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FibroGen

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FY2022 Annual Report · FibroGen
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 10-K

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

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

1934

For the fiscal year ended December 31, 2022

OR

For the transition period from            to           .

Commission file number: 001-36740 

FIBROGEN, INC.

(Exact name of registrant as specified in its charter) 

Delaware
(State or other jurisdiction of incorporation or organization)

77-0357827
(I.R.S. Employer Identification No.)

409 Illinois Street
San Francisco, CA
(Address of principal executive offices)

94158
(zip code)

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

Registrant’s telephone number, including area code:
(415) 978-1200 

Title of each class
Common Stock, $0.01 par value

Trading Symbol
FGEN

Name of each exchange on which registered
The Nasdaq Global Select Market

Securities registered pursuant to Section 12(g) of the Act:
None

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

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ☐     No  ☑
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 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, a smaller reporting company, or an emerging growth company. See 

the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer
Non-accelerated filer
Emerging growth company

☑
☐  
☐

Accelerated filer
Smaller reporting company

☐
☐

If an emerging growth company, 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.     ☐    

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 accounting 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 whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ☐    No  ☑
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant, computed by reference to the closing price as of the last business day of 

the registrant’s most recently completed second fiscal quarter, June 30, 2022, was approximately $975.1 million. Shares of common stock held by each executive officer and director have been 
excluded since such persons may be deemed affiliates. This determination of affiliate status is not necessarily a conclusive determination for other purposes.

The number of shares of common stock outstanding as of January 31, 2023 was 94,182,915.

 
 
 
 
 
 
  
  
  
  
 
 
 
 
 
  
   
  
  
   
  
  
   
 
  
 
 
Items 10, 11, 12, 13 and 14 of Part III of this Annual Report on Form 10-K for the year ended December 31, 2022 (the “Annual Report”) incorporate information by reference from the 

definitive proxy statement for the registrant’s 2023 Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than after 120 
days after the end of the fiscal year covered by this Annual Report.

DOCUMENTS INCORPORATED BY REFERENCE

 
 
TABLE OF CONTENTS

  Forward-Looking Statements
  Risk Factor Summary
  China Operations and Related Risks

PART I

Item 1.

   Business

Item 1A.

   Risk Factors

Item 1B.

   Unresolved Staff Comments

Item 2.

   Properties

Item 3.

   Legal Proceedings

Item 4.

   Mine Safety Disclosures

PART II

Item 5. 

   Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Item 6.

   [Reserved]

Item 7.

   Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 7A.

   Quantitative and Qualitative Disclosure About Market Risks

Item 8.

   Consolidated Financial Statements and Supplementary Data

Item 9.

   Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Item 9A.

   Controls and Procedures

Item 9B.

   Other Information

Item 9C.

   Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

PART III

Item 10.

   Directors, Executive Officers and Corporate Governance

Item 11.
Item 12.

   Executive Compensation

   Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Item 13.

   Certain Relationships and Related Transactions, and Director Independence

Item 14.

   Principal Accountant Fees and Services

PART IV

Item 15.
Item 16.

   Exhibits and Financial Statement Schedules
  Form 10-K Summary

   Signatures

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FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K for the year ended December 31, 2022 (“Annual Report”) and the information incorporated herein by reference, 
particularly in the sections captioned “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and 
“Business,” contains forward-looking statements, which involve substantial risks and uncertainties. In this Annual Report, all statements other than 
statements of historical or present facts contained in this Annual Report, including statements regarding our future financial condition, business strategy 
and plans and objectives of management for future operations, are forward-looking statements. In some cases, you can identify forward-looking statements 
by terminology such as “believe,” “will,” “may,” “estimate,” “continue,” “anticipate,” “contemplate,” “intend,” “target,” “project,” “should,” “plan,” 
“expect,” “predict,” “could,” “potentially” or the negative of these terms or other similar terms or expressions that concern our expectations, strategy, 
plans or intentions. Forward-looking statements appear in a number of places throughout this Annual Report and include statements regarding our 
intentions, beliefs, projections, outlook, analyses or current expectations concerning, among other things, our ongoing and planned preclinical 
development and clinical trials, the timing of and our ability to make regulatory filings and obtain and maintain regulatory approvals for roxadustat, 
pamrevlumab and our other product candidates, our intellectual property position, the potential safety, efficacy, reimbursement, convenience clinical and 
pharmaco-economic benefits of our product candidates, the potential markets for any of our product candidates, our ability to develop commercial 
functions, our ability to operate in the People’s Republic of China (“China”), expectations regarding clinical trial data, our results of operations, cash 
needs, spending of the proceeds from our initial public offering, financial condition, liquidity, prospects, growth and strategies, the industry in which we 
operate and the trends that may affect the industry or us. We have based these forward-looking statements largely on our current expectations and 
projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial 
needs. 

These forward-looking statements are subject to a number of risks, uncertainties and assumptions described in the section of this Annual Report captioned 
“Risk Factors” and elsewhere in this Annual Report. A summary of these risk factors can be found in the following section, however, please refer to the full 
risk factors in Item 1A “Risk Factors.” These risks are not exhaustive. Other sections of this Annual Report may include additional factors that could 
adversely impact our business and financial performance. Moreover, we operate in a very competitive and rapidly changing 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, or implied by, any forward-
looking statements.

You should not rely upon forward-looking statements as predictions of future events. We cannot assure you that the events and circumstances reflected in 
the forward-looking statements will be achieved or occur. Although we believe that the expectations reflected in the forward-looking statements are 
reasonable, we cannot guarantee future results, levels of activity, performance or achievements. The forward-looking statements made in this Annual 
Report are based on circumstances as of the date on which the statements are made. Except as required by law, we undertake no obligation to update 
publicly any forward-looking statements for any reason after the date of this Annual Report or to conform these statements to actual results or to changes 
in our expectations.

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based upon 
information available to us as of the date of this Annual Report, and while we believe such information forms a reasonable basis for such statements, such 
information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review 
of, all potentially available relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these 
statements.

This Annual Report also contains market data, research, industry forecasts and other similar information obtained from or based on industry reports and 
publications, including information concerning our industry, our business, and the potential markets for our product candidates, including data regarding 
the estimated size and patient populations of those and related markets, their projected growth rates and the incidence of certain medical conditions, as 
well as physician and patient practices within the related markets. Such data and information involve a number of assumptions and limitations, and you are 
cautioned not to give undue weight to such estimates.

You should read this Annual Report with the understanding that our actual future results, levels of activity, performance and achievements may be 
materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.

2

 
 
 
RISK FACTOR SUMMARY

The success of FibroGen will depend on a number of factors, many of which are beyond our control and involve risks, including but not limited to the 
following:

Risks Related to the Development and Commercialization of Our Product Candidates

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We are substantially dependent on the success of our lead products pamrevlumab and roxadustat. 

As a company, we have limited late-stage development and commercialization experience, and the time and resources required to develop such 
experience are significant.

Drug development and obtaining marketing authorization is a very difficult endeavor and we may ultimately be unable to obtain regulatory approval 
for our various product candidates in one or more jurisdictions and in one or more indications.

The complete response letter we received from the FDA for roxadustat has decreased the likelihood of approval and successful commercialization of 
roxadustat in the U.S. and potentially other markets. There is a significant risk that our U.S./Rest of World Collaboration Agreement with 
AstraZeneca will be amended or terminated. 

Preclinical, Phase 1 and Phase 2 clinical trial results may not be indicative of the results that may be obtained in larger clinical trials.

We do not know whether our ongoing or planned clinical trials of roxadustat or pamrevlumab will need to be redesigned based on interim results or 
if we will be able to achieve sufficient patient enrollment or complete planned clinical trials on schedule.

Our product candidates may cause or have attributed to them undesirable side effects or have other properties that delay or prevent their regulatory 
approval or limit their commercial potential.

If our manufacturers or we cannot properly manufacture the appropriate volume of product, we may experience delays in development, regulatory 
approval, launch or successful commercialization. 

We face substantial competition in the discovery, development and commercialization of product candidates. 

Our product candidates may not achieve adequate market acceptance among physicians, patients, healthcare payors, and others in the medical 
community necessary for commercial success.

Risks Related to Our Reliance on Third Parties

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If our collaborations were terminated or if Astellas or AstraZeneca were to prioritize other initiatives over their collaborations with us, our ability to 
successfully develop and commercialize our product candidates would suffer. 

If our preclinical and clinical trial contractors do not properly perform their agreed upon obligations, we may not be able to obtain or may be 
delayed in receiving regulatory approvals for our product candidates.

We currently rely, and expect to continue to rely, on third parties to conduct many aspects of our product manufacturing and distribution, and these 
third parties may terminate these agreements or not perform satisfactorily.

We may experience delays or technical problems associated with technology transfer, scale-up, or validation of our biologics manufacturing. 

Certain components of our products are acquired from single-source suppliers or without long-term supply agreements. The loss of these suppliers, 
or their failure to supply, would materially and adversely affect our business. 

Risks Related to Our Intellectual Property

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If our efforts to protect our proprietary technologies are not adequate, we may not be able to compete effectively in our market.

Our reliance on third parties and agreements with collaboration partners requires us to share our trade secrets, which increases the possibility that a 
competitor may discover them or that our trade secrets will be misappropriated or disclosed.

The cost of maintaining our patent protection is high and requires continuous review and diligence. We may not be able to effectively maintain our 
intellectual property position throughout the major markets of the world.

The laws of some foreign countries do not protect proprietary rights to the same extent as do the laws of the U.S., and we may encounter significant 
problems in securing and defending our intellectual property rights outside the U.S.

3

 
Risks Related to Government Regulation

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The regulatory approval process is highly uncertain and we may not obtain regulatory approval for our product candidates.

Our current and future relationships with customers, physicians, and third-party payors are subject to healthcare fraud and abuse laws, false claims 
laws, transparency laws, and other regulations. If we are unable to comply with such laws, we could face substantial penalties.

We are subject to stringent and evolving U.S. and foreign laws, regulations, rules, contractual obligations, policies and other obligations related to 
data privacy and security. Our actual or perceived failure to comply with such obligations could lead to regulatory investigations or actions; 
litigation; fines and penalties; disruptions of our business operations; reputational harm; loss of revenue or profits; and other adverse business 
consequences.

Risks Related to Our International Operations

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We have established operations in China and are seeking approval to commercialize our product candidates outside of the U.S., and a number of 
risks associated with international operations could materially and adversely affect our business. 

The pharmaceutical industry in China is highly regulated and such regulations are subject to change.

We use our own manufacturing facilities in China to produce roxadustat API and drug product for the market in China. There are risks inherent to 
operating commercial manufacturing facilities, and with these being our single source suppliers, we may not be able to continually meet market 
demand.

We may experience difficulties in successfully growing and sustaining sales of roxadustat in China.

The retail prices of any product candidates that we develop will be subject to pricing control in China and elsewhere.

FibroGen Beijing would be subject to restrictions on paying dividends or making other payments to us, which may restrict our ability to satisfy our 
liquidity requirements.

Our foreign operations, particularly those in China, are subject to significant risks involving the protection of intellectual property.

Uncertainties with respect to the China legal system and regulations could have a material adverse effect on us.

Changes in China’s economic, governmental, or social conditions could have a material adverse effect on our business.

CHINA OPERATIONS AND RELATED RISKS

We are incorporated in the state of Delaware. We operate within the Chinese market through FibroGen (China) Medical Technology Development Co., Ltd. 
(“FibroGen Beijing”), a wholly-owned subsidiary established in Beijing. FibroGen Beijing consists of development and commercialization operations as 
well as a drug product manufacturing facility. FibroGen Beijing holds the regulatory licenses issued by the Chinese regulatory authorities in respect of 
roxadustat. FibroGen Beijing has two branch offices located in Shanghai and Cangzhou, China. The branch office in Cangzhou operates a drug substance 
manufacturing facility. FibroGen Beijing also owns 51.1% of Beijing Falikang Pharmaceutical Co. Ltd. (“Falikang”), a joint venture established by 
FibroGen and operated in conjunction with AstraZeneca Investment (China) Co., Ltd. for the purpose of distributing our sole drug product approved for 
sale in China, roxadustat. Falikang conducts distribution activities for roxadustat within China while AstraZeneca Investment (China) Co., Ltd., 
AstraZeneca AB (“AstraZeneca”) and AstraZeneca (Wuxi) Trading Co., Ltd. provide sales and marketing services in support of roxadustat. Thus, 
stockholders of FibroGen, Inc. have an ownership interest in the joint venture, Falikang, through the FibroGen, Inc. equity ownership in our subsidiaries, 
including FibroGen Beijing.

For a full discussion of our business in China, please see the section below titled “China - Roxadustat Commercial Program” as well as the sections titled 
“ANEMIA ASSOCIATED WITH MYELODYSPLASTIC SYNDROMES” and “CHEMOTHERAPY-INDUCED ANEMIA.” We summarize certain risks 
associated with our operations in China in this section, however, please refer also to the section of this Annual Report captioned “Item 1A. Risk Factors” 
for additional risks related to our international operations. 

4

 
To operate our business in China, each of our Chinese subsidiaries (and our joint venture with AstraZeneca, Falikang) is required to and does obtain a 
business license from the local counterpart of the State Administration for Market Regulation. Such business licenses list the business activities we are 
authorized to carry out and we would be noncompliant if we act outside of the scope of business activities set forth under the relevant business license. Due 
to China’s regulatory framework in general and for the pharmaceutical industry specifically, we are required to apply for and maintain many approvals or 
permits specific to many of our business activities, including but not limited to manufacturing, distribution, environmental protection, workplace safety and 
cybersecurity, from both national and local government agencies. For certain of our clinical trials conducted in China, we need to obtain, through the 
clinical sites, permits from the Human Genetic Resource Administrative Commission to collect samples that include human genetic resources, such as 
blood samples. We may also be required to obtain certain approvals from Chinese authorities before transferring certain scientific data abroad or to foreign 
parties or entities established or actually controlled by them. If we are unable to obtain the necessary approvals or permissions in order to operate our 
business in China, or if we inadvertently conclude that such approvals or permissions are not required, or if we are subject to additional requirements, 
approvals, or permissions, it could have an adverse effect on our business, financial condition and results of operations, our ability to raise capital and the 
market price of our common stock.

Due to our operations in China and the United States (“U.S.”), any unfavorable government policies on cross-border relations and/or international trade 
(including increased scrutiny on companies with significant China-based operations, capital controls or tariffs) may affect the competitive position of our 
drug products, the hiring of personnel, the demand for our drug products, the import or export of products and product components, our ability to raise 
capital, the market price of our common stock, or prevent us from selling our drug products in certain countries. While we do not operate in an industry that 
is currently subject to foreign ownership limitations in China, China could decide to limit foreign ownership in our industry, in which case there could be a 
risk that we would be unable to do business in China as we are currently structured.

Cash flows from Falikang and cash flows into FibroGen Beijing are currently intended to remain onshore in China. Our long-term plans for distributing 
cash flows from FibroGen Beijing may involve any number of scenarios including keeping the money onshore to fund future expansion of our China 
operations and paying down certain debt obligations. To date, no such debt repayments have occurred, nor have there been any other payments or 
distributions from FibroGen Beijing to entities or investors outside of China. Our capital contributions to FibroGen Beijing and the liquidity position of 
FibroGen Beijing depend on many factors, including those set forth under Part I, Item 1A “Risk Factors” in this Annual Report.

Our independent registered public accounting firm, PricewaterhouseCoopers LLP, is headquartered in the U.S. and was not identified in the Public 
Company Accounting Oversight Board (“PCAOB”) report dated December 16, 2021 as a firm that the PCAOB was unable to inspect. Therefore, the 
Holding Foreign Companies Accountable Act does not apply to us.

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ITEM 1. BUSINESS

OVERVIEW

PART I 

FibroGen, Inc. is a leading biopharmaceutical company discovering, developing and commercializing a pipeline of first-in-class therapeutics. Our lead 
product candidate and product are pamrevlumab and roxadustat, respectively.

Pamrevlumab, a human monoclonal antibody targeting connective tissue growth factor, is in Phase 3 clinical development for the treatment of idiopathic 
pulmonary fibrosis, locally advanced unresectable pancreatic cancer, and Duchenne muscular dystrophy. To date, we have retained exclusive worldwide 
rights for pamrevlumab.

Roxadustat is an oral small molecule inhibitor of hypoxia-inducible factor prolyl hydroxylase (“HIF-PH”) activity. Roxadustat (爱瑞卓®, EVRENZOTM) is 
approved in China, Europe, Japan, and numerous other countries for the treatment of anemia in chronic kidney disease (“CKD”) for patients who are on 
dialysis and not on dialysis.

We are well positioned over the next 18 months to report topline results from seven pivotal clinical studies with two different drug candidates:

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Pamrevlumab - our first-in-class antibody developed to inhibit the activity of connective tissue growth factor (“CTGF”), a common factor in 
fibrotic and fibro-proliferative disorders characterized by persistent and excessive scarring that can lead to organ dysfunction and failure. Our 
pivotal clinical trials in this indication are:

o

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LELANTOS-1, a Phase 3 study of pamrevlumab in non-ambulatory Duchenne muscular dystrophy (“DMD”) – topline data expected in the 
second quarter of 2023;

ZEPHYRUS-1, a Phase 3 study of pamrevlumab in idiopathic pulmonary fibrosis (“IPF”) – topline data expected in mid-2023;

LELANTOS-2, a Phase 3 study of pamrevlumab in ambulatory DMD – topline data expected in the third quarter of 2023;

LAPIS, a Phase 3 study of pamrevlumab in locally advanced unresectable pancreatic cancer (“LAPC”) – topline data expected in in the first 
half of 2024; and

ZEPHYRUS-2, a second Phase 3 study of pamrevlumab in IPF – topline data expected in mid-2024.

Roxadustat - our commercial-stage product, an oral small molecule inhibitor of HIF-PH activity that acts by stimulating the body’s natural pathway 
of erythropoiesis, or red blood cell production. Our pivotal clinical trials in this indication are:

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MATTERHORN, a Phase 3 study of roxadustat in myelodysplastic syndromes (“MDS”) – topline data expected in the second quarter of 
2023; and

Phase 3 study in China of roxadustat in chemotherapy-induced anemia (“CIA”) – topline data expected in the second quarter of 2023.

Our goal is to build a diversified pipeline with novel drugs that will address unmet patient needs in oncology, immunology, and fibrosis. We expect to file 
up to two INDs in the second half of 2023: one for an antibody targeting CCR8; and the other for an antibody targeting Galectin-9.

The following is an overview of our clinical and commercial programs. 

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PAMREVLUMAB FOR THE TREATMENT OF FIBROSIS AND CANCER

Our research and discovery work indicate that CTGF is a critical common element in the progression of serious diseases associated with fibrosis.

From our library of human monoclonal antibodies that bind to different parts of the CTGF protein and block various aspects of CTGF biological activity, 
we selected pamrevlumab, for which we have exclusive worldwide rights. In preclinical studies we demonstrated that pamrevlumab disrupts the fibrosis-
promoting activity of CTGF, and based on those data believe that it can inhibit the central role of CTGF in causing diseases associated with fibrosis. Our 
data to date indicate that pamrevlumab is a promising and highly differentiated product candidate with broad potential to treat a number of fibrotic diseases 
and cancers. 

We have sponsored clinical trials of pamrevlumab in IPF, pancreatic cancer, DMD, liver fibrosis, and diabetic kidney disease. In clinical studies involving 
more than 1,000 pamrevlumab-treated patients (approximately half of whom were dosed for more than six months), pamrevlumab has been well-tolerated 
across the range of doses studied, and there have been no dose-limiting toxicities seen thus far. 

The U.S. Food and Drug Administration (“FDA”) has granted Fast Track and Orphan Drug designations to pamrevlumab for the treatment of IPF, LAPC, 
and DMD (with DMD also receiving Rare Pediatric Disease designation).

To date, we have retained exclusive worldwide rights for pamrevlumab. We are advancing our brand development activities for pamrevlumab in 
preparation for potential launches in IPF, LAPC and DMD.

In the next 18 months, we expect to report topline results from each of our five ongoing Phase 3 studies of pamrevlumab. 

Overview of Fibrosis

Fibrosis is an aberrant response of the body to tissue injury that may be caused by trauma, inflammation, infection, cell injury, or cancer. The normal 
response to injury involves the activation of cells that produce collagen and other components of the extracellular matrix (“ECM”) that are part of the 
healing process. This healing process helps to fill in tissue voids created by the injury or damage, segregate infections or cancer, and provide strength to the 
recovering tissue. Under normal circumstances, where the cause of the tissue injury is limited, the scarring process is self-limited and the scar resolves to 
approximate normal tissue architecture. However, in certain disease states, this process is prolonged and excessive and results in progressive tissue 
scarring, or fibrosis, which can cause organ dysfunction and failure as well as, in the case of certain cancers, promote cancer progression.

Excess CTGF levels are associated with fibrosis. CTGF increases the abundance of myofibroblasts, a cell type that drives wound healing, and stimulates 
them to deposit ECM proteins such as collagen at the site of tissue injury. In the case of normal healing of a limited tissue injury, myofibroblasts eventually 
die by programmed cell death, or apoptosis, and the fibrous scarring process recedes.

Multiple proteins and signaling pathways have been implicated in the fibrotic process, many of which converge on CTGF, a central mediator of fibrosis. In 
the case of cancer, tumor-associated fibrotic tissue can promote tumor cell survival and metastasis. CTGF is a secreted glycoprotein produced by 
fibroblasts, endothelium, mesangial cells and other cell types, including cancers, and is induced by a variety of regulatory modulators, including TGF-ß and 
VEGF. CTGF expression has been demonstrated to be up-regulated in fibrotic tissues. Thus, we focused on targeting CTGF to block or inhibit its activity to 
mitigate, stop or reverse tissue fibrosis. In addition, since CTGF is implicated in nearly all forms of fibrosis, we believe pamrevlumab has the potential to 
provide clinical benefit in a wide range of clinical indications that are characterized by fibrosis.

Until recently, it was believed that fibrosis was an irreversible process. It is now generally understood that the process is dynamic and potentially amenable 
to reversal. Based on studies in animal models of fibrosis of the liver, kidney, muscle and cardiovascular system, it has been shown that fibrosis can be 
reversed. It has also been demonstrated in humans that fibrosis caused by hepatitis virus can be reversed (Chang et al. Hepatology (2010)). Additionally, we 
generated data in human and animal studies suggesting that lung fibrosis progression can be slowed, arrested, or possibly reversed in some instances upon 
treatment with pamrevlumab. 

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IDIOPATHIC PULMONARY FIBROSIS

Understanding IPF and Current Therapies

IPF is a form of progressive pulmonary fibrosis, or abnormal scarring, which destroys the structure and function of the lungs. As tissue scarring progresses 
in the lungs, transfer of oxygen into the bloodstream is increasingly impaired. Average life expectancy at the time of confirmed diagnosis of IPF is 
estimated to be between three to five years, with approximately two-thirds of patients dying within five years of diagnosis. Thus, the survival rates are 
comparable to some of the most deadly cancers. The cause of IPF is unknown but is believed to be related to injury to the alveolar epithelial cells, 
inflammation and fibrosis.

Patients with IPF experience debilitating symptoms, including shortness of breath and difficulty performing routine functions, such as walking and talking. 
Other symptoms include chronic dry, hacking cough, fatigue, weakness, discomfort in the chest, loss of appetite, and weight loss. Over the last decade, 
refinements in diagnosis criteria and enhancements in high-resolution computed tomography imaging technology (“quantitative HRCT”) have enabled 
more reliable diagnosis of IPF without the need for a lung biopsy.

Based on numerous sources, we estimate the U.S. prevalence and incidence of IPF to be approximately 120,000 cases, and 30,000 new cases per year, 
respectively, and the global prevalence of IPF to be 330,000 cases (including the major regions of U.S., Europe, Japan, and China. We believe that with the 
availability of technology to enable more accurate diagnoses, the number of individuals diagnosed per year with IPF will continue to increase.

There are currently two anti-fibrotic therapies approved to treat IPF in Europe and the U.S., pirfenidone and nintedanib, which have shown the commercial 
potential in IPF with over $4 billion in worldwide sales in 2021. Hoffmann-La Roche (“Roche”) reported worldwide sales of approximately $1.12 billion in 
2021 for Esbriet (pirfenidone). Boehringer Ingelheim Pharma GmbH & Co. KG (“Boehringer Ingelheim”) reported total sales of approximately $2.9 billion 
for Ofev (nintedanib) in 2021.

Phase 3 Clinical Trials of Pamrevlumab in IPF

We are conducting two Phase 3 trials of pamrevlumab in IPF patients, ZEPHYRUS-1 and ZEPHYRUS-2.

Similar to PRAISE, our randomized and completed Phase 2 trial in 101 IPF patients described below, both of these Phase 3 studies are double-blind, 
placebo-controlled trials with a primary efficacy endpoint of change in forced vital capacity (“FVC”) at 48 weeks. FVC is a lung function test measuring 
the volume of air exhaled by a patient. 

We amended the ZEPHYRUS-2 protocol to harmonize the primary endpoint between the U.S. and Europe as change in FVC. Previously the primary 
endpoint for Europe was disease progression (as defined below), with change in FVC as a key secondary endpoint. This change makes the primary 
endpoint for both studies consistent with other recent pivotal trials in IPF that formed the basis of regulatory approval in the U.S. and Europe.

Secondary efficacy endpoints for each study include disease progression (defined by a decline in FVC percent predicted of greater than or equal to 10% or 
death), acute IPF exacerbation, and quantitative changes in lung fibrosis volume from baseline. 

We have completed enrollment of ZEPHYRUS-1, our first Phase 3 trial of pamrevlumab in 356 IPF patients, and we expect topline data from 
ZEPHYRUS-1 in mid-2023.

We continue to enroll patients in ZEPHYRUS-2, our second Phase 3 trial of pamrevlumab in approximately 340 IPF patients, and we expect topline data 
from ZEPHYRUS-2 in mid-2024.

Phase 2 Clinical Trial of Pamrevlumab in IPF

Positive results from PRAISE were published in The Lancet Respiratory Medicine (September 2019). PRAISE was designed to evaluate the safety and 
efficacy of pamrevlumab in patients with mild-to-moderate IPF (baseline FVC percentage predicted of 55%), as well as topline results from two sub-
studies that were added to evaluate the safety of combining pamrevlumab with approved IPF therapies.

8

 
In the double-blind, placebo-controlled 48-week portion of this study, 103 patients were randomized (1:1) to receive either 30mg/kg of pamrevlumab or 
placebo intravenously every three weeks. Lung function assessments were conducted at baseline and at Weeks 12, 24, 36 and 48. Quantitative HRCT 
assessments of lung fibrosis volume were performed at baseline and at Weeks 24 and 48.

Pamrevlumab met the primary efficacy endpoint of change of FVC percent predicted, a measure of a patient’s lung volume as a percentage of what would 
be expected for such patient’s age, race, sex and height. The average decline (least squares mean) in FVC percent predicted from baseline to Week 48 was 
2.9 in the pamrevlumab arm (n=50) as compared to an average decline of 7.2 in the placebo arm (n=51), a statistically significant difference of 4.33 
(p=0.033).

FVC Change by Visit

Pamrevlumab-treated patients had an average decrease (least squares mean) in FVC of 129 ml at Week 48 compared to an average decrease of 308 ml in 
patients receiving placebo, a statistically significant difference of 178 ml (p=0.0249, using a linear slope analysis in the intent-to-treat population). This 
represents a 57.9% relative difference. In addition, the pamrevlumab-treated arm had a lower proportion of patients (10%) who experienced disease 
progression (defined by a decline in FVC percent predicted of greater than or equal to 10% or death), than did the placebo arm (31.4%) at Week 48 
(p=0.0103).

Proportion of Patients with Decline in Percentage of Predicted FVC of 10% or Greater, or Death, by Visit

9

 
 
 
In this study, we measured change in quantitative lung fibrosis (“QLF”) from baseline to Week 24 and Week 48 using quantitative HRCT. The 
pamrevlumab arm achieved a statistically significant reduction in the rate of progression of lung fibrosis compared to placebo using HRCT to measure 
QLF. The change in QLF volume from baseline to Week 24 for pamrevlumab-treated patients was 24.8 ml vs. 86.4 ml for placebo, with a treatment 
difference of -61.6 ml (p=0.009). The change in QLF volume from baseline to 48 weeks was 75.4 ml in pamrevlumab-treated patients vs. 151.5 ml in 
patients on placebo, with a treatment difference of -76.2 ml (p=0.038). 

Change from Baseline in Volume of Quantitative Lung Fibrosis (mL) in the Intention-to-Treat Population

As in our previous open label Phase 2 study, a correlation between FVC percent predicted and QLF was confirmed at both Weeks 24 and 48 in this study.

We are not aware of any other IPF therapies that have shown a statistically significant effect on lung fibrosis as measured by quantitative HRCT analysis.

The treatment effects of pamrevlumab were demonstrated not only on change in FVC, a measure of pulmonary function and IPF disease progression, and 
change in fibrosis using quantitative HRCT, but pamrevlumab-treated patients also showed a trend of clinically meaningful improvement in a measure of 
health-related quality of life using the St. George’s Respiratory Questionnaire vs. a reduction in quality of life seen in placebo patients over the 48 weeks of 
treatment. The St. George’s Respiratory Questionnaire quality of life measurement has been validated in chronic obstructive pulmonary disease. In the 
subgroup of patients that were evaluated by the UCSD Shortness of Breath Questionnaire, pamrevlumab-treated patients had a significant attenuation of 
their worsening dyspnea in comparison to placebo patients.

Pamrevlumab was well-tolerated in the placebo-controlled study. The treatment-emergent adverse events were comparable between the pamrevlumab and 
placebo arms and the adverse events in the pamrevlumab arm were consistent with the known safety profile of pamrevlumab. In this study, as compared 
with the placebo group, fewer pamrevlumab patients were hospitalized, following an IPF-related or respiratory treatment-emergent adverse event, or died 
for any reason.

Open-Label Phase 2 Clinical Trial of Pamrevlumab in IPF

Our completed open-label extension of Study 049, a Phase 2 open-label, dose-escalation study to evaluate the safety, tolerability, and efficacy of 
pamrevlumab in 89 patients with IPF, was consistent with the results from our randomized, double-blind, placebo-controlled Phase 2 clinical trial PRAISE. 
We presented data from our open-label Phase 2 IPF extension study (049) at the International Colloquium on Lung and Airway Fibrosis in November 2016, 
reporting that no safety issues were observed during prolonged treatment with pamrevlumab. 

10

 
 
PANCREATIC CANCER

Understanding Pancreatic Cancer and Current Therapies

Certain solid malignant tumors have a prominent fibrosis component consisting mostly of ECM that contributes to metastasis and progressive disease. 
ECM is the connective tissue framework of an organ or tissue. 

Pancreatic ductal adenocarcinoma, or pancreatic cancer, is the third leading cause of cancer deaths in the U.S. According to the American Cancer Society, 
approximately 64,500 people will be diagnosed with pancreatic cancer in the U.S. in 2023, and approximately 50,500 people will die of pancreatic cancer. 
Of all people diagnosed with pancreatic cancer in the U.S. between 2011 and 2017, the 5-year survival rate was 11%. Globally, an estimated 495,000 
people were diagnosed with pancreatic cancer in 2020 and an estimated 466,000 people worldwide died from the disease. Because pancreatic cancer is 
difficult to diagnose, over 50% of new cased are metastatic, with a five-year survival rate of approximately 3%. An additional 15-20% of new pancreatic 
cancer patients are diagnosed with localized resectable tumors, with the remaining 30-35% of newly diagnosed patients having localized, unresectable 
tumors. For those with resectable tumors, 50% survive 17 to 27 months post-diagnosis and ~20% achieve five-year survival. In its report of December 
2017, Decision Resources Group estimated that the major market sales (U.S., Europe and Japan) of pancreatic cancer drugs would grow from $1.3 billion 
in 2016 to approximately $3.7 billion in 2026. 

Pancreatic cancer is aggressive and typically not diagnosed until it is largely incurable. Most patients are diagnosed after the age of 45, and according to the 
American Cancer Society, 94% of patients die within five years from diagnosis. The majority of patients are treated with chemotherapy, but pancreatic 
cancer is highly resistant to chemotherapy. Approximately 15% to 20% of patients are treated with surgery; however, even for those with successful 
surgical resection, the median survival is approximately two years, with a five-year survival rate of 15% to 20% (Neesse et al. Gut (2011)). Radiation 
treatment may be used for locally advanced diseases, but it is not curative. 

The duration of effect of approved anti-cancer agents to treat pancreatic cancer is limited. Gemcitabine demonstrated improvement in median overall 
survival from approximately four to six months, and erlotinib in combination with gemcitabine demonstrated an additional ten days of survival. Nab-
paclitaxel in combination with gemcitabine was approved by the FDA in 2013 for the treatment of pancreatic cancer, having demonstrated median survival 
of 8.5 months. The combination of folinic acid, 5-fluorouracil, irinotecan and oxaliplatin (FOLFIRINOX) was reported to increase survival to 11.1 months 
from 6.8 months with gemcitabine. These drugs illustrate that progress in treatment for pancreatic cancer has been modest, and there remains a need for 
substantial improvement in patient survival and quality of life.

The approved chemotherapeutic treatments for pancreatic cancer target the cancer cells themselves. Tumors are composed of cancer cells and associated 
non-cancer tissue, or stroma, of which ECM is a major component. In certain cancers such as pancreatic cancer, both the stroma and tumor cells produce 
CTGF which in turn promotes the proliferation and survival of stromal and tumor cells. CTGF also induces ECM deposition that provides advantageous 
conditions for tumor cell adherence and proliferation, promotes blood vessel formation, or angiogenesis, and promotes metastasis, or tumor cell migration, 
to other parts of the body.

Pancreatic cancers are generally resistant to powerful chemotherapeutic agents, and there is now growing interest in the use of an anti-fibrotic agent to 
diminish the supportive role of stroma in tumor cell growth and metastasis. The anti-tumor effects observed with pamrevlumab in preclinical models 
indicate that it has the potential to inhibit tumor expansion through effects on tumor cell proliferation and apoptosis as well as reduce metastasis.

Phase 3 Clinical Trial in Locally Advanced Unresectable Pancreatic Cancer

LAPIS is our double-blind placebo-controlled Phase 3 clinical program for pamrevlumab as a therapy for LAPC. We completed enrollment of 284 patients, 
randomized at a 1:1 ratio to receive either pamrevlumab or placebo, in each case in combination with chemotherapy (either FOLFIRINOX or gemcitabine 
plus nab-paclitaxel). We expect topline data for the primary endpoint of overall survival in the first half of 2024.

