investments.

Equity in Loss of Affiliates

We  recorded  equity  in  loss  of  affiliates  of  RMB367.9  million  and  RMB437.5  million  (US$63.4  million)  for  the  years  ended
December 31, 2021 and 2022, respectively. The change was primarily due to the increased expenditure of our investee, I-Mab Hangzhou.

Year Ended December 31, 2021 Compared to Year Ended December 31, 2020

Revenues

Our revenues generated for the year ended December 31, 2021 consisted of (i) revenue generated from licensing and collaboration,
which primarily includes revenue recognized in connection with the strategic collaboration with AbbVie, and milestone payments from
CSPC  Pharmaceutical  Group  Limited  pursuant  to  our  licensing  agreement,  and  (ii)  revenue  generated  from  supply  of  investigational
products to AbbVie under the strategic collaboration agreement. In comparison, the revenues generated for the year ended December 31,
2020 solely consisted of the revenues recognized in connection with the strategic collaboration with AbbVie.

Our revenues decreased from RMB1,542.7 million for the year ended December 31, 2020 to RMB88.0 million for the year ended
December 31, 2021, primarily attributable to the decrease in our revenue generated from licensing and collaboration from RMB1,542.7
million  for  the  year  ended  December  31,  2020  to  RMB40.1  million  for  the  year  ended  December  31,  2021,  offset  by  the  revenue  we
generated from supply of investigational products of RMB47.9 million for the year ended December 31, 2021.

Research and Development Expenses

The following table sets forth a breakdown of the major components of our research and development expenses in absolute amounts

and as a percentage of our total research and development expenses for the periods indicated:

CRO service fees
In-licensed patent right fees
Employee benefit expenses
Material costs for drug candidates
Other expenses
Total

For the Year Ended December 31,
2021

2020

RMB

%

RMB

%

(in thousands, except percentages)

 439,537  
 28,266  
 460,149  
 15,610  
 41,127  
 984,689  

 44.6  
 2.9  
 46.7  
 1.6  
 4.2  
 100.0  

 727,573  
 66,344  
 347,571  
 23,141  
 48,329  
 1,212,958  

 60.0
 5.5
 28.7
 1.9
 3.9
 100.0

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Our  research  and  development  expenses  increased  by  23.2%  from  RMB984.7  million  for  the  year  ended  December  31,  2020  to
RMB1,213.0  million  for  the  year  ended  December  31,  2021,  primarily  attributable  to  (i)  an  increase  in  CRO  service  fees  from
RMB439.5 million for the year ended December 31, 2020 to RMB727.6 million for the year ended December 31, 2021, to advance our
clinical  and  preclinical  pipelines,  especially  for  lemzoparlimab  (TJC4),  uliledlimab  (TJD5),  and  eftansomatropin  alfa  (TJ101);  (ii)  an
increase in in-licensed patent right fees from RMB28.3 million for the year ended December 31, 2020 to RMB66.3 million for the year
ended  December  31,  2021,  (iii)  partially  offset  by  a  decrease  in  employee  benefit  expenses  of  employees  involved  in  research  and
development  from  RMB460.1  million  for  the  year  ended  December  31,  2020  to  RMB347.6  million  for  the  year  ended  December  31,
2021, mainly due to the decrease of share-based compensation expense by RMB82.5 million.

In  2021,  94.3%  and  5.7%  of  our  total  research  and  development  expenses  were  attributable  to  clinical  programs  and  preclinical
programs, respectively. In 2020, 77.6% and 22.4% of our total research and development expenses were attributable to clinical programs
and preclinical programs, respectively. In 2021, felzartamab and lemzoparlimab accounted for approximately 26.4% and 34.8% of our
external  research  and  development  expenses,  which  primarily  included  licensing  fees  and  payments  to  CROs  and  CMOs.  In  2020,
felzartamab  and  lemzoparlimab  accounted  for  approximately  36.9%  and  13.4%  of  our  external  research  and  development  expenses,
which  primarily  included  payments  to  CROs  and  CMOs.  No  other  programs  accounted  for  a  significant  portion  of  our  research  and
development expenses in 2021 and 2020. Though we manage our external research and development expenses by program, we do not
allocate our internal research and development expenses by program because our employees and internal resources may be engaged in
projects for multiple programs at any time.

Administrative Expenses

Our  administrative  expenses  increased  from  RMB402.4  million  for  the  year  ended  December  31,  2020  to  RMB899.9  million,
primarily  attributable  to  (i)  an  increase  in  employee  benefit  expenses  by  RMB291.7  million  due  to  an  increase  of  share-based
compensation expenses by RMB197.7 million; (ii) an increase in accrued termination fee to Tracon of US$9.0 million; (iii) an increase in
professional service expenses by RMB145.2 million due to the increase in attorneys’ fees occurred during our arbitration with Tracon.

Interest Income

We  recorded  interest  income  of  RMB24.2  million  and  RMB21.3  million  for  the  years  ended  December  31,  2020  and  2021,

respectively. The change was primarily attributable to interest income derived from bank deposits and the fluctuation of bank balance.

Interest Expense

We recorded interest expenses of nil for the year ended December 31, 2021, as compared to an interest expense of RMB1.0 million
for  the  year  ended  December  31,  2020.  The  change  was  primarily  attributable  to  the  interest  expense  related  to  our  short-term
borrowings, which were repaid in June 2020.

Other Income (Expenses), Net

We  recorded  other  income  of  RMB412.9  million  and  RMB83.2  million  for  the  years  ended  December  31,  2020  and  2021,
respectively. The change was primarily attributable to the decrease in gains on deconsolidation of a subsidiary from RMB407.6 million
in 2020 to nil in 2021, as the equity transfer of I-Mab Hangzhou to a group of domestic investors was completed on September 15, 2020.

Equity in Loss of Affiliates

We recorded equity in loss of affiliates of RMB108.6 million and RMB367.9 million for the years ended December 31, 2020 and
2021,  respectively.  The  change  was  primarily  due  to  that  I-Mab  Hangzhou  became  an  unconsolidated  affiliate  of  our  company  since
September 15, 2020.

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Critical Accounting Policies and Significant Judgments and Estimates

Our reported results are impacted by the application of certain accounting policies that require us to make subjective or complex
judgments. These judgments involve estimations of the effect of matters that are inherently uncertain and may significantly impact our
quarterly  or  annual  results  of  operations  or  financial  condition.  Changes  in  the  estimates  and  judgments  could  significantly  affect  our
results of operations, financial condition and cash flows in future years. A description of what we consider to be our most significant
critical accounting policies and estimates follows.

Goodwill

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are
not  individually  identified  and  separately  recognized.  We  allocate  the  cost  of  an  acquired  entity  to  the  assets  acquired  and  liabilities
assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price for acquisitions over the fair
value of the net assets acquired, including other intangible assets, is recorded as goodwill. Goodwill is not amortized, but impairment of
goodwill  is  tested  on  at  least  an  annual  basis  or  whenever  events  or  changes  in  circumstances  indicate  that  the  carrying  value  of  the
reporting unit exceeds its fair value.

We first assess qualitative factors to determine whether it is more likely than not that the fair value of our reporting unit is less than
its  carrying  amount,  including  goodwill.  The  qualitative  assessment  includes  our  evaluation  of  relevant  events  and  circumstances
affecting  our  single  reporting  unit,  including  macroeconomic,  industry,  market  conditions  and  our  overall  financial  performance.  If
qualitative factors indicate that it is more likely than not that our reporting unit’s fair value is less than its carrying amount, then we will
perform the quantitative impairment test by comparing the reporting unit’s carrying amount, including goodwill, to its fair value. If the
carrying amount of the reporting unit exceeds its fair value, an impairment loss will be recognized in an amount equal to that excess.

We  applied  significant  judgement  in  developing  the  fair  value  of  our  single  reporting  unit.  Fair  value  of  the  reporting  unit  is
estimated by us using a discounted cash flow model which requires us to make judgements and assumptions related to future revenues,
discount  rate  and  terminal  growth  rate.  The  probabilities  of  the  success  of  the  clinical  trials  based  on  the  status  of  these  trials  and
reference to the industry benchmark were also incorporated into the assumption of future revenues. No impairment was recognized for
the year ended December 31, 2022.

Revenue Recognition

We adopted Accounting Standard Codification (“ASC”) 606, Revenue from Contracts with Customers (Topic 606) (“ASC 606”) for
all periods presented. Consistent with the criteria of Topic 606, we recognize revenue to depict the transfer of promised goods or services
to customers in an amount that reflects the consideration to which the entity expects to receive in exchange for those goods or services.

Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that
reflects the consideration that the entity expects to receive in exchange for those goods or services. The entity performs the following
five steps to account for the arrangements that an entity determines are within the scope of ASC 606: (i) identify the contract(s) with a
customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price, including variable consideration,
if any; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity
satisfies a performance obligation.

Currently,  the  majority  of  our  revenues  come  from  the  collaboration  revenue  arrangements.  Once  a  contract  is  determined  to  be
within the scope of ASC 606 at contract inception, we evaluate the contract to determine which performance obligations it must deliver
and which of these performance obligations are distinct. We recognize as revenue the amount of the transaction price that is allocated to
each performance obligation when that performance obligation is satisfied or as it is satisfied.

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Variable consideration in collaboration revenue arrangements

If the consideration promised in a contract includes a variable amount, we will estimate the amount of consideration to which we
will be entitled in exchange for transferring the promised goods or services to a customer. An amount of consideration can vary because
of  discounts,  rebates,  refunds,  credits,  price  concessions,  incentives,  performance  bonuses,  penalties,  or  other  similar  items.  The
promised consideration also can vary if an entity’s entitlement to the consideration is contingent on the occurrence or nonoccurrence of a
future event. We estimate an amount of variable consideration by using either of the following methods, depending on which method we
expect to better predict the amount of consideration to which it will be entitled:

a.      The  expected  value—The  expected  value  is  the  sum  of  probability-weighted  amounts  in  a  range  of  possible  consideration
amounts. An expected value may be an appropriate estimate of the amount of variable consideration if an entity has a large number of
contracts with similar characteristics.

b.   The most likely amount—The most likely amount is the single most likely amount in a range of possible consideration amounts
(that is, the single most likely outcome of the contract). The most likely amount may be an appropriate estimate of the amount of variable
consideration if the contract has only two possible outcomes (for example, an entity either achieves a performance bonus or does not).

We include in the transaction price some or all of an amount of variable consideration estimated in accordance with above only to
the  extent  that  it  is  probable  that  a  significant  reversal  in  the  amount  of  cumulative  revenue  recognized  will  not  occur  when  the
uncertainty associated with the variable consideration is subsequently resolved.

Determination of the standalone selling price of each performance obligation

Our collaborative arrangements may contain more than one unit of account, or performance obligation, including grants of licenses
to  intellectual  property  rights,  agreement  to  provide  research  and  development  services  and  other  deliverables.  The  collaborative
arrangements do not include a right of return for any deliverable. As part of the accounting for these arrangements, we must develop
assumptions that require judgment to determine the standalone selling price for each performance obligation identified in the contract. In
developing the stand-alone selling price for a performance obligation, we consider competitor pricing for a similar or identical product,
market  awareness  of  and  perception  of  the  product,  expected  product  life  and  current  market  trends.  In  general,  the  consideration
allocated  to  each  performance  obligation  is  recognized  when  the  respective  obligation  is  satisfied  either  by  delivering  a  good  or
providing a service, limited to the consideration that is not constrained.

Cost-to-cost measure of progress for over time performance obligations

Under  our  certain  licensing  and  collaboration  arrangement  entered  into  with  a  business  partner,  we  recognized  revenue  using  the
cost-to-cost  measure  of  progress  for  its  over  time  performance  obligations  as  we  believe  this  recognition  best  depicts  the  transfer  of
benefits to its business partner as costs are incurred under the licensing and collaboration arrangement. Under the cost-to-cost measure of
progress method, the extent of progress towards completion is measured based on the ratio of costs incurred to-date to the total estimated
costs  for  completion  of  the  performance  obligations.  We  applied  significant  judgment  in  estimating  the  total  estimated  costs  for
completion of performance obligations under such licensing and collaboration arrangement.

See Note 17 “Licensing and Collaboration Arrangements” of our consolidated financial statements included elsewhere in this annual

report for a further discussion of our licensing and collaboration revenues.

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Fair value measurement of put right liabilities

Put right written by us to third party investors in our affiliate was recorded as a freestanding equity-linked instrument and classified
as a put right liability. We determined the fair value of the put right with the assistance of an independent third-party valuation firm. We
used  the  option  pricing  model  (finnerty  model)  to  estimate  the  fair  value  of  the  put  right.  The  model  requires  the  input  of  key
assumptions including the expected terms, estimated volatility, spot price and probability of triggering event for redemption option. The
significant unobservable inputs used in the option pricing model included spot price, estimated volatility and probability of triggering
event for redemption option. Expected terms is estimated based on the timing of a hypothetical redemption event which is assumed to be
the earlier of expected redemption date or expected public offering date. Expected volatility is estimated based on daily stock prices of
the  comparable  companies  for  a  period  with  length  commensurate  to  the  expected  terms  of  redemption  event.  The  spot  price  was
determined  using  the  income  approach  with  assistance  from  an  independent  third-party  valuation  firm.  The  significant  unobservable
inputs used in the income approach include revenue growth rates and discount rates.

Research and Development Expenses

Elements of research and development expenses primarily include (1) payroll and other related expenses of personnel engaged in
research and development activities, (2) in-licensed patent rights fee of exclusive development rights of drugs granted to us, (3) expenses
related  to  preclinical  testing  of  our  technologies  under  development  and  clinical  trials  such  as  payments  to  CRO,  investigators  and
clinical trial sites that conduct the clinical studies, (4) expenses to develop the product candidates, including raw materials and supplies,
product testing, depreciation, and facility related expenses, and (5) other research and development expenses. Research and development
expenses are charged to expenses as incurred when these expenditures are used for our research and development activities and have no
alternative future uses.

We  applied  significant  judgment  in  estimating  the  progress  of  our  research  and  development  activities  and  completion  of  or
likelihood of achieving milestone events per underlying agreements when estimating the research and development costs to be accrued at
each  reporting  period  end.  The  process  of  estimating  our  research  and  development  expenses  involves  reviewing  open  contracts  and
purchase orders, communicating with personnel to identify services that have been performed on our behalf and estimating the level of
service  performed  and  the  associated  costs  incurred  for  the  services  when  we  have  not  yet  been  invoiced  or  otherwise  notified  of  the
actual costs.

Recent Accounting Pronouncements

A list of recently issued accounting pronouncements that are relevant to us is included in Note 2 “Principal Accounting Policies—

2.29 Recent Accounting Pronouncements” of our consolidated financial statements included elsewhere in this annual report.

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B.   Liquidity and Capital Resources

Cash Flows and Working Capital

We generated net income and positive cash flow from our operations for the year ended December 31, 2020, which was primarily
attributable  to  the  collection  of  the  upfront  payment  from  AbbVie.  We  have  incurred  net  losses  and  negative  cash  flows  from  our
operations for the years ended December 31, 2021 and 2022. Substantially all of our losses have resulted from funding our research and
development programs and administrative costs associated with our operations. We generated net income of RMB470.9 million for the
year ended December 31, 2020, and incurred net losses of RMB2,331.5 million and RMB2,507.3 million (US$363.5 million) for the year
ended  December  31,  2021  and  2022,  respectively.  Our  primary  use  of  cash  is  to  fund  our  research  and  development  activities.  We
generated RMB433.6 million in cash from our operating activities for the year ended December 31, 2020, and used RMB973.1 million
and  RMB1,102.8  million  (US$159.9  million)  in  cash  for  our  operating  activities  for  the  year  ended  December  31,  2021  and  2022,
respectively. As of December 31, 2022, we had cash, cash equivalents and restricted cash of RMB3,310.8 million (US$480.0 million).
Our  cash,  cash  equivalents  and  restricted  cash  consist  primarily  of  cash  in  bank  and  on  hand.  Historically,  we  have  financed  our
operations  principally  through  proceeds  from  the  issuance  and  sale  of  preferred  shares  and  convertible  promissory  notes  in  private
placement transactions, and we also received total net proceeds of approximately US$105.3 million from our initial public offering. In
September 2020, we entered into definitive subscription agreements with a consortium of institutional investors to raise approximately
US$418 million through a private placement. The private placement consists of (i) the sale to the institutional investors of approximately
US$418 million of our 29,133,502 ordinary shares (equivalent to 12,666,740 ADSs) at a purchase price equivalent to US$33 per ADS;
and  (ii)  warrants  to  subscribe  for  an  aggregate  of  5,341,267  ordinary  shares  (equivalent  to  2,322,290  ADSs)  at  an  exercise  price
equivalent to US$45 per ADS, which were fully exercised in 2021 and increased the proceeds by approximately US$104.5 million.

The following table sets forth a summary of our cash flows for the periods presented:

For the Year Ended December 31,

2020
RMB

2021
RMB

2022

RMB

US$

(in thousands)

Summary Consolidated Statements of Cash Flow Data:
Net cash (used in)/generated from operating activities
Net cash (used in)/generated from investing activities
Net cash generated from financing activities
Effect of exchange rate changes on cash and cash equivalents and restricted cash  
Net increase/(decrease) in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash, beginning of the year
Cash, cash equivalents and restricted cash, end of the year

 433,558  
 (201,901) 
 3,440,481  
 (106,643) 
 3,565,495  
 1,193,283  
 4,758,778  

 (973,093) 
 (727,206) 
 593,924  
 (128,771) 
 (1,235,146) 
 4,758,778  
 3,523,632  

 (1,102,805) 
 458,382  
 42,357  
 389,203  
 (212,863) 
 3,523,632  
 3,310,769  

 (159,892)
 66,459
 6,141
 56,429
 (30,863)
 510,879
 480,016

We do not expect to generate any revenue from the sales of our commercial products unless and until we obtain regulatory approval
of  and  commercialize  one  of  our  current  or  future  drug  candidates.  We  anticipate  that  we  will  continue  to  generate  losses  for  the
foreseeable future, and we expect the losses to increase as we continue the development of, and seek regulatory approvals for, our drug
candidates and begin to commercialize any approved products. We also expect to incur additional costs associated with operating as a
public  company.  In  addition,  subject  to  obtaining  regulatory  approval  of  any  of  our  drug  candidates,  we  expect  to  incur  significant
commercialization  expenses  for  product  sales,  marketing  and  manufacturing.  Accordingly,  we  anticipate  that  we  will  need  substantial
additional funding in connection with our continuing operations.

Based on our current operating plan, we believe that our current cash and cash equivalents will be sufficient to meet our current and
anticipated  working  capital  requirements  and  capital  expenditures  for  at  least  the  next  12  months.  In  that  time,  we  expect  that  our
expenses  will  increase  substantially  as  we  fund  new  and  ongoing  research  and  development  activities  and  working  capital  needs.  We
have based our estimates on assumptions that may prove to be wrong, and we may use our available capital resources sooner than we
currently expect. Because of the numerous risks and uncertainties associated with the development and commercialization of our drug
candidates,  we  are  unable  to  estimate  the  amounts  of  increased  capital  outlays  and  operating  expenditures  necessary  to  complete  the
development and commercialization of our drug candidates.

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We  may  decide  to  enhance  our  liquidity  position  or  increase  our  cash  reserve  for  future  operations  and  investments  through
additional financing. The issuance and sale of additional equity would result in further dilution to our shareholders and ADS holders, and
the  terms  of  these  securities  may  include  liquidation  or  other  preferences  that  adversely  affect  your  rights  as  an  ADS  holder.  The
incurrence  of  indebtedness  would  result  in  increased  fixed  obligations  and  could  result  in  operating  covenants  that  would  restrict  our
operations,  which  could  potentially  dilute  your  interest.  If  we  raise  additional  funds  through  collaborations,  strategic  alliances  or
licensing  arrangements  with  third  parties,  we  may  have  to  relinquish  valuable  rights  to  our  technologies,  future  revenue  streams  or
research programs or to grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity
or  debt  financings  when  needed,  we  may  be  required  to  delay,  limit,  reduce  or  terminate  our  product  development  or  future
commercialization efforts or grant rights to develop and market products or drug candidates that we would otherwise prefer to develop
and market ourselves.

As of December 31, 2022, 26.3% of our cash and cash equivalents were denominated in RMB and held in China. We may make
additional  capital  contributions  to  our  PRC  subsidiaries,  establish  new  PRC  subsidiaries  and  make  capital  contributions  to  these  new
PRC  subsidiaries,  make  loans  to  our  PRC  subsidiaries,  or  acquire  offshore  entities  with  business  operations  in  China  in  offshore
transactions. However, most of these uses are subject to PRC regulations and approvals. See “Item 3. Key Information—D. Risk Factors
—Risks  Related  to  Doing  Business  in  China—PRC  regulation  of  loans  to  and  direct  investment  in  PRC  entities  by  offshore  holding
companies  and  governmental  control  of  currency  conversion  may  delay  or  prevent  us  from  making  loans  to  our  PRC  subsidiaries  or
making additional capital contributions to our wholly foreign-owned subsidiaries in China, which could materially and adversely affect
our liquidity and our ability to fund and expand our business.” In addition, some other events that are beyond our control may materially
and adversely affect our ability to raise additional capital in future and our liquidity. See “Item 3. Key Information—D. Risk Factors—
Risks Related to Our Business and Our Industry—Our business and results of operations could be adversely affected by public health
crisis (including the COVID-19 global pandemic) and natural catastrophes or other disasters outside of our control in the locations in
which we, our suppliers, CROs, CMOs and other contractors operate.”

We expect that the majority of our future revenues will be denominated in RMB. Under existing PRC foreign exchange regulations,
payments  of  current  account  items,  including  profit  distributions,  interest  payments  and  trade  and  service-related  foreign  exchange
transactions,  can  be  made  in  foreign  currencies  without  prior  SAFE  approval  as  long  as  certain  routine  procedural  requirements  are
fulfilled.  Therefore,  our  PRC  subsidiaries  are  allowed  to  pay  dividends  in  foreign  currencies  to  us  without  prior  SAFE  approval  by
following  certain  routine  procedural  requirements.  However,  approval  from  or  registration  with  competent  government  authorities  is
required where RMB is to be converted into foreign currency and remitted out of China to pay capital expenses such as the repayment of
loans  denominated  in  foreign  currencies.  The  PRC  government  may  at  its  discretion  restrict  access  to  foreign  currencies  for  current
account transactions in the future.

Operating Activities

Net cash used in operating activities for the year ended December 31, 2022 was RMB1,102.8 million (US$159.9 million). Our net
loss  was  RMB2,507.3  million  (US$363.5  million)  for  the  same  period.  The  difference  between  our  net  loss  and  our  net  cash  used  in
operating activities was primarily attributable to certain non-cash expenses, including equity in loss of affiliates of RMB437.5 million
(US$63.4 million) and share-based compensation of RMB357.1 million (US$51.8 million), and changes in certain working capital items,
including  a  decrease  of  a  contract  assets  of  RMB253.8  million  (US$36.8  million),  an  increase  in  accruals  and  other  payables  of
RMB109.9 million (US$15.9 million), a decrease in prepayments and other receivables of RMB109.2 million (US$15.8 million) and an
increase in contract liabilities of RMB52.6 million (US$7.6 million), partially offset by a decrease of lease liabilities of RMB35.7 million
(US$5.2  million).  The  change  in  share-based  compensation  was  attributable  to  the  grant  of  stock  options  to  certain  directors  and
employees of our company under the 2017 Plan, 2018 Plan, 2019 Plan, 2020 Plan, 2021 Plan and 2022 Plan.

Net cash used in operating activities for the year ended December 31, 2021 was RMB973.1 million. Our net loss was RMB2,331.5
million for the same period. The difference between our net loss and our net cash used in operating activities was primarily attributable to
certain  non-cash  expenses,  including  share-based  compensation  of  RMB608.6  million  and  equity  in  loss  of  affiliates  of  RMB367.9
million,  and  changes  in  certain  working  capital  items,  including  an  increase  in  the  contract  liabilities  of  RMB224.0  million  and  an
increase in accruals and other payables of RMB152.1 million, partially offset by an increase of inventories of RMB27.2 million and an
increase of contract assets of RMB26.4 million. The change in share-based compensation was attributable to the grant of stock options to
certain directors and employees of our company under the 2017 Plan, 2018 Plan, 2019 Plan, 2020 Plan and 2021 Plan.

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Net cash generated from operating activities for the year ended December 31, 2020 was RMB433.6 million. Our net income was
RMB470.9 million for the same period. The difference between our net income and our net cash generated from operating activities was
primarily  attributable  to  certain  non-cash  expenses,  including  share-based  compensation  of  RMB493.5  million,  equity  in  loss  of  an
affiliate of RMB108.6 million, non-cash gains on deconsolidation of a subsidiary of RMB407.6 million and changes in certain working
capital  items,  including  an  increase  in  the  accounts  receivable  of  RMB130.5  million,  an  increase  in  the  contract  assets  of  RMB227.4
million,  an  increase  in  the  prepayments  and  other  receivables  of  RMB58.7  million,  partially  offset  by  an  increase  in  the  accruals  and
other payables of RMB173.7 million. The change in share-based compensation was attributable to the grant of stock options to certain
directors and employees of our company under the 2017 Plan, 2018 Plan, 2019 Plan and 2020 Plan.

Investing Activities

Net cash generated from investing activities for the year ended December 31, 2022 was RMB458.4 million (US$66.5 million). The
net cash increase was primarily attributable to RMB7,911.5 million (US$1,147.1 million) of the proceeds from disposal of short-term and
other investments, partially offset by RMB7,407.3 million (US$1,074.0 million) of the cash used in the purchase of short-term and other
investments.

Net  cash  used  in  investing  activities  for  the  year  ended  December  31,  2021  was  RMB727.2  million.  The  net  cash  decrease  was
primarily  attributable  to  RMB10,173.3  million  of  purchase  of  short-term  investments,  partially  offset  by  RMB9,482.0  million  of
proceeds from disposal of short-term investments.

Net  cash  used  in  investing  activities  for  the  year  ended  December  31,  2020  was  RMB201.9  million.  The  net  cash  decrease  was
primarily attributable to RMB2,503.7 million of the cash received from proceeds from disposal of short-term investments, partially offset
by RMB2,492.0 million of purchase of short-term investments, and cash disposed of resulting from deconsolidation of a subsidiary, I-
Mab Hangzhou of RMB257.7 million.

Financing Activities

Net  cash  generated  from  financing  activities  for  the  year  ended  December  31,  2022  was  RMB42.4  million  (US$6.1  million),
primarily attributable to the proceeds from exercise of stock options of RMB44.7 million (US$6.5 million) and the proceeds from bank
borrowings of RMB19.0 million (US$2.7 million), partially offset by RMB21.2 million (US$3.1 million) of the cash used in the payment
of stock repurchase.

Net cash generated from financing activities for the year ended December 31, 2021 was RMB593.9 million, primarily attributable to
the  proceeds  from  exercise  of  warrants  of  RMB672.7  million,  partially  offset  by  payments  of  the  issuance  cost  in  relation  to  private
placement of RMB128.8 million.

Net cash generated from financing activities for the year ended December 31, 2020 was RMB3,440.5 million, primarily attributable
to  the  proceeds  from  the  initial  public  offering  of  our  company,  net  of  payment  of  offering  issuance  cost  of  RMB698.7  million,  the
proceeds  from  private  placement,  net  of  payment  of  issuance  cost  of  RMB2,782.5  million,  partially  offset  by  the  repayment  of  bank
borrowings of RMB50.0 million.

Material Cash Requirements

Contractual Obligation

Our  material  cash  requirements  as  of  December  31,  2022  and  any  subsequent  interim  period  primarily  include  our  capital

expenditures and operating lease obligations.

Our capital expenditures were incurred for purposes of purchasing property, equipment and software. Our capital expenditures were
RMB8.0  million,  RMB29.9  million  and  RMB45.8  million  (US$6.6  million)  in  the  years  ended  December  31,  2020,  2021  and  2022,
respectively.

Our operating lease commitments relate to leases for our office premises pursuant to non-cancellable operating lease agreements.
Other than as shown above, we did not have any significant capital and other commitments, long-term obligations or guarantees as of
December 31, 2022.

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The following table sets forth our contractual obligations as of December 31, 2022:

Total

Less Than 
1 Year

1-3 
Years

3-5 
Years

More Than 
5 Years

     RMB      US$

     RMB

US$      RMB      US$      RMB      US$      RMB      US$

(in thousands)

Operating lease commitments
Capital commitments

 81,009  
 4,392  

 11,745  
 637  

 37,867    5,490  
 619  

 4,268  

 31,916  
 124  

 4,627  
 18  

 10,017  
 —  

 1,453  
 —  

 1,209  
 —  

 175
 —

We  entered  into  certain  unconditional  purchase  obligations  and  other  commitments  in  the  normal  course  of  business.  There  have
been no changes to these commitments that would have a material impact on our ability to meet either short-term or long-term future
cash requirements.

We have not entered into any financial guarantees or other commitments to guarantee the payment obligations of any third parties. In
addition, we have not entered into any derivative contracts that are indexed to our shares and classified as shareholder’s equity or that are
not  reflected  in  our  consolidated  financial  statements.  Furthermore,  we  do  not  have  any  retained  or  contingent  interest  in  assets
transferred to an unconsolidated entity that serves as credit, liquidity or market risk support to such entity. We do not have any variable
interest in any unconsolidated entity that provides financing, liquidity, market risk or credit support to us or engages in leasing, hedging
or product development services with us. Other than as discussed above, we did not have any significant capital and other commitments,
long-term obligations or guarantees as of December 31, 2022. We have a contingent obligation to repurchase the equity held by certain
investors  in  the  period  beyond  12  months.  See  Note  10  of  the  Consolidated  Financial  Statements  for  a  further  discussion  of  this
contingent obligation.

Collaborations, Licensing and Other Arrangements

We  entered  into  collaborative,  licensing,  and  other  arrangements  with  third  parties  that  may  require  future  milestone  payments  to
third  parties  contingent  upon  the  achievement  of  certain  development,  regulatory,  or  commercial  milestones.  Individually,  these
arrangements  are  insignificant  in  any  one  annual  reporting  period.  However,  if  milestones  for  multiple  products  covered  by  these
arrangements would happen to be reached in the same reporting period, the aggregate charge to expense could be material to the results
of operations in that period. From a business perspective, the payments are viewed as positive because they signify that the product is
successfully moving through development and is now generating or is more likely to generate future cash flows from product sales. It is
not possible to predict with reasonable certainty whether these milestones will be achieved or the timing for achievement. See Note 17
“Licensing  and  Collaboration  Arrangements”  of  our  consolidated  financial  statements  included  elsewhere  in  this  annual  report  for
additional information on these collaboration arrangements.

Holding Company Structure

We are a holding company with no material operations of its own. We currently conduct our operations primarily through our PRC
subsidiaries.  As  a  result,  our  ability  to  pay  dividends  depends  upon  dividends  paid  by  our  PRC  subsidiaries.  If  our  existing  PRC
subsidiaries or any newly formed ones incur debt on their own behalf in the future, the instruments governing their debt may restrict their
ability to pay dividends to us. In addition, our wholly foreign-owned subsidiaries in China are permitted to pay dividends to us only out
of its retained earnings, if any, as determined in accordance with PRC accounting standards and regulations. Under PRC law, each of our
subsidiaries and their subsidiaries in China is required to set aside at least 10% of its after-tax profits each year, if any, to fund certain
statutory reserve funds until such reserve funds reach 50% of their registered capital. In addition, our wholly foreign-owned subsidiaries
in  China  may  allocate  a  portion  of  their  after-tax  profits  based  on  PRC  accounting  standards  to  enterprise  expansion  funds  and  staff
bonus  and  welfare  funds  at  their  discretion,  and  their  subsidiaries  may  allocate  a  portion  of  their  after-tax  profits  based  on  PRC
accounting standards to a surplus fund at their discretion. The statutory reserve funds and the discretionary funds are not distributable as
cash  dividends.  Remittance  of  dividends  by  a  wholly  foreign-owned  company  out  of  China  is  subject  to  examination  by  the  banks
designated  by  SAFE.  Our  PRC  subsidiaries  have  not  paid  dividends  and  will  not  be  able  to  pay  dividends  until  they  generate
accumulated profits and meet the requirements for statutory reserve funds.

C.   Research and Development, Patents and Licenses, Etc.

Sec “Item 4. Information on the Company—B. Business Overview—Intellectual Property” and “—R&D Governance.”

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D.   Trend Information

Other  than  as  disclosed  elsewhere  in  this  annual  report,  we  are  not  aware  of  any  trends,  uncertainties,  demands,  commitments  or
events  since  January  1,  2022  that  are  reasonably  likely  to  have  a  material  adverse  effect  on  our  net  revenues,  income,  profitability,
liquidity or capital resources, or that caused the disclosed financial information to be not necessarily indicative of future operating results
or financial conditions.

E.   Critical Accounting Estimates

For our critical accounting estimates, see “Item 5. Operating and Financial Review and Prospects—A. Operating Results—Critical

Accounting Policies and Significant Judgments and Estimates.”

ITEM 6.

DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES

A.   Directors and Senior Management.

The following table sets forth information regarding our directors and executive officers as of the date of this annual report.

DIRECTORS  AND EXECUTIVE OFFICERS

AGE

POSITION/TITLE

Jingwu Zhang Zang, M.D., Ph.D.

Andrew Zhu, M.D., Ph.D.

Richard Yeh

Wei Fu

Lan Kang

Shuai Chen

Chun Kwok Alan Au

Conor Chia-hung Yang

Pamela M. Klein, M.D.

Ruyi He, M.D.

Rong Shao, Ph.D.

Weimin Tang, Ph.D.

John Hayslip, Ph.D.

Gigi Qi Feng

Richard Cheng Li

67

62

54

41

54

49

50

60

61

62

60

57

46

41

38

Founder and Chairman of the Board of Directors

Director, President and Acting Chief Executive Officer

Director, Chief Operating Officer and Interim Chief Financial Officer

Director

Director

Director

Independent Director

Independent Director

Independent Director

Independent Director

Independent Director

Chief Business Officer

Chief Medical Officer

Chief Communications Officer

Chief Legal Officer

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Jingwu  Zhang  Zang,  M.D.,  Ph.D.,  is  our  founder  and  has  served  as  our  chairman  of  the  board  of  directors  since  March  2021.
Between December 2021 and September 2022, Dr. Zang served as our acting chief executive officer. Prior to serving as our chairman of
the board of directors, Dr. Zang served as our director and honorary chairman from October 2019 to March 2021, and chief executive
officer from our inception to October 2019. Prior to founding our company, Dr. Zang served as the chief scientific officer and president
of  Simcere  Pharmaceutical  Group  and  Bioscikin  Co.,  Ltd.  from  September  2013  to  April  2016.  Dr.  Zang  held  senior  management
positions at GlaxoSmithKline (GSK), as the global senior vice president and head of GSK’s Research and Development in China from
April 2007 to June 2013. The academic career of Dr. Zang started in Dr Willems Institute and University of Limburg in Belgium. Dr.
Zang became a professor at Baylor College of Medicine in Houston and later joined the Chinese Academy of Sciences as the founding
director  of  the  Institute  of  Health  Sciences  and  as  a  co-director  of  Institute  Pasteur  Shanghai,  an  independent  non-profit  life  science
institute to address public health problems in China, where he served as its director from October 2004 to September 2006. Dr. Zang also
served  as  a  director  of  Shanghai  Institute  of  Immunology  from  June  2002  to  April  2007.  Dr.  Zang  received  his  M.D.  from  Shanghai
Second Medical University (now part of Shanghai Jiaotong University) in 1984, and his Ph.D. in neuroimmunology from the University
of  Brussels  in  1990.  Dr.  Zang  conducted  his  post-doctoral  work  at  Harvard  Medical  School  in  1992,  and  obtained  his  U.S.  medical
license from the Texas Medical Board through a clinical residency at Baylor College of Medicine in Houston.

Andrew Zhu, M.D.,  Ph.D.,  has  served  on  our  scientific  advisory  board  since  August  2021  and  as  our  director  and  president  since
December  2021  and  acting  chief  executive  officer  since  September  2022.  Dr.  Zhu  is  an  internationally  renowned  oncologist.  He  was
Professor of Medicine at Harvard Medical School and served as Director of Liver Cancer Research at Massachusetts General Hospital
(MGH) Cancer Center. In collaboration with his colleagues, Dr. Zhu established and led the multidisciplinary liver cancer clinic at the
MGH and created one of the most productive clinical and translational research programs in hepatobiliary cancers in the U.S. Prior to
joining  us,  Dr.  Zhu  was  Director  of  Jiahui  International  Cancer  Center  of  the  Jiahui  International  Hospital  in  Shanghai,  China  and
subsequently  served  as  Chief  Scientific  Officer  of  Jiahui  Health.  Dr.  Zhu  has  an  excellent  track  record  in  clinical  development  of
innovative  oncology  drugs.  He  has  led  early-stage  development  of  numerous  targeted  therapy  and  immuno-oncology  drugs  for  liver
cancer  and  several  pivotal  studies  that  led  to  regulatory  approval  by  the  FDA,  including  the  development  of  pembrolizumab
(KEYNOTE-224) and ramucirumab (REACH-2) for advanced liver cancer, and the successful development of the first IDH-1 inhibitor
(Ivosidenib) for cholangiocarcinoma. Dr. Zhu also served on the Steering Committee of several phase III trials in the development of
combination  immunotherapies  for  liver  cancer,  including  atezolizumab  combined  with  bevacizumab.  He  has  also  served  on  the
committee for the establishment of many global HCC Clinical Trial Design and Practice Guidelines, including the NCCN Guidelines for
Hepatobiliary Cancers, AASLD Guidelines for the Treatment of Hepatocellular Carcinoma, and ASCO Guidelines on Systemic Therapy
for Advanced Hepatocellular Carcinoma. Dr. Zhu received his M.D. degree from Peking University Health Science Center in 1982, and
Ph.D. in Microbiology from Columbia University in 1990. Following his postdoctoral research training at Harvard Medical School, Dr.
Zhu  completed  his  clinical  training  in  internal  medicine  at  Yale  New  Heaven  Hospital,  Yale  School  of  Medicine,  and  a  fellowship  in
Hematology-Oncology at Memorial Sloan-Kettering Cancer Center. Dr. Zhu has published more than 300 scientific papers and reviews
in top international journals such as New England Journal of Medicine, Lancet, JAMA, Nature Medicine, Lancet Oncology, Journal of
Clinical Oncology and Cancer Discovery.

Richard Yeh has served as our director, chief operating officer since April 2022 and interim chief financial officer since September
2022. Mr. Yeh has over 20 years of experience working for investment banks and multinational biopharmaceutical companies. Prior to
joining us, Mr. Yeh served as director, chief financial officer and head of strategic of operations in Abbisko Cayman Limited, a company
listed on the Hong Kong Stock Exchange from November, 2020 to April 2022. From July 2018 to April 2020, Mr. Yeh served as the
chief  financial  officer  of  CStone  Pharmaceuticals,  a  Hong  Kong  Stock  Exchange  listed  company.  Prior  to  joining  CStone
Pharmaceuticals, Mr. Yeh was a managing director and the business unit leader of Asia Pacific healthcare equity research at Goldman
Sachs  (Asia)  L.L.C.  in  Hong  Kong.  Before  that,  Mr.  Yeh  served  as  the  head  of  China  healthcare  research  team  at  Citigroup  Capital
Markets Asia Limited. In October 1995, Mr. Yeh joined Amgen Inc., a leading global biotechnology company traded on the Nasdaq, as a
research associate conducting drug research. Mr. Yeh obtained an MBA from Cornell University in the United States in May 2002 and a
Master  of  Science  from  the  University  of  Toronto  in  Canada  in  November  1995.  He  graduated  from  the  University  of  Manitoba  in
Canada with a bachelor of science in May 1993.

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Wei Fu  has  served  as  our  director  since  June  2018.  Mr.  Fu  was  appointed  by  the  C-Bridge  entities  pursuant  to  our  shareholders
agreement dated July 6, 2018. Mr. Fu has served as the chief executive officer and a managing partner of CBC Group since April 2014.
Mr.  Fu  currently  also  serves  on  the  board  of  Everest  Medicines  Limited  (HKEX:  1952)  and  several  private  companies.  From
August 2011 to December 2013, Mr. Fu served as the general manager of the investment department at Far East Horizon International, a
financial services organization. Mr. Fu served as a partner and the head of the Beijing office of Themes Investment Management Ltd, a
private  equity  firm  specializing  in  healthcare  and  environmental  businesses,  from  July  2010  to  July  2011.  From  March  2008  to
April 2010, Mr. Fu worked as an associate director of the private equity department at Standard Chartered Business Consulting (Beijing)
Co.,  Ltd,  where  he  was  mainly  responsible  for  private  equity  investment  in  relation  to  infrastructure  projects.  Mr.  Fu  received  his
bachelor’s  degree  in  electrical  engineering  and  business  administration  from  Nanyang  Technological  University  in  Singapore  in
February 2005.

Lan Kang has served as our director since August 2021. Ms. Kang is currently a managing director at CBC Group, where she is
responsible for managing all the portfolio companies of the CBC Group. Prior to CBC Group, she was an Executive Board Director and
SVP of Fosun International and led Fosun’s insurance business globally. She was also on the board of Fosun Pharma and Fosun United
Health  Insurance.  Prior  to  joining  Fosun,  Ms.  Kang  was  a  Senior  Client  Partner  at  Korn/Ferry  (KF)  International.  She  successfully
developed  the  Life  Sciences  practice  for  KF  in  mainland  China,  providing  executive  search  and  leadership  assessment  and  human
resources  consulting  to  both  multinational  and  local  Chinese  clients.  Prior  to  that,  Ms.  Kang  was  a  management  consultant  at
McKinsey  &  Company,  also  focusing  on  the  healthcare  practice  in  China.  Ms.  Kang  also  serves  as  a  director  of  Everest  Medicines
Limited (HKEX: 1952), Avantor, Inc. (NYSE: AVTR) and several private companies.

Shuai Chen,  has  served  as  our  director  since  April  2023.  Mr.  Chen  joined  Hony  Capital  in  2003  and  is  currently  a  partner  and
managing director of Hony Capital and managing director of Hony private equity investment fund. Mr. Chen is also a member of the
investment  committee  of  Hony  real  estate  investment  fund.  Mr.  Chen  has  extensive  experience  in  investment  management,  supplier
management and retail business. Currently, Mr. Chen also serves as a non-executive director of Century Ginwa Retail Holdings Limited
(HKEX:  0162)  and  an  executive  director,  chairman  of  the  board  and  acting  chief  executive  officer  of  Hospital  Corporation  of  China
Limited  (HKEX:  3869).  Mr.  Chen  received  a  Master  of  Business  Administration  degree  from  China  Europe  International  Business
School in 2010 and a bachelor’s degree in economics from Beijing Forestry University in 1997.

Chun Kwok Alan Au has served as our director since January 2020. Mr. Au is the founder of GT Healthcare, a private equity fund
focusing  on  cross  border  healthcare  investments,  and  has  served  as  the  managing  partner  of  GT  Healthcare  since  September  2015.
Mr. Au has served as a member of the board, and the chairman of the audit committee of CSPC Pharmaceutical Group (HKEX: 1093), a
leading  pharmaceutical  group  in  China,  since  January  2021.  Mr. Au  also  has  served  as  a  panel  member  for  the  Entrepreneur  Support
Scheme (ESS Program) of the Innovation and Technology Fund of the Hong Kong SAR Government since 2014. Mr. Au was an advisor
to  Simcere  Pharmaceutical  Group,  a  leading  pharmaceutical  company  in  China  (previously  listed  on  NYSE:  SCR,  privatized  in
December 2013, when Mr. Au served as chairman of the special committee on the board of directors). Mr. Au was also a member of the
board of China Nepstar Chain Drugstore Ltd. (NYSE: NPD, privatized in September 2016) from March 2013 to August 2016. He was
also  a  member  of  the  board  of  Cellular  BioMedicine  Group  (Nasdaq:  CBMG,  privatized  in  February  2021),  a  clinical-stage
biopharmaceutical  firm  engaged  in  the  development  of  immunotherapies  for  cancer  and  stem  cell  therapies  from  November  2014  to
February 2021. Prior to these, Mr. Au served as the head of the Asia Healthcare Investment Banking of Deutsche Bank Group, advising
healthcare IPOs and M&A in the region from April 2011 to December 2012. Prior to that, Mr. Au served as the executive director at
JAFCO  Asia  Investment  Group,  responsible  for  healthcare  investments  in  China  from  2008  to  2010.  Mr. Au  worked  at  Morningside
Group as a director in charge of healthcare investments in Asia from 2000 to 2005. Mr. Au also worked at KPMG and KPMG Corporate
Finance from 1995 to 1999. Mr. Au received his bachelor’s degree in psychology from Chinese University of Hong Kong in 1995 and his
master’s degree in management from Columbia Business School in New York in 2007. Mr. Au is a certified public accountant (CPA) in
the U.S. and a chartered financial analyst (CFA). He is a member of the Hong Kong Institute of Financial Analysts and member of the
American Institute of Certified Public Accountants.

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Conor  Chia-hung  Yang has  served  as  our  director  since  January  2020.  Mr.  Yang  has  also  served  as  the  chief  financial  officer  of
Sunrate Holdings Limited since February 2023. Mr. Yang was a co-founder of Black Fish Group Limited and has served as the president
of Black Fish Group Limited since November 2017 to February 2021. Prior to that, Mr. Yang was the chief financial officer of Tuniu
Corporation (Nasdaq: TOUR) from January 2013 to November 2017, the chief financial officer of E-Commerce China Dangdang Inc.
from  March  2010  to  July  2012  and  the  chief  financial  officer  of  AirMedia  Group  Inc.,  currently  known  as  AirNet  Technology  Inc.,
(Nasdaq: ANTE) from March 2007 to March 2010. Mr. Yang was the chief executive officer of Rock Mobile Corporation from 2004 to
February  2007.  From  1999  to  2004,  Mr.  Yang  served  as  the  chief  financial  officer  of  the  Asia  Pacific  region  for  CellStar  Asia
Corporation. Mr. Yang was an executive director of Goldman Sachs (Asia) L.L.C. from 1997 to 1999. Prior to that, Mr. Yang was a vice
president of Lehman Brothers Asia Limited from 1994 to 1996 and an associate at Morgan Stanley Asia Limited from 1992 to 1994. Mr.
Yang currently also serves as an independent director of iQIYI, Inc. (Nasdaq: IQ), Tongcheng Travel Holdings Limited (HKEX: 0780)
and UP Fintech Holdings Limited (Nasdaq: TIGR). Mr. Yang received a master’s degree of business administration from University of
California, Los Angeles in 1992.

Pamela M. Klein, M.D., has served as our director since January 2020. Dr. Klein currently a director of argenx SE (Nasdaq: ARGX)
since  April  2016,  a  director  of  Patrys  Limited  (ASX:  PAB)  since  October  2019  and  a  director  of  Frontier  Medicines  (private)  since
January 2023. She previously served as a director of Spring Bank Pharmaceuticals (Nasdaq: SBPH); F-Star (Nasdaq: FSTR) and Jiya
Acquisition  Corp  (Nasdaq:  JYAC).  In  addition,  Dr.  Klein  has  served  as  the  president  at  PMK  BioResearch  since  2008,  offering
consultancy  in  Oncology  Drug  Development  to  Biotech,  Pharma  and  the  Investment  Community.  Dr.  Klein  has  also  served  as  the
consulting  chief  medical  officer  at  Olema  Oncology  since  2018.  Previously,  Dr.  Klein  served  as  Chief  Medical  Officer  for  successful
biotech  start-ups  and  prior  to  that,  Vice  President,  Genentech,  Development.  Dr.  Klein  received  her  bachelor’s  degree  in  cell  and
molecular biology from California State University in 1985 and an M.D. from Stritch School of Medicine, Loyola University Chicago in
1992  followed  by  an  internal  medicine  residency  at  Cedars  Sinai,  Los  Angeles.  Dr.  Klein  spent  seven  years  at  the  National  Cancer
Institute of the NIH in Bethesda, Maryland in medical oncology.

Ruyi He, M.D., has served as our director since June 2021. Dr. He is the Chief Medical Officer (CMO) of RemeGen Inc and Venture
Partner of SDIC Fund Management Co., the former Chief Scientist at the Center for Drug Evaluation at the National Medical Products
Administration (NMPA). He joined the NMPA in 2016, after having worked at the U.S. Food and Drug Administration (FDA) for almost
two decades. As the first overseas expert hired by NMPA as the Chief Scientist, Dr. He organized and led many NMPA reforms on the
drug  evaluation  system.  In  addition  to  establishing  guidance  for  drug  evaluation  and  approvals  in  China,  Dr.  He  has  also  introduced
multiple  international  policies  into  the  NMPA,  including  conditional  approval  and  acceptance  of  clinical  data  from  abroad.  Dr.  He
received his medical degree from China Medical University. Dr. He received his bachelor’s degree and master’s degree in medical from
China  Medical  University  in  1983  and  1986,  respectively,  and  his  M.D.  in  Internal  Medicine  from  Howard  University  in  1999.  He
completed his residency training in Internal Medicine at Howard University Hospital in Washington DC and received his clinical and
research training at the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) at the National Institutes of Health
(NIH) in Bethesda, Maryland. Dr. He is a licensed, board-certified physician in Internal Medicine in the United States.

Rong Shao, Ph.D., has served as our director since June 2021. Dr. Shao is a professor of drug administration policies and regulations,
the Executive Deputy Director of the Research Center of National Drug Policy & Ecosystem (NDPE) and the Director of the NMPA Key
Laboratory  of  Drug  Regulatory  Innovation  and  Evaluation,  at  China  Pharmaceutical  University.  Dr.  Shao  has  been  engaged  in  the
research and education of drug policies and regulations for more than three decades and has contributed to the development of China’s
drug  regulatory  innovation  and  reform,  including  serving  as  an  expert  committee  member  for  NMPA  in  the  revision  of  Drug
Administration Law (2019). Dr. Shao is currently a board member and the committee chair in academic associations, such as the China
Pharmaceutical  Association  and  the  China  Society  for  Drug  Regulation.  She  is  also  an  editorial  board  member  of  China  Pharmacy,
Chinese  Journal  of  New  Drugs,  and  Chinese  Journal  of  Health  Policy.  Dr.  Shao  holds  a  Ph.D.  in  Pharmacy  Administration  from
Shenyang Pharmaceutical University, bachelor’s degree in Medicinal Chemistry from China Pharmaceutical University, and bachelor’s
degree in Law from Nanjing University. Dr. Shao is also a Chinese practicing lawyer.

Weimin Tang, Ph.D., has served as our executive vice president of global business development since April 2018 and as our chief
business  officer  since  July  2021.  Prior  to  joining  our  company,  Dr.  Tang  served  as  an  executive  director  and  a  business  director  at
Hengrui  Therapeutics,  Inc.  from  July  2015  to  March  2018.  Dr.  Tang  served  as  the  vice  president  and  a  business  director  at  Crown
Bioscience  Inc.,  a  pre-clinical  contract  research  organization,  from  July  2011  to  July  2015.  Prior  to  that,  Dr.  Tang  served  as  the  vice
president  and  a  business  director  at  ShanghaiBio  Corporation  Shanghai  Biotechnology  Cooperation,  a  biotech  company  based  in
Shanghai, from October 2010 to July 2011. Dr. Tang received his bachelor’s degree in plant pathology from Zhejiang University in 1986,
master’s degree in microbiology from Chinese Academy of Sciences in 1989, and Ph.D. in biochemistry from Rutgers University, New
Jersey in 1997.

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John  Hayslip,  M.D.,  has  served  as  our  Chief  Medical  Officer  since  April  2022  and  has  spent  over  10  years  leading  global
development teams across biopharma companies. Before joining I-Mab, Dr. Hayslip was the vice president of clinical development at
Nektar Therapeutics (Nasdaq: NKTR) and prior to that, he led development activities for multiple therapies while at AbbVie Oncology.
While  previously  at  AbbVie,  Dr.  Hayslip  assembled  and  led  the  AbbVie  cross-functional  lemzoparlimab  team  to  setup  for  patient
enrollment for the global partnership between I-Mab and AbbVie on lemzoparlimab. Prior to joining AbbVie Oncology, Dr. Hayslip was
an  accomplished  academic  researcher  and  physician  at  the  University  of  Kentucky’s  Markey  Cancer  Center,  where  he  led  numerous
cancer  research  studies  with  a  primary  focus  in  lymphoma  and  leukemia  and  served  in  leadership  positions  for  the  SWOG  cancer
research network, the oldest and largest publicly funded cancer research network in the United States. He also served as the chief for
hematology and bone marrow transplant and as director of clinical research and data management at the Markey Cancer Center and was
instrumental in securing National Cancer Institute cancer center designation for the university. Dr. Hayslip received his medical degree
from  Northeast  Ohio  Medical  University  and  a  master’s  degree  in  Clinical  Research  from  the  Medical  University  of  South  Carolina.
Following his residency in internal medicine, Dr. Hayslip completed his fellowship in Hematology-Oncology at the Medical University
of South Carolina leading to dual board certifications in both Hematology and Medical Oncology. Dr. Hayslip holds multiple U.S. and
international  patents  and  has  published  dozens  of  scientific  papers  and  reviews  in  renowned  journals  including  Lancet  Haematology,
Clinical Cancer Research, Leukemia Research, Blood, and Journal of Clinical Oncology.

Gigi Qi Feng has served as our chief communications officer since October 2020 and served as our vice president and global head of
corporate  communications  from  April  2020  to  October  2020.  Prior  to  joining  us,  Ms.  Feng  served  as  Amgen’s  Japan  Asia  Pacific
regional  head  of  corporate  affairs  from  March  2018  to  March  2020,  where  she  led  communications  efforts  including  executive
communications,  media  relations,  employee  engagement  and  philanthropy  to  build  the  Amgen  brand  across  14  markets  in  the  Asia
Pacific region. Prior to joining Amgen, Ms. Feng held progressive China, Asia Pacific and global communications leadership roles at
Sanofi from November 2013 to March 2018, positioning the company as a scientific partner of choice. Prior to that, Ms. Feng led the
strategic communications group at an international public affairs consultancy from December 2009 to November 2013 with a focus on
the healthcare industry. She also worked at the U.S. Consulate General in Shanghai from 2005 to 2009, where she managed consulate-
wide communications and large-scale events. Ms. Feng received her bachelor’s degree in Government and Asian studies from Cornell
University in 2003 and completed an EMBA program in business strategy from Harvard Business School in 2015.

Richard Cheng Li has served as our chief legal officer since March 2021. From December 2013 to May 2018 and from April 2020 to
March  2021,  Mr.  Li  worked  at  the  Shanghai  office  of  Covington  &  Burling  LLP,  a  U.S.  law  firm,  with  his  last  position  being  an  of
counsel, leading the firm’s China life sciences transaction practice. From May 2018 to March 2020, Mr. Li served as the legal director of
6 Dimensions Capital, a life sciences venture capital firm, in charge of all the legal matters relating to 6 Dimensions’ global investments.
From  August  2008  to  June  2012  and  from  September  2013  to  December  2013,  Mr.  Li  worked  in  the  corporate  practice  group  in  the
Shanghai office of Hogan Lovells International LLP, an international law firm. Mr. Li received his bachelor’s degree in law in 2006 and
master’s degree in international law in 2008 from Sun Yat-sen University, and his LL.M. degree from Columbia Law School in 2013.
Mr. Li has been admitted to the New York State bar and passed the PRC bar exam.

Our Scientific Advisory Board

The members of our scientific advisory board provide scientific, portfolio and project strategy advice to us, including the evaluation

of research and development strategies. The members of our scientific advisory board receive cash compensation for their services.

Howard Weiner, M.D., has served on our scientific advisory board since July 2019. Dr. Weiner is the Robert L. Kroc Professor of
Neurology  at  the  Harvard  Medical  School,  Director  of  the  Partners  Multiple  Sclerosis  (“MS”)  Center  and  Co-Director  of  Center  for
Neurologic Diseases at Brigham & Women’s Hospital in Boston. The Partners MS Center is the first integrated MS Center that combines
clinical care, MRI imaging and immune monitoring to the MS patient as part of the 2000 patient CLIMB cohort study. Dr. Weiner has
pioneered  immunotherapy  in  MS  and  has  investigated  immune  mechanisms  in  nervous  system  diseases  including  MS,  Alzheimer’s
disease, amyotrophic lateral sclerosis, stroke and brain tumors. Dr. Weiner has also pioneered the investigation of the mucosal immune
system for the treatment of autoimmune and other diseases and the use of anti-CD3 to induce regulatory T cells for the treatment of these
diseases.

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Patricia  LoRusso,  D.O.,  M.A.,  Ph.D.,  has  served  on  our  scientific  advisory  board  since  July  2019.  Dr.  LoRusso  is  currently  a
professor of medicine and a clinical scholar in medical oncology and Associate Director of Innovative Medicine at Yale Cancer Center in
New Haven, Connecticut, USA, where she is also Director of Early Therapeutics Disease-Aligned Team. Dr. LoRusso’s expertise is in
testing  new  treatments  on  patient  volunteers  with  advanced-stage  cancer.  She  heads  the  early  clinical  trials  program  at  Yale  Cancer
Center.  She  has  served  as  the  co-leader  of  the  Stand  Up  To  Cancer/Melanoma  Research  Alliance–funded  Melanoma  Dream  Team,  a
Komen  Promise  grant  co-Principal  Investigator,  and  has  been  a  Principal  Investigator  of  the  National  Cancer  Institute  Phase  1/early
phase clinical trials program grant in excess of 20 years. She is currently primary investigator or co-investigator of numerous clinical
trials.  Prior  to  joining  Yale  in  August  2014,  Dr.  LoRusso  served  in  numerous  leadership  roles  at  Wayne  State  University’s  Barbara
Karmanos Cancer Institute for more than 25 years, most recently as director of the Phase 1 Clinical Trials Program and of the Eisenberg
Center  for  Experimental  Therapeutics.  Dr.  LoRusso  also  worked  as  a  director  in  Karmanos  Cancer  Institute,  a  cancer  research  and
provider  network,  from  1997  to  2014.  Dr.  LoRusso  received  her  B.A.  degree  of  science  in  religion/religious  studies  and  biology,  her
master’s  degree  at  Yale  University,  her  D.O.  and  Ph.D.  from  Michigan  State  University,  and  completed  fellowship  training  at  Wayne
State  University.  Dr.  LoRusso  served  as  co-chair  of  the  National  Cancer  Institute  Cancer  Therapy  Evaluation  Program  (NCI  CTEP)
Investigational Drug Steering Committee, a prior parent member of the NCI’s Quick Trials Clinical Subcommittee, and has served as
either an ad hoc or an appointed member on multiple study sections and has reviewed for Komen Promise grants, numerous SPORE and
P01 study sections, and translational research grants. She has served on the education and scientific committees of the American Society
of Clinical Oncology, the Scientific Committee of the American Association for Cancer Research as well as a Vice-Chair for the 2019
AACR  annual  meeting.  She  is  a  member  of  the  NCI  Board  of  Scientific  Council  and  has  served  on  the  Board  of  Directors  for  the
American Association for Cancer Research.

Yi-Long Wu,  M.D.,  FACS,  has  served  on  our  scientific  advisory  board  since  August  2019.  Yi-Long  Wu  is  a  tenured  professor  of
Guangdong  General  Hospital,  Guangdong  Academy  of  Medical  Sciences  and  Guangdong  Lung  Cancer  Institute.  He  is  the  former
President  of  Chinese  Society  of  Clinical  Oncology  (CSCO),  the  Chief  of  the  WUJIEPING  Oncology  Medical  Foundation,  the  vice-
director of the Precision Medicine of the Chinese Medical Doctor Association, the President of Chinese Thoracic Oncology Group (C-
TONG), the President of International Chinese Society of Thoracic Surgery (ICSTS), a Fellow of the American College of Surgeons, a
Member of Board of Directors of the International Association Study of Lung Cancer (IASLC), the Chairman of European Society for
Medical Oncology (ESMO) in China, the Chairman of Federation of Asia Clinical Oncology (FACO), a past Member of the International
Affairs Committee of American Society of Clinical Oncology (ASCO), and a former Member of staging committee of the IASLC. He
graduated from Sun Yat-sen University of Medical Sciences in 1982 and completed his thoracic surgery training in Germany in 1989. His
main research interests are the multidisciplinary synthetic therapy on lung cancer in translation medicine and evidence-based medicine in
oncology.  He  is  leading  the  Chinese  lung  cancer  research  field  and  has  been  the  Principal  Investigator  or  Co-PI  of  more  than  120
international or national multicenter clinical trials. He has contributed 20 books on cancer and has published more than 300 articles in
peer-reviewed journals including J Clin Oncol, Lancet Oncol, New Engl J Med, Cancer Cell and J Thorac Oncol . He also serves on the
editorial boards of Cancer Letters, Annals of Surgical Oncology, Lung Cancer Management, International Journal of Biological Marker
and General Thoracic and Cardiovascular Surgery . He is Editor-in-Chief of Journal of Evidence-based Medicine, Journal of Thoracic
Oncology (Chinese Edition), and The Oncologist (Chinese Edition) etc.

Timothy  Yap,  M.D.,  Ph.D.,  has  served  on  our  scientific  advisory  board  since  August  2019.  Dr.  Yap  is  a  medical  oncologist  and
physician-scientist based at the University of Texas MD Anderson Cancer Center. He is an Associate Professor in the Department for
Investigational Cancer Therapeutics (Phase I Program), and the Department of Thoracic/Head and Neck Medical Oncology. Dr. Yap is
the  Medical  Director  of  the  Institute  for  Applied  Cancer  Science,  a  drug  discovery  biopharmaceutical  unit  where  drug  discovery  and
clinical translation are seamlessly integrated. He is also the Associate Director of Translational Research in the Institute for Personalized
Cancer  Therapy,  which  is  an  integrated  research  and  clinical  trials  program  aimed  at  implementing  personalized  cancer  therapy  and
improving patient outcomes. Prior to his current position, Dr. Yap was a Consultant Medical Oncologist at The Royal Marsden Hospital
in London, UK and National Institute for Health Research BRC Clinician Scientist at The Institute of Cancer Research, London, UK.
Dr. Yap gained his BSc degree with First Class Honors in Immunology and Infectious Diseases at Imperial College London, UK, and was
awarded the Huggett Memorial Prize. His BSc laboratory research involved an immunogenetics study under the supervision of Professor
Charles Bangham. He subsequently went on to attain his Medical degree from Imperial College London, UK, before completing general
medical  training  in  Oxford.  Dr.  Yap’s  main  research  focuses  on  the  first-in-human  and  combinatorial  development  of  molecularly
targeted  agents  and  immunotherapies,  and  their  acceleration  through  clinical  studies  using  novel  predictive  and  pharmacodynamic
biomarkers. Dr. Yap leads immuno-oncology clinical and associated translational studies, including novel agents targeting PD-1/PD-L1,
ICOS, IDO, LAG3, TIM3, STING, TGFbeta, adenosine A2A receptor and fucosylation. He was previously the UK Chief Investigator for
the CheckMate 331 Phase III trial in relapsed small cell lung cancer and the KEYNOTE-158 Phase II biomarker study in advanced solid
tumors and multiple novel immunotherapy combination phase I trials.

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Roy S. Herbst, M.D., Ph.D., has served on our scientific advisory board since July 2019. Dr. Roy S. Herbst is an Ensign Professor of
Medicine (Medical Oncology) and Professor of Pharmacology, the Chief of Medical Oncology at Yale Cancer Center and Smilow Cancer
Hospital,  and  an  Associate  Cancer  Center  Director  for  Translational  Research,  Yale  Cancer  Center  in  New  Haven,  CT.  Dr.  Herbst  is
nationally  recognized  for  his  leadership  and  expertise  in  lung  cancer  treatment  and  research.  He  is  best  known  for  his  work  in
developmental  therapeutics  and  the  personalized  therapy  of  non-small  cell  lung  cancer,  in  particular  the  process  of  linking  genetic
abnormalities of cancer cells to novel therapies. Prior to his appointment at Yale, Dr. Herbst was the Barnhart Distinguished Professor
and  Chief  of  the  Section  of  Thoracic  Medical  Oncology  in  the  Department  of  Thoracic/Head  and  Neck  Medical  Oncology,  at  The
University of Texas M.D. Anderson Cancer Center (UT-MDACC) in Houston, Texas. He also served as Professor in the Department of
Cancer  Biology  and  Co-Director  of  the  Phase  I  Clinical  Trials  Program.  He  has  led  the  Phase  I  development  of  several  of  the  new
generation of targeted agents for non-small cell lung cancer (NSCLC), including gefitinib, erlotinib, cetuximab, and bevacizumab. More
recently,  he  participated  in  the  successful  registration  of  pembrolizumab  for  the  treatment  of  advanced  non-small  cell  lung  cancer,
following the successful Yale-led KEYNOTE 10 study of the immune therapy drug commonly used to treat other cancers. He was co-
leader for the BATTLE-1 clinical trial program, co-leads the subsequent BATTLE-2 clinical trial program, and served as a Co-program
Leader  of  the  Developmental  Therapeutics  Program  for  the  YCC  Support  Grant.  Dr.  Herbst’s  laboratory  work  is  focused  on
immunotherapy  angiogenesis;  dual  epidermal  growth  factor  receptor  (EGFR)/vascular  endothelial  growth  factor  receptor  (VEGFR)
inhibition  in  NSCLC,  and  targeting  KRAS-activated  pathways.  More  recently,  he  has  explored  predictive  biomarkers  for  the  use  of
immunotherapy agents. This work has been translated from the preclinical to clinical setting in multiple Phase II and III studies which he
has led. After earning a B.S. and M.S. degree from Yale University, Dr. Herbst earned his M.D. at Cornell University Medical College
and his Ph.D. in molecular cell biology at The Rockefeller University in New York City, New York. His postgraduate training included
an  internship  and  residency  in  medicine  at  Brigham  and  Women’s  Hospital  in  Boston,  Massachusetts.  His  clinical  fellowships  in
medicine  and  hematology  were  completed  at  the  Dana-Farber  Cancer  Institute  and  Brigham  and  Women’s  Hospital,  respectively.
Subsequently, Dr. Herbst completed a M.S. degree in clinical translational research at Harvard University in Cambridge, Massachusetts.
Dr. Herbst is an author or co-author of more than 275 publications, including peer-reviewed journal articles, abstracts, and book chapters.
His work has been published in many prominent journals, such as the Journal of Clinical Oncology, Clinical Cancer Research, Lancet,
the  New  England  Journal  of  Medicine,  and  Nature.  Dr.  Herbst  was  a  member  of  the  National  Cancer  Policy  Forum  (1998-2014)  for
which he organized an Institute of Medicine meeting focused on policy issues in personalized medicine. He is a member of ASCO and,
as a member of AACR, he chairs the Tobacco Task Force. He is a fellow of the American College of Physicians and an elected member
of  the  Association  of  American  Physicians.  Dr.  Herbst  is  also  a  member  of  the  medical  advisory  committee  for  the  Lung  Cancer
Research  Foundation  and  chair  of  the  communications  committee  for  ASCO  and  the  International  Association  for  the  Study  of  Lung
Cancer.  He  is  currently  the  Vice  Chair  for  Developmental  Therapeutics  for  the  Southwestern  Oncology  Group  (SWOG)  Lung
Committee, Principal Investigator of the SWOG 0819 trial, and steering committee chair for the Lung Master Protocol (Lung MAP).

Chen Dong, Ph.D., has served on our scientific advisory board since September 2020. Dr. Dong is a professor and the director of the
Institute  for  Immunology  at  Tsinghua  University.  Prior  to  joining  Tsinghua  University  in  2013,  Dr.  Dong  served  as  a  professor  of
immunology and the director of the Center for inflammation and Cancer at the University of Texas MD Anderson Cancer Center from
2004 to 2013. Dr. Dong’s research focuses on understanding the molecular mechanisms whereby immune and inflammatory responses
are normally regulated, and applying this knowledge to the understanding and treatment of autoimmunity and allergy disorders as well as
cancer.  The  work  from  Dr.  Dong’s  group  has  led  to  the  discoveries  of  Th17  and  T  follicular  helper  (Tfh)  cell  subsets  in  the  immune
system  and  elucidation  of  their  biological  and  pathological  functions.  Dr.  Dong  has  over  200  publications  and  was  rated  highly  cited
researcher for six years from 2014 to 2019. The honors he has received include the 2009 American Association of Immunologists-BD
Bioscience Investigator Award and 2019 International Cytokine and Interferon Society Biolegend-William E. Paul Award. He is a fellow
of the American Association for the advancement of Science and a member of the Chinese Academy of Sciences. Dr. Dong is currently
an  Editor  for  Immunity,  Editor-in-chief  for  Frontiers  in  Immunology-  T  Cell  Biology  and  Associate  Editor  for  China  Sciences-  Life
Sciences.

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Jun  Ma,  has  served  on  our  scientific  advisory  board  since  December  2020.  Dr.  Ma  is  Chief  Physician,  Professor,  Doctoral
Supervisor,  Director  of  Harbin  Institute  of  Hematology  &  Oncology,  Chief  Supervisor  of  Supervisory  Committee,  Chinese  Society  of
Clinical  Oncology  (CSCO),  Vice  Chairman  of  ACOS,  Chairman  of  Union  for  China  Leukemia  Investigators  of  CSCO,  Past-Vice
Chairman  of  Chinese  Society  of  Hematology,  Vice  Chairman  of  CMDA  for  Hematologist  Committee,  Vice  Chairman  of  CMDA  for
Oncology  Committee  and  Past-Chairman  of  Union  for  China  Lymphoma  Investigators  of  CSCO.  Dr.  Ma  studied  in  the  University  of
Tokyo Hospital since 1979. He was devoted to giving the treatment for benign and malignant diseases of hematological system. He earns
the fame for treating Leukemia and lymphoma. In 1982, he built the very first multiple hematopoietic progenitor cells culture system in
vitro in China. Since 1983, he used the sequential therapy of ATRA and ATO to treat APL for 1200 cases or so. And disease free survival
(DFS) were 85% in 10 years, which achieved international advanced level. He has published about 200 articles in Journals from home
and abroad, with over 40 monographs and has earned 20 national, provincial and municipal Science & Technology awards. He has taken
8 programs from National R&D Program (863 Program) and 25 projects from provincial, municipal scientific research project.

B.  Compensation.

For the fiscal year ended December 31, 2022, we paid an aggregate of approximately US$9.8 million for salaries and benefits in
cash  to  our  executive  officers,  including  the  ones  who  resigned  in  2022,  and  an  aggregate  of  approximately  US$448  thousand  for
compensation  in  cash  to  our  independent  directors.  We  did  not  pay  any  compensation  to  our  directors  who  are  not  our  independent
directors or executive officers. We have not set aside or accrued any amount to provide pension, retirement or other similar benefits to
our executive officers and directors. Our PRC subsidiaries are required by law to make contributions equal to certain percentages of each
employee’s  salary  for  his  or  her  pension  insurance,  medical  insurance,  unemployment  insurance  and  other  statutory  benefits  and  a
housing provident fund.

Employment Agreements and Indemnification Agreements

We  have  entered  into  employment  agreements  with  all  of  our  executive  officers.  Under  these  agreements,  each  of  our  executive
officers is employed for a specified time period. We may terminate employment for cause, at any time, for certain acts of the executive
officer, such as continued failure to satisfactorily perform, willful misconduct or gross negligence in the performance of agreed duties,
conviction or nolo contendere plea of guilty to any felony or any misdemeanor involving moral turpitude, or dishonest act that result in
material  harm  to  our  detriment,  or  material  breach  by  the  executive  officer  of  the  employment  agreement.  We  may  also  terminate  an
executive  officer’s  employment  without  cause  upon  a  60-day  prior  written  notice.  In  such  case  of  termination  by  us,  we  will  provide
severance payments to the executive officer as may be agreed between the executive officer and us. The executive officer may resign at
any time with a 60-day prior written notice.

Under  these  agreements,  each  executive  officer  has  agreed  to  hold,  both  during  and  after  the  termination  or  expiry  of  his  or  her
employment agreement, in strict confidence and not to use, except as required in the performance of his or her duties in connection with
the employment or pursuant to applicable law, any of our confidential information or trade secrets, any confidential information or trade
secrets of our clients or prospective clients, or the confidential or proprietary information of any third party received by us and for which
we have confidential obligations. The executive officers have also agreed to disclose in confidence to us all inventions, designs and trade
secrets which they conceive, develop or reduce to practice during the executive officer’s employment with us and to assign all right, title
and interest in them to us, and assist us in obtaining and enforcing patents, copyrights and other legal rights for these inventions, designs
and trade secrets.

In  addition,  under  these  agreements,  each  executive  officer  has  agreed  to  be  bound  by  non-competition  and  non-solicitation
restrictions during the term of his or her employment and typically for one year following the last date of employment. Specifically, each
executive  officer  has  agreed  not  to  (i)  approach  our  suppliers,  clients,  direct  or  end  customers  or  contacts  or  other  persons  or  entities
introduced to the executive officer in his or her capacity as a representative of us for the purpose of doing business with such persons or
entities that will harm our business relationships with these persons or entities; (ii) assume employment with or provide services to any of
our competitors, or engage, whether as principal, partner, licensor or otherwise, any of our competitors, without our express consent; or
(iii) seek directly or indirectly, to solicit the services of any of our employees who is employed by us on or after the date of the executive
officer’s termination, or in the year preceding such termination, without our express consent.

We have also entered into indemnification agreements with each of our directors and executive officers. Under these agreements, we
agree to indemnify our directors and executive officers against certain liabilities and expenses incurred by such persons in connection
with claims made by reason of their being a director or officer of our company.

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Share Incentive Plans

Second Amended and Restated 2017 Employee Stock Option Plan

In October 2017, we adopted an equity incentive plan (as last amended and restated in December 2019), which we refer to as the
2017 Plan, to secure and retain the services of valuable employees, directors or consultants, and provide incentives for such persons to
exert their best efforts for the success of our business. The maximum aggregate number of ordinary shares which may be issued pursuant
to all awards under the 2017 Plan is 9,609,084, subject to certain adjustments. As of March 31, 2023, options to purchase an aggregate of
1,748,628  ordinary  shares  under  the  2017  Plan  had  been  granted  and  remained  outstanding,  excluding  options  that  were  forfeited,
cancelled or exercised after the relevant grant date.

The following paragraphs describe the principal terms of the 2017 Plan.

Types of awards. The 2017 Plan permits the awards of options.

Plan  administration.  Our  board  of  directors  will  administer  the  2017  Plan.  The  board  of  directors  will  determine,  among  other
things, the participants to receive options, the number and subscription price of options to be granted to each participant, and the terms
and conditions of each option granted.

Offer letter. Options granted under the 2017 Plan are evidenced by an offer letter that sets forth terms, conditions and limitations for
each  option,  which  may  include  the  term  of  the  option,  and  the  provisions  applicable  in  the  event  that  the  grantee’s  employment  or
service terminates.

Eligible participants. We may grant awards to employees, officers, directors, contractors, advisors and consultants of our company.

Vesting schedule. Unless otherwise approved by the board of directors and set forth in an offer letter, the vesting schedule is a three-
year vesting schedule consisting of a cliff vesting 50% on the second anniversary of the applicable vesting commencement date, and a
vesting of the remaining 50% on the third anniversary of the applicable vesting commencement date. Except as otherwise approved by
the board of directors, vested portion of option becomes exercisable upon the earlier of a listing or the occurrence of a change in control.

Exercise of options. The board of directors determines the subscription price for each option, which is stated in the offer letter. The
vested portion of each option will expire if not exercised prior to the time as the board of directors determines at the time of its grant.
However, the maximum exercisable term is ten years from the applicable vesting commencement date or such shorter period specified in
the award agreement. Further, an option will lapse upon the earliest of, among other circumstances, two years after the date when the
option becomes exercisable upon the listing or the occurrence of a change in control, and a violation in transfer restrictions.

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Transfer restrictions. Options may not be transferred in any manner by the participant other than in accordance with the exceptions
provided in the 2017 Plan or the relevant offer letter or otherwise determined by the board of directors, such as transfers by will or the
laws of descent and distribution.

Termination  and  amendment  of  the  2017  Plan.  Unless  terminated  earlier,  the  2017  Plan  has  a  term  of  ten  years.  The  board  of
directors  has  the  authority  to  amend,  suspend  or  terminate  the  plan,  subject  to  the  limitations  of  applicable  laws.  No  amendment,
suspension  or  termination  may  adversely  affect  in  any  material  way  any  awards  previously  granted  pursuant  to  the  2017  Plan  unless
agreed to by the participant.

The  following  table  summarizes,  as  of  March  31,  2023,  the  number  of  ordinary  shares  underlying  outstanding  options  that  we

granted under the 2017 Plan, excluding options that were forfeited, cancelled or exercised after the relevant grant date.

Ordinary

Shares
Underlying
Outstanding

     Options

Exercise
Price
    (US$/Share)    

Date of Grant

*  
*  
 1,748,628  

 1.00
 1.00

April 2, 2018
  October 1, 2017 to December 28, 2018

Date of
Expiration
October 1, 2027
October 1, 2027

Name
Weimin Tang
Other grantees
Total

Note:

*

Less than 1% of our total outstanding shares.

Second Amended and Restated 2018 Employee Stock Option Plan

In February 2019, we adopted an equity incentive plan (as last amended and restated in December 2019), which we refer to as the
2018 Plan, to secure and retain the services of valuable employees, directors or consultants, and provide incentives for such persons to
exert their best efforts for the success of our business. The maximum aggregate number of ordinary shares which may be issued pursuant
to all awards under the 2018 Plan is 11,005,888, subject to certain adjustments. As of March 31, 2023, awards to purchase an aggregate
of  1,354,384  ordinary  shares  under  the  2018  Plan  had  been  granted  and  remained  outstanding,  excluding  options  that  were  forfeited,
cancelled or exercised after the relevant grant date.

The following paragraphs describe the principal terms of the 2018 Plan.

Types of awards. The 2018 Plan permits the awards of options.

Plan  administration.  Our  board  of  directors  will  administer  the  2018  Plan.  The  board  of  directors  will  determine,  among  other
things, the participants to receive options, the number and subscription price of options to be granted to each participant, and the terms
and conditions of each option granted.

Offer letter. Options granted under the 2018 Plan are evidenced by an offer letter that sets forth terms, conditions and limitations for
each  option,  which  may  include  the  term  of  the  option,  and  the  provisions  applicable  in  the  event  that  the  grantee’s  employment  or
service terminates.

Eligible participants. We may grant awards to employees or if approved by the board, designee of any employee.

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Vesting schedule. Unless otherwise approved by the board of directors and set forth in an offer letter, the vesting schedule is a two-
year  vesting  schedule  consisting  of  a  cliff  vesting  50%  on  the  first  anniversary  of  the  applicable  vesting  commencement  date,  and  a
vesting of the remaining 50% on the second anniversary of the applicable vesting commencement date. Notwithstanding the foregoing, if
a listing occurs at any time prior to any option granted under the 2018 Plan becoming full vested, and to the extent such option has been
granted and outstanding, any such option will vest in full with immediate effect upon the listing. Except as otherwise approved by the
board  of  directors,  vested  portion  of  option  becomes  exercisable  upon  the  earlier  of  six  months  after  a  listing  or  the  occurrence  of  a
change in control; provided, however that in each case, no option of an employee will become exercisable until the third anniversary of
such employee’s employment commencement date.

Exercise of options. The board of directors determines the subscription price for each option, which is stated in the offer letter. The
vested portion of each option will expire if not exercised prior to the time as the board of directors determines at the time of its grant.
However, the maximum exercisable term is ten years from the applicable vesting commencement date or such shorter period specified in
the award agreement. Further, an option will lapse upon the earliest of, among other circumstances, two years after the date when the
option becomes exercisable upon the listing or the occurrence of a change in control, and a violation in transfer restrictions.

Transfer restrictions. Options may not be transferred in any manner by the participant other than in accordance with the exceptions
provided in the 2018 Plan or the relevant offer letter or otherwise determined by the board of directors, such as transfers by will or the
laws of descent and distribution.

Termination  and  amendment  of  the  2018  Plan.  Unless  terminated  earlier,  the  2018  Plan  has  a  term  of  ten  years.  The  board  of
directors  has  the  authority  to  amend,  suspend  or  terminate  the  plan,  subject  to  the  limitations  of  applicable  laws.  No  amendment,
suspension  or  termination  may  adversely  affect  in  any  material  way  any  awards  previously  granted  pursuant  to  the  2018  Plan  unless
agreed to by the participant.

The following table summarizes, as of March 31, 2023, the number of ordinary shares underlying our outstanding options that we

granted under the 2018 Plan, excluding options that were forfeited, cancelled or exercised after the relevant grant date.

Ordinary
Shares
Underlying
Outstanding

     Options

*  
*  
 1,354,384  

Exercise
Price

    (US$/ Share)     Date of Grant
July 25, 2019
July 25, 2019

 1.00
 1.00

Date of
Expiration
February 22, 2029
February 22, 2029

Name
Weimin Tang
Other grantees
Total

Note:

*

Less than 1% of our total outstanding shares.

2019 Share Incentive Plan

In October 2019, we adopted an equity incentive plan, which we refer to as 2019 Plan, to promote the success and enhance the value
of our company. Under the 2019 Plan, the maximum aggregate number of ordinary shares available for issuance is 100,000. As of March
31, 2023, options to purchase an aggregate of 72,000 ordinary shares under the 2019 Plan had been granted and remained outstanding,
excluding options that were forfeited, cancelled or exercised after the relevant grant date.

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The following paragraphs describe the principal terms of the 2019 Plan:

Type of Awards. The plan permits the awards of options, restricted shares, restricted share units or other types of awards approved by

the board of directors or a committee of one or more members of the board of directors.

Plan Administration. Our board of directors or a committee of one or more members of the board of directors will administer the
plan. The committee or the board of directors, as applicable, will determine the participants to receive awards, the type and number of
awards to be granted to each participant, and the terms and conditions of each grant

Award Agreement.  Awards  granted  under  the  plan  are  evidenced  by  an  award  agreement  that  sets  forth  the  terms,  conditions  and
limitations  for  each  award,  which  may  include  the  term  of  the  award,  the  provisions  applicable  in  the  event  that  the  grantee’s
employment or service terminates, and our authority to unilaterally or bilaterally amend, modify, suspend, cancel or rescind the award.

Eligibility. We may grant awards to our independent directors, as determined by a committee of one or more members of the board of
directors. Vesting Schedule. In general, the plan administrator determines the vesting schedule, which is specified in the relevant award
agreement.

Exercise  of  Options.  The  plan  administrator  determines  the  exercise  price  for  each  award,  which  is  stated  in  the  relevant  award
agreement.  Options  that  are  vested  and  exercisable  will  terminate  if  they  are  not  exercised  prior  to  the  time  as  the  plan  administrator
determines at the time of grant. However, the maximum exercisable term is ten years from the date of grant.

Transfer Restrictions. Awards may not be transferred in any manner by the participant other than in accordance with the exceptions
provided in the plan or the relevant award agreement or otherwise determined by the plan administrator, such as transfers by will or the
laws of descent and distribution.

Termination and Amendment of the Plan. Our board of directors has the authority to terminate, amend, suspend or modify the plan in
accordance with our articles of association. However, without the prior written consent of the participant, no such action may adversely
affect in any material way any award previously granted pursuant to the plan.

The  following  table  summarizes,  as  of  March  31,  2023,  the  number  of  ordinary  shares  underlying  outstanding  options  that  we

granted under the 2019 Plan, excluding options that were forfeited, cancelled or exercised after the relevant grant date.

Ordinary
Shares
Underlying
Outstanding

Exercise
Price

     Options

     (US$/ Share)      Date of Grant

Date of
Expiration

*  
*  
*  
 72,000  

 6.09
 6.09
 6.09

April 30, 2020 April 30, 2030
April 30, 2020 April 30, 2030
April 30, 2020 April 30, 2030

Name
Chun Kwok Alan Au
Conor Chia-hung Yang
Pamela M. Klein
Total

Note:

*

Less than 1% of our total outstanding shares.

2020 Share Incentive Plan

In July 2020, we adopted 2020 Share Incentive Plan, which we refer to as the 2020 Plan, to promote the success and enhance the
value of our company. Under the 2020 Plan, the maximum aggregate number of ordinary shares which may be issued pursuant to all
awards is 10,760,513 ordinary shares; provided that the maximum number of ordinary shares may be issued pursuant to awards in the
form  of  restricted  share  units  under  the  2020  Plan  should  not  exceed  7,686,081  ordinary  shares.  As  of  March  31,  2023,  options  to
purchase an aggregate of 2,586,302 ordinary shares and restricted share units to receive an aggregate of 808,792 ordinary shares under
the 2020 Plan had been granted and remained outstanding, excluding awards that were forfeited, cancelled, exercised or vested after the
relevant grant date.

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The following paragraphs describe the principal terms of the 2020 Plan:

Type of Awards. The plan permits the awards of options, restricted shares, restricted share units or other share-based awards.

Plan  Administration.  Our  board  of  directors  or  one  or  more  committees  or  subcommittees  of  the  board  of  directors,  or  the
Committee, will administer the plan. The Committee or the board of directors, as applicable, will determine the participants to receive
awards, the type and number of awards to be granted to each participant, and the terms and conditions of each grant.

Award Agreement.  Awards  granted  under  the  plan  are  evidenced  by  an  award  agreement  that  sets  forth  the  terms,  conditions  and
restrictions  for  each  award,  which  may  include  the  term  of  the  award,  the  provisions  applicable  in  the  event  that  the  grantee’s
employment or service terminates, and our authority to unilaterally or bilaterally amend, modify, suspend, cancel or rescind the award.

Eligibility. We may grant awards to our employees, directors and consultants of our company. However, we may grant options that

are intended to qualify as incentive share options only to our employees and employees of our subsidiaries.

Vesting Schedule. The options and restricted share units will vest according to the schedules specified in the plan, unless otherwise
determined by the plan administrator. The vesting schedule of other share-based awards should be determined by the plan administrator,
which is specified in the relevant award agreement.

Exercise  of  Options.  The  plan  administrator  determines  the  exercise  price  for  each  award,  which  is  stated  in  the  relevant  award
agreement.  Options  that  are  vested  and  exercisable  will  terminate  if  they  are  not  exercised  prior  to  the  time  as  the  plan  administrator
determines at the time of grant. However, the maximum exercisable term is ten years from the date of grant.

Transfer Restrictions. Awards may not be transferred in any manner by the participant other than in accordance with the exceptions
provided in the plan or the relevant award agreement or otherwise determined by the plan administrator, such as transfers by will or the
laws of descent and distribution.

Termination  and  Amendment  of  the  Plan.  Our  board  of  directors  has  the  authority  to  terminate,  amend  or  modify  the  plan  in

accordance with our articles of association.

The following table summarizes, as of March 31, 2023, the number of ordinary shares underlying outstanding options and restricted
share units that we granted under the 2020 Plan, excluding awards that were forfeited, cancelled, exercised or vested after the relevant
grant date.

     Ordinary Shares 

Underlying Options 

and Restricted Share  Exercise Price 

Units

(US$/Share)

* (1)
*  
* (1)
*  
* (1)
*  
* (1)
*  
*  
*  
* (1)

 3,395,094  

Date of Grant
September 4, 2020 to March 4, 2022  

N/A  
March 4, 2022
 9.20
September 4, 2020 to March 4, 2022
N/A
March 4, 2022
 9.20
September 4, 2020 to March 4, 2022
N/A
March 4, 2022
 9.20
March 4, 2022
N/A
August 14, 2020 to January 11, 2021
 5.91
April 1, 2021
 19.67
 9.20
March 4, 2022
N/A   August 14, 2020 to March 4, 2022

Date of Expiration
—
March 4, 2032
—
March 4, 2032
—
March 4, 2032
—
January 11, 2031
April 1, 2031
March 4, 2032
—

Name
Jingwu Zhang Zang

Weimin Tang

Gigi Qi Feng

Richard Cheng Li
Other grantees

Total

Notes:

*

Less than 1% of our total outstanding shares.

(1) Represents restricted share units.

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2021 Share Incentive Plan

In May 2021, we adopted 2021 Share Incentive Plan, which we refer to as the 2021 Plan, to promote the success and enhance the
value of our company. Under the 2021 Plan, the maximum aggregate number of ordinary shares which may be issued pursuant to all
awards is 12,023,618 ordinary shares; provided that the maximum number of ordinary shares may be issued pursuant to awards in the
form  of  restricted  share  units  under  the  2021  Plan  should  not  exceed  6,011,809  ordinary  shares.  As  of  March  31,  2023,  options  to
purchase an aggregate of 4,142,040 ordinary shares and restricted share units to receive an aggregate of 1,752,194 ordinary shares under
the 2021 Plan had been granted and remained outstanding, excluding awards that were forfeited, cancelled, exercised or vested after the
relevant grant date.

The following paragraphs describe the principal terms of the 2021 Plan:

Type of Awards. The plan permits the awards of options, restricted shares, restricted share units or other share-based awards.

Plan  Administration.  Our  board  of  directors  or  one  or  more  committees  or  subcommittees  of  the  board  of  directors,  or  the
Committee, will administer the plan. The Committee or the board of directors, as applicable, will determine the participants to receive
awards, the type and number of awards to be granted to each participant, and the terms and conditions of each grant.

Award Agreement.  Awards  granted  under  the  plan  are  evidenced  by  an  award  agreement  that  sets  forth  the  terms,  conditions  and
restrictions  for  each  award,  which  may  include  the  term  of  the  award,  the  provisions  applicable  in  the  event  that  the  grantee’s
employment or service terminates, and our authority to unilaterally or bilaterally amend, modify, suspend, cancel or rescind the award.

Eligibility. We may grant awards to our employees, directors and consultants of our company. However, we may grant options that

are intended to qualify as incentive share options only to our employees and employees of our subsidiaries.

Vesting Schedule. The options and restricted share units will vest according to the schedules specified in the plan, unless otherwise
determined by the plan administrator. The vesting schedule of other share-based awards should be determined by the plan administrator,
which is specified in the relevant award agreement.

Exercise  of  Options.  The  plan  administrator  determines  the  exercise  price  for  each  award,  which  is  stated  in  the  relevant  award
agreement.  Options  that  are  vested  and  exercisable  will  terminate  if  they  are  not  exercised  prior  to  the  time  as  the  plan  administrator
determines at the time of grant. However, the maximum exercisable term is ten years from the date of grant.

Transfer Restrictions. Awards may not be transferred in any manner by the participant other than in accordance with the exceptions
provided in the plan or the relevant award agreement or otherwise determined by the plan administrator, such as transfers by will or the
laws of descent and distribution.

Termination  and  Amendment  of  the  Plan.  Our  board  of  directors  has  the  authority  to  terminate,  amend  or  modify  the  plan  in

accordance with our articles of association.

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The following table summarizes, as of March 31, 2023, the number of ordinary shares underlying outstanding options and restricted
share units that we granted under the 2021 Plan, excluding awards that were forfeited, cancelled, exercised or vested after the relevant
grant date.

Name
Jingwu Zhang Zang

Weimin Tang

Gigi Qi Feng

Richard Cheng Li

Andrew Zhu

Richard Yeh

Ruyi He

Rong Shao

Other Grantees

Total

Notes:

Ordinary Shares
Underlying Options
and Restricted Share Exercise Price

Units

     (US$/Share)     

Date of Grant

     Date of Expiration

* (1)
*  
* (1)
*  
*
*  
* (1)
*  
*  
* (1)
*  
* (1)
*
* (1)
*  
* (1)
*  
* (1)
*  
*
*  
 5,894,234  

N/A  

 26.39
N/A
 26.39
N/A
 26.39
N/A
 26.39
 9.20
N/A
 9.20
N/A
 6.20
N/A
 31.23
N/A
 31.23
N/A
 26.39
 9.20
2.43

July 27, 2021  
July 27, 2021  

July 27, 2021 to February 1, 2023
July 27, 2021
July 27, 2021
July 27, 2021
July 27, 2021
July 27, 2021
March 4, 2022
March 4, 2022
March 4, 2022
January 4, 2023
January 4, 2023
June 11, 2021
June 11, 2021
June 11, 2021
June 11, 2021
July 27, 2021 to February 1, 2023
July 27, 2021
March 4, 2022
September 6, 2022

 —
July 27, 2031
 —
July 27, 2031
 —
July 27, 2031
 —
July 27, 2031
March 4, 2032
 —
March 4, 2032
 —
January 4, 2033
 —
June 11, 2031
 —
June 11, 2031
 —
July 27, 2031
March 4, 2032
  September 6, 2032

*

Less than 1% of our total outstanding shares.

(1) Represents restricted share units.

2022 Share Incentive Plan

In June 2022, we adopted 2022 Share Incentive Plan, which we refer to as the 2022 Plan, to promote the success and enhance the
value of our company. Under the 2022 Plan, the maximum aggregate number of ordinary shares which may be issued pursuant to all
awards is 13,148,594 ordinary shares; provided that the maximum number of ordinary shares may be issued pursuant to awards in the
form of restricted share units under the 2022 Plan should not exceed 5,478,577 ordinary shares. Notwithstanding the foregoing, if we
successfully complete extraordinary goals as approved by our board of directors, or such extraordinary goals are waived by our board of
directors, the maximum aggregate number of ordinary shares which may be issued pursuant to all awards is 15,340,034 ordinary shares;
provided that the maximum number of ordinary shares may be issued pursuant to awards in the form of restricted share units under the
2022  Plan  should  not  exceed  7,670,017  ordinary  shares.  The  maximum  aggregate  number  of  ordinary  shares  which  may  be  issued
pursuant  to  all  awards  under  the  2022  Plan  shall  be  proportionately  adjusted  in  the  event  of  any  share  dividend,  subdivision,
reclassification, recapitalization, split, reverse split, combination, consolidation or similar transactions. As of March 31, 2023, options to
purchase an aggregate of 6,672,944 ordinary shares and restricted share units to receive an aggregate of 4,883,452 ordinary shares under
the 2022 Plan had been granted and remained outstanding, excluding awards that were forfeited, cancelled, exercised or vested after the
relevant grant date.

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The following paragraphs describe the principal terms of the 2022 Plan:

Type of Awards. The plan permits the awards of options, restricted shares, restricted share units or other share-based awards.

Plan Administration. Our board of directors or any authorized officer to the extent that the Board’s powers or authority under the
Plan have been delegated to such officer will administer the plan. The board of directors or any authorized officer, as applicable, will
determine  the  participants  to  receive  awards,  the  type  and  number  of  awards  to  be  granted  to  each  participant,  and  the  terms  and
conditions of each grant.

Award Agreement.  Awards  granted  under  the  plan  are  evidenced  by  an  award  agreement  that  sets  forth  the  terms,  conditions  and
restrictions  for  each  award,  which  may  include  the  term  of  the  award,  the  provisions  applicable  in  the  event  that  the  grantee’s
employment or service terminates, and our authority to unilaterally or bilaterally amend, modify, suspend, cancel or rescind the award.

Eligibility. We may grant awards to our employees, directors, consultants and other service providers of our company that our board
of directors or any authorized officer deems appropriate. However, we may grant options that are intended to qualify as incentive share
options only to our employees and employees of our subsidiaries.

Vesting Schedule. The plan administrator determines conditions and the time or times at which options and restricted share units may
be exercised in whole or part. The vesting schedule of other share-based awards should be determined by the plan administrator, which is
specified in the relevant award agreement.

Exercise of Options. The plan administrator determines the price, conditions and time(s) for exercising each award, which is stated in
the relevant award agreement. Options that are vested and exercisable will terminate if they are not exercised prior to the time as the plan
administrator determines at the time of grant. However, the maximum exercisable term is ten years from the date of grant.

Transfer Restrictions. Awards may not be transferred in any manner by the participant other than in accordance with the exceptions
provided in the plan or the relevant award agreement or otherwise determined by the plan administrator, such as transfers by will or the
laws of descent and distribution.

Termination  and  Amendment  of  the  Plan.  Our  board  of  directors  has  the  authority  to  terminate,  amend  or  modify  the  plan  in

accordance with our articles of association.

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The following table summarizes, as of March 31, 2023, the number of ordinary shares underlying outstanding options and restricted
share units that we granted under the 2022 Plan, excluding awards that were forfeited, cancelled, exercised or vested after the relevant
grant date.

Name
Jingwu Zhang Zang

Andrew Zhu

Richard Yeh

Weimin Tang

John Hayslip

Gigi Qi Feng

Richard Cheng Li

Other Grantees

Total

Notes:

Ordinary Shares 
Underlying Options and

Exercise
Price

      Restricted Share Units     (US$/Share)     Date of Grant

* (1)
*
* (1)
*
* (1)
*
* (1)
*
* (1)
*
* (1)
*
* (1)
*

 3,087,267 (1)
 4,116,701
 11,556,396

N/A January 4, 2023
 2.41
January 4, 2023
N/A January 4, 2023
 2.41
January 4, 2023
N/A January 4, 2023
 6.20
January 4, 2023
N/A January 4, 2023
 2.41
January 4, 2023
N/A January 4, 2023
 2.41
January 4, 2023
N/A January 4, 2023
 2.41
January 4, 2023
N/A January 4, 2023
January 4, 2023
 2.41
N/A January 4, 2023
January 4, 2023
 2.41

 —  

     Date of Expiration
 —
January 4, 2033
 —
January 4, 2033
 —
January 4, 2033
 —
January 4, 2033
 —
January 4, 2033
 —
January 4, 2033
 —
January 4, 2033
 —
January 4, 2033
 —

*

Less than 1% of our total outstanding shares.

(1) Represents restricted share units.

C.   Board Practices.

As of the date of this annual report, our board of directors consists of 11 directors. A director is not required to hold any shares in our
company by way of qualification. Subject to the Nasdaq Global Market rules and disqualification by the chairman of the relevant board
meeting, a director may vote with respect to any contract, proposed contract or arrangement in which he is interested. A director who is
interested in a contract, proposed contract or arrangement should declare the nature of his or her interest at the earliest meeting of the
board at which it is practicable for him or her to do so, either specifically or by way of a general notice. The directors may exercise all
the  powers  of  our  company  to  borrow  money,  mortgage  its  undertaking,  property  and  uncalled  capital,  and  issue  debentures  or  other
securities whenever money is borrowed or as security for any obligation of our company or of any third party. None of our directors who
are not our executive officers has a service contract with us that provides for benefits upon termination of service.

Committees of the Board of Directors

We have established four committees under the board of directors: an audit committee, a compensation committee, a nominating and
corporate governance committee, and an environmental, social and governance (ESG) committee. We have adopted a charter for each of
the four committees. Each committee’s members and functions are described below.

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Audit Committee. Our audit committee consists of Mr. Conor Chia-hung Yang, Mr. Chun Kwok Alan Au and Mr. Shuai Chen. Mr.
Conor  Chia-hung  Yang  is  the  chairperson  of  our  audit  committee.  We  have  determined  that  each  of  Mr.  Conor  Chia-hung  Yang,  Mr.
Chun  Kwok  Alan  Au  and  Mr.  Shuai  Chen  satisfies  the  “independence”  requirements  of  Rule  5605(c)(2)  of  the  Nasdaq  Stock  Market
Rules and meets the independence standards under Rule 10A-3 under the Exchange Act. We have determined that Mr. Conor Chia-hung
Yang  qualifies  as  an  “audit  committee  financial  expert.”  The  audit  committee  will  oversee  our  accounting  and  financial  reporting
processes and the audits of the financial statements of our company. The audit committee is responsible for, among other things:

● appointing the independent auditors and pre-approving all auditing and non-auditing services permitted to be performed by the

independent auditors;

● reviewing with the independent auditors any audit problems or difficulties and management’s response;

● discussing the annual audited financial statements with management and the independent auditors;

● reviewing the adequacy and effectiveness of our accounting and internal control policies and procedures and any steps taken to

monitor and control major financial risk exposures;

● reviewing and approving all proposed related party transactions;

● meeting separately and periodically with management and the independent auditors; and

● monitoring compliance with our code of business conduct and ethics, including reviewing the adequacy and effectiveness of our

procedures to ensure proper compliance.

Compensation  Committee.  Our  compensation  committee  consists  of  Dr.  Jingwu  Zhang  Zang,  Mr.  Chun  Kwok  Alan  Au,
Dr. Pamela M. Klein, and Dr. Ruyi He. Dr. Jingwu Zhang Zang is the chairperson of our compensation committee. We have determined
that each of Mr. Chun Kwok Alan Au, Dr. Pamela M. Klein and Dr. Ruyi He satisfies the “independence” requirements of Rule 5605(a)
(2) of the Nasdaq Stock Market Rules. The compensation committee will assist the board in reviewing and approving the compensation
structure, including all forms of compensation, relating to our directors and executive officers. Our chief executive officer may not be
present at any committee meeting during which his compensation is deliberated. The compensation committee is responsible for, among
other things:

● reviewing and approving, or recommending to the board for its approval, the compensation for our chief executive officer and

other executive officers;

● reviewing and recommending to the board for determination with respect to the compensation of our directors who are not our

employees;

● reviewing periodically and approving any incentive compensation or equity plans, programs or similar arrangements; and

● selecting compensation consultant, legal counsel or other adviser only after taking into consideration all factors relevant to that

person’s independence from management.

Nominating and Corporate Governance Committee. Our nominating and corporate governance committee consists of Mr. Wei Fu,
Mr. Chun Kwok Alan Au, Mr. Conor Chia-hung Yang and Dr. Rong Shao. Mr. Wei Fu is the chairperson of our nominating and corporate
governance  committee.  We  have  determined  that  each  of  Mr.  Chun  Kwok  Alan  Au,  Mr.  Conor  Chia-hung  Yang  and  Dr.  Rong  Shao
satisfies  the  “independence”  requirements  of  Rule  5605(a)(2)  of  the  Nasdaq  Stock  Market  Rules.  The  nominating  and  corporate
governance committee will assist the board of directors in selecting individuals qualified to become our directors and in determining the
composition  of  the  board  and  its  committees.  The  nominating  and  corporate  governance  committee  is  responsible  for,  among  other
things:

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● selecting and recommending to the board nominees for election by the shareholders or appointment by the board;

● reviewing annually with the board the current composition of the board with regards to characteristics such as independence,

knowledge, skills, experience and diversity;

● making recommendations on the frequency and structure of board meetings and monitoring the functioning of the committees

of the board; and

● advising the board periodically with regards to significant developments in the law and practice of corporate governance as well
as our compliance with applicable laws and regulations, and making recommendations to the board on all matters of corporate
governance and on any corrective action to be taken.

Environmental,  Social  and  Governance  Committee.  Our  environmental,  social  and  governance  committee  consists  of  Dr.  Andrew
Zhu,  Mr.  Chun  Kwok  Alan  Au  and  Dr.  Rong  Shao.  Mr.  Chun  Kwok  Alan  Au  is  the  chairman  of  our  environmental,  social  and
governance  committee.  We  have  determined  that  each  of  Mr.  Chun  Kwok  Alan  Au  and  Dr.  Rong  Shao  satisfies  the  “independence”
requirements of Rule 5605(a)(2) of the Nasdaq Stock Market Rules. In addition, we will also establish an ESG working group to address
daily ESG workflows. The environmental, social and governance committee is responsible for, among other things:

● supervising the ESG strategies, policies, long-term sustainability objectives and risks.

Duties of Directors

Under Cayman Islands law, our directors owe fiduciary duties to our company, including a duty of loyalty, a duty to act honestly, and
a duty to act in what they consider in good faith to be in our best interests. Our directors must also exercise their powers only for a proper
purpose.  A  director  must  exercise  the  skill  and  care  of  a  reasonably  diligent  person  having  both  (a)  the  general  knowledge,  skill  and
experience that may reasonably be expected of a person in the same position (an objective test), and (b) if greater, the general knowledge,
skill and experience that that director actually possesses (a subjective test). In fulfilling their duty of care to us, our directors must ensure
compliance with our memorandum and articles of association, as amended from time to time, and the class rights vested thereunder in the
holders of the shares. Our company has the right to seek damages if a duty owed by our directors is breached. A shareholder may in
certain limited circumstances have the right to seek damages in our name if a duty owed by the directors is breached.

Our  board  of  directors  has  all  the  powers  necessary  for  managing,  and  for  directing  and  supervising,  our  business  affairs.  The

functions and powers of our board of directors include:

● convening shareholders’ annual general meetings and reporting its work to shareholders at such meetings;

● declaring dividends and other distributions;

● appointing officers and determining the term of office of the officers;

● exercising the borrowing powers of our company and mortgaging the property of our company; and

● approving the transfer of shares in our company, including the registration of such shares in our share register.

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Terms of Directors and Officers

Our  directors  may  be  elected  by  an  ordinary  resolution  of  our  shareholders.  Alternatively,  our  board  of  directors  may,  by  the
affirmative  vote  of  a  simple  majority  of  the  directors  present  and  voting  at  a  board  meeting  appoint  any  person  as  a  director  to  fill  a
casual vacancy on our board or as an addition to the existing board. Our directors (other than independent directors) are not automatically
subject to a term of office and hold office until such time as they are removed from office by an ordinary resolution of our shareholders.
Our independent directors hold office until the earlier of (i) the date on which the independent director ceases to be a member of the
board for any reason; (ii) the date of termination of an independent director’s director agreement, which may be terminated by either the
independent director or by us with a 30-day advance written notice or such other shorter period as mutually agreed; or (iii) three years
from  the  effective  date  of  the  director  agreement,  subject  to  the  terms  of  our  current  memorandum  and  articles  of  association  of  our
company. In addition, a director will cease to be a director if he or she (i) becomes bankrupt or makes any arrangement or composition
with  his  or  her  creditors;  (ii)  dies  or  is  found  to  be  or  becomes  of  unsound  mind;  (iii)  resigns  his  or  her  office  by  notice  in  writing;
(iv) without special leave of absence from our board, is absent from meetings of our board for three consecutive meetings and our board
resolves that his or her office be vacated; or (v) is removed from office pursuant to any other provision of our articles of association.

Our officers are appointed by and serve at the discretion of the board of directors, and may be removed by our board of directors.
Under our articles of association, the board of directors may appoint one or more of their number to the office of managing director upon
like terms, but any such appointment should ipso facto terminate if any managing director ceases for any cause to be a director, or if our
company by ordinary resolution of shareholders resolves that his tenure of office be terminated. In addition, the board of directors may
appoint any natural person or corporation to be a secretary (and if need be an assistant secretary or assistant secretaries) who should hold
office for such term, at such remuneration and upon such conditions and with such powers as they think fit. Any secretary or assistant
secretary so appointed by the board of directors may be removed by the board of directors or by ordinary resolution of shareholders.

Board Diversity

Board Diversity Matrix (As of March 31, 2023)

Country of Principal Executive Offices:
Foreign Private Issuer
Disclosure Prohibited Under Home Country Law
Total Number of Directors

Part I: Gender Identity
Directors
Part II: Demographic Background
Underrepresented Individual in Home Country Jurisdiction
LGBTQ+
Did Not Disclose Demographic Background

     People’s Republic of China

Yes
No
11

     Female

     Male

    Non-Binary     Disclose Gender

Did Not

3

8

 —  

 —

 —
 —
 —

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D.   Employees.

We  had  228,  378  and  318  employees  as  of  December  31,  2020,  2021  and  2022,  respectively.  As  of  December  31,  2022,  272
employees  were  located  in  China  and  46  were  located  outside  China.  The  table  below  sets  forth  our  employees  by  function  as  of
December 31, 2022:

Management
Research and development
Chemistry, manufacturing and controls
General and administrative
Business and corporate development
Commercial
Total

Number

 11
 190
 31
 62
 9
 15
 318

We recruit our employees primarily through recruitment websites, recruiters, internal referrals and job fairs. Approximately 28% of
total employees were hired through internal referrals. We recruit our employees based on their qualification and potential. We promote
culture diversity, and our employees come from the United States, Taiwan and South Korea, in addition to mainland China. We prohibit
any  form  of  discrimination  (including,  but  not  limited  to,  employment,  career  development,  salary,  and  benefits)  on  the  basis  of  an
employees’  gender,  race,  age,  physical  condition,  sexual  orientation,  marital  status,  or  disability,  so  as  to  ensure  a  diverse  and  fair
corporate  culture.  We  aim  to  be  a  role  model  in  promoting  female  business  leadership  in  the  biotech  industry.  We  have  undertaken
multiple initiatives to encourage female leadership, including launching the I-Mab Women’s Leadership Council (WLC) in July 2020.
Approximately  71%  of  our  employees  are  female,  of  which  59%  hold  a  master’s  degree  or  above,  while  over  25%  of  our  board  of
directors are female. We are carrying out a series of female leadership development programs committed to women’s career and personal
development.

We  offer  competitive  salaries,  benefits,  and  additional  incentive  to  its  employees.  Employee  compensation  and  benefits  include
position-specific  salary,  bonus  and  allowance,  statutory  insurance,  and  housing  employee  benefit  funds  (for  those  in  China),  statutory
holidays, benefits and vacations, etc. In addition, we purchase additional commercial insurance for employees’ underaged children, as
well  as  a  series  of  internal  morale  boosting  incentive  programs.  We  work  to  reward  employees  for  exceptional  performance.  Our
employee awards include Project Awards, Quarterly Stars, Management Awards, etc., with the goal of creating a culture of recognition.

We  provide  new  hire  training  to  our  employees  and  periodic  on-the-job  training  to  enhance  the  skills  and  knowledge  of  our
employees. We invest in employees’ career development and provide them opportunities to keep updating their skills and knowledge.
Our  training  system  includes  induction  training  for  new  employees,  training  on  general  knowledge,  professional  skills  training,  and
leadership  training,  among  which,  leadership  training  focuses  on  improving  employees’  knowledge  and  ability  in  compliance
management,  drug  quality  control,  business  audit,  financial  standard  procedures,  as  well  as  female  leadership  development.  We
encourage  our  employees  to  develop  various  training  courses,  and  grade  the  content  setting,  applicability,  practicability,  and  lecturer
quality of the courses, to continuously improve them through collecting and addressing feedbacks. We have not established a labor union.
We have not experienced any material labor disputes or strikes that may have a material and adverse effect on our business, financial
condition or results of operations.

We enter into standard confidentiality and employment agreements with all of our key management and research staff. The contracts
with our key personnel typically include a standard non-compete agreement that prohibits the employee from competing with us, directly
or indirectly, during his or her employment and for one year after the termination of his or her employment. The contracts also typically
include undertakings regarding assignment of innovations and discoveries made during the course of his or her employment. For further
details  regarding  the  terms  of  confidentiality  and  employment  agreements  with  our  key  management,  see  “Item  6.  Directors,  Senior
Management and Employees.”

E.   Share Ownership.

The following table sets forth information with respect to the beneficial ownership of our ordinary shares as of March 31, 2023 by:

● each of our directors and executive officers; and

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● each person known to us to own beneficially 5% or more of our total outstanding shares.

Percentage  of  beneficial  ownership  is  based  on  191,911,402  total  outstanding  ordinary  shares  as  of  March  31,  2023  (excluding
2,096,836 ordinary shares issued to our depositary bank for bulk issuance of ADSs reserved for future issuances upon the exercising or
vesting of awards granted under our share incentive plans).

Beneficial  ownership  is  determined  in  accordance  with  the  rules  and  regulations  of  the  SEC.  In  computing  the  number  of  shares
beneficially owned by a person and the percentage ownership of that person, we have included shares that the person has the right to
acquire within 60 days, including through the exercise of any option, warrant or other right or the conversion of any other security. These
shares, however, are not included in the computation of the percentage ownership of any other person.

Directors and Executive Officers:**
Jingwu Zhang Zang (1)
Andrew Zhu
Richard Yeh
Wei Fu (2)
Lan Kang
Shuai Chen
Conor Chia-hung Yang
Pamela M. Klein
Ruyi He
Rong Shao
Weimin Tang
John Hayslip
Gigi Qi Feng
Richard Cheng Li
All Directors and Executive Officers as a Group
Other Principal Shareholders:
C-Bridge entities (2)
Hillhouse entities (3)
GIC Private Limited (4)
Infini Capital (5)

Notes:

Ordinary Shares
Beneficially Owned

Number

%

 10,689,505  
*  
*  
 29,448,395  
 —  
*  
*  
*  
*  
*  
*  
 —  
*  
*  
 41,323,739  

29,448,395
16,520,560
12,131,203
11,509,674

 5.5 %
*
*
 15.3 %
 —
*
*
*
*
*
*
 —
*
*
 21.4 %

15.3
8.6
6.3
6.0

*

Less than 1% of our total ordinary shares on an as-converted basis outstanding as of March 31, 2023.

** Except as otherwise indicated below, the business address of our directors and executive officers is 55th Floor, New Bund Center,
555  West  Haiyang  Road,  Pudong  District,  Shanghai,  China.  The  business  address  of  Wei  Fu  is  Suite  3306-3307,  Two  Exchange
Square,  8  Connaught  Place,  Central,  Hong  Kong.  The  business  address  of  Lan  Kang  is  Floor  62,  Plaza  66,  Tower  1,  1266  West
Nanjing  Road,  Shanghai,  China.  The  business  address  of  Mr.  Shuai  Chen  is  25/F,  Hexa  International  Plaza,  No.9  Chaoyangmen
North Street, Dongcheng District, Beijing, China. The business address of Ruyi He is Unit 1506, Central Tower, China Overseas
Plaza, No.8 Guanghua Dongli, Chaoyang District, Beijing, China. The business address of Rong Shao is No. 24 Tongjiaxiang, Gulou
District, Nanjing, Jiangsu Province, China. The business address of Chun Kwok Alan Au is 22 Pottinger Street, Central, Hong Kong.
The business address of Conor Chia-hung Yang is 2/F, East Tower, Qihao Beijing, No. 8 Xinyuan South Road, Chaoyang District,
Beijing, China. The business address of Pamela M. Klein is 231 Fort Mason, San Francisco, California 94123, the United States.

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(1) Represents (i) 3,235,161 ordinary shares directly held by Mabcore Limited, a British Virgin Islands company, (ii) 207,765 ordinary
shares  held  by  Dr.  Zang  through  The  2019  Hasselt  Revocable  Trust,  (iii)  5,962,625  ordinary  shares,  including  114,890  ordinary
shares in the form of ADSs, held by Dr. Zang through The Doctor Zang 2020 Dynasty Trust, and (iv) 684,416 ordinary shares in the
form of ADSs and 599,538 ordinary shares issuable upon the exercise of options exercisable and the vesting of restricted share units
within 60 days after March 31, 2023 held by Dr. Zang. Dr. Zang, through himself and The Jingwu Zhang Zang 2018 Irrevocable
Family  Trust,  owns  a  55.6%  equity  interest  in  Mabcore  Limited.  Three  other  individuals  own  the  remaining  equity  interest  in
Mabcore Limited. Dr. Zang is the sole director of Mabcore Limited. The Jingwu Zhang Zang 2018 Irrevocable Family Trust was
established under the laws of New York and is co-managed by Ms. Zang, as the trustee, and by Dr. Zang, as the settlor. Pursuant to
the currently effective memorandum and articles of association of Mabcore Limited, Dr. Zang, as the sole director, has the power to
direct the actions of Mabcore Limited, including the voting and disposal of Mabcore Limited’s shares in I-Mab. Accordingly, Dr.
Zang is deemed to indirectly own all of the 3,235,161 ordinary shares held by Mabcore Limited, while three other individuals are
only entitled to their respective pro-rata economic interest in Mabcore Limited. The registered address of Mabcore Limited is Trinity
Chambers, P.O. Box 4301, Road Town, Tortola, British Virgin Islands. The 2019 Hasselt Revocable Trust was established under the
laws of the State California and is co-managed by Dr. Zang and Ms. Zang (Dr. Zang’s spouse), each as a settlor and a trustee. The
Doctor Zang 2020 Dynasty Trust was established under the laws of the State of California and is co-managed by Dr. Zang, as the
settlor and the investment trustee, and by Ms. Zang, as the trustee.

(2) Represents  (i)  1,583,280  ADSs  and  10  ordinary  shares  directly  held  by  IBC  Investment  Seven  Limited,  a  Hong  Kong  limited
liability company, (ii) 2,423,720 ADSs and 4 ordinary shares directly held by CBC SPVII LIMITED, a Hong Kong limited liability
company,  (iii)  5,123,540  ADSs  and  22  ordinary  shares  directly  held  by  CBC  Investment  I-Mab  Limited,  a  British  Virgin  Islands
limited  liability  company,  (iv)  1,030,230  ADSs  and  17  ordinary  shares  directly  held  by  C-Bridge  II  Investment  Ten  Limited,  a
British Virgin Islands limited liability company, and (v) 6,078,571 ordinary shares directly held by Everest. IBC Investment Seven
Limited,  CBC  SPVII  LIMITED,  CBC  Investment  I-Mab  Limited,  C-Bridge  II  Investment  Ten  Limited,  Everest  are  collectively
referred  to  as  the  C-Bridge  entities.  CBC  Investment  I-Mab  Limited,  C-Bridge  II  Investment  Ten  Limited  and  C-Bridge  II
Investment  Thirteen  Limited  are  controlled  by  C-Bridge  Healthcare  Fund  II,  L.P.,  whose  general  partner  is  C-Bridge  Healthcare
Fund GP II, L.P., and its general partner is C-Bridge Capital GP, Ltd. CBC SPVII Limited and IBC Investment Seven Limited are
controlled  by  I-Bridge  Healthcare  Fund,  L.P.,  whose  general  partner  is  I-Bridge  Healthcare  GP,  L.P.,  and  its  general  partner  is  I-
Bridge  Capital  GP,  Ltd.,  which  is  indirectly  controlled  by  C-Bridge  Capital  GP,  Ltd.  Mr.  Wei  Fu  is  the  sole  director  of  C-Bridge
Capital GP, Ltd. Everest is a public company listed on the Hong Kong Stock Exchange and controlled by funds which are under
common control of the C-Bridge group, which, in turn, is controlled by Mr. Wei Fu. Information regarding beneficial ownership is
reported  as  of  December  31,  2022,  based  on  the  information  contained  in  the  Schedule  13G/A  filed  by  the  C-Bridge  entities  on
February 15, 2023. Please see the Schedule 13G/A filed by the C-Bridge entities with SEC on February 15, 2023 for information
relating  to  the  C-Bridge  entities.  The  business  address  of  each  of  C-Bridge  entities  is  Suite  3306-3307,  Two  Exchange  Square,  8
Connaught Place, Central, Hong Kong.

(3) Represents  (i)  7,182,850  ADSs  (representing  16,520,555  ordinary  shares)  held  by  funds  managed  by  HHLR  Advisors,  Ltd.,  or
HHLR,  an  exempted  Cayman  Islands  company,  and  (ii)  5  ordinary  shares  held  by  a  fund  managed  by  Hillhouse  Investment
Management, Ltd., or HIM, an exempted Cayman Islands company. HHLR acts as the sole investment manager of YHG Investment,
L.P., or YHG, and the sole management company of HHLR Fund, L.P., or HHLR Fund. HHLR is hereby deemed to be the beneficial
owner of, and to control the voting and investment power of, the voting ordinary shares held by YHG and HHLR Fund. HIM acts as
the sole management company of Hillhouse Fund IV, L.P., or Fund IV. Fund IV owns HH IMB Holdings Limited, or HH IMB. HIM
is hereby deemed to be the beneficial owner of, and to control the voting and investment power of, the voting ordinary shares held
by HH IMB. HH IMB, YHG and HHLR Fund are collectively referred to as the Hillhouse entities. The directors of each of HHLR
and HIM are Colm O'Connell and Bridget Kidner. Mr. O'Connell and Ms. Kidner are employees of each of HHLR and HIM and Mr.
Lei Zhang is the Founder and President of each of HHLR and HIM. Information regarding beneficial ownership is reported as of
September 23, 2021, based on the information contained in the Schedule 13D/A jointly filed by HHLR and HIM on September 27,
2021. Please see the Schedule 13D/A jointly filed by HHLR and HIM with SEC on September 27, 2021 for information relating to
the  Hillhouse  entities,  HHLR  and  HIM.  The  business  address  of  each  of  HHLR  and  HIM  is  Office  #122,  Windward  3  Building,
Regatta Office Park, West Bay Road, Grand Cayman, Cayman Islands, KY1-9006.

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(4) Represents  5,274,436  ADSs  (representing  12,131,203  ordinary  shares)  held  by  GIC  Private  Limited  (“GIC”),  a  Singapore  fund
manager. Cliff Investment Pte. Ltd. shares the power to vote and the power to dispose of 5,538,471 ordinary shares (represented by
2,408,031 ADSs) held directly by it with GIC Special Investments Private Limited (“GIC SI”) and GIC. GIC SI is wholly owned by
GIC  and  is  the  private  equity  investment  arm  of  GIC.  Gamsino  Pte.  Ltd.  shares  the  power  to  vote  and  the  power  to  dispose  of
6,592,732  ordinary  shares  (represented  by  2,866,405  ADSs)  held  directly  by  it  with  GIC  Asset  Management  Private  Limited
(“GAM”) and GIC. GAM is wholly owned by GIC and is the public equity investment arm of GIC. GIC is a fund manager and only
has  two  clients  –  the  Government  of  Singapore  (“GoS”)  and  Monetary  Authority  of  Singapore  (“MAS”).  Under  the  investment
management  agreement  with  GoS,  GIC  has  been  given  the  sole  discretion  to  exercise  the  voting  rights  attached  to,  and  the
disposition of, any shares managed on behalf of GoS. GIC is wholly owned by the GoS and was set up with the sole purpose of
managing  Singapore’s  foreign  reserves.  The  GoS  disclaims  beneficial  ownership  of  such  shares.  Information  regarding  beneficial
ownership is reported as of December 31, 2022, based on the information contained in the Schedule 13G/A filed by GIC Private
Limited  on  February  7,  2023.  Please  see  the  Schedule  13G/A  filed  by  GIC  Private  Limited  with  SEC  on  February  7,  2023  for
information relating to GIC Private Limited. The business address of GIC Private Limited is 168 Robinson Road, #37-01 Capital
Tower, Singapore 068912.

(5) Represents  5,004,206  ADSs  held  by  Infini  Master  Fund,  an  exempted  company  incorporated  in  the  Cayman  Islands  with  limited
liability. Infini Capital Management Limited, a private company limited by shares incorporated in Hong Kong, serves as investment
manager  to  Infini  Master  Fund  and  has  discretionary  and  voting  power  over  the  shares  held  by  Infini  Master  Fund.  Accordingly,
Infini Capital Management Limited may be deemed to be the beneficial owner of 5,004,206 ADSs which are held by Infini Master
Fund.  Infini  Capital  Management  Limited  disclaims  beneficial  ownership  of  the  ADSs  held  by  Infini  Master  Fund,  except  to  the
extent of any pecuniary interest therefrom. Information regarding beneficial ownership is reported as of June 7, 2022, based on the
information contained in the Schedule 13G jointly filed by Infini Master Fund and Infini Capital Management Limited on June 13,
2022. Please see the Schedule 13G jointly filed by Infini Master Fund and Infini Capital Management with SEC on June 13, 2022
for information relating to Infini Master Fund and Infini Capital Management Limited. The address of the principal business office
of  the  Infini  Master  Fund  is  c/o  Walkers  Corporate  Limited,  Cayman  Corporate  Centre,  27  Hospital  Road,  George  Town,  Grand
Cayman, KY1-9008, Cayman Islands.

To  our  knowledge,  as  of  March  31,  2023,  three  of  our  ordinary  shares  were  held  by  three  record  holders  in  the  United  States
(including  2,096,836  ordinary  shares  issued  to  our  depositary  bank  for  bulk  issuance  of  ADSs  reserved  for  future  issuances  upon  the
exercising  or  vesting  of  awards  granted  under  our  share  incentive  plans),  representing  approximately  85.8%  of  our  total  outstanding
shares. One of the U.S. holders is Citibank, N.A., the depositary of our ADS program. The number of beneficial owners of our ADSs in
the United States is likely to be much larger than the number of record holders of our ordinary shares in the United States.

F.   Disclosure of a Registrant’s Action to Recover Erroneously Awarded Compensation

Not applicable.

ITEM 7. MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS

A.   Major Shareholders

Please refer to “Item 6. Directors, Senior Management and Employees—E. Share Ownership.”

B.   Related Party Transactions

Shareholders Agreement

In July 2019, we entered into our fourth amended and restated shareholders agreement with our shareholders.

The shareholders agreement provides for certain special rights, including right of first refusal, co-sale rights, preemptive rights and
contains  provisions  governing  the  board  of  directors  and  other  corporate  governance  matters.  Those  special  rights,  as  well  as  the
corporate governance provisions, automatically terminated upon the completion of our initial public offering.

Pursuant  to  our  shareholders  agreement,  we  have  granted  certain  registration  rights  to  our  shareholders.  Set  forth  below  is  a

description of the registration rights granted under the agreement.

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Demand Registration Rights. At any time after the earlier of (i) December 31, 2020, or (ii) six months following the effectiveness of
a registration statement for a firm underwritten public offering of our ordinary shares on The Stock Exchange of Hong Kong Limited, the
New  York  Stock  Exchange,  the  Nasdaq  Stock  Market  or  other  internationally  recognized  securities  exchange,  with  an  offering  price
(exclusive of underwriting commissions and expenses) that reflects a market capitalization (immediately prior to the public offering) of
not less than US$1.0 billion, the holders of a majority of the registrable securities then issued and outstanding may request in writing that
we  file  a  registration  statement  covering  the  registration  of  at  least  20%  of  the  registrable  securities  (or  any  lesser  percentage  if  the
anticipated gross receipts from the offering are to exceed US$5.0 million). Upon such a request, we should, within ten business days of
the  receipt  of  such  written  request,  give  written  notice  of  such  request  to  all  holders,  and  use  our  best  efforts  to  effect,  as  soon  as
practicable,  the  registration  of  all  registrable  securities  that  the  holders  request  to  be  registered  and  included  in  such  registration  by
written  notice  given  by  such  holders  to  us  within  20  days  after  receipt  of  the  request  notice.  We  have  the  right  to  defer  filing  of  a
registration statement for a period of not more than 90 days after receipt of the request of the initiating holders if our board of directors
determines in good faith that filing of such registration statement at such time will be materially detrimental to us or our shareholders, but
we cannot exercise the deferral right more than once during any twelve-month period and cannot register any other securities during such
twelve-month period. We are not obligated to effect any such registration if we have, within the six-month period preceding the date of
such  request,  already  effected  a  registration.  We  are  not  obligated  to  effect  more  than  three  demand  registrations.  This  demand
registration right is subject to the customary exclusion right of the underwriters.

Registration on Form F-3. If we qualify for registration on Form F-3, any holder or holders of a majority of all registrable securities
then  issued  and  outstanding  may  request  in  writing  that  we  effect  a  registration  on  Form  F-3  (or  an  equivalent  registration  in  a
jurisdiction outside of the U.S.). We should promptly give written notice of the proposed registration and as soon as practicable, effect
such  registration  within  20  days  after  we  provide  the  aforesaid  written  notice.  The  holders  are  entitled  to  an  unlimited  number  of
registrations on Form F-3 so long as such registration offerings are in excess of US$500,000. We are not obligated to effect any such
registration  if  we  have,  within  the  six-month  period  preceding  the  date  of  such  request,  already  effected  a  registration  other  than  a
registration from which registrable securities of the holders have been excluded, or if we would be required to qualify to do business or
to execute a general consent to service of process in effecting such registration in any particular jurisdiction.

Piggyback Registration Rights.  If  we  propose  to  register  for  a  public  offering  of  our  securities  (other  than  registration  statements
relating to demand registration, Form F-3 registration, any employee benefit plan or a corporate reorganization), we should give written
notice of such registration to all holders of registrable securities at least 30 days prior to filing any registration statement and afford each
such holder an opportunity to be included in such registration. If a holder decides not to include all of its registrable securities in any
registration statement thereafter filed by us, such holder will nevertheless continue to have the right to include any registrable securities
in any subsequent registration statement or registration statements as may be filed by us, subject to certain limitations. This piggyback
registration right is subject to the customary exclusion right of the underwriters.

Expenses of Registration.

We will bear all registration expenses. Each holder, however, should bear its proportionate share of all of the underwriting discounts
and  selling  commissions  applicable  to  the  sale  of  registrable  securities  or  other  amounts  payable  to  underwriter(s)  or  brokers  in
connection with such offering by the holders.

Termination of Obligations.

Our  obligations  to  effect  any  demand,  Form  F-3  or  piggyback  registration  will  terminate  upon  the  earlier  of  (i)  the  tenth
anniversary of the initial public offering (ii) after the initial public offering, the date on which such shareholder is eligible to sell all of the
registrable securities held by it under Rule 144 within any 90-day period without volume limitations.

Deed of Undertaking

In December 2019, a deed of undertaking was made by our company and a few shareholders of our company, each as a warrantor, to
the other shareholders of our company (other than the shareholder warrantors), each as a warrantee, pursuant to which each warrantor
represents and warrants to each warrantee that it has provided each warrantee with all information and documents in connection with the
initial public offering of our company that has the effect of establishing rights or otherwise benefiting any shareholder in a manner more
favorable  than  the  corresponding  terms  applicable  to  the  relevant  warrantee  in  relation  to  the  initial  public  offering  of  our  company
(collectively, the “More Favorable Arrangements”). Pursuant to the deed of undertaking, until the fifth anniversary of the completion of
our initial public offering, we will not directly or indirectly enter into any agreements or arrangements or modify, amend or waive any
existing agreements or arrangements of any kind that would have the effect of establishing the More Favorable Arrangements; provided
that it will be allowed to adopt or modify any employee incentive plans and grant options to the management or any employee of our
company after our initial public offering pursuant to such plans and in accordance with the then effective memorandum and articles of
association and the applicable listing rules for the purpose of rewarding their bona fide services.

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Subscription Agreement with Hillhouse Entities

In  September  2020,  we  entered  into  a  Subscription  Agreement  with  the  Hillhouse  Entities,  as  amended  by  an  amendment  to
Subscription Agreement entered into between Hillhouse Entities and our company in December 2020. The Subscription Agreement, as
amended,  provides  for  (i)  certain  investors’  rights,  such  as  registration  rights,  board  representation  rights  and  anti-dilution  rights  and
(ii) lock-up and other transfer restrictions. Set forth below is a description of certain rights and restrictions thereof.

Mandatory Registration after Initial Closing (September 11, 2020). We agree to file with the SEC a registration statement to register
the  resale  of  Hillhouse  Entities’  registrable  securities,  which  include  ordinary  shares  issued  and  issuable  upon  exercise  of  Investor
Warrants under the Subscription Agreement, on Form F-3 or Form F-1, as applicable. We should have the relevant registration statement
declared effective by the SEC no later than ninety (90) calendar days after September 11, 2020, which period could be extended to one
hundred and twenty (120) calendar days if the SEC reviews and comments on the registration statement. However, if the SEC prevents
inclusion  of  the  registrable  securities  in  the  registration  statement  pursuant  to  limitations  under  Rule  415  of  the  Securities  Act,  the
number of registrable securities to be registered for each selling shareholder named in the registration statement should be reduced pro
rata among all such selling shareholders. We should maintain the continuous effectiveness of the registration statement for a period of
ninety  (90)  days  after  its  effectiveness  or  such  shorter  period  upon  which  the  Hillhouse  Entities  have  notified  us  that  their  registrable
securities have actually been sold.

Mandatory Registration after Subsequent Closing (December 17, 2020). With respect to the registrable securities then held by the
Hillhouse  Entities  which  have  not  been  previously  registered  and  sold,  we  agree  to  file  a  prospectus  supplement  or  a  registration
statement to register the resale of such registrable securities on a Form F-3 or Form F-3ASR registration statement (or, if Form F-3 or
Form  F-3ASR  is  not  then  available  to  us,  on  Form  F-1  or  such  other  form  of  registration  statement  as  is  then  available  to  effect  a
registration  for  resale  of  such  registrable  securities),  and  have  such  registration  statement  declared  effective  by  the  SEC  no  later  than
(a) the ten (10) business days after the later of (i) the first date when we become eligible to use registration statement on F-3, or (ii) the
expiration  of  the  lock-up  period  with  respect  to  the  subsequent  closing,  or  forty-five  (45)  calendar  days  after  such  lock-up  period
expiration date if the SEC reviews and comments on the registration statement. We should maintain the effectiveness of such registration
statement for a period ending on the date the registrable securities registered thereon have ceased to be registrable securities.

Demand Registration Rights. Upon written request from the Hillhouse Entities at any time after we have effected two registration
statements abovementioned, with respect to the registrable securities then held by the Hillhouse Entities, and in no event later than the
forty-five (45) calendar days following the delivery of such request, we should file a prospectus supplement or a registration statement to
register the resale of such registrable securities on a Form F-3 or Form F-3ASR registration statement (or, if Form F-3 or Form F-3ASR
is not then available to us, on Form F-1 or such other form of registration statement as is then available to effect a registration for resale
of  such  registrable  securities),  have  such  registration  statement  declared  effective,  and  maintain  the  effectiveness  of  such  registration
statement  for  a  period  ending  on  the  date  the  registrable  securities  registered  thereon  have  ceased  to  be  registrable  securities.  If  the
registrable  securities  are  offered  by  means  of  an  underwritten  offering,  and  we  or  the  underwriters  determine  that  marketing  factors
require  a  limitation  of  the  number  of  securities  to  be  underwritten,  the  number  of  registrable  securities  that  may  be  included  in  the
underwriting should be reduced and allocated (i) first, to us and each holder in accordance with the terms of the Shareholders Agreement;
(ii) second, to investors in the private placements entered into in September 2020 (including the Hillhouse Entities) requesting inclusion
of their registrable securities in such registration statement on a pro rata basis based on the total number of registrable securities then held
by each such investor; and (iii) third, to other holders of registrable securities, if any.

Suspension of Registration. We may suspend the use of any registration statement for a period not exceeding thirty (30) consecutive
trading days, if we (i) determine that we would be required to make disclosure of material information in the registration statement that
we have a bona fide business purpose for preserving as confidential; (ii) determine that we must amend or supplement the registration
statement so that it does not include an untrue statement of a material fact or omit to state a material fact; or (iii) have experienced or are
experiencing some other material non-public event, the disclosure of which at such time would adversely affect us. However, we cannot
exercise  the  suspension  right  more  than  once  in  any  twelve  (12)  month  period  and  may  not  register  any  other  securities  during  such
suspension period.

Expenses.  We  will  bear  all  registration  expenses,  except  any  (i)  portions  of  fees  and  disbursements  of  counsel  for  the  Hillhouse
Entities  exceeding  US$30,000,  (ii)  underwriting  discounts  and  selling  commissions  applicable  to  sale  of  registrable  securities,  and
(iii) fees payable pursuant to the deposit agreement.

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Ranking of Registration Rights.  Registration  rights  granted  to  the  Hillhouse  Entities  should  not  be  senior  to,  or  on  a  parity  with,

those granted to holders under the Shareholders Agreement.

Board Representation Rights. As long as the Hillhouse Entities continue to jointly beneficially own at least five percent (5.0%) of
our total issued and outstanding share capital, it is entitled to nominate and maintain one representative to our board of directors. We
should cause an individual jointly designated by the Hillhouse Entities to be appointed as the investor director with immediate effect no
later than the fifteenth (15th) business day after receiving written notice from Hillhouse Entities or such later date on which we receive
necessary shareholder approval.

Lock-up. The Hillhouse Entities should not dispose of any of the ordinary shares purchased by Hillhouse Entities on the applicable
initial  or  subsequent  closing  date  within  a  90-day  period  following  September  11,  2020  or  a  subsequent  closing  date  set  forth  in  the
subscription agreement to any person other than affiliates of the Hillhouse Entities, who should be bound by the Hillhouse Entities’ lock-
up  obligations  for  the  balance  of  each  applicable  lock-up  period.  Each  of  the  Hillhouse  Entities  and  their  affiliates  may  directly  or
indirectly,  place  any  charge,  mortgage,  lien,  pledge,  restrictions,  security  interest  or  other  encumbrance  in  respect  of  the  lock-up
securities in connection with such Hillhouse Entity’s (or any of its affiliates’) margin loans, collars, derivative transactions or other such
downside protection transactions to be entered into on or after the date of the subscription agreement.

Anti-dilution rights. We agree not to issue, offer, sell, or grant any option or right to purchase any new securities, without the prior
written consent of the Hillhouse Entities, (i) during the 90-day period following each closing date; or (ii) at an effective purchase price
per share lower than the purchase price under the Subscription Agreement with Hillhouse Entities during the 90-day period commencing
from the expiration of each lock-up period.

Employment Agreements and Indemnification Agreements

See  “Item  6.  Directors,  Senior  Management  and  Employees—A.  Directors  and  Senior  Management  —  Employment  Agreements

and Indemnification Agreements.”

Share Option Grants

See “Item 6. Directors, Senior Management and Employees—B. Compensation—Share Incentive Plans.”

Other Transactions with Related Parties

In January 2018, we entered into a collaboration agreement with Everest, an affiliate of C-Bridge Capital Investment Management,
Ltd., whereby both parties agreed to collaborate on programs to co-develop MorphoSys’ proprietary CD38 antibody for all indications in
hematologic oncology and commercialize the CD38 product in mainland China, Hong Kong, Macau and Taiwan. On November 4, 2019,
we and Everest Medicines Limited terminated the collaboration agreement (including all the supplements and amendments thereto) with
respect to the co-development and commercialization of felzartamab in Greater China.

In  August  2021,  we  entered  into  a  project  development  service  agreement  with  I-Mab  Hangzhou,  for  the  product  development
services  we  rendered  for  selected  pipeline  sub-licensed  or  assigned  to  I-Mab  Hangzhou,  including  TJ301,  TJM2  (excluding  cytokine
release syndrome indications) and a few pre-clinical programs that are unessential to our immune-oncology focus. In 2021 and 2022, I-
Mab  Hangzhou  paid  us  RMB52.4  million  and  nil  for  the  product  development  services  we  offered.  In  July  2021,  we  entered  into  a
biologics master services agreement with I-Mab Hangzhou. Under the framework of this biologics master services agreement, we entered
into  series  of  work  orders  with  respect  to  process  development  and  manufacturing  service  for  our  drug  assets  in  2021  and  2022,
respectively.  Pursuant  to  the  work  orders  signed  with  I-Mab  Hangzhou  in  2022,  I-Mab  Hangzhou  will  provide  us  with  CMC
development  and  manufacturing  services  for  a  total  of  RMB126.5  million  (US$18.3  million).  We  paid  I-Mab  Hangzhou  RMB10.7
million and RMB46.2 million (US$6.7 million) for the years ended December 31, 2021 and 2022, respectively.

In  December  2021,  we  entered  into  a  supplementary  sublicensing  agreement  with  I-Mab  Hangzhou,  pursuant  to  which  I-Mab
Hangzhou, as a sub-licensee of olamkicept (TJ301) in Greater China and Korea, agreed to pay US$3.0 million to us for the completion of
olamkicept  (TJ301)  Phase  2a  study  report.  After  receiving  the  milestone  payment  of  RMB19.1  million  (US$3.0  million)  from  I-Mab
Hangzhou, we settled the payment of US$3.0 million with Ferring, as of December 31, 2022.

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On July 16, 2022, I-Mab Hangzhou entered into a definitive financing agreement with a group of domestic investors in China to
raise  approximately  US$46  million  (in  RMB  equivalent).  On  the  same  date,  we,  through  our  wholly-owned  subsidiary,  entered  into  a
shareholders agreement with I-Mab Hangzhou and other domestic investors in I-Mab Hangzhou named therein (the “I-Mab Hangzhou
Shareholders  Agreement”).  Upon  the  occurrence  of  certain  triggering  events  as  specified  in  the  I-Mab  Hangzhou  Shareholders
Agreement, including but not limited to I-Mab Hangzhou’s failure to accomplish certain public offering condition, we may be obligated
to repurchase the equity held by other domestic investors in cash or in our stocks in the period beyond 12 months.

C.   Interests of Experts and Counsel

Not applicable.

ITEM 8.

FINANCIAL INFORMATION

A.   Consolidated Statements and Other Financial Information

We have appended consolidated financial statements filed as part of this annual report.

Legal Proceedings

From  time  to  time  we  may  become  involved  in  legal  proceedings  or  be  subject  to  claims  arising  in  the  ordinary  course  of  our
business. We are not presently a party to any legal proceedings that, if determined adversely to us, would individually or taken together
have a material adverse effect on our business, results of operations, financial condition or cash flows. In April 2020, Tracon issued a
notice of disputes with respect to the TJD5 Agreement and the BsAbs Agreement. In February 2021, we sent Tracon a notice to terminate
the TJD5 Agreement, which would result in a prespecified termination fee of US$9.0 million owing to Tracon. Accordingly, we have
already accrued and recorded this termination fee of US$9.0 million as administrative expenses in our consolidated financial statements
for  the  year  ended  December  31,  2021.  The  disputes  relating  to  the  TJD5  Agreement  and  the  BsAbs  Agreement  were  presented  to  a
binding arbitration proceeding under the Rules of Arbitration of the International Chamber of Commerce before an arbitration tribunal.
On April 25, 2023, we announced positive outcomes in the arbitration. The arbitration award determined that the TJD5 Agreement has
been terminated for a pre-agreed termination fee of $9.0 million plus interest payable pursuant to the original agreement, and, therefore
Tracon has no rights to share any future economics with I-Mab. The arbitration award completely denied Tracon’s damages claim of over
US$200 million for any breach and awarded no damages to Tracon. The tribunal also confirmed the termination of the BsAb Agreement.
Based  on  the  arbitration  award,  I-Mab  will  bear  a  portion  of  Tracon’s  legal  fees  and  costs,  totaling  approximately  US$13.5  million,
which was recorded as administrative expenses in our consolidated financial statements for the year ended December 31, 2022. Due to
Tracon’s wrong-doing during the confidential arbitration process, we are pursuing a trade secret misappropriation lawsuit case against a
competitor  of  us  and  seeking  remedies,  including  potentially  substantial  monetary  damages.  Regardless  of  the  outcome,  litigations  or
arbitrations  can  have  an  adverse  impact  on  us  because  of  defense  and  settlement  costs,  diversion  of  management  resources  and  other
factors.  Enforcing  a  claim  that  a  party  illegally  disclosed  or  misappropriated  a  trade  secret  can  be  difficult,  expensive  and  time-
consuming, and the outcome is unpredictable.

Dividend Policy

Our board of directors has complete discretion on whether to pay dividends, subject to certain requirements of Cayman Islands law.
Even if our board of directors decides to pay dividends on our ordinary shares, the form, frequency and amount will depend upon our
future  operations  and  earnings,  capital  requirements  and  surplus,  general  financial  condition,  contractual  restrictions  and  other  factors
that our board of directors may deem relevant.

We do not have any present plan to pay any cash dividends on our ordinary shares in the foreseeable future. We currently intend to

retain most, if not all, of our available funds and any future earnings to operate and expand our business.

We are a holding company incorporated in the Cayman Islands. We may rely on dividends from our subsidiaries in China for our
cash  requirements,  including  any  payment  of  dividends  to  our  shareholders.  PRC  regulations  may  restrict  the  ability  of  our  PRC
subsidiaries to pay dividends to us. See “Item 4. Information on the Company—B. Business Overview—Regulation—PRC Regulation—
Regulations Relating to Foreign Exchange and the Dividend Distribution.”

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If we pay any dividends on our ordinary shares, we will pay those dividends which are payable in respect of the ordinary shares
underlying our ADSs to the depositary, as the registered holder of such ordinary shares, and the depositary then will pay such amounts to
our ADS holders in proportion to the ordinary shares underlying the ADSs held by such ADS holders, subject to the terms of the deposit
agreement,  including  the  fees  and  expenses  payable  thereunder.  Cash  dividends  on  our  ordinary  shares,  if  any,  will  be  paid  in  U.S.
dollars.

B.   Significant Changes

We  have  not  experienced  any  significant  changes  since  the  date  of  our  audited  consolidated  financial  statements  included  in  this

annual report.

ITEM 9.

THE OFFER AND LISTING

A.   Offering and Listing Details

Our  ADSs,  each  ten  (10)  ADSs  representing  twenty-three  (23)  ordinary  shares  of  ours,  have  been  listed  on  the  Nasdaq  Global

Market since January 17, 2020. Our ADSs trade under the symbol “IMAB.”

B.   Plan of Distribution

Not applicable.

C.   Markets

Our  ADSs,  each  ten  (10)  ADSs  representing  twenty-three  (23)  ordinary  shares  of  ours,  have  been  listed  on  the  Nasdaq  Global

Market since January 17, 2020. Our ADSs trade under the symbol “IMAB.”

D.   Selling Shareholders

Not applicable.

E.   Dilution

Not applicable.

F.   Expenses of the Issue

Not applicable.

ITEM 10. ADDITIONAL INFORMATION

A.   Share Capital

Not applicable.

B.   Memorandum and Articles of Association

The following is a summary of the material provisions of the sixth amended and restated memorandum and articles of association of

our company and of the Companies Act, insofar as they relate to the material terms of our ordinary shares.

Objects of Our Company. Under our current memorandum and articles of association, the objects of our company are unrestricted
and we have the full power and authority to carry out any object not prohibited by the Companies Act or any other law of the Cayman
Islands.

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Ordinary Shares. Certificates representing the ordinary shares are issued in registered form and our ordinary shares are issued when
registered in our register of members. We may not issue shares to bearers. Our shareholders who are non-residents of the Cayman Islands
may freely hold and vote their shares.

Dividends. Our directors may from time to time declare dividends (including interim dividends) and other distributions on our shares
in issue and authorize payment of the same out of the funds of our company lawfully available therefor. In addition, our company may
declare  dividends  by  ordinary  resolution,  but  no  dividend  should  exceed  the  amount  recommended  by  our  directors.  Our  current
memorandum  and  articles  of  association  provide  that  dividends  may  be  declared  and  paid  out  of  the  funds  of  our  company  lawfully
available therefor. Under the laws of the Cayman Islands, our company may pay a dividend out of either profit or the credit standing in
our share premium account; provided that in no circumstances may a dividend be paid out of the share premium account if this would
result in our company being unable to pay its debts as they fall due in the ordinary course of business.

Voting Rights. Voting at any meeting of shareholders is by show of hands unless a poll is demanded. A poll may be demanded by the
chairman  of  such  meeting  or  any  one  shareholder  or  shareholders  collectively  holding  not  less  than  5%  of  the  votes  attaching  to  the
shares present in person or by proxy.

An ordinary resolution to be passed at a meeting by the shareholders requires the affirmative vote of a simple majority of the votes
attaching to the ordinary shares cast at a meeting, while a special resolution requires the affirmative vote of not less than two-thirds of the
votes attaching to the ordinary shares cast at a meeting. A special resolution will be required for important matters such as a change of
name or making changes to our current memorandum and articles of association.

Alteration of Share Capital

We may from time to time by ordinary resolution:

● increase our share capital by such sum, to be divided into shares of such classes and amount, as the resolution prescribes;

● consolidate and divide all or any of our share capital into shares of a larger amount than its existing shares;

● subdivide  our  shares,  or  any  of  them,  into  shares  of  an  amount  smaller  than  that  fixed  by  the  memorandum  of  association,
provided that in the subdivision the proportion between the amount paid and the amount, if any, unpaid on each reduced share
should be the same as it was in case of the share from which the reduced share is derived; and

● cancel any shares that, at the date of the passing of the resolution, have not been taken or agreed to be taken by any person and

diminish the amount of its share capital by the amount of the shares so cancelled.

We may by special resolution, subject to any confirmation or consent required by the Companies Act, reduce our share capital and

any capital redemption reserve in any manner authorized by law.