11

 
Clinical Development in Metastatic Pancreatic Cancer

In June 2021, the Pancreatic Cancer Action Network’s (PanCAN) Precision PromiseSM adaptive trial platform included pamrevlumab in combination with 
standard of care chemotherapy treatments for pancreatic cancer (gemcitabine and Abraxane®), in its study for patients with metastatic pancreatic cancer. 
The pamrevlumab portion of the trial is still ongoing. Drug candidates in the Precision Promise study will continue to progress (including from Phase 2 to 
Phase 3) unless stopped sooner for safety or futility. The pamrevlumab combination therapy is offered to patients as either a first- or second-line treatment 
option. Pamrevlumab was the first experimental treatment arm to be offered as a first-line treatment in PanCAN’s innovative Precision Promise trial. The 
objective of Precision Promise is to expedite the study and approval of promising therapies for pancreatic cancer by bringing multiple stakeholders 
together, including academic, industry and regulatory entities.

Completed Phase 1/2 Clinical Trial in Locally Advanced Unresectable Pancreatic Cancer

We completed an open-label, randomized (2:1) Phase 1/2 trial (FGC004C-3019-069) of pamrevlumab combined with gemcitabine plus nab-paclitaxel 
chemotherapy vs. the chemotherapy regimen alone in patients with inoperable LAPC that has not been previously treated. We enrolled 37 patients in this 
study and completed the six-month treatment period and surgical assessment at the end of 2017. The overall goal of the trial was to determine whether the 
pamrevlumab combination can convert inoperable pancreatic cancer to operable, or resectable, cancer. Tumor removal is the only chance for cure of 
pancreatic cancer, but only approximately 15% to 20% of patients are eligible for surgery.

We reported updated results from this study at the American Society of Clinical Oncology Annual Meeting in June 2018. A higher proportion (70.8%) of 
pamrevlumab-treated patients whose tumors were previously considered unresectable became eligible for surgical exploration than patients who received 
chemotherapy alone (15.4%), based on pre-specified eligibility criteria at the end of six months of treatment. Furthermore, a higher proportion of 
pamrevlumab-treated patients (33.3%) achieved surgical resection than those who received chemotherapy alone (7.7%). 

In addition, this data showed improved overall survival among patients whose tumors were resected vs. not resected (NE vs. 18.56 months, p-
value=0.0141) and a trend toward improved overall survival in patients eligible for surgery vs. patients who were not (27.73 vs. 18.40 months, p-
value=0.0766). No increase in serious adverse events was observed in the pamrevlumab arm and no delay in wound healing was observed post-surgery.

Patients with LAPC have a median survival of less than 12 months, only slightly better than patients with metastatic pancreatic cancer, whereas patients 
with resectable pancreatic cancer have a much better prognosis with median survival of approximately 23 months and some patients being cured. If 
pamrevlumab in combination with chemotherapy continues to demonstrate an enhanced rate of conversion from unresectable cancer to resectable cancer, it 
may support the possibility that pamrevlumab could provide a substantial survival benefit for LAPC patients.

Completed Phase 1/2 Clinical Trial in Pancreatic Cancer

We completed an open-label Phase 1/2 (FGCL-MC3019-028) dose finding trial of pamrevlumab combined with gemcitabine plus erlotinib in patients with 
previously untreated locally advanced (Stage 3) or metastatic (Stage 4) pancreatic cancer. These study results were published in the Journal of Cancer 
Clinical Trials (Picozzi et al., J Cancer Clin Trials 2017, 2:123). Treatment continued until progression of the cancer or the patient withdrew for other 
reasons. Patients were then followed until death. 

Seventy-five patients were enrolled in this study with 66 (88%) having Stage 4 metastatic cancer. The study demonstrated a drug exposure-related increase 
in survival. At the lowest doses, no patients survived for even one year while at the highest doses up to 31% of patients survived one year.

12

 
A post-hoc analysis found that there was a significant relationship between survival and trough levels of plasma pamrevlumab measured immediately 
before the second dose (Cmin). Cmin greater than or equal to 150 µg/mL was associated with significantly improved progression-free survival (p=0.01) 
and overall survival (p=0.03) vs. those patients with Cmin less than 150 µg/mL. For patients with Cmin >150 µg/mL median survival was 9.0 months 
compared to median survival of 4.4 months for patients with Cmin <150 µg/mL. Similarly, 34.2% of patients with Cmin >150 µg/mL survived for longer 
than one year compared to 10.8% for patients with Cmin <150 µg/mL. These data suggest that sufficient blockade of CTGF requires pamrevlumab 
threshold blood levels of approximately 150 µg/mL in order to improve survival in patients with advanced pancreatic cancer.

In the study, the majority of adverse events were mild to moderate, and were consistent with those observed for erlotinib plus gemcitabine treatment 
without pamrevlumab. There were 99 treatment-emergent serious adverse events, six of which were assessed as possibly related to the investigational drug 
by the principal investigator, and 93 as not related to study treatment. After investigation, it was our determination that there is no causal relationship 
between pamrevlumab and the treatment-emergent serious adverse events deemed possibly related by the principal investigator. We did not identify any 
evolving dose-dependent pattern, and higher doses of pamrevlumab were not associated with higher numbers of serious adverse events or greater severity 
of the serious adverse events observed.

DUCHENNE MUSCULAR DYSTROPHY

Understanding DMD and Current Therapies

In the U.S., approximately one in every 5,000 boys have DMD, and approximately 20,000 children are diagnosed with DMD globally each year. There are 
currently no approved disease-modifying treatments. Despite taking steroids to mitigate progressive loss of muscle function, a majority of children with 
DMD are non-ambulatory by adolescence and median survival is age 25. 

DMD is an inherited disorder of one of the dystrophin genes resulting in absence of the dystrophin protein and abnormal muscle structure and function, 
leading to progressively diminished mobility as well as pulmonary function and cardiac function, which result in early death. Constant myofiber 
breakdown results in persistent activation of myofibroblasts and altered production of ECM resulting in extensive fibrosis in skeletal muscles of DMD 
patients. Desguerre et al. (2009) showed that muscle fibrosis was the only myo-pathologic parameter that significantly correlated with poor motor outcome 
as assessed by quadriceps muscle strength, manual muscle testing of upper and lower limbs, and age at ambulation loss. Numerous pre-clinical studies 
including those in the mdx model of DMD suggest that CTGF contributes to the process by which muscle is replaced by fibrosis and fat and that CTGF 
may also impair muscle cell differentiation during muscle repair after injury.

Phase 3 Clinical Trial of Pamrevlumab

Non-Ambulatory DMD Patients

LELANTOS-1 is our double-blind, placebo-controlled Phase 3 clinical trial evaluating pamrevlumab as a treatment for DMD, in combination with 
systemic corticosteroids. LELANTOS-1 completed enrollment of 99 non-ambulatory DMD patients randomized at a 1:1 ratio to pamrevlumab or placebo 
for a treatment period of 52 weeks. The primary endpoint will assess change in upper limb function from baseline to Week 52 and additional endpoints will 
include pulmonary, cardiac, performance, and fibrosis assessments. We expect topline data from this study in the second quarter of 2023.

Ambulatory DMD Patients

LELANTOS-2 is our double-blind, placebo-controlled Phase 3 trial evaluating pamrevlumab in DMD, in combination with systemic corticosteroids. 
We completed enrollment of 73 ambulatory patients aged 6-12, randomized at a 1:1 ratio to pamrevlumab or placebo for a treatment period of 52 weeks. 
The primary efficacy endpoint will assess ambulatory function, measured by the change in North Star Ambulatory Assessment from baseline to Week 
52. We expect topline data from this study in the third quarter of 2023.

13

 
Phase 2 Open-Label Clinical Trial of Pamrevlumab in DMD 

In June 2019 at the Parent Project Muscular Dystrophy meeting, we reported topline results from this 21-patient open-label single-arm trial in non-
ambulatory DMD patients. This one-year administrative analysis compared our Phase 2 data to previously published natural disease history studies of 
DMD patients. While we cannot make direct comparisons between our trial and previously published data due to, among other things, differences in 
subject numbers, baseline characteristics, inclusion/exclusion criteria, treatment protocols, and analysis methods, pamrevlumab was well tolerated and 
compares favorably to published studies for FVC percent predicted and other clinical outcomes.  

In pulmonary function tests, the results from our study indicate a potential reduction in the one-year decline in FVC percent predicted from baseline for 
pamrevlumab-treated patients when compared to FVC data of DMD patients (whether such patients were taking steroids or not) published in 2019 by 
Ricotti. In addition, pamrevlumab showed less decline in both percent predicted forced expiratory volume as compared to previously published study 
results of Meier in 2016, and in percent predicted peak expiratory flow rate, compared to what was observed in the study by Ricotti in 2019.

In muscle function tests, the majority of the results of this Phase 2 study showed the mean change from baseline in pamrevlumab-treated patients appeared 
to be more favorable than previously published data. Our results showed a mean increase in grip-strength score in both dominant and non-dominant hands 
at one year of treatment with pamrevlumab, while earlier results from a 2015 study by Seferian showed a decline at one year as expected. 

ROXADUSTAT FOR THE TREATMENT OF ANEMIA

CHRONIC KIDNEY DISEASE

In collaboration with our partners Astellas Pharma Inc. (“Astellas”) and AstraZeneca, we have completed 16 Phase 3 studies worldwide in over 11,000 
patients to support our marketing approvals of roxadustat (爱瑞卓® , EVRENZOTM) to treat CKD anemia in China, Europe, Japan and numerous other 
countries. 

Roxadustat Mechanism of Action

Roxadustat is an orally administered reversible inhibitor of HIF-PH. Inhibition of prolyl hydroxylase stabilizes HIF, which then forms a complex that 
initiates transcription of a number of genes involved in the erythropoietic process. This in turn stimulates a coordinated response that includes the increase 
of plasma endogenous erythropoietin (“EPO”) levels and reduction of hepcidin, a key regulator of iron homeostasis, ultimately resulting in increased 
oxygen delivery to tissues. 

In anemia of CKD, roxadustat temporarily inhibits HIF-PH, stimulating a coordinated erythropoietic response.

Patients taking roxadustat typically have a transient increase in circulating endogenous EPO levels at peak concentration within or near the physiologic 
range naturally experienced by humans adapting to hypoxic conditions such as at high altitude, following blood donation, or impaired lung function, such 
as pulmonary edema. 

By contrast, erythropoiesis stimulating agents (“ESAs”) act only to stimulate erythroid maturation without a corresponding increase in iron availability, and 
are typically dosed at well above the natural physiologic range of EPO. The sudden demand for iron stimulated by ESA-induced erythropoiesis can lead to 
functional or absolute iron deficiency. In addition, the lack of a coordinated increase in iron availability with ESAs may explain the hyporesponsiveness of 
patients with inflammation to this class of drugs. It also explains why patients taking ESAs need more IV iron supplementation and red blood cell 
transfusions than patients taking roxadustat do. Not only are IV iron and blood transfusions more costly than oral iron, but both are also associated with 
increased risk of hospitalization and death.

The differentiated mechanism of action of roxadustat, which involves induction of the body’s own natural pathways to achieve a more complete 
erythropoiesis, has the potential to provide a safe and effective treatment for anemia, including in the presence of inflammation, which normally limits iron 
availability.

14

 
Background of Anemia in Chronic Kidney Disease

CKD is a progressive disease characterized by gradual loss of kidney function that may eventually lead to kidney failure or end-stage renal disease 
requiring dialysis or a kidney transplant to survive. CKD affects 12% to 14% of the global adult population. CKD is more prevalent in developed countries 
but is also growing rapidly in emerging markets such as China. 

Anemia is a complication of CKD and can be a serious medical condition in which patients have insufficient red blood cells and low levels of hemoglobin, 
a protein in red blood cells that carries oxygen to cells throughout the body. Anemia becomes increasingly common as kidney function declines and is 
associated with increased risk of hospitalization, cardiovascular complications and death, and frequently causes significant fatigue, cognitive dysfunction, 
and considerable reduction of quality of life.

China – Roxadustat Commercial Program 

Since the launch of roxadustat (tradename: 爱瑞卓®) in 2019, the anemia of CKD market has expanded significantly. Roxadustat has captured a majority 
of this growth, benefiting from inclusion in the 2019 and 2021 National Reimbursement Drug Lists. 

In 2022, roxadustat sales volume grew over 80% and it was the top CKD anemia brand in China with a 34% value share within the segment of ESAs and 
HIF-PH inhibitors. Roxadustat remains the only HIF-PH inhibitor currently on the market in China and we have seen broad adoption across the three 
segments of hemodialysis, peritoneal dialysis, and non-dialysis. 

In 2023, we expect continued and robust growth of roxadustat sales in China due to continued adoption by patients and doctors. Multiple treatment 
guidelines and expert consensus in China describe or recommend HIF-PH inhibitors as a treatment for CKD anemia - and roxadustat specifically. We 
believe this increased awareness and confidence in the class will provide strong support for continued expansion of roxadustat sales. 

We have established significant clinical experience and market leadership in treating CKD anemia in China, and we believe roxadustat has become the 
standard of care for the treatment of anemia in CKD in China. In 2023, we will focus on expanding the population treated with roxadustat, as well as 
duration of treatment which we believe is important to managing the risks associated with anemia in CKD.

Europe - Roxadustat Commercial Program

In Europe, our partner Astellas continues the commercial launch of EVRENZO® (roxadustat). EVRENZO is approved for the treatment of anemia 
associated with CKD in both non-dialysis and dialysis patients. EVRENZO is the only HIF-PH inhibitor currently on the market in Europe. In 2023, we 
expect sales of roxadustat for CKD anemia in Europe to accelerate due to reimbursement and launches in additional European countries.

Japan - Roxadustat Commercial Program

In Japan, our partner Astellas continues the commercial launch of EVRENZO (roxadustat), targeting healthcare providers that care for approximately 
330,000 dialysis patients across Japan. EVRENZO is approved for the treatment of anemia associated with CKD in both non-dialysis and dialysis patients. 
The supplemental NDA for the use of roxadustat in patients with anemia of CKD not on dialysis was approved in November 2020 by the Pharmaceuticals 
and Medical Devices Agency. EVRENZO is one of five HIF-PH inhibitors currently on the market in Japan.

United States - Roxadustat Development

There are approximately 39 million CKD patients in the U.S., an estimated six million of whom have anemia.

When ESAs were introduced in 1989, they dramatically reduced the need for blood transfusions in CKD patients, which was a material development since 
transfusions reduce the patient’s opportunity for a kidney transplant and increase the risk of infections and complications such as heart failure and allergic 
reactions. However, multiple randomized clinical trials with ESAs suggested safety risks of ESA therapies, and as a result, the anemia guidelines and 
approved labels have changed to more restrictive use of ESAs.

15

 
In the dialysis-dependent population, most patients start receiving ESAs when the patient is transitioning to dialysis care. As of the end of 2018, there were 
over 550,000 CKD patients on dialysis in the U.S., a large majority of whom required anemia therapy.

There were approximately 127,000 incident dialysis patients in 2018. Despite the higher risk of blood transfusions, cardiovascular events, and 
hospitalization in patients with anemia, only 14.6% of patients in 2018 were treated with ESAs prior to initiating dialysis notwithstanding a mean 
hemoglobin level of 9.3 g/dL at the time of dialysis initiation. These treatment figures at the time of dialysis initiation demonstrate how undertreated CKD 
anemia is currently in non-dialysis patients.

In August 2021, the U.S. FDA issued a CRL regarding roxadustat’s NDA for the treatment of anemia due to CKD in adult patients, stating that it could not 
be approved in its present form.

ANEMIA ASSOCIATED WITH MYELODYSPLASTIC SYNDROMES

MDS is a diverse group of bone marrow disorders characterized by ineffective production of healthy blood cells and premature destruction of blood cells in 
the bone marrow, leading to anemia. In most MDS patients, the cause of the disease is unknown.

The prevalence of MDS in the U.S. is estimated to be between 60,000 and 170,000, and continues to rise as more therapies become available and patients 
are living longer with MDS. Annual incidence rates are estimated to be 4.9/100,000 adults in the U.S., and 1.51/100,000 adults in China.

Anemia is the most common clinical presentation in MDS, seen in approximately 80% of MDS patients, and producing symptoms, including fatigue, 
weakness, exercise intolerance, shortness of breath, dizziness, and cognitive impairment.

Limitations of the Current Standard of Care for Anemia in Myelodysplastic Syndromes

Stem cell transplant is the only potentially curative therapy for MDS, but it is not feasible in most patients due to their advanced age and frailty. The high 
rate of severe anemia leaves recurring red blood cell transfusions as the mainstay of care in MDS patients. Transfusion can result in direct organ damage 
through transfusional iron overload. Transfusion dependent MDS patients suffer higher rates of cardiac events, infections and transformation to acute 
leukemia, and a decreased overall survival rate when compared with non-transfused patients with MDS, and decreased survival compared to an age-
matched elderly population. Patients receiving red blood cell transfusions may require an iron chelator in order to address toxic elements of iron overload 
such as lipid peroxidation and cell membrane, protein, DNA, and organ damage. 

Lower-risk MDS patients represent approximately 77% of the total diagnosed MDS population. Most national and international guidelines recommend use 
of ESAs for anemia only in lower-risk MDS patients presenting with symptomatic anemia with serum EPO levels at or below 500 mU/mL. 

Even among the eligible subpopulation, the effectiveness of ESAs in treating anemia in MDS remains limited, with the best clinical study results showing 
40% to 60% erythroid response rates, in studies where significantly high doses of ESAs were used, enrolled patients had low serum EPO levels, and in 
lower-risk categories. New strategies to broaden the eligible population, improve anemia and maintain adequate iron balance, as well as avoidance of 
transfusions, are highly desired in managing patients with MDS.

Market Opportunity for Roxadustat in Myelodysplastic Syndromes

We believe there is a significant need for a safer, more effective, and more convenient option to address anemia in patients with lower-risk MDS. 
Roxadustat, our orally administered small molecule HIF-PH inhibitor, stimulates the body’s natural mechanism of red blood cell production and iron 
hemostasis based on cellular-level oxygen-sensing and iron-regulation mechanisms. Unlike ESAs which are limited to providing exogenous EPO, 
roxadustat activates a coordinated erythropoietic response in the body that includes the stimulation of red blood cell progenitors, an increase in the body’s 
production of endogenous EPO, and an increase in iron availability for hemoglobin synthesis, which we believe is important in a broad range of MDS 
patients. Moreover, in anemia of CKD, roxadustat has demonstrated the ability in clinical trials to increase and maintain hemoglobin levels in the presence 
of inflammation as measured by CRP, where ESAs have shown limited effect. We believe that roxadustat has the potential to replicate this result in MDS 
anemia patients, where it is not uncommon for patients to present with autoimmune and inflammatory conditions.

16

 
Phase 3 Clinical Trial in Myelodysplastic Syndromes

We completed enrollment of the Phase 3 arm of MATTERHORN, our Phase 2/3 placebo-controlled, double-blind clinical trial of roxadustat for the 
treatment of anemia in MDS in the U.S. and Europe. The Phase 3 portion of this trial is studying roxadustat in 140 transfusion-dependent, lower-risk MDS 
patients, in which subjects are randomized 3:2 to receive roxadustat or placebo three-times-weekly. The primary endpoint is the proportion of patients who 
achieve transfusion independence for 56 consecutive days within the first 28 weeks with secondary endpoints and safety evaluated at 52 weeks. We expect 
topline 28-Week data from this study in the second quarter of 2023.

CHEMOTHERAPY-INDUCED ANEMIA

As blood cell production in bone marrow is highly prolific, it is particularly vulnerable to the cytotoxic effects of chemotherapy used to treat cancer 
patients. Many chemotherapy agents directly impair hematopoiesis in bone marrow, including disruption of red blood cell production. The nephrotoxic 
effects of some cytotoxic agents, such as platinum-containing agents, can also result in decreased production of erythropoietin by the kidneys, further 
contributing to reduced red blood cell production. Radiation therapy has also been associated with hematologic toxicity. 

Approximately 40% of total solid tumor cancer patients, or approximately 6.8 million people, undergo chemotherapy each year globally, including 3.2 
million in China. Between 60% and 80% of these patients develop anemia. The incidence and severity of CIA depend on a variety of factors, including the 
tumor type or the level of toxicity of the therapy, and further increases with each successive chemotherapy round. We believe the addressable population is 
approximately 500,000 in China. 

ESAs have been recommended for patients experiencing CIA with the desirable goals of improvement in anemia-related symptoms and the avoidance of 
blood transfusion, which increases risk of infections and the risk of complications such as heart failure and allergic reactions. However, not all CIA patients 
respond to ESA therapy, which may be due to the etiology of their CIA or inflammatory comorbidity. ESA use also has associated toxicities, including 
increased thrombotic events, possible decreased survival and accelerated tumor progression, as published from randomized clinical trials and meta-
analyses, that led to label restrictions and boxed warnings in the U.S. for ESAs in cancer populations in 2007, followed by the ESA Risk Evaluation and 
Mitigation Strategy program.

Market Opportunity for Roxadustat in Chemotherapy-Induced Anemia

China has 4-5 million solid tumor patients, of which approximately 75% receive chemotherapy. Of that population, an estimated 50% (over 1.5 million 
patients) become anemic, and among them, 40% are considered moderate to severe, defined as Hb < 10 g/dL. This addressable population is largely 
untreated, with an ESA usage rate of under 10%. We further estimate that the population where anemia has led to chemotherapy dose reduction or delay is 
around 20-25%.

We believe this population could benefit from treatment with roxadustat, and the oral administration of HIF-PH inhibitors for this very sick population 
could be a particularly attractive feature over ESAs.

Phase 3 Clinical Trial in Chemotherapy-Induced Anemia

We have completed enrollment of our active-controlled Phase 3 clinical trial in China of roxadustat in CIA for non-myeloid malignancies. The primary 
efficacy endpoint is the mean change in hemoglobin level from baseline to the level averaged over Weeks 9-13. This trial has enrolled 159 subjects and we 
expect topline data from this study in the second quarter of 2023.

Phase 2 Clinical Trial in Chemotherapy-Induced Anemia

The results of WHITNEY, the Phase 2 clinical trial of roxadustat in CIA in the U.S., was published by the American Journal of Hematology in January 
2023. This study provided the basis for the study design for the China Phase 3 study.

17

 
RESEARCH AT FIBROGEN

Our research programs at FibroGen are grounded in our three areas of expertise: HIF biology, 2-oxoglutarate enzymology, and CTGF biology. More 
recently, we added two immuno-oncology programs via a partnership with HiFiBiO Therapeutics (“HiFiBiO”) and are actively working to further 
expand the preclinical pipeline in our therapeutic focus areas of oncology, immunology, and fibrosis.

We have applied our expertise in the field of HIF-PH inhibition to develop an understanding of other areas of HIF biology with important therapeutic 
implications. This consistent progression of discovery has led to findings relating to HIF-mediated effects associated with inflammatory pathways, 
various aspects of iron metabolism, insulin sensitivity and glucose and fat metabolism, neurological disease, and ischemic injury. There are at least three 
different HIF-PH enzymes that are known to regulate the stability of HIF — these enzymes are commonly referred to in the scientific literature as PHD1, 
PHD2 and PHD3. Studies of genetically modified mice, in which the individual HIF-PH enzymes have been deleted, have revealed that PHD2 plays the 
major role in regulation of erythropoiesis by HIF. In contrast, PHD1 and PHD3 appear to play less important roles in HIF-mediated erythropoiesis, but 
instead have been implicated in other important biological pathways. We believe that both pan-PHD and PHD-selective inhibitors could have important 
therapeutic applications beyond anemia. 

The HIF-PH enzymes that are the targets of roxadustat belong to a broader family of enzymes known as 2-oxoglutarate (“2OG”)-dependent oxygenases. 
In humans, this family comprises more than 60 members that play important roles in a diverse range of biological processes including collagen 
biosynthesis, oxygen sensing, epigenetic regulation, nucleic acid modification/repair, and lipid metabolism. The first members of this enzyme family to 
be characterized were the collagen prolyl hydroxylases, which play a critical role in the biosynthesis of collagen and as a result, are potential targets for 
the treatment of fibrotic disease. Other members of the 2OG-dependent oxygenase family with relevance to human disease include the Jumonji domain-
containing histone demethylases, which are emerging cancer targets.

The fact that all members of the 2OG-dependent oxygenase enzyme family use 2OG as a co-substrate makes them viable targets for small molecule 
inhibitors that compete with 2OG. FibroGen has been a leader in inhibition of enzymes belonging to this family, and our internal medicinal chemistry 
efforts generated a library of novel compounds designed to target the 2OG-dependent oxygenase family.

We are also applying our knowledge of CTGF to investigate new clinical opportunities for pamrevlumab. We are exploring additional indications in which 
CTGF-driven fibrosis has been implicated in disease progression and mortality, as well as expanded cancer subtypes for which CTGF biology has been 
shown to support tumor survival and metastasis. 

More recently we in-licensed two preclinical immuno-oncology assets. The first is FG-3165, an antibody that inhibits Galectin-9, a secreted protein 
implicated in suppression of anti-tumor immune response in multiple solid tumors, and shown to be a driver of cancer progression in acute myeloid 
leukemia. The other is FG-3163, an antibody targeting the CCR8 protein designed to deplete immune suppressive T regulatory cells from the tumor 
microenvironment. Multiple preclinical studies demonstrated that depletion of T regulatory cells in solid tumors results in enhanced immune response and 
reduction in tumor size, particularly when combined with immune checkpoint inhibition. We expect to file INDs for up to two of these programs in the 
second half of 2023.

18

 
COLLABORATIONS 

Collaboration Partnerships for Roxadustat

Our revenue to date has been generated primarily from our collaboration agreements with Astellas and AstraZeneca for the development and 
commercialization of roxadustat. In addition, we started roxadustat commercial sales in China in 2019. For the fiscal year ended December 31, 2022, 40% 
of our revenue was related to our collaboration agreements, and 59% of our revenue was from roxadustat commercial sales in China. For the fiscal year 
ended December 31, 2021, 76% of our revenue was related to our collaboration agreements, and 20% of our revenue was from roxadustat commercial sales 
in China. For the fiscal year ended December 31, 2020, 59% of our revenue was related to our collaboration agreements, and 41% of our revenue was from 
roxadustat commercial sales in China.

Astellas

We have two agreements with Astellas for the development and commercialization of roxadustat, one for Japan, and one for Europe, the Commonwealth of 
Independent States, the Middle East and South Africa. Under these agreements, we provided Astellas the right to develop and commercialize roxadustat for 
anemia in these territories.

We share responsibility with Astellas for clinical development activities required for U.S. and Europe regulatory approval of roxadustat, and equally share 
those development costs under the agreed development plan for such activities. Astellas will be responsible for clinical development activities and all 
associated costs required for regulatory approval in all other countries in the Astellas territories. Astellas will hold and have responsibility for regulatory 
filings in its territories. We are responsible, either directly or through our contract manufacturers, for the manufacture and supply of all quantities of 
roxadustat to be used in development and commercialization under the agreements, other than roxadustat drug product for Japan. Astellas is responsible for 
roxadustat commercialization activities in the Astellas territories.

AstraZeneca

We have two agreements with AstraZeneca for the development and commercialization of roxadustat for anemia, one for China (the “AstraZeneca China 
Agreement”), and one for the U.S. and all other countries not previously licensed to Astellas (the “AstraZeneca U.S./RoW Agreement”). Under these 
agreements, we provided AstraZeneca the right to develop and commercialize roxadustat for anemia in these territories. We share responsibility with 
AstraZeneca for clinical development activities required for U.S. regulatory approval of roxadustat, and FibroGen will transfer the U.S. NDA to 
AstraZeneca upon approval. AstraZeneca will hold the equivalent regulatory filings in the other licensed countries.

Under the AstraZeneca China Agreement, which is conducted through FibroGen China Anemia Holdings, Ltd., FibroGen Beijing, and FibroGen 
International (Hong Kong) Limited (collectively, “FibroGen China”), the commercial collaboration was structured as a 50/50 profit share, which was 
amended by the AstraZeneca China Amendment in the third quarter of 2020, as discussed and defined below. 

In 2020, we entered into Master Supply Agreement under the AstraZeneca U.S./RoW Agreement to define general forecast, order, supply and payment 
terms for AstraZeneca to purchase roxadustat bulk drug product from FibroGen in support of commercial supplies. 

In July 2020, FibroGen China and AstraZeneca entered into an amendment, effective July 1, 2020, to the AstraZeneca China Agreement, relating to the 
development and commercialization of roxadustat in China (the “AstraZeneca China Amendment”). 

Under the AstraZeneca China Amendment, in September 2020, FibroGen Beijing and AstraZeneca completed the establishment of a jointly owned entity, 
Beijing Falikang Pharmaceutical Co. Ltd. (“Falikang”), which performs roxadustat distribution, as well as conduct sales and marketing through 
AstraZeneca. 

FibroGen Beijing manufactures and supplies commercial product to Falikang based on an agreed upon transfer price, which includes a gross transfer price, 
net of a calculated profit share. Revenue is recognized upon the transfer of control of commercial products to Falikang in an amount that reflects the 
allocation of transaction price of the China manufacturing and supply obligation to the performance obligation satisfied during the reporting period. 

19

 
Additional Information Related to Collaboration Agreements

Additional information related to our collaboration agreements is set forth in Item 7 of this Annual Report, and Note 3, Collaboration Agreements, License 
Agreement and Revenues, to our consolidated financial statements under Item 8 of this Annual Report. Information about collaboration partners that 
accounted for more than 10% of our total revenue or accounts receivable for the last three fiscal years is set forth in Note 15, Segment and Geographic 
Information, to our consolidated financial statements under Item 8 of this Annual Report.

HiFiBiO

In  June  2021,  we  entered  into  an  exclusive  license  and  option  agreement  with  HiFiBiO,  pursuant  to  which  we  exclusively  licensed  from  HiFiBiO  all 
product candidates in HiFiBiO’s Galectin-9 program and subsequently exclusively licensed all product candidates in HiFiBiO’s CCR8 program. In addition 
to the upfront payments we previously paid, HiFiBiO may receive up to a total of $345 million in future clinical, regulatory, and commercial milestone 
payments for each program. HiFiBiO will also be eligible to receive tiered royalties based upon worldwide net sales. We expect to file INDs for up to two 
of these programs in the second half of 2023. 

LICENSING ACTIVITIES

Exclusive License with Eluminex 

In July 2021, we exclusively licensed to Eluminex Biosciences (Suzhou) Limited (“Eluminex”) global rights to our investigational biosynthetic cornea 
derived from recombinant human collagen type III. FibroGen may receive up to a total of $64.0 million in future manufacturing, clinical, regulatory, and 
commercial milestone payments for the biosynthetic cornea program, as well as $36.0 million in commercial milestones for the first recombinant collagen 
III product that is not the biosynthetic cornea. FibroGen will be eligible to receive mid-single-digit to low double-digit royalties based upon worldwide net 
sales of cornea products, and low single-digit to mid-single-digit royalties based on worldwide net sales of other recombinant human collagen type III 
products that are not cornea products. 

We received an $8.0 million upfront payment from Eluminex in 2022 and have billed a $3.0 million milestone in the first quarter of 2023 based on 
Eluminex implanting a biosynthetic cornea in the first patient of its clinical trial in China. Additional information related to the Eluminex license revenue is 
set forth in Note 3, Collaboration Agreements, License Agreement and Revenues, to our consolidated financial statements under Item 8 of this Annual 
Report.

Strategic Financing Agreement

On November 4, 2022, we entered into a revenue interest financing agreement (“RIFA”) with an affiliate of NovaQuest Capital Management 
(“NovaQuest”) with respect to our revenues from Astellas’ sales of roxadustat in Europe, Japan and the other Astellas territories. 

Pursuant to the RIFA, we received $49.8 million from NovaQuest, representing the gross proceeds of $50.0 million net of initial issuance costs, in 
consideration for a portion of future revenues we will receive from Astellas. For additional details about this financing transaction, see Note 8, Liability 
Related to Sale of Future Revenues, to the consolidated financial statements.

COMPETITION

The pharmaceutical and biotechnology industries are highly competitive, particularly in some of the indications of our developing drug candidates, 
including anemia in CKD, IPF, pancreatic cancer, and DMD. We face competition from multiple other pharmaceutical and biotechnology companies, many 
of which have significantly greater financial, technical and human resources and experience in product development, manufacturing and marketing. These 
potential advantages of our competitors are particularly a risk in IPF, pancreatic cancer, and DMD, where we do not currently have a development or 
commercialization partner.

We expect any products that we develop and commercialize to compete based on, among other things, efficacy, safety, convenience of administration and 
delivery, price, the level of generic competition, and the availability of reimbursement from government and other third-party payors.

20

 
When any of our product candidates are approved, they will compete with currently marketed products, and product candidates that may be approved for 
marketing in the future, for treatment of the indications described below.

In addition, we will likely face competition from other companies developing treatments of other anemia indications that we may also seek to pursue in the 
future or that may be sold in indications we are pursuing but for which they are not yet approved. We may face competition for patient recruitment, 
enrollment for clinical trials, and potentially in commercial sales. There may also be new therapies for renal-related diseases that could limit the market or 
level of reimbursement available for roxadustat.

Roxadustat

Approved Medicines 

Drugs that will compete with roxadustat are expected to include ESAs, particularly in those patient segments where ESAs are used. Currently available 
ESAs include epoetin alfa (EPOGEN®, marketed by Amgen Inc. in the U.S., Procrit® and Erypo®/Eprex®, marketed by Johnson & Johnson, Inc., and 
Espo® marketed by Kyowa Hakko Kirin in Japan and China), darbepoetin (Amgen/Kyowa Hakko Kirin’s Aranesp® and NESP®) and Mircera® marketed by 
Roche outside the U.S. and by Vifor Pharma, a Roche licensee, in the U.S. and Puerto Rico, as well as biosimilar versions of these currently marketed ESA 
products. ESAs have been used in the treatment of anemia in CKD for more than 30 years, serving a significant majority of dialysis patients. While non-
dialysis CKD anemia patients who are not under the care of nephrologists, including those with diabetes and hypertension, do not typically receive ESAs 
and are often left untreated, some non-dialysis patients under nephrology or hematology care may be receiving ESA therapy. It may be difficult to 
encourage healthcare providers and patients to switch to roxadustat from products with which they have become familiar. 