General  Meetings  of  Shareholders.  As  a  Cayman  Islands  exempted  company,  we  are  not  obliged  by  the  Companies  Act  to  call
shareholders’ annual general meetings. Our current memorandum and articles of association provide that we may (but are not obliged to)
in each year hold a general meeting as our annual general meeting in which case we should specify the meeting as such in the notices
calling it, and the annual general meeting will be held at such time and place as may be determined by our directors.

Shareholders’ general meetings may be convened by our directors (acting by a resolution of our board). Advance notice of at least
14 calendar days is required for any general shareholders’ meeting. A quorum required for any general meeting of shareholders consists
of,  at  the  time  when  the  meeting  proceeds  to  business,  one  or  more  of  our  shareholders  holding  shares  which  carry  in  aggregate  (or
representing  by  proxy)  not  less  than  one-third  of  all  votes  attaching  to  all  of  our  shares  in  issue  and  entitled  to  vote  at  such  general
meeting.

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The Companies Act does not provide shareholders with any right to requisition a general meeting, nor any right to put any proposal
before  a  general  meeting.  However,  these  rights  may  be  provided  in  a  company’s  articles  of  association.  Our  current  articles  of
association allow our shareholders holding in aggregate not less than one-tenth of all votes attaching to all issued and outstanding shares
of our company that as at the date of the deposit carry the right to vote at general meetings of the company to requisition an extraordinary
general  meeting  of  our  shareholders,  in  which  case  our  board  is  obliged  to  convene  an  extraordinary  general  meeting  and  to  put  the
resolutions so requisitioned to a vote at such meeting. However, our current memorandum and articles of association do not provide our
shareholders with any right to put any proposals before annual general meetings or extraordinary general meetings not called by such
shareholders.

Transfer of Ordinary Shares. Subject to the restrictions set out below, any of our shareholders may transfer all or any of his or her

ordinary shares by an instrument of transfer in the usual or common form or any other form approved by our board of directors.

Our board of directors may, in its absolute discretion, decline to register any transfer of any ordinary share which is not fully paid up

or on which we have a lien. Our board of directors may also decline to register any transfer of any ordinary share unless:

● the instrument of transfer is lodged with us, accompanied by the certificate for the ordinary shares to which it relates and such

other evidence as our board of directors may reasonably require to show the right of the transferor to make the transfer;

● the instrument of transfer is in respect of only one class of shares;

● the instrument of transfer is properly stamped, if required;

● in the case of a transfer to joint holders, the number of joint holders to whom the ordinary share is to be transferred does not

exceed four; and

● a fee of such maximum sum as the Nasdaq Global Market may determine to be payable or such lesser sum as our directors may

from time to time require is paid to us in respect thereof.

If  our  directors  refuse  to  register  a  transfer,  they  should,  within  three  calendar  months  after  the  date  on  which  the  instrument  of

transfer was lodged with our company, send to each of the transferor and the transferee notice of such refusal.

The registration of transfers may, on ten calendar days’ notice being given by advertisement in such one or more newspapers, by
electronic means or by any other means in accordance with the rules of the Nasdaq Global Market be suspended and the register closed at
such times and for such periods as our board of directors may from time to time determine; provided, however, that the registration of
transfers should not be suspended nor the register closed for more than 30 calendar days in any year.

Liquidation.  On  the  winding  up  of  our  company,  if  the  assets  available  for  distribution  amongst  our  shareholders  are  more  than
sufficient to repay the whole of the share capital at the commencement of the winding up, the surplus should be distributed amongst our
shareholders in proportion to the par value of the shares held by them at the commencement of the winding up, subject to a deduction
from those shares in respect of which there are monies due, of all monies payable to our company for unpaid calls or otherwise. If our
assets available for distribution are insufficient to repay the whole of the share capital, such assets will be distributed so that, as nearly as
may be, the losses are borne by our shareholders in proportion to the par value of the shares held by them.

Calls on Shares and Forfeiture of Shares. Our board of directors may from time to time make calls upon shareholders in respect of
any moneys unpaid on their shares in a notice served to such shareholders at least 14 calendar days prior to the specified time or times of
payment. The shares that have been called upon and remain unpaid are subject to forfeiture.

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Redemption, Repurchase and Surrender of Shares. We may issue shares on terms that such shares are subject to redemption, at our
option or at the option of the holders of these shares, on such terms and in such manner as may be determined, before the issue of such
shares, by our board of directors or by our shareholders by a special resolution. Our company may also repurchase any of our shares on
such terms and in such manner as have been approved by our board of directors or by an ordinary resolution of our shareholders or are
otherwise authorized by the articles of association. Under Cayman Islands law, any redemption or repurchase of shares by our company
may be made out of profits of our company, out of our company’s share premium account or out of the proceeds of a fresh issue of shares
made for the purpose of the repurchase or, if so authorized by the articles of association and subject to provisions of the Companies Act,
out of capital. Any premium payable on a redemption or repurchase over the par value of the shares to be repurchased or redeemed must
be provided for out of profits of our company or from sums standing to the credit of the share premium account of our company or, if
authorized by the articles of association and subject to the provisions of the Companies Act, out of capital. At no time may a company
redeem or repurchase its shares unless they are fully paid. A company may not redeem or repurchase any of its shares if, as a result of the
redemption  or  repurchase,  there  would  no  longer  be  any  issued  shares  of  the  company  other  than  shares  held  as  treasury  shares.  In
addition, our company may accept the surrender of any fully paid share for no consideration.

Variations of Rights of Shares. Whenever the capital of our company is divided into different classes the rights attached to any such
class may, subject to any rights or restrictions for the time being attached to any class, only be varied with the consent in writing of the
holders of all of the issued shares of that class or with the sanction of a special resolution passed at a separate meeting of the holders of
the shares of that class. The rights conferred upon the holders of the shares of any class issued with preferred or other rights should not,
subject  to  any  rights  or  restrictions  for  the  time  being  attached  to  the  shares  of  that  class,  be  deemed  to  be  varied  by  the  creation,
allotment or issue of further shares ranking pari passu with or subsequent to them or the redemption or purchase of any shares of any
class  by  our  company.  The  rights  of  the  holders  of  shares  should  not  be  deemed  to  be  varied  by  the  creation  or  issue  of  shares  with
preferred or other rights, including, without limitation, the creation of shares with enhanced or weighted voting rights.

Issuance  of  Additional  Shares.  Our  current  memorandum  and  articles  of  association  authorize  our  board  of  directors  to  issue

additional ordinary shares from time to time as our board of directors determines.

Our current memorandum and articles of association also authorize our board of directors to issue from time to time one or more
series of preference shares and to determine, with respect to any series of preference shares, the terms and rights of that series, including:

● the designation of the series;

● the number of preferred shares to constitute such series;

● the dividend rights, dividend rates, conversion rights, voting rights; and

● the rights and terms of redemption and liquidation preferences.

Issuance of these shares may dilute the voting power of holders of ordinary shares.

Inspection  of  Books  and  Records.  The  notice  of  registered  office  is  a  matter  of  public  record.  A  list  of  the  names  of  the  current
directors and alternate directors (if applicable) are made available by the Registrar of Companies of the Cayman Islands for inspection by
any person on payment of a fee. Shareholders have no general right under Cayman Islands law to inspect or obtain copies of our list of
shareholders or our corporate records (save for our memorandum and articles of association and our register of mortgages and charges).
However, we intend to provide our shareholders with annual audited financial statements.

Anti-Takeover Provisions. Some provisions of our current memorandum and articles of association may discourage, delay or prevent
a change of control of our company or management that shareholders may consider favorable, including provisions that authorize our
board  of  directors  to  issue  preference  shares  in  one  or  more  series  and  to  designate  the  price,  rights,  preferences,  privileges  and
restrictions of such preference shares.

However,  under  Cayman  Islands  law,  our  directors  may  only  exercise  the  rights  and  powers  granted  to  them  under  our  current
memorandum and articles of association for a proper purpose and for what they believe in good faith to be in the best interests of our
company.

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Exempted Company. We are an exempted company with limited liability incorporated under the Companies Act. The Companies Act
distinguishes between ordinary resident companies and exempted companies. Any company that is registered in the Cayman Islands but
conducts business mainly outside of the Cayman Islands may apply to be registered as an exempted company. The requirements for an
exempted company are essentially the same as for an ordinary company except that an exempted company:

● does not have to file an annual return of its shareholders with the Registrar of Companies;

● is not required to open its register of members for inspection;

● does not have to hold an annual general meeting;

● may issue shares with no par value;

● may obtain an undertaking against the imposition of any future taxation (such undertakings are usually given for 20 years in the

first instance);

● may register by way of continuation in another jurisdiction and be deregistered in the Cayman Islands;

● may register as a limited duration company; and

● may register as a segregated portfolio company.

“Limited liability” means that the liability of each shareholder is limited to the amount unpaid by the shareholder on the shares of the

company.

C.   Material Contracts

We have not entered into any material contracts other than in the ordinary course of business and other than those described under
this  item,  in  “Item  4.  Information  on  the  Company,”  “Item  7.  Major  Shareholders  and  Related  Party  Transactions—B.  Related  Party
Transactions,” “Item 10. Additional Information—C. Material Contracts” or elsewhere in this annual report on Form 20-F.

Subscription Agreements with Certain Investors Other Than Hillhouse Entities

In September 2020, we entered into subscription agreements with various investors other than HillHouse Entities. The subscription
agreements  are  of  the  same  form  and  provide  for  certain  investors’  rights,  such  as  registration  rights  and  anti-dilution  right.  Set  forth
below is a description of certain rights and restrictions thereof.

Mandatory Registration. We agree to file with the SEC a registration statement to register the resale of such investors’ registrable
securities, which include ordinary shares issued and issuable upon exercise of Investor Warrants under the Subscription Agreement, on
Form  F-3  or  Form  F-1,  as  applicable.  We  should  have  the  relevant  registration  statement  declared  effective  by  the  SEC  no  later  than
ninety (90) calendar days after the initial closing date, which period could be extended to one hundred and twenty (120) calendar days if
the SEC reviews and comments on the registration statement. However, if the SEC prevents inclusion of the registrable securities in the
registration statement pursuant to limitations under Rule 415 of the Securities Act, the number of registrable securities to be registered
for  each  selling  shareholder  named  in  the  registration  statement  should  be  reduced  pro  rata  among  all  such  selling  shareholders.  We
should maintain the continuous effectiveness of the registration statement for a period of ninety (90) days after its effectiveness or such
shorter period upon which such investors have notified us that their registrable securities have actually been sold.

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Piggyback  Registration.  We  agree  to  notify  such  investors  at  least  thirty  (30)  days  prior  to  filing  any  registration  statement  for
purposes  of  effecting  a  public  offering  of  ADSs  (excluding  registration  statements  relating  to  the  mandatory  registration  described
above). The Private Placement Investors has 20 days after receiving notice from us to notify us in writing of their desire to include their
registrable  securities  in  the  registration  statement.  However,  if  the  registrable  securities  in  such  registration  statement  are  offered  by
means  of  an  underwritten  offering,  and  we  or  the  underwriters  determine  that  marketing  factors  require  a  limitation  of  the  number  of
securities  to  be  underwritten,  the  number  of  registrable  securities  that  may  be  included  in  the  underwriting  should  be  reduced  and
allocated  (i)  first,  to  us  and  each  holder  in  accordance  with  the  terms  of  the  Shareholders  Agreement;  (ii)  second,  to  investors  in  the
private placements entered into in September 2020 requesting inclusion of their registrable securities in such registration statement on a
pro  rata  basis  based  on  the  total  number  of  registrable  securities  then  held  by  each  such  investor;  and  (iii)  third,  to  other  holders  of
registrable securities, if any.

Suspension of Registration. We may suspend the use of any registration statement for a period not exceeding thirty (30) consecutive
trading days, if we (i) determine that we would be required to make disclosure of material information in the registration statement that
we have a bona fide business purpose for preserving as confidential; (ii) determine that we must amend or supplement the registration
statement so that it does not include an untrue statement of a material fact or omit to state a material fact; or (iii) have experienced or are
experiencing some other material non-public event, the disclosure of which at such time would adversely affect us. However, we cannot
exercise  the  suspension  right  more  than  once  in  any  twelve  (12)  month  period  and  may  not  register  any  other  securities  during  such
suspension period.

Expenses. We will bear all registration expenses, except any (i) portions of fees and disbursements of counsel for such investors, and

(ii) underwriting discounts and selling commissions applicable to sale of registrable securities.

Ranking  of  Registration  Rights.  Registration  rights  granted  to  such  investors  should  not  be  senior  to,  or  on  a  parity  with,  those

granted to holders under the Shareholders Agreement.

D.   Exchange Controls

See  “Item  4.  Information  on  the  Company—B.  Business  Overview—Regulation—Regulations  Relating  to  Foreign  Exchange  and

the Dividend Distribution.”

E.   Taxation

The following summary of the material Cayman Islands, PRC and U.S. federal income tax consequences of an investment in the
ADSs or ordinary shares is based upon laws and relevant interpretations thereof in effect as of the date of this annual report, all of which
are subject to change. This summary does not deal with all possible tax consequences relating to an investment in the ADSs or ordinary
shares, such as the tax consequences under U.S. state and local tax laws or under the tax laws of jurisdictions other than the Cayman
Islands, China and the United States.

Cayman Islands Taxation

According  to  Harney  Westwood  &  Riegels,  our  Cayman  Islands  counsel,  the  Cayman  Islands  currently  levies  no  taxes  on
individuals or corporations based upon profits, income, gains or appreciation and there is no taxation in the nature of inheritance tax or
estate duty. There are no other taxes likely to be material to us levied by the government of the Cayman Islands except for stamp duties
which  may  be  applicable  on  instruments  executed  in,  or  brought  to,  or  produced  before  a  court  of  the  Cayman  Islands.  The  Cayman
Islands  are  a  party  to  a  double  tax  treaty  entered  into  with  the  United  Kingdom  in  2010  but  otherwise  is  not  party  to  any  double  tax
treaties. There are no exchange control regulations or currency restrictions in the Cayman Islands.

Payments of dividends and capital in respect of our shares will not be subject to taxation in the Cayman Islands and no withholding
will be required on the payment of a dividend or capital to any holder of the shares, nor will gains derived from the disposal of our shares
be subject to Cayman Islands income or corporation tax.

No stamp duty is payable in respect of the issue of shares by our company and no stamp duty is payable on transfers of shares of our
company provided our company does not hold any interest in land in the Cayman Islands and save that stamp duties may be applicable
on instruments executed in, or brought to, or produced before a court of the Cayman Islands.

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PRC Taxation

Under  the  PRC  Enterprise  Income  Tax  Law  and  its  implementation  rules,  an  enterprise  established  outside  China  with  “de  facto
management body” within China is considered as a Tax Resident Enterprise for PRC enterprise income tax purposes and is generally
subject  to  a  uniform  25%  enterprise  income  tax  rate  on  its  worldwide  income.  The  implementation  rules  define  the  term  “de  facto
management  body”  as  the  body  that  exercises  full  and  substantial  control  and  overall  management  over  the  business,  productions,
personnel,  accounts  and  properties  of  an  enterprise.  In  April  2009,  the  State  Administration  of  Taxation  issued  Circular  82,  which
provides  certain  specific  criteria  for  determining  whether  the  “de  facto  management  body”  of  a  PRC-controlled  enterprise  that  is
incorporated offshore is located in China. Although this circular only applies to offshore enterprises controlled by PRC enterprises or
PRC enterprise groups, not those controlled by PRC individuals or foreigners, the criteria set forth in the circular may reflect the State
Administration  of  Taxation’s  general  position  on  how  the  “de  facto  management  body”  text  should  be  applied  in  determining  the  tax
resident status of all offshore enterprises. According to Circular 82, an offshore incorporated enterprise controlled by a PRC enterprise or
a PRC enterprise group will be regarded as a PRC tax resident by virtue of having its “de facto management body” in China if all of the
following conditions are met: (i) the primary location of the day-to-day operational management is in China; (ii) decisions relating to the
enterprise’s financial and human resource matters are made or are subject to approval by organizations or personnel located in China;
(iii) the enterprise’s primary assets, accounting books and records, company seals, and board and shareholder resolutions, are located or
maintained in China; and (iv) at least 50% of voting board members or senior executives habitually reside in China.

Our PRC counsel, JunHe LLP, is of the opinion that, based on its understanding of the current PRC Laws and Regulations, as I-Mab
does not meet all of the above conditions and given that neither I-Mab nor any of its PRC Subsidiaries has received any notice from the
PRC tax authorities confirming, directly or indirectly, that I-Mab is a PRC resident enterprise for PRC tax income purposes as of the date
of this annual report, I-Mab should not be considered as a PRC resident enterprise for PRC income tax purposes.

I-Mab is incorporated outside of China and it is not controlled by a PRC enterprise or PRC enterprise group. We have structured a
clear  management  guideline  in  place  to  segregate  the  policy  set  up  and  business  operating  execution  responsibilities  in  order  to
differentiate the effective control from our headquarter office and subsidiaries including record keeping and offshore work location plan.

I-Mab  is  a  company  incorporated  outside  the  PRC.  As  a  holding  company,  its  key  assets  are  its  ownership  interests  in  its
subsidiaries, and its key assets are located, and its records (including the resolutions of its board of directors and the resolutions of its
shareholders) are maintained, outside China. However, the tax resident status of an enterprise is subject to determination by the PRC tax
authorities and uncertainties remain with respect to the interpretation of the term “de facto management body.” We cannot guarantee you
that PRC tax authorities will not take a different view.

If the PRC tax authorities determine that I-Mab is a PRC resident enterprise for enterprise income tax purposes, our worldwide
income  could  be  subject  to  25%  enterprise  income  tax;  and  any  dividends  payable  to  non-resident  enterprise  holders  of  our  common
shares or ADSs may be treated as income derived from sources within China and therefore, subject to a 10% withholding tax (or 20% in
the case of non-resident individual holders) unless an applicable income tax treaty provides otherwise. In addition, capital gains realized
by non-resident enterprise shareholders (including our ADS holders) upon the disposition of our common shares or ADSs may be treated
as income derived from sources within PRC and therefore, subject to 10% income tax (or 20% in the case of non-resident individual
shareholders or ADS holders) unless an applicable income tax treaty provides otherwise. It is unclear whether non-PRC shareholders of
our company would be able to claim the benefits of any tax treaties between their country of tax residence and the PRC in the event that
we are treated as a PRC resident enterprise. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China
—If  we  are  classified  as  a  PRC  resident  enterprise  for  PRC  income  tax  purposes,  such  classification  could  result  in  unfavorable  tax
consequences to us and our non-PRC shareholders or ADS holders.”

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United States Federal Income Tax Considerations

The following discussion is a summary of U.S. federal income tax considerations relating to the ownership and disposition of our
ADSs or ordinary shares by a U.S. Holder (as defined below) that acquires our ADSs or ordinary shares and holds our ADSs or ordinary
shares as “capital assets” (generally, property held for investment) under the U.S. Internal Revenue Code of 1986, as amended, or the
Code. This discussion is based upon existing U.S. federal tax law, which is subject to differing interpretations or change, possibly with
retroactive effect. There can be no assurance that the Internal Revenue Service, or the IRS, or a court will not take a contrary position.
This discussion does not address the U.S. federal estate, gift, Medicare, and minimum tax considerations, or any state, local, and non-
U.S.  tax  considerations,  relating  to  the  ownership  or  disposition  of  our  ADSs  or  ordinary  shares.  This  discussion,  moreover,  does  not
discuss all aspects of U.S. federal income taxation that may be important to particular investors in light of their individual investment
circumstances or to investors subject to special tax situations such as:

● banks and other financial institutions;

● insurance companies;

● pension plans;

● cooperatives;

● regulated investment companies;

● real estate investment trusts;

● broker-dealers;

● traders in securities that elect to use a mark-to-market method of accounting;

● certain former U.S. citizens or long-term residents;

● tax-exempt entities (including private foundations);

● investors who are not U.S. Holders;

● investors who own (directly, indirectly or constructively) 10% or more of our stock (by vote or value);

● investors who acquire their ADSs or ordinary shares pursuant to any employee share option or otherwise as compensation;

● investors  that  will  hold  their  ADSs  or  ordinary  shares  as  part  of  a  straddle,  hedge,  conversion,  constructive  sale  or  other

integrated transaction for U.S. federal income tax purposes; or

● investors that have a functional currency other than the U.S. dollar;

all of whom may be subject to tax rules that differ significantly from those discussed below. Each U.S. Holder is urged to consult its
tax advisor regarding the U.S. federal, state, local and non-U.S. income and other tax considerations of an investment in our ADSs or
ordinary shares.

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General

For purposes of this discussion, a “U.S. Holder” is a beneficial owner of our ADSs or ordinary shares that is, for U.S. federal income
tax purposes, (i) an individual who is a citizen or resident of the United States, (ii) a corporation (or other entity treated as a corporation
for U.S. federal income tax purposes) created in, or organized under the law of, the United States or any state thereof or the District of
Columbia, (iii) an estate the income of which is includible in gross income for U.S. federal income tax purposes regardless of its source,
or  (iv)  a  trust  (A)  the  administration  of  which  is  subject  to  the  primary  supervision  of  a  U.S.  court  and  which  has  one  or  more  U.S.
persons who have the authority to control all substantial decisions of the trust or (B) that has otherwise validly elected to be treated as a
U.S. person under the Code.

If a partnership (or other entity treated as a partnership for U.S. federal income tax purposes) is a beneficial owner of our ADSs or
ordinary shares, the tax treatment of a partner in the partnership will generally depend upon the status of the partner and the activities of
the  partner  and  the  partnership.  Partnerships  holding  our  ADSs  or  ordinary  shares  and  their  partners  are  urged  to  consult  their  tax
advisors regarding an investment in our ADSs or ordinary shares.

For U.S. federal income tax purposes, it is generally expected that a U.S. Holder of ADSs will be treated as the beneficial owner of
the underlying shares represented by the ADSs. The remainder of this discussion assumes that a U.S. Holder of our ADSs will be treated
as the beneficial owner of the underlying shares represented by the ADSs. Accordingly, deposits or withdrawals of ordinary shares for
ADSs will generally not be subject to U.S. federal income tax.

Passive Foreign Investment Company Considerations

A  non-U.S.  corporation,  such  as  our  company,  will  be  classified  as  a  passive  foreign  investment  company,  or,  or  PFIC,  for  U.S.
federal income tax purposes for any taxable year if either (i) 75% or more of its gross income for such year consists of certain types of
“passive”  income  or  (ii)  50%  or  more  of  the  value  of  its  assets  (generally  determined  on  the  basis  of  a  quarterly  average)  during
such year is attributable to assets that produce or are held for the production of passive income. For this purpose, cash and assets readily
convertible into cash are each categorized as a passive asset and the company’s goodwill and other unbooked intangibles are taken into
account. Passive income generally includes, among other things, dividends, interest, rents, royalties, and gains from the disposition of
passive assets. We will be treated as owning a proportionate share of the assets and earning a proportionate share of the income of any
other corporation in which we own, directly or indirectly, 25% or more (by value) of the stock.

Based upon the nature and composition of our assets (in particular, the retention of substantial amounts of cash and investments),
and the market price of our ADSs, we believe that we were a PFIC for the taxable year ended December 31, 2022 and we will likely be a
PFIC for our current taxable year unless the market price of our ADSs increases and/or we invest a substantial amount of the cash and
other passive assets we hold in assets that produce or are held for the production of active income.

If  we  are  a  PFIC  for  any  year  during  which  a  U.S.  Holder  holds  our  ADSs  or  ordinary  shares,  we  generally  will  continue  to  be
treated as a PFIC for all succeeding years during which such U.S. Holder holds our ADSs or ordinary shares. However, if we cease to be
a PFIC, provided that you have not made a mark-to-market election, as described below, you may avoid some of the adverse effects of
the PFIC regime by making a “deemed sale” election with respect to the ADSs or ordinary shares, as applicable. If such election is made,
you will be deemed to have sold our ADSs or ordinary shares you hold at their fair market value and any gain from such deemed sale
would be subject to the rules described below under “Passive Foreign Investment Company Rules.” After the deemed sale election, so
long as we do not become a PFIC in a subsequent taxable year, your ADSs or ordinary shares with respect to which such election was
made  will  not  be  treated  as  shares  in  a  PFIC  and  you  will  not  be  subject  to  the  rules  described  below  with  respect  to  any  “excess
distribution” you receive from us or any gain from an actual sale or other disposition of the ADSs or ordinary shares. The rules dealing
with  deemed  sale  elections  are  very  complex.  Each  U.S.  Holder  should  consult  its  tax  advisors  regarding  the  possibility  and
considerations of making a deemed sale election.

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Dividends

Subject  to  the  discussion  below  under  “—Passive  Foreign  Investment  Company  Rules,”  any  cash  distributions  (including  the
amount of any tax withheld) paid on our ADSs or ordinary shares out of our current or accumulated earnings and profits, as determined
under U.S. federal income tax principles, will generally be includible in the gross income of a U.S. Holder as dividend income on the day
actually or constructively received by the U.S. Holder. Because we do not intend to determine our earnings and profits on the basis of
U.S.  federal  income  tax  principles,  any  distribution  we  pay  will  generally  be  reported  as  a  “dividend”  for  U.S.  federal  income  tax
purposes.  Dividends  received  on  our  ADSs  or  ordinary  shares  will  not  be  eligible  for  the  dividends  received  deduction  allowed  to
corporations in respect of dividends received from U.S. corporations.

A non-corporate U.S. Holder will generally be subject to tax on dividend income from a “qualified foreign corporation” at a lower
applicable capital gains rate rather than the marginal tax rates generally applicable to ordinary income provided that certain conditions
are  satisfied,  including  that  (1)  our  ADSs  or  ordinary  shares  on  which  the  dividends  are  paid  are  readily  tradable  on  an  established
securities market in the United States, or in the event that we are deemed to be a PRC resident enterprise under the PRC tax law, we are
eligible for the benefits of the United States-PRC income tax treaty (the “Treaty”); (2) we are neither a PFIC nor treated as such with
respect to a U.S. Holder for the taxable year in which the dividend is paid and the preceding taxable year, and (3) certain holding period
requirements are met. Our ADSs (but not our ordinary shares) are listed on the Nasdaq Global Market and is considered readily tradable
on an established securities market in the United States. Since we do not expect that our ordinary shares will be listed on an established
securities market, we do not believe that dividends that we pay on our ordinary shares that are not represented by ADSs will meet the
conditions required for the reduced tax rate. There can be no assurance, however, that our ADSs will continue to be considered readily
tradable on an established securities market in later years.

In the event that we are deemed to be a PRC resident enterprise under the PRC Enterprise Income Tax Law, we may be eligible for
the  benefits  of  Treaty  and  in  that  case  we  would  be  treated  as  a  qualified  foreign  corporation  with  respect  to  dividends  paid  on  our
ordinary shares or ADSs. Each non-corporate U.S. Holder is advised to consult its tax advisors regarding the availability of the reduced
tax rate applicable to qualified dividend income for any dividends we pay with respect to our ADSs or ordinary shares.

Dividends will generally be treated as income from foreign sources for U.S. foreign tax credit purposes and will generally constitute
passive category income. In the event that we are deemed to be a PRC resident enterprise under the PRC Enterprise Income Tax Law, a
U.S. Holder may be subject to PRC withholding taxes on dividends paid on our ADSs or ordinary shares. See “—PRC Taxation” above.
In that case, depending on the U.S. Holder’s individual facts and circumstances, a U.S. Holder may be eligible, subject to a number of
complex limitations, to claim a foreign tax credit not in excess of any applicable treaty rate in respect of any foreign withholding taxes
imposed  on  dividends  received  on  our  ADSs  or  ordinary  shares.  A  U.S.  Holder  who  does  not  elect  to  claim  a  foreign  tax  credit  for
foreign tax withheld may instead claim a deduction, for U.S. federal income tax purposes, in respect of such withholding, but only for
a year in which such holder elects to do so for all creditable foreign income taxes. The rules governing the foreign tax credit are complex
and their outcome depends in large part on the U.S. Holder’s individual facts and circumstances. Accordingly, U.S. Holders are urged to
consult their tax advisors regarding the availability of the foreign tax credit under their particular circumstances.

As discussed above, we believe that we were a PFIC for the taxable year ended December 31, 2022, and we will likely be classified
as a PFIC for our current taxable year. U.S. Holders are urged to consult their tax advisors regarding the availability of the reduced rate
of taxation on dividends with respect to our ADSs or ordinary shares under their particular circumstances.

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Sale or Other Disposition of ADSs or Ordinary Shares

Subject  to  the  discussion  below  under  “—Passive  Foreign  Investment  Company  Rules,”  a  U.S.  Holder  will  generally  recognize
capital  gain  or  loss  upon  the  sale  or  other  disposition  of  ADSs  or  ordinary  shares  in  an  amount  equal  to  the  difference  between  the
amount realized upon the disposition and the holder’s adjusted tax basis in such ADSs or ordinary shares. Any capital gain or loss will be
long-term if the ADSs or ordinary shares have been held for more than one year and will generally be U.S. source gain or loss for U.S.
foreign tax credit purposes. Long-term capital gain of non-corporate U.S. Holders is generally eligible for a reduced rate of taxation. The
deductibility  of  a  capital  loss  may  be  subject  to  limitations.  In  the  event  that  we  are  treated  as  a  PRC  resident  enterprise  under  the
Enterprise Income Tax Law and gain from the disposition of the ADSs or ordinary shares is subject to tax in China, a U.S. Holder that is
eligible for the benefits of the Treaty may elect to treat the gain as PRC source income. Pursuant to recently issued Regulations, however,
if a U.S. Holder is not eligible for the benefits of the Treaty or does not elect to apply the Treaty, then such holder may not be able to
claim a foreign tax credit arising from any PRC tax imposed on the disposition of ADSs or ordinary shares. The rules regarding foreign
tax  credits  and  deduction  of  foreign  taxes  are  complex.  U.S.  Holders  should  consult  their  tax  advisors  regarding  the  availability  of  a
foreign tax credit or deduction in light of their particular circumstances, including their eligibility for benefits under the Treaty and the
potential impact of the recently issued Regulations.

As discussed above, we believe that we were a PFIC for the taxable year ended December 31, 2022, and we will likely be classified
as a PFIC for our current taxable year. U.S. Holders are urged to consult their tax advisors regarding the tax considerations of the sale or
other disposition of our ADSs or ordinary shares under their particular circumstances.

Passive Foreign Investment Company Rules

As discussed above, we believe that we were a PFIC for the taxable year ended December 31, 2022, and we will likely be classified
as a PFIC for our current taxable year. If we are classified as a PFIC for any taxable year during which a U.S. Holder holds our ADSs or
ordinary  shares,  and  unless  the  U.S.  Holder  makes  a  mark-to-market  election  (as  described  below),  the  U.S.  Holder  will  generally  be
subject to special tax rules that have a penalizing effect, regardless of whether we remain a PFIC, on (i) any excess distribution that we
make  to  the  U.S.  Holder  (which  generally  means  any  distribution  paid  during  a  taxable  year  to  a  U.S.  Holder  that  is  greater  than
125 percent of the average annual distributions paid in the three preceding taxable years or, if shorter, the U.S. Holder’s holding period
for the ADSs or ordinary shares), and (ii) any gain realized on the sale or other disposition (including, under certain circumstances, a
pledge) of ADSs or ordinary shares. Under the PFIC rules:

● the excess distribution or gain will be allocated ratably over the U.S. Holder’s holding period for the ADSs or ordinary shares;

● the  amount  allocated  to  the  current  taxable  year  and  any  taxable  years  in  the  U.S.  Holder’s  holding  period  prior  to  the  first

taxable year in which we are classified as a PFIC (each, a “pre-PFIC year”), will be taxable as ordinary income; and

● the amount allocated to each prior taxable year, other than a pre-PFIC year, will be subject to tax at the highest tax rate in effect
for individuals or corporations, as appropriate, for that year, increased by an additional tax equal to the interest on the resulting
tax deemed deferred with respect to each such taxable year.

If we are a PFIC for any taxable year during which a U.S. Holder holds our ADSs or ordinary shares and any of our subsidiaries is
also a PFIC, such U.S. Holder would be treated as owning a proportionate amount (by value) of the shares of the lower-tier PFIC for
purposes  of  the  application  of  these  rules.  U.S.  Holders  are  urged  to  consult  their  tax  advisors  regarding  the  application  of  the  PFIC
rules to any of our subsidiaries.

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As an alternative to the foregoing rules, a U.S. Holder of “marketable stock” (as defined below) in a PFIC may make a mark-to-
market  election  with  respect  to  such  stock,  provided  that  such  stock  is  regularly  traded  on  a  qualified  exchange  or  other  market,  as
defined in the applicable United States Treasury regulations. For those purposes, our ADSs, but not our ordinary shares, are listed on the
Nasdaq  Global  Market,  which  is  a  qualified  exchange.  We  anticipate  that  our  ADSs  should  qualify  as  being  regularly  traded,  but  no
assurances may be given in this regard. If a U.S. Holder makes this election, the holder will generally (i) include as ordinary income for
each taxable year that we are a PFIC the excess, if any, of the fair market value of ADSs held at the end of the taxable year over the
adjusted tax basis of such ADSs and (ii) deduct as an ordinary loss the excess, if any, of the adjusted tax basis of the ADSs over the fair
market  value  of  such  ADSs  held  at  the  end  of  the  taxable  year,  but  such  deduction  will  only  be  allowed  to  the  extent  of  the  amount
previously included in income as a result of the mark-to-market election. The U.S. Holder’s adjusted tax basis in the ADSs would be
adjusted to reflect any income or loss resulting from the mark-to-market election. If a U.S. Holder makes a mark-to-market election in
respect of a corporation classified as a PFIC and such corporation ceases to be classified as a PFIC, the holder will not be required to take
into account the gain or loss described above during any period that such corporation is not classified as a PFIC. If a U.S. Holder makes a
mark-to-market election, any gain such U.S. Holder recognizes upon the sale or other disposition of our ADSs in a year when we are a
PFIC will be treated as ordinary income and any loss will be treated as ordinary loss, but such loss will only be treated as ordinary loss to
the extent of the net amount previously included in income as a result of the mark-to-market election. If a U.S. Holder makes a mark-to-
market election it will be effective for the taxable year for which the election is made and all subsequent taxable years unless the ADSs
are no longer treated as marketable stock or the IRS consents to the revocation of the election.

Because  a  mark-to-market  election  cannot  technically  be  made  for  any  lower-tier  PFICs  that  we  may  own,  a  U.S.  Holder  may
continue to be subject to the PFIC rules with respect to such U.S. Holder’s indirect interest in any investments held by us that are treated
as an equity interest in a PFIC for U.S. federal income tax purposes.

We do not intend to provide information necessary for U.S. Holders to make qualified electing fund elections which, if available,

would result in tax treatment different from the general tax treatment for PFICs described above.

If a U.S. Holder owns our ADSs or ordinary shares during any taxable year that we are a PFIC, the holder must generally file an
annual  IRS  Form  8621.  Each  U.S.  Holder  is  urged  to  consult  its  tax  advisor  concerning  the  U.S.  federal  income  tax  consequences  of
purchasing, holding and disposing ADSs or ordinary shares if we are or become a PFIC, including the possibility of making a mark-to-
market election.

F.   Dividends and Paying Agents

Not applicable.

G.   Statement by Experts

Not applicable.

H.   Documents on Display

We  are  subject  to  periodic  reporting  and  other  informational  requirements  of  the  Exchange  Act  as  applicable  to  foreign  private
issuers, and are required to file reports and other information with the SEC. Specifically, we are required to file annually an annual report
on Form 20-F within four months after the end of each fiscal year, which is December 31. All information filed with the SEC can be
obtained over the internet at the SEC’s website at www.sec.gov. You can request copies of documents, upon payment of a duplicating fee,
by writing to the SEC. As a foreign private issuer, we are exempt from the rules under the Exchange Act prescribing the furnishing and
content of quarterly reports and proxy statements, and officers, directors and principal shareholders are exempt from the reporting and
short-swing profit recovery provisions contained in Section 16 of the Exchange Act.

We will furnish Citibank, N.A., the depositary of our ADSs, with our annual reports, which will include a review of operations and
annual audited consolidated financial statements prepared in conformity with U.S. GAAP, and all notices of shareholders’ meetings and
other reports and communications that are made generally available to our shareholders. The depositary will make such notices, reports
and  communications  available  to  holders  of  ADSs  and,  upon  our  request,  will  mail  to  all  record  holders  of  ADSs  the  information
contained in any notice of a shareholders’ meeting received by the depositary from us.

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I.   Subsidiary Information

Not applicable.

J.   Annual Report to Security Holders

Not applicable.

ITEM 11. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Inflation

To date, inflation in China has not materially impacted our results of operations. According to the National Bureau of Statistics of
China, the year-over-year percent changes in the consumer price index for December 2020, 2021 and 2022 were increases of 0.2%, 1.5%
and 1.8%, respectively. Although we have not been materially affected by inflation in the past, we can provide no assurance that we will
not be affected by higher rates of inflation in China in the future.

Market Risks

Interest and Credit Risk

We had cash, cash equivalents and restricted cash of RMB4,758.8 million, RMB3,523.6 million and RMB3,310.8 million (US$480.0

million) as of December 31, 2020, 2021 and 2022, respectively.

Our exposure to interest rate risk primarily relates to the interest income generated by excess cash, which is mostly held in interest-
bearing bank deposits. Interest-earning instruments carry a degree of interest rate risk. We have not been exposed to material risks due to
changes in interest rates, and we have not used any derivative financial instruments to manage our interest risk exposure.

Our credit risk is primarily attributable to the carrying amounts of cash and cash equivalents. The carrying amounts of cash and cash
equivalents represent the maximum amount of loss due to credit risk. We mainly place or invest cash and cash equivalents with state-
owned or reputable financial institutions in the PRC, and reputable financial institutions outside of the PRC. We do not believe that our
cash and cash equivalents have significant risk of default or illiquidity, and we will continually monitor the credit worthiness of these
financial institutions. While we believe our cash and cash equivalents do not contain excessive risk, future investments may be subject to
adverse changes in market value.

Foreign Exchange Risk

Most of our revenues and expenses are denominated in RMB. We do not believe that we currently have any significant direct foreign
exchange risk and have not used any derivative financial instruments to hedge exposure to such risk. Although our exposure to foreign
exchange risks should be limited in general, the value of your investment in our ADSs will be affected by the exchange rate between U.S.
dollar and RMB because the value of our business is effectively denominated in RMB, while our ADSs will be traded in U.S. dollars.

The conversion of RMB into foreign currencies, including U.S. dollars, is based on rates set by the People’s Bank of China. The
RMB has fluctuated against the U.S. dollar, at times significantly and unpredictably. It is difficult to predict how market forces or PRC or
U.S. government policy may impact the exchange rate between RMB and the U.S. dollar in the future.

To the extent that we need to convert U.S. dollars into RMB for our operations, appreciation of the RMB against the U.S. dollar
would have an adverse effect on the RMB amount we receive from the conversion. Conversely, if we decide to convert RMB into U.S.
dollars for the purpose of making payments for dividends on our ordinary shares or ADSs or for other business purposes, appreciation of
the U.S. dollar against the RMB would have a negative effect on the U.S. dollar amounts available to us.

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As  of  December  31,  2022,  we  had  RMB-denominated  cash  and  cash  equivalents,  restricted  cash  and  short-term  investments  of
RMB1,744.0  million  (US$252.9  million).  A  10%  depreciation  of  RMB  against  U.S.  dollar  based  on  the  foreign  exchange  rate  on
December 30, 2022 would result in a decrease of US$25.3 million in cash and cash equivalents. A 10% appreciation of RMB against
U.S. dollar based on the foreign exchange rate on December 30, 2022 would result in an increase of US$25.3 million in cash and cash
equivalents.

ITEM 12. DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

A.   Debt Securities

Not applicable.

B.   Warrants and Rights

Not applicable.

C.   Other Securities

Not applicable.

D.   American Depositary Shares

Charges Our ADS Holders May Have to Pay

The  depositary  of  our  ADS  facility,  Citibank,  N.A.,  charges  the  following  fees  for  the  services  performed  under  the  terms  of  the

deposit agreement:

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ADS Fees

The following ADS fees are payable under the terms of the Deposit Agreement:

Service

Rate

By Whom Paid

(1) Issuance of ADSs ( e.g., an issuance
upon  a  deposit  of  Shares,  upon  a
change  in  the  ADS(s)-to-Share(s)
ratio,  or  for  any  other  reason),
excluding  issuances  as  a  result  of
distributions  described  in  paragraph
(4) below.

(2) Cancellation  of  ADSs  (  e.g.,  a
cancellation  of  ADSs  for  Delivery
of  deposited  Shares,  upon  a  change
in  the  ADS(s)-to-Share(s)  ratio,  or
for any other reason).

(3) Distribution  of  cash  dividends  or
other  cash  distributions  (  e.g.,  upon
a 
and  other
rights 
sale  of 
entitlements).

(4) Distribution of ADSs pursuant to (i)
stock  dividends  or  other  free  stock
distributions,  or  (ii)  an  exercise  of
rights to purchase additional ADSs.

(5) Distribution  of  securities  other  than
ADSs  or 
to  purchase
rights 
additional  ADSs  (  e.g.,  spin-off
shares).

(6) ADS Services.

(7) Registration of ADS Transfers ( e.g.,
upon a registration of the transfer of
registered ownership of ADSs, upon
a  transfer  of  ADSs  into  DTC  and
vice versa , or for any other reason).

conversion 

(8) Conversion  of  ADSs  of  one  series
for  ADSs  of  another  series  (  e.g.,
Partial
upon 
Full
Entitlement  ADSs 
Entitlement  ADSs, 
upon
conversion  of  Restricted  ADSs  into
freely  transferable  ADSs,  and  vice
versa ).

for 
or 

of 

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) issued.

Person for whom ADSs are issued.

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) cancelled.

Person for whom ADSs are being cancelled.

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) held.

Person to whom the distribution is made.

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) held.

Person to whom the distribution is made.

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) held.

Person to whom the distribution is made.

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) held on the applicable record date(s)
established by the Depositary.

Person  holding  ADSs  on  the  applicable
record date(s) established by the Depositary.

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) transferred.

Person  for  whom  or  to  whom  ADSs  are
transferred.

Up  to  US$5.00  per  100  ADSs  (or  fraction
thereof) converted.

Person  for  whom  ADSs  are  converted  or  to
whom the converted ADSs are delivered.

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Charges

An ADS holder will also be responsible for the following ADS charges:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

taxes (including applicable interest and penalties) and other governmental charges;

such registration fees as may from time to time be in effect for the registration of Shares or other Deposited Securities on
the share register and applicable to transfers of Shares or other Deposited Securities to or from the name of the Custodian,
the Depositary or any nominees upon the making of deposits and withdrawals, respectively;

such cable, telex and facsimile transmission and delivery expenses as are expressly provided in the Deposit Agreement to
be  at  the  expense  of  the  person  depositing  Shares  or  withdrawing  Deposited  Property  or  of  the  Holders  arid  Beneficial
Owners of ADSs;

in  connection  with  the  conversion  of  Foreign  Currency,  the  fees,  expenses,  spreads,  taxes  and  other  charges  of  the
Depositary and/or conversion service providers (which may be a division, branch or Affiliate of the Depositary). Such fees,
expenses, spreads, taxes, and other charges should be deducted from the Foreign Currency;

any  reasonable  and  customary  out-of-pocket  expenses  incurred  in  such  conversion  and/or  on  behalf  of  the  Holders  and
Beneficial Owners in complying with currency exchange control or other governmental requirements; and

the  fees,  charges,  costs  and  expenses  incurred  by  the  Depositary,  the  Custodian,  or  any  nominee  in  connection  with  the
ADR program.

The above fees and charges may at any time and from time to time be changed by agreement between the Depositary and us.

Fees and Other Payments Made by the Depositary to Us

Our depositary anticipates to reimburse us for certain expenses we incur in respect of the ADR program established pursuant to the
Deposit  Agreement,  by  making  available  a  portion  of  the  ADS  fees  charged  in  respect  of  the  ADR  program  or  otherwise,  upon  such
terms  and  conditions  as  the  Depositary  agrees  with  us  from  time  to  time.  As  of  the  date  of  this  annual  report,  we  have  received
approximately US$3.7 million from the depositary.

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ITEM 13. DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES

PART II

None.

ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

See  “Item  10.  Additional  Information—B.  Memorandum  and  Articles  of  Association”  for  a  description  of  the  rights  of  securities

holders, which remain unchanged.

ITEM 15. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our acting chief executive officer and interim chief financial officer, has performed an
evaluation of the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) as of the
end of the period covered by this report, as required by Rule 13a-15(b) under the Exchange Act.

Based upon that evaluation, our management has concluded that, as of December 31, 2022, our disclosure controls and procedures
were effective in ensuring that the information required to be disclosed by us in the reports that we file and furnish under the Exchange
Act  was  recorded,  processed,  summarized  and  reported,  within  the  time  periods  specified  in  the  SEC’s  rules  and  forms,  and  that  the
information  required  to  be  disclosed  by  us  in  the  reports  that  we  file  or  submit  under  the  Exchange  Act  is  accumulated  and
communicated  to  our  management,  including  our  acting  chief  executive  officer  and  interim  chief  financial  officer,  to  allow  timely
decisions regarding required disclosure.

Management’s Annual Report on Internal Control over Financial Reporting

Our  management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial  reporting  as  defined  in
Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended. Our internal control over financial reporting is a
process  designed  to  provide  reasonable  assurance  regarding  the  reliability  of  our  financial  reporting  and  the  preparation  of  financial
statements for external purposes in accordance with Generally Accepted Accounting Principles (GAAP) in the United States of America
and includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of our company; (2) provide reasonable assurance that transactions are recorded as
necessary to permit preparation of consolidated financial statements in accordance with GAAP, and that receipts and expenditures of our
company are being made only in accordance with authorizations of our management and directors; and (3) provide reasonable assurance
regarding prevention or timely detection of the unauthorized acquisition, use or disposition of our company’s assets that could have a
material effect on the consolidated financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  Also,
projections of any evaluation of effectiveness to future periods are subject to the risks that controls may become inadequate because of
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As  required  by  Section  404  of  the  Sarbanes-Oxley  Act  of  2002  and  related  rules  as  promulgated  by  the  Securities  and  Exchange
Commission, our management including our acting chief executive officer and interim chief financial officer assessed the effectiveness
of internal control over financial reporting as of December 31, 2022 using the criteria set forth in the report “Internal Control—Integrated
Framework (2013)” published by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this evaluation,
management concluded that our internal control over financial reporting was effective as of December 31, 2022.

Attestation Report of the Registered Public Accounting Firm

The effectiveness of internal control over financial reporting as of December 31, 2022 has been audited by PricewaterhouseCoopers
Zhong  Tian  LLP,  an  independent  registered  public  accounting  firm,  who  has  also  audited  our  consolidated  financial  statements  for
the year ended December 31, 2022.

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Changes in Internal Control over Financial Reporting

There were no changes in our internal controls over financial reporting that occurred during the period covered by this annual report

on Form 20-F that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16A. AUDIT COMMITTEE FINANCIAL EXPERT

Our  board  of  directors  has  determined  that  Conor  Chia-hung  Yang,  a  member  of  our  audit  committee  and  independent  director
(under the standards under Rule 5605(c)(2) of the Nasdaq Stock Market Rules and Rule 10A-3 under the Securities Exchange Act of
1934), is an audit committee financial expert.

ITEM 16B. CODE OF ETHICS

Our  board  of  directors  adopted  a  code  of  business  conduct  and  ethics  that  applies  to  our  directors,  officers  and  employees  in

November 2019. We have posted a copy of our code of business conduct and ethics on our website at http://ir.i-mabbiopharma.com/.

ITEM 16C. PRINCIPAL ACCOUNTANT FEES AND SERVICES

The  following  table  sets  forth  the  aggregate  fees  by  categories  specified  below  in  connection  with  certain  professional  services
rendered  by  PricewaterhouseCoopers  Zhong  Tian  LLP,  our  principal  external  auditors,  for  the  periods  indicated.  We  did  not  pay  any
other fees to our auditors during the periods indicated below.

For the Year Ended December 31,

2021

2022

Audit fees (1)
Tax fees (2)
All other fees

Notes:

(in thousands of RMB)
 7,730

 75  
 —  

 5,450
 86
 —

(1) “Audit fees” means the aggregate fees billed for professional services rendered by our principal auditors for the audit of our annual
financial statements and the review of our comparative interim financial statements, including audit fees relating to our planned dual
listing.

(2) “Tax fees” includes fees billed for tax consultations.

The policy of our audit committee is to pre-approve all audit and other service provided by PricewaterhouseCoopers Zhong Tian
LLP as described above, other than those for de minimis services which are approved by the audit committee prior to the completion of
the audit.

ITEM 16D. EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES

None.

ITEM 16E. PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

On  July  29,  2021,  we  announced  that  our  board  of  directors  has  authorized  a  stock  repurchase  program,  under  which  we  may
repurchase up to US$40 million of our ordinary shares in the form of ADS for a 12-month period. The stock repurchase program became
effective on September 12, 2022, the date on which a formal stock repurchase plan engagement agreement was signed with a qualified
broker-dealer(s),  and  terminates  over  a  twelve-month  period  depending  upon  market  and  economic  conditions,  and  other  factors
including price, legal and regulatory requirements and capital availability. The program does not obligate I-Mab to acquire any particular
number of its ADSs, and the program may be modified or suspended at any time at the management’s discretion.

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In 2022, we purchased an aggregate of 718,496 ADSs under our stock repurchase program. The table below is a summary of the

shares repurchased by us in 2022. All shares were repurchased in the open market pursuant to the authorized stock repurchase program.

Period
September 2022
October 2022
November 2022
Total

Total Number of

Average Price ADSs Purchased as 
Part of the Publicly
 Announced Plan

 Paid Per
ADS

Approximate 
Dollar Value
of ADSs that May 
Yet bePurchased
Under the Plan

 US$4.83  
US$3.77  
 US$4.37  
US$4.18  

 242,411   US$38.8 million
 654,203   US$37.7 million
 718,496   US$37.0 million
 718,496   US$37.0 million

Total Number of 
ADSs Purchased
 242,411  
 411,792  
 64,293  
 718,496  

ITEM 16F. CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT

Not applicable.

ITEM 16G. CORPORATE GOVERNANCE

As  a  Cayman  Islands  company  listed  on  Nasdaq,  we  are  subject  to  the  Nasdaq  corporate  governance  listing  standards.  However,
Nasdaq rules permit a foreign private issuer like us to follow the corporate governance practices of its home country. Certain corporate
governance practices in the Cayman Islands, which is our home country, may differ significantly from the Nasdaq corporate governance
listing standards.

In lieu of (i) the requirements of Rule 5605(b) of the Nasdaq Rules that a majority of a Nasdaq-listed company’s board of directors
be  independent  directors  as  defined  in  Rule  5605(a)(2),  (ii)  the  requirements  of  Rule  5605(d)  that  a  compensation  committee  be
comprised solely of independent directors, (iii) the requirements of Rule 5605(e) that a nominating committee be comprised solely of
independent directors, (iv) the requirements of Rule 5620(a) that each Nasdaq-listed company should hold an annual general meeting of
shareholders no later than one year after the end of its fiscal year-end, and (v) the requirements of Rule 5635(c) of the Nasdaq Rules that
shareholder approval be required prior to the issuance of securities when a stock option or purchase plan is to be established or materially
amended or other equity compensation arrangement made or materially amended, pursuant to which stock may be acquired by officers,
directors, employees, or consultants, we have followed and intend to continue to follow our home country practices with respect to the
composition  of  our  board  of  directors  and  board  committees,  annual  shareholders  meeting  as  well  as  the  approval  for  adoption  and
material amendment to our equity-based compensation plans. If we choose to follow any other home country practice in the future, our
shareholders  may  be  afforded  less  protection  than  they  otherwise  would  under  the  Nasdaq  corporate  governance  listing  standards
applicable to U.S. domestic issuers. See “Item 3. Key Information—D. Risk Factors—General Risks Related to Our ADSs—We are a
foreign  private  issuer  within  the  meaning  of  the  rules  under  the  Exchange  Act,  and  as  such  we  are  exempt  from  certain  provisions
applicable to U.S. domestic public companies.”

ITEM 16H. MINE SAFETY DISCLOSURE

Not applicable.

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ITEM 16I. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

On December 16, 2021, the PCAOB issued a report to notify the SEC of its determination that the PCAOB was unable to inspect or
investigate completely registered public accounting firms headquartered in mainland China and Hong Kong, and our auditor was subject
to that determination.

In May 2022, I-Mab was conclusively listed by the SEC as a Commission-Identified Issuer under the HFCAA following the filing of

our annual report on Form 20-F for the fiscal year ended December 31, 2021.

On December 15, 2022, the PCAOB removed mainland China and Hong Kong from the list of jurisdictions where it is unable to
inspect or investigate completely registered public accounting firms. For this reason, we do not expect to be identified as a Commission-
Identified Issuer under the HFCAA after we file this annual report.

To the best of our knowledge, no Cayman Islands governmental entities own any shares of I-Mab as of the date of this annual report.

To the best of our knowledge, no PRC governmental entities own any shares of I-Mab or its subsidiaries as of the date of this annual
report. Therefore, PRC governmental entities do not have a controlling financial interest in I-Mab or its subsidiaries as of the date of this
annual report.

No member of the board of directors of I-Mab or our operating entities is an official of the Chinese Communist Party as of the date

of this annual report.

The currently effective memorandum and articles of association of I-Mab and the equivalent organizing documents of our operating

entities do not contain any charter of the Chinese Communist Party.

ITEM 16J. INSIDER TRADING POLICIES

Not applicable.

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ITEM 17.

FINANCIAL STATEMENTS

PART III

We have elected to provide financial statements pursuant to Item 18.

ITEM 18.

FINANCIAL STATEMENTS

The consolidated financial statements of I-Mab are included at the end of this annual report.

ITEM 19. EXHIBITS

Exhibit
Number
1.1

Description of Document
Sixth Amended and Restated Memorandum and Articles of Association of the Registrant (incorporated herein by reference
to Exhibit 3.2 to the registration statement on Form F-1 (File No. 333-234363) as amended, initially filed with the SEC on
October 29, 2019)

2.1

2.2

2.3

2.4

2.5

2.6

4.1

4.2

4.3

4.4

4.5

4.6

4.7

Registrant’s Specimen American Depositary Receipt (included in Exhibit 2.3)

Registrant’s Specimen Certificate for Ordinary Shares (incorporated herein by reference to Exhibit 4.2 to the registration
statement on Form F-1 (File No. 333-234363), as amended, initially filed with the SEC on October 29, 2019)

Deposit  Agreement  dated  as  of  January  22,  2020,  among  the  Registrant  the  depositary  and  holder  of  the  American
Depositary  Receipt  (incorporated  herein  by  reference  to  Exhibit  4.3  to  the  registration  statement  on  Form  S-8  (File  No.
333-239871), as amended initially filed with the SEC on July 15, 2020)

Fourth Amended and Restated Shareholders Agreement, dated as of July 25, 2019 between the Registrant and other parties
thereto (incorporated herein by reference to Exhibit 4.4 to the registration statement on Form F-1 (File No. 333-234363), as
amended, initially filed with the SEC on October 29 2019)

Description of American Depositary Shares of the Registrant (incorporated herein by reference to Exhibit 2.5 to the annual
report on Form 20-F (File No. 001-39173), as amended, initially filed with the SEC on April 29, 2020)

Description of Ordinary Shares of the Registrant (incorporated herein by reference to Exhibit 2.6 to the annual report on
Form 20-F (File No. 001-39173) as amended initially filed with the SEC on April 29, 2020)

Second Amended and Restated 2017 Employee Stock Option Plan (incorporated herein by reference to Exhibit 10.1 to the
registration statement on Form F-1 (File No. 333-234363) as amended, initially filed with the SEC on October 29, 2019)

Second Amended and Restated 2018 Employee Stock Option Plan (incorporated herein by reference to Exhibit 10.2 to the
registration statement on Form F-1 (File No. 333-234363), as amended, initially filed with the SEC on October 29, 2019)

2019  Share  Incentive  Plan  (incorporated  herein  by  reference  to  Exhibit  10.22  to  the  registration  statement  on  Form  F-1
(File No. 333-234363), as amended, initially filed with the SEC on October 29, 2019)

2020 Share Incentive Plan (incorporated herein by reference to Exhibit 10.4 to the registration statement on Form S-8 (File
No. 333-239871), as amended, initially filed with the SEC on July 15, 2020)

2021 Share Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the registration statement on Form S-8 (File
No. 333-256603), as amended, initially filed with the SEC on May 28, 2021)

2022 Share Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the registration statement on Form S-8 (File
No. 333-265684), as amended, initially filed with the SEC on June 17, 2022)

Form of Indemnification Agreement, between the Registrant and its directors and executive officers (incorporated herein by
reference to Exhibit 10.3 to the registration statement on Form F-1 (File No. 333-234363), as amended, initially filed with
the SEC on October 29, 2019)

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Exhibit
Number
4.8

4.9

4.10†

4.11

4.12

4.13

4.14†

4.15

4.16

4.17

4.18

4.19†

4.20†

4.21†

Description of Document
Form  of  Employment  Agreement,  between  the  Registrant  and  its  executive  officers  (incorporated  herein  by  reference  to
Exhibit 10.4 to the registration statement on Form F-1 (File No. 333-234363), as amended initially filed with the SEC on
October 29, 2019)

Framework Agreement, dated as of May 26, 2017 among the Registrant and the other parties thereto (incorporated herein
by reference to Exhibit 10.8 to the registration statement on Form F-1 (File No. 333-234363), as amended, initially filed
with the SEC on October 29, 2019)

License  and  Collaboration  Agreement  dated  as  of  November  30,  2017,  between  the  Registrant  and  MorphoSys  AG
(incorporated  herein  by  reference  to  Exhibit  10.13  to  the  registration  statement  on  Form  F-1  (File  No.  333-234363),  as
amended, initially filed with the SEC on October 29, 2019)

Intellectual Property Assignment and License Agreement, dated as of October 16, 2015, between Tasgen Bio-tech (Tianjin)
Co., Ltd. and Genexine Inc. (incorporated herein by reference to Exhibit 10.14 to the registration statement on Form F-1
(File No. 333-234363), as amended, initially filed with the SEC on October 29, 2019)

Intellectual  Property  License  Agreement  dated  as  of  December  22,  2017,  between  the  Registrant  and  Genexine,  Inc.
(incorporated  herein  by  reference  to  Exhibit  10.15  to  the  registration  statement  on  Form  F-1  (File  No.  333-234363),  as
amended, initially filed with the SEC on October 29, 2019)

License and Sublicense Agreement, dated as of November 4, 2016, between the Registrant and Ferring International Center
SA (incorporated herein by reference to Exhibit 10.16 to the registration statement on Form F-1 (File No. 333-234363), as
amended, initially filed with the SEC on October 29, 2019)

License and Collaboration Agreement, dated as of July 26, 2018, between the Registrant and ABL Bio (incorporated herein
by reference to Exhibit 4.12 to the annual report on Form 20-F (File No. 001-39173), as amended initially filed with the
SEC on April 29, 2020)

English  translation  of  Product  Development  Agreement,  dated  as  of  December  10,  2018,  between  I-Mab  Shanghai  and
CSPC Baike (Shandong) Biopharmaceutical Co., Ltd. (incorporated herein by reference to Exhibit 10.19 to the registration
statement on Form F-1 (File No. 333-234363), as amended, initially filed with the SEC on October 29, 2019)

Subscription  Agreement,  dated  as  of  September  3,  2020,  among  the  Registrant  and  certain  affiliates  of  Hillhouse
(incorporated herein by reference to Exhibit 2 of the Schedule 13D (File No. 005-91674) jointly filed by Hillhouse Capital
Advisors, Ltd. and Hillhouse Capital Management, Ltd. with the SEC on September 14, 2020)

Amendment  to  Subscription  Agreement,  dated  as  of  December  17,  2020,  among  the  Registrant  and  certain  affiliates  of
Hillhouse  (incorporated  herein  by  reference  to  Exhibit  5  of  the  Schedule  13D/A  (File  No.  005-91674)  jointly  filed  by
Hillhouse Capital Advisors, Ltd. and Hillhouse Capital Management, Ltd. with the SEC on December 21, 2020)

Form of Subscription Agreement, dated as of September 3, 2020, between the Registrant and certain investors (other than
Hillhouse)  (incorporated  herein  by  reference  to  Exhibit  10.17  to  the  registration  statement  on  Form  F-1  (File  No.  333-
251050), as amended, initially filed with the SEC on December 1, 2020)

License  and  Collaboration  Agreement  dated  as  of  September  3,  2020  among  I-Mab  Shanghai,  I-Mab  US  and  AbbVie
Ireland Unlimited Company (incorporated herein by reference to Exhibit 10.19 to the registration statement on Form F-1
(File No. 333- 251050), as amended, initially filed with the SEC on December 1, 2020)

English  translation  of  Equity  Transfer  and  Investment  Agreement,  dated  as  of  September  15,  2020,  among  I-Mab
Biopharma  (Hangzhou)  Co.,  Ltd.  and  the  other  parties  thereto  (incorporated  herein  by  reference  to  Exhibit  10.20  to  the
registration statement on Form F-1 (File No. 333- 251050), as amended, initially filed with the SEC on December 1, 2020)

English translation of Exclusive Development Manufacture, and Sales Collaboration Agreement, dated as of November 10,
2021,  among  I-Mab  Biopharma  Hong  Kong  Limited,  I-Mab  Biopharma  Co.,  Ltd.,  Jumpcan  Pharmaceutical  Group  Co.,
Ltd. and Jiangsu Jiyuan Medicine Co., Ltd. (incorporated herein by reference to Exhibit 4.24 to the annual report on Form
20-F (File No. 001-39173), as amended, initially filed with the SEC on April 29, 2022)

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Exhibit
Number
4.22†*

4.23*

4.24*

8.1*

11.1

12.1*

12.2*

Description of Document
Amendment No.1 to the License and Collaboration Agreement dated as of August 15, 2022 among I-Mab Shanghai, I-Mab
US and AbbVie Global Enterprise Ltd.

English translation of Investment Agreement, dated as of July 16, 2022, among I-Mab Biopharma (Hangzhou) Co., Ltd.
and other parties thereto

English translation of Shareholders Agreement, dated as of July 16, 2022, among I-Mab Biopharma (Hangzhou) Co., Ltd.
and other parties thereto

Principal Subsidiaries of the Registrant

Code of Business Conduct and Ethics of the Registrant (incorporated herein by reference to Exhibit 99.1 to the registration
statement on Form F-1 (File No. 333-234363), as amended, initially filed with the SEC on October 29, 2019)

Certification by Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Certification by Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

13.1**

Certification by Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

13.2**

Certification by Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

15.1*

15.2*

15.3*

Consent of JunHe LLP

Consent of PricewaterhouseCoopers Zhong Tian LLP

Consent of Harney Westwood & Riegels

101.INS*

Inline XBRL Instance Document—this instance document does not appear in the Interactive Data File because its XBRL
tags are embedded within the Inline XBRL document

101.SCH*

Inline XBRL Taxonomy Extension Schema Document

101.CAL*

Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF*

Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB*

Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE*

Inline XBRL Taxonomy Extension Presentation Linkbase Document

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

*
Filed herewith.
** Furnished herewith.
†

Portions of this exhibit have been omitted pursuant to Item 601(b)(10)(iv) of Regulation S-K.

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The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized

the undersigned to sign this annual report on its behalf.

SIGNATURES

I-MAB

/s/ Richard Yeh

By:
Name: Richard Yeh
Title: Director, Chief Operating Officer and
Interim Chief Financial Officer

Date: May 1, 2023

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I-Mab

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report  of  Independent  Registered  Public  Accounting  Firm  (PricewaterhouseCoopers  Zhong  Tian  LLP,  Shanghai,  China,
Auditor Firm ID:1424)
Consolidated Balance Sheets as of December 31, 2021 and 2022
Consolidated Statements of Comprehensive Income (Loss) for the Years Ended December 31, 2020, 2021 and 2022
Consolidated Statements of Changes in Shareholders’ Equity (Deficit) for the Years Ended December 31, 2020, 2021 and 2022
Consolidated Statements of Cash Flows for the Years Ended December 31, 2020, 2021 and 2022
Notes to the Consolidated Financial Statements

     Page
F-2

F-5
F-6
F-7
F-10
F-13

F-1

Table of Contents

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of I-Mab

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of I-Mab and its subsidiaries (the “Company”) as of December 31, 2022
and 2021, and the related consolidated statements of comprehensive income (loss), of changes in shareholders’  equity  (deficit)  and  of
cash flows for each of the three years in the period ended December 31, 2022, including the related notes (collectively referred to as the
“consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31,
2022,  based  on  criteria  established  in  Internal  Control  -  Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring
Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the
Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period
ended  December  31,  2022  in  conformity  with  accounting  principles  generally  accepted  in  the  United  States  of  America.  Also  in  our
opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2022,
based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The  Company's  management  is  responsible  for  these  consolidated  financial  statements,  for  maintaining  effective  internal  control  over
financial  reporting,  and  for  its  assessment  of  the  effectiveness  of  internal  control  over  financial  reporting,  included  in  Management’s
Annual Report on Internal Control over Financial Reporting appearing under Item 15. Our responsibility is to express opinions on the
Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are
a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to
be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations
of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to
obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error
or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the
consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures
included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits
also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall
presentation  of  the  consolidated  financial  statements.  Our  audit  of  internal  control  over  financial  reporting  included  obtaining  an
understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating
the  design  and  operating  effectiveness  of  internal  control  based  on  the  assessed  risk.  Our  audits  also  included  performing  such  other
procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of
financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles.  A  company’s  internal  control  over  financial  reporting  includes  those  policies  and  procedures  that  (i)  pertain  to  the
maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly  reflect  the  transactions  and  dispositions  of  the  assets  of  the
company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in
accordance  with  generally  accepted  accounting  principles,  and  that  receipts  and  expenditures  of  the  company  are  being  made  only  in
accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention
or  timely  detection  of  unauthorized  acquisition,  use,  or  disposition  of  the  company’s  assets  that  could  have  a  material  effect  on  the
financial statements.

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Table of Contents

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of
any  evaluation  of  effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become  inadequate  because  of  changes  in
conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements
that were communicated or required to be communicated to the audit committee and that (i) relate to accounts or disclosures that are
material  to  the  consolidated  financial  statements  and  (ii)  involved  our  especially  challenging,  subjective,  or  complex  judgments.  The
communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole,
and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the
accounts or disclosures to which they relate.

Accrued Research and Development Expenses

As  described  in  Notes  2.18  and  12  to  the  consolidated  financial  statements,  the  Company  has  entered  into  various  research  and
development contracts with research organizations and other companies. Total research and development costs incurred during the year
ended  December  31,  2022  were  RMB905  million,  and  research  and  development  costs  accrued  were  RMB265  million  as  of
December 31, 2022. Management applied significant judgment in estimating the progress of its research and development activities and
completion  of  or  likelihood  of  achieving  milestone  events  per  underlying  agreements  when  estimating  the  research  and  development
costs to be accrued at each reporting period end.

The principal considerations for our determination that performing procedures relating to accrued research and development expenses is
a critical audit matter are the significant judgment made by management in estimating the accrued research and development expenses,
including the estimation of the progress of its research and development activities and completion of or likelihood of achieving milestone
events per underlying agreements. This in turn led to a relatively high degree of auditor judgement, subjectivity, and effort in performing
procedures relating to management’s estimation of accrued research and development costs and evaluating the related audit evidence.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on
the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the estimation of accrued
research and development costs. These procedures also included, among others, (i) testing management’s process for estimating accrued
research and development costs; (ii) evaluating the appropriateness of the method used by management to develop the estimates; (iii)
evaluating  the  reasonableness  of  the  estimates  related  to  the  progress  of  research  and  development  activities  and  completion  of  or
likelihood of achieving milestone events per underlying agreements; and (iv) testing the completeness and accuracy of underlying data
used to estimate accrued research and development expenses.

Valuation of put right liabilities

As described in Notes 2.4, 10 and 18 to the consolidated financial statements, the put right written by the Company to domestic investors
in its affiliate was recorded as a freestanding equity-linked instrument and classified as put right liabilities. The fair value of the put right
liabilities was determined by management using an option pricing model. The significant unobservable inputs used in the option pricing
model included spot price, estimated volatility and probability of triggering event for redemption option, among which the spot price was
determined  by  management  using  the  market  approach  and  the  expected  volatility  was  estimated  based  on  daily  stock  prices  of  the
comparable companies for a period with length commensurate to the expected terms of redemption event. The significant unobservable
inputs used in the market approach include estimated volatility and probability of triggering event for redemption option. The Company
recognized the put right liabilities of RMB89 million as of December 31, 2022 and the decrease in fair value of the put right liabilities of
RMB34 million during the year ended December 31, 2022.

The principal considerations for our determination that performing procedures relating to the valuation of put right liabilities is a critical
audit  matter  are  the  significant  judgment  made  by  management  in  determining  the  fair  value  of  the  put  right  liabilities  related  to
estimated volatility and probability of triggering event for redemption option, which in turn led to a high degree of auditor judgment,
subjectivity,  and  effort  in  performing  procedures  relating  to  the  fair  value  measurement  of  the  put  right  liabilities  and  evaluating  the
related audit evidence, and the audit effort involved the use of professionals with specialized skill and knowledge.

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Table of Contents

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on
the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s valuation
of the put right liabilities. These procedures also included, among others, testing management’s process for estimating the fair value of
the  put  right  liabilities,  which  included  (i)  evaluating  the  appropriateness  of  the  valuation  methods,  (ii)  testing  the  completeness,
mathematical accuracy and relevance of the underlying data used in the option pricing model and market approach, and (iii) evaluating
the reasonableness of significant assumptions related to estimated volatility and probability of triggering event for redemption option.
The estimated volatility was evaluated by considering the relevance and appropriateness of the comparable company selection for the
volatility calculation. The probability of triggering event for redemption option was evaluated by considering the business development
status and plan of the affiliate.  Professionals with specialized skill and knowledge were used to assist in evaluating the appropriateness
of the Company’s valuation methods and the reasonableness of the significant assumptions related to the estimated volatility applied.

Goodwill impairment assessments

As described in Notes 2.14 and 9 to the consolidated financial statements, the Company’s goodwill balance was RMB163 million as of
December  31,  2022.  Management  performs  impairment  tests  to  assess  the  carrying  value  of  goodwill  on  an  annual  basis  or  more
frequently if events or changes in circumstances indicate that goodwill might be impaired. Where the qualitative assessment indicated
that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill, a quantitative
goodwill impairment test is performed. Goodwill impairment charge is recognized for the amount by which the carrying amount exceeds
the reporting unit’s fair value. Fair value of the reporting unit is estimated by management using a discounted cash flow model. The use
of discounted cash flow model requires management to make judgments and assumptions related to future revenues, discount rate and
terminal  growth  rate.  Based  on  the  goodwill  impairment  test  of  the  Company’s  reporting  unit  as  of  December  31,  2022,  management
determined that the estimated fair value of the reporting unit exceeded its carrying value and therefore, no impairment was recorded.

The  principal  considerations  for  our  determination  that  performing  procedures  relating  to  the  goodwill  impairment  assessments  is  a
critical audit matter are the significant judgment made by management in developing the fair value of the reporting unit. This in turn led
to  a  high  degree  of  auditor  judgment,  subjectivity,  and  effort  in  performing  procedures  and  in  evaluating  management’s  significant
assumptions related to future revenues, discount rate and terminal growth rate, and the audit effort involved the use of professionals with
specialized skill and knowledge.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on
the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s goodwill
impairment assessment process, including controls over the valuation of the Company’s reporting unit. These procedures also included,
among others, testing management’s identification of the reporting unit and the process for developing the fair value estimates, which
included (i) evaluating the appropriateness of the discounted cash flow model, (ii) testing the completeness, accuracy and relevance of
the underlying data used in the discounted cash flow model, and (iii) evaluating the reasonableness of the significant assumptions related
to future revenues, discount rate and terminal growth rate. Evaluating management’s assumptions related to future revenues, discount rate
and terminal growth rate involved evaluating whether the assumptions used by management were reasonable considering the current and
historical performance of the reporting unit; the consistency with relevant industry and market data; and whether these assumptions were
consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in the
evaluation of the Company’s discounted cash flow model, and the discount rate and terminal growth rate assumptions.

/s/PricewaterhouseCoopers Zhong Tian LLP
Shanghai, the People’s Republic of China
May 1, 2023

We have served as the Company’s auditor since 2018.

F-4

Table of Contents

I-MAB
Consolidated Balance Sheets
As of December 31, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Assets
Current assets

Cash and cash equivalents
Restricted cash
Accounts receivable
Contract assets
Short-term investments
Inventories
Prepayments and other receivables

Total current assets

Property, equipment and software
Operating lease right-of-use assets
Intangible assets
Goodwill
Investments accounted for using the equity method
Other non-current assets

Total assets

Liabilities and shareholders’ equity
Current liabilities

Short-term bank borrowings
Accruals and other payables
Contract liabilities, current
Operating lease liabilities, current

Total current liabilities

Put right liabilities
Contract liabilities, non-current
Operating lease liabilities, non-current
Other non-current liabilities

Total liabilities
Commitments and contingencies

Shareholders’ equity

Ordinary  shares  (US$0.0001  par  value,  800,000,000  shares  authorized  as  of
December 31, 2021 and 2022; 183,826,753 and 190,879,919 shares issued  and
outstanding as of December 31, 2021 and 2022, respectively)

Treasury stock
Additional paid-in capital
Accumulated other comprehensive income (loss)
Accumulated deficit

Total shareholders’ equity
Total liabilities and shareholders’ equity

     Notes     

2021
RMB

As of December 31, 
2022
     US$ (Note 2.5)

RMB

2.7
3, 17  
3, 17  
  2.4, 2.9 
4
5

6
7
8
9
10

11
12

7

  2.4, 10  
17
7
12

21

14
14

3,523,632  

—

33,081  
253,780  
753,164  
27,237  
190,824  
4,781,718  
45,716  
112,781  
119,666  
162,574  
352,106  
26,634  
5,601,195  

3,214,005  
96,764

—  
—  
235,429  
—  
80,278  
3,626,476  
60,841  
63,125  
118,888  
162,574  
30,850  
10,911  
4,073,665  

—

593,335  
—  
30,669  
624,004  
96,911  
224,000  
81,786  
14,934  
1,041,635  

18,956
706,572  
8,677  
23,961  
758,166  
88,687  
267,878  
32,069  
16,963  
1,163,763  

465,987
14,029
—
—
34,134
—
11,639
525,789
8,821
9,152
17,237
23,571
4,473
1,582
590,625

2,748
102,443
1,258
3,474
109,923
12,858
38,839
4,650
2,459
168,729

126  
—  

9,100,777
(186,510) 
(4,354,833) 
4,559,560  
5,601,195  

132  
(21,249) 

9,579,375

213,794  
(6,862,150) 
2,909,902  
4,073,665  

19
(3,081)
1,388,879
30,997
(994,918)
421,896
590,625

The accompanying notes are an integral part of these consolidated financial statements.