Biosimilars

The first biosimilar ESA, Pfizer’s Retacrit® (epoetin zeta), entered the U.S. market in November 2018. Market penetration of Retacrit and the potential 
addition of other biosimilar ESAs currently under development may alter the competitive and pricing landscape of anemia therapy in CKD patients on 
dialysis under the end-stage renal disease bundle. The patents for Amgen’s EPOGEN® (epoetin alfa) expired in 2004 in Europe, and the final material 
patents in the U.S. expired in May 2015. Several biosimilar versions of currently marketed ESAs are available for sale in Europe, China and other 
territories. In the U.S., a few ESA biosimilars are currently under development. Sandoz, a division of Novartis, markets Binocrit® (epoetin alfa) in Europe 
and may file a biosimilar Biologics License Application in the U.S.

Product Candidates in Development

We may also face competition from potential new anemia therapies currently on the market or in clinical development, including in those patient segments 
not adequately addressed by ESAs. Companies that are currently developing HIF-PH inhibitors for anemia in CKD indications include GlaxoSmithKline 
plc (“GSK”), Bayer Corporation (“Bayer”), Akebia Therapeutics, Inc. (“Akebia”), Otsuka Pharmaceutical, Akebia’s partner in the U.S. and Europe, Japan 
Tobacco, and Zydus Lifesciences Ltd. (formerly known as Cadila Healthcare Ltd.) (India) (“Zydus”). In March 2021, Akebia submitted an NDA to the 
FDA for vadadustat for the treatment of anemia due to CKD in patients on dialysis and not on dialysis. On March 30, 2022, Akebia announced that it 
received a Complete Response Letter from the FDA for vadadustat for the treatment of anemia due to CKD. In November of 2022, Akebia announced that 
it had filed a Formal Dispute Resolution Request related to the CRL for vadadustat. In October 2021, Otsuka Pharmaceutical submitted an initial marketing 
authorization application to the EMA for vadadustat for the treatment of anemia associated with CKD in adults. In June 2022, Akebia announced that it had 
regained rights to vadadustat in various territories, including Europe, upon termination of the Collaboration and License Agreement with Otsuka 
Pharmaceutical. 

GSK announced in February 2023 that the FDA approved daprodustat to treat anemia of CKD in adults who have been receiving dialysis for at least 
four months. GSK’s marketing authorization application for daprodustat is pending with the EMA.

Japan

In Japan, roxadustat faces the following competitive drugs being sold for the treatment of anemia in CKD for patients who are on dialysis and not on 
dialysis: vadadustat by Mitsubishi Tanabe Pharmaceutical Corporation, Akebia’s collaboration partner, daprodustat by GSK and its partner Kyowa Hakko 
Kirin, molidustat by Bayer, and enarodustat by Japan Tobacco (to be sold by Torii Pharmaceuticals Ltd). 

21

 
China

In China, ESA is considered the standard of care for the treatment of anemia in CKD, and locally manufactured epoetin alfa is offered by 15 local 
manufacturers including the market leader EPIAO that is marketed by 3SBio Inc. We may face potential competition from other HIF-PH inhibitors. 
Companies active in the U.S. such as Akebia, Bayer, and GSK have been authorized by the National Medical Products Administration (“NMPA”) to 
conduct trials in China to support their ex-China regulatory filings. A number of domestic companies, including Jiangsu Hengrui Medicine Co., Ltd., 
Nicoya Therapeutics (Shanghai) Co. Ltd (licensed from Guandong Sunshine Health Investment Co., Ltd.), 3SBio Inc., and Hangzhou Andao 
Pharmaceutical Co., have been permitted by the NMPA to conduct clinical trials in their locally developed HIF-PH inhibitor investigational compounds for 
the treatment of anemia in CKD. Domestic companies are also in-licensing global compounds to be developed as domestic drugs, including China Medical 
System which in-licensed Desidustat, a compound that is approved in India, from Zydus for greater China in January 2020. In January 2021, China Medical 
System Holdings Ltd. was granted approval by the Chinese NMPA to begin trials for Desidustat in patients with anemia of CKD, including dialysis and 
non-dialysis patients. Shenzhen Salubris Pharmaceutical Co., Ltd., a domestic company in China, in-licensed Enarodustat from Japan Tobacco and received 
NMPA approval in the third quarter of 2020 to initiate Phase 3 studies. We will also face competition from generics who could enter the market after expiry 
of our patents in China, and two potential market players have already started bioequivalence studies, including Chia Tai-Tiangqing Pharmaceutical 
Holdings and CSPA Pharmaceutical Group.

CIA and MDS 

Reblozyl® (luspatercept) was approved by the FDA in April 2020 for the treatment of anemia in adults with MDS with ring sideroblasts or 
myelodysplastic/myeloproliferative neoplasms with ring sideroblasts and thrombocytosis who need regular red blood cell transfusions and have not 
responded well to or cannot receive an ESA. It is the first and only erythroid maturation agent approved in the U.S., Europe, and Canada and is part of a 
global collaboration between Acceleron Pharma, Inc. and Bristol Myers Squibb. In addition, Geron Corporation recently released positive data from its 
ongoing Phase 3 clinical trial of imetelstat in lower risk MDS. 

Large Dialysis Organizations

The majority of the current CKD anemia market focuses on dialysis patients who visit dialysis centers on a regular basis, typically three times a week, and 
are administered anemia therapies as part of the visit. Collectively, DaVita Healthcare Partners Inc. (“DaVita”) and Fresenius Medical Care AG & Co. 
KGaA (“Fresenius”), two of the largest operators of dialysis clinics in the U.S., provide dialysis care to more than 80% of U.S. dialysis patients, and have 
historically executed long-term contracts including rebate terms with Amgen. Successful penetration in this market will likely require our partner 
AstraZeneca to enter into a definitive agreement with Fresenius, DaVita, or other dialysis organizations, on favorable pricing terms and on a timely basis. 

Pamrevlumab

We are currently in Phase 3 development of pamrevlumab in IPF, LAPC, metastatic pancreatic cancer, and DMD. Most of our competitors have 
significantly more resources and expertise in development, commercialization and manufacturing, particularly due to the fact that we have not yet 
established a partnership for pamrevlumab. For example, both Roche and Boehringer Ingelheim, which market products for the treatment of IPF in the 
U.S., have successfully developed and commercialized drugs in various indications and have built sales organizations that we do not currently have; both 
have more resources and more established relationships when competing with us for patient recruitment and enrollment for clinical trials or, if we are 
approved, in the market.

22

 
Idiopathic Pulmonary Fibrosis

If approved and launched commercially to treat IPF, pamrevlumab is expected to compete with Roche’s Esbriet® (pirfenidone), and Boehringer Ingelheim’s 
Ofev® (nintedanib). It may be difficult to encourage treatment providers and patients to switch to pamrevlumab from an oral product with which they are 
already familiar to a product delivered via in-office infusion. Furthermore, there are multiple generic alternatives of pirfenidone in the U.S. and nintedanib 
may be produced as a generic in the near future. We may also face competition from potential new IPF therapies in recruitment and enrollment in our 
clinical trials and potentially in commercialization.

Pamrevlumab is a monoclonal antibody that may be more expensive and less convenient than oral small molecules such as nintedanib and pirfenidone. 
Other potential competitive product candidates in various stages of development for IPF include Boehringer Ingelheim’s BI 1015550. Boehringer 
Ingelheim enrolled its first patient in the fourth quarter of 2022 in its Phase 3 trial of BI 1015550, a novel investigational phosphodiesterase 4B (PDE4B) 
inhibitor of IPF. Roche has discontinued its Phase 3 trial evaluating the efficacy and safety of PRM-151, a recombinant human pentraxin-2 (rhPTX-2), 
compared to placebo in patients with IPF. United Therapeutics Corporation is enrolling patients in its Phase 3 trial of treprostinil in IPF. 

Pancreatic Cancer

We are developing pamrevlumab to be used in combination with chemotherapy (either FOLFIRINOX or gemcitabine plus nab-paclitaxel) in pancreatic 
cancer. If approved, we would face competition from Celgene’s Abraxane® (nab-paclitaxel), gemcitabine, and FOLFIRINOX, a combination 
chemotherapy regimen of folic acid, 5-fluouracil, oxaliplatin and irinotecan. Gemcitabine and/or nab-paclitaxel are the current standard of care in the first-
line treatment of metastatic pancreatic cancer. In 2015, Merrimack Pharmaceuticals Inc. (“Merrimack”) received FDA approval for the use of ONIVYDE 
(irinotecan liposome injection, acquired by Ipsen in 2017) for the treatment of patients with metastatic adenocarcinoma of the pancreas after disease 
progression following gemcitabine-based therapy, and the combination therapy with Abraxane and gemcitabine became the first-line standard of care in 
these patients. As treatments for pancreatic cancer have shown limited success to date, combination therapies are expected, but the incremental cost may 
slow a new product adoption in the market, at least until the generic versions of Abraxane becomes available. In addition, we may also face competition 
from other agents seeking approval in combination with gemcitibine and nab-paclitaxel such as Rafael Pharma’s defactinib/CPI-613 and Merrimack’s 
istiratumab.

Duchenne Muscular Dystrophy

If approved and launched commercially to treat DMD, pamrevlumab is expected to face competition from drugs that have been approved in major markets 
such as the U.S., European Union, and Japan. 

Sarepta Therapeutics Inc.’s (“Sarepta”) Exondys 51TM (eteplirsen) is approved in the U.S. to treat patients who have a mutation of the dystrophin gene 
amenable to exon 51 skipping, representing approximately 13% of patients with DMD. In Europe, Sarepta received a negative opinion for its marketing 
application for eteplirsen from the EMA in September 2018. Sarepta’s Vyondys 53TM (golodirsen) is approved in the U.S. for patients with a confirmed 
genetic mutation that is amenable to exon 53 skipping, which accounts for approximately 8% of the DMD population. Sarepta’s Amondys 45™ 
(casimersen) is approved in the U.S. for patients with a confirmed genetic mutation that is amenable to exon 45 skipping, which accounts for approximately 
8% of the DMD population. Sarepta filed a Biologics License Application for the accelerated approval of SRP-9001 (delandistrogene moxeparvovec) to 
treat ambulant patients with DMD and has a May 2023 Prescription Drug User Fee Act date.

PTC Therapeutics’ product TranslarnaTM (ataluren) received a conditional approval in Europe in 2014, which was renewed in November 2016 with a 
request for a new randomized placebo-controlled 18-month study by the Committee for Medicinal Products for Human Use of the EMA; however, the FDA 
informed the sponsor in a CRL in October 2017, as well as in its response to PTC Therapeutics’ appeal, that the FDA is unable to approve the application 
in its current form. While TranslarnaTM targets a different set of DMD patients from those targeted by Sarepta’s Exondys 51®, it is also limited to a subset 
of patients who carry a specific mutation. Conversely, pamrevlumab is intended to treat DMD patients without limitation to type of mutation. 

Pamrevlumab may also face competition from other drugs currently in clinical development in patient recruiting and enrollment in clinical trials, and, if 
approved, in commercialization. Examples of those compounds currently under clinical development are the drug candidates from Pfizer, Sarepta and 
Italfarmaco Group.  

23

 
MANUFACTURE AND SUPPLY

We continue to enter into contractual arrangements with qualified third-party manufacturers to manufacture and package our products and product 
candidates. We believe this manufacturing strategy enables us to more efficiently direct financial resources to the research, development and 
commercialization of product candidates rather than diverting resources to establishing a significant internal manufacturing infrastructure, unless there is 
additional strategic value for establishing manufacturing capabilities, such as in China. As our product candidates proceed through development, we 
explore or enter into longer term commercial supply agreements with key suppliers and manufacturers in order to meet the ongoing and planned clinical 
and commercial supply needs for ourselves and our partners. Our timing of entry into these agreements is based on the current development and 
commercialization plans.

Roxadustat

Roxadustat is a small-molecule drug manufactured from generally available commercial starting materials and chemical technologies and multi-purpose 
equipment available from many third-party contract manufacturers. We have entered into commercial supply arrangements with Shanghai SynTheAll 
Pharmaceutical Co., Ltd. (“WuXi STA”) and Catalent Pharma Solutions, LLC (“Catalent”) as our primary manufacturers of roxadustat drug substance (also 
known as active pharmaceutical ingredient or “API”) and roxadustat drug product, respectively. WuXi STA is located in China and currently supplies our 
API globally except for China, for which it manufactures an intermediate to be further manufactured by FibroGen Beijing. WuXi STA has passed 
inspections by several regulatory agencies, including the FDA and NMPA, and is Current Good Manufacturing Practice (“cGMP”) compliant. Catalent is 
located in the U.S. and supplies our drug product tablets globally except for Japan, where they are manufactured by Astellas, and China, where they are 
manufactured by FibroGen Beijing. Catalent has passed several regulatory inspections, including by the FDA, and manufactures commercial products for 
other clients.

In China, our Beijing facility received the Good Manufacturing Practice license for API and drug product. We are manufacturing drug product at our 
FibroGen Beijing manufacturing facility for commercial supply, but we are not currently manufacturing API at this facility. We are manufacturing API at 
our Cangzhou manufacturing facility, which is fully qualified and licensed. We may also qualify a third-party manufacturer to produce commercial API 
under the Marketing Authorization Holder System program.

Pamrevlumab

We have entered into a clinical and commercial supply agreement for the manufacture of pamrevlumab with Samsung Biologics Co., Ltd., which passed 
several regulatory inspections, including by the FDA, and manufactures commercial products for other clients. We are transitioning our manufacturing of 
pamrevlumab from Boehringer Ingelheim to Samsung Biologics Co., Ltd.

GOVERNMENT REGULATION

Our business activities and operations, including the clinical testing, manufacturing, labeling, storage, distribution, record keeping, advertising, promotion, 
import, export and marketing of our product candidates, among other things, are subject to extensive regulation by governmental authorities in the U.S., 
China, and other countries. The process of obtaining regulatory approvals and the subsequent compliance with appropriate federal, state, local and foreign 
statutes and regulations, including in Europe and China, requires the expenditure of substantial time and financial resources. Compliance with 
environmental laws, rules, and regulations has not had, and is not expected to have, a material effect on our capital expenditures, results of operations, or 
competitive position, and we do not currently anticipate material capital expenditures for environmental control facilities. 

Failure to comply with the applicable requirements at any time during the product development process, approval process or after approval may subject an 
applicant and/or sponsor to a variety of administrative or judicial sanctions, including refusal by the applicable regulatory authority to approve pending 
applications, withdrawal of an approval, imposition of a clinical hold, issuance of warning letters and other types of letters, product recalls, product 
seizures, total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, restitution, disgorgement of profits, or 
civil or criminal investigations and penalties brought by FDA and the Department of Justice, or other governmental entities.

24

 
U.S. Product Approval Process

In the U.S., the FDA regulates drugs and biological products, or biologics, under the Public Health Service Act, as well as the FDCA, which is the primary 
law for regulation of drug products. Both drugs and biologics are subject to the regulations and guidance implementing these laws. 

The results of the preclinical studies, together with manufacturing information and analytical data, are submitted to the FDA as part of the IND, which 
includes a protocol detailing, among other things, the objectives of the clinical trial. The IND will become effective automatically 30 days after receipt by 
the FDA, unless the FDA raises concerns or questions about the conduct of the trials as outlined in the IND prior to that time. In this case, the IND sponsor 
and the FDA must resolve any outstanding concerns before clinical trials can proceed. 

Further, the protocol for each clinical trial must be reviewed and approved by an independent institutional review board, either centrally or individually at 
each institution at which the clinical trial will be conducted. 

The results of preclinical studies and clinical trials, together with detailed information on the manufacture, composition and quality of the product 
candidate, are submitted to the FDA in the form of an NDA (for a drug) or BLA (for a biologic), requesting approval to market the product. The application 
must be accompanied by a significant user fee payment. The FDA has substantial discretion in the approval process and may refuse to accept any 
application or decide that the data is insufficient for approval and require additional preclinical, clinical or other studies.

Review of Application

Once the NDA or BLA submission is accepted for filing, which occurs, if at all, 60 days after submission, the FDA informs the applicant of the specific 
date by which the FDA intends to complete its review. During the approval process, the FDA reviews NDAs and BLAs to determine, among other things, 
whether the proposed product is safe and effective for its intended use, and whether the product is manufactured in accordance with cGMPs to assure and 
preserve the product’s identity, strength, quality and purity. The FDA may require Risk Evaluation and Mitigation Strategy to assure safe use of the 
product, and inspections of manufacturing facilities (for cGMP compliance) and clinical trial sites (for integrity of data supporting safety and efficacy). The 
FDA may also convene an advisory committee of external experts to review issues relating to risk, benefit and interpretation of clinical trial data. The FDA 
may require post-marketing testing and surveillance to monitor safety or efficacy of a product. FDA will issue either an approval of the NDA or BLA or a 
CRL detailing the deficiencies and information required in order for reconsideration of the application.

Post-Approval Requirements

Even after approval, drugs and biologics manufactured or distributed pursuant to FDA approvals are subject to continuous regulation by the FDA, 
including, among other things, requirements relating to recordkeeping, periodic reporting, product distribution, advertising and promotion and reporting of 
adverse experiences with the product. 

In addition, entities involved in the manufacture and distribution of approved drugs and biologics are required to register their establishments with the FDA 
and state agencies and are subject to periodic unannounced inspections by the FDA and these state agencies for compliance with cGMP requirements. The 
FDA requires prior approval before implementing any changes to the manufacturing process, investigations and corrections of any deviations from cGMP, 
and impose reporting and documentation requirements on the sponsor and any third-party manufacturer the sponsor may use. Accordingly, manufacturers 
must expend time, money, and effort in the area of production and quality control to maintain cGMP compliance.

The FDA strictly regulates marketing, labeling, advertising and promotion of products that are placed on the market. Drugs may be promoted only for the 
approved indications and in accordance with the provisions of the approved label. The FDA and other agencies actively enforce the laws and regulations 
prohibiting the promotion of off-label uses, and a company in violation may be subject to significant liability.

25

 
Federal and State Fraud and Abuse and Healthcare and Transparency Laws and Regulations

In addition to FDA restrictions on marketing of pharmaceutical products, federal and state healthcare laws restrict certain business practices in the 
biopharmaceutical industry. These laws include, but are not limited to, anti-kickback, false claims, data privacy and security, and transparency statutes and 
regulations.

The federal Anti-Kickback Statute prohibits, among other things, knowingly and willfully offering, paying, soliciting or receiving remuneration, directly or 
indirectly, to induce, or in return for, purchasing, leasing, ordering or arranging for the purchase, lease or order of any good, facility, item or service 
reimbursable under Medicare, Medicaid or other federal healthcare programs. Although there are a number of statutory exemptions and regulatory safe 
harbors protecting certain common activities from prosecution, the exemptions and safe harbors are drawn narrowly. The intent standard under the Anti-
Kickback Statute was amended by the Patient Protection and Affordable Care Act as amended by the Health Care and Education Reconciliation Act of 
2010 (collectively “PPACA”), to a stricter intent standard such that a person or entity no longer needs to have actual knowledge of this statute or the 
specific intent to violate it in order to have committed a violation. In addition, PPACA codified case law that a claim including items or services resulting 
from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the civil False Claims Act (discussed below). 

The federal false claims laws and federal civil monetary penalties statute prohibit, among other things, any person or entity from knowingly presenting, or 
causing to be presented, a false or fraudulent claim for payment or approval to the federal government or knowingly making, using or causing to be made 
or used a false record or statement material to a false or fraudulent claim to the federal government. The federal Health Insurance Portability and 
Accountability Act of 1996 (“HIPAA”), created new federal criminal statutes that prohibit knowingly and willfully executing, or attempting to execute, a 
scheme to defraud any healthcare benefit program, including private third-party payors and knowingly and willfully falsifying, concealing or covering up a 
material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of, or payment for, healthcare benefits, items 
or services.

In addition, we may be subject to federal and state healthcare regulations. HIPAA, as amended by the Health Information Technology for Economic and 
Clinical Health Act, and its implementing regulations, imposes certain requirements on covered entities, business associates and their covered 
subcontractors relating to the privacy, security and transmission of individually identifiable health information. In addition, state laws complicate 
compliance efforts by the way they govern the privacy and security of health information in certain circumstances, many of which differ from each other in 
significant ways and with varying effects.

Additionally, the federal Physician Payments Sunshine Act within the PPACA, and its implementing regulations, require that certain manufacturers of 
drugs, devices, biologicals and medical supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program 
(with certain exceptions) to report information related to certain payments or other transfers of value made or distributed to physicians, other healthcare 
professionals, and teaching hospitals, or to entities or individuals at the request of, or designated on behalf of, the physicians and teaching hospitals and to 
report annually certain ownership and investment interests held by physicians and their immediate family members.

Also, many states have similar healthcare statutes or regulations that apply to items and services reimbursed under Medicaid and other state programs, or, 
in several states, apply regardless of the payor. If our operations are found to be in violation of any of the health regulatory laws described above or any 
other laws that apply to us, we may be subject to penalties, including potentially significant criminal, civil and/or administrative penalties, damages, fines, 
disgorgement, individual imprisonment, exclusion of products from reimbursement under government programs, contractual damages, reputational harm, 
administrative burdens, diminished profits and future earnings and the curtailment or restructuring of our operations, any of which could adversely affect 
our ability to operate our business and our results of operations. To the extent that any of our products will be sold in a foreign country, we may be subject 
to similar foreign laws and regulations, which may include, for instance, applicable post-marketing requirements, including safety surveillance, anti-fraud 
and abuse laws and implementation of corporate compliance programs and reporting of payments or transfers of value to healthcare professionals.

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Data Privacy and Security

In the ordinary course of our business, we may process confidential, proprietary, and sensitive information, including personal data. Accordingly, we are, or 
may become, subject to numerous data privacy and security obligations, including federal, state, local, and foreign laws, regulations, guidance, and industry 
standards related to data privacy and security. Such obligations may include, without limitation, the Federal Trade Commission Act, the California 
Consumer Privacy Act of 2018 (“CCPA”), the Canadian Personal Information Protection and Electronic Documents Act, Canada’s Anti-Spam Legislation, 
the European Union’s General Data Protection Regulation 2016/679 (“EU GDPR”), the EU GDPR as it forms part of United Kingdom (“UK”) law by 
virtue of section 3 of the European Union (Withdrawal) Act 2018 (“UK GDPR”), the ePrivacy Directive, and the Payment Card Industry Data Security 
Standard. Several states within the United States have enacted or proposed data privacy and security laws. For example, Virginia passed the Consumer Data 
Protection Act, and Colorado passed the Colorado Privacy Act. Additionally, we are, or may become, subject to various U.S. federal and state consumer 
protection laws which require us to publish statements that accurately and fairly describe how we handle personal data and choices individuals may have 
about the way we handle their personal data.

The CCPA and EU GDPR are examples of the increasingly stringent and evolving regulatory frameworks related to personal data processing that may 
increase our compliance obligations and exposure for any noncompliance. For example, the CCPA imposes obligations on covered businesses to provide 
specific disclosures related to a business’s collection, use, and disclosure of personal data and to respond to certain requests from California residents 
related to their personal data (for example, requests to know of the business’s personal data processing activities, to delete the individual’s personal data, 
and to opt out of certain personal data disclosures). Also, the CCPA provides for civil penalties and a private right of action for data breaches which may 
include an award of statutory damages. In addition, the California Privacy Rights Act of 2020 (“CPRA”), effective January 1, 2023, expanded the CCPA 
by, among other things, giving California residents the ability to limit use of certain sensitive personal data, establishing restrictions on personal data 
retention, expanding the types of data breaches that are subject to the CCPA’s private right of action, and establishing a new California Privacy Protection 
Agency to implement and enforce the new law.

Foreign data privacy and security laws (including but not limited to the EU GDPR and UK GDPR) impose significant and complex compliance obligations 
on entities that are subject to those laws. As one example, the EU GDPR applies to any company established in the EEA and to companies established 
outside the EEA that process personal data in connection with the offering of goods or services to data subjects in the EEA or the monitoring of the 
behavior of data subjects in the EEA.  These obligations may include limiting personal data processing to only what is necessary for specified, explicit, and 
legitimate purposes; requiring a legal basis for personal data processing; requiring the appointment of a data protection officer in certain circumstances; 
increasing transparency obligations to data subjects; requiring data protection impact assessments in certain circumstances; limiting the collection and 
retention of personal data; increasing rights for data subjects; formalizing a heightened and codified standard of data subject consents; requiring the 
implementation and maintenance of technical and organizational safeguards for personal data; mandating notice of certain personal data breaches to the 
relevant supervisory authority(ies) and affected individuals; and mandating the appointment of representatives in the UK and/or the EU in certain 
circumstances.

See the section titled “Risk Factors” for additional information about the laws and regulations to which we may become subject and about the risks to our 
business associated with such laws and regulations.

Pharmaceutical Coverage, Pricing and Reimbursement

In both domestic and foreign markets, our sales of any approved products will depend in part on the availability of coverage and adequate reimbursement 
from third-party payors. Third-party payors include government health administrative authorities, managed care providers, private health insurers and other 
organizations. Patients who are prescribed treatments for their conditions and providers performing the prescribed services generally rely on third-party 
payors to reimburse all or part of the associated healthcare costs. Patients are unlikely to use our products unless coverage is provided and reimbursement is 
adequate to cover a significant portion of the cost of our products. Third-party payors are increasingly focused on containing healthcare costs by 
challenging the price and examining the cost-effectiveness of medical products and services. In addition, significant uncertainty exists as to the coverage 
and reimbursement status of newly approved healthcare product candidates. 

27

 
Because each third-party payor individually approves coverage and reimbursement levels, obtaining coverage and adequate reimbursement is a time-
consuming, costly and sometimes unpredictable 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 would be obtained, and we may need to conduct expensive pharmacoeconomic studies in order 
to demonstrate the cost-effectiveness of our products. This process could delay the market acceptance of any product and could have a negative effect on 
our future revenues and operating results. We cannot be certain that our products and our product candidates will be considered cost-effective. If we are 
unable to obtain coverage of, and adequate reimbursement and payment levels for, our product candidates from third-party payors, physicians may limit 
how much or under what circumstances they will prescribe or administer them and patients may decline to purchase them. This in turn could affect our 
ability to successfully commercialize our products and impact our profitability, results of operations, financial condition and future success.

In addition, in many foreign countries, particularly the countries of the European Union and China, the pricing of prescription drugs is subject to 
government control. In some non-U.S. jurisdictions, the proposed pricing for a drug must be approved before it may be lawfully marketed. The 
requirements governing drug pricing vary widely from country to country. We may face competition for our product candidates from lower-priced products 
in foreign countries that have placed price controls on pharmaceutical products. In addition, there may be importation of foreign products that compete with 
our own products, which could negatively impact our profitability.

Healthcare Reform

In the U.S. and foreign jurisdictions, we expect there will continue to be, a number of legislative and regulatory changes to the healthcare system that could 
affect the future results of our operations as we directly commercialize our products. In particular, there continues to be a number of initiatives at the U.S. 
federal and state level that seek to reduce healthcare costs. 

For example, as a cost containment measure, PPACA established: an annual, nondeductible fee on any entity that manufactures or imports certain branded 
prescription drugs and biologic agents; revised the methodology by which rebates owed by manufacturers to the state and federal government for covered 
outpatient drugs under the Medicaid Drug Rebate Program are calculated; increased the minimum Medicaid rebates owed by most manufacturers under the 
Medicaid Drug Rebate Program; and extended the Medicaid Drug Rebate program to utilization of prescriptions of individuals enrolled in Medicaid 
managed care organizations. There have been executive, judicial and Congressional challenges to certain aspects of the PPACA. In addition, on August 16, 
2022, President Biden signed the Inflation Reduction Act of 2022 (“IRA”) into law, which among other things, extends enhanced subsidies for individuals 
purchasing health insurance coverage in PPACA marketplaces through plan year 2025. The IRA also eliminates the “donut hole” under the Medicare Part 
D program beginning in 2025 by significantly lowering the beneficiary maximum out-of-pocket cost and creating a new manufacturer discount program. It 
is possible that the PPACA will be subject to future judicial or Congressional challenges, other litigation, and healthcare reform measures of the Biden 
administration that may impact the PPACA and our business.

Further, in the U.S. there was heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products, which 
resulted in several Presidential executive orders, 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 government payor programs, and review the relationship 
between pricing and manufacturer patient programs. The IRA also, among other things, (1) directs the U.S. Department of Health and Human Services to 
negotiate the price of certain single-source drugs and biologics covered under Medicare and (2) imposes rebates under Medicare Part B and Medicare Part 
D to penalize price increases that outpace inflation. These provisions will take effect progressively starting in fiscal year 2023, although they may be 
subject to legal challenges. It is currently unclear how the IRA will be implemented but is likely to have a significant impact on the pharmaceutical 
industry. Further, the Biden administration released an additional executive order on October 14, 2022, directing U.S. Department of Health and Human 
Services to report on how the Center for Medicare and Medicaid Innovation can be further leveraged to test new models for lowering drug costs for 
Medicare and Medicaid beneficiaries. It is unclear whether these or similar policy initiatives will be implemented in the future. Congress is also considering 
additional health reform measures. 

Some states implemented, and other states are considering, price controls or patient access constraints under the Medicaid program, and some states are 
considering price-control regimes that would apply to broader segments of their populations that are not Medicaid-eligible. Further, it is possible that 
additional governmental action is taken in response to the COVID-19 pandemic. Due to the volatility in the current economic and market dynamics, we are 
unable to predict the impact of any unforeseen or unknown legislative, regulatory, payor or policy actions, which may include cost containment and 
healthcare reform measures. Such policy actions could have a material adverse impact on our profitability.

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Approval Process and Other Regulation in China

The pharmaceutical industry in China is highly regulated. The primary regulatory authority is the NMPA, including its provincial and local branches. As a 
developer, manufacturer and supplier of drugs, we are subject to regulation and oversight by the NMPA and its provincial and local branches. The Drug 
Administration Law of China provides the basic legal framework for the administration of the production and sale of pharmaceuticals in China and covers 
the manufacturing, distributing, packaging, pricing and advertising of pharmaceutical products. Its implementing regulations set forth detailed rules with 
respect to the administration of pharmaceuticals in China. In addition, we are, and we will be, subject to other Chinese laws and regulations that are 
applicable to business operators, manufacturers and distributors in general.

Pharmaceutical Clinical Development

A new drug must be approved by the NMPA before it can be manufactured and marketed for sale. To obtain NMPA approval, the applicant must conduct 
clinical trials, which must be approved by the NMPA and are subject to the NMPA’s supervision and inspection. There are four phases of clinical trials. 
Application for registration of new drugs requires completion of Phase 1, 2 and 3 of clinical trials, similar to the U.S. In addition, the NMPA may require 
the conduct of Phase 4 studies as a condition to approval.

Phase 4 studies are post-marketing studies to assess the therapeutic effectiveness of and adverse reactions to the new drug, including an evaluation of the 
benefits and risks, when used among the general population or specific groups, with findings used to inform adjustments to dosage, among other things.

NDA and Approval to Market

China requires approval of the NDA as well as the manufacturing facility before a drug can be marketed in China. Approval and oversight are performed at 
national and provincial levels of the NMPA, involve multiple agencies and consist of various stages of approval.

Under the applicable drug registration regulations, drug registration applications are divided into three different types, namely Domestic NDA, Domestic 
Generic Drug Application, and Imported Drug Application. Drugs fall into one of three categories, namely chemical medicine, biological product or 
traditional Chinese or natural medicine.

Foreign Regulation Outside of China

In order to market any product outside of the U.S., we would need to comply with numerous and varying regulatory requirements of other countries and 
jurisdictions regarding quality, safety and efficacy and governing, among other things, clinical trials, manufacturing, marketing authorization, commercial 
sales and distribution of our products. Whether or not we obtain FDA approval for a product, we would need to obtain the necessary approvals by the 
comparable foreign regulatory authorities before we can commence clinical trials or marketing of the product in foreign countries and jurisdictions. 
Although many of the issues discussed above with respect to the U.S. apply similarly in the context of other countries we are seeking approval in, including 
Europe and China, the approval process varies between countries and jurisdictions and can involve different amounts of product testing and additional 
administrative review periods. For example, in Europe and in China, a sponsor must submit a clinical trial application, much like an IND prior to the 
commencement of human clinical trials. A clinical trial application must be submitted to each national health authority and an independent ethics 
committee.

For other countries outside of the European Union, such as China and the countries in Eastern Europe, Latin America or Asia, the requirements governing 
the conduct of clinical trials, product licensing, pricing, and reimbursement vary from country to country. Regulatory approval in one country or 
jurisdiction does not ensure regulatory approval in another, but a failure or delay in obtaining regulatory approval in one country or jurisdiction may 
negatively impact the regulatory approval process in other countries.

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Regulatory Exclusivity for Approved Products

U.S. Patent Term Restoration

Depending upon the timing, duration, and specifics of the FDA approval of our product candidates, some of our U.S. patents may be eligible for limited 
patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984, commonly referred to as the Hatch-Waxman Act. The 
Hatch-Waxman Act permits a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA 
regulatory review process. The patent term restoration period is generally one-half the time between the effective date of an initial IND and the submission 
date of an NDA or BLA, plus the time between the submission date of the NDA or BLA and the approval of that product candidate application. Patent term 
restoration cannot, however, extend the remaining term of a patent beyond a total of 14 years from the product’s approval date. In addition, only one patent 
applicable to an approved product is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent. 
The U.S. Patent and Trademark Office, in consultation with the FDA, reviews and approves applications for any patent term extension or restoration. In the 
future, we expect to apply for restoration of patent term for patents relating to each of our product candidates in order to add patent life beyond the current 
expiration date of such patents, depending on the length of the clinical trials and other factors involved in the filing of the relevant NDA or BLA.

Market exclusivity provisions under the U.S. federal Food, Drug & Cosmetic Act can also delay the submission or the approval of certain applications of 
companies seeking to reference another company’s NDA or BLA. The Hatch-Waxman Act provides a 5-year period of exclusivity to any approved NDA 
for a product containing a New Chemical Entity (“NCE”) never previously approved by FDA either alone or in combination with another active moiety. No 
application or abbreviated NDA directed to the same NCE may be submitted during the 5-year exclusivity period, except that such applications may be 
submitted after four years if they contain a certification of patent invalidity or non-infringement of the patents listed with the FDA by the innovator NDA.

Biologic Price Competition and Innovation Act

The Biologics Price Competition and Innovation Act of 2009 (“BPCIA”), established an abbreviated pathway for the approval of biosimilar and 
interchangeable biological products. The abbreviated regulatory approval pathway establishes legal authority for the FDA to review and approve biosimilar 
biologics, including the possible designation of a biosimilar as “interchangeable” based on similarity to an existing branded product. Under the BPCIA, an 
application for a biosimilar product cannot be approved by the FDA until 12 years after the original branded product was approved under a BLA. However, 
an application may be submitted after four years if it contains a certification of patent invalidity or non-infringement to one of the patents listed with the 
FDA by the innovator BLA holder. The BPCIA is complex and is only beginning to be interpreted and implemented by the FDA. As a result, its ultimate 
impact, implementation, and interpretation are subject to uncertainty.