F-5

    
 
  
 
   
   
  
 
  
 
   
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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I-MAB
Consolidated Statements of Comprehensive Income (Loss)
For the Years Ended December 31, 2020, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Revenues

Licensing and collaboration revenue
Supply of investigational products

Total revenues

Cost of revenues

Expenses

Research and development expenses
Administrative expenses

Income (loss) from operations

Interest income
Interest expense
Other income (expenses), net
Equity in loss of affiliates

Income (loss) before income tax expense

Income tax benefit (expense)

Net income (loss) attributable to I-MAB
Net income (loss) attributable to ordinary shareholders

Net income (loss) attributable to I-MAB
Other comprehensive income (loss):

    Notes    

2020
RMB

Year Ended December 31, 

2021
RMB

2022

RMB

17  
4  

  2.18 

18  
10  

13  

1,542,668  
—  
1,542,668  
—  

(984,689) 
(402,409) 
155,570  
24,228  
(957) 
412,892  
(108,587) 
483,146  
(12,231) 
470,915  
470,915  

40,115  
47,911  
88,026  
(46,432) 

(249,665) 
28,102  
(221,563) 
(27,237) 

(1,212,958) 
(899,943) 
(2,071,307) 
21,333  
—  
83,162  
(367,883) 
(2,334,695) 
3,154  
(2,331,541) 
(2,331,541) 

(904,901) 
(815,766) 
(1,969,467) 
26,908  
(9) 
(126,587) 
(437,465) 
(2,506,620) 
(697) 
(2,507,317) 
(2,507,317) 

US$
(Note 2.5)

(36,198)
4,074
(32,124)
(3,949)

(131,198)
(118,275)
(285,546)
3,901
(1)
(18,353)
(63,426)
(363,425)
(101)
(363,526)
(363,526)

470,915  

(2,331,541) 

(2,507,317) 

(363,526)

Foreign currency translation adjustments, net of nil tax

Total comprehensive income (loss) attributable to I-MAB

(120,920) 
349,995  

(135,717) 
(2,467,258) 

400,304  
(2,107,013) 

58,039
(305,487)

Net income (loss) attributable to ordinary shareholders
Weighted-average number of ordinary shares used in calculating

470,915  

(2,331,541) 

(2,507,317) 

(363,526)

net income (loss) per share - basic

19   134,158,824   174,707,055   189,787,292  

189,787,292

Weighted-average number of ordinary shares used in calculating

net income (loss) per share - diluted

19   157,231,652   174,707,055   189,787,292  

189,787,292

Net 

income  (loss)  per  share  attributable  to  ordinary

shareholders
—Basic
—Diluted

Net 

income  (loss)  per  ADS  attributable  to  ordinary

shareholders
—Basic
—Diluted

19  
19  

3.51  
3.00  

8.07  
6.90  

(13.35) 
(13.35) 

(13.21) 
(13.21) 

(30.71) 
(30.71) 

(30.38) 
(30.38) 

(1.92)
(1.92)

(4.41)
(4.41)

The accompanying notes are an integral part of these consolidated financial statements.

F-6

    
    
    
 
  
 
   
   
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

I-MAB
Consolidated Statements of Changes in Shareholders’ Equity (Deficit)
For the Years Ended December 31, 2020, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Ordinary share
(Note 14)
(US$0.0001 par value)
Number of
shares

Treasury

    Amount    
stock     
     RMB      RMB     

Accumulated
other

  Additional

  comprehensive

Balance as of December 31, 2019

Foreign currency translation adjustments
Net income
Share-based compensation of I-Mab
Exercise of stock options
Issuance  of  ordinary  shares  for  restricted

share units (Note 16)

Conversion  from  convertible  promissory

notes

Capital  contribution  from  stock  option

surrender (Note 16)

Conversion of preferred shares to ordinary
shares  upon  the  completion  of  initial
public offering (“IPO”)

Issuance of ordinary shares to Everest
Issuance of ordinary shares upon IPO and

8,363,719  
—  
—  
—
1,841,373

7,000

900,000

—

99,760,129
6,078,571

over-allotment, net of issuance cost

18,804,225

Issuance  of  ordinary  shares  upon  private

6  
—  
—  
—
3

—

1

—

69
4

13

paid-in
capital
RMB
389,379  
—  
—  

402,413
7,771

46

58,825

91,051

—  
—  
—  
—
—

—

—

—

— 3,104,108
254,844
—

—

697,865

Accumulated  
deficit
RMB
(2,494,207) 
—  
470,915  

—
—

—

—

—

Total
shareholders’
equity
(deficit)
RMB
(2,034,695)
(120,920)
470,915
402,413
7,774

46

58,826

91,051

— 3,104,177
254,848
—

—

697,878

income
(loss) 
RMB
70,127  
(120,920) 
—  
—
—

—

—

—

—
—

—

placement, net of issuance cost

29,133,502  

18  

—   2,543,908  

—  

—  

2,543,926

share 

Proportionate 

share-based
compensation  expenses  recorded  in  an
equity method affiliate (Note 10 (a))

of 

Issuance of warrants

Balance as of December 31, 2020

—  
—  
  164,888,519  

—  
—  
114  

41,163  
—  
—  
109,743  
—   7,701,116  

—  
—  
(50,793) 

—  
—  
(2,023,292) 

41,163
109,743
5,627,145

F-7

 
 
    
    
    
    
    
    
    
    
 
 
 
 
 
 
Table of Contents

I-MAB
Consolidated Statements of Changes in Shareholders’ Equity (Deficit) (Continued)
For the Years Ended December 31, 2020, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Ordinary share
(Note 14)
(US$0.0001 par value)
Number of
shares

Amount

Treasury
stock

     RMB      RMB     

Additional
paid-in
capital
RMB

Balance as of December 31, 2020

Foreign currency translation adjustments
Net loss
Share-based compensation of I-Mab
Exercise of stock options
Issuance  of  ordinary  shares  for  restricted

  164,888,519  
—  
—  
—  
8,227,843  

share units (Note 16 (f))

Exercise of warrants (Note 15)
shares 
Ordinary 

surrendered  by 

a

5,369,140  
5,341,267  

114  
—  
—  
—  
5  

4  
3  

(16) 

—  

—   7,701,116  
—  
—  
—  
—  
608,609  
—  
51,310  
—  

—  
—  

—  

8,547  
672,661  

—  

shareholder
Proportionate 

share 

share-based
compensation  expenses  recorded  in  an
equity method affiliate (Note 10 (a))

of 

Balance as of December 31, 2021

Accumulated
other
comprehensive
income
(loss)
RMB
(50,793) 
(135,717) 
—  
—  
—  

Accumulated
deficit
RMB
(2,023,292) 
—  
(2,331,541) 
—  
—  

Total
shareholders’
equity
RMB
5,627,145
(135,717)
(2,331,541)
608,609
51,315

—  
—  

—  

—  
—  

—  

8,551
672,664

—

—  
  183,826,753  

—  
126  

—  
58,534  
—   9,100,777  

—  
(186,510) 

—  
(4,354,833) 

58,534
4,559,560

F-8

 
    
    
    
    
 
 
 
 
 
 
 
 
Table of Contents

I-MAB
Consolidated Statements of Changes in Shareholders’ Equity (Deficit) (Continued)
For the Years Ended December 31, 2020, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Ordinary share
(Note 14)
(US$0.0001 par value)
Number of
shares

Amount    

     RMB

  183,826,753  

126

—  
—  

—  
6,845,888  

—
—

—
5

—  

—  
—  

—  
—  

—  
—  

—  
—  

1,859,819  

1

—  

—  

—  

— (1,652,541) 

(21,249) 

Treasury stock

Number of
shares

Amount
     RMB     

Additional
paid-in
capital
RMB

Accumulated
other
comprehensive
income
(loss) 
RMB

Accumulated
deficit
RMB

Total
shareholders’
equity
RMB

—   9,100,777  

(186,510) 

(4,354,833) 

4,559,560

—  
—  

400,304  
—  

—  
(2,507,317) 

400,304
(2,507,317)

357,148  
44,645  

(1) 

—  

—  
—  

—  

—  

—  
—  

—  

—  

357,148
44,650

—

(21,249)

Balance  as  of  December

31, 2021
Foreign 

currency

translation adjustments

Net loss
Share-based  compensation

of I-Mab

Exercise of stock options
Issuance 
of 
for 
shares 
share units (Note 16)

ordinary
restricted

of 

shares

share  of

Repurchase 
(Note 14)
Proportionate 
share-based
compensation  expenses
recorded  in  an  equity
method affiliate (Note 10
(a))

—  

—

—  

—  

76,806  

—  

—  

76,806

Balance  as  of  December

31, 2022

  192,532,460  

132

(1,652,541) 

(21,249)  9,579,375  

213,794  

(6,862,150) 

2,909,902

The accompanying notes are an integral part of these consolidated financial statements.

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Table of Contents

I-MAB
Consolidated Statements of Cash Flows
For the Years Ended December 31, 2020, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Cash flows from operating activities
Net income (loss)
Adjustments to reconcile net income (loss) to net cash used in operating

activities
Depreciation of property, equipment and software
Amortization of intangible assets
Loss  on  disposal  of  property,  equipment  and  operating  lease  right-of-use

asset

Fair value change of put right liabilities
Equity in loss of affiliates
Share-based compensation
Amortization of right-of use assets and interest of lease liabilities
Recognition of deferred cost for planned dual listing
Gains on deconsolidation of a subsidiary
Fair value change of short-term and other investments
Changes in operating assets and liabilities

Accounts receivable
Contract assets
Prepayments and other receivables
Inventories
Accruals and other payables
Contract liabilities
Other non-current liabilities
Deferred subsidy income
Lease liabilities

Net cash generated from (used in) operating activities
Cash flows from investing activities

Purchase of property, equipment and software
Proceeds from disposal of property and equipment
Capital injection in an affiliate
Proceeds from disposal of short-term and other investments
Purchase of short-term and other investments
Cash disposed of resulting from deconsolidation of a subsidiary
Cash received from repayment of loans due from an affiliate

Net cash generated from (used in) investing activities

F-10

2020
RMB

Year Ended December 31, 

2021
RMB

2022

RMB

US$
(Note 2.5)

470,915  

(2,331,541) 

(2,507,317) 

(363,526)

12,743  
1,556  

13,776  
778  

25,340  
778  

8  
(3,024) 
108,587  
493,464  
8,837  
—

(407,598) 
(11,288) 

(130,498) 
(227,391) 
(58,692) 
—  
173,713  
—  
7,474  
3,589  
(8,837) 
433,558  

288  
(16,628) 
367,883  
608,609  
19,582  

—
—  
(30,360) 

97,417  
(26,389) 
(5,155) 
(27,237) 
152,101  
224,000  
5,959  
(7,509) 
(18,667) 
(973,093) 

117  
(34,260) 
437,465  
357,148  
37,698  
14,613

—  
13,549  

33,081  
253,780  
109,226  
27,237  
109,863  
52,555  
2,029  
—  
(35,707) 
(1,102,805) 

3,674
113

17
(4,967)
63,426
51,782
5,466
2,119
—
1,964

4,796
36,795
15,835
3,949
15,928
7,620
294
—
(5,177)
(159,892)

(8,008) 

(29,932) 

(45,830) 

—
—  
2,503,749  
(2,491,991) 
(257,651) 
52,000  
(201,901) 

—

(6,000) 
9,482,040  
(10,173,314) 
—  
—  
(727,206) 

26
—  
7,911,518  
(7,407,332) 
—  
—  
458,382  

(6,645)
4
—
1,147,062
(1,073,962)
—
—
66,459

    
    
    
    
 
   
   
   
  
 
 
   
   
   
  
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
Table of Contents

I-MAB
Consolidated Statements of Cash Flows (Continued)
For the Years ended December 31, 2020, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Year Ended December 31, 

2020
RMB

2021
RMB

2022

RMB

Cash flows from financing activities

Proceeds  from  initial  public  offering  and  over-allotment,  net  of  underwriting

discounts and commissions

Payment of issuance cost for initial public offering and over-allotment
Proceeds from private placement
Payments of the issuance cost in relation to private placement
Payments of cost in relation to planned dual listing
Proceeds from exercise of warrants
Proceeds from exercise of stock options
Proceeds from issuance of ordinary shares for restricted share units
Proceeds from bank borrowings
Repayment of bank borrowings
Payment for stock repurchase
Prepayment for stock repurchase
Cash received from collection of prepayment for stock repurchase program

Net cash generated from financing activities
Effect of exchange rate changes on cash, cash equivalents and restricted cash  
Net increase (decrease) in cash, cash equivalents and restricted cash

Cash, cash equivalents and restricted cash, beginning of year
Cash, cash equivalents and restricted cash, end of the year

F-11

726,300  
(27,595) 
  2,789,699  
(7,244) 
—  
—  
9,275  
46  
—  
(50,000) 

—

(34,859) 
34,859  
  3,440,481  
(106,643) 
  3,565,495  
  1,193,283  
  4,758,778  

—  
—  
—  
—  
—  
—  
—  
(128,786) 
—  
(9,820) 
—  
672,664  
44,650  
51,315  
—  
8,551  
18,956  
—  
—  
—  
(21,249)
—
—  
—  
—  
—  
42,357  
593,924  
389,203  
(128,771) 
(1,235,146) 
(212,863) 
4,758,778   3,523,632  
3,523,632   3,310,769  

US$
(Note 2.5)

—
—
—
—
—
—
6,474
—
2,748
—
(3,081)
—
—
6,141
56,429
(30,863)
510,879
480,016

    
    
    
    
 
   
   
   
  
 
 
 
 
 
 
 
 
 
 
 
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I-MAB
Consolidated Statements of Cash Flows (Continued)
For the Years ended December 31, 2020, 2021 and 2022
(All amounts in thousands, except for share and per share data, unless otherwise noted)

Additional ASC 842 supplemental disclosures

Cash  paid  for  fixed  operating  lease  costs  included  in  the  measurement  of  lease

obligations in operating activities

Right-of-use assets obtained in exchange for operating lease obligations

Other supplemental cash flow disclosures

Interest paid
Income tax paid
Non-cash activities

Payables for purchase of property, equipment and software
Accrued planned dual listing costs payable
Recognition of put right liabilities
Accrued private placement offering costs payable
Ordinary shares issued to Everest
Conversion of preferred shares to ordinary shares
Conversion of convertible promissory notes to ordinary shares

2020
RMB

Year Ended December 31,

2021
RMB

2022

RMB

US$
(Note 2.5)

8,837  
7,459  

18,667  
118,436  

35,707  
9,888  

5,177
1,434

957  
—

—  
—  
—

128,786  
254,848  
3,104,177  
58,826  

—  

9,077

6,679  
4,793  
—
—  
—  
—  
—  

—  
—

7,124  
—  

17,729

—  
—  
—  
—  

—
—

1,033
—
2,570
—
—
—
—

The accompanying notes are an integral part of these consolidated financial statements.

F-12

    
    
    
    
 
   
   
   
  
 
 
 
   
   
 
  
 
 
   
   
   
  
 
 
 
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

1. PRINCIPAL ACTIVITIES AND ORGANIZATION

I-Mab (the “Company”) was incorporated in the Cayman Islands on June 30, 2016 as an exempted company with limited liability under
the  Companies  Act  of  the  Cayman  Islands.  The  Company  and  its  subsidiaries  (together  the  “Group”)  are  principally  engaged  in
discovering  and  developing  transformational  biologics  in  the  fields  of  immuno-oncology  and  immuno-inflammation  diseases  in  the
People’s Republic of China (the “PRC”) and other countries and regions.

On January 17, 2020, the Company consummated its IPO on the Nasdaq Global Market, where 7,407,400 American Depositary Shares
(“ADSs”)  were  issued  at  the  price  of  US$14.00  per  ADS  for  total  gross  proceeds  of  US$103.7  million.  On  February  10,  2020,  the
underwriters of the IPO have exercised their over-allotment option to purchase an additional 768,350 ADSs of the Company at the IPO
price of US$14.00 per ADS. After giving effect to the exercise of the over-allotment option, the Company has issued and sold a total of
8,175,750 ADSs in the IPO, for total gross proceeds of US$114.5 million. Each ten ADSs represents twenty-three ordinary shares of the
Company.

As of December 31, 2022, the Company’s principal subsidiaries are as follows:

Subsidiaries
I-Mab  Biopharma  Hong  Kong
(“I-Mab  Hong

Limited 
Kong”)

I-Mab  Biopharma  Co.,  Ltd.

(“I-Mab Shanghai”)

I-Mab  Bio-tech  (Tianjin)  Co.,

Ltd. (“I-Mab Tianjin”)
I-Mab Biopharma US Ltd.
Zhejiang Tianli Pharmaceutical

Sales Co., Ltd.

Place of
incorporation

Date of
incorporation or
acquisition

    Percentage     
of direct
or indirect
ownership
by the
Company

Principal activities

  Hong Kong

July 8, 2016  

100 %  

Investment holding

PRC

August 24, 2016  

100 %   Research and development of innovative medicines

PRC
U.S.

July 15, 2017  
February 28, 2018  

100 %   Research and development of innovative medicines
100 %   Research and development of innovative medicines

PRC September 29,2021  

100 %  

Sales and distribution of medicine products

2. PRINCIPAL ACCOUNTING POLICIES

2.1 Basis of presentation

The  accompanying  consolidated  financial  statements  of  the  Group  have  been  prepared  in  accordance  with  the  accounting  principles
generally accepted in the United States of America (“U.S. GAAP”).

Significant  accounting  policies  followed  by  the  Group  in  the  preparation  of  the  accompanying  consolidated  financial  statements  are
summarized below.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.2 Basis of consolidation

The  accompanying  consolidated  financial  statements  reflect  the  accounts  of  the  Company  and  all  of  its  subsidiaries  in  which  a
controlling interest is maintained. All inter-company balances and transactions have been eliminated in consolidation.

The Group consolidates entities in which it has a controlling financial interest based on either the variable interest entity (VIE) or voting
interest model. The Group is required to first apply the VIE model to determine whether it holds a variable interest in an entity, and if so,
whether the entity is a VIE. If the Group determines it does not hold a variable interest in a VIE, it then applies the voting interest model.
Under the voting interest model, the Group consolidates an entity when it holds a majority voting interest in an entity.

The  Company  accounts  for  investments  in  which  it  has  significant  influence  but  not  a  controlling  financial  interest  using  the  equity
method of accounting (see Note 10).

VIE Model

An entity is considered to be a VIE if any of the following conditions exist: (a) the total equity investment at risk is not sufficient to
permit  the  entity  to  finance  its  activities  without  additional  subordinated  financial  support,  (b)  the  holders  of  the  equity  investment  at
risk, as a group, lack either the direct or indirect ability through voting rights or similar rights to make decisions that have a significant
effect on the success of the entity or the obligation to absorb the entity’s expected losses or right to receive the entity’s expected residual
returns, or (c) the voting rights of some equity investors are disproportionate to their obligation to absorb losses of the entity, their rights
to receive returns from an entity, or both and substantially all of the entity’s activities either involve or are conducted on behalf of an
investor with disproportionately few voting rights.

Under  the  VIE  model,  limited  partnerships  are  considered  VIE  unless  the  limited  partners  hold  substantive  kick-out  or  participating
rights over the general partner. The Group consolidates entities that are VIEs when the Group determines it is the primary beneficiary.
Generally, the primary beneficiary of a VIE is a reporting entity that has (a) the power to direct the activities that most significantly affect
the  VIE’s  economic  performance,  and  (b)  the  obligation  to  absorb  losses  of,  or  the  right  to  receive  benefits  from,  the  VIE  that  could
potentially be significant to the VIE.

As of December 31, 2022, the Group determined that the one entity subject to the consolidation guidance is a VIE for which the Group is
not the primary beneficiary.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.3 Use of estimates

The  preparation  of  the  consolidated  financial  statements  in  conformity  with  U.S.  GAAP  requires  management  to  make  estimates  and
assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities at the date of
the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used
when accounting for amounts recorded in connection with acquisitions, including initial fair value determinations of assets and liabilities
and other intangible assets as well as subsequent fair value measurements. Additionally, estimates are used in determining items such as
fair value measurements of short-term investments, warrants and put right liabilities, impairment of accounts receivables, contract assets,
other receivables, long-lived assets, intangible assets and goodwill, useful lives of property, equipment and software, recognition of right-
of-use  assets  and  lease  liabilities,  accrued  research  and  development  expenses,  cost-to-cost  measure  of  progress  for  over  time
performance obligations, variable consideration in collaboration revenue arrangements, determination of the standalone selling price of
each performance obligation in the Company’s revenue arrangements, valuation of share-based compensation arrangements, deferred tax
assets valuation allowances and provision for ongoing litigation. Management bases the estimates on historical experience, known trends
and various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the
carrying values of assets and liabilities. Actual results could differ from those estimates.

2.4 Fair value measurements

Financial  assets  and  liabilities  of  the  Group  primarily  comprise  of  cash  and  cash  equivalents,  restricted  cash,  short-term  investments,
accounts receivable, contract assets, other receivables, short-term borrowings, accruals and other payables, contract liabilities, put right
liabilities,  and  other  non-current  liabilities.  As  of  December  31,  2021  and  2022,  except  for  short-term  investments  and  put  right
liabilities,  the  carrying  values  of  these  financial  assets  and  liabilities  approximated  their  fair  values  because  of  their  generally  short
maturities. The Group reports short-term investments and put right liabilities at fair value at each balance sheet date and changes in fair
value are reflected in the consolidated statements of comprehensive income (loss).

The Group measures its financial assets and liabilities using inputs from the following three levels of the fair value hierarchy. The three
levels are as follows:

Level 1 inputs are unadjusted quoted prices in active markets for identical assets that the management has the ability to access at the
measurement date.

Level 2 inputs include quoted prices for similar assets in active markets, quoted prices for identical or similar assets in markets that are
not  active,  inputs  other  than  quoted  prices  that  are  observable  for  the  asset  (i.e.,  interest  rates,  yield  curves,  etc.),  and  inputs  that  are
derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).

Level 3 includes unobservable inputs that reflect the management’s assumptions about the assumptions that market participants would
use in pricing the asset. The management develops these inputs based on the best information available, including the own data.

Assets and liabilities measured at fair value on a recurring basis

The  Group  measures  its  short-term  investments  and  put  right  liabilities  at  fair  value  on  a  recurring  basis.  As  the  Group’s  short-term
investments  and  put  right  liabilities  are  not  traded  in  an  active  market  with  readily  observable  prices,  the  Group  uses  significant
unobservable inputs to measure the fair value of short-term investments and put right liabilities. These instruments are categorized in the
Level 3 valuation hierarchy based on the significance of unobservable factors in the overall fair value measurement.

F-15

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.4 Fair value measurements (continued)

The following table summarizes the Group’s financial assets and liabilities measured and recorded at fair value on a recurring basis as of
December 31, 2021 and 2022:

Assets:
Short-term investments
Liabilities
Put right liabilities

Assets:
Short-term investments
Liabilities
Put right liabilities

As of December 31, 2021

Active market Observable input

(Level 1)
RMB

(Level 2)
RMB

Non-
 observable input
(Level 3)
RMB

     Total
RMB

—  

—  

—  

—  

753,164   753,164

96,911  

96,911

As of December 31, 2022

Active market  Observable input

(Level 1)
RMB

 (Level 2)
RMB

Non- 
observable input 
(Level 3)
RMB

     Total
RMB

—

—  

—

—  

235,429

235,429

88,687  

88,687

The roll forward of major Level 3 financial assets and financial liabilities are as follows:

Fair value of Level 3 financial assets and liabilities as of December 31, 2020
Purchase of short-term and other investments
Disposal of short-term and other investments
Fair value changes
Currency translation differences
Fair value of Level 3 financial assets and liabilities as of December 31, 2021
Purchase of short-term and other investments
Disposal of short-term and other investments
Recognition of put right liabilities
Fair value changes
Currency translation differences
Fair value of Level 3 financial assets and liabilities as of December 31, 2022

Short-term     
 investments

Put right
 liabilities

31,530

10,173,314  
(9,482,040) 
30,360  
—  
753,164  
7,407,332  
(7,911,518) 

—

(13,549) 
—  
235,429  

116,006
—
—
(16,628)
(2,467)
96,911
—
—
17,729
(34,260)
8,307
88,687

See Note 10 for additional information about Level 3 put right liabilities measured at fair value on a recurring basis for the year ended
December 31, 2021 and 2022.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.5 Foreign currency translation

The Group uses Chinese Renminbi (“RMB”) as its reporting currency. The United States Dollar (“US$”) is the functional currency of the
Group’s  entities  incorporated  in  the  Cayman  Islands,  the  United  States  of  America  (“U.S.”)  and  Hong  Kong,  and  the  RMB  is  the
functional currency of the Company’s PRC subsidiaries.

Transactions denominated in other than the functional currencies are translated into the functional currency of the entity at the exchange
rates prevailing on the transaction dates. Assets and liabilities denominated in other than the functional currencies are translated at the
balance  sheet  date  exchange  rate.  The  resulting  exchange  differences  are  recorded  in  the  consolidated  statements  of  comprehensive
income (loss).

The consolidated financial statements of the Group are translated from the functional currency to the reporting currency, RMB. Assets
and  liabilities  of  the  subsidiaries  are  translated  into  RMB  using  the  exchange  rate  in  effect  at  each  balance  sheet  date.  Income  and
expenses are translated at the average exchange rates prevailing for the year. Foreign currency translation adjustments arising from these
are reflected in the accumulated other comprehensive income (loss). The exchange rates used for translation on December 31, 2021 and
2022 were US$1.00 = RMB6.3757 and RMB6.9646 respectively, representing the index rates stipulated by the People’s Bank of China.

Translations  of  balances  in  the  consolidated  balance  sheets,  consolidated  statements  of  comprehensive  income  (loss),  consolidated
statements  of  changes  in  shareholders’  equity  (deficit)  and  consolidated  statements  of  cash  flows  from  RMB  into  US$  as  of  and  for
the year ended December 31, 2022 are solely for the convenience of the readers and were calculated at the rate of US$1.00=RMB6.8972,
representing the noon buying rate in The City of New York for cable transfers of RMB as certified for customs purposes by the Federal
Reserve  Bank  of  New  York  on  December  30,  2022.  No  representation  is  made  that  the  RMB  amounts  could  have  been,  or  could  be,
converted, realized or settled into US$ at that rate on December 31, 2022, or at any other rate. The US$ convenience translation is not
required  under  U.S.  GAAP  and  all  US$  convenience  translation  amounts  in  the  accompanying  consolidated  financial  statements  are
unaudited.

2.6 Cash and cash equivalents

Cash  and  cash  equivalents  consist  of  cash  on  hand  and  bank  deposits,  which  are  unrestricted  as  to  withdrawal  and  use.  The  Group
considers  all  highly  liquid  investments  with  an  original  maturity  date  of  three  months  or  less  at  the  date  of  purchase  to  be  cash
equivalents.

2.7 Restricted cash

Restricted cash consists of the guarantee deposits held in a designated bank account as security deposits under bank borrowing and bank
notes agreements. Such restricted cash will be released when the Group repays the related bank borrowings or bank notes. The Group has
presented restricted cash separately from cash and cash equivalents in the consolidated balance sheets.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.7 Restricted cash (continued)

Cash,  cash  equivalents  and  restricted  cash  as  reported  in  the  consolidated  statement  of  cash  flows  are  presented  separately  on  the
consolidated balance sheet as follows:

Cash and cash equivalents
Restricted cash
Total

2.8 Accounts receivable

As of December 31,

2021
RMB

2022
RMB

3,523,632  
—  
3,523,632  

3,214,005
96,764
3,310,769

Accounts receivable are stated at amortized cost less allowance for credit losses. The allowance for credit losses reflects the best estimate
of  future  losses  over  the  contractual  life  of  outstanding  accounts  receivable  and  is  determined  on  the  basis  of  historical  experience,
specific allowances for known troubled accounts, other currently available information including customer financial condition, and both
current and forecasted economic conditions.

2.9 Short-term investments

Short-term investments represent the investments issued by commercial banks or other financial institutions with a variable interest rate
indexed to the performance of underlying assets within one year. These investments are stated at fair value. Changes in the fair value are
reflected in the consolidated statements of comprehensive income (loss).

2.10 Inventories

Prior to the regulatory approval of product candidates, the Company may incur expenses for the manufacture of drug product to support
the  commercial  launch  of  those  products.  Until  the  date  at  which  regulatory  approval  has  been  received  or  is  otherwise  considered
probable, all such costs are recorded as research and development expenses as incurred.

Investigational products for external supply are capitalized as inventories with probable future economic benefit. Inventories are stated at
the  lower  of  cost  and  net  realizable  value,  with  cost  determined  in  a  manner  that  approximates  the  first-in,  first-out  method.  The
Company periodically analyzes its inventory levels, and writes down inventory that has become obsolete, inventory that has a cost basis
in  excess  of  its  estimated  realizable  value  and  inventory  in  excess  of  expected  sales  requirements  as  cost  of  product  sales.  The
determination  of  whether  inventory  costs  will  be  realizable  requires  estimates  by  management.  If  actual  market  conditions  are  less
favorable  than  projected  by  management,  additional  write-downs  of  inventory  may  be  required,  which  would  be  recorded  in  the
consolidated statements of comprehensive income (loss).

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.11 Property, equipment and software

Property,  equipment  and  software  are  stated  at  cost  less  accumulated  depreciation  and  amortization.  Depreciation  and  amortization  is
computed using the straight-line method over the following estimated useful lives, taking into account of any estimated residual value:

Laboratory equipment
Software
Office furniture and equipment
Delivery equipment
Leasehold improvements

     3 to 10 years
1 to 5 years
5 years
4 years
Lesser of useful life or lease term

The  Group  recognizes  the  gain  or  loss  on  the  disposal  of  property,  equipment  and  software  in  the  consolidated  statements  of
comprehensive income (loss).

2.12 Intangible assets

Intangible  assets  acquired  in  a  business  combination  that  are  used  in  research  and  development  activities,  or  in-process  research  and
development (IPR&D) intangible assets, are considered indefinite lived until the completion or abandonment of the associated research
and  development  efforts.  During  the  period  that  those  assets  are  considered  indefinite  lived,  they  are  not  amortized  but  are  tested  for
impairment annually and more frequently if events or changes in circumstances indicate that it is more likely than not that the asset is
impaired.  If  after  assessing  the  totality  of  events  and  circumstances  and  their  potential  effect  on  significant  inputs  to  the  fair  value
determination the Group determines that it is not more likely than not that the indefinite-lived intangible is impaired, then the entity shall
calculate the fair value of the intangible asset and perform the quantitative impairment test by comparing the fair value of the asset with
its carrying amount. If the carrying amount exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. For
IPR&D assets, the impairment loss is recognized in research and development expenses in the consolidated statements of comprehensive
income (loss).

Intangible  assets  with  finite  useful  lives  are  amortized  over  their  useful  lives.  The  useful  life  of  an  intangible  asset  is  the  period  over
which the asset is expected to contribute directly or indirectly to the future cash flows of the Group. The Group uses the straight-line
amortization  method  when  the  economic  benefits  of  the  intangible  assets  are  consumed  or  otherwise  used  up  cannot  be  reliably
determined.  In  particular,  the  Group  amortizes  the  contract  related  intangible  assets  with  finite  useful  lives  over  10  to  20  years  on  a
straight-line basis in accordance with the economic life of the out-licensed patent. Intangible assets subject to amortization are reviewed
for  impairment  whenever  events  or  changes  in  circumstances  indicate  that  the  carrying  amount  of  an  intangible  asset  may  not  be
recoverable. If circumstances require an intangible asset be tested for possible impairment, the Group first compares undiscounted cash
flows expected to be generated by that asset to its carrying amount. If the carrying amount is not recoverable on an undiscounted cash
flow basis, an impairment is recognized to the extent that the carrying amount exceeds its fair value. For intangible assets with finite
useful life, the impairment loss is recognized in cost of revenues in the consolidated statements of comprehensive income (loss).

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.13 Impairment of long-lived assets

Long-lived  assets,  such  as  property,  plant,  and  software,  and  intangible  assets  subject  to  amortization,  are  reviewed  for  impairment
whenever  events  or  changes  in  circumstances  indicate  that  the  carrying  amount  of  an  asset  may  not  be  recoverable.  If  circumstances
require  a  long-lived  asset  or  asset  group  be  tested  for  possible  impairment,  the  Company  first  compares  undiscounted  cash  flows
expected to be generated by that asset or asset group to its carrying amount. If the carrying amount of the long-lived asset or asset group
is not recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent that the carrying amount exceeds its fair
value. Fair value is determined through various valuation techniques including discounted cash flow models, quoted market values and
third-party  independent  appraisals,  as  considered  necessary.  For  the  years  ended  December  31,  2020,  2021  and  2022,  there  was  no
impairment of the value of the Group’s long-lived assets.

2.14 Goodwill

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not
individually identified and separately recognized. The Group allocates the cost of an acquired entity to the assets acquired and liabilities
assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price for acquisitions over the fair
value of the net assets acquired, including other intangible assets, is recorded as goodwill. Goodwill is not amortized, but impairment of
goodwill  is  tested  on  at  least  an  annual  basis  or  whenever  events  or  changes  in  circumstances  indicate  that  the  carrying  value  of  the
reporting unit exceeds its fair value.

The Group first assesses qualitative factors to determine whether it is more likely than not that the fair value of the Group’s reporting unit
is less than its carrying amount, including goodwill. The qualitative assessment includes the Group’s evaluation of relevant events and
circumstances affecting the Group’s single reporting unit, including macroeconomic, industry, market conditions and the Group’s overall
financial performance. If qualitative factors indicate that it is more likely than not that the Group’s reporting unit’s fair value is less than
its  carrying  amount,  then  the  Group  will  perform  the  quantitative  impairment  test  by  comparing  the  reporting  unit’s  carrying  amount,
including  goodwill,  to  its  fair  value.  If  the  carrying  amount  of  the  reporting  unit  exceeds  its  fair  value,  an  impairment  loss  will  be
recognized in an amount equal to that excess. No impairment charge was recognized for the years ended December 31, 2020, 2021 and
2022.

2.15 Long-term investments

The Group’s long-term investments include equity investments in an affiliate in which it does not have a controlling financial interest,
but has the ability to exercise significant influence over the operating and financial policies of the investee. The investment is accounted
for using the equity method of accounting in accordance with ASC topic 323, Investments—Equity Method and Joint Ventures (“ASC
323”). Under the equity method, the Group initially records its investments at fair value. The Group subsequently adjusts the carrying
amount  of  the  investment  to  recognize  the  Group’s  proportionate  share  of  the  equity  investee’s  net  income  or  loss  after  the  date  of
investment. When the liquidation rights and priorities as defined by an equity investment agreement differ from what is reflected by the
underlying percentage ownership interests, applying the percentage ownership interest to U.S. GAAP net income in order to determine
earnings or losses does not accurately represent the income allocation and cash flow distributions that will ultimately be received by the
investors.  As  such,  for  this  type  of  investments,  the  Group  uses  the  Hypothetical  Liquidation  at  Book  Value  (“HLBV”)  method  for
allocating earnings or losses of the equity method investee. The HLBV method is considered as a balance sheet approach. Specifically, a
calculation is prepared at each balance sheet date to determine the amount that the Group would receive if an equity investment entity
were  to  liquidate  all  of  its  assets  (as  valued  in  accordance  with  U.S.  GAAP)  and  distribute  that  cash  to  the  investors  based  on  the
contractually defined liquidation priorities. The difference between the calculated liquidation distribution amounts at the beginning and
the end of the reporting period, after adjusting for capital contributions and distributions, is the Group’s share of the earnings or losses
from the equity investment for the period.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.15 Long-term investments (continued)

As  it  relates  to  the  share-based  compensation  awarded  by  an  equity  method  investee  to  its  own  employees,  the  Group  recognizes  its
proportionate share of the compensation expense over the vesting period, included in the equity in loss of affiliate in the consolidated
statements of comprehensive income (loss). As it relates to the share-based compensation awarded by the Group to the equity method
investee employees that are based on the Group’s stock, when the other investors do not provide proportionate value to the investee or
the Group does not receive any consideration, the Group expenses the entire cost associated with the award in the same period the costs
are recognized by the investee, to the extent that the Group’s claim on the investee’s book value has not been increased. The expenses
recognized by the Group is included in the equity in loss of affiliate in the consolidated statements of comprehensive income (loss).

The  Group  evaluates  the  equity  method  investment  for  impairment  under  ASC  323.  An  impairment  loss  on  the  equity  method
investments  is  recognized  in  losses  when  the  decline  in  value  is  determined  to  be  other-than-temporary.  No  impairment  charge  was
recognized for the years ended December 31, 2020, 2021 and 2022.

2.16 Revenue recognition

The Group adopted Accounting Standard Codification (“ASC”) 606, Revenue from Contracts with Customers (Topic 606) (“ASC 606”)
for all periods presented. Consistent with the criteria of Topic 606, the Group recognizes revenue to depict the transfer of promised goods
or services to customers in an amount that reflects the consideration to which the entity expects to receive in exchange for those goods or
services.

Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects
the consideration that the entity expects to receive in exchange for those goods or services. An the entity performs the following five
steps  to  account  for  the  arrangements  that  an  entity  determines  are  within  the  scope  of  ASC  606:  (i)  identify  the  contract(s)  with  a
customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price, including variable consideration,
if any; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity
satisfies a performance obligation.

Once a contract is determined to be within the scope of ASC 606 at contract inception, the Group audits the contract to determine which
performance obligations it must deliver and which of these performance obligations are distinct. The Group recognizes as revenue the
amount of the transaction price that is allocated to each performance obligation when that performance obligation is satisfied or as it is
satisfied.

Collaboration revenue

At contract inception, we analyze its collaboration arrangements to assess whether they are within the scope of ASC 808, Collaborative
Arrangements (“ASC 808”) to determine whether such arrangements involve joint operating activities performed by parties that are both
active participants in the activities and exposed to significant risks and rewards dependent on the commercial success of such activities.
For collaboration arrangements within the scope of ASC 808 that contain multiple elements, we first determine if the collaboration is
deemed to be within the scope of ASC 808. For any units of account that are reflective of a vendor-customer relationship those units of
account are accounted for within the scope of ASC 606. For any units of account that are not accounted for under ASC 606 and therefore
accounted for pursuant to ASC 808, an appropriate recognition method is determined and applied consistently.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.16 Revenue recognition (continued)

The Group’s collaborative arrangements may contain more than one unit of account, or performance obligation, such as grant of licenses
of  intellectual  property  rights,  promises  to  provide  research  and  development  services  and  other  deliverables.  The  collaborative
arrangements  do  not  include  a  right  of  return  for  any  deliverable.  When  multiple  units  of  account  or  performance  obligations  are
identified within the arrangements, the Group must develop assumptions that require judgment to determine the stand-alone selling price
for each performance obligation identified in the contract. In developing the stand-alone selling price for a performance obligation, the
Group  considers  competitor  pricing  for  a  similar  or  identical  product,  market  awareness  of  and  perception  of  the  product,  expected
product  life  and  current  market  trends.  In  general,  the  consideration  allocated  to  each  performance  obligation  is  recognized  when  the
respective obligation is satisfied either by delivering a good or providing a service, limited to the consideration that is not constrained.

Licenses  of  Intellectual  Property:Upfront  non-refundable  payments  for  licensing  the  Group’s  intellectual  property  are  evaluated  to
determine if the license is distinct from the other performance obligations identified in the arrangement. For the license that is determined
to be distinct, the Group recognizes revenues in the amount of non-refundable, up-front fees allocated to the license at a point in time,
upon which the license is transferred to the licensee and the licensee is able to use and benefit from the license.

Research and Development Services: The portion of the transaction price allocated to research and development services performance
obligations  is  deferred  and  recognized  as  revenue  over  time  as  delivery  or  performance  of  such  services  provided  to  the  Group’s
customers occurs.

Milestone  Payments:  At  the  inception  of  each  arrangement  that  includes  development,  commercialization,  and  regulatory  milestone
payments,  the  Group  evaluates  whether  the  milestones  are  considered  probable  of  being  reached  and  to  the  extent  that  a  significant
reversal of cumulative revenue would not occur in future periods, estimates the amount to be included in the transaction price using the
most likely amount method. The transaction price is then allocated to each performance obligation on a relative stand-alone selling price
basis, for which the Group recognizes revenue as or when the performance obligations under the contract are satisfied. At the end of each
subsequent reporting period, the Group re-evaluates the probability of achieving such development milestones and any related constraint,
and if necessary, adjust the estimate of the overall transaction price. Any resulting adjustment is recorded on a cumulative catch-up basis,
which would affect the Group’s reported revenues and earnings in the period of the adjustment.

Royalties: For arrangements that include sales-based royalties, including milestone payments based on the level of sales, and the license
is deemed to be the predominant item to which the sales-based royalties or milestone payments relate, the Group recognizes revenue at
the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated
has been satisfied (or partially satisfied).

Supply of investigational products

Revenue from supply of investigational products is recognized when there is a transfer of control from the Group to the customer. The
Group determines transfer of control based on when the product is delivered, and title passed to the customer. Sales are generally made
with a limited right of return under certain conditions. Revenues are recorded net of provisions for sales discounts and returns.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.16 Revenue recognition (continued)

Contract assets and liabilities

Contract assets primarily represent revenue earnings over time that are not yet billable based on the terms of the contracts. The Group
does not have impairment losses associated with contracts with customers for the years ended December 31, 2020, 2021 and 2022.

Contract liabilities consist of fees invoiced or paid by the Group’s customers for which the associated performance obligations have not
been satisfied and revenue has not been recognized based on the Group’s revenue recognition criteria described above.

Contract assets and contract liabilities are reported in a net position on an individual contract basis at the end of each reporting period.
Contract assets are classified as current in the consolidated balance sheet when the Group expects to complete the related performance
obligations and invoice the customers within one year of the balance sheet date, and as long-term when the Group expects to complete
the related performance obligations and invoice the customers more than one year out from the balance sheet date. Contract liabilities are
classified as current in the consolidated balance sheet when the revenue recognition associated with the related customer payments and
invoicing is expected to occur within one year of the balance sheet date and as long-term when the revenue recognition associated with
the related customer payments and invoicing is expected to occur in more than one year from the balance sheet date.

Cost-to-cost measure of progress for over time performance obligations

Under the Group’s certain licensing and collaboration arrangement entered into with a business partner, the Group recognized revenue
using  the  cost-to-cost  measure  of  progress  for  its  over  time  performance  obligations  as  this  recognition  best  depicts  the  transfer  of
benefits to its business partner as costs are incurred under the licensing and collaboration arrangement. Under the cost-to-cost measure of
progress method, the extent of progress towards completion is measured based on the ratio of costs incurred to-date to the total estimated
costs for completion of the performance obligations. The Group applied significant judgment in estimating the total estimated costs for
completion of performance obligations under such licensing and collaboration arrangement.

2.17 Value-added-tax (“VAT”) recoverable and surcharges

Value  added  tax  recoverable  represent  amounts  paid  by  the  Group  for  purchases.  The  surcharges  (i.e.,  Urban  construction  and
maintenance  tax,  educational  surtax,  local  educational  surtax),  vary  from  6%  to  12%  of  the  value-added-tax  depending  on  the  tax-
payer’s  location.  The  deductible  input  VAT  balance  is  included  in  the  prepayments  and  other  receivables  in  the  consolidated  balance
sheets, and VAT payable balance is recorded in the accruals and other payables in the consolidated balance sheets.

2.18 Research and development expenses

Elements  of  research  and  development  expenses  primarily  include  (1)  payroll  and  other  related  expenses  of  personnel  engaged  in
research  and  development  activities,  (2)  in-licensed  patent  rights  fee  of  exclusive  development  rights  of  drugs  granted  to  the  Group,
(3) expenses related to preclinical testing of the Group’s technologies under development and clinical trials such as payments to contract
research organizations (“CRO”), investigators and clinical trial sites that conduct the clinical studies, (4) expenses to develop the product
candidates, including raw materials and supplies, product testing, depreciation, and facility related expenses, and (5) other research and
development expenses. Research and development expenses are charged to expenses as incurred when these expenditures are used for
the Group’s research and development activities and have no alternative future uses.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.18 Research and development expenses (continued)

The  Group  applied  significant  judgment  in  estimating  the  progress  of  its  research  and  development  activities  and  completion  of  or
likelihood of achieving milestone events per underlying agreements when estimating the research and development costs to be accrued at
each  reporting  period  end.  The  process  of  estimating  its  research  and  development  expenses  involves  reviewing  open  contracts  and
purchase orders, communicating with personnel to identify services that have been performed on its behalf and estimating the level of
service performed and the associated costs incurred for the services when the Group has not yet been invoiced or otherwise notified of
the actual costs.

The Group has acquired rights to develop and commercialize product candidates. Upfront payments that relate to the acquisition of a new
drug  compound,  as  well  as  pre-commercial  milestone  payments,  are  immediately  expensed  as  acquired  in-process  research  and
development in the period in which they are incurred, provided that the new drug compound does not also include processes or activities
that would constitute a “business” as defined under U.S. GAAP, the drug has not achieved regulatory approval for marketing and, absent
obtaining  such  approval,  has  no  established  alternative  future  use.  Milestone  payments  made  to  third  parties  subsequent  to  regulatory
approval  are  capitalized  as  intangible  assets  and  amortized  over  the  estimated  remaining  useful  life  of  the  related  product.  All
development  expenditures  are  recognized  in  profit  or  loss  when  incurred,  as  long  as  the  conditions  enabling  capitalization  of
development expenses as an asset have not yet been met.

2.19 Leases

In  accordance  with  ASC  842  adopted  on  January  1,  2019,  the  Group  determines  if  an  arrangement  is  a  lease  at  inception.  Operating
leases are included in operating lease right-of-use (“ROU”) assets, operating lease liability, and operating lease liability, non-current in
the Group’s consolidated balance sheets. The Group does not have any finance leases since the adoption date.

ROU assets represent the Group’s right to use an underlying asset for the lease term and lease liabilities represent the Group’s obligation
to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based
on the present value of lease payments over the lease term. When determining the lease term, the Group includes options to extend or
terminate the lease when it is reasonably certain that it will exercise that option, if any. As the Group’s leases do not provide an implicit
rate,  the  Group  uses  its  incremental  borrowing  rate,  which  it  calculates  based  on  the  credit  quality  of  the  Group  and  by  comparing
interest rates available in the market for similar borrowings, and adjusting this amount based on the impact of collateral over the term of
each lease.

The Group has elected to adopt the following lease policies in conjunction with the adoption of ASU 2016-02: (i)elect for each lease not
to separate non-lease components from lease components and instead to account for each separate lease component and the non-lease
components associated with that lease component as a single lease component; (ii) for leases that have lease terms of 12 months or less
and  does  not  include  a  purchase  option  that  is  reasonably  certain  to  exercise,  the  Group  elected  not  to  apply  ASC  842  recognition
requirements;  and  (iii)  the  Group  elected  to  apply  the  package  of  practical  expedients  for  existing  arrangements  entered  into  prior  to
January 1, 2019 to not reassess (a) whether an arrangement is or contains a lease, (b) the lease classification applied to existing leases,
and (c) initial direct costs.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.20 Government subsidies

Government subsidies primarily consist of financial subsidies received from provincial and local governments for operating a business in
their  jurisdictions  and  compliance  with  specific  policies  promoted  by  the  governments.  The  Group’s  PRC  based  subsidiaries  received
government  subsidies  from  certain  local  governments.  The  Group’s  government  subsidies  consist  of  specific  subsidies  and  other
subsidies. Specific subsidies are subsidies that the local government has set certain conditions for the subsidies. Other subsidies are the
subsidies that the local government has not set any conditions and are not tied to future trends or performance of the Group, receipt of
such subsidy income is not contingent upon any further actions or performance of the Group and the amounts do not have to be refunded
under any circumstances. For the years ended December 31, 2020, 2021 and 2022, no specific subsidies were received by the Group.
Other subsidies of RMB11,633, RMB9,216 and RMB25,470 for the years ended December 31, 2020, 2021 and 2022 respectively, are
recognized as other income upon receipt as further performance by the Group is not required.

2.21 Comprehensive income (loss)

Comprehensive income (loss) is defined as the changes in equity of the Group during a period from transactions and other events and
circumstances excluding transactions resulting from investments by owners and distributions to owners. Among other disclosures, ASC
220, Comprehensive Income, requires that all items that are required to be recognized under current accounting standards as components
of  comprehensive  income  (loss)  be  reported  in  a  financial  statement  that  is  displayed  with  the  same  prominence  as  other  financial
statements. For each of the periods presented, the Group’s comprehensive income (loss) includes net income (loss) and foreign currency
translation adjustments, which are presented in the consolidated statements of comprehensive income (loss).

2.22 Share-based compensation

The  Group  grants  restricted  shares  and  stock  options  to  eligible  employees  and  accounts  for  share-based  compensation  in  accordance
with ASC 718, Compensation—Stock Compensation.

Employees’  share-based  compensation  awards,  if  equity-classified,  are  measured  at  the  grant  date  fair  value  of  the  awards  and  are
recognized as expenses over the requisite period of the award, which is generally the vesting term of share-based payment awards.

A change in any of the terms or conditions of share-based awards is accounted for as a modification of the awards. The Group calculates
incremental  compensation  expense  of  a  modification  as  the  excess  of  the  fair  value  of  the  modified  awards  over  the  fair  value  of  the
original awards immediately before its terms are modified at the modification date. For vested awards, the Group recognizes incremental
compensation cost in the period when the modification occurs. For awards not being fully vested, the Group recognizes the sum of the
incremental  compensation  expense  and  the  remaining  unrecognized  compensation  expense  for  the  original  awards  over  the  remaining
requisite service period after modification.

Share-based compensation in relation to the restricted shares is measured based on the fair market value of the Group’s ordinary shares at
the  grant  date  of  the  award.  Prior  to  the  listing,  estimation  of  the  fair  value  of  the  Group’s  ordinary  shares  involves  significant
assumptions that might not be observable in the market, and a number of complex and subjective variables, including discount rate, and
subjective  judgments  regarding  the  Group’s  projected  financial  and  operating  results,  its  unique  business  risks,  the  liquidity  of  its
ordinary shares and its operating history and prospects at the time the grants are made. Share-based compensation in relation to the share
options is estimated using the Binominal Option Pricing Model. The determination of the fair value of share options is affected by the
share price of the Group’s ordinary shares as well as the assumptions regarding a number of complex and subjective variables, including
the expected share price volatility, risk-free interest rate, exercise multiple and expected dividend yield. In addition, the forfeiture rate is
estimated  based  on  an  analysis  of  the  Group’s  actual  forfeitures  and  the  appropriateness  of  the  forfeiture  rate  will  continue  to  be
evaluated based on the actual forfeiture experience, analysis of employee turnover and other factors. The fair value of these awards was
determined with the assistance from an independent third-party valuation firm.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.23 Income taxes

The Group accounts for income taxes under the asset and liability method. Under the asset and liability method, deferred tax assets and
liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of
existing  assets  and  liabilities  and  their  respective  tax  bases  and  operating  loss  and  tax  credit  carryforwards.  Deferred  tax  assets  and
liabilities  are  measured  using  the  enacted  tax  rates  that  expected  to  apply  to  taxable  income  in  the  years  in  which  those  temporary
differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized
in income in the period that includes the enactment date. A valuation allowance is recorded if it is more likely than not that some portion
or all of the deferred income tax assets will not be utilized in the foreseeable future.

The  Group  evaluates  its  uncertain  tax  positions  using  the  provisions  of  ASC  740-10,  Income  Taxes,  which  prescribes  a  recognition
threshold  that  a  tax  position  is  required  to  meet  before  being  recognized  in  the  financial  statements.  The  Group  recognizes  in  the
financial statements the benefit of a tax position which is ‘‘more likely than not’’ to be sustained under examination based solely on the
technical  merits  of  the  position  assuming  a  review  by  tax  authorities  having  all  relevant  information.  Tax  positions  that  meet  the
recognition threshold are measured using a cumulative probability approach, at the largest amount of tax benefit that has a greater than
fifty  percent  likelihood  of  being  realized  upon  settlement.  It  is  the  Group’s  policy  to  recognize  interest  and  penalties  related  to
unrecognized tax benefits, if any, as a component of income tax expense.

2.24 Borrowings

Borrowings are recognized initially at fair value, net of transaction costs incurred. Borrowings are subsequently stated at amortized cost.
Any  difference  between  the  proceeds  (net  of  transaction  costs)  and  the  redemption  value  is  recognized  as  interest  expense  in  the
consolidated statements of comprehensive income (loss) over the period of the borrowings, using the effective interest method.

2.25 Business combination

The  Group  accounts  for  its  business  combinations  using  the  acquisition  method  of  accounting  in  accordance  with  ASC  topic
805, Business Combinations (“ASC 805”). The acquisition method of accounting requires all of the following steps: (i) identifying the
acquirer, (ii) determining the acquisition date, (iii) recognizing and measuring the identifiable assets acquired, the liabilities assumed, and
any  noncontrolling  interest  in  the  acquiree,  and  (iv)  recognizing  and  measuring  goodwill  or  a  gain  from  a  bargain  purchase.  The
consideration transferred in a business combination is measured as the aggregate of the fair values at the date of exchange of the assets
given, liabilities incurred, and equity instruments issued as well as the contingent considerations and all contractual contingencies as of
the acquisition date.

The  Group  allocates  the  fair  value  of  purchase  consideration  to  the  tangible  assets  acquired,  liabilities  assumed  and  intangible  assets
acquired  based  on  their  estimated  fair  values.  The  excess  of  the  fair  value  of  purchase  consideration  over  the  fair  values  of  these
identifiable  assets  and  liabilities  is  recorded  as  goodwill.  Such  valuations  require  management  to  make  significant  estimates  and
assumptions, especially with respect to intangible assets. Significant estimates in valuing certain intangible assets may include, but are
not  limited  to,  future  expected  cash  flows  from  acquired  assets,  timing  and  probability  of  success  of  clinical  events  and  regulatory
approvals,  and  assumptions  on  useful  lives  of  the  patents  and  discount  rates.  Management’s  estimates  of  fair  value  are  based  upon
assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ
from estimates. Additional information, such as that related to income tax and other contingencies, existing as of the acquisition date but
unknown to us may become known during the remainder of the measurement period, not to exceed one year from the acquisition date,
which may result in changes to the amounts and allocations recorded.

Acquisitions  that  do  not  meet  the  accounting  definition  of  a  business  combination  are  accounted  for  as  asset  acquisitions.  For
transactions determined to be asset acquisitions, the Group allocates the total cost of the acquisition, including transaction costs, to the
net assets acquired based on their relative fair values.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.26 Segment information

In accordance with ASC 280, Segment Reporting, the Group’s chief operating decision maker, the Chief Executive Officer, reviews the
consolidated results when making decisions about allocating resources and assessing performance of the Group as a whole and hence, the
Group  has  only  one  reportable  segment.  The  Group  does  not  distinguish  between  markets  or  segments  for  the  purpose  of  internal
reporting.  As  the  Group’s  long-lived  assets  are  substantially  located  in  and  derived  from  the  PRC,  no  geographical  segments  are
presented.

2.27 Income (loss) per share

Basic income (loss) per share is computed by dividing net income (loss) attributable to ordinary shareholders by the weighted average
number  of  ordinary  shares  outstanding  during  the  period.  Diluted  income  (loss)  per  share  is  calculated  by  dividing  net  income  (loss)
attributable  to  ordinary  shareholders  by  the  weighted  average  number  of  ordinary  and  dilutive  ordinary  equivalent  shares  outstanding
during  the  period.  Ordinary  equivalent  shares  consist  of  shares  issuable  upon  the  conversion  of  the  preferred  shares  using  the  if-
converted  method,  shares  issuable  upon  the  issuance  of  ordinary  shares  to  be  issued  to  Everest  using  the  if-converted  method,  shares
issuable  upon  the  conversion  of  the  convertible  promissory  notes  using  the  if-converted  method,  shares  issuable  upon  the  exercise  of
share  options  using  the  treasury  stock  method,  shares  issuable  upon  the  issuance  of  ordinary  shares  for  restricted  shares  units  using
the treasury stock method, and shares issuable upon the exercise of warrants using the treasury stock method. Ordinary equivalent shares
are  not  included  in  the  denominator  of  the  diluted  income  (loss)  per  share  calculation  when  inclusion  of  such  shares  would  be  anti-
dilutive.

2.28 Adopted accounting pronouncements

In  March  2020,  the  FASB  issued  ASU  2020-04,  “Reference  Rate  Reform  (Topic  848):  Facilitation  of  the  Effects  of  Reference  Rate
Reform on Financial Reporting”, which provides optional expedients and exceptions for applying U.S. GAAP on contract modifications
and hedge accounting to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected
to  be  discontinued  because  of  reference  rate  reform,  if  certain  criteria  are  met.  These  optional  expedients  and  exceptions  provided  in
ASU 2020-04 are effective for the Company as of March 12, 2020 through December 31, 2022. The Company adopted this from January
1, 2022, which did not have a material impact on the Group’s consolidated financial statements.

In May 2021, the FASB issued ASU 2021-04, Earnings Per Share (Topic 260), Debt — Modifications and Extinguishments (Subtopic
470-50),  Compensation  —  Stock  Compensation  (Topic  718),  and  Derivatives  and  Hedging  —  Contracts  in  Entity’s  Own  Equity
(Subtopic  815-40)  to  clarify  and  reduce  diversity  in  an  issuer’s  accounting  for  modifications  or  exchanges  of  freestanding  equity-
classified written call options (for example, warrants) that remain equity classified after modification or exchange. The amendments in
this update are effective for all entities for fiscal years beginning after December 15, 2021, including interim periods within those fiscal
years. An entity should apply the amendments prospectively to modifications or exchanges occurring on or after the effective date of the
amendments.  The  Company  adopted  this  from  January  1,  2022,  which  did  not  have  a  material  impact  on  the  Group’s  consolidated
financial statements.

In  July  2021,  the  FASB  issued  ASU  2021-05,  Lessors—Certain  Leases  with  Variable  Lease  (“ASU  2021-05”).  It  requires  lessors  to
classify leases as operating leases if they have variable lease payments that do not depend on an index or rate and would have selling
losses if they were classified as sales-type or direct financing leases. The Company adopted this from January 1, 2022, which did not
have a material impact on the Group’s consolidated financial statements.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

2. PRINCIPAL ACCOUNTING POLICIES (CONTINUED)

2.28 Adopted accounting pronouncements (Continued)

In  June  2022,  the  FASB  issued  ASU  2022-03,  “Fair  Value  Measurement  (Topic  820):  Fair  Value  Measurement  of  Equity  Securities
Subject to Contractual Sale Restrictions”, which clarifies that a contractual restriction on the sale of an equity security is not considered
part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments also clarify
that  an  entity  cannot,  as  a  separate  unit  of  account,  recognize  and  measure  a  contractual  sale  restriction.  This  guidance  also  requires
certain disclosures for equity securities subject to contractual sale restrictions. The new guidance is required to be applied prospectively
with any adjustments from the adoption of the amendments recognized in earnings and disclosed on the date of adoption. This guidance
is effective for the Company for the year ending March 31, 2025 and interim reporting periods during the year ending March 31, 2025.
Early adoption is permitted. The Company does not expect that the adoption of this guidance will have a material impact on the financial
position, results of operations and cash flows.

2.29 Recent accounting pronouncements

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805) — Accounting for Contract Assets and Contract
Liabilities  from  Contracts  with  Customers  (“ASU  2021-08”).  It  requires  issuers  to  apply  ASC  606  Revenue  from  Contracts  with
Customers  to  recognize  and  measure  contract  assets  and  contract  liabilities  from  contracts  with  customers  acquired  in  a  business
combination. ASU 2021-08 is effective for the Company from January 1, 2023, with early adoption permitted. The ASU is currently not
expected to have a material impact on the Group’s consolidated financial statements.

3. ACCOUNTS RECEIVABLE AND CONTRACT ASSETS

Accounts receivable and contract assets, net of allowance for credit losses, consisted of the following:

Accounts receivable, gross
Allowance for credit losses
Accounts receivable, net

Contract assets, gross (Note 17)
Allowance for credit losses
Contract assets, net

No allowance for credit losses was recorded as of December 31, 2021 and 2022.

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2021
RMB

33,081  
—  
33,081  

2021
RMB
253,780  
—  
253,780  

As of December 31, 

RMB

2022
     US$ (Note 2.5)
—
—
—

—  
—  
—  

As of December 31, 

RMB

2022
     US$ (Note 2.5)
—
—
—

—  
—  
—  

    
    
    
 
 
 
    
    
    
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

4. Inventories

Inventories consist of the following:

Investigational products

As of December 31, 

2021
RMB

27,237  

RMB

2022
     US$ (Note 2.5)
—

—  

In April 2021, the Group entered into a master clinical supply agreement with AbbVie. Inc for the supply of investigational products for
use in the clinical trials. For the year ended December 31, 2021, the Group recognized revenue of RMB47,911 for the products delivered
to AbbVie. Inc. The inventories balance as of December 31, 2021 represented the investigational products that have been produced by
the contract manufacturer and transferred control to the Group. For the year ended December 31, 2022, the Group recognized revenue of
RMB28,102 for the products delivered to AbbVie. Inc.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

5. PREPAYMENTS AND OTHER RECEIVABLES

Prepayments:
– Prepayments to CRO vendors
– Prepayments for other services
– Prepayments to an affiliate (Note 22)
Value-added tax recoverable
Deposits
Other receivables

6. PROPERTY, EQUIPMENT AND SOFTWARE

Property, equipment and software consist of the following:

Cost
Laboratory equipment
Leasehold improvement
Software
Office furniture and equipment
Delivery equipment
Total property, equipment and software

As of December 31, 

2021
RMB

RMB

2022
     US$ (Note 2.5)

79,568  
906  
8,079  
89,578  
616  
12,077  
190,824  

32,960  
1,321  
8,231  
8,197  
4,570  
24,999  
80,278  

4,779
192
1,193
1,188
663
3,624
11,639

     As of December 31,      
2021
RMB

As of December 31, 
2022
     US$ (Note 2.5)

RMB

36,295  
18,945  
11,071  
2,468  
—

68,779  

52,989  
37,375  
14,506  
11,171  
165

116,206  

7,683
5,419
2,103
1,620
24
16,849

Less: accumulated depreciation and amortization

(44,162) 

(61,583) 

(8,929)

Net book value
Construction in progress
Total net book value of property, equipment and software

24,617  
21,099  
45,716  

54,623  
6,218  
60,841  

7,920
901
8,821

The  total  amounts  charged  to  the  consolidated  statements  of  comprehensive  income/(loss)  for  depreciation  and  amortization  expenses
amounted  to  approximately  RMB12.7  million  and  RMB13.8  million  and  RMB25.3  million  (US$3.7  million),  for  the  years  ended
December 31, 2020, 2021 and 2022, respectively.

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7. LEASES

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

As of December 31, 2022, the Company has operating leases recorded on its balance sheet for certain office spaces and facilities that
expire on various dates through 2028. The Group does not plan to cancel the existing lease agreements for its existing facilities prior to
their respective expiration dates. When determining the lease term, the Group includes options to extend or terminate the lease when it is
reasonably certain that it will exercise that option, if any. All the Group’s leases qualify as operating leases.

Information related to operating leases as of December 31, 2021 and 2022 is as follows (in thousands, except for percentages and years).

Assets

Operating lease right-of-use assets

Liabilities

Operating lease liabilities, current
Operating lease liabilities, non-current
Weighted average remaining lease term (years)
Weighted average discount rate

As of December 31, 

2021
RMB

RMB

2022
     US$ (Note 2.5)

112,781  

63,125  

9,152

30,669  
81,786  
3.6  

23,961  
32,069  
2.9  

3,474
4,650
2.9

5 %  

5 %  

5 %  

Information related to operating lease activities during the years ended December 31, 2020, 2021 and 2022 are as follows:

Operating lease rental expense

Amortization of right-of-use assets
Expense for short-term leases within 12 months
Interest of lease liabilities

Maturities of lease liabilities were as follows:

2023
2024
2025
2026
2027
Thereafter
Total undiscounted lease payments
Less: imputed interest
Total lease liabilities

F-31

For the Year Ended

2020
RMB

2021
RMB

RMB

2022
     US$ (Note 2.5)

8,158  
—  
679  
8,837  

16,997  
16  
2,585  
19,598  

34,520  
12  
3,178  
37,710  

5,005
2
461
5,468

RMB

As of December 31, 
2022
     US$ (Note 2.5)
5,490
3,874
753
767
686
175
11,745
(3,621)
8,124

37,867  
26,723  
5,193  
5,288  
4,729  
1,209  
81,009  
(24,979) 
56,030  

    
    
    
 
   
   
  
 
 
   
 
  
 
 
 
 
    
    
    
    
 
   
   
   
  
 
 
 
 
    
    
 
 
 
 
 
 
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

8. INTANGIBLE ASSETS

Intangible assets as of December 31, 2021 and 2022 are summarized as follows:

Intangible assets

TJ103
IPR&D TJ101

Total intangible assets

Intangible assets

TJ103
IPR&D TJ101

Total intangible assets

As of December 31, 2021

Accumulated

     Gross carrying amount      amortization     Net carrying amount

RMB

RMB

RMB

11,670  
110,330  
122,000  

(2,334) 
—  
(2,334) 

9,336
110,330
119,666

As of December 31, 2022

Accumulated

     Gross carrying amount      amortization     Net carrying amount

RMB

RMB

RMB

11,670  
110,330  
122,000  

(3,112) 
—  
(3,112) 

8,558
110,330
118,888

The two IPR&D assets (TJ103 and TJ101) were acquired from the business combination of I-Mab Tianjin and its subsidiaries including
Chengdu Tasgen Bio-Tech Co., Ltd. and Shanghai Tianyunjian Bio-Tech Co., Ltd. (together the “Tasgen Group”) in 2017. The licensor
of  two  IPR&D  assets  was  Genexine,  Inc.  The  gross  carrying  amounts  represent  the  fair  value  assigned  to  the  respective  research  and
development assets. At the date of acquisition, all three assets had not reached technological feasibility.

IPR&D  related  to  TJ103  was  subsequently  determined  to  have  a  finite  useful  life  as  a  result  of  an  out-licensing  arrangement.
Consequently, the Group uses the straight-line method to amortize the asset. The amortization for the years ended December 31, 2020,
2021  and  2022  was  RMB1,556,  RMB778  and  RMB778,  respectively.  The  estimated  amortization  expense  for  each  of  the  five
succeeding fiscal years is RMB778.

As of December 31, 2021 and 2022, there was no impairment of the value of the Group’s intangible assets.

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9. GOODWILL

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

On July 15, 2017, the Group acquired 66.67% of the equity interests in the Tasgen Group by issuing convertible preferred shares, and
controlled  the  board  of  directors  and  business  of  I-Mab  Tianjin  since  then.  Tasgen  Group  is  principally  engaged  in  the  research  and
development  of  innovative  medicines  and  the  Group  acquired  Tasgen  Group  for  its  research  team,  technical  experience,  and  IPR&D
pipeline assets (see Note 8). As of December 31, 2021 and 2022, the goodwill of RMB162,574 represented the goodwill generated from
the  aforementioned  acquisition  of  Tasgen  Group  and  the  business  of  Tasgen  Group  was  fully  integrated  into  the  Company  after  the
acquisition.

As  of  December  31,  2021,  the  Group  performed  a  qualitative  assessment  by  evaluating  relevant  events  and  circumstances  that  would
affect the Group’s single reporting unit and did not note any indicator that it is more likely than not that the fair value of the Group’s
reporting unit is less than its carrying amount and therefore the Group’s goodwill was not impaired.

As  of  December  31,  2022,  the  Group  performed  the  quantitative  impairment  test  by  comparing  the  Group’s  single  reporting  unit’s
carrying amount, including goodwill, to its fair value. The Group’s single reporting unit fair value was determined using discounted cash
flows based on ten-year financial projections with future revenues assumption for direct product sales of each pipeline plus a terminal
value related to cash flows beyond the projection period extrapolated at an estimated terminal growth rate. A pre-tax discount rate was
applied,  which  reflected  an  assessment  of  time  value  and  specific  risks  relating  to  the  industries  that  the  Group  operates  in.  The
probabilities  of  the  success  of  the  clinical  trials  based  on  the  status  of  these  trials  and  reference  to  the  industry  benchmark  was  also
incorporated into the assumption of future revenues.

Management  leveraged  their  experiences  in  the  industries  and  provided  forecast  based  on  past  performance  and  their  anticipation  of
future  business  and  market  developments.  Management  has  not  identified  reasonably  possible  change  in  key  assumptions  that  could
cause carrying amounts of the Group’s single reporting unit to exceed the fair value as material headroom resulted from the impairment
reviews over their respective carrying amounts. No impairment was recognized for the year ended December 31, 2022.

10. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD AND PUT RIGHT LIABILITIES

(a) Investments accounted for using the equity method

Investment in I-Mab Hangzhou

I-Mab  Hangzhou,  incorporated  on  June  16,  2019,  was  a  wholly  owned  subsidiary  of  I-Mab  Hong  Kong  with  registered  capital  of
US$30 million, which was paid up by I-Mab Hong Kong on September 14, 2020.

On September 15, 2020 (the “Series A Closing Date”), I-Mab Hong Kong entered into an equity transfer and investment agreement (the
“Series A SPA”) with (i) a limited partnership jointly established by the management of I-Mab Hangzhou to hold restricted equity of I-
Mab  Hangzhou  issued  to  the  management  (“Management  Holdco”),  (ii)  a  limited  partnership  established  to  hold  the  shares  of  I-Mab
Hangzhou  for  future  equity  incentive  plan  (“ESOP  Holdco”)  and  (iii)  a  group  of  domestic  investors  in  China  (“Series  A  Domestic
Investors”).

In accordance with the terms of the Series A SPA,

(i)

I-Mab  Hong  Kong  agreed  to  assign  all  rights  and  obligations/ownership  of  certain  drug  candidates  in  different  stages  of
development (“Target Pipelines”) to I-Mab Hangzhou as of the Series A Closing Date as well as to transfer employment of a
team of designated management/workforce to I-Mab Hangzhou. The Target Pipelines were evaluated by an independent valuer,
with a total value of US$105 million as of the Series A Closing Date;

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

10. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD AND PUT RIGHT LIABILITIES (CONTINUED)

(a) Investments accounted for using the equity method (continued)

Investment in I-Mab Hangzhou (continued)

(ii)

(iii)

(iv)

Management Holdco would acquire 10% of the equity of I-Mab Hangzhou from I-Mab Hong Kong with no consideration. The
10%  equity  is  represented  by  I-Mab  Hangzhou’s  registered  capital  of  US$3  million,  and  that  after  acquiring  such  equity,
Management Holdco is committed to pay US$3 million in cash to I-Mab Hangzhou to fulfil its capital contribution obligations
in a period of four years starting from the Series A Closing Date;

ESOP  Holdco  would  acquire  5%  of  the  equity  of  I-Mab  Hangzhou  from  I-Mab  Hong  Kong  with  no  consideration.  The  5  %
equity is represented by I-Mab Hangzhou’s registered capital of US$1.5 million. All of such equity would be used for I-Mab
Hangzhou’s future equity incentive plan.

Series A Domestic Investors would acquire a total of 40% of the equity of I-Mab Hangzhou from I-Mab Hong Kong with no
consideration.  The  40%  equity  is  represented  by  I-Mab  Hangzhou’s  registered  capital  of  US$12  million,  and  after  acquiring
such  equity  of  I-Mab  Hangzhou,  Domestic  Investors  would  pay  US$120  million  collectively  in  cash  to  I-Mab  Hangzhou  to
fulfil its capital contribution obligations.

Upon closing of the Series A SPA, the registered capital of I-Mab Hangzhou remained to be US$30 million. As of December 31, 2020,
among  the  total  25,500,000  outstanding  shares  of  I-Mab  Hangzhou,  13,500,000  shares  were  held  by  I-Mab  Hong  Kong  while  the
remaining 12,000,000 shares was held by Series A Domestic Investors. Shares subscribed by Management Holdco and ESOP Holdco, in
the total number of 4,500,000, have not yet been purchased by or issued to Management Holdco and ESOP Holdco as of December 31,
2020.  Once  all  these  4,500,000  subscribed  shares  of  I-Mab  Hangzhou  are  purchased  by  or  issued  to  Management  Holdco  and  ESOP
Holdco, the equity interest in I-Mab Hangzhou held by I-Mab Hong Kong, Series A Domestic Investors, Management Holdco and ESOP
Holdco would be 45%, 40%, 10% and 5% respectively. For the years ended December 31, 2021 and 2022, 750,000 and 750,000 shares
were issued to Management Holdco, respectively.

On the same day, I-Mab Hong Kong also entered into a shareholders agreement with the aforementioned investors (the “Series A SHA”).
According to the SHA and I-Mab Hangzhou’s articles of association, the board of directors of I-Mab Hangzhou shall be composed of
seven directors. The directors shall be elected in the following ways: I-Mab Hong Kong is entitled to appoint three directors, including
the chairman of the board of directors, as well as nominate one independent director; the Management Holdco is entitled to appoint one
director;  two  non-related  entities  of  the  Series  A  Domestic  Investors  are  entitled  to  appoint  one  director  respectively  (“Investors
Directors”). Each director of the board of directors shall have one vote. I-Mab Hong Kong, Management Holdco and ESOP Holdco agree
to  act  in  concert,  as  long  as  each  of  Management  Holdco  and  ESOP  Holdco  respectively  holds  equity  in  I-Mab  Hangzhou,  when
exercising the rights as a shareholder.

As a result of the above transactions, I-Mab Hangzhou became an affiliate of the Group on the Series A Closing Date in accordance with
ASC 810 since I-Mab Hangzhou meets the definition of a business under ASC 805. Pipeline candidate related matters are considered to
be  the  activities  that  most  significantly  impact  the  economic  performance  of  I-Mab  Hangzhou  at  the  current  stage,  and  these  matters
cannot be acted without the consent from Series A Investors Directors. In accordance with ASC 810-10, I-Mab Hangzhou is a variable
interest entity, and no shareholder shall consolidate I-Mab Hangzhou under VIE model as neither party have the power to direct all the
activities  that  most  significantly  impact  the  economic  performance  of  I-Mab  Hangzhou.  Therefore,  the  Group  deconsolidated  I-Mab
Hangzhou  and  retained  significant  influence  in  I-Mab  Hangzhou.  The  investment  was  accounted  for  using  the  equity  method.  The
retained investment in the common stock of I-Mab Hangzhou was initially measured at fair value in accordance with ASC 810-10-40.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

10. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD AND PUT RIGHT LIABILITIES (CONTINUED)

(a) Investments accounted for using the equity method (continued)

Investment in I-Mab Hangzhou (continued)

The Group determined the fair value of its retained equity interest with the assistance of an independent third-party valuation firm. The
Group  used  equity  allocation  model  to  estimate  the  fair  value  of  the  investment.  The  fair  value  as  of  the  Series  A  Closing  Date  was
US$112,039 (equivalent to approximately RMB764,352), which reflected the fact that the shares subscribed by Management Holdco and
ESOP Holdco were not issued and outstanding as of the Series A Closing Date.

A  gain  of  RMB407,598  was  recognized  as  a  result  of  the  deconsolidation  in  September  2020.  The  gain  represented  the  difference
between:

i)

ii)

The fair value of the retained noncontrolling investment in I-Mab Hangzhou at the Series A Closing Date; and

The aggregate of all of the following:

a)

the carrying amount of transferred intellectual property related to TJ102 at the Series A Closing Date;

b)

the fair value of the put right liabilities written by I-Mab Hong Kong to Series A Domestic Investors;

c)

the carrying amount of I-Mab Hangzhou’s net assets at the Series A Closing Date.

Subsequently,  pursuant  to  the  I-Mab  Hangzhou’s  articles  of  association,  the  Group  applies  the  HLBV  method  to  allocate  earnings  or
losses  of  I-Mab  Hangzhou  because  the  liquidation  rights  and  priorities  sufficiently  differ  from  what  is  reflected  by  the  underlying
percentage ownership interests. The Group recognized RMB67,425, RMB309,208 and RMB360,436 in equity in loss of an affiliate in
the consolidated statements of comprehensive loss for the years ended December 31, 2020, 2021 and 2022, and in investment accounted
for using the equity method in the consolidated balance sheets as of December 31, 2020, 2021 and 2022, respectively.

The purchase price of US$3 million committed by Management Holdco under Series A SPA, representing 10% of the equity of I-Mab
Hangzhou,  is  significantly  lower  than  the  fair  value  of  the  corresponding  subscribed  shares  as  of  the  Closing  Date.  The  excess  is
considered  as  share-based  compensation  to  the  I-Mab  Hangzhou’s  management  for  the  services  to  be  used  or  consumed  in  the  I-Mab
Hangzhou’s own operations. The share-based compensation is considered granted upon the Closing Date and cliff vests after five years
of  service  since  the  Series  A  Closing  Date.  Consequently,  the  Group  recognizes  its  proportionate  share  of  the  compensation  expense
recorded by I-Mab Hangzhou. For the years ended December 31, 2020, 2021 and 2022, the Group recognized RMB8,456, RMB28,236
and RMB29,375 in equity in loss of affiliates in the consolidated financial statements of comprehensive loss, respectively.

Along  with  the  equity  transfer  transaction,  the  team  of  designated  management/workforce  transferred  from  the  Group  to  I-Mab
Hangzhou consists of several grantees under the Group’s 2020 Share Incentive Plan (“2020 Plan”, see Note 16(d)). And there were some
employees transferred from the Group to I-Mab Hangzhou in 2021 and 2022.These individuals continued to qualify the definition of the
eligible participants under the 2020 Plan and 2021 Share Incentive Plan (“2021 Plan”, see Note 16(e)) after their resignation date from
the  Group.  Meanwhile,  there  has  been  no  change  to  any  of  the  award  terms.  The  equity  transfer  transaction  did  not  trigger  the
modification  accounting  to  the  share-based  compensation.  Additionally,  given  that  I-Mab  Hangzhou  became  an  affiliate  to  the  Group
upon deconsolidation, and that the other shareholders of I-Mab Hangzhou are not providing proportionate value to sponsor the 2020 Plan
and  2021  Plan  nor  is  the  Group  receiving  any  consideration  for  the  awards  granted  to  employees  of  I-Mab  Hangzhou,  the  Group  is
required,  under  Topic  323,  to  expense  the  full  costs  of  share-based  compensation  as  incurred  at  the  same  period  as  the  costs  are
recognized by I-Mab Hangzhou. For the years ended December 31, 2020, 2021 and 2022, such expenses of RMB32,707, RMB13,267
and  RMB13,852  were  recorded  in  the  equity  in  loss  of  affiliates  in  the  consolidated  statements  of  comprehensive  income  (loss),
respectively.

F-35

Table of Contents

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

10. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD AND PUT RIGHT LIABILITIES (CONTINUED)

(a) Investments accounted for using the equity method (continued)

Investment in I-Mab Hangzhou (continued)

In 2021 and 2022, I-Mab Hangzhou granted stock options to its employees. Pursuant to the I-Mab Hangzhou’s articles of association, the
Group  applies  the  HLBV  method  to  allocate  earnings  or  losses  of  I-Mab  Hangzhou  because  the  liquidation  rights  and  priorities
sufficiently differ from what is reflected by the underlying percentage ownership interests. Accordingly, the Group recorded RMB17,031
and  RMB33,579  in  the  equity  in  loss  of  affiliates  in  the  consolidated  financial  statements  of  comprehensive  loss  for  the  years  ended
December 31, 2021 and 2022, and in additional paid-in capital in the consolidated balance sheets as of December 31, 2021 and 2022,
respectively.

In  July  2022,  I-Mab  Hangzhou  entered  into  an  equity  transfer  and  investment  agreement  (the  “Series  B  SPA”)  and  a  shareholders
agreement (the “Series B SHA”) with a group of domestic investors (“Series B Domestic Investors”) in China to raise approximately
US$46 million in RMB equivalent. As of the date of this report, this round of financing has not completed yet. Once all the shares of I-
Mab  Hangzhou  are  purchased  by  or  issued  to  its  investors,  including  Management  Holdco  and  ESOP  Holdco,  the  Group  would  hold
37.13%  equity  interest  in  I-Mab  Hangzhou.  Pursuant  to  the  Series  B  SHA,  Management  Holdco  and  ESOP  Holdco  no  longer  had
irrevocably consented to act in concert with I-Mab Hong Kong. I-Mab Hangzhou remains the affiliate of the Group. The Group increased
the carrying amount of the long-term investment based on the fair value of the put right liabilities written by I-Mab Hong Kong to Series
B Domestic Investors with the amount of RMB17,729 (Note 10 (b)).

As  of  December  31,  2021  and  2022,  the  carrying  value  of  the  Group’s  long-term  investment  in  I-Mab  Hangzhou  RMB346,247  and
RMB25,214, respectively.

Other long-term investment measured under equity method

In July 2021, the Group, as a limited partner, entered into a partnership agreement with other investors and subscribed RMB20,000 for a
4%  equity  interest  in  a  partnership  located  in  Hangzhou.  In  August  2021,  the  Group  paid  the  initial  investment  of  RMB6,000  to  the
partnership. Pursuant to the partnership agreement, the Group, as a limited partner, shall not participate in any activities in relation to
management  of  the  investment  business.  In  addition,  members  of  the  investment  committee  shall  only  be  appointed  by  the  general
partner. For the years ended December 31, 2021 and 2022, the Group recorded RMB141 and RMB223 in the equity in loss of affiliates in
the consolidated financial statements of comprehensive loss. As of December 31, 2021 and 2022, the carrying value of the Group’s long-
term investment in this affiliate was RMB5,859 and RMB5,636, respectively.

The Group presented the summarized financial information of the Group’s long-term investment measured under equity method below in
accordance with Rule 4-08 of Regulation S-X (RMB in thousands).

     For the period from     
September 15, 2020 to
December 31, 2020
I-Mab
Hangzhou

For the year ended
December 31, 2021

I-Mab

Other equity
     Hangzhou      investments

For the year ended
December 31, 2022

I-Mab

Other equity
Hangzhou      investments

Operating data:

Revenue
Loss from operations
Net Loss

271  
(85,945) 
(85,945) 

5,660  
(295,186) 
(290,586) 

—
(3,513)
(3,513)

103,826  
(356,734) 
(346,322)

—
(5,565)
(5,565)

F-36

    
    
    
 
   
   
  
   
  
 
 
 
Table of Contents

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

10. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD AND PUT RIGHT LIABILITIES (CONTINUED)

(a) Investments accounted for using the equity method (continued)

Other long-term investment measured under equity method (continued)

Balance sheet data:
Current assets
Non-current assets
Current liabilities
Non-current liabilities
Non-controlling interests

(b) Put right liabilities

As of December 31,

I-Mab

     Hangzhou

2021
     Other equity     
investments

I-Mab
Hangzhou

2022
     Other equity
investments

602,047
1,207,132
168,763
176,436
—

20,037
40,000
50
—
—

499,665  
1,432,328  
281,587  
232,083  
—  

81,683
135,347
107
—
—

Pursuant to the Series A SHA and Series B SHA, if I-Mab Hangzhou fails to close a public offering of I-Mab Hangzhou’s shares on the
China Stock Exchange’s Science and Technology Innovation Board, Main Board, Small and Medium-Sized Enterprise Board, Growth
Enterprise Board, or Hong Kong Stock Exchange, U.S. Stock Exchange, or other stock exchanges approved by the shareholders of I-Mab
Hangzhou in accordance with provisions of the Series A SHA and Series B SHA within 4 years after September 15, 2020, I-Mab Hong
Kong  is  obligated  to  repurchase  the  equity  held  by  Series  A  Domestic  Investors  in  cash  or  in  I-Mab’s  stock  (subject  to  the  approval
procedures of I-Mab) within 3 years from the expiration of the 4-year period after the Series A Closing Date of September 15, 2020.

The put right written by I-Mab Hong Kong to Domestic Investors is a freestanding equity-linked instrument, which is classified as a put
right  liability  and  is  initially  measured  at  fair  value.  Subsequent  changes  in  fair  value  are  recorded  in  other  income  (expenses)  in  the
consolidated statements of comprehensive income (loss).

The Group determined the fair value of the put right with the assistance of an independent third-party valuation firm. The Group used the
option pricing model (finnerty model) to estimate the fair value of the put right using the following assumptions:

Put right liabilities - Series A
Expected terms (Year)
Estimated volatility
Spot price
Probability of triggering event for redemption option

Put right liabilities - Series B
Expected terms (Year)
Estimated volatility
Spot price
Probability of triggering event for redemption option

F-37

As of
December 31,
2021

As of
December 31,
2022

2.7
34.5 %  

1.7
33.9 %  

US$

171,134

US$ 

148,276

70 %  

70 %  

As of
August 19,
2022

As of
December 31,
2022

 US$

2.1  
31.3 %  
36,570   US$
70 %  

1.7
31.1 %

36,516

70 %

    
    
 
  
 
   
  
 
 
 
 
 
    
    
    
    
 
 
 
 
 
 
Table of Contents

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

10. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD AND PUT RIGHT LIABILITIES (CONTINUED)

(b) Put right liabilities (continued)

The  model  requires  the  input  of  key  assumptions  including  the  expected  terms,  estimated  volatility,  spot  price  and  probability  of
triggering  event  for  redemption  option.  The  significant  unobservable  inputs  used  in  the  option  pricing  model  included  spot  price,
estimated  volatility  and  probability  of  triggering  event  for  redemption  option.  Expected  terms  is  estimated  based  on  the  timing  of  a
hypothetical redemption event which is assumed to be the earlier of expected redemption date or expected public offering date. Expected
volatility is estimated based on daily stock prices of the comparable companies for a period with length commensurate to the expected
terms of redemption event. The spot price was determined using the market approach with assistance from an independent third-party
valuation firm. The significant unobservable inputs used in the market approach include estimated volatility and probability of triggering
event for redemption option. The Group’s management is ultimately responsible for the determination of the spot price and probability of
triggering event for redemption option.

Significant decreases in interval between valuation date and maturity date, estimated volatility, spot price and probability of triggering
event for redemption option would result in a significantly lower fair value measurement.

11. SHORT-TERM BORROWINGS

In December 2022, I-Mab Shanghai borrowed a loan of RMB18,956 from Shanghai Pudong Development Bank Co., Ltd. for a term of
six  months  and  at  the  interest  rate  of  3.40%  per  annum.  To  facilitate  this  borrowing,  I-Mab  Hong  Kong  placed  cash  deposits  of
USD5,000 (equivalent to approximately RMB34,823) with the bank. The use of such cash deposits and the interest earned thereon are
restricted by the bank during the period of the borrowing.

F-38

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

12. ACCRUALS AND OTHER PAYABLES

Current:
Staff salaries and welfare payables
Accrued external research and development activities related expenses
Accrued cost in relation to planned dual listing
Payable due to an affiliate (Note 22)
Accrued Termination fee and other expenses in relation to the 

disputes with Tracon (Note 17)

Non-refundable incentive payment from depositary bank (1)
Accrued traveling expenses, office expenses and others

Non-current:
Non-refundable incentive payment from depositary bank (1)
Non-refundable  payment  received  in  relation  to  the  exclusive  promotion  right

granted to a third party (2)

As of December 31,      

2021
RMB

As of December 31, 
2022
     US$ (Note 2.5)

RMB

52,526  
367,976  
4,793  
—

57,381  
2,369  
108,290  
593,335  

43,483  
264,972  
—  

64,782

161,106  
6,428  
165,801  
706,572  

4,934  

6,963  

10,000  
14,934  

10,000  
16,963  

6,304
38,417
—
9,393

23,358
932
24,039
102,443

1,009

1,450
2,459

Total

608,269  

723,535  

104,902

(1) The  Group  received  a  non-refundable  incentive  payment  of  US$1,857  (equivalent  to  approximately  RMB12,982)  and  US$1,195
(equivalent to approximately RMB8,075) from depositary bank in April 2020 and December 2022, respectively. The amount was
recorded ratably as other gains over a five-year arrangement period. For the years ended December 31, 2020, 2021 and 2022, the
Group  has  recorded  RMB2,348,  RMB2,395  and  RMB2,821  as  other  income  in  the  consolidated  statements  of  comprehensive
income (loss), respectively.

(2)

In November 2021, the Group entered into a collaboration agreement with a third party located in China to grant the third party an
exclusive right to conduct promotion activities for the TJ202 drug products in designated hospitals after the commercialization of
TJ202 in future years. In November 2021, the Group received a non-refundable payment of RMB10,000 from the third party and
recorded it as the non-current liabilities in the consolidated balance sheet as of December 31, 2021. This amount will be recorded as
the deduction of the selling expenses after the commercialization of TJ202 products.

F-39

    
    
 
   
   
  
 
 
 
 
 
 
 
 
   
   
 
 
 
 
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13. INCOME TAXES

Cayman Islands

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

I-Mab is incorporated in the Cayman Islands. Under the current laws of the Cayman Islands, I-Mab is not subject to tax on income or
capital gain. Additionally, the Cayman Islands does not impose a withholding tax on payments of dividends to shareholders.

Hong Kong

  I-Mab  did  business  registration  in  Hong  Kong  and  has  a  Hong  Kong  tax  file  number.I-Mab  Biopharma  Hong  Kong  Limited  is
incorporated in Hong Kong. Companies registered in Hong Kong are subject to Hong Kong profits tax on the taxable income as reported
in their respective statutory financial statements adjusted in accordance with the relevant Hong Kong tax laws. The applicable tax rate in
Hong Kong is 16.5%. For the years ended December 31, 2020, 2021 and 2022, the income tax expenses recorded in the consolidated
statements of comprehensive income (loss) for I-Mab were nil, nil and RMB697, respectively. For the years ended December 31, 2020,
2021 and 2022, I-Mab Biopharma Hong Kong Limited did not make any provisions for Hong Kong profit tax as there were no assessable
profits  derived  from  or  earnings  in  Hong  Kong  for  any  of  the  periods  presented.  Under  the  Hong  Kong  tax  law,  I-Mab  and  I-
Mab Biopharma Hong Kong Limited is exempted from income tax on its foreign-derived income and there are no withholding taxes in
Hong Kong on remittance of dividends.

United States

I-Mab Biopharma US Ltd. is incorporated in U.S. and is subject to U.S. federal corporate income tax at a rate of 21%. I-Mab Biopharma
US  Ltd.  is  also  subject  to  state  income  tax  in  Maryland  of  8.25%.  I-Mab  Biopharma  US  Ltd.  has  no  taxable  income  for  all  periods
presented, therefore, no provision for income taxes is required.

China

On March 16, 2007, the National People’s Congress of PRC enacted a new Enterprise Income Tax Law (“new EIT law”), under which
Foreign Investment Enterprises (“FIEs”) and domestic companies would be subject to corporate income tax at a uniform rate of 25%.
The new EIT law became effective on January 1, 2008. Under the new EIT law, preferential tax treatments will continue to be granted to
entities  which  conduct  businesses  in  certain  encouraged  sectors  and  to  entities  otherwise  classified  as  “High  and  New  Technology
Enterprises”.

I-Mab Shanghai has been qualified as “High and New Technology Enterprise” and enjoys a preferential income tax rate of 15% from
2021 to 2023.

The Company’s other PRC subsidiaries are subject to the statutory income tax rate of 25%.

No  provision  for  corporate  income  taxes  for  corresponding  tax  residents  has  been  made  because  the  Group  are  in  cumulative  loss
positions for all the periods presented. During the year ended December 31, 2020, the Group accrued withholding taxes with the amount
of RMB12,231 in relation to research and development service and other supporting service charges made by its non-PRC tax resident
subsidiaries  to  its  PRC  tax  resident  subsidiaries.  As  the  actual  withholding  taxes  paid  to  local  tax  bureau  was  RMB9,077,  the  Group
reversed the tax expenses of RMB3,154 in the year ended December 31, 2021.

F-40

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

13. INCOME TAXES (CONTINUED)

China (continued)

Reconciliations  of  the  differences  between  the  PRC  statutory  income  tax  rate  and  the  Group’s  effective  income  tax  rate  for  the  years
ended December 31, 2020, 2021 and 2022 are as follows:

Income (loss) before income tax
Income tax computed at respective applicable tax rate
Non-deductible expenses
Research and development expenses plus deduction
True up of withholding tax expenses
Changes in valuation allowance

Year Ended December 31, 

2020
RMB

2021
RMB

  483,146  
66,044  
72,256  
(60,776) 
—  
(65,293) 
12,231  

(2,334,695) 
(410,899) 
68,400  
(50,530) 
(3,154) 
393,029  
(3,154) 

2022

RMB

US$

(2,506,620) 
(442,343) 
38,570  
(74,415) 
—  
478,885  
697  

     (Note 2.5)
(363,425)
(64,134)
5,592
(10,789)
—
69,432
101

Effect of tax holidays entitled by the PRC subsidiaries on basic income (loss) per
share

0.34  

(0.84) 

(0.65) 

(0.09)

The principal components of the deferred tax assets and liabilities are as follows:

Deferred tax assets:
Net operating loss carryforward
Depreciation and amortization of property, equipment, software and intangible asset, net
Share-based compensation expenses
Accrual expense
Less: valuation allowance
Total deferred tax assets

Deferred tax liabilities:
Acquired intangible assets
Total deferred tax liabilities

Deferred tax assets, net

F-41

2021
RMB

As of December 31, 
2022

RMB

380,695  
41,020  
59,296  
30,172  
(493,233) 
17,950  

792,602  
39,189  
127,950  
30,210  
(972,118) 
17,833  

US$
(Note 2.5)

114,916
5,682
18,551
4,380
(140,944)
2,585

17,950  
17,950  

17,833  
17,833  

—  

—  

2,585
2,585

—

    
    
    
    
 
 
 
 
 
 
 
    
    
    
    
 
   
   
  
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

13. INCOME TAXES (CONTINUED)

China (continued)

Movement of the valuation allowance is as follows:

Balance as of January 1
Additions
Utilization and reversal of valuation allowances
Decrease due to the change of tax rate
Balance as of December 31

Year Ended December 31

2020
RMB

2021
RMB

2022

RMB

(165,497) 
(36,061) 
89,154  
12,200  
(100,204) 

(100,204) 
(393,029) 
—  
—  
(493,233) 

(493,233) 
(478,885) 
—  
—  
(972,118) 

US$
(Note 2.5)
(71,512)
(69,432)
—
—
(140,944)

As  of  December  31,  2022,  the  Group  had  a  majority  of  net  operating  losses  of  approximately  RMB3,834,455  which  arose  from  the
subsidiaries established in the PRC. The tax losses carried forward various in the PRC will expire during the period beginning from 2023
to 2032 based on entity’s preferential tax status.

A valuation allowance is provided to reduce the amount of deferred tax assets if it is considered as more likely than not that some portion
or all of the deferred tax assets will not be realized in the foreseeable future. In making such determination, the Group evaluates a variety
of  positive  and  negative  factors  including  the  Group’s  operating  history,  accumulated  deficit,  the  existence  of  taxable  temporary
differences and reversal periods.

The Group has incurred net accumulated operating losses for income tax purposes since its inception. The Group believes that it is more
likely than not that these net accumulated operating losses together with other deferred tax assets will not be utilized in the foreseeable
future. Therefore, the Group has provided full valuation allowances for the deferred tax assets as of December 31, 2021 and 2022.

The Group evaluates each uncertain tax position (including the potential application of interest and penalties) based on the technical
merits, and measure the unrecognized benefits associated with the tax positions. As of December 31, 2021 and 2022, the Group did not
have any significant unrecognized uncertain tax positions.

14. ORDINARY SHARES

As of December 31, 2018 and 2019, 500,000,000 ordinary shares had been authorized by the Company. Each ordinary share is entitled to
one vote. The holders of ordinary shares are also entitled to receive dividends whenever funds are legally available and when declared by
the Board of Directors of the Company.

On October 29, 2019, the Company’s shareholders and board of directors approved that immediately prior to the completion of initial
public offering, the Company’s authorized share capital will be changed into US$80,000 divided into 800,000,000 ordinary shares of a
par value of US$0.0001 each.

On January 17, 2020, the Company completed its IPO and became listed on the Nasdaq Global Market by issuing 7,407,400 American
Depositary Shares (“ADSs”) at the price of US$14.00 per ADS for total gross proceeds of US$103.7 million. On February 10, 2020, the
underwriters of the IPO have exercised their over-allotment option to purchase an additional 768,350 ADSs of the Company at the IPO
price of US$14.00 per ADS. After giving effect to the exercise of the over-allotment option, the Company has issued and sold a total of
8,175,750 ADSs in the IPO, for total net proceeds of US$101.3 million (equivalent to RMB697,788), netting of issuance cost from total
gross proceeds of US$114.5 million. Each ten ADSs represent twenty-three ordinary shares of the Company.

F-42

    
    
    
    
    
 
 
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

14. ORDINARY SHARES (CONTINUED)

On January 17, 2020, the Company also issued 6,078,571 ordinary shares to Everest.

Upon the completion of the IPO, the Company’s then outstanding 30,227,056 Series A Preferred Shares, 23,288,783 Series B Preferred
Shares,  3,714,580  Series  B-1  Preferred  Shares,  3,301,849  Series  B-2  Preferred  Shares,  31,046,360  Series  C  Preferred  Shares  and
3,857,143  Series  C-1  Preferred  Shares  were  converted  into  30,227,056,  23,288,783,  3,714,580,  3,571,427,  34,420,469  and  4,537,814
ordinary shares, respectively.

On  July  15,  2020,  the  Company’s  Board  of  Directors  approved  a  share  repurchase  program  to  repurchase  in  the  open  market  up  to
US$20  million  worth  of  outstanding  ADSs  of  the  Group.  The  Company  made  a  total  prepayment  of  US$5,000  (equivalent  to
RMB34,051) for the share repurchase. The prepayment was collected subsequently in October 2020. No repurchase activity was taken
place for the year ended December 31, 2021.

On  September  3,  2020,  the  Company  entered  into  definitive  subscription  agreements  with  a  consortium  of  institutional  investors  (the
“Investors”)  to  raise  approximately  US$418  million  through  a  private  placement.  The  consortium  is  led  by  Hillhouse  Capital  Group
(“Hillhouse”),  with  significant  participation  by  GIC  Private  Limited,  and  also  includes  certain  other  leading  Asian  and  U.S.  biotech
investment funds, Hillhouse is entitled to nominate one representative to I-Mab’s Board of Directors.

The private placement comprises (1) the sale to the Investors of the Group’s 29,133,502 ordinary shares (equivalent to 12,666,740 ADSs)
at  a  purchase  price  equivalent  to  US$33  per  ADS  amounting  to  approximately  US$418  million;  and  (2)  warrants  (the  “Investor
Warrants”,  see  Note  15(b))  to  subscribe  for  an  aggregate  of  5,341,267  ordinary  shares  (equivalent  to  2,322,290  ADSs)  at  an  exercise
price  equivalent  to  US$45  per  ADS,  which  may  further  increase  the  proceeds  of  approximately  US$104.5  million  if  the  Investor
Warrants are fully exercised. The Investor Warrants will remain exercisable at the election of the Investors within 12 months after the
closing of the private placement. All of the warrants were exercised by the Investors during the year ended December 31, 2021.

The subscription agreement with the Hillhouse entities contemplates two closings. The first closing occurred on September 11, 2020, and
the second closing is conditioned upon an existing director of the Company having resigned to enable the Hillhouse entities to appoint a
director to replace such director and the lemzoparlimab out-licensing agreement with AbbVie Ireland Unlimited Group (“AbbVie”) (see
Note 17) being or remaining effective. Upon the first closing, 20,421,378 ordinary shares and 3,744,032 Investor Warrants were issued to
the  Investors  for  total  gross  proceeds  of  approximately  US$293.0  million.  On  December  17,  2020,  the  Group  entered  into  a  written
amendment  made  to  the  subscription  agreement  with  the  Hillhouse  entities,  which  removed  one  of  the  two  conditions  for  the  second
closing that an existing director of the Company having resigned to enable the Hillhouse entities to appoint a director to replace such
director. The second closing occurred as the other condition was satisfied and 8,712,124 ordinary shares as well as 1,597,235 Investor
Warrants were issued to the Hillhouse entities for total gross proceeds of approximately US$125.0 million. The total net proceeds, netting
of issuance cost, from the private placement was US$397.2 million (equivalent to RMB2,653,669).

On August 23, 2022, the Company announced, that it plans to implement share repurchases pursuant to the share repurchase program
previously authorized by its board of directors. Under the share purchase plans, the Company and the senior management may purchase
up  to  US$40  million  of  ADSs  in  aggregate.  As  of  December  31,  2022,  the  Company  had  purchased  1,652,541  ordinary  shares  in  an
aggregate  amount  of  approximately  US$3  million  (equivalent  to  RMB21,249)  under  the  authorized  share  purchase  program.  These
repurchased shares are considered not outstanding and therefore were accounted for under the cost method and includes such treasury
stock  as  a  component  of  the  shareholder’s  equity.  For  the  year  ended  December  31,  2022,  no  treasury  stock  was  used  for  exercise  of
option. As of December 31, 2022, 1,652,541 shares were not in use and not outstanding.

As of December 31, 2022, 16,915,104 stock options were exercised, and 7,235,959 restricted share units were issued as ordinary

shares.

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Table of Contents

15. WARRANTS

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

As mentioned in Note 14, on September 3, 2020, the Group entered into definitive subscription agreements with the Investors to raise
approximately  US$418  million  through  a  private  placement,  which  comprises  the  Investor  Warrants  to  subscribe  for  an  aggregate  of
5,341,267 ordinary shares (equivalent to 2,322,290 ADSs) at an exercise price equivalent to US$45 per ADS.

The Subscription Agreement with the Hillhouse entities contemplates two closings. In the first closing occurred on September 11, 2020
and second closing occurred on December 17, 2020, the Investor Warrants were issued with fixed exercise prices of US$45.00 per ADS
(equivalent to US$19.57 per share). The Investor Warrants will remain exercisable at the election of the Investors within 12 months after
the  closing  of  the  private  placement.  The  number  of  common  share  purchasable  upon  exercise  of  the  Investor  Warrants  shall  be
proportionally  adjusted  to  reflect  any  share  dividend,  share  split,  combination  of  shares  or  reverse  share  split,  or  other  similar  event
affecting  the  number  of  outstanding  common  shares.  All  of  the  warrants  were  exercised  by  the  Investors  during  the  year  ended
December 31, 2021.

Accounting for warrants to purchase ordinary shares

The Investor Warrants are regarded as indexed to the Company’s own stock and were classified as equity and initially measured at fair
value and subsequent changes in fair value are not recognized as long as the Investor Warrants continue to be classified as equity. The
estimated fair value of the Investor Warrants was shown below, which were used to determine the allocation of the total proceeds for the
sale of ordinary shares between the Investor Warrants and ordinary shares.

Warrants to purchase ordinary shares (first closing on September 11, 2020)
Warrants to purchase ordinary shares (second closing on December 17, 2020)

     Exercise     
Price per
share
US$
19.57   3,744,032  
19.57   1,597,235  

Outstanding
Units

     Fair value at
the closing
date

     RMB’000
71,874
37,869

Terms
  12 months  
  12 months  

The Group determined the fair value of the warrants with the assistance of an independent third-party valuation firm. The Group used the
binomial model to estimate the fair value of the warrant on September 11, 2020 and December 17, 2020 when the Investor Warrants were
issued using the following assumptions:

Risk-free rate of return
Maturity date
Estimated volatility rate
Exercise price

As of September 11,
2020

As of December 17,
2020

0.12 %  

0.08 %

September 11, 2021

December 17, 2021

US$

60.72 %   
19.57

US$

59.56 %
19.57

The model requires the input of assumptions including the risk-free rate of return, maturity date and estimated volatility rate. The
risk-free rate for periods within the contractual life is based on the US treasury strip bond with maturity similar to the maturity of the
warrants  as  of  valuation  dates  plus  a  China  country  risk  premium.  For  expected  volatilities,  the  Group  has  made  reference  to  the
historical daily stock prices volatilities of ordinary shares of several comparable companies in the same industry as the Group.

F-44

    
    
    
    
    
    
 
    
    
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION

(a) 2017 Employee Stock Option Plan (“2017 Plan”)

In October 2017, the Company adopted the 2017 Plan. Under the 2017 Plan, a maximum aggregate number of 13,376,865 shares that
may  be  issued  pursuant  to  all  awards  granted  was  approved.  Stock  options  granted  to  an  employee  under  the  2017  Plan  will  be
exercisable  upon  the  Company  completes  a  listing  and  the  employee  renders  service  to  the  Company  in  accordance  with  a  stipulated
service  schedule  starting  from  the  employee’s  date  of  employment.  Employees  are  generally  subject  to  a  three-year  service  schedule,
under which an employee earns an entitlement to vest in 50% of the option grants on the second anniversary of the grant date, a vesting
of the remaining 50% on the third anniversary of the applicable grant date. The stock option under 2017 Plan, to the extent then vested,
shall become exercisable only upon the earlier of (i) a listing, and (ii) occurrence of a change in control.

On December 25, 2019, the Second Amended and Restated 2017 Plan was approved by the shareholders and board of directors of the
Company,  pursuant  to  which,  in  connection  with  the  Company’s  IPO,  the  maximum  aggregate  number  of  shares  that  may  be  granted
pursuant to all awards under 2017 Plan shall be adjusted in accordance with a formula pre-approved by the shareholders. In connection
with above amendments to 2017 Plan, each of the Company’s founders, namely Zheru Zhang, Lili Qian, Zhengyi Wang and Lei Fang, is
willing to irrevocably surrender by him or her, for no consideration, a portion of the unvested options granted to him or her, which, if
vested, would entitle him or her to acquire up to 130,000 ordinary shares of the Company, par value US$0.0001 per share, at an exercise
price  of  US$1.0,  respectively,  under  the  Second  Amended  and  Restated  2017  Plan  (in  respect  of  each  individual,  the  “Founder’s
Surrendered Options”). On December 25, 2019, the board of directors of the Company approved that the Company accepts all Founder’s
Surrendered Options from each of the founders, Zheru Zhang, Lili Qian, Zhengyi Wang and Lei Fang, for no consideration, with effect
immediately  prior  to  the  completion  of  the  IPO  and  such  surrendered  options  be  cancelled  with  effect  immediately  prior  to  the
completion of the IPO.

Prior to the Company completes a listing, all stock options granted to an employee shall be forfeited at the time the employee terminates
his employment with the Group. After the Company completes a listing, vested options not exercised by an employee shall be exercised
until later of: (i) 90 days after the date when the options become exercisable, or (ii) 30 days after the date of cessation of employment or
directorship, or such longer period as the Board of Directors may otherwise determine.

The  Group  did  not  grant  any  stock  options  to  employees  for  the  years  ended  December  31,  2020,  2021  and  2022.  2,569,017  and
1,782,617 stock options were exercisable as of December 31, 2021 and 2022, respectively.

F-45

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(a) 2017 Employee Stock Option Plan (“2017 Plan”) (continued)

The following table sets forth the stock options activities of 2017 Plan for the periods presented:

     Weighted      Weighted     

Outstanding as of December 31 , 2019

Forfeited
Exercised
Surrendered (Note 16(h))

Outstanding as of December 31 , 2020

Exercised
Forfeited

Outstanding as of December 31 , 2021

Exercised

Outstanding as of December 31 , 2022
Exercisable as of December 31, 2022

average
exercise
price
     US$

average
remaining
contractual

term     
7.76  
—  
—
—

Aggregate
intrinsic
value
US$
47,671
—
—
—
6.75   150,415
—
—
50,361
—
1,457
1,457

—  
—  
5.79  
—  
4.75  
4.75  

0.93  
1.00  
0.72
1.00
0.97  
0.96  
1.00  
1.00  
1.00  
1.00  
1.00  

Number of 
shares
9,812,881  
(338,876) 
(1,439,373)
(332,566)
7,702,066  
(5,122,549) 
(10,500) 
2,569,017  
(786,400) 
1,782,617  
1,782,617  

All the stock options were vested as of December 31, 2021.

Since the exercisability was dependent upon the listing, and it was not probable that this performance condition could be achieved until a
listing, no share-based compensation expense relating to the 2017 Plan was recorded prior to the Company’s IPO in 2020.

On January 17, 2020, the Group completed its IPO. After achieving this performance condition, the options continue to vest based only
on  service  period  completed  according  to  the  graded  vesting  schedule.  The  Group  has  begun  recognizing  share-based  compensation
expense  for  the  options  granted  using  the  graded  vesting  method  with  a  cumulative  catch-up  for  the  service  period  completed  to  date
during the year ended December 31, 2020 and recognized RMB52,802, RMB69,214 and RMB4,277 share-based compensation expenses
in administrative expenses, research and development expenses and equity in loss of an affiliate, respectively relating to options vested
cumulatively. According to the amendments to 2017 Plan, the maximum aggregate number of shares which may be granted pursuant to
all awards under 2017 Plan was changed to 9,609,084. Each of the Group’s founders, namely Zheru Zhang, Lili Qian, Zhengyi Wang and
Lei Fang surrendered 83,142 unvested stock options that were granted to him or her under 2017 Plan before, totalling 332,566 unvested
options, for no consideration, and these stock options were cancelled immediately.

Share-based compensation expenses related to the stock options of 2017 Plan are included in:

Research and development expenses
Administrative expenses
Equity in loss of affiliates

Year Ended December 31, 

2020
RMB
69,214  
52,802  
4,277  
126,293  

2021
RMB

(225) 
2,835  
516  
3,126  

RMB

2022
     US$ (Note 2.5)
—
—
—
—

—  
—  
—  
—  

F-46

    
    
    
 
 
 
 
 
 
 
 
 
    
    
    
 
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(b) 2018 Employee Stock Option Plan (“2018 Plan”)

On February 22, 2019, the Group adopted the 2018 Plan, which was subsequently amended on July 22, 2019.Under the amended and
restated 2018 Plan, the maximum aggregate number of ordinary shares which may be issued pursuant to all awards is 14,005,745, and if
the Group successfully lists on an internationally recognized securities exchange for a Qualified Public Offering by December 31, 2019,
the maximum aggregate number of ordinary shares which may be issued shall be 15,452,620.

On December 25, 2019, the Second Amended and Restated 2018 Plan were approved by the shareholders and board of directors of the
Company,  pursuant  to  which,  in  connection  with  the  Company’s  IPO,  the  maximum  aggregate  number  of  shares  that  may  be  granted
pursuant to all awards under 2018 Plan shall be adjusted in accordance with a formula pre-approved by the shareholders. In connection
with above amendments to 2018 Plan, the director of the Company, Dr. Jingwu Zhang Zang is willing to irrevocably surrender by him,
for no consideration, of the right to acquire a certain amount of ordinary shares of the Company, par value US$0.0001 per share, at an
exercise price of US$1.0 pursuant to the options granted to him under the Second Amended and Restated 2018 Plan (the “Dr. Zang’s
Surrendered  Options”).  On  December  25,  2019,  the  board  of  directors  of  the  Company  approved  that  the  Company  accepts  the
irrevocable surrender of Dr. Zang’s Surrendered Options for no consideration, with effect immediately prior to the completion of the IPO
and such surrendered options be cancelled with effect immediately prior to the completion of the IPO.

Stock options granted to an employee under the 2018 Plan will be generally exercisable when the Company completes a listing and the
employee  renders  service  to  the  Company  in  accordance  with  a  stipulated  service  schedule  starting  from  the  employee’s  date  of
employment.  The  vesting  schedule  shall  generally  be  a  two-year  vesting  schedule  consisting  of  a  cliff  vesting  50%  on  the  first
anniversary  of  the  applicable  vesting  commencement  date,  and  a  vesting  of  the  remaining  50%  on  the  second  anniversary  of  the
applicable  vesting  commencement  date.  If  a  listing  occurs  at  anytime  prior  to  any  option  granted  under  the  2018  Plan  becoming  full
vested, and to the extent such option has been granted and outstanding, any such option shall vest in full with immediate effect upon the
listing. Except as otherwise approved by the board of directors, vested portion of option shall become exercisable upon the earlier of six
months  after  a  listing  or  the  occurrence  of  a  change  in  control;  provided,  however  that  in  each  case,  no  option  of  an  employee  shall
become exercisable until the third anniversary of such employee’s employment commencement date.

The following table sets forth the stock options activities of 2018 Plan for the periods presented:

Outstanding as of December 31, 2019

Exercised
Surrendered (Note 16 (h))

Outstanding as of December 31, 2020

Exercised

Outstanding as of December 31, 2021

Exercised

Outstanding as of December 31, 2022
Exercisable as of December 31, 2022

Weighted
average
exercise
price
US$

Weighted
average
remaining
contractual
term

1.00  
1.00
1.00
1.00  
1.00  
1.00  
1.00  
1.00  
1.00  

8.86  
—
—
8.15  
—  
7.15  
—  
6.15  
6.15  

Aggregate
intrinsic
value
US$
64,840
—
—
206,499
—
148,076
—
1,233
1,233

Number of
shares
13,536,588  
(402,000)
(2,544,917)
10,589,671  
(3,036,435) 
7,553,236  
(6,044,843) 
1,508,393  
1,508,393  

All the stock options were vested as of December 31, 2021.

Except for the aforementioned grant of stock options to a director of the Group under 2018 Plan, since the exercisability is dependent
upon  the  listing,  and  it  is  not  probable  that  this  performance  condition  can  be  achieved  until  a  listing,  no  share-based  compensation
expense related to the 2018 Plan was recorded for the year ended December 31, 2019.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(b) 2018 Employee Stock Option Plan (“2018 Plan”) (continued)

On January 17, 2020, the Group completed its IPO. After achieving this performance condition, the options continue to vest based only
on  service  period  completed  according  to  the  graded  vesting  schedule.  The  Group  has  begun  recognizing  share-based  compensation
expense  for  the  options  granted  using  the  graded  vesting  method  with  a  cumulative  catch-up  for  the  service  period  completed  to  date
during the year ended December 31, 2020 and recognized RMB48,055, RMB65,656 and RMB226 share-based compensation expense in
administrative  expenses  and  research,  development  expenses  and  equity  in  loss  of  an  affiliate,  respectively  relating  to  options  vested
cumulatively. According to the amendments to 2018 Plan, the maximum aggregate number of shares which may be granted pursuant to
all awards under 2018 Plan was changed to 11,005,888. The director of the Company, Dr. Jingwu Zhang Zang surrendered 2,544,917
unvested options that were granted to him under 2018 Plan, for no consideration, and these stock options were cancelled immediately.

Share-based compensation expenses related to the stock options of 2018 Plan are included in:

Research and development expenses
Administrative expenses
Equity in loss of affiliates

(c) 2019 Share Incentive Plan (“2019 Plan”)

Year Ended December 31, 

2020
RMB
65,656  
48,055  
226  
113,937  

2021
RMB

55  
4,478  
257  
4,790  

RMB

2022
     US$ (Note 2.5)
—
—
—
—

—  
—  
—  
—  

On October 29, 2019, the Group adopted 2019 Share Incentive Plan (the “2019 Plan”), which will become effective immediately prior to
the  completion  of  the  Company’s  initial  public  offering.  Under  the  2019  Plan,  the  maximum  aggregate  number  of  ordinary  shares
available for issuance shall initially be 100,000.

The options shall vest when the Group completes a listing and the employee renders service to the Group in accordance with a stipulated
service schedule starting from the employee’s date of employment. Stock options granted to 3 independent directors under the 2019 Plan
will  be  generally  exercisable  under  the  following  terms:(a)  a  cliff  vesting  of  1/3  of  the  option  on  the  first  anniversary  of  the  vesting
commencement date (January 17, 2020); (b) a cliff vesting of 1/3 of the option on the second anniversary of the vesting commencement
date (January 17, 2020); (c) a vesting of the remaining 1/3 of the option on the third anniversary of the vesting commencement date. In
the last year of the grantee’s service, the options shall vest on a prorated basis to reflect the portion of the year during which the grantee
provided services to the Group.

For the year ended December 31, 2020, the Group granted 72,000 stock options to 3 independent directors (all with an exercise price of
US$6.09). 24,000 and 48,000 options were exercisable as of December 31, 2021 and 2022, respectively.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(c) 2019 Share Incentive Plan (“2019 Plan”) (continued)

The following table sets forth the stock options activities of 2019 Plan for periods presented:

Outstanding as of December 31, 2019

Granted

Outstanding as of December 31, 2020

Granted

Outstanding as of December 31, 2021

Granted

Outstanding as of December 31, 2022
Exercisable as of December 31, 2022

Weighted
average
exercise
price
US$

Weighted
average
remaining
contractual
term

Aggregate
intrinsic
value
US$

—  
6.09  
6.09  
—  

6.09
—
6.09  
6.09  

—  
—  
9.33  
—  

8.05
—
7.05  
7.05  

—
—
1,038
—
1,045
—
—
—

Number of
shares

—  
72,000  
72,000  
—  

72,000
—

72,000  
48,000  

A summary of non-vested stock options activity for the year ended December 31, 2022 is presented below:

Non-vested at December 31, 2021

Vested

Non-vested at December 31, 2022

Number of shares

48,000  
(24,000) 
24,000  

     Weighted average

grant-
date fair value
US$

4.50
4.50
4.50

Stock options granted to the 3 independent directors were measured at fair value on the dates of grant using the Binomial Option Pricing
Model with the following assumptions:

Expected volatility
Risk-free interest rate (per annum)
Exercise multiple
Expected dividend yield
Time to maturity (in years)

Year Ended December 31,
2020

54.88 %
0.79 %
2.80
—
10

The expected volatility was estimated based on the historical volatility of comparable peer public companies with a time horizon close to
the expected term of the Group’s options. The risk-free interest rate was estimated based on the yield to maturity of U.S. treasury bonds
denominated  in  US$  for  a  term  consistent  with  the  expected  term  of  the  Group’s  options  in  effect  at  the  option  valuation  date.  The
expected exercise multiple was estimated as the average ratio of the stock price to the exercise price when employees would decide to
voluntarily  exercise  their  vested  options.  As  the  Group  did  not  have  sufficient  information  of  past  employee  exercise  history,  it  was
estimated by referencing to a widely-accepted academic research publication. Expected dividend yield is zero as the Group has never
declared or paid any cash dividends on its shares, and the Group does not anticipate any dividend payments in the foreseeable future.
Time to maturity equals to the contract life of the option.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(c) 2019 Share Incentive Plan (“2019 Plan”) (Continued)

Share-based compensation expenses related to the stock options of 2019 Plan are included in:

Year Ended December 31, 

2020
RMB

2021
RMB

RMB

Research and development expenses
Administrative expenses
Equity in loss of affiliates

(d) 2020 Plan

—  
1,171  
—  
1,171  

—  
707  
—  
707  

2022
     US$ (Note 2.5)
—
42
—
42

—  
288  
—  
288  

On July 15, 2020, the Group adopted 2020 Plan. Under the 2020 Plan, the maximum aggregate number of shares authorized to be issued
is 10,760,513 ordinary shares, provided that the maximum number of shares to be issued in the form of restricted share units shall not
exceed 7,686,081 ordinary shares.

Stock options granted to employees under the 2020 Plan are graded vesting in four years with 25% vesting each year.

For  the  years  ended  December  31,  2020,  2021  and  2022,  the  Group  granted  1,068,733,  133,913  and  2,026,300  stock  options  to  its
employees, respectively. 192,340 options and 353,949 options were exercisable as of December 31, 2021 and 2022, respectively.

The following table sets forth the stock options activities of 2020 Plan for the periods presented:

Outstanding as of December 31, 2019

Granted
Forfeited

Outstanding as of December 31, 2020

Granted
Exercised
Expired
Forfeited

Outstanding as of December 31, 2021

Granted
Exercised
Expired
Forfeited

Outstanding as of December 31, 2022
Exercisable as of December 31, 2022

Weighted
average
exercise
price
US$

Weighted
average
remaining
contractual
term

Aggregate
intrinsic
value
US$

—  
5.91  
5.91  
5.91  
18.85  
5.91  
5.91  
6.23  
7.61
9.20
5.91
6.74
7.65
8.81  
7.00  

—  
—  
—  
9.62  
—  
—  
—  
—  

8.68
—
—
—
—
8.76  
7.67  

—
—
—
15,237
—
—
—
—
12,967
—
—
—
—
—
—

Number of
shares

—  
1,068,733  
(24,365) 
1,044,368  
133,913  
(68,859) 
(154) 
(111,495) 
997,773
2,026,300
(14,645)
(69,051)
(170,490)
2,769,887  
353,949  

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(d) 2020 Plan (Continued)

A summary of non-vested stock option activities for the year ended December 31, 2022 is presented below:

Non-vested at December 31, 2021

Granted
Vested
Forfeited

Non-vested at December 31, 2022

     Weighted average

grant-
date fair value
US$

9.44
1.35
9.40
7.39
0.53

Number of shares

805,433
2,026,300  
(245,305) 
(170,490) 
2,415,938  

Stock options granted to the employees were measured at fair value on the dates of grant using the Binomial Option Pricing Model with
the following assumptions:

2020

Year Ended December 31,
2021

2022

Expected volatility
Risk-free interest rate (per annum)
Exercise multiple
Expected dividend yield
Time to maturity (in years)

0.86 %

56.51 % 50.78%-51.84%
1.32%-1.88%
2.20-2.80
—
10

2.20-2.80
—
10

53.66 %
1.88 %

2.20-2.80
—
10

The expected volatility was estimated based on the historical volatility of comparable peer public companies with a time horizon close to
the expected term of the Group’s options. The risk-free interest rate was estimated based on the yield to maturity of U.S. treasury bonds
denominated  in  US$  for  a  term  consistent  with  the  expected  term  of  the  Group’s  options  in  effect  at  the  option  valuation  date.  The
expected exercise multiple was estimated as the average ratio of the stock price to the exercise price when employees would decide to
voluntarily  exercise  their  vested  options.  As  the  Group  did  not  have  sufficient  information  of  past  employee  exercise  history,  it  was
estimated by referencing to a widely-accepted academic research publication. Expected dividend yield is zero as the Group has never
declared or paid any cash dividends on its shares, and the Group does not anticipate any dividend payments in the foreseeable future.
Time to maturity equals to the contract life of the option.

Share-based compensation expenses related to the stock options of 2020 Plan are included in:

Research and development expenses
Administrative expenses
Equity in loss of affiliates

Year Ended December 31, 

2020
RMB
10,435  
4,357  
1,619  
16,411  

2021
RMB
14,915  
8,702  
3,262  
26,879  

RMB
17,068  
25,897  
2,846  
45,811  

2021
     US$ (Note 2.5)
2,475
3,755
413
6,643

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(d) 2020 Plan (Continued)

Restricted share units granted to employees under the 2020 Plan will be exercisable under the following items:

(1) 1/3 of the awarded restricted share units shall vest based on the following time attribution:(i) a vesting of 25% of the time attribution
based  restricted  share  units  on  the  first  anniversary  of  the  applicable  adoption  date;(ii)  a  vesting  of  25%  of  the  time  attribution  based
restricted  share  units  on  the  second  anniversary  of  the  applicable  adoption  date;(iii)  a  vesting  of  25%  of  the  time  attribution  based
restricted share units on the third anniversary of the applicable adoption date;(iv) a vesting of 25% of the time attribution based restricted
share units on the fourth anniversary of the applicable adoption date.

(2) 1/3 of the awarded restricted share units shall vest based on the Group’s weighted average market value during the last 30 days prior
to the initial vesting date, the terms and conditions of which are set forth in the executed award agreements. In the event that dilution of
additional share issuance occurs, the market value targets herein shall be adjusted accordingly with the proportion of additional share
issuance. In the event that the average market value of Standard & Poor’s 500 index falls by more than 20% from the date of grant, it
shall be deemed as a decline of the market, and the board of the Group or a committee that board delegated its powers or authority to
shall adjust the vesting schedule as appropriate.

(3) 1/3 of the awarded restricted share units shall vest based on certain performance conditions:(i) a vesting of 20% of the performance
conditions based restricted share units if one of the performance conditions has been met at the initial vesting date;(ii) a vesting of 40%
of the performance conditions based restricted share units if two of the performance conditions have been met at the initial vesting date;
(iii) a vesting of 60% of the performance conditions based restricted share units if three of the performance conditions have been met at
the  initial  vesting  date;(iv)  a  vesting  of  80%  of  the  performance  conditions  based  restricted  share  units  if  four  of  the  performance
conditions have been met at the initial vesting date; (v) a vesting of all of the performance conditions based restricted share units if five
of the performance conditions or more have been met at the initial vesting date. As of December 31, 2020, it is probable that the 1/3 of
the awarded restricted share units are fully vested because it is probable that at least five of the performance conditions will be met at the
initial vesting date.

Notwithstanding  the  foregoing,  if  the  Group’s  weighted  average  market  value  during  the  last  30  days  prior  to  the  initial  vesting  date
reaches US$2 billion or above, and to the extent such restricted share units have been granted and outstanding, any such restricted share
unit (except for those are based on time attribution) shall vest in full with immediate effect, inure to the benefit of the related grantees.

For the years ended December 31, 2020, 2021 and 2022, the Group granted 4,093,079, 1,649,045 and 755,734 restricted share units to
employees, respectively.

F-52

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(d) 2020 Plan (Continued)

The following table sets forth the restricted share units of 2020 Plan for the periods presented:

Outstanding as of December 31, 2019

Granted
Forfeited

Outstanding as of December 31, 2020

Granted
Vested
Forfeited

Outstanding as of December 31, 2021

Granted
Vested
Forfeited

Outstanding as of December 31, 2022

     Weighted
average
exercise
price
US$

     Weighted
average
remaining
contractual
term

Number of
restricted
share units

Aggregate
intrinsic
value
US$

—  
4,093,079  
(13,461) 
4,079,618  
1,649,045  
(4,048,000) 
(198,872) 
1,481,791
755,734
(720,232)
(270,482)
1,246,811  

—  
—  
—  
—  
—  
—  
—  
—
—
—
—
—  

—  
—  
—  
9.70  
—  
—  
—  

8.95
—
—
—
8.55  

—
—
—
83,632
—
—
—
30,531
—
—
—
2,266

A summary of non-vested restricted share units activities for the year ended December 31, 2022 is presented below:

Non-vested at December 31, 2021

Granted
Vested
Forfeited

Non-vested at December 31, 2022

Number of restricted share
units

     Weighted average

grant-
date fair value
US$

1,481,791  
755,734  
(720,232) 
(270,482) 
1,246,811  

17.80
10.11
19.71
14.52
2.98

Share-based compensation expenses related to the aforementioned restricted share units of 2020 Plan are included in:

Research and development expenses
Administrative expenses
Equity in loss of affiliates

Year Ended December 31, 

2020
RMB
71,945  
76,663  
7,500  
156,108  

2021
RMB
118,368  
227,392  
8,512  
354,272  

RMB
18,055  
37,399  
4,214  
59,668  

2022
     US$ (Note 2.5)
2,618
5,422
611
8,651

Apart from the aforementioned restricted share units, up to 1,446,875 shares can be issued in the form of restricted share unit to eligible
grantees that the board of the Group or a committee that board delegated its powers or authority determined appropriate with immediate
effect of being fully vested, which are defined as special awards and are subject to terms and conditions under 2018 Plan.For the year
ended  December  31,  2020,  the  Group  granted  1,328,120  such  restricted  share  units  to  employees.  All  the  restricted  share  units  were
vested as of December 31, 2021.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(d) 2020 Plan (continued)

The following table sets forth the restricted share units subject to terms and conditions under 2020 Plan for the periods presented:

Outstanding as of December 31, 2019

Granted
Vested

Outstanding as of December 31, 2020

Vested

Outstanding as of December 31, 2021

     Weighted
average
exercise
price
US$

     Weighted
average
remaining
contractual
term

Number of
restricted
share units

—  
1,328,120  
(565,200) 
762,920  
(762,920) 
—  

—  
1.00  
1.00  
1.00  
1.00  
—  

—  
—  
—  
9.65  
—  
—  

Aggregate
intrinsic
value
US$

—
—
—
14,877
—
—

Share-based compensation expenses related to these restricted share units are included in:

Research and development expenses
Administrative expenses
Equity in loss of affiliates

(e) 2021 Share Incentive Plan (“2021 Plan”)

Year Ended December 31, 

2020
RMB
67,181  
25,985  
19,085  
112,251  

2021
RMB

4,156  
54,011  
720  
58,887  

RMB

2022
     US$ (Note 2.5)
—
—
—
—

—  
—  
—  
—  

On May 28, 2021, the Group adopted 2021 Plan. Under the 2021 Plan, the maximum aggregate number of shares authorized to be issued
is 12,023,618 ordinary shares, provided that the maximum number of shares to be issued in the form of restricted share units shall not
exceed 6,011,809 ordinary shares.

Stock options granted to employees under the 2021 Plan are graded vesting in four years with 25% vesting each year. For the years ended
December 31, 2021 and 2022, the Group granted 2,698,245 and 2,787,738 stock options to its employees, respectively. Nil options and
519,377 were exercisable as of December 31, 2021 and 2022, respectively.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(e) 2021 Share Incentive Plan (“2021 Plan”) (continued)

The following table sets forth the stock options activities of 2021 Plan for the year ended December 31,2022:

Outstanding as of December 31, 2020

Granted
Forfeited

Outstanding as of December 31, 2021

Granted
Forfeited
Expired

Outstanding as of December 31, 2022
Exercisable as of December 31, 2022

     Weighted
average
exercise
price
US$

     Weighted
average
remaining
contractual
term

Number of
shares

Aggregate
intrinsic
value
US$ 

—  
2,698,245  
(253,805) 
2,444,440
2,787,738
(880,304)
(46,202)
4,305,672  
519,377  

—  
26.43  
26.39  
26.44
9.20
18.21
26.39
17.32  
26.46  

—  
—  
—  

9.57
—
—
—
8.89  
8.53  

—
—
—
—
—
—
—
—
—

A summary of non-vested stock option activities for the year ended December 31, 2022 is presented below:

Non-vested at December 31, 2021

Granted
Vested
Forfeited

Non-vested at December 31, 2022

Number of shares

2,444,440  
2,787,738  
(565,579)
(880,304) 
3,786,295  

Weighted average
grant-
date fair value
US$

14.12
2.70
14.18
7.64
1.76

Stock options granted to the employees were measured at fair value on the dates of grant using the Binomial Option Pricing Model with
the following assumptions:

Expected volatility
Risk-free interest rate (per annum)
Exercise multiple
Expected dividend yield
Time to maturity (in years)

Year Ended December 31,

2021

51.77%-54.37 %
1.44%-1.68 %
2.20-2.80
—
10

2022

53.66%-58.97%
1.88%-3.53%
2.20-2.80
—
10

F-55

    
    
 
 
 
 
 
    
    
 
 
 
 
    
     
 
 
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(e) 2021 Share Incentive Plan (“2021 Plan”) (continued)

The expected volatility was estimated based on the historical volatility of comparable peer public companies with a time horizon close to
the expected term of the Group’s options. The risk-free interest rate was estimated based on the yield to maturity of U.S. treasury bonds
denominated  in  US$  for  a  term  consistent  with  the  expected  term  of  the  Group’s  options  in  effect  at  the  option  valuation  date.  The
expected exercise multiple was estimated as the average ratio of the stock price to the exercise price when employees would decide to
voluntarily  exercise  their  vested  options.  As  the  Group  did  not  have  sufficient  information  of  past  employee  exercise  history,  it  was
estimated by referencing to a widely-accepted academic research publication. Expected dividend yield is zero as the Group has never
declared or paid any cash dividends on its shares, and the Group does not anticipate any dividend payments in the foreseeable future.
Time to maturity equals to the contract life of the option.

Share-based compensation expenses related to the stock options of 2021 Plan are included in:

Research and development expenses
Administrative expenses
Equity in loss of affiliates

2020
RMB

—  
—  
—
—  

Year Ended December 31, 

2021
RMB
20,430  
35,226  

—

55,656  

RMB
36,104  
75,980  
2,715
114,799  

2022
     US$ (Note 2.5)
5,234
11,016
393
16,643

Restricted share units granted to employees under the 2021 Plan will be exercisable under the following items:

(1) 1/3 of the awarded restricted share units shall vest based on the following time attribution:(i) a vesting of 25% of the time attribution
based  restricted  share  units  on  the  first  anniversary  of  the  applicable  adoption  date;(ii)  a  vesting  of  25%  of  the  time  attribution  based
restricted  share  units  on  the  second  anniversary  of  the  applicable  adoption  date;(iii)  a  vesting  of  25%  of  the  time  attribution  based
restricted share units on the third anniversary of the applicable adoption date;(iv) a vesting of 25% of the time attribution based restricted
share units on the fourth anniversary of the applicable adoption date.

(2) 1/3  of  the  awarded  restricted  share  units  shall  vest  based  on  the  Group’s  weighted  average  share  price  during  any  consecutive
90 days within one year after the adoption date of 2021 Plan (the “Share Price Based Awards”):

a vesting of 75% of the Share Price Based Awards on the first anniversary of the adoption date of 2021 Plan, if the Group’s

i.
weighted average share price reaches the first share price level as approved by the Board;

a  vesting  of  100%  of  the  Share  Price  Based  Awards  on  the  first  anniversary  of  the  adoption  date  of  2021  Plan,  if  the

ii.
Group’s weighted average share price reaches the second share price level as approved by the Board;

In the event that any share issuance in connection with any share split, share dividend, reclassification or other similar event occurs, the
target  share  price  herein  shall  be  adjusted  accordingly  with  the  proportion  of  additional  share  issuance.  In  the  event  that  the  average
market value of NASDAQ Biotechnology Index falls by more than 20% from the adoption date of the 2021 Plan, it shall be deemed as a
decline of the market, and the Group shall adjust the vesting schedule as appropriate.

(3) 1/3 of the awarded restricted share units shall vest based on the performance conditions as approved by the Board (the “Performance
Conditions Based Awards”):

F-56

    
    
    
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(e) 2021 Share Incentive Plan (“2021 Plan”) (continued)

a vesting of 75% of the Performance Conditions Based Awards if more than nine (including nine) but less than twelve of

i.
the fifteen performance conditions have been met on or before the first anniversary of the adoption date;

a vesting of all of Performance Conditions Based Awards if more than twelve (including twelve) of the fifteen performance

ii.
conditions have been met on or before the first anniversary of the adoption date;

As of December 31, 2021, it is probable that the 2/3 of the awarded restricted share units are fully vested because it is probable that the
Group’s weighted average share price can reach the second share price level as approved by the Board during any consecutive 90 days
within one year after the adoption date of 2021 Plan, and more than twelve of the fifteen performance conditions will be met on or before
the first anniversary of the adoption date.

The following table sets forth the restricted share units of 2021 Plan for the period presented:

Outstanding as of December 31, 2020

Granted
Forfeited

Outstanding as of December 31, 2021

Granted
Vested
Forfeited

Outstanding as of December 31, 2022

     Weighted 
average 
exercise 
price 
US$

     Weighted 
average 
remaining 
contractual 
term

Number of
 restricted 
share units

Aggregate 
intrinsic 
value 
US$

—  
1,827,166  
(170,913) 
1,656,253
821,215
(1,139,587)
(301,908)
1,035,973  

—  
—  
—  
—
—
—
—
—  

—  
—  
—  

9.57
—
—
—
8.55  

—
—
—
34,126
—
—
—
2,266

A summary of non-vested restricted share units activities for year ended December 31, 2022 is presented below:

Non-vested at December 31, 2021

Granted
Vested
Forfeited

Non-vested at December 31, 2022

F-57

Number of restricted 
share units

Weighted average
grant-date fair value
US$

1,656,253

821,215  
(1,139,587)
(301,908) 
1,035,973  

26.45
9.18
26.41
17.85
5.19

    
    
 
 
 
 
    
    
 
 
 
Table of Contents

I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(e) 2021 Share Incentive Plan (“2021 Plan”) (continued)

Share-based compensation expenses related to the restricted share units of 2021 Plan are included in:

Research and development expenses
Administrative expenses
Equity in loss of affiliates

(f) 2022 Share Incentive Plan (“2022 Plan”)

Year Ended December 31, 

2020
RMB

—
—  
—  
—  

2021
RMB
44,227
73,332  
—  
117,559  

RMB
46,649
99,708  
4,077  
150,434  

2022
     US$ (Note 2.5)
6,763
14,456
591
21,810

On June 17, 2022, the Group adopted 2022 Plan. Under the 2022 Plan, the maximum aggregate number of shares authorized to be issued
is 13,148,594 ordinary shares, provided that the maximum number of shares to be issued in the form of restricted share units shall not
exceed 7,670,017 ordinary shares.

As of December 31, 2022, no options or restricted share units were granted under 2022 Plan.

(g) Establishment of Biomaster Trust

Biomaster Trust was established under the trust deed dated October 23, 2019, between the Company and TMF Trust (HK) Limited, or
TMF  Trust,  as  the  trustee  of  the  Biomaster  Trust.  Through  the  Biomaster  Trust,  the  Company’s  ordinary  shares  and  other  rights  and
interests  under  awards  granted  pursuant  to  2017  Plan  and  2018  Plan  may  be  provided  to  certain  recipients  of  equity  awards.  Upon
satisfaction of vesting conditions, TMF Trust will exercise the equity awards and transfer the relevant ordinary shares and other rights
and  interests  under  the  equity  awards  to  the  relevant  grant  recipients  with  the  consent  of  the  advisory  committee  of  Biomaster  Trust.
TMF  Trust  shall  not  exercise  the  voting  rights  attached  to  such  ordinary  shares  unless  otherwise  directed  by  the  advisory  committee,
whose members shall be appointed by I-Mab. The Company has the power to direct the relevant activities of Biomaster Trust and it has
the ability to use its power over the Biomaster Trust to affect its exposure to returns. Therefore, the assets and liabilities of the Biomaster
Trust are included in the Group’s consolidated balance sheets.

(h) Surrender of stock options

On  January  17,  2020,  the  Group  completed  its  IPO.  According  to  the  amendments  to  2017  Plan,  the  maximum  aggregate  number  of
shares  which  may  be  granted  pursuant  to  all  awards  under  2017  Plan  was  changed  to  9,609,084.  Each  of  the  Company’s  founders,
namely Zheru Zhang, Lili Qian, Zhengyi Wang and Lei Fang surrendered 83,142 unvested stock options that were granted to him or her
under  2017  Plan  before,  totally  332,566  unvested  options,  for  no  consideration,  and  these  stock  options  were  cancelled  immediately.
According  to  the  amendments  to  2018  Plan,  the  maximum  aggregate  number  of  shares  which  may  be  granted  pursuant  to  all  awards
under  2018  Plan  was  changed  to  11,005,888.  The  director  of  the  Company,  Dr.  Jingwu  Zhang  Zang  surrendered  2,544,917  unvested
options that were granted to him under 2018 Plan, for no consideration, and these stock options were cancelled immediately. Upon the
completion of the Company’s IPO in January 2020, the Group has recorded RMB91,051 share-based compensation expense related to
these surrendered options.

F-58

    
    
    
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

16. SHARE-BASED COMPENSATION (CONTINUED)

(h) Surrender of stock options (continued)

The stock options surrendered by the founders should be accounted for as capital contribution. As the founders did not get the title of the
stock options to be surrendered and the number of stock options would not be determined until listing, the capital contribution was not
accounted for during the year ended December 31, 2019. For the year ended December 31, 2020, the Group has reclassified RMB91,051
from  additional  paid-in  capital  –  share-based  compensation  to  additional  paid-in  capital  –  capital  contribution  relating  to  the  stock
options surrendered in the consolidated statement of comprehensive income.

Share-Based Compensation Expense

The allocation of share-based compensation expense was as follows:

Research and development expenses
Administrative expenses
Equity in loss of an affiliate

Year Ended December 31, 

2020

RMB
284,431
209,033  
32,707  
526,171  

2021

RMB
201,926
406,683  
13,267  
621,876  

2022

RMB
117,876
239,272  
13,852  
371,000  

     US$ (Note 2.5)
17,090
34,691
2,008
53,789

17. LICENSING AND COLLABORATION ARRANGEMENTS

The following is a description of the Group’s significant licensing and collaboration agreements entered into from January 1, 2017 to
December 31, 2022.

A. In-Licensing Arrangements

Licensing Agreement with MorphoSys AG (“MorphoSys”)

In November 2017, the Group entered into a license and collaboration agreement with MorphoSys, with respect to the development and
commercialization of MOR202/TJ202, MorphoSys´s proprietary investigational antibody against CD38 (the “CD38 product”).

Under this agreement, MorphoSys granted to the Group an exclusive, royalty-bearing, sublicensable license to exploit MOR202/TJ202
for  any  human  therapeutic  or  diagnostic  purpose  in  the  licensed  territory,  namely  mainland  China,  Hong  Kong,  Macau  and  Taiwan
(collectively “Greater China”).

Pursuant to this agreement, the Group granted to MorphoSys an exclusive license to its rights in any inventions that the Group make
while exploiting the CD38 product under this agreement, solely to exploit the CD38 product outside of Greater China.

Pursuant  to  this  agreement,  the  Group  paid  to  MorphoSys  an  upfront  license  fee  of  US$20.0  million  (equivalent  to  approximately
RMB132.7 million). The Group also agreed to make milestone payments to MorphoSys, conditioned upon the achievement of certain
development,  regulatory  and  commercial  milestones,  in  the  aggregate  amount  of  US$98.5  million  (equivalent  to  approximately
RMB653.5 million). Such milestones include first patient dosed in human clinical trials, marketing approval, and first annual net sales of
CD38 products covered by the agreement in excess of a certain amount.

F-59

    
    
    
 
 
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

A. In-Licensing Arrangements (continued)

Licensing Agreement with MorphoSys AG (“MorphoSys”) (continued)

In addition, the Group is required to pay tiered low-double-digit royalties to MorphoSys on a country-by-country and product-by-product
basis  during  the  term,  commencing  with  the  first  commercial  sale  of  a  relevant  licensed  product  in  Greater  China.  Unless  terminated
earlier  in  accordance  with  the  terms  thereof,  this  agreement  will  remain  in  effect  until  the  expiration  of  the  Group’s  last  payment
obligation under the agreement.

In  2017,  the  Group  paid  US$20.0  million  (equivalent  to  approximately  RMB132.7  million)  upfront  fee  to  MorphoSys,  which  was
recorded as research and development expense. No additional payments were made in 2018. Due to the uncertainty involved in meeting
these developments and commercialization based targets, the Group evaluated and concluded that the remaining milestones are still not
probable as of December 31, 2018. In March and April 2019, the project achieved the first and second milestone and the Group paid
US$8.0 million (equivalent to approximately RMB55.7 million) of milestone fees to MorphoSys, which was recorded as research and
development  expense  in  the  consolidated  statement  of  comprehensive  loss  for  the  year  ended  December  31,  2019.  No  additional
payments were made for the years ended December 31, 2020, 2021 and 2022 as no milestone has been achieved.

Licensing Agreement with Genexine, Inc. (“Genexine”)

In December 2017, the Group entered into an intellectual property agreement with Genexine with respect to GX-I7/TJ107, a long-acting
IL-7 cytokine. Under this agreement, the Group obtained an exclusive, sublicensable and transferable license to use and otherwise exploit
certain intellectual property in connection with the pre-clinical and clinical development, manufacturing, sale and distribution of GX-I7
to treat cancer in Greater China.

Under  the  terms  of  the  agreement,  the  Group  made  an  upfront  payment  of  US$12.0  million  (equivalent  to  approximately  RMB79.6
million)  to  Genexine  which  was  recorded  as  a  research  and  development  expense  in  January  2018.  The  Group  also  agreed  to  make
milestone payments in the aggregate amount of US$23.0 million (equivalent to approximately RMB152.6 million), conditioned upon the
achievement of certain development milestones, including completion of Phase 2 and Phase 3 clinical studies and new drug application
(“NDA”) or biologic license application (“BLA”) approval in Greater China.

Further,  the  Group  agreed  to  make  milestone  payments  in  the  aggregate  amount  of  US$525.0  million  (equivalent  to  approximately
RMB3,482.7 million), conditioned upon the achievement of certain cumulative net sales of GX-I7 up to US$2,000 million. The Group
also is required to pay Genexine a low-single-digit percentage royalty in respect of the total annual net sales of GX-I7. The aforesaid
milestones and royalties (other than the upfront payment) will be reduced by 50% following the entry of a generic version of GX-I7 in
China, Hong Kong, Macau and Taiwan without the consent or authorization of the Group or any of the Group’s sublicensees.

Unless terminated earlier in accordance with the terms thereof, this agreement will remain in effect until the later of (i) the expiry of the
last to expire patent of the licensed intellectual property that includes a valid claim for Greater China and that covers the composition of
GX-I7; and (ii) 15 years from the date of the first commercial sale of GX-I7.

No additional payments to Genexine were made in the year ended December 31, 2020, 2021 and 2022. Due to the uncertainty involved
in meeting these development and commercialization based targets, the Group evaluated and concluded that the remaining milestones are
still not probable as of December 31, 2020, 2021 and 2022.

F-60

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

A. In-Licensing Arrangements (continued)

Licensing Agreement with Genexine, Inc. (“Genexine”) (continued)

In  May  2020,  the  Group  and  Genexine  entered  into  an  amendment  to  this  agreement  whereby  both  parties  desire  to  establish
collaboration  on  TJ107  GBM  Study  in  Greater  China  Under  the  terms  of  the  expanded  collaboration,  the  Group  will  be  mainly
responsible  for  using  commercially  reasonable  efforts  to  conduct  the  Phase  2  GBM  clinical  trial  in  Greater  China,  and  Genexine  will
share  the  development  strategies,  data  and  costs  for  success  of  this  clinical  trial.  The  Group  shall  undertake  to  bear  two-thirds  (2/3)
proportion of the clinical development costs and Genexine shall undertake to bear one-third (1/3) proportion of these costs. For the year
ended December 31, 2020, the costs incurred for the development of this new indication was RMB4.3 million and thus RMB2.9 million
expense was recorded in the consolidated statement of comprehensive income. For the year ended December 31, 2021, the costs incurred
for the development of this new indication was RMB13.2 million and thus RMB8.8 million expense was recorded in the consolidated
statement of comprehensive loss. For the year ended December 31, 2022, the costs incurred for the development of this new indication
was RMB7.0 million and thus RMB4.7 million expense was recorded in the consolidated statement of comprehensive loss.

Licensing Agreement with MorphoSys

In November 2018, the Group entered into a license and collaboration agreement with MorphoSys for MorphoSys´s proprietary antibody
(MOR210/TJ210)  directed  against  C5aR  (the  “C5aR  Agreement”).  Under  this  agreement,  the  Group  obtained  an  exclusive,  royalty-
bearing license to explore, develop and commercialize certain anti-C5aR antibodies in Greater China and South Korea.