Orphan Drug Act

Pamrevlumab has received orphan drug designation in IPF, LAPC, and DMD in the U.S. Under the Orphan Drug Act, the FDA may grant orphan 
designation to a drug or biological product intended to treat a rare disease or condition, which is a disease or condition that affects fewer than 200,000 
individuals in the U.S., or if it affects more than 200,000 individuals in the U.S. there is no reasonable expectation that the cost of developing and making a 
drug product available in the U.S. for this type of disease or condition will be recovered from sales of the product. Orphan product designation must be 
requested before submitting an NDA. After the FDA grants orphan product designation, the identity of the therapeutic agent and its potential orphan use are 
disclosed publicly by the FDA. Orphan product designation does not convey any advantage in or shorten the duration of the regulatory review and approval 
process.

30

 
If a product that has orphan designation subsequently receives the first FDA approval for the disease or condition for which it has such designation, the 
product is entitled to orphan product exclusivity, which means that the FDA may not approve any other applications to market the same drug or biological 
product for the same indication for seven years, except in limited circumstances, such as a showing of clinical superiority to the product with orphan 
exclusivity. The designation of such drugs also entitles a party to financial incentives such as opportunities for grant funding towards clinical trial costs, tax 
advantages and user-fee waivers. Competitors, however, may receive approval of different products for the indication for which the orphan product has 
exclusivity or obtain approval for the same product but for a different indication for which the orphan product has exclusivity. Orphan product exclusivity 
also could block the approval of one of our products for seven years if a competitor obtains approval of the same drug or biological product as defined by 
the FDA or if our drug candidate is determined to be contained within the competitor’s product for the same indication or disease. If a drug product 
designated as an orphan product receives marketing approval for an indication broader than what is designated, it may not be entitled to orphan product 
exclusivity in any indication.

The EMA has granted Orphan Medicinal Product Designation to pamrevlumab for the treatment of DMD. Orphan Medicinal Product Designation status in 
Europe has similar but not identical benefits in that jurisdiction.

Products receiving orphan designation in Europe can receive ten years of market exclusivity, during which time no similar medicinal product for the same 
indication may be placed on the market. The ten-year market exclusivity may be reduced to six years if, at the end of the fifth year, it is established that the 
product no longer meets the criteria for orphan designation; for example, if the product is sufficiently profitable not to justify maintenance of market 
exclusivity. Additionally, marketing authorization may be granted to a similar product for the same indication at any time if the second applicant can 
establish that its product, although similar, is safer, more effective or otherwise clinically superior; the initial applicant consents to a second orphan 
medicinal product application; or the initial applicant cannot supply enough orphan medicinal product. An orphan product can also obtain an additional two 
years of market exclusivity in Europe for pediatric studies. No extension to any supplementary protection certificate can be granted on the basis of pediatric 
studies for orphan indications.

Foreign Country Data Exclusivity

Europe also provides opportunities for additional market exclusivity. For example, in Europe, upon receiving marketing authorization, a NCE generally 
receives eight years of data exclusivity and an additional two years of market exclusivity. If granted, data exclusivity prevents regulatory authorities in 
Europe from referencing the innovator’s data to assess a generic application. During the additional two-year period of market exclusivity, a generic 
marketing authorization can be submitted, and the innovator’s data may be referenced, but no generic product can be marketed until the expiration of the 
market exclusivity.

In China, there is also an opportunity for data exclusivity for a period of six years for data included in an NDA applicable to a NCE. According to the 
Implementing Regulations of the China Drug Administration Law, the Chinese government protects undisclosed data from drug studies and prevents the 
approval of an application made by another company that uses the undisclosed data for the approved drug. In practice, the NMPA has not established an 
effective mechanism to enforce data exclusivity. The NMPA issued a draft regulation on regulatory data protection on April 25, 2018 for public comments 
but this draft regulation has yet to be finalized and implemented. 

In addition, if an approved drug manufactured in China qualifies as an innovative drug or an improved new drug before December 1, 2019, such drugs will 
be eligible for a monitoring surveillance period for up to five years. During this post-marketing observation period, the NMPA will not accept marketing 
authorization applications filed by another company for the same product. Nor will the NMPA approve marketing authorization applications filed by 
another company to produce, change dosage form of or import the drug while the innovative or improved new drug is under observation for the purpose of 
protecting public health. The approved manufacturer is required to provide an annual report to the regulatory department of the province, autonomous 
region or municipality directly under the central government where it is located. 

Each of the data exclusivity period and the observation period runs from the date of approval for production of the NCE or innovative or improved new 
drug, as the case may be.

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INTELLECTUAL PROPERTY

Our success depends in part upon our ability to obtain and maintain patent and other intellectual property protection for our product candidates including 
compositions-of-matter, dosages, and formulations, manufacturing methods, and novel applications, uses and technological innovations related to our 
product candidates and core technologies. We also rely on trade secrets, know-how and continuing technological innovation to further develop and 
maintain our competitive position.

Our policy is to seek to protect our proprietary position by, among other methods, filing U.S. and foreign patent applications related to our proprietary 
technologies, inventions and any improvements that we consider important to the development and implementation of our business and strategy. Our ability 
to maintain and solidify our proprietary position for our products and technologies will depend, in part, on our success in obtaining and enforcing valid 
patent claims. Additionally, we may benefit from a variety of regulatory frameworks in the U.S., Europe, China, and other territories that provide periods of 
non-patent-based exclusivity for qualifying drug products. Refer to “Government Regulation — Regulatory Exclusivity for Approved Products.”

We cannot ensure that patents will be granted with respect to any of our pending patent applications or with respect to any patent applications that may be 
filed by us in the future, nor can we ensure that any of our existing or subsequently granted patents will be useful in protecting our drug candidates, 
technological innovations, and processes. Additionally, any existing or subsequently granted patents may be challenged, invalidated, circumvented or 
infringed. We cannot guarantee that our intellectual property rights or proprietary position will be sufficient to permit us to take advantage of current 
market trends or otherwise to provide or protect competitive advantages. Furthermore, our competitors may be able to independently develop and 
commercialize similar products, or may be able to duplicate our technologies, business model, or strategy, without infringing our patents or otherwise using 
our intellectual property.

Our extensive worldwide patent portfolio includes multiple granted and pending patent applications relating to roxadustat and pamrevlumab. Currently 
granted patents relating to composition-of-matter for roxadustat and for pamrevlumab are expected, for each product candidate, to expire in 2024 or 2025, 
in each case exclusive of any patent term extension that may be available. U.S. and foreign patents relating to crystalline forms of roxadustat are expected 
to expire in 2033, exclusive of any extension. Additional patents and patent applications relating to manufacturing processes, formulations, and various 
therapeutic uses, including treatment of specific indications and improvement of clinical parameters, provide further protection for product candidates. 

The protection afforded by any particular patent depends upon many factors, including the type of patent, scope of coverage encompassed by the granted 
claims, availability of extensions of patent term, availability of legal remedies in the particular territory in which the patent is granted, and validity and 
enforceability of the patent. Changes in either patent laws or in the interpretation of patent laws in the U.S. and other countries could diminish our ability to 
protect our inventions and to enforce our intellectual property rights. Accordingly, we cannot predict with certainty the enforceability of any granted patent 
claims or of any claims that may be granted from our patent applications.

The biotechnology and pharmaceutical industries are characterized by extensive litigation regarding patents and other intellectual property rights. Our 
ability to maintain and solidify our proprietary position for our products and core technologies will depend on our success in obtaining effective claims and 
enforcing those claims once granted. We have been in the past and are currently involved in various legal proceedings with respect to our patents and patent 
applications and may be involved in such proceedings in the future. Additionally, we may claim that a third party infringes our intellectual property, or a 
third party may claim that we infringe its intellectual property. Such legal proceedings may be associated with significant expenses, damages, attorneys’ 
fees, costs of proceedings, and experts’ fees, and management and employees may be required to spend significant time in connection with these actions.

Because of the extensive time required for clinical development and regulatory review of a product candidate we may develop, it is possible that any patent 
related to our product candidates may expire before any of our product candidates can be commercialized, or may remain in force for only a short period of 
time following commercialization, thereby reducing the advantage afforded by any such patent.

The patent positions for our most advanced programs are summarized below.

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Roxadustat Patent Portfolio

Our roxadustat patent portfolio includes multiple granted U.S. patents offering protection for roxadustat, including protection for composition-of-matter, for 
pharmaceutical compositions, and for methods for treating anemia. Exclusive of any patent term extension, the last of the granted U.S. patents relating to 
the composition-of-matter of roxadustat is due to expire in 2025, and granted foreign patents are due to expire in 2024. U.S. and foreign patents relating to 
crystalline forms of roxadustat are due to expire in 2033, and U.S. and foreign patents relating to photostable formulations of roxadustat are due to expire in 
2034. 

In 2020, oppositions were filed against our European Patent No. 2872488 (the “`488 Patent”), which claims a crystalline form of roxadustat, and our 
European Patent No. 3003284 (the “`284 Patent”), which claims photostable formulations of roxadustat. Similar challenges have been filed in China 
against patents which claim a crystalline form of roxadustat. Final resolution of the opposition proceedings will take time and we cannot be assured that 
these patents will survive these proceedings as originally granted or at all.

If roxadustat is approved in the U.S. prior to expiration of the U.S. composition of matter protection, a full five-year patent term extension under the Hatch-
Waxman act will be available, which extension would expire in 2030. Refer to “Government Regulation — Regulatory Exclusivity for Approved Products 
— U.S. Patent Term Restoration.”

We also hold various U.S. and foreign granted patents and pending patent applications directed to roxadustat manufacturing processes, formulations, and 
methods for use. 

Roxadustat China Patent Portfolio

Our roxadustat China patent portfolio includes granted patents covering composition-of-matter, pharmaceutical compositions, methods of use, and 
manufacturing processes, as well as medicaments for treating anemia and other conditions. Pending the oppositions referenced in the previous section, 
patents relating to roxadustat composition-of-matter and crystalline forms are due to expire in 2024 and 2033, respectively.

HIF Anemia-Related Technologies Patent Portfolio

We also have an extensive worldwide patent portfolio providing broad protection for proprietary technologies relating to the treatment of anemia and 
associated conditions. This portfolio currently contains granted patents and pending patent applications providing exclusivity for use of compounds falling 
within various and overlapping classes of HIF-PH inhibitors to achieve various therapeutic effects.

Various legal challenges have been initiated against this portfolio in several territories, including in Europe, the United Kingdom, and Japan. Regardless of 
the final outcome of any such actions, the potential narrowing or revocation of any of these patents does not affect our exclusivity for roxadustat or our 
freedom-to-operate with respect to use of roxadustat for the treatment of anemia in these or in other territories. A settlement has been reached in the 
litigation in Canada, resulting in the discontinuance of the action and leaving FibroGen’s Canadian patents valid and enforceable.

In April 2020, in response to an invalidation action brought against certain of our United Kingdom patents by Akebia, the United Kingdom court handed 
down a decision invalidating certain FibroGen United Kingdom patents. In August 2021, the United Kingdom Court of Appeal handed down a decision 
favorable to FibroGen, declaring several of the patents valid. Akebia has applied to the Supreme Court of the United Kingdom for permission to appeal the 
Court of Appeal ruling. 

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Pamrevlumab Patent Portfolio

Our pamrevlumab patent portfolio includes U.S. patents providing composition-of-matter protection for pamrevlumab and related antibodies, and for 
methods of using such in the treatment of fibroproliferative disorders, including IPF, liver fibrosis, and pancreatic cancer. Exclusive of any patent term 
extension, the last of the U.S. patents relating to pamrevlumab composition-of-matter is due to expire in 2025. Corresponding foreign patents are due to 
expire, exclusive of any patent term extension, in 2024.

We believe that, if pamrevlumab is approved in the U.S. prior to expiration of the composition-of-matter patent, a full five-year patent term extension under 
the Hatch-Waxman act will be available, extending the term of that patent to 2030. 

We also hold additional granted U.S. and foreign patents and pending patent applications directed to the use of pamrevlumab to treat IPF, DMD, pancreatic 
cancer, liver fibrosis, and other disorders. 

Trade Secrets and Know-How

In addition to patents, we rely upon proprietary trade secrets and know-how and continuing technological innovation to develop and maintain our 
competitive position. We seek to protect our proprietary information, in part, using confidentiality and other terms in agreements with our commercial 
partners, collaboration partners, consultants and employees. Such agreements are designed to protect our proprietary information and may also grant us 
ownership of technologies that are developed through a relationship with a third party, such as through invention assignment provisions. Agreements may 
expire and we could lose the benefit of confidentiality, or our agreements may be breached, and we may not have adequate remedies for any breach. In 
addition, our trade secrets may otherwise become known or be independently discovered by competitors.

To the extent that our commercial partners, collaboration partners, employees and consultants use intellectual property owned by others in their work for 
us, disputes may arise as to the rights in related or resulting know-how and inventions.

In-Licenses

Bristol-Myers Squibb Company (Medarex, Inc.)

Effective July 9, 1998 and as amended on June 30, 2001 and January 28, 2002, we entered into a research and commercialization agreement with Medarex, 
Inc. and its wholly-owned subsidiary GenPharm International, Inc. (now, collectively, part of Bristol-Myers Squibb Company (“Medarex”)) to develop 
fully human monoclonal antibodies for potential anti-fibrotic therapies. Under the agreement, Medarex was responsible for using its proprietary 
immunizable transgenic mice (“HuMAb-Mouse technology”) during a specified research period (the “Research Period”), to produce fully human 
antibodies against our proprietary antigen targets, including CTGF, for our exclusive use.

The agreement granted us an option to obtain an exclusive worldwide, royalty-bearing, commercial license to develop antibodies derived from Medarex’s 
HuMAb-Mouse technology, for use in the development and commercialization of diagnostic and therapeutic products. In December 2002, we exercised 
that option with respect to twelve antibodies inclusive of the antibody from which pamrevlumab is derived. We granted back to Medarex an exclusive, 
worldwide, royalty-free, perpetual, irrevocable license, with the right to sublicense, to certain inventions created during the parties’ research collaboration, 
with such license limited to use by Medarex outside the scope of our licensed antibodies.

As a result of the exercise of our option to obtain the commercial license, Medarex is precluded from: 

(i) knowingly using any technology involving immunizable transgenic mice containing unrearranged human immunoglobulin genes with any of our 
antigen targets that were the subject of the agreement,

(ii) granting to a third party a commercial license that covers such antigen targets or those antibodies derived by Medarex during the Research Period, 
and

(iii) using any antibodies derived by Medarex during the Research Period, except as permitted under the agreement for our benefit or to prosecute patent 
applications in accordance with the agreement.

34

 
 
 
Medarex retained ownership of the patent rights relating to certain mice, mice materials, antibodies and hybridoma cell lines used by Medarex in 
connection with its activities under the agreement, and Medarex also owns certain claims in patents covering inventions that arise during the Research 
Period, which claims are directed to (i) compositions of matter (e.g., an antibody) except formulations of antibodies for therapeutic or diagnostic use, or (ii) 
methods of production. We own the patent rights to any inventions that arise during the Research Period that relate to antigens, as well as claims in patents 
covering inventions directed to (a) methods of use of an antibody, or (b) formulations of antibodies for therapeutic or diagnostic use. Upon exercise of our 
option to obtain the commercial license, we obtained the sole right but not obligation to control prosecution of patents relating solely to the licensed 
antibodies or products. Medarex has back-up patent prosecution rights in the event we decline to further prosecute or maintain such patents.

In addition to research support payments by us to Medarex during the Research Period, and an upfront commercial license fee in the form of 181,819 
shares of FibroGen Series D Convertible Preferred Stock paid upon exercise of our option, we committed development-related milestone payments of up to 
$11 million per therapeutic product containing a licensed antibody, and we have paid a $1 million development-related milestone, in the form of 133,333 
shares of FibroGen Series G Convertible Preferred Stock, and a cash payment of $2 million, for pamrevlumab to date. At our election, the remaining 
milestone payments may be paid in common stock of FibroGen, Inc., or cash.

With respect to our sales and sales by our affiliates, the agreement also requires us to pay Medarex low single-digit royalties for licensed therapeutic 
products and low double-digit royalties plus certain capped sales-based bonus royalties for licensed diagnostic products. With respect to sales of licensed 
products by a sublicensee, we may elect to pay the foregoing royalties based on our sublicensee’s sales, or a percentage (in the high-teens) of all payments 
received by us from such sublicensee. We are also required to reimburse Medarex any pass-through royalties, if any, payable under Medarex’s upstream 
license agreements with Medical Research Council and DNX. Royalties payable by us under the agreement are on a licensed product-by-licensed product 
and country-by-country basis and subject to reductions in specified circumstances, and royalties are payable for a period until either expiration of patents 
covering the applicable licensed product or a specified number of years following the first commercial sale of such product in the applicable country.

Unless earlier terminated, the agreement will continue in effect for as long as there are royalty payment obligations by us or our sublicensees. Either party 
may terminate the agreement for certain material breaches by the other party, or for bankruptcy, insolvency or similar circumstances. In addition, we may 
also terminate the agreement for convenience upon written notice.

HUMAN RESOURCES 

We had a total of 592 employees at FibroGen as of January 31, 2023. None of our U.S. employees are represented by a labor union. The employees of 
FibroGen Beijing are represented by a labor union under the China Labor Union Law. None of our employees have entered into a collective agreement with 
us.

We are highly committed to building a diverse, dedicated, and impassioned team to deliver innovative therapies to patients facing serious unmet medical 
needs. Our core values of excellence, respect for people, integrity, and empowerment are fundamental to how we attract, grow, engage, and retain our 
people. 

In 2022, we conducted a company-wide employee engagement survey. We had an overall participation rate of 92% with over 90% of employees reporting 
that they felt highly engaged. Further, for the first time an independent firm established a diversity, equity and inclusion index based upon 10 employee 
questions within the survey to measure the effectiveness of, and employee sentiment about, our progress in nurturing a culture of diversity, equity, 
belonging and inclusion; our diversity index score was 88%. These scores significantly exceed normative industry participation and engagement 
benchmarks.

The biotechnology industry is an extremely competitive labor market and recruiting and retaining employees is critical to the continued success of our 
business. We focus on recruiting, retaining, and developing employees from a diverse range of backgrounds to conduct our research, development, 
commercialization, and administrative activities. We also believe that to be an employer of choice, we must support the communities in which we live and 
operate. In 2022, we re-launched our high school and college internship program which provides opportunities for people of color and/or economically 
disadvantaged youth to contribute and learn for eight weeks at our U.S. operations.

35

 
We consistently review and evaluate our people practices to ensure that we attract, develop and retain a diverse, engaged and talented workforce. Our 
offerings include competitive, innovative and equitable pay practices, comprehensive health and wellness benefits, retirement and life insurance offerings, 
learning and giving programs, and flexible work arrangements. In addition to our employee and manager fundamentals programs, we offer personal 
coaching and resiliency sessions, as well as access to an on-demand global learning management system. In addition to annual compliance training on 
harassment prevention, our Code of Conduct, anti-bribery and data privacy, our employees are offered up to 20 hours of internal career development 
programs each year in addition to tuition reimbursement eligibility.

Our state-of-art, human capital management system, implemented in 2020, has significantly expanded our capabilities to develop and assess our 
employees. We build comprehensive development and succession plans at all levels in the organization to ensure that we have a strong pipeline of ready 
talent to meet our business outcomes.

Ensuring diversity in our workforce begins with role modeling and striving for diversity in senior management. On our Board of Directors, 3 of 9 members 
(33%) are female. Further, 3 of 9 members (33%) identify as Asian or Hispanic ethnicity. Notably, our U.S. workforce is 55% female. Our U.S. employees 
that self-report ethnicity are 66% Asian, Hispanic or Black. Of our U.S. Executive population (Vice President and above), 37.5% are female and of our U.S. 
executives that self-report ethnicity, 33.3% identify as Asian or Hispanic. Our China workforce is 58% female, and of our China Executives (Vice President 
and above) 50% are female. Across our workforce and our leadership, we have increased our female and ethnicity representation year over year and 
continue to expand our efforts and corporate objectives accordingly. One of our goals in 2023 is to increase female diversity at the executive director level 
and above.

In addition to furthering our investments in our human resources, we plan to continue our efforts in 2023 in critical environmental, social, and governance 
(“ESG”) areas. In 2022, we performed an ESG assessment of our operations and determined a number of goals for 2023, including adopting a policy to 
increase patient diversity in clinical trials and perform a climate impact analysis once the SEC adopts their climate disclosure regulations.

FACILITIES

Our corporate and research and development operations are located in San Francisco, California, where we lease approximately 234,000 square feet of 
office and laboratory space with approximately 30,000 square feet subleased. The lease for our San Francisco headquarters was originally scheduled to 
expire in 2023, and in June 2021, we amended the lease to extend it through 2028. We also lease approximately 67,000 square feet of office and 
manufacturing space in Beijing, China, and multiple office spaces in Beijing and Shanghai, China. Our leases in China expire in 2026. We have constructed 
a commercial manufacturing facility of approximately 5,500 square meters in Cangzhou, China, on approximately 33,000 square meters of land. Our right 
to use such land expires in 2068. We believe our facilities are adequate for our current needs and that suitable additional or substitute space would be 
available if needed. 

AVAILABLE INFORMATION

Our internet website address is www.fibrogen.com. In addition to the information about us and our subsidiaries contained in this Annual Report, 
information about us can be found on our website. The information contained on, or that can be accessed through, our website is not part of, and is not 
incorporated into, this Annual Report.

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished 
pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge through our website as soon as 
reasonably practicable after they are electronically filed with or furnished to the Securities and Exchange Commission. Additionally the Securities and 
Exchange Commission maintains an internet site that contains reports, proxy and information statements and other information. The address of the SEC’s 
website is www.sec.gov.

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CORPORATE INFORMATION

Our headquarters are located at 409 Illinois Street, San Francisco, California 94158 and our telephone number is (415) 978-1200. Our website address is 
www.FibroGen.com. 

Our subsidiaries consist of the following: 1) FibroGen Europe Oy, a majority owned entity incorporated in Finland in 1996; 2) Skin Sciences, Inc., a 
majority owned entity incorporated in the State of Delaware in 1995; 3) FibroGen International (Cayman) Limited, a majority owned entity incorporated in 
the Cayman Islands in 2011; 4) FibroGen China Anemia Holdings Ltd., a majority owned entity incorporated in the Cayman Islands in 2012; 5) FibroGen 
International (Hong Kong) Limited, a majority owned entity incorporated in Hong Kong in 2011; 6) FibroGen INTL LLC, a majority owned entity 
incorporated in the State of Delaware in 2021; 7) FibroGen (China) Medical Technology Development Co., Ltd., a majority owned entity incorporated in 
China in 2011; and 8) Beijing Falikang Pharmaceutical Co. Ltd., an unconsolidated variable interest entity incorporated in China in 2020.

“FibroGen,” the FibroGen logo and other trademarks or service marks of FibroGen, Inc. appearing in this Annual Report are the property of FibroGen, Inc. 
This Annual Report contains additional trade names, trademarks and service marks of others, which are the property of their respective owners. We do not 
intend our use of display of other companies’ trade names, trademarks or service marks to imply a relationship with, or endorsement or sponsorship of us 
by, these other companies.

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ITEM 1A. RISK FACTORS 

Investing in our common stock involves a high degree of risk. You should carefully consider the risks described below in addition to the other information 
included or incorporated by reference in this Annual Report on Form 10-K for the year ended December 31, 2022 (“Annual Report”), including our 
consolidated financial statements and the related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” 
before deciding whether to invest in our common stock. The occurrence of any of the events or developments described below could harm our business, 
financial condition, results of operations and growth prospects. In such an event, the market price of our common stock could decline, and you may lose all 
or part of your investment. Although we have discussed all known material risks, the risks described below are not the only ones that we may face. 
Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations.

Risks Related to the Development and Commercialization of Our Product Candidates

We are substantially dependent on the success of our lead products pamrevlumab and roxadustat. 

To date, we have invested a substantial portion of our efforts and financial resources in the research and development of pamrevlumab and roxadustat. 

Our near-term success depends in large part on pamrevlumab, which is in clinical development for idiopathic pulmonary fibrosis (“IPF”), locally advanced 
unresectable pancreatic cancer (“LAPC”), metastatic pancreatic cancer, and Duchenne muscular dystrophy (“DMD”). Pamrevlumab requires substantial 
further development and commercialization investments, and, at this time, we do not have a collaboration partner to support this compound. In addition, 
pamrevlumab is a monoclonal antibody, which may require greater financial resources than for our small molecule, roxadustat.

Our near-term prospects also depend in large part on our continued development and commercialization of roxadustat in the People’s Republic of China 
(“China”), Japan, Europe, the United States (“U.S.”), and elsewhere. Roxadustat has been approved in the European Union, Great Britain, China, Japan, 
and other countries for the treatment of anemia in chronic kidney disease (“CKD”) for patients who are on dialysis and not on dialysis. However, we 
received a complete response letter (“CRL”) for roxadustat in CKD anemia in the U.S. from the Food and Drug Administration (“FDA”). While we 
continue to co-commercialize roxadustat in China with AstraZeneca AB (“AstraZeneca”) and develop roxadustat in the U.S. for the treatment of anemia in 
patients with myelodysplastic syndromes (“MDS”), we have not been able to agree on a path forward for AstraZeneca to fund further roxadustat 
development in the U.S. for CKD anemia and there is a significant risk we will be unable to do so. There is also a significant risk that the U.S./RoW 
Agreement, a collaboration agreement we entered into with AstraZeneca for roxadustat for the treatment of anemia in the U.S. and all territories not 
previously licensed to Astellas, except China (“AstraZeneca U.S./RoW Agreement”), will be amended or terminated.

With an eye toward our longer-term success, we are investing in new drug programs to expand our early-stage clinical pipeline. While we see great 
potential value in our early-stage pipeline, these programs are years away from commercialization, and the success of any development program is not 
guaranteed. Our near-term prospects and the price of our common stock most heavily rely on the success of our lead products pamrevlumab and roxadustat.

As a company, we have limited late-stage and commercialization experience, and the time and resources required to develop such experience are 
significant.

We are running multiple Phase 3 clinical trials simultaneously with multiple readouts in 2023 and 2024, while also commercializing roxadustat with our 
collaboration partners. As a Company, we have limited resources and limited experience handling such a large number of data readouts and possible 
regulatory filings.  

For pamrevlumab, which we have not partnered, we do not have a sales infrastructure and we have limited experience in the sales, marketing or distribution 
of pharmaceutical products in any country.

To the extent that we would undertake sales and marketing of any of our products directly, there are risks involved with establishing our own sales, 
marketing and distribution capabilities. Factors that may inhibit our efforts to commercialize our products on our own include: 

•

•

our inability to recruit, train and retain adequate numbers of effective sales and marketing personnel; 

the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe any future products; 

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•

•

•

our inability to effectively manage geographically dispersed commercial teams; 

the lack of complementary products to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies with 
more extensive product lines; and 

unforeseen costs and expenses associated with creating an independent commercial organization.

With respect to roxadustat, we are dependent in part on the commercialization capabilities of our collaboration partners, AstraZeneca and Astellas Pharma 
Inc. (“Astellas”). If either such partner were to terminate its agreement with us, we would have to commercialize on our own or with another third party. 
We will have limited control over the commercialization efforts of such third parties, and any of them may fail to devote the necessary resources and 
attention to sell and market roxadustat effectively.

Successful development and commercialization of any of our products requires us to establish and further develop our clinical, regulatory, and 
commercialization capabilities, including but not limited to, medical affairs, marketing, product reimbursement, sales, price reporting, pharmacovigilance, 
supply-chain, and distribution. These efforts require resources and time to either develop or acquire expertise in these areas and there is a risk that we are 
unsuccessful or we fail to comply with rules or regulations applicable to development or commercialization of our products. There is also a risk that we are 
delayed due to the need to develop these capabilities or due to a lack of resources. All of which would adversely affect our business and financial condition.

Drug development and obtaining marketing authorization is a very difficult endeavor and we may ultimately be unable to obtain regulatory approval 
for our various product candidates in one or more jurisdictions and in one or more indications.

The development, manufacturing, marketing, and selling of our products and product candidates are and will continue to be subject to extensive and 
rigorous review and regulation by numerous government authorities in the U.S. and in other countries where we intend to develop and, if approved, market 
any product candidates. Before obtaining regulatory approval for the commercial sale of any product candidate, we must demonstrate through extensive 
preclinical trials and clinical trials that the product candidate is safe and effective for use in each indication for which approval is sought. The drug 
development and approval processes are expensive and require substantial resources and time, and in general, very few product candidates that enter 
development ultimately receive regulatory approval. In addition, our collaboration partners for roxadustat have final control over development decisions in 
their respective territories and they may make decisions with respect to development or regulatory authorities that delay or limit the potential approval of 
roxadustat, or increase the cost of development or commercialization. Accordingly, we may be unable to successfully develop or commercialize any of our 
other product candidates in one or more indications and jurisdictions.

Moreover, for any clinical trial to support a New Drug Application (“NDA”)/Biologics License Application submission for approval, the FDA and foreign 
regulatory authorities require compliance with regulations and standards (including good clinical practices (“GCP”) requirements for designing, 
conducting, monitoring, recording, analyzing, and reporting the results of clinical trials) to ensure that (1) the data and results from trials are credible and 
accurate; and (2) that the rights, integrity and confidentiality of trial participants are protected. Although we rely on third parties to conduct our clinical 
trials, we as the sponsor remain responsible for ensuring that each of these clinical trials is conducted in accordance with its general investigational plan 
and protocol under legal and regulatory requirements, including GCP.

Regulatory authorities may take actions or impose requirements that delay, limit or deny approval of our product candidates for many reasons, including, 
among others:

•

•

•

•

•

our failure to adequately demonstrate to the satisfaction of regulatory authorities or an independent advisory committee that our product candidate is 
safe and effective in a particular indication, or that such product candidate’s clinical and other benefits outweigh its safety risks;

our failure of clinical trials to meet the level of statistical significance required for approval;

the determination by regulatory authorities that additional clinical trials are necessary to demonstrate the safety and efficacy of a product candidate, 

disagreement over the design or implementation of our clinical trials;

our product candidates may exhibit an unacceptable safety signal at any stage of development;

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•

•

•

•

•

we, or the clinical research organizations (“CROs”) or investigators that conduct clinical trials on our behalf, may fail to comply with regulations or 
GCPs, clinical trial protocols, or contractual agreements, which may adversely impact our clinical trials;

disagreement over whether to accept results from clinical trial sites in a country where the standard of care is potentially different from that in the 
U.S.;

we or third-party contractors manufacturing our product candidates may not maintain current good manufacturing practices (“cGMP”), successfully 
pass inspection or meet other applicable manufacturing regulatory requirements;

regulatory authorities may require us to exclude the use of patient data from unreliable clinical trials, or may not agree with our interpretation of the 
data from our preclinical trials and clinical trials; or

collaboration partners may not perform or complete their clinical programs in a timely manner, or at all.

Any of these factors, many of which are beyond our control, could jeopardize our or our collaboration partners’ abilities to obtain regulatory approval for 
our product candidates in one or more indications. 

The FDA or other regulatory authorities may require more information (including additional preclinical or clinical data to support approval), which may 
delay or prevent approval or cause us to abandon the development program altogether. 

Even if we believe our clinical trials are successful, regulatory authorities may not agree that our completed clinical trials provide adequate data on safety 
or efficacy. Approval by one regulatory authority does not ensure approval by any other regulatory authority. For example, while we have received 
approval of our marketing authorization applications for roxadustat in the European Union, Great Britain, China, Japan, and other countries for the 
treatment of anemia in CKD for patients who are on dialysis and not on dialysis, we received a CRL in CKD anemia in the U.S. from the FDA regarding 
roxadustat’s NDA for the treatment of anemia due to CKD, stating that it could not be approved in its present form. In addition, a failure or delay in 
obtaining regulatory approval in one country may have a negative effect on the regulatory process or commercial uptake in other countries. 

Even if we do obtain regulatory approval, our product candidates may be approved for fewer or more limited indications than we request, approval may be 
contingent on the performance of costly post-marketing clinical trials, or approval may require labeling that does not include the labeling claims necessary 
or desirable for the successful commercialization of that product candidate. In addition, if our product candidates produce undesirable side effects or safety 
issues, the FDA may require the establishment of Risk Evaluation and Mitigation Strategy (or other regulatory authorities may require the establishment of 
a similar strategy), that may restrict distribution of our approved products, if any, and impose burdensome implementation requirements on us.

Any of the foregoing scenarios could materially harm the commercial prospects for our product candidates.

The CRL we received from the FDA for roxadustat has decreased the likelihood of approval and successful commercialization of roxadustat in the U.S. 
and potentially other markets. There is a significant risk that our U.S./Rest of World Collaboration Agreement with AstraZeneca will be amended or 
terminated. 

In August 2021, the FDA issued a CRL regarding roxadustat’s NDA for the treatment of anemia due to CKD in adult patients, stating that it could not be 
approved in its present form. The CRL and the subsequent delay due to discussions with AstraZeneca have decreased the likelihood of approval and 
successful commercialization of roxadustat in the U.S. and therefore will decrease and/or delay expected revenue. While we continue to commercialize 
roxadustat in China with AstraZeneca, and develop roxadustat in the U.S. for the treatment of anemia in patients with MDS, we have not been able to agree 
on a path forward for AstraZeneca to fund further roxadustat development in the U.S. and there is a significant risk we will be unable to do so. There is also 
a significant risk that the AstraZeneca U.S./RoW Agreement will be amended or terminated. Any of these risks could have a material impact on our 
business, operating results, and financial condition.

40

 
Preclinical, Phase 1 and Phase 2 clinical trial results may not be indicative of the results that may be obtained in larger clinical trials.

Clinical development is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can occur at any time during the 
clinical trial process. Success in preclinical and early clinical trials, which are often highly variable and use small sample sizes, may not be predictive of 
similar results in humans or in larger, controlled clinical trials, and successful results from clinical trials in one indication may not be replicated in other 
indications.

Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in late-stage clinical trials after achieving positive 
results in early-stage development, and we may face similar setbacks.

We do not know whether our ongoing or planned clinical trials of roxadustat or pamrevlumab will need to be redesigned based on interim results or if 
we will be able to achieve sufficient patient enrollment or complete planned clinical trials on schedule. 