The Group will perform and fund all global development activities related to the development of MOR210/TJ210 in Greater China and
South Korea, including all relevant clinical trials (including in the U.S. and China) and all development activities required for IND filing
in  the  US  as  well  as  CMC  development  of  manufacturing  processes.  MorphoSys  retains  rights  in  respect  of  development  and
commercialization of MOR210/TJ210 in the rest of the world.

Under  the  terms  of  the  agreement,  the  Group  also  agreed  to  make  milestone  payments  conditional  upon  the  achievement  of  certain
development milestones and certain annual net sales of anti-C5aR antibodies. The Group is also required to pay to MorphoSys tiered
mid-single-digit royalties on annual net sales of anti-C5aR antibody products within the licensed territory.

In 2018, the Group paid US$3.5 million (equivalent to approximately RMB23.2 million) upfront fee to MorphoSys, which was recorded
as research and development expense in the consolidated statement of comprehensive loss for the year ended December 31, 2018. No
additional payments were made in the year ended December 31, 2019. In August 2020, the project achieved the first milestone and the
Group  paid  US$1.0  million  (equivalent  to  approximately  RMB6.9  million)  of  milestone  fees  to  Morphosys,  which  was  recorded  as
research and development expenses in the consolidated statement of comprehensive income for the year ended December 31, 2020. In
January  2021,  the  project  achieved  the  second  milestone  and  the  Group  paid  US$1.5  million  (equivalent  to  approximately  RMB9.7
million)  of  milestone  fees  to  Morphosys  and  the  related  withholding  tax  of  RMB1.1  million,  which  was  recorded  as  research  and
development expenses in the consolidated financial statements of comprehensive loss for the year ended December 31, 2021. Due to the
uncertainty  involved  in  meeting  these  development  and  commercialization  based  targets,  the  Group  evaluated  and  concluded  that  the
remaining milestones are still not probable as of December 31, 2020, 2021 and 2022.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

A. In-Licensing Arrangements (continued)

Licensing Agreement with MorphoSys (continued)

Summarized financial information related to the above agreement is presented below:

Years Ended December 31, 
Research and Development Expense

2022
2021
2020

     Upfront Fees      Milestones

—
—   US$
—   US$

—
1,500  
1,000  

Extension/ Termination of 
agreements

Amortization of prepaid 
research and 
development

—
—  
—  

—
—  
—  

As of December 31,

Intangible asset balance
—
—
—

In  June  2022,  Morphosys  entered  into  an  equity  participation  agreement  and  license  agreements  to  allow  HIBio  to  develop  and
commercialize  MorphoSys’  felzartamab,  an  anti-CD38  antibody,  and  MOR210,  an  anti-C5aR1  antibody.  Under  the  terms  of  the
agreements, HIBio will obtain exclusive rights to develop and commercialize felzartamab and MOR210 across all indications worldwide,
with the exception of Greater China for felzartamab and Greater China and South Korea for MOR210. Upon signing, MorphoSys also
receives an upfront payment of US$15 million for MOR210. Subject to the terms agreed in the C5aR Agreement, I-Mab is entitled to
share certain economics upon certain clinical milestones in the U.S. Accordingly, the Group received US$0.9 million from MorphoSys
and recorded RMB6.0 million in revenue in the consolidated statement of comprehensive loss for the year ended December 31, 2022.

Licensing Agreement with MacroGenics

In  July  2019,  the  Group  entered  into  a  license  and  collaboration  agreement  with  MacroGenics,  Inc.  for  development  and
commercialization of an Fc-optimized antibody known as enoblituzumab that targets B7-H3, including in combination with other agents,
such  as  the  anti-PD-1  antibody  known  as  MGA012,  in  the  People’s  Republic  of  China,  Hong  Kong,  Macau  and  Taiwan  (“Greater
China”).  Under  this  agreement,  the  Group  obtained  an  exclusive,  sublicenseable,  royalty-bearing  license  to  MacroGenics’  patents  and
know-how  to  develop  and  commercialize  the  enoblituzumab  product,  and  a  combination  regimen  of  enoblituzumab  and  MGA012,  in
Greater China during the term of the agreement.

In  exchange  for  these  rights,  in  addition  to  certain  financial  consideration,  the  Group  will  grant  to  MacroGenics  a  royalty-free,
sublicenseable, license outside of Greater China, to the patents and know-how that are related to the enoblituzumab product or useful or
necessary for MacroGenics to develop or commercialize the enoblituzumab product or a product containing MGA012, and combinations
thereof. The license is (i) non-exclusive with respect to the enoblituzumab product, and (ii) exclusive with regard to MGA012.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

A. In-Licensing Arrangements (continued)

Licensing Agreement with MacroGenics (continued)

Pursuant  to  the  agreement,  the  Group  paid  an  upfront  fee  of  US$15.0  million  (equivalent  to  approximately  RMB104.4  million)  to
MacroGenics, which was recorded as research and development expense in the consolidated statement of comprehensive loss for the year
ended December 31, 2019. No additional payments were made in the year ended December 31, 2020. Under the terms of the agreement,
the Group also agreed to pay MacroGenics development milestone fees of up to US$75.0 million and regulatory milestones fees of up to
US$60.0 million, respectively, and tiered double-digit royalties (ranging from mid-teens to twenty percent) based on annual net sales in
the  territories.  In  September  2021,  the  project  achieved  the  first  milestone  and  the  Group  paid  around  US$4.5  million  (equivalent  to
approximately RMB28.9 million) of milestone fees to MacroGenics, which was recorded as research and development expenses in the
consolidated  statement  of  comprehensive  loss  for  the  year  ended  December  31,  2021.  No  additional  payments  were  made  in  the  year
ended December 31, 2022.

The Group is responsible for all development costs in Greater China. MacroGenics is responsible for all development costs in the rest of
the world, except that the Group is responsible for 20% of the costs incurred in (i) activities supporting global clinical trials in which the
Group participates, (ii) certain CMC activities for material intended to be used in clinical trials in Greater China, and (iii) companion
diagnostic development and validation for indications being studied in Greater China.

Due to the uncertainty involved in meeting these development and commercialization based targets, the Group evaluated and concluded
that the remaining milestones are still not probable as of December 31, 2020 and 2021.

Summarized financial information related to the above agreement is presented below:

Year ended December 31, 
Research and Development Expense

Upfront Fees

Milestones

—     
—   US$
—  

—     

4,484  
—  

Extension/ Termination of 
agreements

Amortization of prepaid 
research and 
development

—     
—  
—  

—     
—  
—  

As of December 31,

Intangible asset balance
—
—
—

2022
2021
2020

In July 2022, due to an unexpected high incidence of fatal bleeding, MacroGenenics terminated a phase 2 study of enoblituzumab as a
combination  therapy  with  PD-1  antibody  or  PD-1/LAG3  bispecific  antibody  in  patients  with  head  and  neck  cancers  (NHSCC).  The
Company has exercised its termination right under the license and collaboration agreement with MacroGenics by serving a termination
notice to MacroGenics on August 29, 2022. The termination took effect in February 2023.

Licensing Agreement with Ferring

In November 2016, the Company, as the licensee, entered into a license and sublicense agreement with Ferring International Center SA
(“Ferring”),  with  respect  to  Olamkicept  (TJ301),  a  potential  highly  differentiated  IL-6  blocker  for  ulcerative  colitis  and  other
autoimmune  diseases  (the  “Ferring  In-licensing  Agreement”).  Under  the  Ferring  Agreement,  Ferring  granted  to  I-Mab  an  exclusive
license to research, commercially develop, make, import, use, sell, dispose of, offer to sell or dispose of the licensed product in China
(including Hong Kong, Macau), Taiwan and Korea. In July 2018, the Company sub-licensed the above license to I-Mab Hong Kong.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

A. In-Licensing Arrangements (continued)

Licensing Agreement with Ferring (continued)

In September 2020, I-Mab Hong Kong agreed to assign all rights and obligations/ownership of Target Pipelines (including TJ301) to I-
Mab  Hangzhou  (see  Note  10  (a)).  The  Group  entered  into  a  sublicense  agreement  with  I-Mab  Hangzhou  (“TJ301  Sublicense
Agreement”), under which the Group sublicensed to I-Mab Hangzhou an exclusive, sublicensable license to develop, manufacture and
commercialize olamkicept in mainland China, Hong Kong, Macau, Taiwan and South Korea.

In the second half year of 2021, I-Mab Hangzhou achieved one of the development milestones by completing the Phase IIA study report
in China. Upon the achievement of the milestone, I-Mab Hangzhou made a milestone payment with the amount of US$3 million to I-
Mab Hong Kong. As I-Mab Hangzhou’s payment of US$3 million is just passthrough payment to I-Mab, and will be eventually paid to
Ferring, which does not have any financial impact to I-Mab. The Company recorded it as a payable to Ferring in the consolidated balance
sheets for the year ended December 31, 2021 . The US$3 million payable was settled in December 2022.

Other In-Licensing Arrangements

In  addition  to  the  above  arrangements,  the  Group  has  entered  into  other  various  in-licensing  and  collaboration  agreements  with  third
party  licensors  to  develop  and  commercialize  drug  candidates.  Based  on  the  terms  of  these  agreements  the  Group  is  contingently
obligated to make additional material payments upon the achievement of certain contractually defined milestones. The Group recorded
US$3.1  million  (equivalent  to  approximately  RMB21.3  million)  milestone  payment  during  the  year  ended  December  31,  2020.  The
Group  recorded  US$1.1  million  (equivalent  to  approximately  RMB6.8  million)  upfront  payment  and  US$2.9  million  (equivalent  to
approximately RMB19.8 million) milestone payment as research and development expenses during the year ended December 31, 2021.
The Group recorded RMB0.5 million (US$0.07 million) upfront payment and RMB2.8 million (US$0.4 million) milestone payment as
research  and  development  expenses  during  the  year  ended  December  31,  2022.  As  of  December  31,  2022,  under  the  terms  of  the
agreements, the licensors are eligible to receive from the Group up to an aggregate of approximately US$173.4 million (equivalent to
approximately RMB1,207.8 million) in milestone payments upon the achievement of contractually specified development milestones and
sales milestones, such as regulatory approval for the drug candidates, which may be before the Group has commercialized the drug or
received any revenue from sales of such drug candidate, which may never occur.

B.Out-Licensing and Collabration Arrangement

Collaboration Agreement with ABL Bio

In July 2018, the Group and ABL Bio entered into a collaboration agreement (the “ABL Bio Collaboration”) whereby both parties agreed
to collaborate to develop three PD-L1 based bispecific antibodies by using ABL Bio’s proprietary BsAb technology and commercialize
them in their respective territories, which, collectively, include Greater China and South Korea, and other territories throughout the rest
of the world if both parties agree to do so in such other territories during the performance of the agreement.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

B. Out-Licensing and Collabration Arrangements (continued)

Collaboration Agreement with ABL Bio (continued)

At contract inception, as both I-Mab and ABL Bio participate actively in the research and development activity. Also, the parties share
the  risk  of  failure  of  the  BsAb  products  and  share  the  income  of  licensing,  so  this  contract  meet  the  criteria  of  the  definition  of  a
collaborative  arrangement,  the  Group  categorized  this  agreement  within  the  scope  ASC  808.  Prior  to  commercialization,  the  Group
recorded the share of the expenses incurred by the collaboration for the development of three PD-L1 based bispecific antibodies products
in research and development expense in the consolidated statements of comprehensive income (loss). For the year ended December 31,
2020, RMB43.6 million expenses were incurred by the Group and RMB44.0 million expenses were incurred by ABL Bio. Accordingly,
the Group recorded RMB43.8 million (50% cost sharing) of expenses in the Group’s consolidated statement of comprehensive income
for the year ended December 31, 2020. For the year ended December 31, 2021, RMB27.9 million expenses were incurred by the Group
and RMB20.7 million expenses were incurred by ABL Bio. Accordingly, the Group recorded RMB24.3 million (50% cost sharing) of
expenses  in  the  Group’s  consolidated  statement  of  comprehensive  loss  for  the  year  ended  December  31,  2021.  For  the  year  ended
December 31, 2022, RMB63.1 million expenses were incurred by the Group and RMB33.7 million expenses were incurred by ABL Bio.
Accordingly,  the  Group  recorded  RMB48.4  million  (50%  cost  sharing)  of  expenses  in  the  Group’s  consolidated  statement  of
comprehensive loss for the year ended December 31, 2022.

Collaboration Agreements with Tracon Pharmaceuticals, Inc. (“Tracon”)

In  November  2018,  the  Group  entered  into  collaboration  agreements  with  Tracon,  under  which  both  parties  agreed  to  co-develop  the
Group’s proprietary CD73 antibody, TJD5 (the “TJD5 Agreement”) and co-develop up to five BsAbs (the “BsAbs Agreement”). Both
agreements  may  be  terminated  by  either  party  for  the  other  party’s  uncured  material  breach,  bankruptcy  or  insolvency  or  for  safety
reasons. In addition, the agreement in respect of TJD5 may be terminated by the Group: (i) for convenience within a certain period upon
completing different clinical stages subject to certain payments and royalties, based on the clinical stage, that would be owed to Tracon
upon  the  exercise  of  such  termination  for  convenience;  (ii)  in  the  event  that  Tracon  causes  the  Phase  1  study  timeline  to  be  delayed
beyond the agreed extension periods; or (iii) if the Group decides to end the development of the collaborative product prior to its first
commercial  sale.  Further,  prior  to  the  first  commercial  sale,  Tracon  may  deem  this  agreement  to  be  terminated  by  the  Group  if  it
reasonably believes that the Group has discontinued all meaningful development of the collaborative product for at least 12 months and
certain other conditions are met. Additionally, in March 2019, the Group agreed with Tracon and F. Hoffmann-La Roche Ltd (“Roche”)
on  a  clinical  supply  agreement  for  Roche  to  supply  atezolizumab  for  use  in  clinical  studies  under  the  collaboration  agreement  with
Tracon.  As  of  December  31,  2019,  no  payments  or  royalties  are  due  under  this  agreement.  The  Group  has  recorded  US$0.03  million
(equivalent to approximately RMB0.17 million), US$0.02 million (equivalent to approximately RMB0.11 million), nil of research and
development costs in the consolidated statement of comprehensive income for the year ended December 31, 2020, 2021 and 2022.

In April 2020, Tracon issued a notice of dispute with respect to the TJD5 Agreement and the BsAbs Agreement. The disputes relating to
the TJD5 Agreement and the BsAbs Agreement are the subject of a binding arbitration proceeding under the Rules of Arbitration of the
International Chamber of Commerce before an arbitration tribunal.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

B. Out-Licensing and Collabration Arrangements (continued)

Collaboration Agreements with Tracon Pharmaceuticals, Inc. (Continued)

In February 2021, the Group sent Tracon a notice to terminate the TJD5 Agreement, which would result in a prespecified termination fee
of US$9.0 million owing to Tracon. The Group accrued and recorded this termination fee of US$9.0 million (equivalent to approximately
RMB58.0  million)  as  administrative  expenses  in  the  consolidated  financial  statements  of  comprehensive  loss  for  the  year  ended
December 31, 2021.

On April 25, 2023, the arbitration award determined that the TJD5 Agreement has been terminated for a pre-agreed termination fee of
$9.0  million  plus  interest  payable  pursuant  to  the  original  agreement.  For  the  year  ended  December  31,  2022,  the  Group  accrued  and
recorded  the  interest  for  the  termination  fee  with  an  amount  of  US$0.6  million  (equivalent  to  approximately  RMB4.2  million)  as
administrative expenses in the consolidated financial statements of comprehensive loss. The tribunal also confirmed the termination of
the BsAb Agreement. Based on the arbitration award, I-Mab will bear a portion of Tracon's legal fees and costs, totaling approximately
US$13.5  million  (equivalent  to  approximately  RMB91.3  million),  which  was  recorded  as  administrative  expenses  in  the  consolidated
financial statements of comprehensive loss for the year ended December 31, 2022.

Licensing Agreement with CSPC Pharmaceutical Group Limited (“CSPC”)

In December 2018, the Group entered into a product development agreement with CSPC. The Group granted to CSPC exclusive, non-
transferable,  non-irrevocable  and  sublicensable  rights  in  the  PRC  (excluding  Hong  Kong,  Macau  and  Taiwan)  to  develop  and
commercialize TJ103 for treating type 2 diabetes.

CSPC is responsible for developing, obtaining market approval and commercializing the licensed products. The Group is responsible for
transferring the manufacturing technology of the licensed products to CSPC and assisting CSPC in the continued optimization of such
manufacturing technology thereafter.

In  consideration  of  the  license,  CSPC  agreed  to  pay  the  Group  an  upfront  fee  of  RMB15.0  million  and  milestone  payments  in  an
aggregate amount of RMB135.0 million conditioned upon achieving certain clinical development and regulatory approval milestones. In
addition,  the  Group  is  also  entitled  to  royalties  of  up  to  low-double-digit  percentages  in  respect  of  the  total  annual  net  sales  of  the
products after its commercialization in the PRC. On January 31, 2022, the Group and CSPC entered into an amendment to revise the
second milestone payment from RMB10 million to RMB8.5 million.

The Group determined that this collaboration is more reflective of a vendor-customer relationship and therefore within the scope of ASC
606. Under this agreement, the only one performance obligation was to grant TJ103 license to CSPC. Considering that the achievements
of milestones are constrained such that the transaction price shall initially only include upfront payment and subsequently, once another
milestone was achieved (that means when uncertainty associated with the variable consideration is subsequently resolved), the additional
milestone payment shall be included in the total transaction price when it is no longer probable that a significant reversal of cumulative
revenue would occur in future periods. As of December 31, 2018, the amount received of RMB14.2 million (net of VAT) was recorded as
advance from customers in the consolidated balance sheet. In February 2019, an additional amount of RMB0.8 million (net of VAT) was
received,  and  the  license  was  also  approved  by  China  intellectual  property  office  in  May  2019.  The  first  milestone  was  achieved  in
September 2019 and the amount of RMB15.0 million (net of VAT) was received according to the terms of the agreement. Accordingly,
RMB30.0  million  was  recognized  as  revenue  in  the  consolidated  statements  of  comprehensive  loss  for  the  year  ended  December  31,
2019.  No  additional  revenue  was  recognized  in  the  year  ended  December  31,  2020  as  no  further  milestone  has  been  achieved.  The
second  milestone  was  achieved  in  November  2021  and  RMB8.5  million  was  recognized  as  revenue  in  the  consolidated  statements  of
comprehensive loss for the year ended December 31, 2021. No revenue was recognized in the consolidated statements of comprehensive
loss for the year ended December 31, 2022.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

B. Out-Licensing and Collabration Arrangements (continued)

Strategic Alliance Agreement with PT Kalbe Genexine Biologics (“KG Bio”)

In  March  2020,  the  Group  entered  into  a  strategic  partnership  with  Kalbe  Genexine  Biologics  (“KG  Bio”)  to  grant  a  right  of  first
negotiation  for  an  exclusive  license  for  the  development  and  commercialization  of  two  I-Mab-discovered  product  candidates:
uliledlimab, a highly differentiated anti-CD73 antibody in Phase 1 development for advanced solid tumors (“First Program”), and an I-
Mab product candidate (“Second Program”) to be agreed upon by both parties in certain regions. Through this agreement, both parties
intend to negotiate the terms that will be reflected in definitive agreements for each prospective program covered under this agreement.

If and when the Group and KG Bio enter into the definitive licensing agreement, the Group will be eligible to receive from KG Bio an
aggregate  amount  of  up  to  approximately  US$340  million,  including  an  upfront  payment  and  subsequent  payments  conditional  upon
achieving  certain  development  and  commercial  milestones.  KG  Bio  will  pay  the  Group  tiered  royalties  in  the  low  to  mid-teen
percentages on net sales from certain regions. As the right of first negotiation has not been exercised and the definitive agreement has not
been entered into as of December 31, 2020, 2021 and 2022, no revenue was recognized during the years ended December 31, 2020, 2021
and 2022.

Global Strategic Partnership with AbbVie

On September 3, 2020, the Group, through I-Mab Biopharma (Shanghai) Co., Ltd. and I-Mab Biopharma US Limited, each a wholly-
owned subsidiary of the Group, entered into a broad global strategic partnership with AbbVie.

Pursuant  to  this  collaboration,  the  Group  will  grant  AbbVie  a  global  license,  excluding  Mainland  China,  Macau,  and  Hong  Kong,  to
develop and commercialize lemzoparlimab (also known as TJC4), an innovative anti-CD47 monoclonal antibody internally discovered
and  developed  by  I-Mab  for  the  treatment  of  multiple  cancers.  The  Group  will  retain  all  rights  to  develop  and  commercialize
lemzoparlimab (as well as certain other compounds directed against CD47) in Mainland China, Macau, and Hong Kong. The Group is
also responsible for performing the development activities at its sole cost and expense as outlined in the initial development plan. Such
initial  development  activities  consist  of  two  studies,  Study  I  and  Study  II.  Study  I  is  conducted  in  the  United  States  evaluating
lemzoparlimab  in  combination  with  pembrolizumab  or  rituximab  in  patients  with  relapsed  or  refractory  solid  tumors  and  lymphoma.
Study  II  is  conducted  in  Mainland  China  evaluating  the  safety,  tolerability,  pharmacokinetics,  pharmacodynamics  and  preliminary
efficacy of lemzoparlimab in patients with acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS). AbbVie will conduct
further global clinical trials (which the Group may elect to co-fund) to evaluate lemzoparlimab in multiple cancers.

Potential  collaboration  on  future  CD47-related  therapeutic  agents  is  also  allowed  for  under  this  arrangement,  including  CD47-based
bispecific antibodies and combination therapies with lemzoparlimab and AbbVie’s venetoclax (Venclexta ®). Each party will have the
opportunity, subject to rights of first negotiation to further licenses, to explore certain of each other’s related CD47-antibody programs in
their respective territories.

A  joint  governance  committee  was  established  as  set  forth  in  the  agreement,  functioning  as  an  oversight  and  governance  mechanism.
Both  parties  will  participate  in  the  joint  governance  committee  to  facilitate  decision-making  during  the  terms  of  the  collaborative
endeavor.  Furthermore,  the  Group  and  AbbVie  will  share  manufacturing  responsibilities,  with  AbbVie  having  the  opportunity  to
manufacture supply outside of Mainland China, Hong Kong and Macau and the Group being the primary manufacturer for supply for
Mainland China, Hong Kong and Macau.

Upon the satisfaction of all the pre-effect date covenants, the collaborative agreement took effect on December 10, 2020, on which date
the Group was entitled to a non-refundable upfront payment of US$180 million. In addition, the Group has received milestone payment
of  US$20  million  from  AbbVie  and  is  eligible  to  receive  up  to  US$1.74  billion  in  further  success-based  development,  regulatory  and
sales  milestone  payments  for  lemzoparlimab,  of  which  US$840  million  are  based  on  clinical  development  and  regulatory  approval
milestones, with the remainder based on commercial milestones. Upon commercialization of lemzoparlimab, AbbVie will also pay tiered
royalties from low-to-mid teen double-digit percentages on global net sales outside of Mainland China, Macau, and Hong Kong.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

B. Out-Licensing and Collabration Arrangements (continued)

Global Strategic Partnership with AbbVie (continued)

The Group identified three performance obligations: (1) grant of lemzoparlimab license upon the effective date, (2) delivering the Study I
initial development services, and (3) delivering the Study II initial development services. The total transaction price under the agreement
for the years ended December 31, 2020 and 2021 is US$250 million consisting of (i) the upfront payment of US$180 million upon the
effective  date,  (ii)  the  first  milestone  payment  of  US$20  million  upon  the  achievement  of  the  first  milestone  event  in  late
December 2020, and (iii) the second milestone payment of US$50 million as of December 31, 2020 and 2021 as the Group deemed that
the  achievement  of  the  second  milestone  event  is  probable  as  of  December  31,  2020  and  2021  that  a  significant  reversal  of  revenue
would  not  occur.  The  achievements  of  the  remaining  development  and  regulatory  based  milestone  events  are  constrained  as  of
December 31, 2020 and 2021, and will be included in the transaction price when uncertainty associated with the variable consideration is
subsequently resolved. Sales-based milestones and royalties will be recognized when the subsequent sales occur.

As  of  December  31,  2020  and  2021,  the  non-constrained  consideration  of  US$250  million  is  then  allocated  to  the  three  performance
obligations  based  on  the  relative  stand-alone  selling  price.  For  the  grant  of  lemzoparlimab  license,  the  Group  adopted  an  income
approach based on key assumptions and several factors including, but not limited to estimated market demand, stand-alone selling price
by  making  reference  to  market  comparable,  development  timeline,  regulatory  risks,  future  revenue  potential  and  discount  rate.  The
allocated price is US$228.8 million. The entire US$228.8 million (equivalent to approximately RMB1,502.9 million) was recognized as
revenue at the point of the license transfer at the effective date. For the Study I and Study II initial development services, a cost-plus
margin approach is utilized. The allocated price to Study I and Study II is US$11.0 million and US$10.2 million respectively. These two
performance obligations are determined to be satisfied over time. The Group uses a cost-to-cost input method to measure progress as that
method  best  depicts  the  transfer  of  the  two  performance  obligations  under  the  agreement.  As  of  December  31,  2020,  the
cumulative percentages complete in the cost-to-cost input method for Study I and Study II were estimated to approximate 17% and 41%
respectively.  As  a  result,  US$1.8  million  (equivalent  to  approximately  RMB12.0  million)  and  US$4.2  million  (equivalent  to
approximately RMB27.8 million) were recognized as revenue for the year ended December 31, 2020 in the consolidated statement of
comprehensive income for Study I and Study II respectively, resulting in a contract asset of US$34.8 million (RMB 227.4 million) for
this  agreement  as  of  December  31,  2020  in  the  consolidated  balance  sheets.  As  of  December  31,  2020,  the  upfront  payment  of
US$180 million was received by the Group. The 1st milestone payment of US$20 million was subsequently collected by the Group in
March 2021. As of December 31, 2021, the cumulative percentages complete in the cost-to-cost input method for Study I and Study II
were estimated to approximate 53% and 51% respectively. As a result, US$4.0 million (equivalent to approximately RMB25.6 million)
and US$0.9 million (equivalent to approximately RMB6.0 million) were recognized as revenue for the year ended December 31, 2021 in
the  consolidated  financial  statements  of  comprehensive  loss  for  Study  I  and  Study  II  respectively,  resulting  in  an  addition  of  contract
asset of US$4.9 million (equivalent to approximately RMB31.6 million) for this agreement, and the total contract asset related to this
agreement was US$39.7 million (RMB 253.8 million) as of December 31, 2021.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

B. Out-Licensing and Collabration Arrangements (continued)

Global Strategic Partnership with AbbVie (continued)

In August 2022, the Group and AbbVie entered into an amendment to the original license and collaboration agreement dated September
3, 2020. The Group will be eligible to receive, and AbbVie will pay, up to US$1.295 billion in the development, regulatory, and sales
milestone  payments,  and  the  tiered  royalties  at  rates  from  mid-to-high  single-digit  percentages  on  global  net  sales  outside  of  Greater
China for certain new anti-CD47 antibodies currently in development, or the original milestone payments and tiered royalties for other
licensed products. The Group has the exclusive right to develop and commercialize all licensed products under the agreement in Greater
China. AbbVie discontinued the global Phase 1b study of lemzoparlimab combination therapy with AZA and venetoclax in patients with
MDS and acute myeloid leukemia (AML), and a Phase 1b study of lemzoparlimab in patients with relapsed/refractory multiple myeloma.
As a result of the amendment to the original collaboration arrangement in the second half of 2022, the Group estimated the amount of
consideration  to  which  it  will  be  entitled  to  under  the  amended  agreement  and  determined  the  probability  of  achieving  the  second
milestone payment of US$50 million is lowered. The Group concluded it is not probable that a significant reversal of revenue will not
occur  once  the  uncertainty  associated  with  the  milestone  payment  is  resolved,  the  variable  consideration  of  US$50  million  associated
with the second milestone is excluded from the transaction price at the amendment date. The consideration of US$200 million was re-
allocated to the three performance obligations based on the relative stand-alone selling price at the amendment date. The allocated price
for the grant of lemzoparlimab license, Study I and Study II is US183.0 million, US$8.8 million and US$ 8.2 million, respectively. As of
the  amendment  date,  based  on  the  updated  transaction  price  and  the  progress  of  each  performance  obligation,  the  Group  recorded  a
cumulative  catch-up  adjustment  which  resulted  in  a  reduction  of  revenue  of  US$48.0  million  (equivalent  to  RMB  314.2  million),  a
reversal  of  contract  assets  of  US$39.8  million,  and  a  recognition  of  contract  liabilities  of  US$8.2  million  in  the  second  half  of  2022.
Offsetting this amount, the revenue of US$5.8 million (equivalent to RMB 39.9 million) was recorded for the ongoing Study I and Study
II initial development services for the year ended December 31, 2022. As of December 31, 2022, the cumulative percentages complete in
the cost-to-cost input method for Study I and Study II were estimated to be approximate 84% and 88%, respectively. The accumulated
revenue  recognized  for  Study  I  and  Study  II  was  US$7.4  million  and  US$7.2  million,  respectively,  as  of  December  31,  2022.  As  of
December 31, 2022, the balance of contract assets related to the collaboration arrangement with AbbVie was nil, while the balance of
contract liabilities was US$2.4 million (RMB16.6 million).

Strategic collaboration with Jumpcan

On  November  10,  2021,  the  Group  entered  into  a  strategic  collaboration  agreement  (the  “Jumpcan  Agreement”)  with  Jumpcan
Pharmaceutical  Group  (“Jumpcan”),  a  China  pharmaceutical  company  specialized  in  and  committed  to  pediatric  medicines,  for  the
development, manufacturing and commercialization of I-Mab’s highly differentiated long-acting recombinant human growth hormone,
eftansomatropin alfa (the “TJ101” and “Licensed Product”) in mainland China (the “Territory”).

Under the collaboration agreement, I-Mab will continue to lead the ongoing registrational Phase 3 clinical trial of eftansomatropin alfa in
pediatric growth hormone deficiency (PGHD). The two companies will share costs of manufacturing tech transfer, process optimization
and new formulation development. I-Mab will be the marketing authorization holder (MAH) of the product and supply the product at
agreed cost to Jumpcan. Jumpcan will be responsible for commercializing the product and developing new indications in collaboration
with I-Mab in mainland China. I-Mab will provide clinical, manufacturing and academic support.

According to the terms of the collaboration agreement, Jumpcan will make an upfront payment of RMB 224 million to I-Mab and, upon
achievement of development, registration and sales milestones, certain milestone payments of up to RMB 1.792 billion, making the non-
royalty  payments  a  total  of  up  to  RMB  2.016  billion.  In  addition,  I-Mab  and  Jumpcan  will  share  profits  generated  from
commercialization  of  the  product  in  mainland  China  on  a  50/50  basis,  pursuant  to  which  I-Mab  will  be  entitled  to  receive  tiered  low
double-digit royalties on net sales.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

B. Out-Licensing and Collabration Arrangements (continued)

Strategic collaboration with Jumpcan (continued)

The Group performed assessment and concluded that all the promise identified, including the grant of the license to Jumpcan, Phase III
clinical trial in PGHD and CMC development under the Jumpcan Agreement have been bundled into a single performance obligation.
The  amounts  of  the  transaction  price  allocable  to  this  performance  obligation  are  deferred  until  the  control  of  the  manufactured
commercial drug product has begun to transfer to Jumpcan. For the year ended December 31, 2021, the Group received the upfront fee of
RMB224  million  from  Jumpcan  and  recorded  it  as  contract  liabilities  in  the  consolidated  balance  sheet  as  of  December  31,  2021.
According to the terms of the collaboration agreement, Jumpcan shall undertake to bear 50% proportion of the CMC cost occurred by I-
Mab after the effective date of this agreement. these costs. For the year ended December 31, 2022, the Group received the payment of
RMB22.0 million from Jumpcan related to the cost sharing and recorded it as contract liabilities in the consolidated balance sheet.

Cell Line Collaboration with Ferring

In  May  2022,  the  Group  entered  into  an  amended  and  restated  license  and  sublicense  agreement  and  a  cell  line  and  manufacturing
collaboration agreement (“Cell Line Collaboration Agreement”) with Ferring, under which the Group granted to Ferring an exclusive,
perpetual and transferrable sublicense, with the right to grant further sublicenses to sublicensees, under all of the intellectual properties
licensed to I-Mab by I-Mab’s business partner to research, develop, make, import, use and sell olamkicept as expressed by or produced
by cell lines created by I-Mab’s business partner and its affiliates, in any human indications in the territories other than Greater China and
Korea. The Group also granted to Ferring an exclusive, perpetual and royalty-free license, with right of sublicense to sublicensees, under
the intellectual property owned or controlled by I-Mab which relates to cell lines created by I-Mab’s business partner and its affiliates, for
the  research,  development,  making,  using  or  selling  of  olamkicept,  including  prespecified  patents  and  know-how  and  improvements
thereto.  As  of  December  31,  2022,  Ferring  paid  to  the  Group  the  milestone  payment  as  specified  in  the  Cell  Line  Collaboration
Agreement. This payment was recorded in revenue in the consolidated statements of comprehensive loss for the year ended December
31, 2022. Ferring also agreed to make milestone payments to us, conditioned on the achievement of certain development milestones in
Ferring’s licensed territory.

In May 2022, the Group entered into a supplementary sublicensing agreement to the TJ301 Sublicense Agreement (“TJ301 Supplemental
Sublicense Agreement”) with I-Mab Hangzhou. Pursuant to the TJ301 Supplemental Sublicense Agreement, I-Mab Hong Kong should
pay I-Mab Hangzhou US$2.75 million (equivalent to approximately RMB18.6 million) to reimburse the effort and contribution from I-
Mab  Hangzhou  in  the  development  of  Wuxi  Cell  Line,  which  was  recorded  as  the  reduction  of  revenue  in  the  consolidated  financial
statements of comprehensive loss for the year ended December 31, 2022.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

17. LICENSING AND COLLABORATION ARRANGEMENTS (CONTINUED)

Breakdown of licensing and collaboration revenue

The breakdown of licensing and collaboration revenue was as follows:

Year Ended December 31,

Recognition in the year
Reduction in the year
Revenues from AbbVie
Revenues from other partners

18. OTHER INCOME (EXPENSES), NET

2020
RMB
  1,542,668  
—  
  1,542,668  
—  
  1,542,668  

2021
     RMB

RMB
39,891  
(314,181) 
(274,290) 
24,625  
(249,665) 

2022
     US$(Note 2.5)
5,784
(45,552)
(39,768)
3,570
(36,198)

31,615  
—  
31,615  
8,500  
40,115  

The following table summarizes other income (expenses), net recognized for the years ended December 31, 2020, 2021 and 2022:

Income of incentive payment from depository bank
Fair value change of short-term and other investments
Fair value change of put right liabilities
Net foreign exchange gains (losses)
Subsidy income (3)
Gains on deconsolidation of a subsidiary
Others

Notes

11

10

Year Ended December 31

2020
RMB

2021
RMB

2022

RMB

2,348  
11,288  
3,024  
(22,126) 
11,633  
407,598  
(873) 
412,892  

2,395  
30,360  
16,628  
25,373  
9,216  
—  
(810) 
83,162  

2,821  
(13,549) 
34,260  
(175,391) 
25,470  
—  
(198) 
(126,587)

US$
(Note 2.5)
409
(1,964)
4,967
(25,429)
3,693
—
(29)
(18,353)

(3) For  the  year  ended  December  31,  2020,  subsidy  income  consists  primarily  of  the  government  grant  of  RMB10  million.  The
government grant was granted by the project management office of Shanghai Zhangjiang Science City to support the research and
development activities in the local region. For the year ended December 31, 2021, subsidy income primarily consists of an amount
of  RMB2.9  million  related  to  the  paycheck  protection  program  loan  forgiveness  approved  by  the  U.S.  Small  Business
Administration in April 2021, and an amount of RMB4.5 million recognized in connection with the completion of a project related
to one of the Group’s pipelines. For the year ended December 31, 2022, subsidy income consists primarily of the government grant
of RMB18.9 million. The government grant was granted by the project management office of Shanghai Zhangjiang Science City and
the management committee of Shanghai Free Trade Zone to support the research and development activities in the local region.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

19. NET INCOME (LOSS) PER SHARE

Basic and diluted net income (loss) per share for each of the periods presented are calculated as follows:

Numerator:
Net income (loss) attributable to I-Mab
Net income (loss) attributable to ordinary shareholders
Denominator:
Denominator for basic calculation-weighted average number of common

shares outstanding

Dilutive effect of convertible preferred shares
Dilutive effect of ordinary shares to be issued to Everest
Dilutive effect of convertible promissory notes
Dilutive effect of restricted shares units
Dilutive effect of stock options
Denominator for diluted income (loss) per share calculation
Net income (loss) per share - basic
Net income (loss) per share - diluted

2020
RMB

Year Ended December 31
2022
2021
RMB
RMB

     US$ (Note 2.5)

(in thousands, except for share and per share data)

470,915
470,915  

(2,331,541)
(2,331,541) 

(2,507,317)
(2,507,317) 

(363,526)
(363,526)

4,373,047  
266,458  
865,479  
778,130  
16,789,714  

  134,158,824   174,707,055   189,787,292   189,787,292
—
—  
—
—  
—
—  
—
—  
—
—  
  157,231,652   174,707,055   189,787,292   189,787,292
(1.92)
(1.92)

—  
—  
—  
—  
—  

(13.21) 
(13.21) 

(13.35) 
(13.35) 

3.51  
3.00  

The effects of all outstanding restricted shares, certain stock options and warrants have been excluded from the computation of diluted
loss per share for the years ended December 31, 2021 and 2022 as their effects would be anti-dilutive. The potentially dilutive securities
that have not been included in the calculation of diluted net loss per share as their inclusion would be anti-dilutive are as follows:

Restricted shares
Stock options
Warrants

20. EMPLOYEE BENEFITS

Year Ended December 31

2021
3,150,881  
14,584,833  
648,359  

2022
484,395
2,939,322
—

Full time employees of the Group in the PRC participate in a government mandated defined contribution plan, pursuant to which certain
pension  benefits,  medical  care,  employee  housing  fund  and  other  welfare  benefits  are  provided  to  the  employees.  Chinese  labor
regulations  require  that  the  PRC  subsidiaries  of  the  Group  make  contributions  to  the  government  for  these  benefits  based  on
certain percentage of the employees’ salaries, up to a maximum amount specified by the government. The Group has no legal obligation
for the benefits beyond the contribution made. The total amounts charged to the consolidated statements of comprehensive income (loss)
for  such  employee  benefits  amounted  to  approximately  RMB10,049,  RMB26,426  and  RMB35,332  for  the  years  ended  December  31,
2020, 2021 and 2022, respectively.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

21. COMMITMENTS AND CONTINGENCIES

Contingencies

The Group is a party to or an assignee of license and collaboration agreements that may require it to make future payments relating to
milestone  fees  and  royalties  on  future  sales  of  licensed  products  (see  Note  17).  In  April  2020,  Tracon  issued  a  notice  of  dispute  with
respect to the TJD5 Agreement and the BsAbs Agreement. The disputes relating to the TJD5 Agreement and the BsAbs Agreement are
the  subject  of  a  binding  arbitration  proceeding  under  the  Rules  of  Arbitration  of  the  International  Chamber  of  Commerce  before  an
arbitration tribunal. In April 2023, the Group received the result of the arbitration, which is further discussed in Note 17.

The Group did not have significant long-term obligations, or guarantees as of December 31, 2021 and 2022.

Capital commitments

The  capital  expenditures  related  to  property,  equipment  and  software  contracted  for  as  of  December  31,  2021  and  2022  but  not
recognized in the Group’s consolidated financial statements were RMB24,426 and RMB4,392, respectively.

22. RELATED PARTY BALANCES AND TRANSACTIONS

The table below sets forth the major related parties and their relationships with the Group for the years ended December 31, 2020, 2021
and 2022:

Name of related parties

     Relationship with the Group

CMAB Biopharma (Suzhou) Inc.

Jiangsu Taslydiyi Pharmaceutical Co., Ltd.

I-Mab Biopharma (Hangzhou) Co., Limited

Controlled  by  the  ultimate  controlling  party  of  a  principal
shareholder of the Group before April 30, 2021
Controlled  by  the  ultimate  controlling  party  of  a  principal
shareholder of the Group before December 9, 2021
Subsidiary of the Group before September 15, 2020; Affiliate of the
Group after September 15, 2020

Details of related party balances as of December 31, 2021 and 2022 are as follows:

Prepayments and other receivables

I-Mab Hangzhou

Accruals and other payables

Jiangsu Taslydiyi Pharmaceutical Co., Ltd.
I-Mab Hangzhou

F-73

As of December 31, 

2021
RMB

8,079

RMB

8,231

2022
     US$ (Note 2.5)
1,193

As of December 31, 

2021
RMB

5,092
—

RMB

—
64,782

2022
     US$ (Note 2.5)
—
9,393

    
    
    
    
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

22. RELATED PARTY BALANCES AND TRANSACTIONS (CONTINUED)

Details of related party transactions for the years ended December 31, 2020, 2021 and 2022 are as follows:

Receipt of CRO and CMC services - recognized in research and development expenses

For the year ended December 31, 

CMAB Biopharma (Suzhou) Inc.
Jiangsu Taslydiyi Pharmaceutical Co., Ltd.
I-Mab Hangzhou

Revenue sharing - recognized as deduction of revenue

2020
RMB

681  
2,395  
—  

2021
RMB

—  
2,697  
2,465  

RMB

—  
—  
84,673  

2022
     US$ (Note 2.5)
—
—
12,276

I-Mab Hangzhou (Note 17)

Collection of loan to an affiliate

I-Mab Hangzhou (4)

For the year ended December 31, 

2020
RMB

2021
RMB

—  

—  

RMB
18,583  

2022
     US$ (Note 2.5)
2,694

For the year ended December 31, 

2020
RMB
52,000  

2021
RMB

—

RMB

2022
     US$ (Note 2.5)
—

—  

(4)

In  July  2019  and  July  2020,  I-Mab  Shanghai  provided  an  interest  free  loan  to  I-Mab  Hangzhou  of  RMB2,000  and  RMB50,000
respectively to finance I-Mab Hangzhou’s operation. These loans were repaid in November 2020.

Expenses paid on behalf of an affiliate

I-Mab Hangzhou

Provision of FTE and other services - recognized in other income

I-Mab Hangzhou

Amounts received on behalf of an affiliate

I-Mab Hangzhou

F-74

For the year ended December 31, 

2020
RMB
21,212

2021
RMB
17,649  

RMB

2022
     US$ (Note 2.5)
—

—  

For the year ended December 31, 

2020
RMB

—

2021
RMB
11,691  

RMB

2022
     US$ (Note 2.5)
—

—  

For the year ended December 31, 

2020
RMB

—

2021
RMB

281  

RMB

2022
     US$ (Note 2.5)
—

—  

    
    
    
 
 
 
    
    
    
 
    
    
 
    
    
    
 
    
    
    
 
    
    
    
 
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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

22. RELATED PARTY BALANCES AND TRANSACTIONS (CONTINUED)

Amounts received related to the sublicense agreement

I-Mab Hangzhou (Note 17)

Amounts paid by an affiliate on behalf of the Group

I-Mab Hangzhou

23. CONCENTRATION OF CREDIT RISK

For the year ended December 31, 

2020
RMB

—

2021
RMB
19,102  

RMB

2022
     US$ (Note 2.5)
—

—  

For the year ended December 31, 

2020

RMB

—

2021

RMB
25,448     

2022

RMB

837     

US$ (Note 2.5)
121

Financial instruments that are potentially subject to significant concentration of credit risk consist of cash and cash equivalents, restricted
cash,  short-term  investments,  accounts  receivable,  contract  assets,  and  other  receivables.  The  carrying  amounts  of  cash  and  cash
equivalents, short-term investments and contract assets represent the maximum amount of loss due to credit risk. As of December 31,
2021 and 2022, all of the Group’s cash and cash equivalents, restricted cash and short-term investments were held by major financial
institutions located in the PRC and international financial institutions outside of the PRC which management believes are of high credit
quality  and  continually  monitors  the  credit  worthiness  of  these  financial  institutions.  With  respect  to  the  accounts  receivable,  contract
assets  and  other  receivables,  the  Group  performs  on-going  credit  evaluations  of  the  financial  condition  of  its  customers  and
counterparties.

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I-MAB

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(All amounts in thousands, except for share and per share data, unless otherwise noted)

24. RESTRICTED NET ASSETS

The Group’s ability to pay dividends may depend on the Group receiving distributions of funds from its PRC subsidiary. Relevant PRC
statutory laws and regulations permit payments of dividends by the Group’s PRC subsidiary only out of its retained earnings, if any, as
determined  in  accordance  with  PRC  accounting  standards  and  regulations.  The  results  of  operations  reflected  in  the  consolidated
financial  statements  prepared  in  accordance  with  U.S.  GAAP  differ  from  those  reflected  in  the  statutory  financial  statements  of  the
Group’s PRC subsidiary.

In accordance with the Company law of the PRC, a domestic enterprise is required to provide statutory reserves of at least 10% of its
annual  after-tax  profit  until  such  reserve  has  reached  50%  of  its  respective  registered  capital  based  on  the  enterprise’s  PRC  statutory
accounts. A domestic enterprise is also required to provide discretionary surplus reserve, at the discretion of the Board of Directors, from
the  profits  determined  in  accordance  with  the  enterprise’s  PRC  statutory  accounts.  The  aforementioned  reserves  can  only  be  used  for
specific  purposes  and  are  not  distributable  as  cash  dividends.  The  Group’s  PRC  subsidiary  was  established  as  domestic  invested
enterprise and therefore is subject to the above mentioned restrictions on distributable profits.

For the years ended December 31, 2020, 2021 and 2022, no appropriation to statutory reserves was made because the PRC subsidiary
had substantial losses during such periods.

As a result of these PRC laws and regulations subject to the limit discussed above that require annual appropriations of 10% of after-tax
income to be set aside, prior to payment of dividends, as general reserve fund, the Group’s PRC subsidiary is restricted in their ability to
transfer a portion of their net assets to the Group.

Foreign  exchange  and  other  regulations  in  the  PRC  further  restrict  the  Company’s  PRC  subsidiaries  from  transferring  funds  to  the
Company in the form of dividends, loans and advances.

As of December 31, 2022, the net asset base for purposes of calculating the proportionate share of restricted net assets of consolidated
subsidiaries  should  be  zero,  while  the  Group  has  a  consolidated  shareholders’  equity.  Therefore,  as  the  restricted  net  assets  of
consolidated subsidiaries do not exceed 25% of consolidated net assets as of the most recent fiscal year end, the Group is not required to
provide parent company financial information.

F-76

THE SYMBOL “[REDACTED]” DENOTES PLACES WHERE CERTAIN INFORMATION HAS BEEN EXCLUDED FROM
THE EXHIBIT BECAUSE IT IS BOTH (1) NOT MATERIAL, AND (2) THE TYPE THAT THE REGISTRANT TREATS AS
PRIVATE OR CONFIDENTIAL.

Exhibit 4.22

August 15, 2022

I-Mab Biopharma Co., Ltd.
天境生物科技(上海)有限公司
Suite 802, West Tower, OmniVision
88 Shangke Road, Pudong District
Shanghai, 201210
P.R. China
Attn: Legal

I-Mab Biopharma US Limited
Suite 516, 2275 Research Boulevard,
Rockville, Maryland, 20850
United States
Attention: Claire Xu, Site Head and US Clinical R&D Head

RE: Amendment No.1 to License and Collaboration Agreement

AbbVie Global Enterprises Ltd. (as assignee from AbbVie Ireland Unlimited Company) (“AbbVie”) and I-

Mab Biopharma Co., Ltd. (“I-Mab Shanghai”, 天境生物科技(上海)有限公司) and I-Mab Biopharma US
Limited (“I-Mab US” and collectively with I-Mab Shanghai, “I-Mab”) are parties to that certain License and
Collaboration Agreement entered into September 3, 2020 (the “Agreement”).  Capitalized terms used but not 
defined in this letter have the respective meanings set forth in the Agreement.  Each of AbbVie and I-Mab may be 
referred to in this letter individually as a “Party” and collectively as the “Parties”.

The Parties have agreed to amend (a) the anti-shelving provision under the Agreement and (b) certain 

amounts payable under the Agreement with respect to any Other Licensed Product (as defined below) and in each 
case ((a) and (b)) desire to memorialize such agreement in this letter.  In consideration of the mutual 
representations, warranties and covenants contained in this letter, and for other good and valuable consideration, 
the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows under the terms of this 
letter agreement and amendment to the Agreement (“Amendment No.1”). This Amendment No.1 is entered into
and shall become effective on the date of the last signature (the “Effective Date”).  

Cessation of Development and Commercialization

1.

Section 2.6.1 of the Agreement is hereby amended by deleting the word “clinical” from “material clinical
Development”.

Financials for Other Licensed Product

2.

The following new definition is hereby added to Article 1 of the Agreement:

a.

“Other Licensed Product” means any Licensed Product that (a) does not contain the
[REDACTED], and (b) contains a Licensed Compound that is [REDACTED] as the sole Licensed
Compound.

3.

Section 10.3.1 and Section 10.4.1 of the Agreement are hereby amended as set forth in Exhibit A of this
letter.

General Provisions

4.

5.

6.

7.

Exhibit B sets forth the public disclosures agreed to by the Parties with respect to this letter.  Neither Party 
shall make any other public disclosure regarding this letter without complying with its obligations under 
Section 12.5 of the Agreement. 

Each Party represents and warrants to the other Party, as of the Effective Date, as follows:  (a) it is duly 
organized and validly existing under Applicable Laws of its jurisdiction of incorporation; (b) it has full 
corporate power and authority and has taken all corporate action necessary to enter into and perform this 
letter; (c) the execution and performance by it of its obligations hereunder will not constitute a breach of, 
or conflict with, its organizational documents or any other agreement by which it is bound or requirement 
of Applicable Laws; and (d) this letter is its legal, valid and binding obligation, enforceable in accordance 
with the terms and conditions hereof (subject to Applicable Laws of bankruptcy and moratorium).

This letter shall be governed under, and subject to, the terms of Article 12 (Confidentiality and Non-
Disclosure) (and the terms of this letter shall be the Confidential Information of both Parties) and Article
16 (Miscellaneous) (other than Section 16.17) of the Agreement as if such terms were expressly set forth
in this letter.

Except as expressly amended hereby, all of the terms and conditions of the Agreement shall remain in full
force and effect. This Amendment No.1, together with the Agreement and the exhibits and schedules
hereto and thereto, constitute the full and entire understanding and agreement between the Parties with
regard to the subjects hereof. This Amendment No.1 may be executed in any number of counterparts, each
of which is enforceable against the parties that execute such counterparts, and all of which together
constitute one instrument.

[Signature page follows.]

2

If this letter accurately sets forth our understanding, kindly execute this letter and return it to the undersigned.

Accepted and agreed:

I-Mab Biopharma Co., Ltd.

By:

/s/ Jingwu Zhang Zang
Jingwu Zhang Zang
Legal Representative

Date: August 15, 2022

I-Mab Biopharma US Limited

By:

/s/ Jingwu Zhang Zang
Jingwu Zhang Zang
Director
Date: August 15, 2022

Best regards,

AbbVie Global Enterprises Ltd.

By:

/s/ Jonathan C. Clipper
Jonathan C. Clipper

Date: August 15, 2022

3

Exhibit A
Amendments to Certain Financial Terms

1.

Section 10.3.1 of the Agreement is hereby amended and replaced in its entirety as follows:

10.3.1 Development, Regulatory and First Commercial Sale Milestones. Subject to the
terms  and  conditions  of  this  Agreement,  with  respect  to  each  of  the  following  Milestone
Events,  AbbVie  shall  pay  to  I-Mab  a  one  (1)-time  non-refundable  and  non-creditable
Milestone Payment within [REDACTED] after such Milestone Event is first achieved by or
on behalf of AbbVie or its Affiliates or Sublicensees during the Term as follows:

Milestone Event

Milestone Payment

Fulfillment of the success criteria (as
set forth in Schedule 10.3.1(a)) in
conjunction with the AML/MDS
monotherapy Phase 1 dose escalation
study identified as “study 2” in the
Initial Development Plan as of the
Execution Date at the 10mg/kg dose
level

Twenty Million Dollars
($20,000,000)*

* Milestone Payment for Milestone Event 1
previously paid by AbbVie.

1.

2.

3.

4.

5.

6.

7.

8.

9.

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

10.

[REDACTED]

11.

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

For clarity, each of the Milestone Payments set forth in this Section 10.3.1 shall be payable
only  once  upon  the  first  achievement  of  the  corresponding  Milestone  Event,  and  any
subsequent  or  repeated  achievement  of  the  same  Milestone  Event,  whether  by  the  same
Licensed Product or by a Licensed Product different from the first Licensed Product used in
the same Milestone Event, shall not result in any additional payment obligation for AbbVie
under this Section 10.3.1.

[REDACTED]

2.

Section 10.4.1 of the Agreement is hereby amended and replaced in its entirety as follows:

10.4.1 Royalty Rates.  Subject to the terms and conditions of this Agreement, AbbVie shall
pay to I-Mab, with respect to each Licensed Product, a tiered royalty on Net Sales of such
Licensed  Product  by  AbbVie  or  any  of  its  Affiliates  or  Sublicensees  in  the  AbbVie
Territory  in  each  Calendar  Year  during  the  Royalty  Term  with  respect  to  such  Licensed
Product and each country or jurisdiction in the AbbVie Territory, at the following rates:

Aggregate Net Sales in a Calendar Year for
such Licensed Product

Royalty Rate

For that portion of aggregate Net Sales of such
Licensed Product in the AbbVie Territory in a
Calendar Year less than [REDACTED]

[REDACTED]

For that portion of aggregate Net Sales of such
Licensed Product in the AbbVie Territory in a
Calendar Year equal to or greater than
[REDACTED] but less than [REDACTED]

For that portion of aggregate Net Sales of such
Licensed Product in the AbbVie Territory in a
Calendar Year equal to or greater than
[REDACTED] but less than [REDACTED]

For that portion of aggregate Net Sales of such
Licensed Product in the AbbVie Territory in a
Calendar Year equal to or greater than
[REDACTED] but less than [REDACTED]

For that portion of aggregate Net Sales of such
Licensed Product in the AbbVie Territory in a
Calendar Year equal to or greater than
[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

[REDACTED]

With  respect  to  each  Licensed  Product  in  each  country  (or  jurisdiction)  in  the  AbbVie
Territory, from and after the expiration of the Royalty Term for such Licensed Product in
such  country  or  jurisdiction,  Net  Sales  of  such  Licensed  Product  in  such  country  or
jurisdiction  shall  be  excluded  for  purposes  of  calculating  the  Net  Sales  thresholds  and
ceilings set forth in this Section 10.4.1. For purposes of this Section 10.4.1, with respect to
a  particular  country,  Net  Sales  shall  include  sales  without  the  receipt  of  Regulatory
Approval for a Licensed Product in such country, such as so-called “treatment IND sales”
or “named patient sales” if such sales are the primary means of Commercialization of such
Licensed Product in such country and Regulatory Approval for such Licensed Product in
such country will not be sought.

Exhibit B
Agreed Public Disclosures

I-Mab Provides Updates on Its Global Strategic Partnership with AbbVie

I-Mab (the “Company”) (Nasdaq: IMAB) today announced that the Company and AbbVie Global
Enterprises  Ltd.  (as  assignee  of  AbbVie  Ireland  Unlimited  Company)  (“AbbVie”)  have  entered
into  an  amendment  to  the  original  license  and  collaboration  agreement  dated  September  3,  2020
among I-Mab Biopharma (Shanghai) Co., Ltd. and I-Mab Biopharma US Limited, each a wholly-
owned subsidiary of the Company, and AbbVie (as amended, the “Agreement”).

The parties will continue to collaborate on the global development of anti-CD47 antibody therapy
under  the  Agreement.  The  Company  will  be  eligible  to  receive,  and  AbbVie  will  pay,  up  to
US$1.295  billion  in  the  development,  regulatory  and  sales  milestone  payments,  and  the  tiered
royalties at rates from mid-to-high single digit percentages on global net sales outside of Greater
China  for  certain  new  anti-CD47  antibodies  currently  in  development,  or  the  original  milestone
payments and tiered royalties previously disclosed in the Company’s Form 20-F for the fiscal year
2021  for  other  licensed  products.  The  Company  has  the  exclusive  right  to  develop  and
commercialize all licensed products under the Agreement in Greater China.

AbbVie  will  discontinue  the  global  Phase  1b  study  of  lemzoparlimab  combination  therapy  with
azacitidine  (“AZA”)  and  venetoclax,  in  patients  with  myelodysplastic  syndrome  (“MDS”)  and
acute myelocytic leukemia (“AML”). This decision was not based on any specific or unexpected
safety concerns.

The Company continues its commitment on lemzoparlimab development with a near-term focus on
the initiation of a Phase 3 clinical trial in patients with MDS in China, which is supported by the
safety and efficacy data from its Phase 2 study of combination therapy of lemzoparlimab and AZA
in patients with higher risk MDS. The detailed data will be presented in a proffered paper at the
European Society for Medical Oncology (ESMO) Congress in September 2022. To date, Phase 1
and  Phase  2  clinical  studies  of  lemzoparlimab  in  the  U.S.  and  China  with  nearly  200  patients
enrolled have shown a good safety profile without the need for a priming dosing regimen.

The Company has a strong cash position (US$671 million in cash, cash equivalents and short-term
investments as of December 31, 2021) to support the ongoing and planned clinical development of
lemzoparlimab, in addition to other critical late-stage clinical assets.

Exhibit 4.23

English translation

I-Mab Biopharma (Hangzhou) Co., Ltd.

_________________________________________________________________

Investment Agreement
_________________________________________________________________

July 16, 2022

Table of Contents

Definitions
This Capital Increase
Closing Conditions
Closing and Related Matters
Representations and Warranties
Transitional Period Covenants
Other Agreements and Covenants
Liability for Breach of Contract; Indemnification
Effectiveness, Amendment and Termination of the Agreement

Article 1
Article 2
Article 3
Article 4
Article 5
Article 6
Article 7
Article 8
Article 9
Article 10 Miscellaneous
Schedule 1: Amended Articles of Association
Schedule 2: Shareholding Structures of the Company
Schedule 3: Closing Certificate
Schedule 4: List of Key Employees
Schedule 5: Disclosure Schedules

i

4
7
7
9
13
20
22
23
24
25

INVESTMENT AGREEMENT

This  INVESTMENT  AGREEMENT  (this  “Agreement”)  is  entered  into  in  the  PRC  on  July  16,  2022  (the  “Signing  Date”)  by  and
among the following parties:

1.

2.

3.

4.

5.

6.

7.

8.

9.

I-Mab Biopharma (Hangzhou) Co., Ltd., a limited liability company legally established and existing in accordance with the
PRC laws, whose unified social credit code is 91330100MA2GNANB49 (the “Company”);

I-Mab Biopharma Co., Ltd.,  a  limited  liability  company  legally  established  and  existing  in  accordance  with  the  PRC  laws,
whose unified social credit code is 91310115MA1K3G0E1F (“I-Mab Shanghai”);

I-MAB BIOPHARMA HONGKONG LIMITED, a company limited by law established in accordance with the laws of the
Hong Kong Special Administrative Region of the PRC, whose registration number is 2400410 (“I-Mab HK”);

Pingtan  Wenzhou  Ruihe  Investment  Partnership  (Limited  Partnership)  ( 平潭文周瑞和投资合伙企业( 有限合伙)),  a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91350128MA8TQEYH30 ( “Wenzhou Ruihe”);

Huzhou Jingyun Equity Investment Partnership (Limited Partnership) (湖州静耘股权投资合伙企业(有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330501MA2JL1G07W ( “Huzhou Jingyun”);

Pingtan Wenzhou Ruizhi Investment Partnership (Limited Partnership) ( 平潭文周瑞致投资合伙企业( 有限合伙)), a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91350128MA8TQFP85C ( “Wenzhou Ruizhi”);

Jiaxing Hongtong Investment Partnership (Limited Partnership) ( 嘉兴鸿桐创业投资合伙企业( 有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330402MA7GF15T8Q ( “Jiaxing Hongtong”);

Qingdao Zhongou Industry Investment Partnership (Limited Partnership) (青岛中欧创新产业投资基金合伙企业(有限合
伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit code is
91370202MA3WNGTEXK ( “Qingdao Zhongou”);

Qingdao Haiyang Innovation Investment Co., Ltd. (青岛海洋创新产业投资基金有限公司), a limited liability company
legally established and existing in accordance with the PRC laws, whose unified social credit code is 91370282MA3N5L323R (
“Qingdao Haiyang Innovation”);

10.

Ningbo Yijing Management Partnership (Limited Partnership) (宁波市伊境企业管理合伙企业(有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330205MA7JC3H09J ( “Ningbo Yijing”);

1

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

Ningbo Hangjing Management Partnership (Limited Partnership) (宁波市杭境企业管理合伙企业(有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330205MA7HXY278M ( “Ningbo Yijing”);

Ningbo Zhengjing Management Partnership (Limited Partnership) (宁波市正境企业管理合伙企业(有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330205MA7GQY2K5F  (  “Ningbo  Zhengjing”,  together  with  Ningbo  Zhengjing,  Wenzhou  Ruihe,  Huzhou  Jingyun,
Wenzhou  Ruizhi,  Jixing  Hongtong,  Qingdao  Zhongou,  Qingdao  Haiyang  Innovation,  Ningbo  Yijing,  Ningbo  Hangjing,  the
“Investors”); (for the avoidance of doubt, Investors does not include series A round investors)

Lili Qian, a Chinese citizen, whose ID number is ***;

Zhengsong Zhang, a Chinese citizen, whose ID number is ***;

Yunfei Zhang, a Chinese citizen, whose ID number is ***;

Lihong Lou, a Chinese citizen, whose ID number is ***;

Kai Zhou, a Chinese citizen, whose ID number is ***;

Fang Yin, a Chinese citizen, whose ID number is *** (together with Lili Qian, Zhengsong Zhang, Yunfei Zhang, Lihong Lou
and Kai Zhou, collectively referred to as the “Management”);

Hangzhou  Yijing  Biotech  Partnership  (Limited  Partnership)  ( 杭 州 伊 境 生 物 科 技 合 伙 企 业 ( 有 限 合 伙 )),  a  limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330100MA2HY0AEXX (“Hangzhou Yijing”); and

Hangzhou  Lanjing  Biotech  Partnership  (Limited  Partnership)  ( 杭 州 阑 境 生 物 科 技 合 伙 企 业 ( 有 限 合 伙 )),  a  limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330100MA2HY07T3Q  (“Hangzhou  Lanjing”;  together  with  I-Mab  HK,  the  Series  A  Round  Investors,  and  Hangzhou
Yijing, collectively referred to as the “Existing Shareholders”).

The above parties are hereinafter collectively referred to as the “Parties”. When any party hereto is referred to as a “Party”, the other
parties hereto will be referred to as the “Other Parties”.

2

WHEREAS:

1.

2.

3.

The  Company  is  a  limited  liability  company  legally  established  and  existing  in  accordance  with  PRC  laws,  which  was
established  on  26  June,  2019.  The  Company’s  unified  social  credit  code  is  91330100MA2GNANB49,  its  current  registered
capital is USD 30 million, and its business scope is: technology development, technology services, technology consulting, and
transfer  of  results:  biotechnology,  pharmaceutical  technology  (with  respect  to  the  above,  except  for  the  development  and
application  of  human  stem  cells,  gene  diagnosis  and  treatment  technology);  production:  drugs;  drugs,  pharmaceutical
intermediates, Category I medical device wholesale and import and export business (except for those subject to special access
control regulations stipulated by the state).

As of the Signing Date of this Agreement, I-Mab HK holds 45% of the equity in the Company, represented by the Company’s
registered capital of USD 13.50 million, of which the paid-in registered capital is USD 13.50 million. I-Mab HK is a wholly
owned Subsidiary of I-Mab 天境生物 (NASDAQ: IMAB; hereinafter referred to as “I-Mab”).

As of the Signing Date of this Agreement, the Series A Round Investors hold a total of 40% of the Company’s equity, of which
Fushi Capital holds 8.33% of the Company’s equity, corresponding to USD 2.5 million in registered capital of the Company, and
a paid-in capital of USD 2.5 million; Heda Investment holds 6.67% of the Company’s equity, corresponding to USD 2 million in
registered capital of the Company, and a paid-in capital of USD 2 million; Tsingsong Shenzhen holds 5.52% of the Company’s
equity, corresponding to USD 1.655 million in registered capital of the Company, and a paid-in capital of USD 1.655 million;
Ronghui Derun holds 3.33% of the Company’s equity, corresponding to USD 1 million in registered capital of the Company,
and  a  paid-in  capital  of  USD  1  million;  Tsingsong  Nanjing  holds  2.82%  of  the  Company’s  equity,  corresponding  to  USD
845,000  in  registered  capital  of  the  Company,  and  a  paid-in  capital  of  USD  845,000;  Guochuang  Junyao  holds  2.33%  of  the
Company’s equity, corresponding to USD 700,000 in registered capital of the Company, and a paid-in capital of USD 700,000;
Hanhai Qianyuan holds 2.33% of the Company’s equity, corresponding to USD 700,000 in registered capital of the Company,
and  a  paid-in  capital  of  USD  700,000;  Yanchuang  Yangming  holds  1.07%  of  the  Company’s  equity,  corresponding  to  USD
320,000 in registered capital of the Company, and a paid-in capital of USD 320,000; Haibang Yigu holds 1% of the Company’s
equity,  corresponding  to  USD  300,000  in  registered  capital  of  the  Company,  and  a  paid-in  capital  of  USD  300,000;  Jialiang
Shan  holds  1%  of  the  Company’s  equity,  corresponding  to  USD  300,000  in  registered  capital  of  the  Company,  and  a  paid-in
capital of USD 300,000; Silu Fund holds 1% of the Company’s equity, corresponding to USD 300,000 in registered capital of
the Company, and a paid-in capital of USD 300,000; Yanyuan Dongfang holds 0.93% of the Company’s equity, corresponding
to USD 280,000 in registered capital of the Company, and a paid-in capital of USD 280,000; Rongshun Yanyuan holds 0.83% of
the  Company’s  equity,  corresponding  to  USD  250,000  in  registered  capital  of  the  Company,  and  a  paid-in  capital  of  USD
250,000; Yanyuan Innovation holds 0.83% of the Company’s equity, corresponding to USD 250,000 in registered capital of the
Company, and a paid-in capital of USD 250,000; Yanyuan Chanrong holds 0.67% of the Company’s equity, corresponding to
USD  200,000  in  registered  capital  of  the  Company,  and  a  paid-in  capital  of  USD  200,000;  Viva  Biotech  holds  0.67%  of  the
Company’s equity, corresponding to USD 200,000 in registered capital of the Company, and a paid-in capital of USD 200,000;
Huatian Enterprise Management holds 0.42% of the Company’s equity, corresponding to USD 125,000 in registered capital of
the Company, and a paid-in capital of USD 125,000; Qingdao Xinneng holds 0.25% of the Company’s equity, corresponding to
USD 75,000 in registered capital of the Company, and a paid-in capital of USD 75,000.

3

4.

5.

6.

As  of  the  date  of  signing  of  this  Agreement,  Hangzhou  Yijing  holds  10%  of  the  Company’s  equity,  corresponding  to  USD  3
million in registered capital of the Company, and a paid-in capital of USD 750,000. Hangzhou Yijing is the Management Holdco
of  the  Company,  and  the  Executive  Affairs  Partner  is  Lili  Qian.  Hangzhou  Lanjing  holds  5%  of  the  Company’s  equity,
corresponding to USD 1.5 million in registered capital of the Company, and a paid-in capital of USD 0. Hangzhou Lanjing is the
ESOP Holdco of the Company, and the Executive Affairs Partner is Lili Qian.

The Investors intend to invest a total of RMB 292.43 million into the company through capital increase and share expansion to
subscribe  for  new  registered  capital  of  the  Company  totaling  to  USD  3.445758  million  (“New  Registered  Capital”)(“This
Capital Increase”).

the  Parties  will  also  sign  a  Shareholders  Agreement  (the  “Shareholders  Agreement”)  on  or  before  Closing  Date  to  further
provide for the rights and obligations of the shareholders of the Company after the Closing Date.

THEREFORE, the Parties have entered into the following agreement through negotiation:

Article 1

Definitions

1.1

Definitions. Definitions The following terms shall have the following meanings when used in this Agreement:

Affiliate

     With respect to a Party, refers to any enterprise that controls or is controlled by such Party, or
is  under  common  control  by  the  same  entity  with  such  Party.  “Control”  means  directly  or
indirectly  owning  more  than  fifty  percent  (50%)  of  equity,  voting  rights,  or  directly  or
indirectly  owning  more  than  fifty  percent  (50%)  of  any  other  equivalent  assets  of  the
enterprise, or other power or right that can independently determine the management of the
enterprise. “Entities” may include but are not limited to individuals, partnerships, companies
and other legal entities.

Senior Officers

Refer to general manager, deputy general manager, financial controller and other VP or above
level officers.

Working Day

Refers to any day except Saturdays, Sundays or Chinese legal holidays.

Qualified IPO

The  public  offering  of  the  Company’s  shares  on  the  China  Stock  Exchange’s  Science  and
Technology  Board,  Main  Board,  Small  and  Medium-Sized  Enterprise  Board,  Growth
Enterprise  Board,  or  Hong  Kong  Stock  Exchange,  U.S.  Stock  Exchange,  or  other  stock
exchanges  approved  by  the  Shareholders  of  the  Company  in  accordance  with  provisions  of
the Shareholders Agreement.

4

Transaction Documents

Person

MOFCOM

Refer to this Agreement, the Shareholders Agreement, the Amended and Restated Articles of
Association  of  the  Company  reflecting This Capital Increase  (referred  to  as  the  “Amended
Articles  of  Association”),  and  any  other  agreement  or  document  in  connection  with  the
transactions  contemplated  hereunder  which  is  entered  into  pursuant  to  any  of  the  foregoing
documents.

Refers  to  any  natural  person,  legal  person,  partnership,  limited  liability  company,  company
limited by shares, association, trust, unincorporated organization, or any other legal entity of
any nature established in accordance with any Applicable Law, or any Government Agency.

Refers to the Ministry of Commerce of China and its counterparts at all levels that exercise
similar powers.

Market Regulation Bureau

Refers to the PRC’s State Administration for Market Regulation and its local counterparts that
exercise similar powers at all levels.

Applicable Law

Subsidiary

With  respect  to  any  Person,  refers  to  any  public,  valid  and  applicable  treaties,  laws,
administrative regulations, local regulations, rules, decisions, orders, judicial interpretations,
judgments, rulings, arbitration awards or other normative documents that is applicable to that
Person or binding on that Person or any of its assets.

With respect to any Person, refers to any legal person, partnership, limited liability company,
company  limited  by  shares,  association,  trust,  or  other  entity  in  which  the  Person  (alone  or
through  or  in  collaboration  with  any  other  Person)  directly  or  indirectly  owns  securities  or
other  interests  in  it,  so  that  the  Person  generally  has  more  than  fifty  percent  (50%)  of  the
voting rights in the election of the board of directors or other similar decision-making bodies,
or in which the Person is given the right to control by other means.

I-Mab Shanghai

I-Mab Biopharma Co., Ltd.

Beijing Sanjing

Sanjing (Beijing) Biotechnology Co., Ltd.

I-Mab Tianjin

I-Mab Bio-tech (Tianjin) Co., Ltd.

Series  A  Round  Investment
Agreement

On September 15, 2020, the Existing Shareholders, the Management and the Company except
for Qingdao Xinneng entered into that certain Equity Transfer and Investment Agreement.

5

Series A Round Investors

Refers to the entities listed in row #2 to row #19 in Schedule 2 attached hereto.

the Management

Lili Qian, a Chinese citizen, whose ID number is ***; Zhengsong Zhang, a Chinese citizen,
whose ID number is ***; Yunfei Zhang, a Chinese citizen, whose ID number is ***; Lihong
Lou,  a  Chinese  citizen,  whose  ID  number  is  ***;  Kai  Zhou,  a  Chinese  citizen,  whose  ID
number is ***; Fang Yin, a Chinese citizen, whose ID number is ***.

Management Holdco

Refers to the entity listed in row #20 in Schedule 2 attached hereto.

ESOP Holdco

Refers to the entity listed in row #21 in Schedule 2 attached hereto.

Existing Shareholders

Intellectual Property

OXIF

A3

T6

L1A3

Material Adverse Change

Refers  to  I-Mab  HK,  the  Series  A  Round  Investors,  the  Management,  ESOP  Holdco  and
Management Holdco.
Refers  to  patents,  trademarks,  service  marks,  registered  designs,  domain  names,  utility
models, copyrights, inventions, confidential information, trade secrets, proprietary production
processes and equipment, brand names, database rights, trade names, or a right similar to any
of  the  above,  and  the  interest  of  any  of  the  above  (whether  registered  or  unregistered,  and
including the application for the authorization of the above items and the right to apply for
any of the above items anywhere in the world).

Refer  to  the  OX40-IFNɑ  bispecific  antibody  fusion  protein  introduced  by  the  Company  in
December 2020.

Refers  to  the  Target  Pipeline  TJA3  listed  in  Schedule  1  of  the  Series  A  Round  Investment
Agreement.

Refers  to  the  Target  Pipeline  TJT6  listed  in  Schedule  1  to  the  Series  A  Round  Investment
Agreement.

Refers to the Target Pipeline TJL1A3 listed in Schedule 1 of the Series A Round Investment
Agreement.

Refers to any material adverse impact or change that has caused a significant adverse effect
on  the  Company’s  Target  Pipelines,  business,  management,  financial  condition,  Intellectual
Property,  debt,  governmental  approval,  or  qualifications  (but  in  each  case  does  not  include
any such material adverse impact or change that has been remedied or corrected); in case the
Company incurs or is reasonable expected to incur a loss of RMB 5 million or more, it shall
be deemed as a Material Adverse Change.

6

Government agency

Refers to any government or its affiliates with jurisdiction, any department or agency of any
government  or  its  affiliates,  any  legislative  body,  court  or  arbitral  tribunal,  and  any  stock
exchange regulatory agency.

PRC

Greater China

Force Majeure Event

Refers  to  the  People’s  Republic  of  China.  For  the  purpose  of  this  Agreement,  it  does  not
include  the  Hong  Kong  Special  Administrative  Region,  Macau  Special  Administrative
Region and Taiwan.

Refers to the People’s Republic of China. For the purposes of this Agreement, it includes the
Hong  Kong  Special  Administrative  Region,  Macau  Special  Administrative  Region  and
Taiwan.

Refers  to  any  objective  event  or  circumstance  that  is  unforeseeable,  inevitable  and
unavoidable,  including  without  limitation  earthquake,  typhoon,  flood,  fire  or  other  natural
disasters, strike, pandemic (including COVID-19), riot, war. For the avoidance of doubt, any
change  of  laws,  regulations,  policies,  government  orders  of  any  national,  regional  or  local
Government  Agency  that  is  unforeseeable  on  the  Signing  Date  hereof  shall  be  deemed  as
Force Majeure.

2.1

2.2

2.3

3.1

Article 2

This Capital Increase

On the Signing Date of this Agreement, the Company’s registered capital is USD 30 million, and the paid-in registered capital is
USD 26.25 million. The amount of registered capital respectively subscribed by current the shareholders of the Company and
their respective shareholding percentage in the Company are reflected in Schedule 2.

The Investors agree to subscribe for the New Registered Capital of the Company of USD 3.445758 million at a price of RMB
292.43 million on the Closing Date in order to acquire 5.00% equity in the Company after This Capital Increase, of which USD
3.445758 million is credited to the registered capital of the Company and the remaining USD 4.2497683 million is credited to
the capital reserve of the Company in accordance with the terms and conditions agreed herein.

The  Existing  Shareholders  agree  to  This  Capital  Increase  and  agree  to  waive  their  Pre-emptive  Rights  to  subscribe  to  This
Capital Increase in accordance with the articles of association, Shareholders Agreement or other agreements between Existing
Shareholders currently in force.

Article 3

Closing Conditions

Conditions Precedent. The obligation of the Investors to complete its obligation to subscribe for the New Registered Capital
and  to  pay  the  consideration  of  their  investments  (“Closing”)  shall  be  subject  to  the  following  conditions  (each  of  which  is
referred to as a “Condition Precedent”) being satisfied or waived in writing by the Investors on or prior to the Closing Date:

7

(1)

(2)

(3)

(4)

(5)

(6)

(7)

The Investors have completed the business, legal, and financial due diligence on the Company;

The representations and warranties made by the Company herein are true, accurate, complete and not misleading in all
material respects on the Signing Date and the Closing Date, there is no Material Adverse Change in the Company, and
the Company shall have delivered a Closing Certificate to the Investors in the form and substance as attached hereto as
Schedule 3;

Except  the  relevant  Market  Regulation  Bureau  Registration  (as  defined  below),  tax  registration,  MOFCOM  foreign
invested companies’ information reporting and change of foreign exchange registration, the Company has obtained and
completed  all  necessary  authorizations,  consents  and  approvals  required  to  be  obtained  by  the  Company  for  the
execution, delivery and performance of the Transaction Documents and the transactions contemplated thereunder;

This Agreement has been duly executed and delivered by the Parties, has become effective, and remains fully effective
on the Closing Date;

A Shareholders Agreement satisfactory to the Investors has been duly executed and delivered by the Parties, and shall
take effect on and from the Closing Date;

The  Parties  shall  have  duly  executed  and  delivered  other  Transaction  Documents  (if  any)  which,  according  to  terms
thereof, shall be executed on or prior to the Closing Date;

The  Investors  have  obtained  all  necessary  internal  approvals  and  authorizations  for  the  purpose  of  signing  this
Agreement  and  other  Transaction  Documents  and  completing  the  transactions  and  other  related  matters  under  this
Agreement and other Transaction Documents.

3.2

Long-Stop  Date.  All  Parties  shall  exert  their  best  efforts  to  ensure  that  all  Conditions  Precedent  be  satisfied  no  later  than
September 30, 2022. If any of the Conditions Precedent is not met within such time limit and is not waived by the Investors in
writing, any Party has the right to terminate this Agreement by giving a written notice to the Other Parties. The termination of
this Agreement shall be effective on and from the date of such written notice of termination. Notwithstanding the foregoing, the
Party who bears the main responsibility or fault to which the failure of satisfaction of any Condition Precedent within the above-
mentioned deadline is attributable shall not have the right to terminate this Agreement in accordance with the provisions of this
Article  3.2.  At  the  Closing,  if  any  of  the  Conditions  Precedent  are  waived  by  the  Investors  in  writing,  unless  expressly  and
permanently waived by Investors, such Condition Precedent shall automatically become post-Closing obligations under Article
4.3 of this Agreement, and such obligations shall be fulfilled within the time limit otherwise agreed in writing by the Investors.

8

Article 4

Closing and Related Matters

4.1

4.2

Time  of  Closing.  Closing  shall  be  made  (1)  on  the  date  on  which  the  Conditions  Precedent  set  forth  in  Article  3.1  of  this
Agreement (except for those which by their nature must be achieved on such Closing Date) are fully achieved or waived by the
Investors  in  writing,  and  (2)  within  ten  (10)  Working  Days  (the  “Closing  Date”)  after  the  date  that  Wenzhou  Ruihe  and
Wenzhou  Ruizhi  shall  complete  the  private  fund  filing  (“Fund  Filing”)  with  the  Asset  Management  Association  of  China
(whichever is later).

Closing. The Parties agree that the Investors shall remit the investment amount due from its investors by wire transfer to the
Company’s designated bank account on the Closing Date. If, as of September 30, 2022, Wenzhou Ruihe and Wenzhou Ruizhi
has  not  completed  the  Fund  Filing,  the  Company,  Wenzhou  Ruihe  and  Wenzhou  Ruizhi  each  have  the  right  to  cancel  This
Capital  Increase,  in  which  case,  the  rights  and  obligations  of  Wenzhou  Ruihe  and  Wenzhou  Ruizhi  under  this  Agreement
automatically  terminate  and  are  not  subject  to  the  Article  8  “Liability  for  Breach  of  Contract;  Indemnification”  of  this
Agreement. The amount of Investors Investment Amount payable by the Investors shall be as follows:

(1)

(2)

(3)

(4)

(5)

(6)

Qingdao  Zhongou  shall  pay  RMB  20  million  to  the  Company  to  fulfill  its  obligation  to  contribute  to  the  New
Registered Capital subscribed. Among such investment amount, RMB equivalent to USD 235,664 shall be booked to
the  Company’s  registered  capital,  and  the  remaining  RMB  equivalent  to  USD  2,906,520  shall  be  booked  to  the
Company’s capital reserve as a premium.

Qingdao  Haiyang  Innovation  shall  pay  RMB  20  million  to  the  Company  to  fulfill  its  obligation  to  contribute  to  the
New  Registered  Capital  subscribed.  Among  such  investment  amount,  RMB  equivalent  to  USD  235,664  shall  be
booked to the Company’s registered capital, and the remaining RMB equivalent to USD 2,906,520 shall be booked to
the Company’s capital reserve as a premium.

Wenzhou Ruihe shall pay RMB 50 million to the Company to fulfill its obligation to contribute to the New Registered
Capital  subscribed.  Among  such  investment  amount,  RMB  equivalent  to  USD  589,159  shall  be  booked  to  the
Company’s registered capital, and the remaining RMB equivalent to USD 7,266,301 shall be booked to the Company’s
capital reserve as a premium.

Huzhou  Jingyun  shall  pay  RMB  48.58  million  to  the  Company  to  fulfill  its  obligation  to  contribute  to  the  New
Registered Capital subscribed. Among such investment amount, RMB equivalent to USD 572,427 shall be booked to
the  Company’s  registered  capital,  and  the  remaining  RMB  equivalent  to  USD  7,059,937  shall  be  booked  to  the
Company’s capital reserve as a premium.

Wenzhou Ruizhi shall pay RMB 30 million to the Company to fulfill its obligation to contribute to the New Registered
Capital  subscribed.  Among  such  investment  amount,  RMB  equivalent  to  USD  353,496  shall  be  booked  to  the
Company’s registered capital, and the remaining RMB equivalent to USD 4,359,780 shall be booked to the Company’s
capital reserve as a premium.

Jiaxing  Hongtong  shall  pay  RMB  25  million  to  the  Company  to  fulfill  its  obligation  to  contribute  to  the  New
Registered Capital subscribed. Among such investment amount, RMB equivalent to USD 294,580 shall be booked to
the  Company’s  registered  capital,  and  the  remaining  RMB  equivalent  to  USD  3,633,150  shall  be  booked  to  the
Company’s capital reserve as a premium.

9

(7)

(8)

(9)

Ningbo Yijing shall pay RMB 37.6 million to the Company to fulfill its obligation to contribute to the New Registered
Capital  subscribed.  Among  such  investment  amount,  RMB  equivalent  to  USD  443,048  shall  be  booked  to  the
Company’s registered capital, and the remaining RMB equivalent to USD 5,464,258 shall be booked to the Company’s
capital reserve as a premium.

Ningbo  Hangjing  shall  pay  RMB  41.5  million  to  the  Company  to  fulfill  its  obligation  to  contribute  to  the  New
Registered Capital subscribed. Among such investment amount, RMB equivalent to USD 489,002 shall be booked to
the  Company’s  registered  capital,  and  the  remaining  RMB  equivalent  to  USD  6,031,029  shall  be  booked  to  the
Company’s capital reserve as a premium.

Ningbo  Zhengjing  shall  pay  RMB  19.75  million  to  the  Company  to  fulfill  its  obligation  to  contribute  to  the  New
Registered Capital subscribed. Among such investment amount, RMB equivalent to USD 232,718 shall be booked to
the  Company’s  registered  capital,  and  the  remaining  RMB  equivalent  to  USD  2,870,189  shall  be  booked  to  the
Company’s capital reserve as a premium.

4.3

Post-Closing Covenants

I-Mab  HK  (for  Article  4.3  (3),  (4)  and  (10)  to  (16)  only),  the  Company,  Hangzhou  Yijing,  Hangzhou  Lanjing,  and  the
Management hereby represent and covenant to the Investors (including the Series A Round Investors) as follows:

(1)

(2)

(3)

The  Company  shall,  within  two  (2)  months  after  the  Closing,  complete  the  registration  of  changes  with  the  Market
Regulation  Bureau  (including  the  registration  of  change  of  registered  capital,  shareholders  change  and  shareholding
percentage  change,  as  well  as  filing  for  the  Amended  Articles  of  Association  and  the  Company’s  new  Board  of
Directors,  collectively  referred  to  as  the  “Market  Regulation  Bureau  Registration”)  for  the  transactions
contemplated hereunder, obtain an updated business license, and complete the necessary tax registration, MOFCOM
foreign invested companies information reporting, change of foreign exchange registration, and other registrations or
filings  required  by  Applicable  Laws  of  the  PRC.  The  company  shall,  within  fifteen  (15)  Working  Days  after  the
investment payment by the Investor, conduct capital verification on the Investors Investment Amount by an accounting
firm  approved  by  the  Investors  in  advance,  and  issue  a  capital  verification  report  on  the  full  payment  of  Investors
Investment Amount in the current period, and submit the original capital verification report to the Investors.

After the Closing, the Company shall prompt Hangzhou Yijing and Hangzhou Lanjing to complete the paid-in capital
contribution to I-Mab Hangzhou on time, and to fulfill the aforementioned capital contribution obligations no later than
before the company’s listing equity division reform.

Before  the  company  applies  for  Qualified  IPO,  the  company  shall  cooperate  with  the  engaged  intermediaries  at  that
time to eliminate potential independence issues.

10

(4)

(5)

(6)

(7)

(8)

(9)

(10)

After  the  Closing,  the  Company  and  the  Management  shall,  prior  to  the  Company’s  application  for  Qualified  IPO,
cooperate with the then engaged IPO intermediaries in eliminating circumstance that may constitute obstacles to the
Qualified IPO; transactions between the Company and its Affiliated Company(ies), and between the Company and its
directors, officers, managers, shareholders or other Affiliates, shall be conducted in compliance with requirements of
relevant securities regulatory rules such as reasonableness, necessity, fairness, etc.

After the Closing, the Company will apply for, renew and obtain all licenses, authorizations, approvals, recognitions or
filings (hereinafter referred to as “Business Qualifications”) from governmental authorities or regulatory authorities
required to carry out its business activities within 6 months after the Closing Date in accordance with the provisions of
laws and regulations, including, but are not limited to, drug manufacturing licenses, drug registration approval letters,
Good Manufacturing Practice certification, and Good Supply Practice for Drugs certification.

After  the  Closing,  the  Company  will  gradually  establish  its  own  brand  name  and  trademark  system,  and  apply  for
registration of trademarks used in the operation of its existing business and/or proposed business.

The Company will promptly fulfill its notification obligations to Bank of Communications, Hangzhou Huansha Sub-
Branch after the Closing.

After  the  Closing,  the  Company  shall  construct  the  project  of  Hangzhou  manufacture  base  in  accordance  with  the
applicable laws or requirements of Government Agencies, and shall, based on process of the construction, complete
procedures  required  by  the  applicable  laws  such  as  relevant  approval,  registration  or  filing,  ensure  that  all  material
aspects  of  the  Company’s  construction,  fire  protection,  environmental  protection  and  production  safety  comply  with
the requirements of laws and regulations.

After the Closing, the Company will gradually set up subsidiaries in different locations, and the subsidiaries in different
locations will pay social security and provident fund for employees in different locations to gradually standardize the
social security and provident fund contributions.

Subject  to  the  completion  of  the  Closing  of  This  Capital  Increase,  I-Mab  HK  covenants  to  make  its  reasonable
commercial efforts to reduce the proportion of equity held in the Company by no more than 30% within 3 months after
the Closing of This Capital Increase (to the extent that the equity in the Company is sufficiently diluted at that time), in
the specific manner to be determined by subsequent consultation between the Parties, and the other parties undertake to
cooperate with their reasonable commercial efforts. If due to market reasons or other subjective reasons not subjective
to  I-Mab  HK,  it  is  unable  to  complete  the  above-mentioned  equity  proportion  adjustment  within  3  months  after  the
Closing  of  This  Capital  Increase,  such  period  may  be  postponed  to  a  period  agreed  upon  by  all  Parties  after
consultation  between  the  Parties.  For  the  avoidance  of  doubt,  an  increase  in  Proportion  of  Shares  resulting  from  the
performance  of  Article  3.5  of  the  Shareholders  Agreement  shall  not  be  deemed  to  be  a  breach  by  I-Mab  HK  of  its
obligations under this subparagraph.

11

(11)

(12)

(13)

(14)

The  Parties  are  willing  to  cooperate  in  making  reasonable  commercial  efforts  to  make  the  Management  Holdco
(including  the  ESOP  Holdco)  the  largest  shareholder  of  the  Company  when  the  Series  C  Round  of  financing  of  the
Company is completed.

In view of the fact that the Company takes the clinical development and commercialization of drugs for autoimmune
disease indications as its main business and future key development direction, I-Mab HK and I-Mab Shanghai and their
affiliates  guarantee  that  I-Mab  Shanghai  will  not  focus  on  autoimmune  disease  as  its  business  development  in  the
future, and in the event of any new business or business opportunities in such field, they shall communicate with the
Company for its consent, and give priority to deliver such relevant business opportunities to the Company under the
same conditions. With respect to the relevant business of drugs for autoimmune disease indications in stock at I-Mab
Shanghai as of the date of signing this Agreement (see Schedule 5 Disclosure Schedules to this Agreement for details),
I-Mab HK and I-Mab Shanghai shall make their best commercial efforts to actively seek arrangements such as external
authorization  or  transfer  before  the  company  applies  for  Qualified  IPO,  and  give  priority  to  deliver  such  relevant
business opportunities to the Company under the same conditions.

In  view  of  the  fact  that  I-Mab  Shanghai  takes  the  clinical  development  and  commercialization  of  oncology  drug
development as its main business, the Company guarantees that in principle no new target development of oncology
drugs  will  be  added  in  the  future.  For  the  currently  available  oncology  drug  development  targets  L1A3,  T6,  A3  and
OXIF,  the  Company  will  actively  seek  arrangements  such  as  external  authorization  or  transfer,  and  give  priority  to
transferring such commercial opportunities to I-Mab Shanghai or its affiliates under the same conditions. If the above-
mentioned targets of the Company are indeed the same or similar to the other target indications of I-Mab Shanghai and
its affiliates in the oncology drug development pipeline indications, I-Mab Shanghai and the Company shall negotiate
and determine the solution separately at that time. However, I-Mab HK and the Company shall address the same issues
with respect to oncology drug indications no later than before the Company applies for Qualified IPO, so as to ensure
that  the  Company  meets  the  relevant  requirements  of  Qualified  IPO  for  horizontal  competition  at  that  time.
Notwithstanding the foregoing, I-Mab HK and I-Mab Shanghai covenant to make their best efforts not to take actions
that  increase  the  matter  of  inter-sector  competition  between  the  Company  and  I-Mab  Shanghai  and  violate  the
circumstances agreed in this Agreement, so as to reduce the issue of horizontal competition with the Company since
the Closing of This Capital Increase.

I-Mab HK and I-Mab Shanghai guarantee that they will, based on the actual situation of the equity in the Company
held by I-Mab HK at that time, cooperate with the then engaged IPO intermediaries by the Company to provide the
necessary cooperation in eliminating the circumstances that constitute a material impediment to the Qualified IPO of
the  Company,  including  but  not  limited  to:  1)  issue  a  Letter  of  Commitments  to  avoid  horizontal  competition  (if
required)  and  cooperate  with  the  signing  of  relevant  written  agreements  (if  involved)  in  accordance  with  the  audit
requirements  at  that  time  and  the  proportion  of  shares  of  I-Mab  HK  at  that  time  when  the  Company  applies  for  a
Qualified IPO; 2) make its best commercial efforts to cooperate in reducing connected transactions with the Company
in accordance with the audit requirements at that time when the Company applies for a Qualified IPO, and ensure that
its connected transactions with the Company shall be conducted in compliance with requirements of relevant securities
regulatory  rules  such  as  reasonableness,  necessity,  and  fairness;  3)  in  order  to  meet  the  audit  requirements  of  the
independence of the Company’s personnel when applying for the Qualified IPO, I-Mab HK shall cooperate with the
Company  to  improve  the  independence  of  the  Company’s  personnel  by  June  30,  2023,  including  but  not  limited  to
make the relevant personnel of I-Mab HK no longer participate in the operation and management of the Company as
members  of  the  management  of  the  Company  and  to  maintain  mutual  independence  with  the  management  of  the
Company.

12

(15)

(16)

Except for force majeure, I-Mab HK and I-Mab Shanghai guarantee that the interests in the Target Pipeline L1A3 as
listed in Schedule 1 to Series A Round Investment Agreement shall be fully transferred to the Company by June 30,
2022 and the relevant conditions set out in Article 3.1 (8) and (9) of the Series A Round Investment Agreement have
been fully satisfied (collectively referred to as the “Transfer of Interests Obligations of Series A Round Investment
Agreement”). Unless otherwise agreed with the Company, I-Mab HK and I-Mab Shanghai guarantee that regardless of
whether or not the Transfer of Interests Obligations of Series A Round Investment Agreement have been completed,
neither  I-Mab  HK  nor  I-Mab  Shanghai  shall  further  advance  the  arrangements  for  the  clinical  development  and
commercialization of the intangible assets listed in Schedule 1 to the Series A Round Investment Agreement and the
related  product  pipeline  utilizing  or  involving  such  intangible  assets. In  order  to  meet  the  Company’s  Qualified  IPO
filing  or  submission  requirements,  the  Company  warrants,  and  I-Mab  HK  and  I-Mab  Shanghai  warrant  that  the
Company shall consummate a complete Phase 1 human clinical trial of at least one drug by June 30, 2023.

I-Mab HK guarantees that, although it always insists on the truthfulness and accuracy of the content in its information
disclosure,  for  the  sake  of  clarity  of  its  obligations,  I-Mab  HK  shall  neither  expressly  or  impliedly  disclose  the
Company still as a controlled subsidiary of I-Mab HK nor bring the Company’s business and products into the scope of
control of I-Mab HK at that time for publicity and disclosure, from the date when the proportion of equity of I-Mab HK
in the Company is reduced to within 30% (to the extent that the equity in the Company is sufficiently diluted at that
time).

Article 5

Representations and Warranties

5.1

Company’s  Representations  and  Warranties.  The  Company,  Hangzhou  Yijing,  Hangzhou  Lanjing  and  the  Management
(collectively  referred  to  as  the  “Warrantors”)  jointly  make  the  representations  and  warranties  to  the  Investors  as  follows:
except  for  the  exceptional  circumstances  as  disclosed  by  the  Company  to  the  Investors  in  the  disclosure  schedules  attached
hereto  as  Schedule  5  (“Disclosure  Schedules”,  the  specific  items  set  forth  in  the  Disclosure  Schedules  shall  qualify  the
corresponding representations and warranties hereunder), the Warrantors make the following representations and warranties in
connection  with  this  Agreement  on  the  Signing  Date  and  the  Closing  Date  of  this  Agreement  (or,  for  representations  and
warranties made on a specific date, such representations and warranties are deemed to be made on that specific date), and the
Warrantors  acknowledge  and  agree  that  the  Investors  rely  on  the  authenticity,  completeness  and  accuracy  of  these
representations and warranties to sign this Agreement and consummate the transactions contemplated under this Agreement.

(1)

(2)

Due Organization. The Company is a limited liability company established and validly established in accordance with
the conditions and legal procedures prescribed by the PRC laws. It has obtained all necessary approvals and permits
from Government Agencies for its establishment.

Constitutional Documents. The constitutional documents of the Company that have been delivered to the Investors are
true and complete. On the Signing Date and the Closing Date of this Agreement, the above-mentioned constitutional
documents  are  valid  and  have  not  been  replaced  by  other  documents  (provided  that  at  Closing,  such  constitutional
documents  will  be  superseded  by  the  Amended  Articles  of  Association).  All  legal  and  procedural  requirements  and
other  procedures  related  to  the  above-mentioned  constitutional  documents  have  been  properly  complied  with  and
performed in accordance with the law.

13

(3)

(4)

(5)

Authorization  and  Enforceability.  After  the  execution,  delivery  and  performance  of  this  Agreement  and  the  other
Transaction  Documents  are  duly  authorized  and  this  Agreement  and  the  other  transaction  documents  to  which  the
Company,  Hangzhou  Yijing,  Hangzhou  Lanjing  and  the  Management  are  a  Party  shall  be  executed  by  the  relevant
parties,  they  shall  constitute  valid  and  legally  binding  agreements  on  the  Company,  Hangzhou  Yijing,  Hangzhou
Lanjing and the Management. The form of this Agreement is lawful, and is enforceable upon the Company, Hangzhou
Yijing,  Hangzhou  Lanjing  and  the  Management.  The  Company,  Hangzhou  Yijing,  Hangzhou  Lanjing  and  the
Management’s execution, delivery and performance of this Agreement and other Transaction Documents to which they
are a Party, and the rights and obligations under such Transaction Documents, will not violate laws and regulations of
the PRC nor the articles of association or other constitutional documents of the Company, Hangzhou Yijing, Hangzhou
Lanjing and the Management, will not violate court judgments, rulings, arbitral awards, administrative decisions, orders
which are binding on or applicable to the Company, Hangzhou Yijing, Hangzhou Lanjing and the Management, and
will not violate any document, contract or agreement to which the Company, Hangzhou Yijing, Hangzhou Lanjing and
the Management are a Party.

Capital Contribution. As of the Signing Date of this Agreement, the registered capital of the Company has been paid in
full, except for the registered capital owned by Hangzhou Lanjing and Hangzhou Yijing.

Government Approval. As of the Closing Date, the Company has full power and authority to hold, lease or operate its
property  (including  without  limitation  Intangible  Assets  of  the  Licensed  Pipelines)  and  operate  its  existing  business
(including without limitation the Licensed Pipelines), and has all the required approvals, permits, licenses, certificates,
consents,  or  other  approval  documents  from  government  agencies  (“Approval Documents”)  for  holding,  leasing  or
operating  its  property  (including  without  limitation  Intangible  Assets  of  the  Licensed  Pipelines)  and  operating  its
existing  business  (including  without  limitation  the  Licensed  Pipelines),  there  is  no  ongoing  or  potential  government
agency Approval Documents that may be suspended or revoked, unless the absence of such Approval Documents of the
government  agency,  or  the  potential  revocation  or  cancellation  of  such  Approval  Documents  from  the  government
agency will not prevent the Company from fulfilling this Agreement or cause material negative effects. The Company
has  always  complied  with  the  requirements  of  these  Approval  Documents,  and  has  not  violated  these  Approval
Documents in any material respect. The Company has never received any written or oral notice from any government
department informing it that it has violated any provisions under any such Approval Documents.

14

(6)

(7)

(8)

Company’s External Investment. The Company does not have any domestic subsidiaries, branches or entities invested
in  other  forms,  nor  any  other  investment  commitments,  except  for  holding  100%  of  the  equity  in  Yijing  Biotech
(Beijing)  Co.,  Ltd.  and  Lanjing  Biotech  (Shanghai)  Co.,  Ltd.,  and  holding  I-Mab  Biopharma  (Hangzhou)  Co.,  Ltd.
Shanghai Branch.

Financial  Statements;  Off-Balance  Sheet  Liabilities.  The  Company  has  delivered  the  unaudited  Company’s  balance
sheet  and  related  income  statement  and  cash  flow  statement  (hereinafter  collectively  referred  to  as  “Management
Statements”)  as  of  the  financial  statement  date  (that  is,  November  30,  2021).  The  Management  Statements  (a)  are
prepared  based  on  the  Company’s  books  and  other  financial  records,(b)  in  material  respects  fairly  reflect  the
Company’s financial status and operating results as of the financial statement date or the corresponding period, and (c)
have been prepared in accordance with China’s general accounting principles and following the principle of consistency
in line with the Company’s previous practice.

The  Company  does  not  have  any  other  material  off-balance  sheet  transactions,  debts,  arrangements  and  obligations,
including but not limited to relationships with non-consolidated reporting entities.

Related  Party  Transactions.  There  are  no  material  transactions  between  the  Company  and  the  Company  and/or
Affiliated  Companies  and  their  directors,  officers,  managers,  shareholders,  or  other  related  parties  (hereinafter
collectively referred to as “Related Parties”) that contain terms different from those terms entered into with unrelated
third  parties  based  on  the  fair  trade.  As  of  the  Closing  Date,  except  for  the  Transaction  Documents  (including  the
agreement or documents required or contemplated by the Transaction Documents) and labor-related contracts, there is
no contract, agreement or other transaction between the Company and any Related Parties that is still within the validity
period  or  has  not  been  completed,  and  there  are  no  due  or  outstanding  debts,  liabilities  nor  any  other  payables  and
receivables with the Related Parties, except for those that will not cause Material Adverse Changes in the Company’s
production and operation.

15

(9)

No  Material  Adverse  Change.  From  the  financial  statement  date  to  the  Closing  Date,  the  Company’s  business
operations are normal, specifically:

(a)

(b)

(c)

(d)

(e)

(f)

There is no Material Adverse Change to the Company’s financial situation, assets, liabilities, and net business
value, except for changes in the ordinary course of operation;

There are no strikes, labor disputes, or any new or continuation of events or circumstances that cause or may
cause Material Adverse Change to the Company;

There is no cancellation or waiver of right that may have a material adverse impact on the business operations,
nor  is  there  cancellation  or  waiver  of  any  rights  or  claims  with  material  value,  nor  is  there  cancellation  or
waiver of any rights or claims against Related Parties;

No Material Adverse Change to the relationship between the Company and its suppliers, clients or customers
has occurred or may occur;

No Material Adverse Change in the accounting or bookkeeping methods or accounting practices related to or
affecting the business of the Company has occurred;

There is no sale, transfer or lease of any material property or asset (whether tangible or intangible), nor any
incumbrance created on such assets, and there is no payment, loan or prepayment obligation related to such
material property or asset.

(10)

(11)

Tax Matters. All tax statements, reports and forms (“Tax Reports”) that need to be submitted by the Company have
been provided to the competent government authorities in a timely manner, and all Tax Reports accurately reflect the
Company’s tax burden in all material respects for the period, property, or event recorded. All taxes, including tax in Tax
Reports or taxes that any government agency believes shall be paid by the Company, or taxes levied on the Company’s
property, assets, capital, turnover, or income have been paid in full (except for taxes fully reserved in the relevant Tax
Reports). At present, there is no unfinished or potential inspection, inquiry or audit by a competent department on the
Company. The tax that the Company shall withhold in accordance with the law has been withheld and handed over to
the competent government agency, or the Company shall keep it properly. The Company does not have any material tax
liability or obligation of any nature, unless such tax liability or obligation is (a) fully reflected in the Tax Reports; or (b)
occurs during the normal operating activities of the Company since its establishment.

Property  Ownership/No  Incumbrance.  Except  for  the  cases  listed  in  Article  1.1  of  the  Disclosure  Schedules  and  the
leased real estate, the Company has the complete and marketable rights of all other real estate (if any), and there is no
liens or other incumbrances over these rights. With respective to the leased real estate, all leases of the Company are
fully effective; all the rent and additional payments due have been paid; since the beginning of the original lease period,
the  Company  has  occupied  properly,  and  there  has  not  been  any  material  violation  of  the  provisions  of  the  lease
contract,  nor  has  there  been  any  material  breach  of  contract  or  any  event,  situation  or  behavior  that  may  lead  to
violation of the lease contract. The Company’s leased real estate is in good maintenance condition, and is sufficient to
meet the current purpose of use (except for normal wear and tear).

The Company legally owns the material tangible movable property (or have legal right to use such tangible movable
property) required to engage in the main business and is able to operate its tangible movable property independently. To
the knowledge of the Warrantors, there is no contracts, agreements, commitments, documents or laws and regulations,
government  regulations,  government  requirements,  measures,  litigation  or  other  legal  procedures  that  may  affect  the
Company’s  legal  and  complete  ownership  or  use  of  its  tangible  movable  property  in  material  respects.  To  the
knowledge  of  the  Warrantors,  the  Company’s  use  of  the  tangible  movable  property  for  business  operation  is  in
compliance with PRC laws and will not infringe the rights and interests of any third parties.

16

(12)

Employees. The Company does not violate the applicable PRC labor laws in any material respects (including but not
limited  to  labor  contracts,  wages,  working  hours,  social  insurance  and  housing  provident  fund  payment,  etc.)  nor  is
there any material liabilities, contingent liabilities or unpaid fees due to the requirements of applicable PRC labor laws.
The  Company  has  paid  withholding  tax  on  behalf  of  the  employees  to  the  relevant  Government  Agency,  or  has
withheld and reserved on behalf of its employee payable amount that is not yet due for these Government Agencies,
and the Company does not have any material amounts of unpaid wages, taxes, penalties or any material payments due
to violation of the above-mentioned obligations. The Company does not have any unpaid economic compensation that
should be paid for the termination of labor relations or other material payment obligation for similar compensation or
compensation costs related to the employment relationship.

Except for social insurance and housing provident funds as required by the PRC laws and commercial insurance for its
employees,  the  Company  has  not  participated  and  is  not  subject  to  any  other  pension,  retirement,  profit  sharing,
deferred compensation or other employee benefit plan, arrangement, agreement or understanding, nor is there any other
pension, retirement, profit sharing, deferred compensation, or other employee benefit plan, arrangement, agreement, or
understanding  that  any  employee  or  former  employee  (or  its  beneficiaries,  if  any)  has  the  right  to  participate  in  or
enjoy.  The  Company  has  been  paying  social  insurance  and  housing  provident  funds  for  all  employees  in  accordance
with the law.

There are no pending labor controversy or disputes between the Company and its existing or former employees, and to
the knowledge of the Warrantors, there are no potential labor controversy or disputes.

The Company has not entered into any collective contract or similar contract or arrangement with employees.

17

(13)

Material Contracts. Any Material Contract was executed under normal commercial conditions. Any Material Contract
is  a  contract  that  is  valid  and  binding  in  accordance  with  its  terms  (except  for  those  that  cannot  be  enforced  due  to
bankruptcy,  liquidation,  reorganization  or  other  similar  laws  that  affect  the  general  rights  of  creditors);  there  is  no
violation  or  breach  of  any  Material  Contracts  in  material  respects  by  the  Company,  nor  is  there  any  matter  that  will
constitute a material breach of contract by the Company; the Company has not received any notice on termination or
cancellation of any Material Contract or in connection with breach under any Material Contract; and to the knowledge
of the Warrantors, there is no violation or breach of any Material Contracts in material respects by the counter party(ies)
thereof, nor is there any matter that will constitute a material breach of contract by the counter party(ies); in addition,
the consummation of the transaction contemplated in this Agreement will not (and will not give anyone the right to)
terminate or modify the Company’s rights under any Material Contracts, or accelerate the performance or increase the
Company’s obligations under any Material Contracts, or create any liens or other incumbrances therefrom. There is no
contract,  agreement  or  other  arrangement  that  grants  to  any  person  any  priority  to  purchase  the  material  assets  or
property of the Company (excluding purchases made in the normal course of business consistent with past practice).

“Material Contracts” refer to any material contracts to which the Company is a party, or involving any property or
assets of the Company, including: (a) contract under which any party has obligation to pay RMB 5 million or more; (b)
real estate lease contract; (c) exclusive cooperation/license contract, or contract involving non-compete or other clauses
that  restrict  or  interfere  with  the  Company’s  capacity  of  operation  in  any  manner  or  in  any  jurisdiction;  (d)  contract
stipulating  line  of  credit;  (e)  contract  stipulating  securities  provided  by  the  Company;  (f)  contract  granting  power  of
attorney or similar authorization to any person; (g) contract involving right of first refusal; (h) contract involving any
transaction  between  the  Company  and  its  Related  Party(ies);  (i)  collective  contract  or  contract  providing  severance
(except statutory severance) to any officers, directors or employees, (j) contract that materially affects operation of the
Company, or contract that is material to the Company’s operation; (k) contract stipulating that the Company shall make
payment or provide benefits to third party(ies) as a result of consummation of the transactions contemplated under this
Agreement;  (l)  material  license  agreement  (including  agreement  under  which  the  Company  licenses  Intellectual
Property  to  other  person(s),  and  agreement  under  which  the  other  person(s)  license  Intellectual  Property  to  the
Company) or transfer agreement in connection with Intellectual Property; (m) contract that is not entered into in normal
commercial  terms;  (n)  contract  to  transfer,  sell  or  dispose  of  material  assets  of  the  Company;  (o)  contract  involving
equity sale, equity acquisition, investment, financing, joint venture, merger and acquisition, restructure, profit sharing
or  change  in  control;  (p)  contract  that  creates  incumbrances  on  the  equity  or  material  property  of  the  Company;  (q)
strategic cooperation agreement entered into with any partner that is material to the operation and development of the
Company;  and  (r)  any  memorandum  of  understanding,  letter  of  intent,  contract  or  agreement  entered  into  with
government departments (including enterprises solely owned or controlled by the State).

18

(14)

Intellectual Property.

(a)

(b)

(c)

(d)

As of the Closing Date, all Intellectual Property in connection with the business operation of the Company and
the Licensed Pipelines are legally and beneficially owned by the Company or legally used with the permission
of  the  owner(s)  (as  the  case  may  be),  and  there  are  no  incumbrances  over  such  Intellectual  Property.  The
Company’s Intellectual Property is sufficient to enable it to operate its business in its current state.

Article  1.2  of  the  Disclosure  Schedules  sets  forth  a  list  of  Intellectual  Property  of  the  main  Pipelines  of  the
Company and Intellectual Property transferred to the Company. To the knowledge of the Warrantors as of the
Signing Date, there are no notices, statements, claims, opposition, cancellation or litigation by third parties that
allege the Intellectual Property used by the Company as invalid.

All licenses of Intellectual Property used by the Company are fully effective. The Company has not, as of the
Signing  Date  and  the  Closing  Date,  breached  any  of  the  material  terms  of  the  licenses,  and  the  counter
party(ies) to the licenses have not stated in writing that it will breach the contract.

To the knowledge of the Warrantors as of the Signing Date, the Company has not interfered with, infringed,
improperly used or violated the Intellectual Property of third parties due to the use of Intellectual Property or
licensed  Intellectual  Property,  nor  has  it  received  any  allegations,  complaints,  claims,  demands  or  notices
claiming any such interference, infringement, improper use or violation. In addition, to the knowledge of the
Warrantors,  no  third  party  has  interfered  with  the  Company’s  Intellectual  Property,  or  infringed,  improperly
used or violated the same.

(15)

(16)

(17)

Litigation. There are no pending or threatened litigation, arbitration or other legal proceedings against the Company or
its property or rights by any court or arbitral tribunal, and there are no pending or threatened administrative or other
proceedings  by  any  Government  Agency  (including  investigations  by  such  Government  Agency),  which  may  cause
Material  Adverse  Changes  to  the  Company’s  right  or  ability  to  continue  its  current  business,  or  to  the  Company’s
financial or other conditions, property or assets; there is no valid basis for initiating such litigation, arbitration, legal
proceedings, administrative and other procedures or investigations. The Company is not bound by any judgment, order
or ruling made in any litigation, arbitration or other legal proceedings that may cause Material Adverse Changes to its
operations. The Company has not received any notice of material disputes or claims under any contract.

Compliance.  The  Company  has  not  (a)  materially  violated  the  law;  (b)  materially  violated  approval  of  any  relevant
Government Agency; (c) violated the provisions of its articles of association, or (d) failed to perform or comply with
any material obligations, agreements, covenants or conditions in any contract on which it is a party or which binds it or
any of its property. The Company has not received any notification of such breach of contract, violation or omission,
whether have occurred or may occur.

Books  and  records.  The  Company’s  books  and  records  are  true  and  accurate  in  all  material  respects,  without  any
material inaccuracies or inconsistencies, and are prepared and maintained in accordance with applicable laws and good
business  practices,  so  as  to  enable  the  Company  to  prepare  its  financial  statements  in  accordance  with  the  generally
accepted  accounting  principles  of  the  PRC.  The  Company’s  meeting  minutes  book  accurately  reflects  in  all  material
aspects  all  the  important  actions  and  legal  procedures  that  have  been  taken  by  the  Company’s  shareholders  and  the
Board of Directors as of the record date.

19

(18)

(19)

External  Shareholdings  and  External  Working  by  Senior  Officers.  Except  as  expressly  stated  in  Article  1.3  of  the
Disclosure Schedules,  to  the  knowledge  of  the  Warrantors,  no  Senior  Officers  of  the  Company  directly  or  indirectly
own,  manage,  control,  or  invest  in  any  business  that  competes  with  the  business  of  the  Company  (“Competing
Business”), act as a director, management, advisor or employee of any company or entity engaged in such business, or
hold any equity or share in any company or entity engaged in such business (except holding not more than 5% of all
outstanding shares of a listed company).

Disclosures. All documents, materials and information provided by the Company in the course of due diligence by the
Investors are true, accurate, complete and valid, and are not misleading. Documents, statements and information related
to  the  Company  that  would  be  reasonably  expected  to  materially  affect  the  Investors’  intention  to  consummate  the
transaction contemplated hereunder have been disclosed to the Investors without material omissions.

5.2

Representations  and  Warranties  of  Series  A  Round  Investors,  Investors  and  I-Mab  HK.  Series  A  Round  Investors,
Investors and I-Mab HK) separately but not jointly represent and warrant to Other Parties as follows:

(1)

(2)

Legal  or  Corporate  Status.  Such  party  is  a  partnership  or  company  legally  established  and  effectively  existing
according to the law of its place of registration, or a natural person with full capacity for civil rights and civil conduct.

Authorization and Enforceability. This Agreement is duly authorized, and after executed by the Parties, shall constitute
a  valid  and  legally  binding  agreement  on  such  party;  the  form  of  this  Agreement  is  lawful,  and  is  enforceable  upon
such party in the PRC.

6.1

Business Operation

Article 6

Transitional Period Covenants

(1)

From the Signing Date of this Agreement to the Closing Date, except for implementing the transactions contemplated
hereunder, the Company and the Management shall take the following actions:

20

(a)

(b)

(c)

(d)

(e)

In the normal course of business, conduct business in a manner that is in compliance with Applicable Laws
and is consistent with past practices and prudent business practices;

Ensure the integrity of existing business organization;

Maintain all operating assets and equipment (including any owned or licensed Intellectual Property) in normal
operation and good maintenance;

Renew and update registered Intellectual Property rights in the normal course of business;

Promptly notify the Investors of any material violation of the Company’s representations and warranties, or
any material violation of other terms of this Agreement.

(2)

The Company and the Management covenant that from the Signing Date of this Agreement to the Closing Date, except
for implementing the transactions contemplated hereunder, none of the Company and the Management shall take any
of the following actions without the Investors’ prior written consent:

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

Terminate the operation of the Company’s existing business or substantially change any part of its business
behavior;

Sell or dispose of all or most of the Company’s intangible assets or assets;

Distribute  any  profits  among  shareholders  through  the  distribution  of  dividends,  capitalization  of  provident
funds and otherwise;

Create or amend terms and conditions of any employee equity incentive plan without the written consent of
the Investors;

Amend the Company’s previously adopted financial rules or change the Company’s fiscal year;

Increase  or  reduce  registered  capital,  change  of  equity  (except  for  matters  for  purposes  of  the  transactions
contemplated  hereunder),  or  attract  any  investment  or  obtain  any  investment  commitments  other  than  those
contemplated hereunder;

Change the company form;

Sell,  transfer,  license,  mortgage,  create  any  incumbrance  or  otherwise  dispose  of  any  trademarks,  patents,
copyrights or other Intellectual Property owned by the Company;

Adopt any resolution to terminate the Company or conduct any merger, division, bankruptcy, reorganization,
liquidation, dissolution or designation of receiver or similar events of the Company;

Except for purpose of performing this Agreement, amend or restate the Company’s articles of association;

Approve any transfer of equity of the Company; or

Enter  into  commercial  cooperation  with  any  third  party  on  the  Pipelines  to  be  injected  into  the  Company,
including but not limited to joint development, external licensing and other cooperation.

21

6.2

Exclusivity. The Company and the Management covenant that from the Signing Date of this Agreement to the earlier to occur
of: (1) the Closing Date; (2) the date of termination of this Agreement, without the Investors’ prior written consent or unless
otherwise  agreed  in  this  Agreement,  the  Company  and  the  Management  may  not,  and  shall  procure  their  Affiliates  and  their
respective directors, supervisors, senior officers, employees, representatives or agents not to:

(1)

(2)

(3)

Initiate, induce or instigate sale or other disposal of equity in the Company, or any inquiry, quotation or offer related to
acquisition or merger of the Company (each referred to as an “Alternative Transaction”);

Participate in any discussions or negotiations on any Alternative Transactions, or provide or disclose any information
about the Company or the business for any Alternative Transactions; or

Enter  into  any  binding  or  non-binding  written  or  oral  agreement,  arrangement  or  understanding  for  any  Alternative
Transactions.

6.3

Notification of Specific Matters. Each Party to this Agreement covenants that from the Signing Date to the Closing Date of
this  Agreement,  it  shall  notify  the  Other  Parties  and  provide  the  corresponding  supporting  documents  immediately  after
knowledge of the following matters:

(1)

(2)

Any  facts  or  circumstances  that  constitute  a  material  violation  of  its  representations  and  warranties  made  in  this
Agreement; or

Become aware of the occurrence of certain facts or circumstances after the Signing Date of this Agreement, and the
occurrence of these facts or circumstances will or may cause material violation of such representations and warranties
made by the Party.

Article 7

Other Agreements and Covenants

7.1

Equity  Incentive  Plan.  The  Parties  agree  that  within  5  months  after  the  completion  of  the  Closing,  the  Company  will
implement the Company’s employee equity incentive plan (the “ESOP”) by way of additional subscription of the Company’s
registered capital by Hangzhou Lanjing or a separately established ESOP Holdco to acquire 8% equity in the Company after the
capital  increase  at  that  time.  For  such  ESOPs:  (a)  the  unit  exercise  price  for  equity  represented  by  per  USD  1  of  registered
capital  is  the  RMB  equivalent  of  USD  1,  (b)  subject  to  the  grantees  of  incentives  continuing  to  work  in  the  Company  and
passing the relevant annual performance assessment tests, 50% of the relevant award granted under the ESOP will be vested on
the two (2) years’ anniversary of the grant date (i.e. the date when the Company and the grantee of incentives signed the equity
incentive award document), and 100% of the relevant award will be vested on the three (3) years’ anniversary of the grant date;
however, upon occurrence of a Deemed Liquidation Event (as defined in the Shareholders Agreement), all unvested award then
held  by  the  grantees  of  equity  incentive  will  be  fully  vested.  Adoption  and  amendment  of  the  ESOP  and  its  specific
implementation  plan  shall  be  subject  to  approval  by  the  Company’s  Board  of  Directors  as  agreed  in  the  Shareholders
Agreement. The Parties hereby acknowledge and agree that any equity held by the ESOP Holdco in the Company shall only be
used for grant of equity incentives under equity incentive plan in accordance with the decision of the Board of Directors, and
unless  for  the  purpose  of  implementing  the  equity  incentive  plan  and  approved  by  resolution  of  the  Board  of  Directors,  the
ESOP Holdco shall not directly or indirectly transfer, pledge, create incumbrance or otherwise dispose of any equity held by it
in the Company.

22

7.2

7.3

7.4

8.1

8.2

Intellectual  Property  Protection.  After  the  Closing,  the  Company  shall  exert  all  commercially  reasonable  efforts  to  obtain
lawful  ownership  or  right  of  use  of  Intellectual  Property  (including  but  not  limited  to  patents,  trademarks,  copyrights,  know-
how, domain names and trade secrets, etc.) required for the Company’s business and operation activities, and exert all efforts to
protect the Company’s Intellectual Property from infringement by any third party.

Operation  in  Compliance  with  Laws.  After  the  Closing,  the  Company  shall  comply  with  relevant  Applicable  Laws  in  all
material aspects, continuously improve corporate governance of the Company in various aspects (including without limitation
clinical  trials,  human  generic  resources,  environmental  protection,  health  and  security,  finance,  labor,  Intellectual  Property,
social insurance, housing provident fund, taxes and business) and maintain the validity of the licenses required to operate its
business.  If,  after  the  Closing  Date,  in  accordance  with  the  relevant  Applicable  Laws  or  the  requirements  of  Government
Agencies,  there  is  a  need  to  obtain  relevant  concessions,  licenses,  permits,  approvals,  waivers,  consents,  authorizations,
registrations or filings (“Government Licenses”) for any matter or action involved in the Company’s business or its business
operations, the Company shall take all necessary measures and actions to obtain such Government Licenses in a timely manner.
The Company shall maintain insurance for its business and Target Pipelines in compliance with the laws.

Tax Payment.  Each  Party  shall  be  responsible  for  the  taxes  in  connection  with  the  transactions  contemplated  hereunder  on
which it is levied or which it is responsible to pay. The Company will conduct business operation in compliance with the laws
and regulations, and shall not engage in any activities or behaviors that involve violations of laws and regulations, including but
not limited to any violations of laws and regulations related to taxation and tax collection.

Article 8

Liability for Breach of Contract; Indemnification

Default  of  contract.  If  any  Party  fails  to  duly  or  fully  fulfill  its  obligations,  covenants  or  other  agreements  under  this
Agreement or other Transaction Documents, or the representations and warranties made by the Party under this Agreement and
other  Transaction  Documents  are  untrue,  inaccurate  or  incomplete,  then  such  Party  shall  be  regarded  as  having  breached  the
contract.

Liability for Breach of Contract; Indemnification.  When  the  breach  of  contract  described  in  Article  8.1  above  occurs,  the
breaching Party shall indemnify the non-breaching Parties for any direct losses suffered by the non-breaching Parties as a result
of the breach by the breaching Party (“Loss”). The breaching Party’s indemnification against the non-breaching Parties’ Loss or
taking  of  liability  for  breach  shall  not  affect  the  non-breaching  Parties’  right  to  require  the  breaching  Party  to  continue  to
perform the Agreement or their rights to terminate this Agreement. Subject to other provisions of the Transaction Documents, in
the event the Company fails to close a Qualified IPO as a result of I-Mab HK’s rejection to perform its obligations, covenants or
other agreement under this Agreement or under other Transaction Documents to resolve issues of horizontal competition and/or
related  party  transactions  to  the  extent  such  issues  create  obstacles  to  the  Qualified  IPO,  provided  that  other  Parties  agree  to
cooperate,  notwithstanding  provisions  of  Article  3.5  (1)  of  the  Shareholders  Agreement,  the  repurchase  price  which  the
Investors are entitled to will be the higher of the repurchase price set forth in Article 3.5 (1) of the Shareholders Agreement, and
the value of relevant equity based on appraisal by an appraiser to be jointly designated by the Parties at that time.

23

Article 9

Effectiveness, Amendment and Termination of the Agreement

9.1

9.2

Effectiveness. This Agreement shall take effect on the date when it is executed by the Parties or their authorized representatives
(Chinese legal persons and unincorporated organizations must also affix their official seals).

Amendment. This Agreement shall take effect on the date when it is executed by the Parties or their authorized representatives
(Chinese legal persons and unincorporated organizations must also affix their official seals).

9.3

Termination. This Agreement may be terminated prior to the Closing Date under any of the following circumstances:

(1)

(2)

(3)

(4)

With the unanimous written consent of all Parties;

Terminated pursuant to Article 3.2;

Any Party breaches this Agreement as described under Article 8 hereof, and does not cure the breach within thirty days
(30), or the breach have occurred for twice or more cumulatively, then the non-breaching Parties shall have the right to
unilaterally terminate this Agreement;

If force majeure occurs and as a result the fundamental purpose of this Agreement cannot be achieved, any Party may
terminate this Agreement.

24

9.4

10.1

Effect  of  Termination.  When  this  Agreement  is  terminated  in  accordance  with  Article  9.3,  except  Article  1  (Definitions),
Article 8 (Liability for Breach of Contract; Indemnification), Article 10 (Miscellaneous) and this Article 9.4, this Agreement
shall be invalid and shall no longer be binding or effective on the Parties who terminate the Agreement, and such Parties will be
no longer required to bear the responsibilities and obligations under this Agreement; provided, however, despite termination of
this Agreement, a Party shall still be liable for any losses incurred by the Other Parties as a result of its breach of this Agreement
before  the  termination.  For  the  avoidance  of  any  doubt,  in  case  of  termination  due  to  circumstances  under  Article  9.3  (2)  or
Article 9.3 (3) hereof, such termination of the Agreement shall take effect only between the Investor(s) to who such termination
is related and the Company, and effectiveness of the Agreement between the other Investor(s) and the Company shall not be
impacted; in such case, this Agreement shall be correspondingly adjusted so as to remove the Investors to whom the termination
is related.

Article 10

Miscellaneous

Fees. The Investors shall respectively bear the transaction costs that are incurred due to transactions contemplated under this
Agreement, including but not limited to, professional services fees incurred by the Investors and their consultant (including but
not limited to accountants, lawyers, etc.) to carry out due diligence, draft Transaction Documents, or participate in negotiations;
provided, however, the Company agrees that,(a) if the Closing is completed successfully, or (b) if the Closing fails to occur due
to reasons attributable to the Company, then the Company will bear the Investors’ transaction costs up to an aggregate amount
of RMB Fifty Thousand (50,000). Subject to the Company’s receipt of a legal invoice for the relevant fees provided by a third-
party service organization, the Company will pay such fees to the third-party service organization.

10.2

Notice.

(1)

All notices, claims, requests, consents, waivers and other communications required or permitted under this Agreement
shall be in writing (including telegram, fax or similar written form) and shall be sent, delivered or mailed, e-mailed or
faxed to the following addresses:

Company,
Hangzhou Yijing
and Hangzhou
Lanjing:

I-Mab Biopharma (Hangzhou) Co., Ltd.

Attention:

Phone:

E-mail:

Address:

***

***    

***

***

I-Mab Shanghai:

I-Mab Biopharma Co., Ltd.

Attention:

Phone:

E-mail:

Address:

***

***

***

***

25

Investors:

Pingtan Wenzhou Ruihe Investment Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Huzhou Jingyun Equity Investment Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Pingtan  Wenzhou  Ruizhi 
Partnership)

Investment  Partnership 

(Limited

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Jiaxing Hongtong Investment Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

26

Qingdao  Zhongou 
Partnership)

Industry 

Investment  Partnership 

(Limited

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Qingdao Haiyang Innovation Investment Co., Ltd.

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Yijing Management Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Hangjing Management Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Zhengjing Management Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

27

Existing
Shareholders:

I-MAB BIOPHARMA HONGKONG LIMITED

Attention:

Phone:

E-mail:

Address:

***

***

***

***

(2)

Each notice, request or other communication delivered or served in accordance with the provisions of Article 10.2
(1) shall be deemed as delivered or served as follows: (a) if sent by a courier company or personally delivered, it
shall be deemed as delivered when the relevant notice, request or communication is sent to the above-mentioned
address; (b) if sent by fax, then the relevant notice, request or communication shall be deemed as delivered when
it is transmitted to the above fax number and the report of successful fax transmission is obtained; (c) if sent by e-
mail, it shall be deemed as delivered twenty-four hours after the date on which the e-mail containing the relevant
notice, request or communication as recorded by the sender’s computer is sent, provide, however, if the sender
does not receive the recipient’s confirmation of receipt of the above e-mail within twenty-four hours (except for
automatic  email  confirmation  of  receipt),  the  above  notice,  request  or  other  communication  shall  be  sent  by
courier  or  fax  by  the  end  of  the  same  day.  The  addresses  and  e-mails  provided  by  the  Parties  be  used  as  the
address for service of dispute resolution under this Agreement. The confirmed address for service applies to all
stages of dispute resolution, including arbitration, first instance, second instance, retrial, and execution, etc.

10.3

10.4

Governing law. This Agreement shall be governed by and be construed in accordance with the PRC (for the purposes of this
Article only, it does not include the Hong Kong Special Administrative Region, Macau Special Administrative Region and
Taiwan) laws.

Dispute Resolution.  In  the  event  of  is  a  dispute  over  the  interpretation  or  performance  of  this  Agreement,  the  Parties  shall
firstly attempt to resolve the dispute through friendly consultation. If the dispute cannot be resolved through consultation within
thirty (30) days after one Party delivers written notice to the Other Parties requesting the commencement of consultation, then
any Party may submit the dispute to the China International Economic and Trade Arbitration Commission for arbitration, and
the arbitration shall be conducted in Hangzhou according to the said commission’s arbitration rules then in force. The arbitration
award shall be final and binding on all Parties and cannot be appealed. The arbitration costs shall be borne by the losing party
unless the arbitration award provides otherwise. When any dispute occurs and when any dispute is under arbitration, except the
matter  under  disputes,  the  Parties  shall  continue  to  exercise  their  other  rights  and  perform  their  other  obligations  under  this
Agreement.

28

10.5

10.6

10.7

10.8

Confidentiality. Each of the Parties shall not, and shall cause its respective Affiliates, shareholders, directors, senior officers,
employees, representatives or agents not to, directly or indirectly disclose the existence of this Agreement or any information
related  to  the  transactions  contemplated  hereunder  (including  any  information  obtained  by  the  Party  during  the  course  of  the
negotiation and execution of this Agreement), unless (a) it has obtained the prior written consent of the non-disclosing Parties,
or (b) such information is required to be disclosed by the applicable laws and is only disclosed to the extent necessary to comply
with the applicable laws or any regulations or policies of any stock exchange, provided, however that the disclosing Party shall,
within a reasonable time before the disclosure or submission of the relevant information, seek opinions of the Other Parties on
such  disclosure  and  submission,  and  that  if  required  by  the  Other  Parties,  the  disclosing  Party  shall  seek  for  confidential
treatment of the disclosed or submitted information to the extent possible. Before the Closing, without the written consent of the
Investors, the Company shall not disclose the investment that the Investors intend to make to the Company according to this
Agreement  to  the  public  through  press  conferences,  industry  or  professional  media,  marketing  materials  or  other  means;
however, each Investor has the right to disclose to the investors of its fund or its consultant in a non-public manner about the
investment  that  such  Investor  intends  to  make  in  the  Company  under  this  Agreement,  provided  that  the  recipients  shall  have
agreed to maintain the confidentiality of the relevant confidential information. Notwithstanding the foregoing, I-Mab 天境生物,
I-Mab  HK’s  parent  company,  being  a  company  listed  in  the  United  States,  shall  have  the  right  to  disclose  the  Company’s
financing information in accordance with the requirements of U.S. securities laws without the need for separately obtaining the
Parties’  consent.  After  the  Closing,  each  of  the  Company,  I-Mab  HK  and  the  Investors  shall  have  the  right  to  disclose  the
existence of the Investors’ investment in the Company to third parties or the public; provided, however, the Investors shall seek
the opinions of I-Mab HK when disclosing information related to the Company’s investment matters, with a view to comply
with the information disclosure requirements under the U.S. securities laws.

Severability. The obligations under this Agreement shall be regarded as separate obligations and be independently enforceable.
When one or more obligations of this Agreement are unenforceable, the enforceability of other obligations shall not be affected.
If this Agreement is not enforceable against any Party, the enforceability of this Agreement among the Other Parties shall not be
affected.  If  one  or  more  of  the  provisions  of  this  Agreement  are  found  to  be  invalid,  illegal  or  unenforceable  in  any  respect
according to any applicable law, or a government agency requests amendment of one or more provisions of this Agreement, the
validity, legality and enforceability of the remaining provisions shall not be affected or damaged in any way. The Parties shall
endeavor to replace these invalid, illegal or unenforceable provisions with valid provisions through sincere consultations, and
the  economic  effects  of  such  valid  provisions  shall  be  as  similar  as  possible  to  those  of  the  invalid,  illegal  or  unenforceable
provisions.

Entire  Agreement.  This  Agreement  (including  the  other  Transaction  Documents  and  any  other  documents  referred  to  or
contemplated  hereunder  or  thereunder)  constitutes  the  entire  agreement  among  the  Parties  with  regard  to  the  subjects  hereof,
and supersedes any other agreements or intentions previously reached by the Parties on the same subjects.

Assignment. Prior to completion of its capital contribution obligations, an Investor may assign its rights and obligations under
this  Agreement  to  its  Affiliates,  and  such  assignment  does  not  require  prior  consent  of  Other  Parties  or  the  Company.  After
completion  of  its  capital  contribution  obligations,  an  Investor  has  the  right  to  assign  its  rights  and  obligations  under  this
Agreement to any third party along with the sale or transfer (if any) of its equity in the Company to such third party; provided,
however, such equity transfer shall be subject to the other Investors’ right of first refusal under the Shareholders Agreement.
Notwithstanding  anything  to  the  contrary  herein,  after  completion  of  its  capital  contribution  obligation,  any  Investor  may
transfer its then effective rights and obligations under the Agreement to its Affiliates along with the sale or transfer (if any) of its
equity in the Company, which transfer or assignment shall not be subject to any other shareholders’ consent, right of first offer,
right of first refusal, co-sale rights or similar rights. Except the foregoing, without the prior written consent of each other Party,
no Party shall assign its rights or obligations under this Agreement; any assignment without the Other Parties’ consent shall be
invalid.

29

10.9

10.10

Counterparts. This Agreement is written in Chinese. This Agreement shall be signed in 20 original copies. Each Party shall
hold one (1) original copy, and the remaining original copies shall be held by the company. Each copy of this Agreement shall
be equally effective.

Priority. If, in order to request any government agency to carry out any specific act, separate agreements in connection with the
transactions  contemplated  hereunder  (including  but  not  limited  to,  the  Investment  Agreement,  the  Company’s  articles  of
association  or  amendments  to  the  articles  of  association,  as  may  be  amended  from  time  to  time,  etc.)  have  to  be  signed  in
accordance with the standard templates or requirements of the government agency, this Agreement shall control over any such
agreements, and such agreements shall only be used to request the government agency to implement the specific act, and shall
not be used to establish or as an evidence of any rights or obligations of the relevant parties on matters that may be stipulated in
such agreements.

(No text below)

30

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Company:

I-Mab Biopharma (Hangzhou) Co., Ltd.
(Seal)

/s/Lili Qian
Name: Lili Qian
Position: General Manager

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

I-Mab Shanghai:

I-Mab Biopharma Co., Ltd.
(Seal)

/s/ JINGWU ZHANG ZANG
Name: JINGWU ZHANG ZANG
Position: CHAIRMAN

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Pingtan Wenzhou Ruihe Investment Partnership (Limited Partnership)
(Seal)

/s/ Shuguang Wang
Name: Shuguang Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Huzhou Jingyun Equity Investment Partnership (Limited Partnership)
(Seal)

/s/ Danjun Kong
Name: Danjun Kong
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Pingtan Wenzhou Ruizhi Investment Partnership (Limited Partnership)
(Seal)

/s/ Shuguang Wang
Name: Shuguang Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Jiaxing Hongtong Investment Partnership (Limited Partnership)
(Seal)

/s/ Haifang Wang
Name: Haifang Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Qingdao Zhongou Industry Investment Partnership (Limited Partnership)
(Seal)

/s/ Yuanyi Ji
Name: Yuanyi Ji
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Qingdao Haiyang Innovation Investment Co., Ltd
(Seal)

/s/ Bingbing Liu
Name: Bingbing Liu
Position: Delegated Representative of Legal Representative

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Ningbo Yijing Management Partnership (Limited Partnership)
(Seal)

/s/ Lili Qian
Name: Lili Qian
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Ningbo Hangjing Management Partnership (Limited Partnership)
(Seal)

/s/ Lei Wang
Name: Lei Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Investor:

Ningbo Zhengjing Management Partnership (Limited Partnership)
(Seal)

/s/ Daling Zhang
Name: Daling Zhang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

I-MAB BIOPHARMA HONGKONG LIMITED

/s/ JINGWU ZHANG ZANG
Name: JINGWU ZHANG ZANG
Position: DIRECTOR

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Hangzhou Yijing Biotech Partnership (Limited Partnership)
(Seal)

/s/ Lili Qian
Name: Lili Qian
Position: Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Hangzhou Lanjing Biotech Partnership (Limited Partnership)
(Seal)

/s/ Lili Qian
Name: Lili Qian
Position: Executive Affairs Partner

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Lili Qian
Lili Qian

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Zhengsong Zhang
Zhengsong Zhang

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Yunfei Zhang
Yunfei Zhang

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Lihong Lou
Lihong Lou

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Kai Zhou
Kai Zhou

Signature Page to Investment Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Fang Yin
Fang Yin

Signature Page to Investment Agreement

Schedule 1:

Amended Articles of Association

Schedule 1

Schedule 2:

Shareholding Structures of the Company

Immediately Before the Closing of This Capital Increase

Schedule 3

Schedule 3:

Closing Certificate

Schedule 3

Schedule 4:

List of Key Employees

Schedule 4

Schedule 5:

Disclosure Schedules

Schedule 5

Exhibit 4.24

English translation

I-Mab Biopharma (Hangzhou) Co., Ltd.

_________________________________________________________________

Shareholders Agreement

_________________________________________________________________

July 16, 2022

Table of Contents

Article 1

Article 2

Article 3

Article 4

Article 5

Article 6

Article 7

Article 8

Information and Inspection Rights

Equity Lockup

Investors’ Preferred Rights

Corporate Governance

Dissolution of Act in Concert

Liability for Breach of Contract; Indemnification

Effectiveness, Amendment and Termination of the Agreement

Miscellaneous

Schedule 1

Shareholding Structure Immediately After Completion of the Transactions

Schedule 2

List of Competitors of the Company

- 5 -

- 6 -

- 7 -

- 15 -

- 17 -

- 18 -

- 18 -

- 19 -

SHAREHOLDERS AGREEMENT

This SHAREHOLDERS AGREEMENT (this “Agreement”) is entered into in the PRC on July 16, 2022 by and among the following
parties:

1.

2.

3.

4.

5.

6.

7.

8.

9.

I-Mab Biopharma (Hangzhou) Co., Ltd., a limited liability company legally established and existing in accordance with the
PRC laws, whose unified social credit code is 91330100MA2GNANB49 (the “Company”);

I-Mab Biopharma Co., Ltd.,  a  limited  liability  company  legally  established  and  existing  in  accordance  with  the  PRC  laws,
whose unified social credit code is 91310115MA1K3G0E1F (“I-Mab Shanghai”);

I-MAB BIOPHARMA HONGKONG LIMITED, a company limited by law established in accordance with the laws of the
Hong Kong Special Administrative Region of the PRC, whose registration number is 2400410 (“I-Mab HK”);

Hangzhou Fushi Investment Management Partnership (Limited Partnership) (杭州赋实投资管理合伙企业(有限合伙)), a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330102MA2AYYBD4Q (“Fushi Capital”);

Shenzhen Tsingsong Shengrui Investment Partnership (Limited Partnership) (深圳市青松晟睿投资合伙企业(有限合伙)),
a  limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91440300MA5FYAQD4R (“Tsingsong Shenzhen”);

Nanjing Tsingsong Healthcare Investment Partnership (Limited Partnership) (南京清松医疗健康产业投资合伙企业(有
限合伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit
code is 91320113MA21DH7W5M (“Tsingsong Nanjing”);

Hangzhou Heda Biotech Investment Partnership (Limited Partnership) (杭州和达生物医药创业投资合伙企业(有限合
伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit code is
91330101MA2AXNXM21 (“Heda Investment”);

Xiamen Ronghui Derong Equity Investment Partnership (Limited Partnership) (厦门融汇德润股权投资合伙企业(有限
合伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit code
is 91350211MA34071K50 (“Ronghui Derong”);

Ningbo Yanyuan Yaoshang Chanrong Equity Investment Partnership (Limited Partnership) (宁波燕园姚商产融股权投
资合伙企业(有限合伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified
social credit code is 91330281MA2AF01K1J (“Yanyuan Chanrong”);

- 1 -

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

Ningbo Yanchuang Yaoshang Yangming Investment Partnership (Limited Partnership) (宁波燕创姚商阳明创业投资合
伙企业(有限合伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified
social credit code is 91330281MA2H6M3084 (“Yanchuang Yangming”);

Jiangsu Yanyuan Dongfang Investment Partnership (Limited Partnership) (江苏燕园东方创业投资合伙企业(有限合伙)),
a  limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91320300MA1UQURD8F (“Yanyuan Dongfang”);

Ningbo Rongshun Yanyuan Investment Partnership (Limited Partnership) (宁波荣舜燕园投资合伙企业(有限合伙)), a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330201MA2AJPJ617 (“Rongshun Yanyuan”);

Ningbo Yanyuan Innovation Investment Partnership (Limited Partnership) (宁波燕园创新创业投资合伙企业(有限合
伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit code is
91330201340622519X (“Yanyuan Innovation”);

Zhuzhou Guochuang Junyao Investment Partnership (Limited Partnership) (株洲市国创君垚投资合伙企业(有限合伙)),
a  limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91430200MA4RGB014A (“Guochuang Junyao”);

Ningbo Hanhai Qianyuan Equity Investment Partnership (Limited Partnership) (宁波瀚海乾元股权投资基金合伙企业
(有限合伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit
code is 91330212MA2GW05H0A (“Hanhai Qianyuan”);

Hangzhou Haibang Yigu Investment Partnership (Limited Partnership) (杭州海邦羿谷创业投资合伙企业(有限合伙)), a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330101MA2B02RD4R (“Haibang Yigu”);

Jialiang Shan, a Chinese citizen, whose ID number is ***;

Zhejiang Silu Industry Investment Fund Partnership (Limited Partnership) (浙江丝路产业投资基金合伙企业(有限合
伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit code is
91330101MA28WHW02L (“Silu Fund”);

Viva  Biotech  (Shanghai)  Ltd.  ( 维 亚 生 物 科 技 ( 上 海 ) 有 限 公 司 ),  a  limited  company  legally  established  and  existing  in
accordance with the PRC laws, whose unified social credit code is 91310115677881436W (“Viva Biotech”);

Tianjin Huatian Enterprise Management Consultation Limited Partner (Limited Partner) (天津华天企业管理咨询合伙
企业(有限合伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social
credit code is 91120118MA0727C0X0 (“Huatian Enterprise Management”);

Qingdao Xinneng Property Management Co., Ltd., a limited liability company legally organized and existing in accordance
with the PRC laws, whose unified social credit code is 91330100MA2GNANB49 (“Qingdao Xinneng”; together with Fushi
Capital,  Tsingsong  Shenzhen,  Tsingsong  Nanjing,  Heda  Investment,  Ronghui  Derong,  Yanyuan  Chanrong,  Yanchuang
Yangming,  Yanyuan  Dongfang,  Rongshun  Yanyuan,  Yanyuan  Innovation,  Guochuang  Junyao,  Hanhai  Qianyuan,  Haibang
Yigu, Jialiang Shan, Silu Fund, Viva Biotech, Huatian Enterprise Management, collectively referred to as the “Series A Round
Investors”);

- 2 -

22.

23.

24.

25.

26.

27.

28.

29.

30.

31.

32.

Lili Qian, a Chinese citizen, whose ID number is ***;

Zhengsong Zhang, a Chinese citizen, whose ID number is ***;

Yunfei Zhang, a Chinese citizen, whose ID number is ***;

Lihong Lou, a Chinese citizen, whose ID number is ***;

Kai Zhou, a Chinese citizen, whose ID number is ***;

Fang Yin, a Chinese citizen, whose ID number is *** (together with Lili Qian, Zhengsong Zhang, Yunfei Zhang, Lihong Lou
and Kai Zhou, collectively referred to as the “Management”);

Hangzhou  Yijing  Biotech  Partnership  (Limited  Partnership)  ( 杭 州 伊 境 生 物 科 技 合 伙 企 业 ( 有 限 合 伙 )),  a  limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330100MA2HY0AEXX (the “Management Holdco”);

Hangzhou  Lanjing  Biotech  Partnership  (Limited  Partnership)  ( 杭 州 阑 境 生 物 科 技 合 伙 企 业 ( 有 限 合 伙 )),  a  limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330100MA2HY07T3Q  (the  “ESOP  Holdco”;  together  with  I-Mab  HK,  the  Series  A  Round  Investors,  the  Management
Holdco, collectively referred to as the “Existing Shareholders”);

Pingtan Wenzhou Ruihe Investment Partnership (Limited Partnership) ( 平潭文周瑞和投资合伙企业( 有限合伙)), a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91350128MA8TQEYH30 ( “Wenzhou Ruihe”);

Hangzhou Jingyun Equity Investment Partnership (Limited Partnership) (湖州静耘股权投资合伙企业(有限合伙)), a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330501MA2JL1G07W ( “Huzhou Jingyun”);

Pingtan Wenzhou Ruizhi Investment Partnership (Limited Partnership) (平潭文周瑞致投资合伙企业(有限合伙)), a
limited  partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91350128MA8TQFP85C ( “Wenzhou Ruizhi”);

- 3 -

33.

34.

35.

36.

37.

38.

Jiaxing Hongtong Investment Partnership (Limited Partnership) (嘉兴鸿桐创业投资合伙企业( 有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330402MA7GF15T8Q ( “Jiaxing Hongtong”);

Qingdao Zhongou Industry Investment Partnership (Limited Partnership) (青岛中欧创新产业投资基金合伙企业(有限合
伙)), a limited partnership legally established and existing in accordance with the PRC laws, whose unified social credit code is
91370202MA3WNGTEXK ( “Qingdao Zhongou”);

Qingdao Haiyang Innovation Investment Co., Ltd. (青岛海洋创新产业投资基金有限公司), a limited liability company
legally established and existing in accordance with the PRC laws, whose unified social credit code is 91370282MA3N5L323R (
“Qingdao Haiyang Innovation”);

Ningbo Yijing Management Partnership (Limited Partnership) (宁波市伊境企业管理合伙企业(有限合伙)),  a  limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330205MA7JC3H09J ( “Ningbo Yijing”);

Ningbo Hangjing Management Partnership (Limited Partnership) (宁波市杭境企业管理合伙企业(有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330205MA7HXY278M ( “Ningbo Hangjing”);

Ningbo Zhengjing Management Partnership (Limited Partnership) (宁波市正境企业管理合伙企业(有限合伙)), a limited
partnership  legally  established  and  existing  in  accordance  with  the  PRC  laws,  whose  unified  social  credit  code  is
91330205MA7GQY2K5F  (  “Ningbo  Zhengjing”,  together  with  Ningbo  Zhengjing,  Wenzhou  Ruihe,  Huzhou  Jingyun,
Wenzhou  Ruizhi,  Jixing  Hongtong,  Qingdao  Zhongou,  Qingdao  Haiyang  Innovation,  Ningbo  Yijing,  Ningbo  Hangjing,  the
“Series B Round Investor”);

(The Series B Round Investor and the Series A Round Investors are collectively referred to as the “Investors”)

The above parties are hereinafter collectively referred to as the “Parties”. When any party hereto is referred to as a “Party”, the other
parties hereto will be referred to as the “Other Parties”.

WHEREAS:

1.

The  Company  is  a  limited  liability  company  legally  established  and  existing  in  accordance  with  PRC  laws,  which  was
established on June 26, 2019. The Company’s unified social credit code is 91330100MA2GNANB49, its registered capital is
USD$30 million, and its business scope is: technology development, technology services, technology consulting, and transfer
of results: biotechnology, pharmaceutical technology (with respect to the above, except for the development and application of
human stem cells, gene diagnosis and treatment technology); production: drugs; drugs, pharmaceutical intermediates, Category
I  medical  device  wholesale  and  import  and  export  business  (except  for  those  subject  to  special  access  control  regulations
stipulated by the state).

- 4 -

2.

3.