Clinical trials can be delayed, suspended, or terminated by us, by the relevant institutional review boards at the sites at which such trials are being 
conducted, or by the FDA or other regulatory authorities, for a variety of reasons or factors, including:

•

•

•

•

•

•

•

•

•

•

•

•

delay or failure to address any physician or patient safety concerns that arise during the course of the trial, including unforeseen safety issues or 
adverse side effects, or a principal investigator’s determination that a serious adverse event could be related to our product candidates;

delay or failure to obtain required regulatory or institutional review board approval or guidance;

delay or failure to reach timely agreement on acceptable terms with prospective CROs and clinical trial sites;

delay or failure to recruit, enroll and retain patients through the completion of the trial;

patient recruitment, enrollment, or retention, or clinical site initiation or retention problems associated with the Severe Acute Respiratory Syndrome 
Coronavirus 2 and the resulting Coronavirus Disease (“COVID-19”) pandemic;

patient recruitment, enrollment, or retention, clinical site initiation, or retention problems associated with civil unrest or military conflicts around the 
world;

delay or failure to maintain clinical sites in compliance with clinical trial protocols or to conduct the clinical trial in accordance with regulatory 
requirements or our clinical protocols;

delay or failure to initiate or add a sufficient number of clinical trial sites;

delay or failure to manufacture sufficient quantities of product candidate for use in clinical trials;

difficulty enrolling a sufficient number of patients to conduct our clinical trials as planned;

inspection of the clinical trial operations or trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold, warning 
letter, or other regulatory action; and

changes in laws or regulations.

In particular, identifying and qualifying patients to participate in clinical trials of our product candidates is critical to our success. The timing of our clinical 
trials depends on the rate at which we can recruit and enroll patients in testing our product candidates. Patients may be unwilling to participate in clinical 
trials of our product candidates for a variety of reasons, some of which may be beyond our control, including:

•

•

•

•

•

•

•

severity of the disease under investigation;

availability of alternative treatments;

size and nature of the patient population;

eligibility criteria for and design of the study in question;

perceived risks and benefits of the product candidate under study;

ability to enroll patients in clinical trials during the COVID-19 pandemic (particularly for IPF);

ongoing clinical trials of competitive agents;

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•

•

•

•

physicians’ and patients’ perceptions of the potential advantages of our product candidates being studied in relation to available therapies or other 
products under development;

our CRO’s and our trial sites’ efforts to facilitate timely enrollment in clinical trials;

patient referral practices of physicians; and

ability to monitor patients and collect patient data adequately during and after treatment.

Any delays in completing our clinical trials will increase the costs of the trial, delay the product candidate development and approval process and 
jeopardize our ability to commence marketing and generate revenues. Any of these occurrences may materially and adversely harm our business, 
operations, and prospects.

Our product candidates may cause or have attributed to them undesirable side effects or have other properties that delay or prevent their regulatory 
approval or limit their commercial potential.

Undesirable side effects caused by our product candidates or that may be identified as related to our product candidates by physician investigators 
conducting our clinical trials or even competing products in development that utilize a similar mechanism of action or act through a similar biological 
disease pathway could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could result in the delay or denial of regulatory 
approval by the FDA or other regulatory authorities and potential product liability claims. If we determine that there is a likely causal relationship between 
a serious adverse event and our product candidate, and such safety event is material or significant enough, it may result in:

•

•

•

•

our clinical trial development plan becoming longer and more expensive;

terminating some of our clinical trials for the product candidates or specific indications affected;

regulatory authorities increasing the data and information required to approve our product candidates and imposing other requirements; and

our collaboration partners terminating our existing agreements.

The occurrence of any or all of these events may cause the development of our product candidates to be delayed or terminated, which could materially and 
adversely affect our business and prospects.

Clinical trials of our product candidates may not uncover all possible adverse effects that patients may experience.

Clinical trials are conducted in representative samples of the potential patient population, which may have significant variability. Pamrevlumab is being 
studied in patient populations that are at high risk of death and adverse events, and even if unrelated to pamrevlumab, adverse safety findings in these trials 
may limit its further development or commercial potential. Clinical trials are by design based on a limited number of subjects and of limited duration for 
exposure to the product used to determine whether, on a potentially statistically significant basis, the planned safety and efficacy of any product candidate 
can be achieved. As with the results of any statistical sampling, we cannot be sure that all side effects of our product candidates may be uncovered, and it 
may be the case that only with a significantly larger number of patients exposed to the product candidate for a longer duration, that a more complete safety 
profile is identified. Further, even larger clinical trials may not identify rare serious adverse effects or the duration of such studies may not be sufficient to 
identify when those events may occur. There have been other products, including erythropoiesis stimulating agents (“ESAs”), for which safety concerns 
have been uncovered following approval by regulatory authorities. Such safety concerns have led to labeling changes or withdrawal of ESAs products from 
the market. While roxadustat is chemically unique from ESAs, it or any of our product candidates may be subject to known or unknown risks. Patients 
treated with our products, if approved, may experience adverse reactions and it is possible that the FDA or other regulatory authorities may ask for 
additional safety data as a condition of, or in connection with, our efforts to obtain approval of our product candidates. If safety problems occur or are 
identified after our product candidates reach the market, we may, or regulatory authorities may require us to amend the labeling of our products, recall our 
products or even withdraw approval for our products.

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If our manufacturers or we cannot properly manufacture the appropriate volume of product, we may experience delays in development, regulatory 
approval, launch or successful commercialization. 

Completion of our clinical trials and commercialization of our products require access to, or development of, facilities to manufacture and manage our 
product candidates at sufficient yields, quality and at commercial scale. Although we have entered into commercial supply agreements for roxadustat and 
pamrevlumab, we will need to enter into additional commercial supply agreements, including for backup or second source third-party manufacturers. We 
may not be able to enter into these agreements with satisfactory terms or on a timely manner. In addition, we may experience delays or technical problems 
associated with technology transfer of manufacturing processes to any new suppliers.

We have relatively limited experience manufacturing or managing third parties in manufacturing any of our product candidates in the volumes that are 
expected to be necessary to support large-scale clinical trials and sales. In addition, we have limited experience forecasting supply requirements or 
coordinating supply chain (including export and customs management) for launch or commercialization, which is a complex process involving our third-
party manufacturers and logistics providers, and for roxadustat, our collaboration partners. We may not be able to accurately forecast supplies for 
commercial launch or do so in a timely manner and our efforts to establish these manufacturing and supply chain management capabilities may not meet 
our requirements as to quantities, scale-up, yield, cost, potency or quality in compliance with cGMP, particularly if the marketing authorization or market 
uptake is more rapid than anticipated or we have an unanticipated surge in demand. 

We have a limited amount of roxadustat and pamrevlumab in storage, limited capacity reserved at our third-party manufacturers, and, even if we have or 
are able to put sufficient supply agreements in place for our development and commercialization plan, there are long lead times required to manufacture 
and scale-up the manufacture of additional supply, as well as for raw materials and components for manufacture of our products, as required for both late-
stage clinical trials, post-approval trials, and commercial supply. There is a general risk of delayed drug supply due to delays experienced by any third-party 
provider in the supply chain, including raw material and components suppliers, export and customs locations, and shipping companies. In addition, if we 
are not able to obtain regulatory approval of roxadustat in the U.S. in CKD anemia, we may have excess supply manufactured in anticipation of 
commercialization. Such roxadustat excess supply could be wasted, for example, if it expires prior to being used in other clinical trials or prior to being 
used in other territories where such roxadustat formulation is approved. If we are unable to forecast, order or manufacture sufficient quantities of roxadustat 
or pamrevlumab on a timely basis, it may delay our development, launch or commercialization in some or all indications we are currently pursuing. 
Insufficient supply could be a particular risk if we were to obtain regulatory approval of pamrevlumab in all indications being studied (IPF, LAPC, 
metastatic pancreatic cancer, and DMD). Any delay or interruption in the supply of our product candidates or products could have a material adverse effect 
on our business and operations.

Our commercial drug product and the product we use for clinical trials must be produced under applicable cGMP regulations. Failure to comply with these 
regulations by us or our third-party manufacturers may require us to recall commercial product or repeat clinical trials, which would impact sales revenue 
and/or delay the regulatory approval process. 

We or our partners may add or change manufacturers, change our manufacturing processes, or change packaging specifications to accommodate changes in 
regulations, manufacturing equipment or to account for different processes at new or second source suppliers. Changes made to roxadustat or pamrevlumab 
including, but not limited to, demonstration of comparability to regulatory approved/ in approval products and processes, additional clinical trials, delays in 
development or commercialization, earlier expiration dates, shorter shelf life, or specification failures, may materially impact our operations and potential 
profitability.

We, and even an experienced third-party manufacturer, may encounter difficulties in production. Difficulties may include:

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costs and challenges associated with scale-up and attaining sufficient manufacturing yields, in particular for biologic products such as pamrevlumab, 
which is a monoclonal antibody;

contracting with additional suppliers and validation/qualification of additional facilities to meet growing demand;

supply chain issues, including coordination of multiple contractors in our supply chain and securing necessary licenses (such as export licenses);

the timely availability and shelf life requirements of raw materials and supplies, including delays in availability due to the COVID-19 pandemic;

limited stability and product shelf life;

equipment maintenance issues or failure;

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•

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quality control and quality assurance issues;

shortages of qualified personnel and capital required to manufacture large quantities of product;

compliance with regulatory requirements that vary in each country where a product might be sold;

capacity or forecasting limitations and scheduling availability in contracted facilities;

natural disasters, such as pandemics, including the COVID-19 pandemic, floods, storms, earthquakes, tsunamis, and droughts, or accidents such as 
fire, that affect facilities, possibly limit or postpone production, and increase costs; and

failure to obtain license to proprietary starting materials.

Regulatory authorities will do their own benefit risk analysis and may reach a different conclusion than we or our partners have, and these regulatory 
authorities may base their approval decision on different analyses, data, and statistical methods than ours.

Even if we believe we have achieved positive clinical results, such as superiority or non-inferiority, in certain endpoints, populations or sub-populations, or 
using certain statistical methods of analysis, the FDA and European Medicines Agency (“EMA”) will each conduct their own benefit-risk analysis and may 
reach different conclusions, using different statistical methods, different endpoints or definitions thereof, or different patient populations or sub-
populations. Furthermore, while we may seek regulatory advice or agreement in key commercial markets prior to and after application for marketing 
authorization, regulatory authorities may change their approvability criteria based on the data, their internal analyses and external factors, including 
discussions with expert advisors. For example, while we have received approval of our marketing authorization applications for roxadustat in the European 
Union, Great Britain, China, Japan, and other countries for the treatment of anemia in CKD for patients who are on dialysis and not on dialysis, we 
received a CRL in CKD anemia in the U.S. from the FDA. Regulatory authorities may approve one of our product candidates for fewer or more limited 
indications than we request or may grant approval contingent on the performance of costly post-approval clinical trials. While we have and will present to 
regulatory authorities certain pre-specified and post hoc (not pre-specified) sub-populations, sub-group, and sensitivity analyses (for example, incident 
dialysis), multiple secondary endpoints, and multiple sets of stratification factors and analytical methods (such as long-term follow up analyses), including 
adjusted and censored data, regulatory authorities may reject these analyses, methods, or even parts of our trial design or certain data from our studies, the 
rationale for our pre-specified non-inferiority margins or other portions of our statistical analysis plans. In addition, even if we are able to provide positive 
data with respect to certain analyses, regulatory authorities may not include such claims on any approved labeling. The failure to obtain regulatory 
approval, or any label, population or other approval limitations in any jurisdiction, may significantly limit or delay our ability to generate revenues, and any 
failure to obtain such approval for all of the indications and labeling claims we deem desirable could reduce our potential revenue.

Even if we are able to obtain regulatory approval of our product candidates, the label we obtain may limit the indicated uses for which our product 
candidates may be marketed.

With respect to roxadustat, regulatory approvals obtained could limit the approved indicated uses for which roxadustat may be marketed. For example, our 
label approved in Japan, includes the following warning: “Serious thromboembolism such as cerebral infarction, myocardial infarction, and pulmonary 
embolism may occur, possibly resulting in death, during treatment with roxadustat.” Additionally, in the U.S., ESAs have been subject to significant safety 
warnings, including the boxed warnings on their labels. The safety concerns relating to ESAs may result in labeling for roxadustat containing similar 
warnings. Any label for roxadustat may contain other warnings or limit the market opportunity or approved indications for roxadustat. These warnings 
could include warnings against exceeding specified hemoglobin targets and other warnings that derive from the safety issues associated with ESAs, even if 
our Phase 3 clinical trials do not themselves raise safety concerns.

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We face substantial competition in the discovery, development and commercialization of product candidates. 

The development and commercialization of new pharmaceutical products is highly competitive. Our future success depends on our ability and/or the ability 
of our collaboration partners to achieve and maintain a competitive advantage with respect to the development and commercialization of our product 
candidates. Our objective is to discover, develop and commercialize new products with superior efficacy, convenience, tolerability, and safety. 

We expect that in many cases, the products that we commercialize will compete with existing marketed products of companies that have large, established 
commercial organizations. We face competition from generics that could enter the market after expiry of our patents. 

In addition, we will likely face competition from other companies developing products in the same diseases or indications in which we are developing or 
commercializing products. We will also face competition for patient recruitment, enrollment for clinical trials.

Refer to Item 1. “Business - Competition” in our Annual Report for a discussion of the specific companies that are on the market or in late-stage 
development with which we may compete. 

The success of any or all of these potential competitive products may negatively impact the development and potential for success of our products.

Moreover, many of our competitors have significantly greater resources than we do. Large pharmaceutical companies have extensive experience, greater 
scale, and efficiency, in clinical testing, obtaining regulatory approvals, recruiting patients, manufacturing pharmaceutical products, and commercialization. 
If our collaboration partners and we are not able to compete effectively against existing and potential competitors, our business and financial condition may 
be materially and adversely affected.

Our product candidates may not achieve adequate market acceptance among physicians, patients, healthcare payors, and others in the medical 
community necessary for commercial success.

Even if our product candidates receive regulatory approval, they may not gain adequate market acceptance among physicians, patients, healthcare payors, 
and others in the medical community. Demonstrating safety and efficacy of our product candidates and obtaining regulatory approvals will not guarantee 
future revenue. The degree of market acceptance of any of our approved product candidates will depend on several factors, including:

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•

the efficacy of the product candidate as demonstrated in clinical trials;

the safety profile and perceptions of safety of our product candidates relative to competitive products;

acceptance of the product candidate as a safe and effective treatment by healthcare providers and patients;

the clinical indications for which the product candidate is approved;

the potential and perceived advantages of the product candidate over alternative treatments, including any similar generic treatments;

the inclusion or exclusion of the product candidate from treatment guidelines established by various physician groups and the viewpoints of 
influential physicians with respect to the product candidate;

the cost of the product candidate relative to alternative treatments;

adequate pricing and reimbursement by third parties and government authorities as described below;

the relative convenience and ease of administration;

the frequency and severity of adverse events;

the effectiveness of sales and marketing efforts; and

any unfavorable publicity relating to the product candidate.

In addition, see the risk factor titled “Our product candidates may cause or have attributed to them undesirable side effects or have other properties that 
delay or prevent their regulatory approval or limit their commercial potential” above. If any product candidate is approved but does not achieve an adequate 
level of acceptance by such parties, we may not generate or derive sufficient revenue from that product candidate and may not become or remain profitable.

45

 
No or limited reimbursement or insurance coverage of our approved products, by third-party payors may render our products less attractive to patients 
and healthcare providers. 

Market acceptance and sales of any approved products will depend significantly on reimbursement or coverage of our products by government or third-
party payors and may be affected by existing and future healthcare reform measures or prices of related products for which the government or third-party 
reimbursement applies. Coverage and reimbursement by the government or a third-party payor may depend upon a number of factors, including the payor’s 
determination that use of a product is:

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a covered benefit under applicable health plan;

safe, effective and medically necessary;

appropriate for the specific patient;

cost-effective; and

neither experimental nor investigational.

Obtaining coverage and reimbursement approval for a product from a government or other third-party payor is a time consuming and costly process that 
could require us to provide supporting scientific, clinical and cost-effectiveness data for the use of our products to the payor, which we may not be able to 
provide. Furthermore, the reimbursement policies of governments and third-party payors may significantly change in a manner that renders our clinical data 
insufficient for adequate reimbursement or otherwise limits the successful marketing of our products. Even if we obtain coverage for our product 
candidates, the pricing may be subject to re-negotiations or third-party payors may not establish adequate reimbursement amounts, which may reduce the 
demand for, or the price of, our products. For example, our current National Reimbursement Drug List reimbursement pricing for China is effective for a 
standard two-year period (between January 1, 2022 to December 31, 2023), after which time we will have to renegotiate a new price for roxadustat.

Reference pricing is used by various Europe member states and parallel distribution, or arbitrage between low-priced and high-priced member states, can 
further reduce prices. In some countries, our partner or we may be required to conduct a clinical trial or other studies that compare the cost-effectiveness of 
our product candidates to other available products in order to obtain or maintain reimbursement or pricing approval. Publication of discounts by third-party 
payors or authorities may lead to further pressure on the prices or reimbursement levels within the country of publication and other countries. If 
reimbursement of our products is unavailable or limited in scope or amount, or if pricing is set at unacceptable levels, our partner or we may elect not to 
commercialize our products in such countries, and our business and financial condition could be adversely affected.

Risks Related to Our Reliance on Third Parties

If our collaborations were terminated or if Astellas or AstraZeneca were to prioritize other initiatives over their collaborations with us, our ability to 
successfully develop and commercialize our product candidates would suffer. 

We have entered into collaboration agreements with respect to the development and commercialization of our lead product candidate, roxadustat, with 
Astellas and AstraZeneca. These agreements provide for reimbursement of our development costs by our collaboration partners and also provide for 
commercialization of roxadustat throughout the major territories of the world.

Our agreements with Astellas and AstraZeneca provide each of them with the right to terminate their respective agreements with us, upon the occurrence of 
negative clinical results, delays in the development and commercialization of our product candidates or adverse regulatory requirements or guidance. In 
addition, each of those agreements provides our respective partners the right to terminate any of those agreements upon written notice for convenience. The 
termination of any of our collaboration agreements would require us to fund and perform the further development and commercialization of roxadustat in 
the affected territory, or pursue another collaboration, which we may be unable to do, either of which could have an adverse effect on our business and 
operations. Moreover, if Astellas or AstraZeneca, or any successor entity, were to determine that their collaborations with us are no longer a strategic 
priority, or if either of them or a successor were to reduce their level of commitment to their collaborations with us, our ability to develop and 
commercialize roxadustat could suffer. 

46

 
In 2021, we received a CRL for roxadustat for the treatment of anemia due to CKD in adult patients in the U.S. While we continue to co-commercialize 
roxadustat in China with AstraZeneca and develop roxadustat in the U.S. for the treatment of anemia in patients with MDS, we have not been able to agree 
on a potential path forward for AstraZeneca to fund further roxadustat development in the U.S. for CKD anemia and there is a significant risk we will be 
unable to do so. There is also a significant risk that the AstraZeneca U.S./RoW Agreement will be amended or terminated. Our collaborations are exclusive 
for roxadustat and preclude us from entering into additional collaboration agreements with other parties in those geographies and indications already 
licensed.

If we do not establish and maintain strategic collaborations related to our product candidates, we will bear all of the risk and costs related to the 
development and commercialization of any such product candidate, and we may need to seek additional financing, hire additional employees and otherwise 
develop expertise at significant cost. This in turn may negatively affect the development of our other product candidates as we direct resources to our most 
advanced product candidates.

Our collaboration partners also have certain rights to control decisions regarding the development and commercialization of our product candidates with 
respect to which they are providing funding. If we have a disagreement over strategy and activities with our collaboration partners, our plans for obtaining 
regulatory approval may be revised and negatively affect the anticipated timing and potential for success of our product candidates. Even if a product under 
a collaboration agreement receives regulatory approval, we will remain substantially dependent on the commercialization strategy and efforts of our 
collaboration partners, and our collaboration partners have limited or no experience in commercialization of an anemia drug. If our collaboration partners 
are unsuccessful in their commercialization efforts, our results will be negatively affected.

With respect to our collaboration agreements for roxadustat, there are additional complexities in that our collaboration partners, Astellas and AstraZeneca, 
and we must reach consensus on certain portions of our development programs and regulatory activities. In addition, there are aspects of commercial 
operations that require cooperation among the collaboration partners, including safety data reporting. Multi-party decision-making is complex and involves 
significant time and effort, and there can be no assurance that the parties will cooperate or reach consensus, or that one or both of our partners will not ask 
to proceed independently in some or all of their respective territories or functional areas of responsibility in which the applicable collaboration partner 
would otherwise be obligated to cooperate with us. Any disputes or lack of cooperation with us by either Astellas or AstraZeneca, or both, may negatively 
impact the timing or success of our regulatory approval applications.

We may conduct proprietary research programs in specific disease areas that are not covered by our collaboration agreements. Our pursuit of such 
opportunities could, however, result in conflicts with our collaboration partners in the event that any of our collaboration partners takes the position that our 
internal activities overlap with those areas that are exclusive to our collaboration agreements. Moreover, disagreements with our collaboration partners 
could develop over rights to our intellectual property, including the enforcement of those rights. In addition, our collaboration agreements may have 
provisions that give rise to disputes regarding the rights and obligations of the parties. Any conflict with our collaboration partners could lead to the 
termination of our collaboration agreements, delay collaborative activities, reduce our ability to renew agreements or obtain future collaboration 
agreements or result in litigation or arbitration and would negatively impact our relationship with existing collaboration partners, and could impact our 
commercial results.

Certain of our collaboration partners could also become our competitors in the future. If our collaboration partners develop competing products, fail to 
obtain necessary regulatory approvals, terminate their agreements with us prematurely or fail to devote sufficient resources to the development and 
commercialization of our product candidates, the development and commercialization of our product candidates and products could be delayed.

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If our preclinical and clinical trial contractors do not properly perform their agreed upon obligations, we may not be able to obtain or may be delayed 
in receiving regulatory approvals for our product candidates.

We rely heavily on university, hospital, dialysis centers and other institutions and third parties, including the principal investigators and their staff, to carry 
out our clinical trials in accordance with our clinical protocols and designs. We also rely on a number of third-party CROs to assist in undertaking, 
managing, monitoring and executing our ongoing clinical trials. We expect to continue to rely on CROs, clinical data management organizations, medical 
institutions and clinical investigators to conduct our development efforts in the future. We compete with many other companies for the resources of these 
third parties, and large pharmaceutical companies often have significantly more extensive agreements and relationships with such third-party providers, and 
such third-party providers may prioritize the requirements of such large pharmaceutical companies over ours. The third parties on whom we rely may 
terminate their engagements with us at any time, which may cause delay in the development and commercialization of our product candidates. If any such 
third party terminates its engagement with us or fails to perform as agreed, we may be required to enter into alternative arrangements, which would result in 
significant cost and delay to our product development program. Moreover, our agreements with such third parties generally do not provide assurances 
regarding employee turnover and availability, which may cause interruptions in the research on our product candidates by such third parties.

Despite our reliance on third parties for certain development and management activities, such as clinical trials, we, as the sponsor, remain responsible for 
ensuring that these activities are conducted in accordance with the FDA and foreign regulatory authorities’ investigational plans and protocols, including 
GCP requirements. Regulatory enforcement of GCP requirements can occur through periodic inspections of trial sponsors, principal investigators, and trial 
sites. 

To ensure the quality and accuracy of our data remains uncompromised and reliable, our third-party service providers must comply with applicable GCP 
requirements, regulations, protocols, and agreements. Failures to do so by such third-party partners, or needing to replace such third-party service 
providers, may delay, suspend or terminate development of our product candidates, result in exclusion of patient data from approval applications, or require 
additional clinical trials before approval of marketing applications. Such events may ultimately prevent regulatory approval for our product candidates on a 
timely basis, at a reasonable cost, or at all.

We currently rely, and expect to continue to rely, on third parties to conduct many aspects of our product manufacturing and distribution, and these 
third parties may terminate these agreements or not perform satisfactorily. 

We do not have operating manufacturing facilities at this time other than our roxadustat manufacturing facilities in China, and our current commercial 
manufacturing plants in China are not expected to satisfy the requirements necessary to support development and commercialization outside of China. 
Other than in and for China specifically, we do not expect to independently manufacture our products. We currently rely, and expect to continue to rely, on 
third parties to scale-up, manufacture and supply roxadustat and our other product candidates outside of China. We rely on third parties for distribution, 
including our collaboration partners and their vendors, except in China where we have established a jointly owned entity with AstraZeneca to manage most 
of the distribution in China. Risks arising from our reliance on third-party manufacturers include:

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reduced control and additional burdens of oversight as a result of using third-party manufacturers and distributors for all aspects of manufacturing 
activities, including regulatory compliance and quality control and quality assurance;

termination of manufacturing agreements, termination fees associated with such termination, or nonrenewal of manufacturing agreements with third 
parties may negatively impact our planned development and commercialization activities;

significant financial commitments we may be required to make with third-party manufacturers for early-stage clinical or pre-clinical programs that 
may fail to produce scientific results that would justify further development (without the ability to mitigate the manufacturing investments);

the possible misappropriation of our proprietary technology, including our trade secrets and know-how; and

disruptions to the operations of our third-party manufacturers, distributors or suppliers unrelated to our product, including the merger, acquisition, or 
bankruptcy of a manufacturer or supplier or a catastrophic event, including disruption resulting from the COVID-19 pandemic, affecting our 
manufacturers, distributors or suppliers.

Any of these events could lead to development delays or failure to obtain regulatory approval or affect our ability to successfully commercialize our 
product candidates. Some of these events could be the basis for action by the FDA or another regulatory authority, including injunction, recall, seizure or 
total or partial suspension of production.

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Considering we do not control our contract manufacturers’ facilities and operations used to manufacture our product candidates, but are still responsible for 
cGMP adherence, if our contract manufacturers cannot successfully manufacture material that conforms to our or our collaboration partners’ specifications, 
or the regulatory requirements, our development and commercialization plans and activities may be adversely affected. Although our longer-term 
agreements are expected to provide for requirements to meet our quantity and quality requirements (e.g., through audit rights) to manufacture our products 
candidates for clinical studies and commercial sale, we have limited or minimal direct control over the ability of our contract manufacturers to maintain 
adequate quality control, quality assurance and qualified personnel. If our contract manufacturers’ facilities do not pass inspection, are not approved or 
have their approvals withdrawn by regulatory authorities, we would need to identify and qualify alternative manufacturing facilities, which would 
significantly impact our ability to develop, obtain regulatory approval for or market our products, if approved. Moreover, any failure of our third-party 
manufacturers, to comply with applicable regulations could result in legal sanctions/penalties being imposed on us or adverse regulatory consequences, 
which would be expected to significantly and adversely affect our product supplies.

If any third-party manufacturers terminate their engagements with us or fail to perform as agreed, we may be required to identify, qualify, and contract with 
replacement manufacturers (including entering into technical transfer agreements to share know-how), which process may result in significant costs and 
delays to our development and commercialization programs.

We may experience delays or technical problems associated with technology transfer, scale-up, or validation of our biologics manufacturing. 

We have entered into an initial commercial supply agreement for the manufacture of pamrevlumab with Samsung Biologics Co., Ltd. (“Samsung”) and are 
transitioning our manufacturing of pamrevlumab from Boehringer Ingelheim to Samsung. However, we may experience delays or technical problems 
associated with: 

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technology transfer of the manufacturing process to Samsung; 

scale-up and production of cGMP batches;

analytical method validation and transfer to Samsung;

process validation, including process characterization and process performance qualification batches; and

set up and execution of appropriate stability studies. 

We have made certain manufacturing commitments to Samsung, and there is a contractual risk we will not require the quantities of pamrevlumab we have 
committed to, particularly if we cease some of our pamrevlumab clinical trials. In addition, our product candidates and any products that we may develop 
may compete with other product candidates and products for access and prioritization to manufacture. Certain third-party manufacturers may be 
contractually prohibited from manufacturing our product due to non-compete agreements with our competitors or a commitment to grant another party 
priority relative to our products. There are a limited number of third-party manufacturers that operate under cGMP and that might be capable of 
manufacturing to meet our requirements. Due to the limited number of third-party manufacturers with the contractual freedom, expertise, required 
regulatory approvals and facilities to manufacture our products on a commercial scale, identifying and qualifying a replacement third-party manufacturer 
would be expensive and time-consuming and may cause delay or interruptions in the production of our product candidates or products, which in turn may 
delay, prevent or impair our development and commercialization efforts. We also carry the risk that we may need to pay termination fees to Samsung or 
other manufacturers in the event that we have to manufacture lower volumes or not at all depending on the results of our clinical trials. In addition, third 
party manufacturers tend to change their upfront fees or postponement/cancelation fees over time or upon initiation of additional contracts, and this may 
lead to unanticipated financial loss for FibroGen.

We also carry the risk that if all three indications are successful, the commercial demand may exceed planned production supply at Samsung. In this event, 
it may be necessary to find third party manufacturers who have the capacity and capability to produce the required quantities of pamrevlumab. This may be 
subject to availability of such manufacturers since there are only a limited number of suppliers who have the larger scale bioreactors that are needed for 
commercial pamrevlumab supply. If we need to find a supplier in China, there may be additional delays in importing custom raw materials and 
supplements into China.

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Certain components of our products are acquired from single-source suppliers or without long-term supply agreements. The loss of these suppliers, or 
their failure to supply, would materially and adversely affect our business. 

We do not have an alternative supplier of certain components of our commercial products and product candidates. While we have obligations for second-
source suppliers in our roxadustat collaboration agreements, we may be unable to enter into long-term commercial supply arrangements for some of our 
other products, or do so on commercially reasonable terms, which could have a material adverse impact upon our business. Although we have entered into 
long-term clinical and commercial supply arrangements for pamrevlumab, we currently rely on our contract manufacturers to purchase from third-party 
suppliers some of the materials necessary to produce our product candidates. We do not have direct control over the acquisition of those materials by our 
contract manufacturers.

The logistics of our supply chain, which include shipment of materials and intermediates from countries such as China and India add additional time and 
risk (including risk of loss) to the manufacture of our product candidates. While we have in the past maintained sufficient inventory of materials, active 
pharmaceutical ingredients (“API”), and drug product to meet our and our collaboration partners’ needs to date, the lead-time and regulatory approvals 
required to source from and into countries outside of the U.S. increase the risk of delay and potential shortages of supply.

Risks Related to Our Intellectual Property

If our efforts to protect our proprietary technologies are not adequate, we may not be able to compete effectively in our market.

We rely upon a combination of patents, trade secret protection, and contractual arrangements to protect the intellectual property related to our technologies. 
We will only be able to protect our products and proprietary information and technology to the extent that our patents, trade secrets, contractual position, 
and governmental regulations and laws allow us to do so. Any unauthorized use or disclosure of proprietary information or technology could compromise 
our competitive position. Moreover, we are, have been, and may in the future be involved in legal proceedings involving our intellectual property and 
initiated by third parties, which proceedings can be associated with significant costs and commitment of management time and attention. 

We have in the past been involved, and may in the future be involved, in initiating legal or administrative proceedings involving the product candidates and 
intellectual property of our competitors. These proceedings can result in significant costs and commitment of management time and attention, and there can 
be no assurance that our efforts would be successful in preventing or limiting the ability of our competitors to market competing products.

Composition-of-matter patents are generally considered the strongest form of intellectual property protection for pharmaceutical products, as such, patents 
provide protection not limited to any one method of use. Method-of-use patents protect the use of a product for the specified method(s), and do not prevent 
a competitor from making and marketing a product that is identical to our product for an indication that is outside the scope of the patented method. We 
rely on a combination of these and other types of patents to protect our product candidates, and there can be no assurance that our intellectual property will 
create and sustain the competitive position of our product candidates.

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Biotechnology and pharmaceutical product patents involve highly complex legal and scientific questions and can be uncertain. Any patent applications we 
own or license may fail to result in granted or issued patents. Even if patents do successfully issue from our applications, third parties may challenge their 
validity or enforceability, which may result in such patents being narrowed, invalidated, or held unenforceable. Even if our patents and patent applications 
are not challenged by third parties, those patents and patent applications may not prevent others from designing around our claims and may not otherwise 
adequately protect our product candidates. If the breadth or strength of protection provided by the patents and patent applications we hold with respect to 
our product candidates is threatened, competitors with significantly greater resources could threaten our ability to commercialize our product candidates. 
Discoveries are generally published in the scientific literature well after their actual development, and patent applications in the U.S. and other countries are 
typically not published until 18 months after their filing, and in some cases are never published. Therefore, we cannot be certain that our licensors or we 
were the first to make the inventions claimed in our owned and licensed patents or patent applications, or that our licensors or we were the first to file for 
patent protection covering such inventions. Subject to meeting other requirements for patentability, for U.S. patent applications filed prior to March 16, 
2013, the first to invent the claimed invention is entitled to receive patent protection for that invention while, outside the U.S., the first to file a patent 
application encompassing the invention is entitled to patent protection for the invention. The U.S. moved to a “first to file” system under the Leahy-Smith 
America Invents Act, effective March 16, 2013. This system also includes procedures for challenging issued patents and pending patent applications, which 
creates additional uncertainty. We have, are, and may again become involved in, opposition or interference proceedings challenging our patents and patent 
applications, or the patents and patent applications of others, and the outcome of any such proceedings are highly uncertain. An unfavorable outcome in any
such proceedings could reduce the scope of or invalidate our patent rights, allow third parties to commercialize our technology and compete directly with 
us, or result in our inability to manufacture, develop or commercialize our product candidates without infringing the patent rights of others.

In addition to the protection afforded by patents, we seek to rely on trade secret protection and confidentiality agreements to protect proprietary know-how, 
information, or technology that is not covered by our patents. Although our agreements require employees to acknowledge ownership by us of inventions 
conceived as a result of employment from the point of conception and, to the extent necessary, perfect such ownership by assignment, and we require 
employees, consultants, advisors and third parties who have access to our trade secrets, proprietary know-how and other confidential information and 
technology to enter into appropriate confidentiality agreements, we cannot be certain that our trade secrets, proprietary know-how and other confidential 
information and technology will not be subject to unauthorized disclosure, use, or misappropriation or that our competitors will not otherwise gain access 
to or independently develop substantially equivalent trade secrets, proprietary know-how and other information and technology. Furthermore, the laws of 
some foreign countries, in particular, China, where we have operations, do not protect proprietary rights to the same extent or in the same manner as the 
laws of the U.S. As a result, we may encounter significant problems in protecting and defending our intellectual property globally. If we cannot prevent 
unauthorized disclosure of our intellectual property related to our product candidates and technology to third parties, we may not establish or maintain a 
competitive advantage in our market, which could materially and adversely affect our business and operations.

Intellectual property disputes may be costly, time consuming, and may negatively affect our competitive position. 

Our commercial success may depend on our avoiding infringement of the patents and other proprietary rights of third parties as well as on enforcing our 
patents and other proprietary rights against third parties.

Our collaboration partners or we may be subject to patent infringement claims from third parties. We attempt to ensure that our product candidates do not 
infringe third-party patents and other proprietary rights. However, the patent landscape in competitive product areas is highly complex, and there may be 
patents of third parties of which we are unaware that may result in claims of infringement. Accordingly, there can be no assurance that our product 
candidates do not infringe proprietary rights of third parties, and parties making claims against us may seek and obtain injunctive or other equitable relief, 
which could potentially block further efforts to develop and commercialize our product candidates, including roxadustat or pamrevlumab. Any litigation 
involving defense against claims of infringement, regardless of the merit of such claims, would involve substantial litigation expense and would be a 
substantial diversion of management time.

We may consider administrative proceedings and other means for challenging third-party patents and patent applications. An unfavorable outcome in any 
such challenge could require us to cease using the related technology and to attempt to license rights to it from the prevailing third party, which may not be 
available on commercially reasonable terms, if at all, in which case our business could be harmed.

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Third parties have challenged and may again challenge our patents and patent applications. For example, various challenges against our HIF anemia-related 
technologies patent portfolio are ongoing in several territories, including Europe, the United Kingdom, and Japan. Regardless of final outcome, the 
potential narrowing or revocation of any of the HIF anemia-related technology patents does not affect our exclusivity for roxadustat or our freedom-to-
operate with respect to use of roxadustat for the treatment of anemia in these or other territories. 

Oppositions were filed against European Patent No. 2872488 (the “`488 Patent”), which claims a crystalline form of roxadustat, and against European 
Patent No. 3003284 (the “`284 Patent”), which claims photostable formulations of roxadustat. Similar challenges have been filed in China against patents 
which claim a crystalline form of roxadustat. Final resolution of such proceedings will take time, and we cannot be assured that these patents will 
ultimately survive as originally granted or at all.

Furthermore, there is a risk that any public announcements concerning the status or outcomes of intellectual property litigation or administrative 
proceedings may adversely affect the price of our stock. If securities analysts or our investors interpret such status or outcomes as negative or otherwise 
creating uncertainty, our common stock price may be adversely affected.

Our reliance on third parties and agreements with collaboration partners requires us to share our trade secrets, which increases the possibility that a 
competitor may discover them or that our trade secrets will be misappropriated or disclosed.

Our reliance on third-party contractors to develop and manufacture our product candidates is based upon agreements that limit the rights of the third parties 
to use or disclose our confidential information, including our trade secrets and know-how. Despite the contractual provisions, the need to share trade secrets 
and other confidential information increases the risk that such trade secrets and information are disclosed or used, even if unintentionally, in violation of 
these agreements. In the highly competitive markets in which our product candidates are expected to compete, protecting our trade secrets, including our 
strategies for addressing competing products, is imperative, and any unauthorized use or disclosure could impair our competitive position and may have a 
material adverse effect on our business and operations.

In addition, our collaboration partners are larger, more complex organizations than ours, and the risk of inadvertent disclosure of our proprietary 
information may be increased despite their internal procedures and contractual obligations that we have in place with them. Despite our efforts to protect 
our trade secrets and other confidential information, a competitor’s discovery of such trade secrets and information could impair our competitive position 
and have an adverse impact on our business.

The cost of maintaining our patent protection is high and requires continuous review and diligence. We may not be able to effectively maintain our 
intellectual property position throughout the major markets of the world.

The U.S. Patent and Trademark Office and foreign patent authorities require maintenance fees and payments as well as continued compliance with a 
number of procedural and documentary requirements. Noncompliance may result in abandonment or lapse of the subject patent or patent application, 
resulting in partial or complete loss of patent rights in the relevant jurisdiction. Non-compliance may result in reduced royalty payments for lack of patent 
coverage in a particular jurisdiction from our collaboration partners or may result in competition, either of which could have a material adverse effect on 
our business.

We have made, and will continue to make, certain strategic decisions in balancing costs and the potential protection afforded by the patent laws of certain 
countries. As a result, we may not be able to prevent third parties from practicing our inventions in all countries throughout the world, or from selling or 
importing products made using our inventions in and into the U.S. or other countries. Third parties may use our technologies in territories in which we have 
not obtained patent protection to develop their own products and, further, may infringe our patents in territories which provide inadequate enforcement 
mechanisms, even if we have patent protection. Such third-party products may compete with our product candidates, and our patents or other intellectual 
property rights may not be effective or sufficient to prevent them from competing.

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The laws of some foreign countries do not protect proprietary rights to the same extent as do the laws of the U.S., and we may encounter significant 
problems in securing and defending our intellectual property rights outside the U.S. 

Many companies have encountered significant problems in protecting and defending intellectual property rights in certain countries. The legal systems of 
certain countries do not always favor the enforcement of patents, trade secrets, and other intellectual property rights, particularly those relating to 
pharmaceutical and biotechnology products, which could make it difficult for us to stop infringement of our patents, misappropriation of our trade secrets, 
or marketing of competing products in violation of our proprietary rights. In China, our intended establishment of significant operations will depend in 
substantial part on our ability to effectively enforce our intellectual property rights in that country. Proceedings to enforce our intellectual property rights in 
foreign countries could result in substantial costs and divert our efforts and attention from other aspects of our business, and could put our patents in these 
territories at risk of being invalidated or interpreted narrowly, or our patent applications at risk of not being granted, and could provoke third parties to 
assert claims against us. We may not prevail in all legal or other proceedings that we may initiate and, if we were to prevail, 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.

Intellectual property rights do not address all potential threats to any competitive advantage we may have.

The degree of future protection afforded by our intellectual property rights is uncertain because intellectual property rights have limitations, and intellectual 
property rights 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 or independently develop similar or alternative technologies that are the same as or similar to our current or 
future product candidates but that are not covered by the claims of the patents that we own or have exclusively licensed.

Patent protection on our product candidates may expire before we are able to develop and commercialize the product, or before we are able to 
recover our investment in the product.

Our competitors might conduct research and development activities in the U.S. and other countries that provide a safe harbor from patent 
infringement claims for such activities, as well as in countries in which we do not have patent rights, and may then use the information learned from 
such activities to develop competitive products for sale in markets where we intend to market our product candidates.

The existence of counterfeit pharmaceutical products in pharmaceutical markets may compromise our brand and reputation and have a material 
adverse effect on our business, operations and prospects.

Counterfeit products, including counterfeit pharmaceutical products, are a significant problem, particularly in China. Counterfeit pharmaceuticals are 
products sold or used for research under the same or similar names, or similar mechanism of action or product class, but which are sold without proper 
licenses or approvals, and are often lower cost, lower quality, different potency, or have different ingredients or formulations, and have the potential to 
damage the reputation for quality and effectiveness of the genuine product. Such products may be used for indications or purposes that are not 
recommended or approved or for which there is no data or inadequate data with regard to safety or efficacy. Such products divert sales from genuine 
products. If counterfeit pharmaceuticals illegally sold or used for research result in adverse events or side effects to consumers, we may be associated with 
any negative publicity resulting from such incidents. Consumers may buy counterfeit pharmaceuticals that are in direct competition with our 
pharmaceuticals, which could have an adverse impact on our revenues, business and results of operations. In addition, the use of counterfeit products could 
be used in non-clinical or clinical studies, or could otherwise produce undesirable side effects or adverse events that may be attributed to our products as 
well, which could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could result in the delay or denial of regulatory approval by 
the FDA or other regulatory authorities and potential product liability claims. With respect to China, although the government has recently been 
increasingly active in policing counterfeit pharmaceuticals, there is not yet an effective counterfeit pharmaceutical regulation control and enforcement 
system in China. As a result, we may not be able to prevent third parties from selling or purporting to sell our products in China. The proliferation of 
counterfeit pharmaceuticals has grown in recent years and may continue to grow in the future. The existence of and any increase in the sales and production 
of counterfeit pharmaceuticals, or the technological capabilities of counterfeiters, could negatively impact our revenues, brand reputation, business and 
results of operations.

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Risks Related to Government Regulation

The regulatory approval process is highly uncertain and we may not obtain regulatory approval for our product candidates.

The time required to obtain approval by the FDA and comparable foreign regulatory authorities is unpredictable, but typically takes many years following 
the commencement of preclinical studies and clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory 
authorities. In addition, approval policies, regulations, or the type and amount of clinical data necessary to gain approval may change during the course of a 
product candidate’s clinical development and may vary among jurisdictions. For example, while we have received approval of our marketing authorization 
applications for roxadustat in the European Union, Great Britain, China, Japan, and other countries for the treatment of anemia in CKD for patients who are 
on dialysis and not on dialysis, we received a CRL for roxadustat in CKD anemia in the U.S. from the FDA. It is possible that roxadustat will not obtain 
regulatory approval in additional countries or indications. It is possible that our other product candidates we may discover, in-license or acquire and seek to 
develop in the future, will not obtain regulatory approval in any particular jurisdiction.

Our current and future relationships with customers, physicians, and third-party payors are subject to healthcare fraud and abuse laws, false claims 
laws, transparency laws, and other regulations. If we are unable to comply with such laws, we could face substantial penalties.

Our current and future relationships with customers, physicians, and third-party payors are subject to health care laws and regulations, which may constrain 
the business or financial arrangements and relationships through which we research, as well as, sell, market and distribute any products for which we obtain 
marketing approval. If we obtain approval in the U.S. for any of our product candidates, the regulatory requirements applicable to our operations, in 
particular our sales and marketing efforts, will increase significantly with respect to our operations and the potential for administrative, civil and criminal 
enforcement by the federal government and the states and foreign governments will increase with respect to the conduct of our business. The laws that may 
affect our operations in the U.S. include: the federal Anti-Kickback Statute; federal civil and criminal false claims laws and civil monetary penalty laws; 
the Health Insurance Portability and Accountability Act, including as amended by Health Information Technology for Economic and Clinical Health Act, 
and its implementing regulations; the federal physician sunshine requirements under the Patient Protection and Affordable Care Act, as amended by the 
Health Care and Education Reconciliation Act; and the Trade Agreement Act. In addition, foreign and state law equivalents of each of the above federal 
laws that may apply to items or services reimbursed by any third-party payor, including commercial insurers; state laws that require pharmaceutical 
companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the applicable compliance guidance promulgated by the 
federal government, or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws that require 
drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing 
expenditures; and state laws governing the privacy and security of health information in certain circumstances.

If our operations are found to be in violation of any of such laws or any other governmental regulations that apply to us, we may be subject to significant 
penalties, including administrative, civil and criminal penalties, damages, fines, disgorgement, the curtailment or restructuring of our operations, the 
exclusion from participation in federal and state healthcare programs and imprisonment, any of which could materially adversely affect our ability to 
operate our business and our financial results. 

Even if resolved in our favor, litigation or other legal proceedings relating to healthcare laws and regulations may cause us to incur significant expenses and 
could distract our technical and management personnel from their normal responsibilities. In addition, there could be public announcements of the results 
of hearings, motions or other interim proceedings or developments. Such actions could have a substantial adverse effect on the price of our common shares 
and could have a material adverse effect on our operations.

We are subject to stringent and evolving U.S. and foreign laws, regulations, rules, contractual obligations, policies and other obligations related to data 
privacy and security. Our actual or perceived failure to comply with such obligations could lead to regulatory investigations or actions; litigation; fines 
and penalties; disruptions of our business operations; reputational harm; loss of revenue or profits; and other adverse business consequences.

In the ordinary course of business, we collect, receive, store, process, generate, use, transfer, disclose, make accessible, protect, secure, dispose of, transmit, 
and share confidential, proprietary, and sensitive information, including personal information, business data, trade secrets, intellectual property, information 
we collect about trial participants in connection with clinical trials, sensitive third-party data, business plans, transactions, and financial information.

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Our data processing activities may subject us to numerous data privacy and security obligations, such as various laws, regulations, guidance, industry 
standards, external and internal privacy and security policies, contractual requirements, and other obligations relating to data privacy and security. 

In the United States, federal, state, and local governments have enacted numerous data privacy and security laws, including data breach notification laws, 
personal data privacy laws, consumer protection laws (e.g., Section 5 of the Federal Trade Commission Act), and other similar laws (e.g., wiretapping 
laws). For example, the California Consumer Privacy Act of 2018 (“CCPA”) applies to personal data of consumers, business representatives, and 
employees, and requires businesses to provide specific disclosures in privacy notices and honor requests of California residents to exercise certain privacy 
rights. The CCPA provides for civil penalties of up to $7,500 per violation and allows private litigants affected by certain data breaches to recover 
significant statutory damages. In addition, the California Privacy Rights Act of 2020 expands the CCPA’s requirements, including by adding a new right for 
individuals to correct their personal data and establishing a new regulatory agency to implement and enforce the law.

Other states, such as Virginia and Colorado, have also passed comprehensive data privacy and security laws, and similar laws are being considered in 
several other states, as well as at the federal and local levels. These developments may further complicate compliance efforts, and increase legal risk and 
compliance costs for us and the third parties upon whom we rely. 

Outside the U.S., an increasing number of laws, regulations, and industry standards may govern data privacy and security. For example, the European 
Union’s General Data Protection Regulation (“EU GDPR”), the United Kingdom’s GDPR (“UK GDPR”), Brazil’s General Data Protection Law (Lei Geral 
de Proteção de Dados Pessoais) (Law No. 13,709/2018), and China’s Personal Information Protection Law impose strict requirements for processing 
personal data, including health-related information. For example, under the EU GDPR, companies may face temporary or definitive bans on data 
processing and other corrective actions; fines of up to 20 million Euros or 4% of annual global revenue, whichever is greater; or private litigation related to 
processing of personal data brought by classes of data subjects or consumer protection organizations authorized at law to represent their interests. We also 
target customers in Asia and have operations in China and may be subject to new and emerging data privacy regimes in Asia, including China’s Personal 
Information Protection Law, Japan’s Act on the Protection of Personal Information, and Singapore’s Personal Data Protection Act.

In addition, we may be unable to transfer personal data from Europe and other jurisdictions to the U.S. or other countries due to data localization 
requirements or limitations on cross-border data flows. Europe and other jurisdictions have enacted laws requiring data to be localized or limiting the 
transfer of personal data to other countries. In particular, the European Economic Area (“EEA”) and the United Kingdom (“UK”) have significantly 
restricted the transfer of personal data to the U.S. and other countries whose data privacy and security laws they believe are inadequate. Other jurisdictions 
may adopt similarly stringent interpretations of their data localization and cross-border data transfer laws. Although there are currently various mechanisms 
that may be used to transfer personal data from the EEA and UK to the U.S. in compliance with law, such as the EEA and UK’s standard contractual 
clauses, these mechanisms are subject to legal challenges, and there is no assurance that we can satisfy or rely on these measures to lawfully transfer 
personal data to the U.S. If there is no lawful manner for us to transfer personal data from the EEA, the UK, or other jurisdictions to the U.S., or if the 
requirements for a legally-compliant transfer are too onerous, we could face significant adverse consequences, including the interruption or degradation of 
our operations, the need to relocate part of or all of our business or data processing activities to other jurisdictions at significant expense, increased 
exposure to regulatory actions, substantial fines and penalties, the inability to transfer data and work with partners, vendors and other third parties, and 
injunctions against our processing or transferring of personal data necessary to operate our business. Additionally, companies that transfer personal data out 
of the EEA and UK to other jurisdictions, particularly to the U.S., are subject to increased scrutiny from regulators, individual litigants, and activities 
groups. Some European regulators have ordered certain companies to suspend or permanently cease certain transfers of personal data out of Europe for 
allegedly violating the EU GDPR’s cross-border data transfer limitations.

In addition to data privacy and security laws, we are or may become contractually subject to industry standards adopted by industry groups and may 
become subject to such obligations in the future. We are also bound by other contractual obligations related to data privacy and security, and our efforts to 
comply with such obligations may not be successful.  

We publish privacy policies, marketing materials, and other statements, such as compliance with certain certifications or self-regulatory principles, 
regarding data privacy and security. If these policies, materials or statements are found to be deficient, lacking in transparency, deceptive, unfair, or 
misrepresentative of our practices, we may be subject to investigation, enforcement actions by regulators, or other adverse consequences. 

55

 
  
Obligations related to data privacy and security are quickly changing, becoming increasingly stringent, and creating regulatory uncertainty. Additionally, 
these obligations may be subject to differing applications and interpretations, which may be inconsistent or conflict among jurisdictions. Preparing for and 
complying with these obligations requires us to devote significant resources and may necessitate changes to our services, information technologies, 
systems, and practices and to those of any third parties that process personal data on our behalf. 

We may at times fail (or be perceived to have failed) in our efforts to comply with our data privacy and security obligations. Moreover, despite our efforts, 
our personnel or third parties on whom we rely may fail to comply with such obligations, which could negatively impact our business operations. If we or 
the third parties on which we rely fail, or are perceived to have failed, to address or comply with applicable data privacy and security obligations, we could 
face significant consequences, including but not limited to: government enforcement actions (e.g., investigations, fines, penalties, audits, inspections, and 
similar); litigation (including class-action claims); additional reporting requirements and/or oversight; bans on processing personal data; and orders to 
destroy or not use personal data. Any of these events could have a material adverse effect on our reputation, business, or financial condition, including but 
not limited to: loss of customers; inability to process personal data or to operate in certain jurisdictions; limited ability to develop or commercialize our 
products; expenditure of time and resources to defend any claim or inquiry; adverse publicity; or substantial changes to our business model or operations.  

We are subject to laws and regulations governing corruption, which require us to maintain costly compliance programs.

We must comply with a wide range of laws and regulations to prevent corruption, bribery, and other unethical business practices, including the U.S. 
Foreign Corrupt Practices Act (“FCPA”), anti-bribery and anti-corruption laws in other countries, particularly China. The implementation and maintenance 
of compliance programs is costly and such programs may be difficult to enforce, particularly where reliance on third parties is required.

Compliance with these anti-bribery laws is expensive and difficult, particularly in countries in which corruption is a recognized problem. In addition, the 
anti-bribery laws present particular challenges in the pharmaceutical industry because in many countries including China, hospitals are state-owned or 
operated by the government, and doctors and other hospital employees are considered foreign government officials. Furthermore, in certain countries 
(China in particular), hospitals and clinics are permitted to sell pharmaceuticals to their patients and are primary or significant distributors of 
pharmaceuticals. Certain payments to hospitals in connection with clinical studies, procurement of pharmaceuticals and other work have been deemed to be 
improper payments to government officials that have led to vigorous anti-bribery law enforcement actions and heavy fines in multiple jurisdictions, 
particularly in the U.S. and China.

It is not always possible to identify and deter violations, 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 be in 
compliance with such laws or regulations.

In the pharmaceutical industry, corrupt practices include, among others, acceptance of kickbacks, bribes or other illegal gains or benefits by the hospitals 
and medical practitioners from pharmaceutical manufacturers, distributors or their third-party agents in connection with the prescription of certain 
pharmaceuticals. If our employees, partners, affiliates, subcontractors, distributors or third-party marketing firms violate these laws or otherwise engage in 
illegal practices with respect to their sales or marketing of our products or other activities involving our products, we could be required to pay damages or 
heavy fines by multiple jurisdictions where we operate, which could materially and adversely affect our financial condition and results of operations. The 
Chinese government has also sponsored anti-corruption campaigns from time to time, which could have a chilling effect on any future marketing efforts by 
us to new hospital customers. There have been recent occurrences in which certain hospitals have denied access to sales representatives from 
pharmaceutical companies because the hospitals wanted to avoid the perception of corruption. If this attitude becomes widespread among our potential 
customers, our ability to promote our products to hospitals may be adversely affected.

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Considering our current presence and potential expansion in international jurisdictions, the creation, implementation, and maintenance of anti-corruption 
compliance programs is costly and such programs are difficult to enforce, particularly where reliance on third parties is required. Violation of the FCPA and 
other anti-corruption laws can result in significant administrative and criminal penalties for us and our employees, including substantial fines, suspension or 
debarment from government contracting, prison sentences, or even the death penalty in extremely serious cases in certain countries. The SEC also may 
suspend or bar us from trading securities on U.S. exchanges for violation of the FCPA’s accounting provisions. Even if we are not ultimately punished by 
government authorities, the costs of investigation and review, distraction of our personnel, legal defense costs, and harm to our reputation could be 
substantial and could limit our profitability or our ability to develop or commercialize our product candidates. In addition, if any of our competitors are not 
subject to the FCPA, they may engage in practices that will lead to their receipt of preferential treatment from foreign hospitals and enable them to secure 
business from foreign hospitals in ways that are unavailable to us.

If we fail to maintain an effective system of internal control, it may result in material misstatements in our financial statements. 

Our management is responsible for establishing and maintaining adequate internal control over financial reporting and for evaluating and reporting on the 
effectiveness of our system of internal control. 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 reporting purposes in accordance with generally accepted 
accounting principles. As a public company, we are required to comply with the Sarbanes-Oxley Act and other rules that govern public companies.

Remediation efforts required to remediate an ineffective system of control over financial reporting may place a significant burden on management and add 
increased pressure on our financial resources and processes. Moreover, we are implementing an enterprise resource planning (“ERP”) system in the first 
quarter of 2023, which will replace our existing operating and financial systems, to improve the efficiency of certain financial and transactional processes. 
This ERP system may place additional burdens on employees to learn and adapt our processes to effectively operate under the ERP system, and potential 
risks during such implementation. If the ERP system does not operate as intended, the effectiveness of our internal control over financial reporting could be 
negatively impacted. If we experience material weaknesses or otherwise fail to maintain an effective system of internal control over financial reporting, the 
accuracy and timing of our financial reporting and subsequently our liquidity and our access to capital markets may be adversely affected, we may be 
unable to maintain or regain compliance with applicable securities laws and the Nasdaq Stock Market LLC listing requirements, we may be subject to 
regulatory investigations and penalties, investors may lose confidence in our financial reporting, and our stock price may decline.

The impact of U.S. healthcare reform may adversely affect our business model. 

In the U.S. and some foreign jurisdictions, there have been, and continue to be, several legislative and regulatory changes and proposed changes regarding 
the healthcare system that could affect our operations. In particular, the commercial potential for our approved products could be affected by changes in 
healthcare spending and policy in the U.S. and abroad. We operate in a highly regulated industry and new laws, regulations or judicial decisions, or new 
interpretations of existing laws, regulations, or decisions, related to healthcare availability, the method of delivery or payment for healthcare products and 
services could negatively impact our business, operations and financial condition.

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Further, in the U.S. there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products, which 
has resulted in several presidential executive orders, 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 government payor programs, and review the relationship 
between pricing and manufacturer patient programs. For example, in July 2021, the Biden administration released an executive order that included multiple 
provisions aimed at prescription drugs. In response to Biden’s executive order, on September 9, 2021, the U.S. Department of Health and Human Services 
(“HHS”) released a Comprehensive Plan for Addressing High Drug Prices that outlines principles for drug pricing reform. The plan sets out a variety of 
potential legislative policies that Congress could pursue as well as potential administrative actions the HHS can take to advance these principles. In 
addition, on August 16, 2022, President Biden signed the Inflation Reduction Act of 2022 (“IRA”) into law, which among other things, extends enhanced 
subsidies for individuals purchasing health insurance coverage in Affordable Care Act marketplaces through plan year 2025. The IRA also eliminates the 
“donut hole” under the Medicare Part D program beginning in 2025 by significantly lowering the beneficiary maximum out-of-pocket cost and creating a 
new manufacturer discount program. Further, the IRA (1) directs HHS to negotiate the price of certain single-source drugs or biologics covered under 
Medicare, and (2) imposes rebates under Medicare Part B and Medicare Part D to penalize price increases that outpace inflation. These provisions will take 
effect progressively starting in fiscal year 2023, although they may be subject to legal challenges. It is currently unclear how the IRA of 2022 will be 
implemented but is likely to have a significant impact on the pharmaceutical industry. Further, the Biden administration released an additional executive 
order on October 14, 2022, directing U.S. Department of Health and Human Services to report on how the Center for Medicare and Medicaid Innovation 
can be further leveraged to test new models for lowering drug costs for Medicare and Medicaid beneficiaries. It is unclear whether this executive order or 
similar policy initiatives will be implemented in the future. At the state level, individual states are increasingly aggressive in passing legislation and 
implementing regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, 
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.

We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and 
state governments will pay for healthcare products and services, which could result in reduced demand for our products if approved or additional pricing 
pressures. 

Roxadustat is considered a Class 2 substance on the 2019 World Anti-Doping Agency Prohibited List that could limit sales and increase security and 
distribution costs for our partners and us. 

Roxadustat is considered a Class 2 substance on the World Anti-Doping Agency Prohibited List. There are enhanced security and distribution procedures 
we and our collaboration partners and third-party contractors will have to take to limit the risk of loss of product in the supply chain. As a result, our 
distribution, manufacturing and sales costs for roxadustat, as well as for our partners, will be increased which will reduce profitability. In addition, there is a 
risk of reduced sales due to patient access to this drug. 

Our employees may engage in misconduct or improper activities, which could result in significant liability or harm our reputation.

We are exposed to the risk of employee fraud or other misconduct, including intentional failure to: 

•

•

•

•

•

•

•

•

comply with FDA regulations or similar regulations of comparable foreign regulatory authorities; 

provide accurate information to the FDA or comparable foreign regulatory authorities; 

comply with manufacturing standards we have established; 

comply with data privacy and security laws protecting personal data;

comply with federal and state healthcare fraud and abuse laws and regulations and similar laws and regulations established and enforced by 
comparable foreign regulatory authorities; 

comply with the FCPA and other anti-bribery laws; 

report financial information or data accurately; or

disclose unauthorized activities to us.

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Employee misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory 
sanctions, delays in clinical trials, or serious harm to our reputation. We have adopted a code of conduct for our directors, officers and employees, but it is 
not always possible to identify and deter employee misconduct. The precautions we take to detect and prevent this activity may not be effective in 
protecting us from the negative impacts of governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such 
laws or regulations. An unfavorable outcome or settlement in connection with a governmental investigation or other action or lawsuit may result in a 
material adverse impact on our business, results of operations, financial condition, prospects, and stock price. Regardless of the outcome, litigation and 
governmental investigations can be costly, time-consuming, and disruptive to our business, results of operations, financial condition, reputation, and 
prospects.

If we fail to comply with environmental, health or safety laws and regulations, we could incur fines, penalties or other costs.

We 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 biological materials. Our operations also produce hazardous waste products. We 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 for failure to comply with such laws and regulations. We do not maintain insurance for environmental 
liability or toxic tort claims that may be asserted against us in connection with our storage or disposal of biological, hazardous or radioactive materials.

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations applicable to our 
operations in the U.S. and foreign countries. These current or future laws and regulations may impair our research, development or manufacturing efforts. 
Our failure to comply with these laws and regulations also may result in substantial fines, penalties or other sanctions.

Risks Related to Our International Operations

We have established operations in China and are seeking approval to commercialize our product candidates outside of the U.S., and a number of risks 
associated with international operations could materially and adversely affect our business. 

A number of risks related to our international operations, many of which may be beyond our control, include: different regulatory requirements in different 
countries, including for drug approvals, manufacturing, and distribution; potential liability resulting from development work conducted by foreign 
distributors; economic weakness, including inflation, or foreign currency fluctuations, which could result in increased operating costs and expenses and 
reduced revenues, and other obligations incident to doing business in another country; workforce uncertainty in countries where labor unrest is more 
common than in the U.S.; compliance with tax, employment, immigration and labor laws for employees living or traveling abroad; political instability in 
particular foreign economies and markets; and business interruptions resulting from geopolitical actions specific to an international region, including war 
and terrorism, or natural disasters, including the differing impact of the COVID-19 pandemic on each region.

The pharmaceutical industry in China is highly regulated and such regulations are subject to change. 

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. In recent years, many aspects of pharmaceutical industry regulation have undergone 
significant reform, and reform may continue. For example, the Chinese government implemented regulations that impact distribution of pharmaceutical 
products in China, where at most two invoices may be issued throughout the distribution chain, a change that required us to change our distribution 
paradigm. Any regulatory changes or amendments may result in increased compliance costs to our business or cause delays in or prevent the successful 
development or commercialization of our product candidates in China. 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.

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The China-operations portion of our audit is conducted by an independent registered public accounting firm that is not subject to inspection by the 
Public Company Accounting Oversight Board (“PCAOB”), which may negatively impact investor sentiment towards FibroGen or our China 
operations, which could adversely affect the market price of our common stock. 

The majority of audit work incurred for the audit report included in the 2021 Form 10-K was performed by the U.S.-based independent registered public 
accounting firm we have retained, PricewaterhouseCoopers LLP, which is headquartered in the U.S. and was not identified in the report issued by the 
PCAOB on December 16, 2021 as a firm that the PCAOB was unable to inspect.

However, we estimate that between 30% and 40% of the total audit hours for our December 31, 2022 audit were provided by PricewaterhouseCoopers 
Zhong Tian LLP, which is headquartered in China. PricewaterhouseCoopers Zhong Tian LLP was identified in the report issued by the PCAOB on 
December 16, 2021 as a firm the PCAOB was unable to inspect.

On December 18, 2020, the Holding Foreign Companies Accountable Act (the “HFCAA”) was signed into law. The HFCAA requires that the SEC identify 
issuers that retain an auditor that has a branch or office that is located in a foreign jurisdiction and that the PCAOB determines it is unable to inspect or 
investigate completely because of a position taken by an authority in that foreign jurisdiction. As PricewaterhouseCoopers Zhong Tian LLP is located in 
China, a jurisdiction where the PCAOB has been unable to conduct inspections without the approval of the Chinese authorities, they are not currently 
subject to inspection. Among other things, the HFCAA requires the SEC to prohibit the securities of any issuer from being traded on any of the U.S. 
national securities exchanges, such as The Nasdaq Global Select Market, or on the U.S. “over-the-counter” markets, if the auditor of the issuer’s financial 
statements is not subject to PCAOB inspections for three consecutive “non-inspection” years after the law became effective. 

On December 29, 2022, the Accelerating Holding Foreign Companies Accountable Act (the “AHFCAA”) was signed into law as part of a package of bills. 
The AHFCAA reduces the number of consecutive non-inspection years required for triggering the listing and trading prohibitions under the HFCA Act 
from three years to two years, thus reducing the time period before our securities may be prohibited from trading or delisted.

On December 16, 2021, the PCAOB issued a report on its determination that it is unable to inspect or investigate completely PCAOB-registered accounting 
firms headquartered in China and in Hong Kong. PricewaterhouseCoopers Zhong Tian LLP was named in this report. 

On December 2, 2021, the SEC adopted final amendments to its rules implementing the HFCAA and established procedures to identify issuers and prohibit 
the trading of the securities of certain registrants as required by the HFCAA. This rule stated that only the principal accountant, as defined by Rule 2-05 of 
Regulation S-X and PCAOB AS 1205, is “deemed ‘retained’ for purposes of Section 104(i) of the Sarbanes-Oxley Act and the Commission’s 
determination of whether the registrant should be a Commission Identified Issuer.” The principal accountant, as defined, that we have retained is 
PricewaterhouseCoopers LLP. The HFCAA does not apply to registrants that retain a principal accountant that is headquartered in the U.S. and subject to 
PCAOB inspection. Accordingly, the HFCAA does not currently apply to us. 

On December 15, 2022, the PCAOB announced that it was able to conduct inspections and investigations completely of PCAOB-registered public 
accounting firms headquartered in mainland China and Hong Kong in 2022. The PCAOB vacated its previous 2021 determinations accordingly. While 
vacating those determinations, the PCAOB noted that, should it encounter any impediment to conducting an inspection or investigation of auditors in 
mainland China or Hong Kong as a result of a position taken by any authority there, the PCAOB would act to immediately reconsider the need to issue new 
determinations consistent with the HFCAA and PCAOB’s Rule 6100.

If our operations fundamentally change in a way that requires our independent registered public accounting firm be located in China or Hong Kong in order 
to comply with the standards of the PCAOB regarding principal auditor then the HFCAA would apply to us, including the potential delisting from The 
Nasdaq Global Select Market and prohibition from trading in the over-the counter market in the U.S. Such a restriction would negatively impact our ability 
to raise capital. We view the likelihood to be remote that our operations will fundamentally change so as to require our principal auditor to be located in 
China or Hong Kong. Additionally, it is possible that in the future Congress could amend the HFCAA or the SEC could modify its regulations to apply the 
restrictions, including trading prohibitions and delisting, under the HFCAA in situations in which an independent registered public accounting firm in 
China or Hong Kong performs part of the audit such as in our current situation. There are currently no such proposals.

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Inspections of auditors conducted by the PCAOB in territories outside of China have at times identified deficiencies in those auditors’ audit procedures and 
quality control procedures, which may be addressed as part of the inspection process to improve future audit quality. The lack of PCAOB inspections of 
audit work undertaken in China prevents the PCAOB from evaluating the effectiveness of such audits and such auditors’ quality control procedures. The 
component of our audit that was performed by PricewaterhouseCoopers Zhong Tian LLP and the work papers associated with such audit work is not 
currently subject to inspection by the PCAOB. As a result, investors are deprived of the potential benefits of such PCAOB inspections for this portion of 
our audit, which could cause investors and potential investors in our common stock to lose confidence in the audit procedures conducted by our U.S. 
auditor’s China-based subsidiary, which may negatively impact investor sentiment towards us or our China operations, which in turn could adversely affect 
the market price of our common stock.

Changes in U.S. and China relations, as well as relations with other countries, and/or regulations may adversely impact our business. 

The U.S. government, including the SEC, has made statements and taken certain actions that have led to changes to U.S. and international relations, and 
will impact companies with connections to the U.S. or China, including imposing several rounds of tariffs affecting certain products manufactured in 
China, imposing certain sanctions and restrictions in relation to China, and issuing statements indicating enhanced review of companies with significant 
China-based operations. It is unknown whether and to what extent new legislation, executive orders, tariffs, laws or regulations will be adopted, or the 
effect that any such actions would have on companies with significant connections to the U.S. or to China, our industry or on us. We conduct 
manufacturing and development activities and have business operations both in the U.S. and China. Any unfavorable government policies on cross-border 
relations and/or international trade, including increased scrutiny on companies with significant China-based operations, capital controls or tariffs, may 
affect the competitive position of our drug products, the hiring of scientists and other research and development personnel, the demand for our drug 
products, the import or export of products and product components, our ability to raise capital, the market price of our common stock, or prevent us from 
commercializing and selling our drug products in certain countries. 