On  September  15,  2020,  the  Existing  Shareholders,  the  Management  and  the  Company  except  for  Qingdao  Xinneng  entered
into that certain Equity Transfer and Investment Agreement (the “Series A Round Investment Agreement”). According to the
Series A Round Investment Agreement, the Series A Round Investors collectively acquired 40% of the equity of the Company
from I-Mab HK, corresponding to the unpaid registered capital of the Company in the amount of USD$12 million, and invest a
total amount in RMB equivalent to USD$120 million (collectively referred to as the “Series A Round Investors Investment
Amount”; the equity acquired by the Series A Round Investor in such transactions is the “Series A Round Equity”)  to  the
Company after acquiring such equity; the Management acquired, through the Management Holdco, 10% of the equity of the
Company from I-Mab HK, corresponding to the unpaid registered capital of the Company in the amount of USD$3 million, and
invest  a  total  amount  in  RMB  equivalent  to  USD$3  million  to  the  Company  after  acquiring  such  equity;  the  ESOP  Holdco
acquired 5% of the equity of the Company from I-Mab HK, corresponding to the unpaid registered capital of the Company in
the amount of USD$1.5 million, which equity will be used to implement the Company’s employee equity incentive plan; I-Mab
HK  transferred  to  the  Company  the  Intangible  Assets  agreed  in  the  Series  A  Round  Investment  Agreement  with  a  total
valuation  of  USD$105  million  and  pay  to  the  Company  USD$30  million  in  cash,  so  as  to  complete  its  capital  contribution
obligations with respect to the 45% remaining equity of the Company held by I-Mab HK (corresponding to registered capital of
the  Company  in  the  amount  of  USD$13.5  million).  On  the  same  day,  the  aforementioned  Parties  signed  a  Shareholders
Agreement (the “Series A Round Shareholders Agreement”). On January 13, 2021, Qingdao Xinneng acquired 0.25% of the
equity of the Company from Huatian Enterprise Management, corresponding to registered capital of USD$75,000, such equity
is the Series A Round Equity.

On  the  same  day  as  this  Agreement  is  signed,  the  Parties  jointly  signed  an  Investment  Agreement  (the  “Investment
Agreement”). According to the Investment Agreement, the Series B Round Investor agreed to subscribe for the new registered
capital of the Company by RMB¥292.43 million (the “Series B Round Investor Investment Amount”, and Series A Round
Investors  Investment  Amount  are  collectively  referred  to  as  the  “Investors  Investment  Amount”)  for  the  Company’s  new
registered  capital  of  USD$344.5758  million.  The  aforementioned  transactions  are  collectively  referred  to  as  the
“Transactions”, in which the equity acquired by the Series B Round Investor is “Series B Round Equity”; the Series B Round
Equity and the Series A Round Equity are collectively referred to as “Investors’ Equity”. Immediately after the completion of
the Transactions, the Company’s shareholding structure is reflected in Schedule 1.

THEREFORE,  in  order  to  further  stipulate  the  rights  and  obligations  of  the  shareholders  of  the  Company  after  completion  of  the
Transactions, the Parties have entered into the following agreement (unless otherwise provided in this Agreement, the terms used in this
Agreement shall have the same meaning as that of the terms in the Investment Agreement):

Article 1

Information and Inspection Rights

1.1

Information and Inspection Rights. The Parties agree that, as long as an Investor holds equity in the Company, the Investor or
person  designated  by  the  Investor  in  writing  shall  have  the  right,  to  (a)  inspect  the  assets  and  account  capital  flow  records,
financial  statements,  financial  books,  financial  documents  and  other  related  documents  of  the  Company  and  its  Subsidiaries
during the Company’s normal office hours, or (b) communicate with directors, supervisor(s), senior officers, key employees,
employees  of  the  Company,  and  professional  service  organizations  engaged  by  the  Company  such  as  auditors  and  legal
consultants on affairs of the Company; in each case, provided that notice is delivered to the Company five (5) Working Days in
advance.  At  the  same  time,  the  Company  shall  provide  such  Investor  with  the  following  information  with  respect  to  the
Company and its Subsidiaries:

- 5 -

1.2

2.1

(1)

(2)

(3)

(4)

(5)

Within twenty-one (21) days after the end of each fiscal month, provide Investors with unaudited monthly financial
statements;

Within one hundred and twenty (120) days after the end of each fiscal year, provide Investors with annual financial
statements and annual audit report audited by an auditor acceptable to the Investors;

Within thirty (30) days before the commencement of each fiscal year, provide Investors with the financial budget for
such fiscal year;

Provide copies of documents and other materials given to any other shareholders;

Other information and materials reasonably requested by the Investors.

The aforesaid financial statements shall be prepared in accordance with China’s generally accepted accounting principles, and
shall include balance sheets, profit and loss statements, and cash flow statements.

The Investors shall have the right to inspect the company and its subsidiaries.

Termination. The above-mentioned information and inspection right will terminate upon completion of the Qualified IPO (as
defined in the Investment Agreement).

Article 2

 Equity Lockup

I-Mab HK, the Management, the Management Holdco and the ESOP Holdco hereby agree that before the Qualified IPO of the
Company  and  as  long  as  the  Investors  still  hold  equity  in  the  Company,  without  consent  of  the  Majority  Investors  (i.e.,
Investors whose total proportion of subscribed capital among each Investor exceeds two-thirds of the total subscribed capital
contribution  of  all  Investors,  the  same  hereinafter)  and  the  Investors  who  have  the  rights  to  appoint  Investors  Directors  in
accordance with the provisions of Article 4.1 of this Agreement, none of I-Mab HK, the Management, the Management Holdco
and  the  ESOP  Holdco  shall  dispose  of  any  equity  of  the  Company  directly  or  indirectly  held  by  them  through  transfer,  gift,
pledge or otherwise, or create any incumbrance on such equity in favor of any third party. However, (i) I-Mab HK may transfer
equities  in  the  Company  to  its  Affiliated  Company(ies),  provided  that  such  equity  transfer  shall  not  affect  I-Mab  HK’s
obligations  hereunder.  For  the  avoidance  of  doubt,  in  such  case,  the  equity  transfer  shall  not  take  effect  unless  and  until  the
relevant  Affiliated  Company(ies)  of  I-Mab  HK  have  agreed  to  assume  all  covenants,  representations,  obligations  and
responsibilities which are owed by I-Mab HK to the Investors hereunder; (ii) I-Mab HK shall not be subject to the Articles 2.1,
3.2 and 3.3 of this Agreement for the purpose of fulfilling its obligation under Article 4.3 (10) of the Investment Agreement to
reduce  its  equity  in  the  Company  to  within  30%  (to  the  extent  that  the  equity  in  the  Company  is  sufficiently  diluted  at  that
time). Notwithstanding this paragraph, for the avoidance of ambiguity, I-Mab HK shall not directly or indirectly transfer all or
part of the company’s  equity  to  a  competitor  of  the  Company;  (iii)  in  the  event  of  an  increase  in  the  management  team,  an
existing Management may transfer equity to a newly joined member of the management team. For the avoidance of doubt, in
such case, the equity transfer between the Management members shall not take effect unless and until the new Management
member(s)  have  agreed  to  subject  themselves  to  the  provisions  of  this  Article  2.1  and  have  executed  relevant  joinder
agreement; (iv) for purposes of implementing the ESOP or other incentive arrangement that may be approved by the Investors
Directors,  the  grantee(s)  of  incentives  may  be  granted  option  or  may  accept  transfer  of  equity;  (v)  any  member  of  the
Management may exercise the repurchase rights in accordance with Article 2.2, and (vi) the transfer of equity in the Company
by I-Mab HK for the purpose of implementation of a repurchase under Article 3.5 (the foregoing are collectively referred to as
the “Exempt Transfer”).  The  Exempt  Transfer  shall  not  be  subject  to  the  Company’s,  the  Investors’  or  other  shareholders’
consent, the right of first refusal, the co-sale rights or similar rights. For the avoidance of doubt, a change in shares at the level
of  I-Mab  天 境 生 物   (NASDAQ:  IMAB;  hereinafter  referred  to  as  “I-Mab”),  the  parent  company  of  I-Mab  HK,  is  not
considered an indirect transfer of the equity in the company.

- 6 -

2.2

The  Parties  hereby  acknowledge  and  agree  that  the  Share  of  Equity  held  by  each  member  of  Management  through  the
Management  Holdco  shall  be  restricted  equity.  After  each  member  of  the  Management  pays  in  an  installment  of  capital
contribution for his/her Share of Equity in accordance with the provisions of Article 4.3 (8) of the Series A Round Investment
Agreement, such paid-in portion of Share of Equity shall be vested one (1) year from the relevant paid-in date (however, if the
date on which such member of the Management paid in the relevant installment is earlier than the due date of such installment
as provided in Article 4.3 (8) of the Series A Round Investment Agreement, the relevant portion of Share of Equity shall be
vested one (1) year from such due date as provided in Article 4.3 (8) of the Series A Round Investment Agreement instead) (for
the avoidance of doubt, the Share of Equity, after being vested, shall still be subject to the provisions of Article 2.1 hereof), till
all  portion  of  the  Share  of  Equity  is  vested.  However,  upon  a  successful  Qualified  IPO  of  the  Company  or  occurrence  of  a
Deemed Liquidation Event, then all unvested Share of Equity held by the Management shall be immediately and fully vested.
If,  before  the  Share  of  Equity  held  by  a  member  of  the  Management  is  fully  vested,  (a)  such  member  of  the  Management
departs for any reason, or (b) the Board of Directors has determined that there is a material violation of labor contract, or non-
compete and intellectual property assignment agreement by such member of the Management, or material failure to perform
his/her  duties,  or  other  material  fault  of  such  member  of  the  Management,  and  therefore  resolves  to  forfeit  his/her  Share  of
Equity, then other members of Management shall have the pro rata rights to purchase all Share of Equity directly or indirectly
held by such member of the Management who departed or committed a material fault, which pro rata rights are in proportion to
the Share of Equity then held by the relevant members of the Management. The purchase price shall be calculated based on the
amount actually paid by the selling member of Management plus interest accrued at an annualized simple interest of 5%. Upon
occurrence  of  aforesaid  termination  of  employment  or  material  fault  of  any  Management  member  before  his/her  Share  of
Equity is fully vested, if the other Management members fail to exercise their repurchase rights or fail to fully exercise their pro
rata  repurchase  rights  in  proportion  to  their  respective  Share  of  Equity,  then  Lili  Qian  and  Zhengsong  Zhang  shall  be
responsible for repurchasing Share of Equity of the said Management member that are not repurchased. For the avoidance of
doubt,  in  such  case,  the  other  shareholders  of  the  Company  do  not  have  any  right  of  first  refusal,  co-sale  right  or  any  other
similar rights with respect to such purchase.

2.3

The Parties hereby acknowledge and agree that any equity held by the ESOP Holdco in the Company shall only be used for
grant of equity incentives under equity incentive plan in accordance with the decision of the Board of Directors, and unless for
the purpose of implementing the equity incentive plan and approved by resolution of the Board of Directors, the ESOP Holdco
shall  not  directly  or  indirectly  transfer,  pledge,  create  incumbrance  or  otherwise  dispose  of  any  equity  held  by  it  in  the
Company.

3.1

Pre-emptive Rights.

Article 3

 Investors’ Preferred Rights

(1)

From the Closing Date of the Transactions and prior to the Qualified IPO of the Company, if the Company intends to
increase  its  registered  capital  or  issue  new  shares  in  any  form,  arrangement  shall  be  made  in  accordance  with
provisions  of  this  Agreement  and  the  Company’s  articles  of  association,  and  the  Investors  shall  have  the  right  to
subscribe for the Company’s new registered capital or new shares at the same price and conditions up to a percentage
of such new registered capital or new shares equal to its then shareholding percentage in the Company (“Pre-emptive
Rights”).

- 7 -

(2)

(3)

(4)

(5)

If  the  Company  intends  to  increase  registered  capital  or  issues  new  shares  in  any  form,  the  Company  shall  serve  a
written notice (“Capital Increase Notice”) to all Investors at least fifteen (15) Working Days in advance. The Capital
Increase  Notice  shall  include  the  price  and  conditions  of  the  plan  to  increase  registered  capital  or  issue  new  shares
(including the amount/number of new registered capital/shares), and at the same time, issue an offer to invite Investors
to subscribe for the Company’s new registered capital or new shares at such price and conditions.

An Investor shall notify the Company in writing within ten (10) Working Days after receipt of the above offer (the
“Participation Period”) whether to exercise its Pre-emptive Rights. If the Investor decides to exercise its Pre-emptive
Rights,  a  written  commitment  to  exercise  the  Pre-emptive  Rights  shall  also  be  made,  in  which  the  amount  to  be
exercised shall be indicated.

Within ninety (90) Working Days after the expiration date of the above-mentioned Participation Period (if applicable,
as the case may be), the Company may enter into a corresponding capital increase contract or similar agreement for
the remaining part of the proposed new registered capital or proposed new shares which are not subject to the above-
mentioned Pre-emptive Rights or against which no Pre-emptive Rights are exercised; provided, however, such capital
increase contract or similar agreement cannot stipulate terms and conditions that are more favorable than those stated
in  the  Capital  Increase  Notice.  If  the  Company  fails  to  enter  into  a  capital  increase  contract  or  a  similar  agreement
within ninety (90) Working Days, then the remaining part of the above-mentioned new registered capital or new shares
shall again be subject to the Pre-emptive Rights in accordance with the provisions of this Article 3.1.

This Article 3.1 does not apply to any capital increase for purposes of implementation of employee equity incentive
plans or other incentive plan approved by the Investors Directors, capital increase for purposes of adjustments under
Article  3.6,  nor  capital  increase  allocated  to  all  shareholders  on  a  pro  rata  basis  for  realization  of  profits  or  for
converting capital reserve to registered capital as approved by resolution of the Shareholders.

3.2

Right of First Refusal.

(1)

Subject  to  the  provisions  of  Article  2  of  this  Agreement,  if  any  shareholder  of  the  Company  (the  “Selling
Shareholder”) wishes to transfer any equity of the Company directly or indirectly held by it (the “Offered Equity”) to
any third party (the “Proposed Transferee”), the Selling Shareholder shall issue a written notice to the Company and
the Investors (the “Transfer Notice”), indicating its transfer intention, transfer price and conditions, and identity of the
Proposed Transferee. The Investors (except for the Investor who is a Selling Shareholder) have the right of first refusal
to purchase all or part of the Offered Equity at the same price and conditions with priority over other shareholders of
the Company and the Proposed Transferee, in proportion to the amount of equity then held by them in the Company
(the  “Right  of  First  Refusal”).  The  Investors  have  the  right  to,  within  ten  (10)  Working  Days  after  receiving  the
Transfer  Notice  (the  “RoFR  Exercise  Period”),  respond  in  writing  to  the  Company  and  the  Selling  Shareholder
requesting to exercise the Right of First Refusal. If the Investors have responded in writing requesting to exercise the
Right  of  First  Refusal  within  the  RoFR  Exercise  Period,  such  Investors  have  the  right  to  purchase  all  or  part  of  the
Offered Equity at the same price and conditions with priority over other shareholders of the Company other than the
Investors and any third parties.

- 8 -

(2)

(3)

Within ninety (90) Working Days after the expiration of above-mentioned RoFR Exercise Period (if applicable, as the
case may be), the Selling Shareholder may enter into a corresponding equity transfer contract for the remaining part (if
any)  of  the  Offered  Equity  which  is  not  subject  to  the  above-mentioned  Right  of  First  Refusal  or  against  which  no
Right of First Refusal is exercised; provide, however, the equity transfer contract cannot stipulate terms and conditions
that are more favorable than the prices and conditions stated in the Transfer Notice. If the Selling Shareholder fails to
enter  into  an  equity  transfer  contract  within  the  above-mentioned  ninety  (90)  Working  Days’  period,  then  the
remaining part of the above-mentioned Offered Equity shall again be subject to the Right of First Refusal under this
Article 3.2.

For  the  avoidance  of  any  doubt,  the  Parties  confirm  that  transfer  equity  held  by  any  Investor  in  the  Company  to  its
Affiliates is not subject to the Company’s or other shareholders’ consent, the Right of First Refusal, the co-sale rights
or  similar  rights.  Without  the  prior  written  consent  of  I-Mab  HK,  each  shareholder  shall  not,  and  shall  cause  its
respective Affiliates not to, directly or indirectly transfer all or any part of equity of the Company to any person who
directly  competes  with 
the  Company’s  principal  business  (i.e.,  early  stage  discovery,  development  and
commercialization  of  innovative  biological  drugs  in  the  field  of  immune  diseases)  (the  “Competitors  of  the
Company”;  the  number  of  Competitors  of  the  Company  shall  be  not  greater  than  20).  The  initial  list  of  the
Competitors of the Company is set forth in Schedule 2  hereto,  which  list  may  be  updated  by  approval  of  the  Board
(including consent of both Investors Directors).

(4)

This Article 3.2 does not apply to any Exempt Transfer listed in Article 2.1.

3.3

Co-Sale Right.

(1)

Subject  to  Article  2.1  hereof,  when  I-Mab  HK  (including  any  Affiliate  of  I-Mab  HK  who  acquires  equity  of  the
Company through Exempt Transfer pursuant to Article 2.1 (i) hereof) and/or any the Management member and/or the
Management  Holdco  and/or  the  ESOP  Holdco  propose  to  transfer  any  equity  of  the  Company  held  by  them,  if  any
Investor  decides  not  to  exercise  the  Right  of  First  Refusal  specified  in  Article  3.2  of  this  Agreement,  such  Investor
shall have the right to, within five (5) Working Days after expiration of the First RoFR Exercise Period, respond in
writing to the Company and I-Mab HK and/or any Management member and/or the Management Holdco and/or the
ESOP Holdco (as the Selling Shareholder(s)) requesting to participate in the sale of equity of the Company by such
Selling Shareholder(s) under the same conditions of sale (the “Co-Sale Rights”). Except for the situation described in
Article 3.3 (2), the amount of equity that any Investor who intends to exercise the Co-Sale Rights by participating in
the  sale  shall  not  exceed  the  product  of  the  following:  (i)  the  quantity  of  the  Offered  Equity,  multiplied  by  (ii)  a
fraction, the numerator of which is the amount of equity of the Company held by the Investor who intends to exercise
the Co-Sale Rights, the denominator of which is the total number of equity of the Company held by all Investors of the
same  round  who  intend  to  exercise  the  Co-Sale  Rights  and  the  amount  of  equity  of  the  Company  held  by  the  said
Selling Shareholder(s) at that time. The said Selling Shareholder(s) shall procure the Proposed Transferee to agree to
the above-mentioned co-sale by the Investors; if the Proposed Transferee does not agree to the above-mentioned co-
sale, the said Selling Shareholder(s) shall not transfer Offered Equity to the Proposed Transferee unless prior written
consent of the Investors who intend to exercise the Co-Sale Rights is obtained or the said Selling Shareholder(s) agree
to  purchase  the  equity  to  be  sold  by  the  Investors  who  intend  to  exercise  the  Co-Sale  Rights  at  the  same  price  and
conditions.

- 9 -

(2)

Subject to other terms of this Agreement, when I-Mab HK (including any Affiliate of I-Mab HK who acquires equity
of  the  Company  through  Exempt  Transfer  pursuant  to  Article  2.1  (i)  hereof)  and/or  the  Management  and/or  the
Management Holdco and/or the ESOP Holdco have already cumulatively sold equity held by them in the Company in
excess of 6% of the then total registered capital of the Company, and I-Mab HK and/or the Management and/or the
Management  Holdco  and/or  the  ESOP  Holdco  wish  to  further  sell  equity  directly  or  indirectly  held  by  them  in  the
Company to any Proposed Transferee, and any Investor decides not to exercise its Right of First Refusal as specified in
Article 3.2 of this Agreement, then such Investor has the right to, within five (5) Working Days after expiration of the
RoFR  Exercise  Period,  respond  in  writing  to  the  Company  and  I-Mab  HK  and/or  the  Management  and/or  the
Management Holdco and/or the ESOP Holdco (as the Selling Shareholder(s)), requesting to sell any part or all equity
of the Company held by it to the Proposed Transferee under the same conditions of sale (the “Full Co-Sale Rights”).
If  the  Proposed  Transferee  does  not  agree  to  purchase  any  part  or  all  equity  that  any  Investor  requests  to  sell  by
exercising  the  Fully  Co-Sale  Rights,  I-Mab  HK  and/or  the  Management  and/or  the  Management  Holdco  and/or  the
ESOP Holdco (as the Selling Shareholder(s)) shall purchase all equity requested to be sold by the Investors who intend
to  exercise  the  Full  Co-Sale  Rights  at  the  same  conditions,  otherwise  they  shall  not  transfer  Offered  Equity  to  the
Proposed Transferee.

(3)

This Article 3.3 does not apply to any Exempt Transfer listed in Article 2.1.

3.4

Liquidation Preference.

Before the Qualified IPO of the Company, in the event of the Company’s liquidation, dissolution, or occurrence of a Deemed
Liquidation Event (as defined below), the Company’s property shall be used to pay off liquidation expenses, employee salaries
and  social  insurance  expenses,  statutory  compensation,  taxes  owed  by  the  Company  and  the  Company  debts  in  the  order
prescribed by law. If there is any remaining property after the Company’s liquidation property is liquidated in accordance with
the abovementioned provisions, or in case of a Deemed Liquidation Event, the Company or all shareholders have surplus after
deduction of relevant taxes (collectively referred to as the “Remaining Property”), the Remaining Property shall be allocated
in the following order:

(1)

An Investor has the right to take precedence over the Existing Shareholders of the Company except for the Series A
Round  Investors  to  receive  the  higher  of  (“Liquidation  Preference  Amount”):  (i)  x)  the  Investors  Investment
Amount paid by the Investor, plus y) investment return accrued from the date on which the Investor actually paid the
relevant  Investors  Investment  Amount  until  the  payment  date  of  the  relevant  Liquidation  Preference  Amount,
calculated on the basis of the annualized 10% simple interest rate on the Investor Investment Amount so paid, plus z)
the  Company’s  undistributed  profits  (if  any)  corresponding  to  the  Investor’s  equity;  or  (ii)  among  the  Remaining
Property, the part that the Investor would be entitled to receive base on its shareholding percentage in the Company. If
the Remaining Property is insufficient to pay all Investors their Liquidation Preference Amount in full, the Company
shall  allocate  the  Remaining  Property  among  the  Investors  in  proportion  of  each  Investor’s  Liquidation  Preference
Amount. The aforesaid Liquidation Preference Amount shall be paid to the Investors by RMB cash.

(2)

If  there  are  any  assets  remaining  after  the  Liquidation  Preference  Amount  has  been  paid  in  full,  the  Remaining
Property shall be distributed ratably among the other shareholders of the Company according to the relative proportion
of equity held by them in the Company.

- 10 -

(3)

(4)

The Parties shall take all effective measures in compliance with the applicable PRC laws to ensure that the Investors
obtain their priority proceeds from the distributable Remaining Property in the above-mentioned order, in a manner
consistent  with  applicable  PRC  laws.  The  Parties  shall  cooperate  with  the  completion  of  the  procedures  that  are
required under the applicable laws for performance of obligations under this Article 3.4.

For  the  purposes  of  this  Agreement,  “Deemed  Liquidation  Events”  shall  mean  (i)  all  or  substantially  all  of  the
Company’s assets, business or equity are sold, transferred or otherwise disposed of in a transaction or series of related
transactions ; or (ii) all or substantially all of the Company’s intellectual property rights are transferred or exclusively
licensed to third parties for use in a transaction or series of related transactions; or (iii) fifty percent (50%) and above
of the Company’s equity is sold, transferred to third parties or otherwise disposed of in a transaction to third parties or
series  of  related  transactions,  or  due  to  the  merger,  reorganization,  business  integration,  or  any  other  form  of
transaction  between  the  Company  and  other  entities,  resulting  in  all  shareholders  of  the  Company  before  such
transactions  no  longer  hold  fifty  percent  (50%)  and  above  of  the  Company’s  voting  rights  after  such  mergers,
reorganizations, business integration, or any other form of transaction.

3.5

Repurchase

(1)

Repurchase Triggering Scenario (“Repurchase Scenario”):

(a) on September 15, 2024, the Company fails to close a Qualified IPO;

(b) Serious breach of the relevant commitments and warranties set forth in Article 8.1 of this Agreement and Article 4.3
of the Investment Agreement by the Company, I-Mab HK or I-Mab Shanghai, and creates material obstacles to the
Qualified  IPO  of  the  Company  resulting  in  the  Company’s  Qualified  IPO  application  being  rejected  by  the  stock
exchange  or  securities  regulatory  authority,  or  the  intermediary  institutions  such  as  the  Company’s  sponsor,  lawyer
believe that such problems cannot be solved and the purpose of Qualified IPO cannot be achieved;

(c)  other  shareholders  of  the  Company,  other  than  the  Repurchase  Scenario  (d),  require  the  Company,  the  controlling

shareholder(s) or other subject to repurchase their equity in the Company as set forth in Article 3.5 (1);

(d)  subject  to  the  requirements  of  the  regulatory  review  of  A-shares,  upon  written  notice  from  I-Mab  HK,  and  the
consent of the board of directors of the Company (which shall include directors appointed by all Investors and shall
be actively pursued by all Parties and shall not be unreasonably withheld or delayed after I-Mab HK has provided
reasonable material explanation) or the written request of the A-shares review regulatory authority (Shanghai Stock
Exchange or the China Securities Regulatory Commission), for the purpose of A-shares listing of I-Mab, I-Mab HK is
unable to continue to perform its repurchase obligations under this Article 3.5.

- 11 -

(2)

(3)

(4)

Within three (3) years of the occurrence of the Repurchase Scenario (a), within forty-five (45) days of the occurrence
of the Repurchase Scenario (c), which the Investor knows or should know (whichever is the date when the Company,
the controlling shareholder(s) or other repurchase obligation subject serves the Investor with the notice as stipulated in
Article  8.3),  or  other  period  that  may  then  be  agreed  between  I-Mab  and  the  Investors  through  consultation,  any
Investor  will  have  the  right  to  elect  to  request  I-Mab  HK  to  repurchase  all  or  any  part  of  the  equity  held  by  such
Investor in the Company by cash. The repurchase price of the corresponding equity represented by per 1 U.S. dollar of
registered  capital  of  the  Company  Investors’  Equity  shall  be  (a)  the  Investor’s  Original  Unit  Investment  Price  (as
defined below; or if the Original Unit Investment Price has been adjusted in accordance with Article 3.6, the Adjusted
Unit  Investment  Price  shall  be  applied  instead),  plus  (b)  accrued  from  the  date  that  the  Investor  actually  paid  the
relevant  Investors  Investment  Amount  till  the  date  when  the  repurchase  price  is  paid,  interest  calculated  at  the
annualized 10% simple interest rate on the Original Unit Investment Price (or the Adjust Unit Investment Price), plus
(c)  the  Company’s  undistributed  profits  (if  any)  corresponding  to  such  equity  (collectively  referred  to  as  the
“Repurchase  Price”).  The  total  Repurchase  Price  that  an  Investor  is  entitled  to  shall  be  a  product  obtained  by
multiplying the unit Repurchase Price of per 1 U.S. dollar of registered capital calculated pursuant to the preceding
provisions, by the total amount of registered capital corresponding to the Investors’ Equity which the Investor requests
to be repurchased.

Within three (3) years of the occurrence of the Repurchase Scenario (b), within forty-five (45) days of the occurrence
of  the  Repurchase  Scenario  (d),  or  other  period  that  may  then  be  agreed  between  I-Mab  and  the  Investors  through
consultation, any Investor will have the right to elect to request I-Mab HK to repurchase all of the equity held by such
Investor in the Company by cash. The Repurchase Price of the corresponding equity represented by per 1 U.S. dollar
of registered capital of the Company Investor’s Equity shall be repurchased in accordance with the valuation of the
corresponding equity assessment by an evaluation institution jointly designated by the Parties at that time, and such
Repurchase  Price  shall  not  be  less  than  the  Repurchase  Price  as  stipulated  in  Article  3.5  (2)  of  the  Shareholders
Agreement.

If the Investor fails to exercise the right of repurchase as stipulated under this Article 3.5 within forty-five (45) days of
the occurrence of the Repurchase Scenario (d), I-Mab HK shall no longer assume any repurchase obligations, and the
Company shall assume the repurchase obligations under this Article 3.5. Where the Company assumes the repurchase
obligation, the Existing Shareholders shall, and the Company and I-Mab HK and the Management shall make every
effort to cause all shareholders at that time to sign the resolution required for capital reduction and complete the legal
procedures for the Company’s repurchase.

- 12 -

(5)

(6)

(7)

(8)

I-Mab HK and the Investors hereby agree that if any Investor intends to exercise the Repurchase Right in accordance
with  the  provisions  of  Article  3.5  (1)  above,  subject  to  the  approval  procedures  of  I-Mab  and  the  then  applicable
domestic and foreign securities laws and regulatory rules on public companies, if the Parties intend to have I-Mab to
use its stock as consideration to repurchase the equity of the Company against which the Investor intends to exercise
the  Repurchase  Right  (hereinafter  referred  to  as  “Repurchase  by  Stock”),  it  shall  be  negotiated  separately  by  the
Investors and I-Mab. If the value of I-Mab stock obtained by an Investor through Repurchase by Stock has reached an
amount equal to the product obtained by multiplying the unit Repurchase Price under Article 3.5 (2) by the quantity of
equity held by such Investor, I-Mab HK shall no longer assume the repurchase obligations under this Article 3.5 with
respect  to  such  equity  of  the  Company  held  by  the  Investor.  From  expiration  of  the  four  (4)  years  period  after  the
Closing Date of the Series A Round financing, that is September 15, 2020, and within three (3) years thereafter, or
within exercising period that may be otherwise agreed between I-Mab HK and the Investors through consultation, with
consent  of  the  Majority  Investors,  negotiation  may  be  initiated  with  I-Mab  on  I-Mab’s  repurchase  of  equity  of  the
Company held by the Investors by issuance of I-Mab stock as consideration. If the Investor fails to exercise the right
of  repurchase  as  stipulated  under  this  Article  3.5  within  forty-five  (45)  days  of  the  occurrence  of  the  Repurchase
Scenario (d), this Article shall automatically terminate.

(i) I-Mab HK and the Company shall complete procedures that are required under the applicable laws for performance
of obligations under this Article 3.5. I-Mab HK guarantees that, within 1 year from the date on which any Investor
delivers request of repurchase to the Company in writing, the Investor will receive Repurchase Price for all equity with
respect to which it has exercised right of repurchase. Before I-Mab HK has paid the Investors the Repurchase Price in
full, the Investors shall still be entitled to the full shareholder rights under the laws of the PRC and this Agreement for
the  equity  in  which  it  has  not  obtained  relevant  portion  of  Repurchase  Price.  (ii)  If  I-Mab  HK  disposes  of  all  or
substantially  all  of  the  equity  directly  or  indirectly  held  by  it  in  I-Mab  Bio-Tech  (Tianjin)  Co.,  Ltd.  and  I-Mab
Biopharma  Co.,  Ltd.  and  such  disposal  of  equity  may  impact  I-Mab  HK’s  capability  to  perform  its  repurchase
obligations under this Article 3.5, I-Mab HK shall cause other company(ies) within the Group who have capacity of
repurchase  to  jointly  covenant  to  perform  the  repurchase  obligations,  so  as  to  make  up  for  deficiency  in  the
Warrantor’s  capacity  of  repurchase  (If  the  Investor  fails  to  exercise  the  right  of  repurchase  as  stipulated  under  this
Article  3.5  within  forty-five  (45)  days  of  the  occurrence  of  the  Repurchase  Scenario  (d),  this  Article  (ii)  shall
automatically terminate).

The Repurchase Price shall be adjusted according to stock split, dividend distribution, capital reorganization and other
similar situations.

In the event that I-Mab HK and/or the Company fails to perform its repurchase obligations, any Investor has the right
to require the Company to raise funds to perform its repurchase obligations by selling assets, dividends, liquidation or
other  means  permitted  by  applicable  laws  (“Alternative Means”),  the  shareholders  of  the  Company  other  than  the
Investor then agree and ensure that they act in concert with the Investor, make relevant resolutions in accordance with
the direction of the Investor, and sign all legal documents required to enforce the Alternative Means.

- 13 -

3.6

Anti-Dilution

If, after the Closing Date and before the Company’s Qualified IPO, the Company issues new registered capital (or securities
that  can  be  converted  into  or  can  be  exercised  as  the  Company’s  equity)  with  a  unit  price  of  per  1  U.S.  dollar  of  registered
capital  (the  “New  Unit  Price”)  that  is  lower  than  any  Investor’s  Original  Unit  Investment  Price  at  its  investment  in  the
Company, the Investor will have the right to require the Original Unit Investment Price of its equity held in the Company to be
reduced to an amount that is equal to the New Unit Price (the Original Unit Investment Price, after such adjustment, shall be
referred to as the “Adjusted Unit Investment Price”), and recalculate the amount of equity in the Company that it should have
been  entitled  to  obtain  based  on  its  Investor  Investment  Amount.  After  the  recalculation,  the  amount  of  Company  registered
capital held by each Investor shall be equal to the quotient obtained by dividing the Investors Investment Amount paid by such
Investor in the Transactions, by the Adjusted Unit Investment Price (“Investor’s Equity after Adjustment”). The difference
between  the  Investor’s  Equity  after  Adjustment  and  the  Investor’s  then  actual  equity  shall,  to  the  extent  permitted  by  the
applicable  laws,  be  compensated  by  the  Company  by  issuing  additional  registered  capital  to  the  Investor  at  the  lowest  price
permitted by law. For the avoidance of doubt, the “Original Unit Investment Price” of the Series A Round Equity is initially
RMB  equivalent  to  USD$10  per  USD$1  of  registered  capital  (calculated  according  to  the  USD  to  RMB  central  parity  rate
announced by the People’s Bank of China on the day of such Investor’s payment of its Series A Round Investors Investment
Amount); the “Original Unit Investment Price” of the Series B Round Equity is initially RMB equivalent to USD$16.6666
per USD$1 of registered capital (calculated according to the USD to RMB central parity rate announced by the People’s Bank
of China on the day of such Investor’s payment of its Series B Round Investor Investment Amount). However, equity/shares
issuance  for  implementation  of  employee  equity  incentive  plans  or  other  incentive  arrangements  approved  by  the  Investors
Directors  shall  not  trigger  the  adjustments  under  this  Article  3.6.  For  the  avoidance  of  doubt,  if,  in  accordance  with
Shareholders’ resolution, the Company uses capital reserve fund to increase the registered capital of all shareholders on a pro
rata basis, the Original Unit Investment Price of the anti-dilution right investor under this Article shall be diluted and reduced
proportionally.

3.7

3.8

Effect of Preferred Rights. Unless otherwise agreed in this Agreement, the foregoing special rights of Investors as stipulated
in Article 3 of this Agreement shall automatically lapse at the time as necessary for initial public offering of the Company and
in accordance with requirements of the regulatory authority for initial public offering; provided, however, such rights shall be
automatically reinstated as if such rights had never expired or terminated, when (i) the Company withdraws the application for
initial public offering, (ii) the Company fails to successfully complete the issuance with eighteen (18) months after submission
of  application  for  initial  public  offering  (this  period  can  be  extended  by  the  Parties  through  written  agreement  before  the
expiration), or (iii) the relevant regulatory authority overrules or rejects the Company’s application for Qualified IPO (based on
the earliest occurrence of the preceding three events).

New Shareholders. If, after execution of this Agreement, any shareholder of the Company intends to transfer all of the equity
held  by  it  in  the  Company  to  any  third  party,  the  transferee  of  the  equity  shall  sign  an  agreement  with  the  Parties  to  this
Agreement simultaneously with the transfer of the equity, stipulating that the transferee shall be assigned rights and obligations
of the transferring shareholder. If, after execution of this Agreement, any shareholder of the Company intends to transfer a part
of the equity held by it in the Company to any third party, the transferee of the equity shall sign an agreement with the Parties to
this Agreement simultaneously with the transfer of the equity, stipulating that the transferee and the transferor shall respectively
be entitled to the rights of the transferor hereunder immediately prior to the transfer, and be subject to the obligations of the
transferor hereunder immediately prior to the transfer, with respect to equity of the Company respectively held by each of them.
Rights and obligations of the transferee(s) of equity shall be subject to agreement among the transferee(s) and all shareholders
of the Company at that time.

- 14 -

3.9

4.1

Most Favored Nation. In the event any Investor is entitled to, with respect to its investment in these Transactions, any terms
(the “More Favorable Terms”)  that  are  more  favorable  than  the  Series  A  Round  Investors  other  than  those  required  by  the
applicable laws and regulations or under the Transaction Documents (as defined in the Investment Agreement), the Series A
Round  Investors  shall  automatically  be  entitled  to  the  same  More  Favorable  Terms.  In  the  event  that  the  Series  A  Round
Investors are entitled any More Favorable Terms than the Series B Round Investor in the Transactions in accordance with any
document prior to this Agreement, then the Series B Round Investor shall automatically be entitled to the same More Favorable
Terms.

Article 4

 Corporate Governance

Composition of Board. The Company shall establish a Board of Directors. As of the Closing Date, the Board of Directors shall
consist  of  seven  (7)  persons,  of  which:  I-Mab  HK  has  the  right  to  appoint  three  (3)  directors;  Fushi  Capital  has  the  right  to
appoint  one  (1)  director;  Tsingsong  Shenzhen  and  Tsingsong  Nanjing  have  the  right  to  appoint  one  (1)  director  jointly;
Wenzhou  Ruihe  has  the  right  to  appoint  one  (1)  director  (together  with  the  directors  appointed  by  Fushi  Capital,  Tsingsong
Shenzhen and Nanjing Tsingsong, collectively referred to as the “Investors Directors”); the Management Holdco has the right
to appoint one (1) director. The Company shall have a Chairman, who shall be a director appointed by I-Mab HK. The Parties
hereby unanimously agree that, in accordance with Article 4.3 (10) of the Investment Agreement, if the percentage of equity in
the Company held by I-Mab HK falls below 30%, the Parties shall adjust the number of directors that I-Mab HK is entitled to
appoint to a number of seats commensurate with the proportion of shares held at the time, and such adjusted number of seats
shall be consistent with the purpose of I-Mab HK not having control of the Company at that time.

Each  Shareholder  of  the  Company  shall  exert  affirmative  votes  on  election  of  the  aforesaid  nominees  of  Directors,  so  as  to
ensure  persons  nominated  by  the  Parties  who  are  entitled  to  appoint  Directors  pursuant  to  this  Article  4.1  be  elected  as
Directors  of  the  Company.  Wenzhou  Ruihe  has  the  right  to  appoint  one  (1)  Board  observers.  Each  Board  observer  shall  be
entitled to: (i) simultaneously with the Directors of the Company, receive all notices for Board meetings, meeting materials and
other documents that the Company delivers to the Directors; (ii) attend Board meetings and make speech, and receive copies of
Board resolutions and meeting minutes, provided that the observer shall have no voting rights on any matter reviewed by the
Board; and (ii) customary information rights of Directors.

4.2

Shareholders’ Power. The Shareholders shall exercise the following powers to:

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

Decide the Company’s business policy and investment plan;

Elect and replace directors, and decide on matters related to the remuneration of directors;

Elect  and  replace  supervisors  who  are  representatives  of  the  Shareholders,  and  determine  matters  related  to  the
remuneration of supervisors;

Review and approve the report of the Board of Directors;

Review and approve the report of the supervisors;

Review and approve the Company’s annual financial budget plan and final account plan;

Review and approve the Company’s profit distribution plan and loss make-up plan;

Adopt resolutions on issuance of corporate bonds;

- 15 -

(9)

(10)

Adopt resolutions on the Company’s  public  offering  of  shares,  determination  or  amendment  of  the  Company’s IPO
plan (including without limitation jurisdiction of IPO);

Adopt  resolutions  on  shareholders’  transfer  of  equity  interest  or  change  of  shareholding  structure  of  the  Company
(provided  that  in  the  event  any  Party  transfers  equity  in  compliance  with  this  Agreement,  the  other  Parties  shall
cooperate to pass the relevant Shareholders resolutions);

(11)

Adopt resolutions on the increase or decrease of the registered capital of the Company or its Subsidiaries;

(12)

Adopt resolutions on matters of the Company or its Subsidiaries such as mergers, divisions, changes in organizational
form,  dissolution,  termination,  liquidation,  ceasing  to  operate  principal  business  of  the  Company,  or  Deemed
Liquidation Events;

(13)

Amend the Company’s or its Subsidiaries’ articles of association.

In  shareholders  meetings,  the  shareholders  shall  exercise  their  voting  power  in  accordance  with  the  proportion  of  registered
capital  respectively  subscribed  by  them.  When  the  shareholders  adopt  resolutions  on  items  (9)-(13)  above,  such  resolutions
must be passed by shareholders representing more than two-thirds (2/3) of the voting power (including the consent of I-Mab
HK and the Majority Investors (for the avoidance of doubt, shall include consent of the Investors who are entitled to appoint
Investors  Directors)).  Except  for  the  abovementioned  circumstances,  the  resolution  of  the  shareholders  shall  be  passed  by
shareholders representing more than one-half (1/2) of the voting power.

4.3

Board of Directors’ Power. The Board of Directors shall exercise the following power to:

(1)

(2)

(3)

(4)

(5)

(6)

(7)

Decide the business plan and investment plan of the Company and its Subsidiaries;

Formulate the annual financial budget plan and final account plan of the Company and its Subsidiaries;

Formulate profit distribution plan and loss make-up plan of the Company and its Subsidiaries;

Formulate plans for the Company and/or its Subsidiaries to increase or decrease the registered capital;

Approve, implement or amend the Company’s employee equity incentive plan and specific plans thereof;

Formulate  merger,  division,  change  of  company  organization  form,  and  dissolution  plan  of  the  Company  and/or  its
Subsidiaries;

Approve, extend or amend related party transactions or agreements between the Company and/or its Subsidiaries and
any of its shareholders, directors and Senior Officers or their respective Affiliates (except related party transactions or
agreements necessary for the Exempt Transfer described in Article 2.1 hereof, or execution, extension or amendment
of  any  related  party  transaction  or  agreement  to  the  extent  such  execution,  extension  or  amendment  is  made  in
accordance with related party transaction/agreement framework plan approved in advance by the Board of Directors
(including the Investors Directors);

- 16 -

(8)

(9)

Approve the Company and/or its Subsidiaries to sell, mortgage, pledge, transfer or dispose of the intellectual property
as  contributed  by  I-Mab  HK  to  the  Company  stipulated  in  the  Series  A  Round  Investment  Agreement,  or  sale  or
disposal of all or substantially all of assets related to any Target Pipeline of the Company stipulated in the Series A
Round Investment Agreement;

Any commercial cooperation between the Company or its Subsidiaries and any third party regarding the intellectual
property related to the Target Pipelines as contributed by I-Mab HK to the Company stipulated in the Series A Round
Investment Agreement, including but not limited to joint development, external licensing, etc.;

(10)

Company’s or its Subsidiaries’ provision of securities to third parties;

(11)

Amendment of the list of the Competitors of the Company as attached to this Agreement;

(12)

The  Company’s  obtainment  of  license  from  any  third  party  under  any  Intellectual  Property,  or  the  license  of  any
Intellectual Property of the Company to any third party, or change of any existing license agreement or arrangement in
connection with any Target Pipeline stipulated in the Series A Round Investment Agreement;

(13)

Decide on the establishment of the internal management organization of the Company and its Subsidiaries;

(14)

(15)

Formulate  the  Company’s  basic  management  policies  (including  without  limitation  policies  on  the  Company’s
provision of securities or lending of loans to third parties, borrowing of loans, related party transactions);

Approve  the  company  and  its  Subsidiaries  as  service  providers  to  sign  any  CRO  contracts,  contract  for  CMC
development  and  contract  manufacturing  of  drugs,  or  contract  for  contract  development  or  manufacture  of  drugs  of
similar nature;

(16)

Approve the planning and design (including its modifications and changes) and implementation of the production lines
of the Company and its Subsidiaries; and

(17)

Other powers granted under the applicable laws, the Company’s articles of association, or by the Shareholders.

4.4

Each member of the Board of Directors shall have one vote. The quorum for meetings of Board of Directors shall exceed two-
thirds (2/3) of the total number of directors, and the Board of Directors resolutions reached are valid only if with affirmative
votes of a majority of the directors. Notwithstanding the foregoing, the Board of Directors shall not adopt resolutions on the
matters  listed  in  item  (5)  above  without  the  affirmative  votes  of  over  two-thirds  (2/3)  of  the  directors,  including  affirmative
votes of at least one Investor Director; and the Board of Directors shall not adopt resolutions on the mattes listed in items (6) to
(12), (15) and (16) above without the affirmative votes of a majority of the directors, including affirmative votes of at least one
director appointed by I-Mab HK and all the Investors Directors.

Article 5

Dissolution of Act in Concert

5.1

I-Mab HK, the Management Holdco and the ESOP Holdco unanimously agree to terminate the relationship of act in concert
agreed  in  Article  5  Act  in  Concert  of  the  Series  A  Round  Shareholders  Agreement,  and  terminate  all  rights  and  obligations
under such relationship of act in concert.

- 17 -

5.2

6.1

6.2

6.3

6.4

7.1

From the effective date of this Agreement, I-Mab HK, the Management Holdco and the ESOP Holdco shall, as shareholders of
the  Company,  in  accordance  with  the  laws  and  regulations,  the  Company’s  articles  of  association  and  provisions  of  this
Agreement,  independently  exercise  all  the  rights  of  shareholders  including,  but  not  limited  to,  information  rights,  dividend
rights,  economic  rights  and  other  rights  granted  by  the  laws  and  regulations,  or  the  Company’s  articles  of  association  and
provisions of this Agreement.

Article 6  Liability for Breach of Contract; Indemnification

If  any  Party  to  this  Agreement  breaches  the  provisions  of  this  Agreement,  the  Other  Parties  shall  have  the  right  to  claim
indemnification for the losses suffered by them as a result of the breach in addition to other rights that they may be entitled to
under this Agreement.

Subject to other provisions of this Agreement, a Party to this Agreement (hereinafter referred to as the “Indemnifying Party”)
shall  indemnify  and  hold  harmless  the  Other  Parties  (hereinafter  referred  to  as  the  “Indemnified Parties”)  against  losses  or
payment  incurred  in  connection  with  any  of  the  following  circumstances:  (a)  any  representation  or  statement  made  by  the
Indemnifying Party in this Agreement is false, untrue or misleading,(b) the Indemnifying Party has violated or failed to fully
fulfill the covenants, warranties or obligations under this Agreement, in each case except the circumstances which have been
waived  by  the  Other  Parties  in  writing.  The  Indemnifying  Party  shall  indemnify  the  Indemnified  Parties  against  any  and  all
losses directly or indirectly suffered by the Indemnified Parties as a result of the foregoing circumstances.

If any Party to this Agreement breaches the provisions of this Agreement, in addition to any other rights under this Agreement,
the Other Parties shall have the right to require the breaching Party to specifically and completely perform the obligations under
this Agreement.

Notwithstanding anything to the contrary herein, the provisions of this Article shall survive termination of the Parties’ rights
and obligations hereunder, and survive the termination of this Agreement.

Article 7

 Effectiveness, Amendment and Termination of the Agreement

Effectiveness.  This  Agreement  shall  take  effect  on  the  Closing  Date,  subject  to  the  due  execution  of  this  Agreement  by  the
Parties or their authorized representatives (Chinese non-natural persons must also affix their official seals). Upon the entry into
force of this Agreement, the Series A Round Shareholders Agreement shall automatically terminate and be superseded in its
entirety by this Agreement.

7.2

Amendment.

(1)

Unless otherwise provided in this Agreement, any amendment or modification of this Agreement shall be negotiated
by  the  Parties  separately  and  shall  not  take  effect  until  a  written  contract  is  signed  jointly  on  the  amendment  or
modification.

- 18 -

(2)

Notwithstanding the foregoing, the Parties acknowledge that if the Company establishes any new Management Holdco
or  ESOP  Holdco  after  the  signing  of  this  Agreement  (including,  but  not  limited  to,  the  ESOP  Holdco  established
separately in accordance with Article 7.1 of the Investment Agreement, if applicable), the Company shall cause such
Management Holdco or ESOP Holdco to sign a reasonable form of Joinder Agreement to the Shareholder Agreement
and send such Joinder Agreement to the Other Parties to confirm that such Shareholding Platform has become a Party
to this Agreement, and shall have the same rights and obligations as the Management Holdco or ESOP Holdco under
this Agreement. The foregoing adjustments shall take effect on the date on which such Shareholding Platform acquires
the equity in the Company without the need for a separate written contract between the Parties.

7.3

Termination. This Agreement may be prematurely terminated in accordance with the following provisions:

7.4

8.1

(1)

(2)

With the unanimous written consent of all Parties;

If force majeure occurs and as a result the fundamental purpose of this Agreement cannot be achieved, any Party may
terminate this Agreement.

Effect of Termination. When this Agreement is terminated in accordance with Article 7.3, except the provisions in Article 6
(Liability  for  Breach  of  Contract;  Indemnification),  Article  8  (Miscellaneous)  and  this  Article  7.4,  this  Agreement  shall  be
invalid and shall no longer be binding or effective, and the Parties will be no longer required to bear the responsibilities and
obligations under this Agreement; provided, however, despite termination of this Agreement, a Party shall still be liable for any
losses incurred by the Other Parties as a result of its breach of this Agreement before the termination.

Article 8

 Miscellaneous

Other Commitments from I-Mab HK and I-Mab Shanghai. I-Mab HK and I-Mab Shanghai undertake that if the Company
subsequently starts to prepare for an independent listing, I-Mab HK and I-Mab Shanghai will, based on the actual situation of
the equity in the Company held by I-Mab HK at that time, make their reasonable commercial efforts to provide the necessary
cooperation  to  the  Company  on  issues  related  to  the  demonstration  of  independence  by  means  including  the  cancellation  of
preferential  rights  arrangement,  adjustment  of  the  equity  in  the  Company  held  by  I-Mab  HK  and  the  weight  of  corporate
governance,  etc.  in  due  time,  including  but  not  limited  to  the  following  matters:  1)  issue  a  Letter  of  Commitments  to  avoid
inter-sector competition (if required) and cooperate with the signing of relevant agreements (if involved) in accordance with the
audit requirements at that time and the proportion of shares of I-Mab HK at that time when the Company applies for a Qualified
IPO;  2)  make  its  best  commercial  efforts  to  reduce  connected  transactions  with  the  Company  in  accordance  with  the  audit
requirements at that time when the Company applies for a Qualified IPO, and ensure that its connected transactions with the
Company shall be conducted in compliance with requirements of relevant securities regulatory rules such as reasonableness,
necessity, fairness; 3) in order to meet the audit requirements of the independence of the Company’s personnel when applying
for the Qualified IPO, I-Mab HK shall cooperate with the Company to improve the independence of the Company’s personnel,
including,  but  not  limited  to,  to  make  the  relevant  personnel  of  I-Mab  HK  no  longer  participate  in  the  operation  and
management of the Company as members of the management of the Company and to maintain mutual independence with the
management of the Company.

8.2

Other Commitments of the Company and its Investors. As a participating subsidiary of I-Mab HK, in the subsequent capital
market operations of I-Mab HK or its affiliates, if it needs to conduct necessary due diligence, verification to the Company or
require  the  Company  to  issue  necessary  explanations  or  other  documents,  the  Company  and  the  Investors  should  make  their
best commercial efforts to provide necessary cooperation.

- 19 -

8.3

Notice.

(1)

All notices, claims, requests, consents, waivers and other communications required or permitted under this Agreement
shall be in writing (including telegram, fax or similar written form) and shall be sent, delivered or mailed, e-mailed or
faxed to the following addresses:

Company:

I-Mab Biopharma
(Hangzhou) Co., Ltd.

Attention:

Phone:

E-mail:

Address:

***

***

***

***

I-Mab
Shanghai:

I-Mab Biopharma Co., Ltd.

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Existing
Shareholders:

I-MAB BIOPHARMA HONGKONG 
LIMITED

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Hangzhou Fushi Investment
Management Partnership (Limited
Partnership)

Attention:

Phone:

Fax:

E-mail:

Address:

***

***

***

***

***

- 20 -

Shenzhen Tsingsong Shengrui
Investment Partnership (Limited
Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Nanjing Tsingsong Healthcare Investment
Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Hangzhou Heda Biotech Investment
Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Xiamen Ronghui Derong Equity
Investment Partnership (Limited
Partnership)

Attention:

Phone:

Fax:

E-mail:

Address:

***

***

***

***

***

- 21 -

Ningbo Yanyuan Yaoshang 
Chanrong Equity Investment
Partnership (Limited
Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Yanchuang Yaoshang
Yangming Investment
Partnership (Limited
Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Jiangsu Yanyuan Dongfang
Investment Partnership
(Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Rongshun Yanyuan
Investment Partnership
(Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Yanyuan Innovation
Investment Partnership
(Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

- 22 -

Zhuzhou Guochuang Junyao
Investment Partnership
(Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Hanhai Qianyuan
Equity Investment Partnership
(Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Hangzhou Haibang Yigu
Investment Partnership
(Limited
Partnership)/Jialiang Shan

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Zhejiang Silu Industry
Investment Fund
Partnership (Limited
Partnership)

Attention:

Phone:

Fax:

E-mail:

Address:

***

***

***

***

***

- 23 -

Viva Biotech (Shanghai) Ltd.

Attention:

Phone:

Fax:

E-mail:

Address:

***

***

***

***

***

Tianjin Huatian
Enterprise Management Consultation
Limited Partner (Limited
Partner)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Qingdao Xinneng Property
Management Co., Ltd.

Attention:

Phone:

E-mail:

Address:

***

***

***

***

The Management/Hangzhou
Yijing Biotech Partnership
(Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Hangzhou Lanjing Biotech
Partnership (Limited
Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

- 24 -

Series B 
Round 
Investor

Pingtan Wenzhou Ruihe
Investment Partnership (Limited 
Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Huzhou Jingyun Equity
Investment Partnership (Limited
Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Pingtan Wenzhou Ruizhi
Investment Partnership
(Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Jiaxing Hongtong Investment
Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Qingdao Zhongou Industry
Investment Partnership (Limited
Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Qingdao Haiyang Innovation
Investment Co., Ltd.

Attention:

Phone:

E-mail:

Address:

***

***

***

***

- 25 -

Ningbo Yijing Management
Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Hangjing Management
Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

Ningbo Zhengjing Management
Partnership (Limited Partnership)

Attention:

Phone:

E-mail:

Address:

***

***

***

***

(2)

Each notice, request or other communication delivered or served in accordance with the provisions of Article 8.2 (1)
shall be deemed as delivered or served as follows: (a) if sent by a courier company or personally delivered, it shall be
deemed as delivered when the relevant notice, request or communication is sent to the above-mentioned address; (b) if
sent by fax, then the relevant notice, request or communication shall be deemed as delivered when it is transmitted to
the above fax number and the report of successful fax transmission is obtained; (c) if sent by e-mail, it shall be deemed
as  delivered  twenty-four  hours  after  the  date  on  which  the  e-mail  containing  the  relevant  notice,  request  or
communication  as  recorded  by  the  sender’s  computer  is  sent,  provide,  however,  if  the  sender  does  not  receive  the
recipient’s  confirmation  of  receipt  of  the  above  e-mail  within  twenty-four  hours  (except  for  automatic  email
confirmation of receipt), the above notice, request or other communication shall be sent by courier or fax by the end of
the  same  day.  The  addresses  and  e-mails  provided  by  the  Parties  be  used  as  the  address  for  service  of  dispute
resolution  under  this  Agreement.  The  confirmed  address  for  service  applies  to  all  stages  of  dispute  resolution,
including arbitration, first instance, second instance, retrial, and execution, etc.

8.4

8.5

Governing law. This Agreement shall be governed by and be construed in accordance with the PRC laws.

Dispute Resolution.  In  the  event  of  is  a  dispute  over  the  interpretation  or  performance  of  this  Agreement,  the  Parties  shall
firstly attempt to resolve the dispute through friendly consultation. If the dispute cannot be resolved through consultation within
thirty (30) days after one Party delivers written notice to the Other Parties requesting the commencement of consultation, then
any Party may submit the dispute to the China International Economic and Trade Arbitration Commission for arbitration, and
the  arbitration  shall  be  conducted  in  Hangzhou  according  to  the  said  commission’s  arbitration  rules  then  in  force.  The
arbitration award shall be final and binding on all Parties and cannot be appealed. The arbitration costs shall be borne by the
losing  party  unless  the  arbitration  award  provides  otherwise.  When  any  dispute  occurs  and  when  any  dispute  is  under
arbitration,  except  the  matter  under  disputes,  the  Parties  shall  continue  to  exercise  their  other  rights  and  perform  their  other
obligations under this Agreement.

- 26 -

8.6

8.7

8.8

8.9

8.10

8.11

Confidentiality. Each of the Parties shall not, and shall cause its respective Affiliates, shareholders, directors, senior officers,
employees, representatives or agents not to, directly or indirectly disclose the existence of this Agreement or any information
related to the Transactions (including any information obtained by the Party during the course of the negotiation and execution
of this Agreement), unless (a) it has obtained the prior written consent of the non-disclosing Parties, or (b) such information is
required to be disclosed by the applicable laws and is only disclosed to the extent necessary to comply with the applicable laws
or any regulations or policies of any stock exchange, provided, however that the disclosing Party shall, within a reasonable time
before  the  disclosure  or  submission  of  the  relevant  information,  seek  opinions  of  the  Other  Parties  on  such  disclosure  and
submission, and that if required by the Other Parties, the disclosing Party shall seek for confidential treatment of the disclosed
or submitted information to the extent possible. Notwithstanding the foregoing covenants, I-Mab, as a company listed in the
United States, is entitled to disclose information about the Company’s financing as required by the U.S. securities laws or other
securities regulatory authorities that may apply thereto, without the Parties’ separate consent. Upon completion of the closing,
each party shall have the right to disclose the existence of the Series B Round investor’s investment in the Company to third
parties  or  the  public,  provided  that  any  party  disclosing  matters  relating  to  the  Series  B  Round  Investor’s  investment  in  the
Company shall consult with I-Mab HK in order to comply with the disclosure requirements under U.S. securities laws or other
securities regulatory laws and regulations that may be applicable thereto.

Severability. The obligations under this Agreement shall be regarded as separate obligations and be independently enforceable.
When one or more obligations of this Agreement are unenforceable, the enforceability of other obligations shall not be affected.
If this Agreement is not enforceable against any Party, the enforceability of this Agreement among the Other Parties shall not be
affected.  If  one  or  more  of  the  provisions  of  this  Agreement  are  found  to  be  invalid,  illegal  or  unenforceable  in  any  respect
according to any applicable law, or a government agency requests amendment of one or more provisions of this Agreement, the
validity, legality and enforceability of the remaining provisions shall not be affected or damaged in any way. The Parties shall
endeavor to replace these invalid, illegal or unenforceable provisions with valid provisions through sincere consultations, and
the  economic  effects  of  such  valid  provisions  shall  be  as  similar  as  possible  to  those  of  the  invalid,  illegal  or  unenforceable
provisions.

Entire  Agreement.  This  Agreement  (including  the  other  Transaction  Documents  and  any  other  documents  referred  to  or
contemplated hereunder or thereunder) constitutes the entire agreement among the Parties with regard to the subjects hereof,
and supersedes any other agreements or intentions previously reached by the Parties on the same subjects. The Company and its
Existing Shareholders (excluding the Series A Round Investors) hereby confirm that the Company, the Existing Shareholders
(excluding  the  Series  A  Round  Investors)  have  completed  the  Series  A  Round  Investment  Agreement  and  the  conditions  of
delivery  agreed  in  other  Transaction  Documents  have  all  been  satisfied,  and  there  is  no  breach  of  the  Series  A  Round
Investment Agreement and other Transaction Documents. For the avoidance of doubt, notwithstanding the provisions of this
Article, Article 8 Liability for Breach of Contract; Indemnification of the Series A Round Investment Agreement, shall remain
in effect.

Assignment.  Without  prejudice  to  the  provisions  of  the  PRC  laws  and  the  other  provisions  of  this  Agreement,  the  Investors
have  the  right  to  assign  their  rights  and  obligations  under  this  Agreement  to  their  respective  Affiliates,  and  such  assignment
does not require prior consent of Other Parties or the Company. An Investor has the right to assign its rights and obligations
under this Agreement to any third party along with the sale or transfer (if any) of its equity in the Company to such third party;
provided, however, such equity transfer shall be subject to the other Investors’ Right of First Refusal under Article 3.2 hereof.
Notwithstanding  anything  to  the  contrary  herein,  after  completion  of  its  capital  contribution  obligation,  any  Investor  may
transfer its then effective rights and obligations under this Agreement to its Affiliates along with the sale or transfer (if any) of
its equity in the Company, which transfer or assignment shall not be subject to any other shareholders’ consent, the Right of
First Refusal, the Co-Sale Rights or similar rights. Except the foregoing, without the prior written consent of each other Party,
no Party shall assign its rights or obligations under this Agreement; any assignment without the Other Parties’ consent shall be
invalid.

Counterparts. This Agreement is written in Chinese. This Agreement shall be signed in 38 original copies. Each Party shall
hold one (1) original copy, and the remaining original copies shall be held by the company. Each copy of this Agreement shall
be equally effective.

Priority. If, in order to request any government agency to carry out any specific act, separate agreements in connection with the
Transactions (including but not limited to, the Investment Agreement, the Company’s articles of association or amendments to
the articles of association, as may be amended from time to time) have to be signed in accordance with the standard templates
or requirements of the government agency, this Agreement shall control over any such agreements, and such agreements shall
only  be  used  to  request  the  government  agency  to  implement  the  specific  act,  and  shall  not  be  used  to  establish  or  as  an
evidence of any rights or obligations of the relevant parties on matters that may be stipulated in such agreements. In the event of
any conflict between the contents of this Agreement and the articles of association, the Parties agree that this Agreement shall
prevail to the extent permitted by law.

(No text below)

- 27 -

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Company:

I-Mab Biopharma (Hangzhou) Co., Ltd.
(Seal)

/s/ Lili Qian
Name: Lili Qian
Position: General Manager

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

I-Mab Shanghai:

I-Mab Biopharma Co., Ltd.
(Seal)

/s/ Jingwu Zhang Zang
Name: JINGWU ZHANG ZANG
Position: CHAIRMAN

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

I-MAB BIOPHARMA HONGKONG LIMITED

/s/ Jingwu Zhang Zang
Name: JINGWU ZHANG ZANG
Position: DIRECTOR

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Hangzhou Fushi Investment Management Partnership (Limited Partnership)
(Seal)

/s/ Hongbo Lu
Name: Hongbo Lu
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Shenzhen Tsingsong Shengrui Investment Partnership (Limited Partnership)
(Seal)

/s/ Song Zhang
Name: Song Zhang
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Nanjing Tsingsong Healthcare Investment Partnership (Limited Partnership)
(Seal)

/s/ Song Zhang
Name: Song Zhang
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Hangzhou Heda Biotech Investment Partnership (Limited Partnership)
(Seal)

/s/ Yufeng Jin
Name: Yufeng Jin
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Xiamen Ronghui Derong Equity Investment Partnership (Limited Partnership)
(Seal)

/s/ Wenwen Zhang
Name: Wenwen Zhang
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Zhuzhou Guochuang Junyao Investment Partnership (Limited Partnership)
(Seal)

/s/ Xiaohu Xin
Name: Xiaohu Xin
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Hangzhou Haibang Yigu Investment Partnership (Limited Partnership)
(Seal)

/s/ Li Xie
Name: Li Xie
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

/s/ Jialiang Shan
Name: Jialiang Shan

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Zhejiang Silu Industry Investment Fund Partnership (Limited Partnership)
(Seal)

/s/ Guanxin Zhou
Name: Guanxin Zhou
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Viva Biotech (Shanghai) Ltd.
(Seal)

/s/ Ying Wu
Name: Ying Wu
Position: COO

Signature Page to Shareholders Agreement

    
IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Tianjin Huatian Enterprise Management Consultation Limited Partner (Limited Partner)
(Seal)

/s/ Zhanyue Yang
Name: Zhanyue Yang
Position: Authorized signatory

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Qingdao Xinneng Property Management Co., Ltd.
(Seal)

/s/ Ning Xu
Name: Ning Xu
Position: Legal Representative

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Hangzhou Yijing Biotech Partnership (Limited Partnership)
(Seal)

/s/ Lili Qian
Name: Lili Qian
Position: Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Existing Shareholder:

Hangzhou Lanjing Biotech Partnership (Limited Partnership)
(Seal)

/s/ Lili Qian
Name: Lili Qian
Position: Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Lili Qian
Lili Qian

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Zhengsong Zhang
Zhengsong Zhang

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Yunfei Zhang
Yunfei Zhang

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Lihong Lou
Lihong Lou

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Kai Zhou
Kai Zhou

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

The Management:

/s/ Fang Yin
Fang Yin

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Huzhou Jingyun Equity Investment Partnership (Limited Partnership)
(Seal)

/s/ Danjun Kong
Name: Danjun Kong
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Pingtan Wenzhou Ruihe Investment Partnership (Limited Partnership)
(Seal)

/s/ Shuguang Wang
Name: Shuguang Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Pingtan Wenzhou Ruizhi Investment Partnership (Limited Partnership)
(Seal)

/s/ Shuguang Wang
Name: Shuguang Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Jiaxing Hongtong Investment Partnership (Limited Partnership)
(Seal)

/s/ Haifang Wang
Name: Haifang Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Qingdao Zhongou Industry Investment Partnership (Limited Partnership)
(Seal)

/s/ Yuanyi Ji
Name: Yuanyi Ji
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Qingdao Haiyang Innovation Investment Co., Ltd.
(Seal)

/s/ Bingbing Liu
Name: Bingbing Liu
Position: Delegated Representative of Legal Representative

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Ningbo Yijing Management Partnership (Limited Partnership)
(Seal)

/s/ Lili Qian
Name: Lili Qian
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Ningbo Hangjing Management Partnership (Limited Partnership)
(Seal)

/s/ Lei Wang
Name: Lei Wang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

IN  WITNESS  WHEREOF,  the  Parties  have  been  in  person  or  caused  their  respective  authorized  representatives  to  execute  this
Agreement on the date first above written.

Series B Round Investor:

Ningbo Zhengjing Management Partnership (Limited Partnership)
(Seal)

/s/ Daling Zhang
Name: Daling Zhang
Position: Delegated Representative of Executive Affairs Partner

Signature Page to Shareholders Agreement

Shareholding Structure Immediately After Completion of the Transactions

Schedule 1

Schedule 1

Schedule 2
List of Competitors of the Company

Schedule 2

List of Principal Subsidiaries of I-MAB

EXHIBIT 8.1

Name of Subsidiary
I-Mab Biopharma Hong Kong Limited
I-Mab Biopharma US Ltd.
I-Mab Bio-tech (Tianjin) Co., Ltd.
I-Mab Biopharma Co., Ltd.
Zhejiang Tianli Pharmaceutical Sales Co., Ltd.
I-Mab Pharmaceutical (Shanghai) Co., Ltd.
Thirdventure Beijing Bio-tech Co., Ltd.
Eftan Biotech (Shanghai) Co., Ltd.

Place of Incorporation
Hong Kong
United States
People’s Republic of China
People’s Republic of China
People’s Republic of China
People’s Republic of China
People’s Republic of China
People’s Republic of China

    
Certification by the Principal Executive Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EXHIBIT 12.1

I, Andrew Zhu, certify that:

1.

I have reviewed this annual report on Form 20-F of I-Mab (the “Company”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to
the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all

material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in
this report;

4. The Company’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as

defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act
Rules 13a-15(f) and 15d-15(f)) for the Company and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our

supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the Company’s disclosure controls and procedures and presented in this report our conclusions

about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on
such evaluation; and

(d) Disclosed in this report any change in the Company’s internal control over financial reporting that occurred during the period

covered by the annual report that has materially affected, or is reasonably likely to materially affect, the Company’s internal
control over financial reporting;

5. The Company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial
reporting, to the Company’s auditors and the audit committee of the Company’s board of directors (or persons performing the
equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which

are reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information;
and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s

internal control over financial reporting.

Date: May 1, 2023

/s/ Andrew Zhu

By:
Name: Andrew Zhu
Title:

Director, President and Acting Chief Executive Officer

Certification by the Principal Financial Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EXHIBIT 12.2

I, Richard Yeh, certify that:

1.

I have reviewed this annual report on Form 20-F of I-Mab (the “Company”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to
the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all

material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in
this report;

4. The Company’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as

defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act
Rules 13a-15(f) and 15d-15(f)) for the Company and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our

supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the Company’s disclosure controls and procedures and presented in this report our conclusions

about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on
such evaluation; and

(d) Disclosed in this report any change in the Company’s internal control over financial reporting that occurred during the period
covered by this annual report that has materially affected, or is reasonably likely to materially affect, the Company’s internal
control over financial reporting; and

5. The Company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial
reporting, to the Company’s auditors and the audit committee of the Company’s board of directors (or persons performing the
equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which

are reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information;
and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s

internal control over financial reporting.

Date: May 1, 2023

/s/ Richard Yeh

By:
Name: Richard Yeh
Title:

Interim Chief Financial Officer

EXHIBIT 13.1

Certification by the Principal Executive Officer
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Annual Report of I-Mab (the “Company”) on Form 20-F for the year ended December 31, 2022 as filed with

the Securities and Exchange Commission on the date hereof (the “Report”), I, Andrew Zhu, Acting Chief Executive Officer of the
Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my
knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations

of the Company.

Date: May 1, 2023

/s/ Andrew Zhu

By:
Name: Andrew Zhu
Title:

Director, President and Acting Chief Executive Officer

EXHIBIT 13.2

Certification by the Principal Financial Officer
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Annual Report of I-Mab (the “Company”) on Form 20-F for the year ended December 31, 2022 as filed with

the Securities and Exchange Commission on the date hereof (the “Report”), I, Richard Yeh, Interim Chief Financial Officer of the
Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my
knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations

of the Company.

Date: May 1, 2023

/s/ Richard Yeh

By:
Name: Richard Yeh
Title:

Interim Chief Financial Officer

Exhibit 15.1

26/F HKRI Centre One, HKRI Taikoo Hui,
288 Shimen Road (No. 1),
Shanghai 200041, P.R. China
T: (86-21) 5298-5488
F: (86-21) 5298-5492
junhesh@junhe.com

May 1, 2023

I-Mab
55th Floor, New Bund Center
555 West Haiyang Road
Pudong District, Shanghai
People’s Republic of China

Dear Sir/Madam:

We hereby consent to the reference of our name under the headings “Item 3. Key Information—D. Risk Factors—Risks Related to Doing
Business in China” and “Item 10. Additional Information—E. Taxation—PRC Taxation” in I-Mab’s Annual Report on Form 20-F for the
year ended December 31, 2022 (the “Annual Report”), which will be filed with the Securities and Exchange Commission (the “SEC”)
on the date hereof, and further consent to the incorporation by reference into the Registration Statements on Form S-8 (No. 333-239871,
No. 333-256603 and No. 333-265684) and Form F-3 (No. 333-252793) of I-Mab of the summary of our opinions under the headings
“Item  3.  Key  Information—D.  Risk  Factors—Risks  Related  to  Doing  Business  in  China”  and  “Item  10.  Additional  Information—E.
Taxation—PRC Taxation” in the Annual Report. We also consent to the filing of this consent letter with the SEC as an exhibit to the
Annual Report.

In giving such consent, we do not thereby admit that we come within the category of persons whose consent is required under Section 7
of the Securities Act of 1933, or under the Securities Exchange Act of 1934, in each case, as amended, or the regulations promulgated
thereunder.

Very truly yours,

/s/ JunHe LLP
JunHe LLP

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-239871, No. 333-256603 and
No. 333-265684) of I-Mab of our report dated May 1, 2023 relating to the financial statements and the effectiveness of internal control
over financial reporting, which appears in this Form 20-F.

Exhibit 15.2

/s/PricewaterhouseCoopers Zhong Tian LLP
Shanghai, the People’s Republic of China
May 1, 2023

Exhibit 15.3

Harney Westwood & Riegels
3501 The Center
99 Queen’s Road Central
Hong Kong
Tel: +852 5806 7800
Fax: +852 5806 7810

057753.0003

Date: 1 May 2023

I-Mab 天境生物
55th Floor, New Bund Center
555 West Haiyang Road
Pudong District, Shanghai
People’s Republic of China

Dear Sir or Madam

I-Mab 天境生物 (the Company)

We are attorneys-at-law qualified to practice in the Cayman Islands and have acted as Cayman Islands legal advisers to the Company in
connection with the filing by the Company with the United States Securities and Exchange Commission (the SEC) of an annual report on
Form 20-F for the year ended 31 December 2022 (the Form 20-F).

We hereby consent to the reference of our name under the headings “Item 5. Operating and Financial Review and Prospects –Taxation –
Cayman Islands” and “Item 10. Additional Information—E. Taxation—Cayman Islands Taxation” in the Form 20-F and further consent
to the incorporation by reference of the summary of our opinion under those headings into the Company’s Registration Statements on
Form S-8 (No. 333-239871, No. 333-256603 and No. 333-265684) and Form F-3 (No. 333-252793).

We consent to the filing with the SEC of this consent letter as an exhibit to the Form 20-F. In giving such consent, we do not thereby
admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, or under the
Securities Exchange Act of 1934, in each case, as amended, or the regulations promulgated thereunder.

[signature page to follow]

The British Virgin Islands is Harneys Hong Kong office’s main jurisdiction of practice.
Jersey legal services are provided through a referral arrangement with Harneys (Jersey) which is
an independently owned and controlled Jersey law firm.
Resident Partners: M Chu | I Clark | JP Engwirda | Y Fan | P Kay | MW Kwok
IN Mann | R Ng | ATC Ridgers | PJ Sephton
167896.01A-BEISR01A - MSW

Anguilla | Bermuda | British Virgin Islands | Cayman Islands
Cyprus | Hong Kong | Jersey | London | Luxembourg
Montevideo | São Paulo | Shanghai | Singapore
harneys.com

Yours faithfully

/s/ Harney Westwood & Riegels
Harney Westwood & Riegels

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