While we do not operate in an industry that is currently subject to foreign ownership limitations in China, China could decide to limit foreign ownership in 
our industry, in which case there could be a risk that we would be unable to do business in China as we are currently structured. In addition, our periodic 
reports and other filings with the SEC may be subject to enhanced review by the SEC and this additional scrutiny could affect our ability to effectively raise 
capital in the U.S. 

If any new legislation, executive orders, tariffs, laws and/or regulations are implemented, if existing trade agreements are renegotiated or if the U.S. or 
Chinese governments take retaliatory actions due to the recent U.S.-China tension, such changes could have an adverse effect on our business, financial 
condition and results of operations, our ability to raise capital and the market price of our common stock.

We use our own manufacturing facilities in China to produce roxadustat API and drug product for the market in China. There are risks inherent to 
operating commercial manufacturing facilities, and with these being our single source suppliers, we may not be able to continually meet market 
demand. 

We have two manufacturing facilities in China, with one located in Beijing and the other in Cangzhou, Hebei. 

We will be obligated to comply with continuing cGMP requirements and there can be no assurance that we will maintain all of the appropriate licenses 
required to manufacture our product candidates for clinical and commercial use in China. In addition, our product suppliers and we must continually spend 
time, money and effort in production, record-keeping and quality assurance and appropriate controls in order to ensure that any products manufactured in 
our facilities meet applicable specifications and other requirements for product safety, efficacy and quality and there can be no assurance that our efforts 
will continue to be successful in meeting these requirements.

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Manufacturing facilities in China are subject to periodic unannounced inspections by the National Medical Products Administration and other regulatory 
authorities. We expect to depend on these facilities for our product candidates and business operations in China, and we do not yet have a secondary source 
supplier for either roxadustat API or drug product in China. Consequently, we also carry single source supplier risk for the Ex-China market. Natural 
disasters or other unanticipated catastrophic events, including power interruptions, water shortages, storms, fires, pandemics (including the COVID-19 
pandemic), earthquakes, terrorist attacks, government appropriation of our facilities, and wars, could significantly impair our ability to operate our 
manufacturing facilities. Further, the climate of geopolitical tensions in China affecting global supply chains may impact our ability to continually meet 
market demand. Certain equipment, records and other materials located in these facilities would be difficult to replace or would require substantial 
replacement lead-time that would impact our ability to successfully commercialize our product candidates in China. The occurrence of any such event 
could materially and adversely affect our business, financial condition, results of operations, cash flows and prospects.

We may experience difficulties in successfully growing and sustaining sales of roxadustat in China.

AstraZeneca and we have a profit-sharing arrangement with respect to roxadustat in China and any difficulties we may experience in growing and 
sustaining sales will affect our bottom line. Difficulties may be related to our ability to maintain reasonable pricing and reimbursement, obtain and maintain 
hospital listing, or other difficulties related to distribution, marketing, and sales efforts in China. Our current National Reimbursement Drug List 
reimbursement pricing is effective for a standard two-year period (between January 1, 2022 to December 31, 2023), after which time we will have to 
negotiate a new price for roxadustat. Sales of roxadustat in China may ultimately be limited due to the complex nature of the healthcare system, low 
average personal income, pricing controls, still developing infrastructure and potentially rapid competition from other products. 

The retail prices of any product candidates that we develop will be subject to pricing control in China and elsewhere.

The price for pharmaceutical products is highly regulated in China, both at the national and provincial level. Price controls may reduce prices to levels 
significantly below those that would prevail in less regulated markets or limit the volume of products that may be sold, either of which may have a material 
and adverse effect on potential revenues from sales of roxadustat in China. Moreover, the process and timing for the implementation of price restrictions is 
unpredictable, which may cause potential revenues from the sales of roxadustat to fluctuate from period to period.

FibroGen (China) Medical Technology Development Co., Ltd. (“FibroGen Beijing”) would be subject to restrictions on paying dividends or making 
other payments to us, which may restrict our ability to satisfy our liquidity requirements.

We plan to conduct all of our business in China through FibroGen China Anemia Holdings, Ltd., FibroGen Beijing and its branch offices, and our joint 
venture distribution entity, Beijing Falikang Pharmaceutical Co., Ltd. (“Falikang”). We do not currently rely on revenue from China to fund our operations 
outside of China. However, we may in the future rely on dividends and royalties paid by FibroGen Beijing for a portion of our cash needs, including the 
funds necessary to service any debt we may incur and to pay our operating costs and expenses. The payment of dividends by FibroGen Beijing is subject to 
limitations. Regulations in China currently permit payment of dividends only out of accumulated profits as determined in accordance with applicable 
accounting standards and regulations in China. FibroGen Beijing is not permitted to distribute any profits until losses from prior fiscal years have been 
recouped and in any event must maintain certain minimum capital requirements. FibroGen Beijing is also required to set aside at least 10.0% of its after-tax 
profit based on Chinese accounting standards each year to its statutory reserve fund until the cumulative amount of such reserves reaches 50.0% of its 
registered capital. Statutory reserves are not distributable as cash dividends. In addition, if FibroGen Beijing incurs debt on its own behalf in the future, the 
agreements governing such debt may restrict its ability to pay dividends or make other distributions to us. As of December 31, 2022, approximately $71.2 
million of our cash and cash equivalents is held in China.

Any capital contributions from us to FibroGen Beijing must be approved by the Ministry of Commerce in China, and failure to obtain such approval 
may materially and adversely affect the liquidity position of FibroGen Beijing.

The Ministry of Commerce in China or its local counterpart must approve the amount and use of any capital contributions from us to FibroGen Beijing, and 
there can be no assurance that we will be able to complete the necessary government registrations and obtain the necessary government approvals on a 
timely basis, or at all. If we fail to do so, we may not be able to contribute additional capital or find suitable financing alternatives within China to fund our 
Chinese operations, and the liquidity and financial position of FibroGen Beijing may be materially and adversely affected.

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We may be subject to currency exchange rate fluctuations and currency exchange restrictions with respect to our operations in China as well as our 
partner’s operations in Japan and Europe, which could adversely affect our financial performance.

Most of our and our partner’s product sales will occur in local currency and our operating results will be subject to volatility from currency exchange rate 
fluctuations. To date, we have not hedged against the risks associated with fluctuations in exchange rates and, therefore, exchange rate fluctuations could 
have an adverse impact on our future operating results. Changes in the value of the Renminbi, Euro or Yen against the U.S. dollar and other currencies are 
affected by, among other things, changes in political and economic conditions. Any significant currency exchange rate fluctuations may have a material 
adverse effect on our business and financial condition.

In addition, the Chinese government imposes controls on the convertibility of the Renminbi into foreign currencies and the remittance of foreign currency 
out of China for certain transactions. Shortages in the availability of foreign currency may restrict the ability of FibroGen Beijing to remit sufficient foreign 
currency to pay dividends or other payments to us, or otherwise satisfy their foreign currency-denominated obligations. Under existing Chinese foreign 
exchange regulations, payments of current account items, including profit distributions, interest payments and balance of trade, can be made in foreign 
currencies without prior approval from the State Administration of Foreign Exchange by complying with certain procedural requirements. However, 
approval from the State Administration of Foreign Exchange or its local branch is required where Renminbi 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 Chinese government may also at its 
discretion restrict access in the future to foreign currencies for current account transactions. If the foreign exchange control system prevents us from 
obtaining sufficient foreign currency to satisfy our operational requirements, our liquidity and financial position may be materially and adversely affected.

Because FibroGen Beijing’s funds are held in banks that do not provide insurance, the failure of any bank in which FibroGen Beijing deposits its 
funds could adversely affect our business.

Banks and other financial institutions in China do not provide insurance for funds held on deposit. As a result, in the event of a bank failure, FibroGen 
Beijing may not have access to funds on deposit. Depending upon the amount of money FibroGen Beijing maintains in a bank that fails, its inability to 
have access to cash could materially impair its operations.

We may be subject to tax inefficiencies associated with our offshore corporate structure. 

The tax regulations of the U.S. and other jurisdictions in which we operate are extremely complex and subject to change. New laws, new interpretations of 
existing laws, such as the Base Erosion Profit Shifting project initiated by the Organization for Economic Co-operation and Development, and any 
legislation proposed by the relevant taxing authorities, or limitations on our ability to structure our operations and intercompany transactions may lead to 
inefficient tax treatment of our revenue, profits, royalties, and distributions, if any are achieved. For example, the Biden administration has proposed to 
increase the U.S. corporate income tax rate from 21%, increase the U.S. taxation of our international business operations and impose a global minimum tax, 
although the recently enacted Inflation Reduction Act of 2022 omitted to include any of these proposals but included only a minimum tax on certain large 
corporations and a tax on certain repurchases of stock on the corporations doing those repurchases. Such proposed changes, as well as regulations and legal 
decisions interpreting and applying these changes, may adversely impact our effective tax rate.

In addition, our foreign subsidiaries and we have various intercompany transactions. We may not be able to obtain certain benefits under relevant tax 
treaties to avoid double taxation on certain transactions among our subsidiaries. If we are not able to avail ourselves to the tax treaties, we could be subject 
to additional taxes, which could adversely affect our financial condition and results of operations.

On December 22, 2017, the Tax Cuts and Jobs Act (Tax Act) was enacted which instituted various changes to the taxation of multinational corporations. 
Since inception, various regulations and interpretations have been issued by governing authorities and we continue to examine the impacts to our business, 
which could potentially have a material adverse effect on our business, results of operations or financial conditions. 

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Our foreign operations, particularly those in China, are subject to significant risks involving the protection of intellectual property. 

We seek to protect the products and technology that we consider important to our business by pursuing patent applications in China and other countries, 
relying on trade secrets or pharmaceutical regulatory protection or employing a combination of these methods. We note that the filing of a patent 
application does not mean that we will be granted a patent, or that any patent eventually granted will be as broad as requested in the patent application or 
will be sufficient to protect our technology. There are a number of factors that could cause our patents, if granted, to become invalid or unenforceable or 
that could cause our patent applications not to be granted, including known or unknown prior art, deficiencies in the patent application, or lack of 
originality of the technology. Furthermore, the terms of our patents are limited. The patents we hold and the patents that may be granted from our currently 
pending patent applications have, absent any patent term adjustment or extension, a twenty-year protection period starting from the date of application.

Intellectual property rights and confidentiality protections in China may not be as effective as those in the U.S. or other countries for many reasons, 
including lack of procedural rules for discovery and evidence, low damage awards, and lack of judicial independence. Implementation and enforcement of 
China intellectual property laws have historically been deficient and ineffective and may be hampered by corruption and local protectionism. Policing 
unauthorized use of proprietary technology is difficult and expensive, and we may need to resort to litigation to enforce or defend patents issued to us or to 
determine the enforceability and validity of our proprietary rights or those of others. The experience and capabilities of China courts in handling intellectual 
property litigation varies and outcomes are unpredictable. An adverse determination in any such litigation could materially impair our intellectual property 
rights and may harm our business.

Uncertainties with respect to the China legal system and regulations could have a material adverse effect on us.

The legal system of China is a civil law system primarily based on written statutes. Our financial condition and results of operations may be adversely 
affected by government control, perceived government interference and/or changes in tax, cyber and data security, capital investments, cross-border 
transactions and other regulations that are currently or may in the future be applicable to us. In 2022, Chinese regulators announced regulatory actions 
aimed at providing China’s government with greater oversight over certain sectors of China’s economy, including the for-profit education sector and 
technology platforms that have a quantitatively significant number of users located in China. Although the biotech industry is already highly regulated in 
China and while there has been no indication to date that such actions or oversight would apply to companies that are similarly situated as us and that are 
pursuing similar portfolios of drug products and therapies as us, China’s government may in the future take regulatory actions that may materially 
adversely affect the business environment and financial markets in China as they relate to us, our ability to operate our business, our liquidity and our 
access to capital.

Unlike in a common law system, prior court decisions may be cited for reference but are not binding. Because the China legal system continues to rapidly 
evolve, the interpretations of many laws, regulations and rules are not always uniform and enforcement of these laws, regulations and rules involve 
uncertainties, which may limit legal protections available to us. Moreover, decision makers in the China judicial system have significant discretion in 
interpreting and implementing statutory and contractual terms, which may render it difficult for FibroGen Beijing to enforce the contracts it has entered 
into with our business partners, customers and suppliers. Different government departments may have different interpretations of certain laws and 
regulations, and licenses and permits issued or granted by one government authority may be revoked by a higher government authority at a later time. 
Furthermore, new laws or regulations may be passed, in some cases with little advance notice, that affect the way we or our collaboration partner do 
business in China (including the manufacture, sale, or distribution of roxadustat in China). Our business may be affected if we rely on laws and regulations 
that are subsequently adopted or interpreted in a manner different from our understanding of these laws and regulations. Navigating the uncertainty and 
change in the China legal and regulatory systems will require the devotion of significant resources and time, and there can be no assurance that our 
contractual and other rights will ultimately be maintained or enforced.

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Changes in China’s economic, governmental, or social conditions could have a material adverse effect on our business.

Chinese society and the Chinese economy continue to undergo significant change. Changes in the regulatory structure, regulations, and economic policies 
of the Chinese government could have a material adverse effect on the overall economic growth of China, which could adversely affect our ability to 
conduct business in China. The Chinese government continues to adjust economic policies to promote economic growth. Some of these measures benefit 
the overall Chinese economy, but may also have a negative effect on us. For example, our financial condition and results of operations in China may be 
adversely affected by government control over capital investments or changes in tax regulations. Recently, Chinese regulators announced regulatory actions 
aimed at providing China’s government with greater oversight over certain sectors of China’s economy, including the for-profit education sector and 
technology platforms that have a quantitatively significant number of users located in China. Although the biotech industry is already highly regulated in 
China and while there has been no indication to date that such actions or oversight would apply to companies that are similarly situated as us and that are 
pursuing similar portfolios of drug products and therapies as us, China’s government may in the future take regulatory actions that may materially 
adversely affect the business environment and financial markets in China as they relate to us. As the Chinese pharmaceutical industry grows and evolves, 
the Chinese government may also implement measures to change the regulatory structure and structure of foreign investment in this industry. We are unable 
to predict the frequency and scope of such policy changes and structural changes, any of which could materially and adversely affect FibroGen Beijing’s 
development and commercialization timelines, liquidity, access to capital, and its ability to conduct business in China. Any failure on our part to comply 
with changing government regulations and policies could result in the loss of our ability to develop and commercialize our product candidates in China. In 
addition, the changing government regulations and policies could result in delays and cost increases to our development, manufacturing, approval, and 
commercialization timelines in China.

We may be subject to additional Chinese requirements, approvals or permissions in the future.

We are incorporated in the state of Delaware. To operate our general business activities currently conducted in China, each of our Chinese subsidiaries (and 
our joint venture with AstraZeneca, Falikang) is required to and does obtain a business license from the local counterpart of the State Administration for 
Market Regulation. Such business licenses list the business activities we are authorized to carry out and we would be noncompliant if we act outside of the 
scope of business activities set forth under the relevant business license.

Due to China’s regulatory framework in general and for the pharmaceutical industry specifically, we are required to apply for and maintain many approvals 
or permits specific to many of our business activities, including but not limited to manufacturing, distribution, environment protection, workplace safety, 
cybersecurity, from both national and local government agencies. For example, FibroGen Beijing is required to maintain a Drug Product Production Permit 
that allows it to manufacture API and roxadustat capsules. Falikang, our joint venture with AstraZeneca, is required to maintain a Drug Product 
Distribution Permit in order to be able to distribute our drug product roxadustat in China. For certain of our clinical trials conducted in China, we need to 
obtain, through the clinical sites, permits from the Human Genetic Resources Administration of China to collect samples that include human genetic 
resources, such as blood samples.

We may also be required to obtain certain approvals from Chinese authorities before transferring certain scientific data abroad or to foreign parties or 
entities established or actually controlled by them.

None of our subsidiaries or our joint venture in China are required to obtain approval or prior permission from the China Securities Regulatory 
Commission, Cyberspace Administration of China, or any other Chinese regulatory authority under the Chinese laws and regulations currently in effect to 
issue securities to our investors. However, the approvals and permits we do have to comply with are numerous and there are uncertainties with respect to 
the Chinese legal system and changes in laws, regulations and policies, including how those laws and regulations will be interpreted or implemented. For 
further information, see the risk factor titled “Uncertainties with respect to the China legal system and regulations could have a material adverse effect on 
us.” There can be no assurance that we will not be subject to new or changing requirements, approvals or permissions in the future in order to operate in 
China.

If we are unable to obtain the necessary approvals or permissions in order to operate our business in China, if we inadvertently conclude that such 
approvals or permissions are not required, or if we are subject to additional requirements, approvals, or permissions, it could have an adverse effect on our 
business, financial condition and results of operations, our ability to raise capital and the market price of our common stock.

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If the Chinese government determines that our corporate structure does not comply with Chinese regulations, or if Chinese regulations change or are 
interpreted differently in the future, the value of our common stock may decline. 

In July 2021, the Chinese government provided new guidance on China-based companies raising capital outside of China, including through arrangements 
called variable interest entities. We do not employ a variable interest entity structure for purposes of replicating foreign investment in Chinese-based 
companies where Chinese law prohibits direct foreign investment. We do not operate in an industry that is currently subject to foreign ownership 
limitations in China. However, there are uncertainties with respect to the Chinese legal system and there may be changes in laws, regulations and policies, 
including how those laws and regulations will be interpreted or implemented. For further information, see the risk factor titled “Uncertainties with respect 
to the China legal system and regulations could have a material adverse effect on us.” If in the future the Chinese government determines that our 
corporate structure does not comply with Chinese regulations, or if Chinese laws or regulations change or are interpreted differently from our 
understanding of these laws and regulations, the value of our common stock may decline.

Our operations in China subject us to various Chinese labor and social insurance laws, and our failure to comply with such laws may materially and 
adversely affect our business, financial condition and results of operations.

We are subject to China Labor Contract Law, which provides strong protections for employees and imposes many obligations on employers. The Labor 
Contract Law places certain restrictions on the circumstances under which employers may terminate labor contracts and require economic compensation to 
employees upon termination of employment, among other things. In addition, companies operating in China are generally required to contribute to labor 
union funds and the mandatory social insurance and housing funds. Any failure by us to comply with Chinese labor and social insurance laws may subject 
us to late fees, fines and penalties, or cause the suspension or termination of our ability to conduct business in China, any of which could have a material 
and adverse effect on business, results of operations and prospects.

Risks Related to COVID-19

Our business could continue to be adversely affected by the ongoing COVID-19 global pandemic. 

The COVID-19 pandemic may continue to negatively impact our and/or our partners’ sales of roxadustat, clinical programs and timelines, and general 
productivity, the magnitude of which will depend, in part, on the progression of the disease, the efficacy of various mitigation efforts, including vaccines 
and other therapeutics in preventing and treating current and future COVID-19 variants, and restrictions (including lockdowns) governments impose in 
response to new outbreaks of COVID-19 variants.

During the pandemic, we have seen impacts from COVID-19 on various parts of our operations and at varying degrees. Currently, the greatest risks from 
COVID-19 are regarding enrollment of our ZEPHYRUS-2 Phase 3 IPF trial and our sales and manufacturing operations in China. There is a risk that our 
sales, manufacturing, clinical trials and operations could be further affected by additional or continued COVID-19 outbreaks or lockdowns, which could 
slow or pause enrollment, site initiation, manufacturing or sales. In addition, while we are trying to mitigate the effect of COVID-19 on existing patients, it 
is possible that some patients may not be able to continue to comply with protocols, which could further delay our clinical trial progress.

We believe we have sufficient stock of roxadustat and pamrevlumab supplies for our near-term expected commercial and clinical requirements. However, 
we only have a limited stockpile of these products, and therefore, further outbreaks of COVID-19, lockdowns like the ones in China, disruptions in 
shipping, or product expiration due to slowed clinical trials, could create supply shortages in our global supply chains. COVID-19 has also created 
increased demand for the limited global biologics manufacturing capacity, and for manufacturing supplies, including vials, reagents, supplements and 
media. Any such supply disruptions could adversely impact our clinical development and ability to generate revenues from our approved products and our 
business, financial condition, results of operations and growth prospects could be materially adversely affected.

Due to these and potentially additional business disruptions, there may be delays to any of our business areas including those outlined above, as well as in 
regulatory, distribution, warehousing and other development, commercialization and launch efforts. In addition, COVID-19 presents an ongoing health risk 
to our employees, including members of senior management. Health risks and remote work could affect the productivity of our workforce. The full extent 
of these potential effects is unknown, but any of which could have a material impact on our business, operating results, and financial condition. 

To the extent the ongoing COVID-19 pandemic adversely affects our business and results of operations, it may also have the effect of heightening many of 
the other risks and uncertainties described in this “Risk Factors” section.

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Risks Related to the Operation of Our Business

We have incurred significant losses since our inception and anticipate that we will continue to incur losses for the foreseeable future and may never 
achieve or sustain profitability. We may require additional financing in order to fund our operations, which may be dilutive to our shareholders, restrict 
our operations or require us to relinquish rights to our intellectual property or product candidates. If we are unable to raise capital when needed or on 
acceptable terms, we may be forced to delay, reduce or eliminate our research and development programs and/or our commercialization efforts. 

We are a biopharmaceutical company with two lead product candidates in clinical development, roxadustat for anemia in CKD, MDS, and chemotherapy-
induced anemia, and pamrevlumab for IPF, pancreatic cancer, and DMD. Most of our revenue generated to date has been based on our collaboration 
agreements and we have limited commercial drug product sales to date. We continue to incur significant research and development and other expenses 
related to our ongoing operations. Our net loss for the years ended December 31, 2022, 2021 and 2020 were $293.7 million, $290.0 million and $189.3 
million, respectively. As of December 31, 2022, we had an accumulated deficit of $1.6 billion. As of December 31, 2022, we had capital resources 
consisting of cash, cash equivalents and short-term investments of $422.0 million plus $4.3 million of long-term investments classified as available for sale 
securities. In addition, as of December 31, 2022, we had $16.3 million of accounts receivable in our current assets. Despite contractual development and 
cost coverage commitments from our collaboration partners, AstraZeneca and Astellas, and the potential to receive milestone and other payments from 
these partners, and despite commercialization efforts for roxadustat for the treatment of anemia caused by CKD, we anticipate we will continue to incur 
losses on an annual basis for the foreseeable future. If we do not successfully develop and continue to obtain regulatory approval for our existing or any 
future product candidates and effectively manufacture, market and sell the product candidates that are approved, we may never achieve or sustain 
profitability on a quarterly or annual basis. Our prior losses, combined with expected future losses, have had and will continue to have an adverse effect on 
our stockholders’ equity (deficit) and working capital. Our failure to become and remain profitable would depress the market price of our common stock 
and could impair our ability to raise capital, expand our business, diversify our product offerings or continue our operations.

We believe that we will continue to expend substantial resources for the foreseeable future as we continue to grow our operations in China, expand our 
clinical development efforts on pamrevlumab, continue to seek regulatory approval, establish commercialization capabilities of our product candidates, and 
pursue additional indications. These expenditures will include costs associated with research and development, conducting preclinical trials and clinical 
trials, obtaining regulatory approvals in various jurisdictions, and manufacturing and supplying products and product candidates for our partners and 
ourselves. The outcome of any clinical trial and/or regulatory approval process is highly uncertain and we are unable to fully estimate the actual costs 
necessary to successfully complete the development and regulatory approval process for our compounds in development and any future product candidates. 
We believe that our existing cash and cash equivalents, short-term and long-term investments and accounts receivable, cash flows from commercial sales 
and sales of drug product, and expected third-party collaboration revenues will allow us to fund our operating plans through at least 12 months from the 
date of issuance of these consolidated financial statements. Our operating plans or third-party collaborations may change as a result of many factors, 
including the success of our development and commercialization efforts, operations costs (including manufacturing and regulatory), competition, and other 
factors that may not currently be known to us, and we therefore may need to seek additional funds sooner than planned, through offerings of public or 
private securities, debt financing or other sources, such as revenue interest monetization or other structured financing. Future sales of equity or debt 
securities may result in dilution to stockholders, imposition of debt covenants and repayment obligations, or other restrictions that may adversely affect our 
business. We may also seek additional capital due to favorable market conditions or strategic considerations even if we currently believe that we have 
sufficient funds for our current or future operating plans.

Accordingly, we may seek additional funds sooner than planned. We may also seek additional capital due to favorable market conditions or strategic 
considerations even if we currently believe that we have sufficient funds for our current or future operating plans. 

Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop and 
commercialize any of our product candidates. We cannot guarantee that future financing will be available in sufficient amounts or on terms acceptable to 
us, if at all or that we will be able to satisfy the performance, financial and other obligations in connection with any such financings. Moreover, the terms of 
any financing may adversely affect the holdings or the rights of our stockholders and the issuance of additional securities, whether equity or debt, by us, or 
the possibility of such issuance, may cause the market price of our shares to decline. We could also be required to seek funds through additional 
collaborations, partnerships, licensing arrangements with third parties or otherwise at an earlier stage than would be desirable and we may be required to 
relinquish rights to intellectual property, future revenue streams, research programs, product candidates or to grant licenses on terms that may not be 
favorable to us, any of which may have a material adverse effect on our business, operating results and prospects. 

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In addition, the terms of any financing may adversely affect the holdings or the rights of our stockholders. If we raise additional funds by issuing equity 
securities, dilution to our existing stockholders will result. In addition, as a condition to providing additional funding to us, future investors may demand, 
and may be granted, rights superior to those of existing stockholders. Moreover, any debt financing, if available, may involve restrictive covenants that 
could limit our flexibility in conducting future business activities and, in the event of insolvency, would be paid before holders of equity securities received 
any distribution of corporate assets. For example, in 2022 we entered into a financing arrangement with an affiliate of NovaQuest Capital Management 
(“NovaQuest”) that imposes certain performance and financial obligations on our business. Our ability to satisfy and meet any future debt service 
obligations will depend upon our future performance, which will be subject to financial, business and other factors affecting our operations, many of which 
are beyond our control. 

If adequate funds are not available to us on a timely basis, we may be required to delay, limit, reduce or terminate our research and development efforts or 
other operations or activities that may be necessary to commercialize our product candidates.

Our non-dilutive transaction with NovaQuest could limit cash flow available for our operations, expose us to risks that could adversely affect our 
business, financial condition and results of operations, and contain various covenants and other provisions, which, if violated, could result in the 
acceleration of payments due in connection with such transaction or the foreclosure on security interest. 

On November 4, 2022, we entered into a revenue interest financing agreement (“RIFA”) with NovaQuest with respect to our revenues from Astellas’ sales 
of roxadustat in Europe, Japan and the other Astellas territories. 

Pursuant to the RIFA, we received $49.8 million from NovaQuest, representing the gross proceeds of $50.0 million net of initial issuance costs, in 
consideration for a portion of future revenues we will receive from Astellas. 

As material inducement for NovaQuest to enter into the RIFA, we granted NovaQuest a security interest over our rights, title and interest in and to the 
revenue interest payments and intellectual property related to roxadustat and the Astellas territories.

In addition, the RIFA includes customary reporting obligations and events of default by us. Upon the occurrence of an event of default, NovaQuest may 
exercise all remedies available to it at law or in equity in respect of the security interest.

For additional details about this financing transaction, see Note 8, Liability Related to Sale of Future Revenues, to the consolidated financial statements.

Our obligations under the RIFA could have significant negative consequences for our shareholders, and our business, results of operations and financial 
condition by, among other things:

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increasing our vulnerability to adverse economic and industry conditions;

limiting our ability to obtain additional non-dilutive financing or enter into collaboration or partnership agreements of a certain size;

requiring the dedication of a portion of our cash flow from operations to service our indebtedness, which will reduce the amount of cash available 
for other purposes;

limiting our flexibility to plan for, or react to, changes in our business;

placing us at a possible competitive disadvantage with competitors that are less leveraged than us or have better access to capital; and

if we fail to comply with the terms of the RIFA, resulting in an event of default that is not cured or waived, NovaQuest could seek to enforce their 
security interest in assets relating to roxadustat that secures such indebtedness.

To the extent we incur additional debt, the risks described above could increase.

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Most of our recent revenue has been earned from collaboration partners for our product candidates under development. 

If either or both of our Astellas and AstraZeneca collaborations were to be terminated, we could require significant additional capital in order to proceed 
with development and commercialization of our product candidates, including with respect to our potential commercialization of roxadustat for the 
treatment of anemia caused by CKD or MDS, or we may require additional partnering in order to help fund such development and commercialization. 
While we continue to commercialize roxadustat in China with AstraZeneca, and develop roxadustat in the U.S. for the treatment of anemia in patients with 
MDS, we have not been able to agree on a path forward for AstraZeneca to fund further roxadustat development in the U.S. for CKD anemia and there is a 
significant risk we will be unable to do so. There is also a significant risk that the AstraZeneca U.S./RoW Agreement will be amended or terminated. If 
adequate funds or partners are not available to us on a timely basis or on favorable terms, we may be required to delay, limit, reduce or terminate our 
development or commercialization efforts or other operations.

We may encounter difficulties in managing our growth and expanding our operations successfully.

As we seek to advance our product candidates through clinical trials and commercialization, we will need to expand our development, regulatory, 
manufacturing, commercialization and administration capabilities or contract with third parties to provide these capabilities for us. As our operations 
expand, we expect that we will need to increase the responsibilities of management. Our failure to accomplish any of these steps could prevent us from 
successfully implementing our strategy and maintaining the confidence of investors in us. 

Loss of senior management and key personnel could adversely affect our business. 

We are highly dependent on members of our senior management team, including Enrique Conterno, our Chief Executive Officer. The loss of the services of 
Mr. Conterno or any of our senior management could significantly impact the development and commercialization of our products and product candidates 
and our ability to successfully implement our business strategy.

Recruiting and retaining qualified commercial, development, scientific, clinical, and manufacturing personnel are and will continue to be critical to our 
success, particularly as we expand our commercialization operations. Furthermore, 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 product candidates. We may be unable to hire, train, retain or motivate these key 
personnel on acceptable terms given the intense competition among numerous biopharmaceutical companies for similar personnel.

There is also significant competition, in particular in the San Francisco Bay Area, for the hiring of experienced and qualified personnel, which increases the 
importance of retention of our existing personnel. If we are unable to continue to attract and retain personnel with the quality and experience applicable to 
our product candidates, our ability to pursue our strategy will be limited and our business and operations would be adversely affected.

We are exposed to the risks associated with litigation, investigations, regulatory proceedings, and other legal matters, any of which could have a 
material adverse effect on us.

We are currently and may in the future face legal, administrative and regulatory proceedings, claims, demands, investigations and/or other dispute-related 
matters involving, among other things, our products, product candidates, or other issues relating to our business as well as allegations of violation of U.S. 
and foreign laws and regulations relating to intellectual property, competition, securities, consumer protection, and the environment.

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For example, we and certain of our current and former executive officers have been named as defendants in a consolidated putative class action lawsuit 
(“Securities Class Action Litigation”) and certain of our current and former executive officers and directors have been named as defendants in several 
derivative lawsuits (“Derivative Litigation”). The complaint filed in the Securities Class Action Litigation alleges violations of the securities laws, 
including, among other things, that the defendants made certain materially false and misleading statements about our Phase 3 clinical studies data and 
prospects for FDA approval. The complaints filed in the Derivative Litigation asserts claims based on some of the same alleged misstatements and 
omissions as the Securities Class Action Litigation and seeks, among other things, unspecified damages. We intend to vigorously defend the claims made in 
the Securities Class Action Litigation and Derivative Litigation; however, the outcome of these matters cannot be predicted, and the claims raised in these 
lawsuits may result in further legal matters or actions against us, including, but not limited to, government enforcement actions or additional private 
litigation. In the fourth quarter of 2021, FibroGen received a subpoena from the SEC requesting documents related to roxadustat’s pooled cardiovascular 
safety data. We have been fully cooperating with the SEC’s investigation. 

Our Board of Directors also received three litigation demands from our purported shareholders, asking the Board of Directors to investigate and take action 
against certain current and former officers and directors of ours for alleged wrongdoing based on the same allegations in the pending derivative and 
securities class action lawsuits. We may in the future receive such additional demands.

We cannot predict whether any particular legal matter will be resolved favorably or ultimately result in charges or material damages, fines or other 
penalties, government enforcement actions, bars against serving as an officer or director, or civil or criminal proceedings against us or certain members of 
our senior management. For additional information regarding our pending litigation and SEC investigation, see Note 10, Commitments and Contingencies, 
to the consolidated financial statements.

Legal proceedings in general, and securities and class action litigation and regulatory investigations in particular, regardless of their merits or their ultimate 
outcomes, are costly, divert management’s attention and may materially adversely affect our business, results of operations, financial condition, prospects, 
and stock price. In addition, such legal matters could negatively impact our reputation among our customers, collaboration partners or our shareholders. 
Furthermore, publicity surrounding legal proceedings, including regulatory investigations, even if resolved favorably for us, could result in additional legal 
proceedings or regulatory investigations, as well as damage to our reputation.

If product liability lawsuits are brought against us, we may incur substantial liabilities and may have to limit commercial operations.

We face an inherent risk of product liability as a result of the clinical testing, manufacturing and commercialization of our product candidates. Any such 
product liability claims may include allegations of defects in manufacturing, defects in design, a failure to warn of dangers inherent in a product, 
negligence, strict liability or breach of warranty. Claims could also be asserted under state consumer protection acts. If we are unable to obtain insurance 
coverage at levels that are appropriate to maintain our business and operations, or if we are unable to successfully defend ourselves against product liability 
claims, we may incur substantial liabilities or otherwise cease operations. Product liability claims may result in:

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termination of further development of unapproved product candidates or significantly reduced demand for any approved products;

material costs and expenses to defend the related litigation;

a diversion of time and resources across the entire organization, including our executive management;

product recalls, product withdrawals or labeling restrictions;

termination of our collaboration relationships or disputes with our collaboration partners; and

reputational damage negatively impacting our other product candidates in development.

If we fail to obtain and retain sufficient product liability insurance at an acceptable cost to protect against potential product liability claims, we may not be 
able to continue to develop our product candidates. We maintain product liability insurance in a customary amount for the stage of development of our 
product candidates. Although we believe that we have sufficient coverage based on the advice of our third-party advisors, there can be no assurance that 
such levels will be sufficient for our needs. Moreover, our insurance policies have various exclusions, and we may be in a dispute with our carrier as to the 
extent and nature of our coverage, including whether we are covered under the applicable product liability policy. If we are not able to ensure coverage or 
are required to pay substantial amounts to settle or otherwise contest the claims for product liability, our business and operations would be negatively 
affected.

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Our business and operations would suffer in the event of computer system failures. 

Despite implementing security measures, our internal computer systems, and those of our CROs, collaboration partners, and other third parties on which we 
rely, are vulnerable to damage from computer viruses, unauthorized access, natural disasters, fire, terrorism, war and telecommunication and electrical 
failures. We upgraded our disaster and data recovery capabilities in 2022, and continue to maintain and upgrade these capabilities. However, to the extent 
that any disruption or security breach, in particular with our partners’ operations, results in a loss of, or damage to, our data or applications, or inappropriate 
disclosure of confidential or proprietary information, we could incur liability and it could result in a material disruption and delay of our drug development 
programs. For example, the loss of clinical trial data from completed, ongoing or planned clinical trials could result in delays in our regulatory approval 
efforts and significantly increase our costs to recover or reproduce the data. 

If our information technology systems or data, or those of third parties upon which we rely, are or were compromised, we could experience adverse 
consequences resulting from such compromise, including but not limited to regulatory investigations or actions; litigation; fines and penalties; 
disruptions of our business operations; reputational harm; loss of revenue or profits; and other adverse consequences. 

In the ordinary course of our business, we and the third parties upon which we rely process confidential, proprietary, and sensitive data, and, as a result, we 
and the third parties upon which we rely face a variety of evolving threats, including but not limited to ransomware attacks, which could cause security 
incidents. Cyber-attacks, malicious internet-based activity, online and offline fraud, and other similar activities threaten the confidentiality, integrity, and 
availability of our confidential, proprietary, and sensitive data and information technology systems, and those of the third parties upon which we rely.  Such 
threats are prevalent and continue to rise, are increasingly difficult to detect, and come from a variety of sources, including traditional computer “hackers,” 
threat actors, “hacktivists,” organized criminal threat actors, personnel (such as through theft or misuse), sophisticated nation states, and nation-state-
supported actors.  

Some actors now engage and are expected to continue to engage in cyber-attacks, including without limitation nation-state actors for geopolitical reasons 
and in conjunction with military conflicts and defense activities.  During times of war and other major conflicts, we and the third parties upon which we 
rely may be vulnerable to a heightened risk of these attacks, including retaliatory cyber-attacks, that could materially disrupt our systems and operations, 
supply chain, and ability to produce, sell and distribute our services.  

We and the third parties upon which we rely are subject to a variety of evolving threats, including but not limited to social-engineering attacks (including 
through phishing attacks), malicious code (such as viruses and worms), malware (including as a result of advanced persistent threat intrusions), denial-of-
service attacks (such as credential stuffing), credential harvesting, personnel misconduct or error, ransomware attacks, supply-chain attacks, software bugs, 
server malfunctions, software or hardware failures, loss of data or other information technology assets, adware, telecommunications failures, earthquakes, 
fires, floods, and other similar threats. 

In particular, severe ransomware attacks are becoming increasingly prevalent and can lead to significant interruptions in our operations, loss of confidential, 
proprietary, and sensitive data and income, reputational harm, and diversion of funds.  Extortion payments may alleviate the negative impact of a 
ransomware attack, but we may be unwilling or unable to make such payments due to, for example, applicable laws or regulations prohibiting such 
payments. 

In addition, our reliance on third-party service providers could introduce new cybersecurity risks and vulnerabilities, including supply-chain attacks, and 
other threats to our business operations.  We rely on third-party service providers and technologies to operate critical business systems to process 
confidential, proprietary, and sensitive data in a variety of contexts, including, without limitation, CROs, CMOs, cloud-based infrastructure, data center 
facilities, encryption and authentication technology, employee email, content delivery to customers, and other functions.  We also rely on third-party service 
providers to provide other products, services, parts, or otherwise to operate our business.  Our ability to monitor these third parties’ information security 
practices is limited, and these third parties may not have adequate information security measures in place. If our third-party service providers experience a 
security incident or other interruption, we could experience adverse consequences.  While we may be entitled to damages if our third-party service 
providers fail to satisfy their privacy or security-related obligations to us, any award may be insufficient to cover our damages, or we may be unable to 
recover such award.  In addition, supply-chain attacks have increased in frequency and severity, and we cannot guarantee that third parties’ infrastructure in 
our supply chain or our third-party partners’ supply chains have not been compromised.

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Any of the previously identified or similar threats could cause a security incident or other interruption that could result in unauthorized, unlawful, or 
accidental acquisition, modification, destruction, loss, alteration, encryption, disclosure of, or access to our confidential, proprietary, and sensitive data or 
our information technology systems, or those of the third parties upon whom we rely.  A security incident or other interruption could disrupt our ability 
(and that of third parties upon whom we rely) to provide our services. 

We may expend significant resources or modify our business activities to try to protect against security incidents.  Additionally, certain data privacy and 
security obligations may require us to implement and maintain specific security measures or industry-standard or reasonable security measures to protect 
our information technology systems and confidential, proprietary, and sensitive data.

While we have implemented security measures designed to protect against security incidents, there can be no assurance that these measures will be 
effective. We take steps to detect and remediate vulnerabilities, but we may not be able to detect and remediate all vulnerabilities because the threats and 
techniques used to exploit the vulnerability change frequently and are often sophisticated in nature.  Therefore, such vulnerabilities could be exploited but 
may not be detected until after a security incident has occurred.  These vulnerabilities pose material risks to our business.  Further, we may experience 
delays in developing and deploying remedial measures designed to address any such identified vulnerabilities. 

Applicable data privacy and security obligations may require us to notify relevant stakeholders, such as governmental authorities, partners, and affected 
individuals, of security incidents.  Such disclosures may involve inconsistent requirements and are costly, and the disclosure or the failure to comply with 
such requirements could lead to adverse consequences. 

If we (or a third party upon whom we rely) experience a security incident or are perceived to have experienced a security incident, we may experience 
adverse consequences, such as government enforcement actions (for example, investigations, fines, penalties, audits, and inspections); additional reporting 
requirements and/or oversight; restrictions on processing confidential, proprietary, and sensitive data (including personal data); litigation (including class 
claims); indemnification obligations; negative publicity; reputational harm; monetary fund diversions; interruptions in our operations (including availability 
of data); financial loss; and other similar harms.  Security incidents and attendant consequences may cause customers to stop using our services, deter new 
customers from using our services, and negatively impact our ability to grow and operate our business. 

Our contracts may not contain limitations of liability, and even where they do, there can be no assurance that limitations of liability in our contracts are 
sufficient to protect us from liabilities, damages, or claims related to our data privacy and security obligations.  We cannot be sure that our insurance 
coverage will be adequate or sufficient to protect us from or to mitigate liabilities arising out of our privacy and security practices, that such coverage will 
continue to be available on commercially reasonable terms or at all, or that such coverage will pay future claims.

In addition to experiencing a security incident, third parties may gather, collect, or infer sensitive information about us from public sources, data brokers, or 
other means that reveals competitively sensitive details about our organization and could be used to undermine our competitive advantage or market 
position.

Our headquarters are located near known earthquake fault zones. 

We and some of the third-party service providers on which we depend for various support functions are vulnerable to damage from catastrophic events, 
such as power loss, natural disasters, terrorism and similar unforeseen events beyond our control. Our corporate headquarters and other facilities are located 
in the San Francisco Bay Area, which in the past has experienced severe earthquakes and fires, and has been affected by the COVID-19 pandemic, 
including economic disruption resulting from the related shelter-in-place and stay-at-home governmental orders.

After a comprehensive earthquake risk analysis conducted by Marsh Risk, we decided not to purchase earthquake or flood insurance. Based upon (among 
other factors) the Marsh Risk analysis, the design and construction of our building, the expected potential loss, and the costs and deductibles associated 
with earthquake and flood insurance, we chose to self-insure. However, earthquakes or other natural disasters could severely disrupt our operations, or have 
a larger cost than expected, and have a material adverse effect on our business, results of operations, financial condition and prospects.

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If a natural disaster, power outage or other event occurred that prevented us from using all or a significant portion of our headquarters, damaged critical 
infrastructure, or otherwise disrupted operations, all critical systems and services can be accessible from the disaster recovery site, but it may be difficult or, 
in certain cases, impossible for us to continue our business for a substantial period of time. The disaster recovery and business continuity plans are in draft 
and are unlikely to provide adequate protection in the event of a serious disaster or similar event. We may incur substantial expenses as a result of the 
limited nature of our disaster recovery and business continuity plans, which, particularly when taken together with our lack of earthquake insurance, could 
have a material adverse effect on our business.

Furthermore, integral parties in our supply chain are operating from single sites, increasing their vulnerability to natural disasters or other sudden, 
unforeseen and severe adverse events, such as the COVID-19 pandemic. If such an event were to affect our supply chain, it could have a material adverse 
effect on our business.

Risks Related to Our Common Stock

The market price of our common stock may be highly volatile, and you may not be able to resell your shares at or above your purchase price.

In general, pharmaceutical, biotechnology and other life sciences company stocks have been highly volatile in the current market. The volatility of 
pharmaceutical, biotechnology and other life sciences company stocks is sometimes unrelated to the operating performance of particular companies and 
biotechnology and life science companies stocks often respond to trends and perceptions rather than financial performance. In particular, the market price 
of shares of our common stock could be subject to wide fluctuations in response to the following factors:

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results of clinical trials of our product candidates, including roxadustat and pamrevlumab;

the timing of the release of results of and regulatory updates regarding our clinical trials;

the level of expenses related to any of our product candidates or clinical development programs;

results of clinical trials of our competitors’ products;

safety issues with respect to our product candidates or our competitors’ products;

regulatory actions with respect to our product candidates and any approved products or our competitors’ products;

fluctuations in our financial condition and operating results, which will be significantly affected by the manner in which we recognize revenue from 
the achievement of milestones under our collaboration agreements;

adverse developments concerning our collaborations and our manufacturers;

the termination of a collaboration or the inability to establish additional collaborations;

the inability to obtain adequate product supply for any approved drug product or inability to do so at acceptable prices;

disputes or other developments relating to proprietary rights, including patents, litigation matters and our ability to obtain patent protection for our 
technologies;

changes in legislation or other regulatory developments affecting our product candidates or our industry;

fluctuations in the valuation of the biotechnology industry and particular companies perceived by investors to be comparable to us;

speculation in the press or investment community;

announcements of investigations or regulatory scrutiny of our operations or lawsuits filed against us;

activities of the government of China, including those related to the pharmaceutical industry as well as industrial policy generally;

performance of other U.S. publicly traded companies with significant operations in China;

changes in market conditions for biopharmaceutical stocks; and

the other factors described in this “Risk Factors” section.

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As a result of fluctuations caused by these and other factors, comparisons of our operating results across different periods may not be accurate indicators of 
our future performance. Any fluctuations that we report in the future may differ from the expectations of market analysts and investors, which could cause 
the price of our common stock to fluctuate significantly. Moreover, securities class action litigation has often been initiated against companies following 
periods of volatility in their stock price. We are currently subject to such litigation and it has diverted, and could continue to result in diversions of, our 
management’s attention and resources and it could result in significant expense, monetary damages, penalties or injunctive relief against us. For a 
description of our pending litigation and SEC investigation, see Note 10, Commitments and Contingencies, to the consolidated financial statements.

We may engage in acquisitions that could dilute stockholders and harm our business.

We may, in the future, make acquisitions of or investments in companies that we believe have products or capabilities that are a strategic or commercial fit 
with our present or future product candidates and business or otherwise offer opportunities for us. In connection with these acquisitions or investments, we 
may:

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issue stock that would dilute our existing stockholders’ percentage of ownership;

incur debt and assume liabilities; and

incur amortization expenses related to intangible assets or incur large and immediate write-offs.

We may not be able to complete acquisitions on favorable terms, if at all. If we do complete an acquisition, we cannot assure you that it will ultimately 
strengthen our competitive position or that it will be viewed positively by customers, financial markets or investors. Furthermore, future acquisitions could 
pose numerous additional risks to our operations, including:

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problems integrating the purchased business, products or technologies, or employees or other assets of the acquisition target;

increases to our expenses;

disclosed or undisclosed liabilities of the acquired asset or company;

diversion of management’s attention from their day-to-day responsibilities;

reprioritization of our development programs and even cessation of development and commercialization of our current product candidates;

harm to our operating results or financial condition;

entrance into markets in which we have limited or no prior experience; and

potential loss of key employees, particularly those of the acquired entity.

We may not be able to complete any acquisitions or effectively integrate the operations, products or personnel gained through any such acquisition.

Provisions in our charter documents and Delaware law may have anti-takeover effects that could discourage an acquisition of us by others, and may 
prevent attempts by our stockholders to replace or remove our current directors or management.

Provisions in our amended and restated certificate of incorporation and amended and restated bylaws contain provisions that may have the effect of 
discouraging, delaying or preventing a change in control of us or changes in our management. These provisions could also limit the price that investors 
might be willing to pay in the future for shares of our common stock, thereby depressing the market price of our common stock. In addition, because our 
Board of Directors is responsible for appointing the members of our management team, these provisions may frustrate or prevent any attempts by our 
stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our Board of Directors. 
Among other things, these provisions:

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authorize “blank check” preferred stock, which could be issued by our Board of Directors without stockholder approval and may contain voting, 
liquidation, dividend and other rights superior to our common stock;

create a classified Board of Directors whose members serve staggered three-year terms;

specify that special meetings of our stockholders can be called only by our Board of Directors pursuant to a resolution adopted by a majority of the 
total number of directors;

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prohibit stockholder action by written consent;

establish an advance notice procedure for stockholder approvals to be brought before an annual meeting of our stockholders, including proposed 
nominations of persons for election to our Board of Directors;

provide that our directors may be removed prior to the end of their term only for cause;

provide that vacancies on our Board of Directors may be filled only by a majority of directors then in office, even though less than a quorum;

require a supermajority vote of the holders of our common stock or the majority vote of our Board of Directors to amend our bylaws; and

require a supermajority vote of the holders of our common stock to amend the classification of our Board of Directors into three classes and to 
amend certain other provisions of our certificate of incorporation.

These provisions, alone or together, could delay or prevent hostile takeovers and changes in control or changes in our management by making it more 
difficult for stockholders to replace members of our Board of Directors, which is responsible for appointing the members of our management.

Moreover, because we are incorporated in Delaware, we are governed by certain anti-takeover provisions under Delaware law which may discourage, delay 
or prevent someone from acquiring us or merging with us whether or not it is desired by or beneficial to our stockholders. We are subject to the provisions 
of Section 203 of the Delaware General Corporation Law, which prohibits a person who owns in excess of 15% of our outstanding voting stock from 
merging or combining with us for a period of three years after the date of the transaction in which the person acquired in excess of 15% of our outstanding 
voting stock, unless the merger or combination is approved in a prescribed manner.

Any provision of our amended and restated certificate of incorporation, our amended and restated bylaws or Delaware law that has the effect of delaying or 
deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock, and could also 
affect the price that some investors are willing to pay for our common stock.

Changes in our tax provision or exposure to additional tax liabilities could adversely affect our earnings and financial condition. 

As a multinational corporation, we are subject to income taxes in the U.S. and various foreign jurisdictions. Significant judgment is required in determining 
our global provision for income taxes and other tax liabilities. In the ordinary course of a global business, there are intercompany transactions and 
calculations where the ultimate tax determination is uncertain. Our income tax returns are subject to audits by tax authorities. Although we regularly assess 
the likelihood of adverse outcomes resulting from these examinations to determine our tax estimates, a final determination of tax audits or tax disputes 
could have an adverse effect on our results of operations and financial condition.

We are also subject to non-income taxes, such as payroll, withholding, excise, customs and duties, sales, use, value-added, net worth, property, gross 
receipts, and goods and services taxes in the U.S., state and local, and various foreign jurisdictions. We are subject to audit and assessments by tax 
authorities with respect to these non-income taxes and the determination of these non-income taxes is subject to varying interpretations arising from the 
complex nature of tax laws and regulations. Therefore, we may have exposure to additional non-income tax liabilities, which could have an adverse effect 
on our results of operations and financial condition. 

The tax regulations in the U.S. and other jurisdictions in which we operate are extremely complex and subject to change. Changes in tax regulations could 
have an adverse effect on our results of operations and financial condition.

Tariffs imposed by the U.S. and those imposed in response by other countries could have a material adverse effect on our business.

Changes in U.S. and foreign governments’ trade policies have resulted in, and may continue to result in, tariffs on imports into and exports from the U.S. 
Throughout 2018 and 2019, the U.S. imposed tariffs on imports from several countries, including China. In response, China has proposed and implemented 
their own tariffs on certain products, which may impact our supply chain and our costs of doing business. If we are impacted by the changing trade 
relations between the U.S. and China, our business and results of operations may be negatively impacted. Continued diminished trade relations between the 
U.S. and other countries, including potential reductions in trade with China and others, as well as the continued escalation of tariffs, could have a material 
adverse effect on our financial performance and results of operations.

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Our certificate of incorporation designates courts located in Delaware as the sole forum for certain proceedings, which could limit our stockholders’ 
ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees. 

Our amended and restated certificate of incorporation provides that, subject to limited exceptions, the Court of Chancery of the State of Delaware is the 
sole and exclusive forum for the following types of actions or proceedings under Delaware statutory or common law: (1) any derivative action or 
proceeding brought on our behalf, (2) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to 
us or our stockholders, (3) any action asserting a claim against us arising pursuant to any provision of the Delaware General Corporation Law, our amended 
and restated certificate of incorporation or our amended and restated by-laws, or (4) any other action asserting a claim against us that is governed by the 
internal affairs doctrine. This provision would not apply to suits brought to enforce a duty or liability created by the Exchange Act. Furthermore, Section 22 
of the Securities Act creates concurrent jurisdiction for federal and state courts over all such Securities Act actions. Accordingly, both state and federal 
courts have jurisdiction to entertain such claims. While the Delaware courts determined that such choice of forum provisions are facially valid, a 
stockholder may nevertheless seek to bring a claim in a venue other than that designated in the exclusive forum provisions. For example, one of the 
Derivative Litigation was brought in federal court in California, despite the exclusive forum provision. We are currently moving to dismiss that lawsuit on 
the basis of improper forum and we would expect to vigorously assert the validity and enforceability of the exclusive forum provisions of our amended and 
restated certificate of incorporation in any additional litigations that are brought in a venue other than that designated in the exclusive forum provision. This 
may require significant additional costs associated with resolving such action in other jurisdictions and there can be no assurance that the provisions will be 
enforced by a court in those other jurisdictions. 

This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our 
directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and employees. If a court were to find 
these provisions of our amended and restated certificate of incorporation inapplicable to, or unenforceable in respect of, one or more of the specified types 
of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions, which could adversely affect our 
business and financial condition.

We do not plan to pay dividends. Capital appreciation will be your sole possible source of gain, which may never occur.

You should not rely on an investment in our common stock to provide dividend income. We do not anticipate that we will pay any cash dividends to holders 
of our common stock in the foreseeable future and investors seeking cash dividends should not purchase our common stock. We plan to retain any earnings 
to invest in our product candidates and maintain and expand our operations. Therefore, capital appreciation, or an increase in your stock price, which may 
never occur, may be the only way to realize any return on your investment.

Our business or our share price could be negatively affected as a result of shareholder proposals or actions.

Public companies are facing increasing attention from stakeholders relating to environmental, social and governance matters, including corporate 
governance, executive compensation, environmental stewardship, social responsibility, and diversity and inclusion. Key stakeholders may advocate for 
enhanced environmental, social and governance disclosures or policies or may request that we make corporate governance changes or engage in certain 
corporate actions that we believe are not currently in the best interest of FibroGen or our stockholders. Responding to challenges from stockholders, such as 
proxy contests or media campaigns, could be costly and time consuming and could have an adverse effect on our reputation, which could have an adverse 
effect on our business and operational results, and could cause the market price of our common stock to decline or experience volatility.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 2. PROPERTIES

Our corporate and research and development operations are located in San Francisco, California, where we lease approximately 234,000 square feet of 
office and laboratory space with approximately 30,000 square feet subleased. The lease for our San Francisco headquarters was originally scheduled to 
expire in 2023, and in June 2021, we amended the lease to extend it through 2028. We also lease approximately 67,000 square feet of office and 
manufacturing space in Beijing, China, and multiple office spaces in Beijing and Shanghai, China. Our leases in China expire in 2026. We have constructed 
a commercial manufacturing facility of approximately 5,500 square meters in Cangzhou, China, on approximately 33,000 square meters of land. Our right 
to use such land expires in 2068. We believe our facilities are adequate for our current needs and that suitable additional or substitute space would be 
available if needed.

76

 
ITEM 3. LEGAL PROCEEDINGS

We are a party to various legal actions that arose in the ordinary course of our business. We recognize accruals for any legal action when we conclude that a 
loss is probable and reasonably estimable. We did not have any material accruals for any active legal action in our consolidated balance sheet as of 
December 31, 2022, as we could not predict the ultimate outcome of these matters, or reasonably estimate the potential exposure. For a discussion of our 
legal proceedings, refer to Note 10, Commitments and Contingencies, to the consolidated financial statements.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

77

 
PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF 
EQUITY SECURITIES

Market Information for Common Stock

Our common stock has been listed on the Nasdaq Global Select Market (“Nasdaq”) since November 14, 2014, under the symbol “FGEN.” Prior to our 
initial public offering, there was no public market for our common stock.

Stock Price Performance Graph

The following graph illustrates a comparison of the total cumulative stockholder return for our common stock since December 31, 2017 to two indices: the 
NASDAQ Composite Index and the NASDAQ Biotechnology Index. The graph assumes an initial investment of $100 on December 31, 2017, in our 
common stock, the stocks comprising the NASDAQ Composite Index, and the stocks comprising the NASDAQ Biotechnology Index. The stockholder 
return shown in the graph below is not necessarily indicative of future performance, and we do not make or endorse any predictions as to future stockholder 
returns.

The above Stock Price Performance Graph and related information shall not be deemed “soliciting material” or to be “filed” with the Securities and 
Exchange Commission, nor shall such information be incorporated by reference into any future filing under the Securities Act or Exchange Act, except to 
the extent that we specifically incorporate it by reference into such filing.

Dividend Policy

We have never declared or paid any cash dividends on our capital stock. We currently intend to retain all available funds and any future earnings to support 
our operations and finance the growth and development of our business. We do not intend to pay cash dividends on our common stock for the foreseeable 
future. Any future determination related to our dividend policy will be made at the discretion of our board of directors and will depend on then-existing 
conditions, including our financial condition, operating results, contractual restrictions, capital requirements, business prospects and other factors our board 
of directors may deem relevant.

78

 
 
Stockholders

As of January 31, 2023, there were 113 registered stockholders of record for our common stock. This number of registered stockholders does not include 
stockholders whose shares are held in street names by brokers and other nominees, or may be held in trust by other entities. Therefore, the actual number of 
stockholders is greater than this number of registered stockholders of record. 

Recent Sales of Unregistered Securities

None.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

None.

ITEM 6. [RESERVED]

79

 
 
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial 
statements and related notes and other financial information included in Item 8 of this Annual Report on Form 10-K for the year ended December 31, 2022 
(“Annual Report”). Some of the information contained in this discussion and analysis or set forth elsewhere in this Annual Report, including information 
with respect to our plans and strategy for our business, international operations and product candidates, includes forward-looking statements that involve 
risks and uncertainties. You should review the “Forward-Looking Statements” and ““Risk Factors” sections of this Annual Report for a discussion of 
important factors that could cause our actual results to differ materially from the results described in or implied by the forward-looking statements 
contained in the following discussion and analysis.

This discussion and analysis generally addresses 2022 and 2021 items and year-over-year comparisons between 2022 and 2021. Discussions of 2020 items 
and year-over-year comparisons between 2021 and 2020 that are not included in this Annual Report can be found in “Item 7. Management’s Discussion 
and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed 
with the SEC on February 28, 2022.

BUSINESS OVERVIEW

We are headquartered in San Francisco, California, with subsidiary offices in Beijing and Shanghai, People’s Republic of China (“China”). We are a 
leading biopharmaceutical company discovering, developing and commercializing a pipeline of first-in-class therapeutics. We apply our pioneering 
expertise in hypoxia-inducible factor (“HIF”) biology, 2-oxoglutarate enzymology, and connective tissue growth factor biology to advance innovative 
medicines for the treatment of anemia, fibrotic disease, and cancer. 

We have a pipeline of late-stage clinical programs as well as preclinical drug candidates at various stages of development that include both small molecules 
and biologics. Our goal is to build a diversified pipeline with novel drugs that will address unmet patient needs in oncology, immunology, and fibrosis.

We and Astellas Pharma Inc. (“Astellas”) are collaborating on the development and commercialization of roxadustat in territories including Japan, Europe, 
Turkey, Russia and the Commonwealth of Independent States, the Middle East, and South Africa. We and AstraZeneca AB (“AstraZeneca”) are 
collaborating on the development and commercialization of roxadustat in the United States (“U.S.”), China, other markets in the Americas, Australia/New 
Zealand, and Southeast Asia.

Financial Highlights

Result of Operations
Revenue
Operating costs and expenses
Net loss
Net loss per share - basic and diluted

Balance Sheet
Cash and cash equivalents
Short-term and long-term investments
Accounts receivable

2022

Years Ended December 31,
2021
(in thousands, except for per share data)

2020

  $

  $

140,734     $
441,759    
(293,654 )  

(3.14 )   $

235,309    
523,839    
(290,023 )  
(3.14 )  

$

$

176,319  
368,199  
(189,291 )
(2.11 )

December 31, 2022

December 31, 2021

  $
  $
  $

(in thousands)

155,700    
270,656    
16,299    

$
$
$

171,223  
401,763  
17,401  

Our revenue for the year ended December 31, 2022 included the revenues recognized related to the following:

•

•

$25.0 million regulatory milestone recognized in the first quarter of 2022 under our collaboration agreements with our partner Astellas associated 
with the approval of EVRENZO® (roxadustat) in Russia. Of this amount, $22.6 million was recognized as license revenue and the remainder was 
included as development revenue;

$22.4 million of development revenue recognized under our collaboration agreements with our partners Astellas and AstraZeneca; 

80

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
•

•

$82.9 million from roxadustat commercial sales in China, mostly from sales to Beijing Falikang Pharmaceutical Co. Ltd. (“Falikang”); and 

$11.1 million of drug product revenue related to active pharmaceutical ingredient (“API”) deliveries to Astellas.

As comparison, our revenue for the year ended December 31, 2021 included the revenues recognized related to the following:

•

•

•

•

$120.0 million regulatory milestones recognized under our collaboration agreement with Astellas associated with the approval by European 
Commission of EVRENZO® (roxadustat) for the treatment of adult patients with symptomatic anemia associated with CKD during the third quarter 
of 2021. Of this amount, $108.4 million was recognized as license revenue and the remainder included as development revenue; 

$70.3 million of development revenue recognized under our collaboration agreements with our partners Astellas and AstraZeneca; 

$47.6 million of net product revenue from roxadustat commercial sales in China, mostly from sales to Falikang; and 

$8.0 million upfront license payment recognized under our license agreement (defined below) with Eluminex Biosciences (Suzhou) Limited 
(“Eluminex”).

Operating costs and expenses decreased for the year ended December 31, 2022 compared to the prior year as a result of the net effect of the following:

•

•

•

•

•

•

•

$60.0 million for acquired in-process research and development asset from HiFiBiO Therapeutics (“HiFiBiO”) in the prior year, which did not recur 
in the current year;

$19.1 million lower employee-related expenses and $5.6 million lower stock-based compensation expenses primarily due to lower headcount as part 
of the cost reduction effort we started to implement in the second half of 2021 following the CRL for roxadustat in CKD anemia in the U.S., and 
payroll tax refunds received during the year ended December 31, 2022, partially offset by overall merit increase during the current year; 

$15.0 million lower clinical trial expenses associated with roxadustat post-approval safety studies and Phase 3 trials for pamrevlumab;

$2.3 million lower outside services expenses due to lower promotional expenses and sample costs for roxadustat in China.

$7.4 million higher cost of goods sold due to higher roxadustat product sales;

$7.1 million higher drug development expenses associated with drug substance and drug product manufacturing activities primarily related to 
pamrevlumab; and

$6.7 million higher legal expenses primarily due to a one-time favorable patent-related court ruling recorded in the prior year.

Our research and development expenses were $296.8 million, $387.0 million and $252.9 million for the years ended December 31, 2022, 2021 and 2020, 
respectively. Since inception and through December 31, 2022, we have incurred a total of approximately $2.9 billion in research and development 
expenses, a majority of which relates to the development of roxadustat, pamrevlumab and other HIF-PH inhibitors. We expect to continue to incur 
significant expenses and operating losses over at least the next few years as we continue to make investments in research and development to advance our 
product candidate portfolio. In addition, we expect to incur significant expenses relating to seeking regulatory approval for our product candidates and 
commercializing those products in various markets, including China. We consider the active management and development of our clinical pipeline to be 
particularly crucial to our long-term success. The process of conducting the necessary clinical research to obtain regulatory approval is costly and time 
consuming. We started to implement a cost reduction effort in the second half of 2021, following the complete response letter (“CRL”) for roxadustat in the 
U.S. As a result, operating expenses have decreased and may continue to decrease in certain areas over time. 

The actual probability of success for each of our product candidates and clinical programs, and our ability to generate product revenue and become 
profitable, depends upon a variety of factors, including the quality of the product candidate, clinical results, investment in the program, competition, 
manufacturing capability, commercial viability, and our and our partners’ ability to successfully execute our development and commercialization plans. For 
a description of the numerous risks and uncertainties associated with product development, refer to the “Risk Factors” section of this Annual Report.

81

 
During the year ended December 31, 2022, we had a net loss of $293.7 million, or net loss per basic and diluted share of $3.14, as compared to a net loss of 
$290.0 million, or net loss per basic and diluted share of $3.14 for the prior year, primarily due to a decrease in revenues, almost entirely offset by a 
decrease in operating costs and expenses.

Cash and cash equivalents, investments and accounts receivable totaled $442.7 million at December 31, 2022, a decrease of $147.7 million from December 
31, 2021, primarily due to cash used in operations and investment in our pre-clinical pipeline, partially offset by the proceeds received from sale of future 
revenues.

Licensing Activities

Exclusive License with Eluminex 

In July 2021, we exclusively licensed to Eluminex global rights to our investigational biosynthetic cornea derived from recombinant human collagen type 
III. 

Under the terms of the agreement with Eluminex, Eluminex made an $8.0 million upfront payment to FibroGen during the first quarter of 2022. In 
addition, FibroGen may receive up to a total of $64.0 million in future manufacturing, clinical, regulatory, and commercial milestone payments for the 
biosynthetic cornea program, as well as $36.0 million in commercial milestones for the first recombinant collagen III product that is not the biosynthetic 
cornea. FibroGen will be eligible to receive mid single-digit to low double-digit royalties based upon worldwide net sales of cornea products, and low 
single-digit to mid single-digit royalties based on worldwide net sales of other recombinant human collagen type III products that are not cornea products.

During the third quarter of 2021, the $8.0 million upfront license payment was recognized as license revenue for the performance obligations satisfied. See 
the Eluminex Agreements section in Note 3, Collaboration Agreements, License Agreement and Revenues, to the consolidated financial statements for 
details.

Collaboration Partnerships for Roxadustat 

Our current and future research, development, manufacturing and commercialization efforts with respect to roxadustat depend on funds from our 
collaboration agreements with Astellas and AstraZeneca. See Note 3, Collaboration Agreements, License Agreement and Revenues, to the consolidated 
financial statements for details.

Astellas

In June 2005, we entered into a collaboration agreement with Astellas for the development and commercialization (but not manufacture) of roxadustat for 
the treatment of anemia in Japan (“Astellas Japan Agreement”). In April 2006, we entered into the Europe Agreement with Astellas for roxadustat for the 
treatment of anemia in Europe, the Commonwealth of Independent States, the Middle East, and South Africa (“Astellas Europe Agreement”). Under these 
agreements, the aggregate amount for upfront payments and milestone payments received through December 31, 2022 totals $790.1 million. 

On March 21, 2022, EVRENZO® (roxadustat) was registered with the Russian Ministry of Health. We evaluated the regulatory milestone payment 
associated with the approval in Russia under the Astellas Europe Agreement and concluded that this milestone was achieved in the first quarter of 2022. 
Accordingly, the consideration of $25.0 million associated with this milestone was included in the transaction price and allocated to performance 
obligations under the Astellas Europe Agreement, all of which was recognized as revenue during the first quarter of 2022 from performance obligations 
satisfied. 

In 2018, we and Astellas entered into an amendment to the Astellas Japan Agreement that will allow Astellas to manufacture roxadustat drug product for 
commercialization in Japan (the “Astellas Japan Amendment”). The related drug product revenue was $9.5 million and $2.1 million for the years ended 
December 31, 2022 and 2021, respectively. 

During the first quarter of 2021, we entered into an EU Supply Agreement with Astellas under the Astellas Europe Agreement to define general forecast, 
order, supply and payment terms for Astellas to purchase roxadustat bulk drug product from FibroGen in support of commercial supplies (the “Astellas EU 
Supply Agreement”). The related drug product revenue was $1.6 million and $1.1 million for the years ended December 31, 2022 and 2021, respectively. 

In addition, as of December 31, 2022, Astellas had a separate investment of $80.5 million in the equity of FibroGen, Inc.

82

 
AstraZeneca

In July 2013, we entered into a collaboration agreement with AstraZeneca for roxadustat for the treatment of anemia in the U.S. and all territories not 
previously licensed to Astellas (the “AstraZeneca U.S./RoW Agreement”), except China. In July 2013, through our China subsidiary and related affiliates, 
we entered into the China Agreement with AstraZeneca for roxadustat for the treatment of anemia in China (the “AstraZeneca China Agreement”). The 
aggregate amount for upfront payments and milestone payments received through December 31, 2022 totals $516.2 million.

Under the AstraZeneca China Agreement, which is conducted through FibroGen China Anemia Holdings, Ltd., FibroGen (China) Medical Technology 
Development Co., Ltd. (“FibroGen Beijing”), and FibroGen International (Hong Kong) Limited (collectively, “FibroGen China”), the commercial 
collaboration was structured as a 50/50 profit share, which was amended by the AstraZeneca China Amendment in the third quarter of 2020, as discussed 
and defined below in AstraZeneca China Amendment. 

In 2020, we entered into a Master Supply Agreement with AstraZeneca under the AstraZeneca U.S./RoW Agreement (the “AstraZeneca Master Supply 
Agreement”) to define general forecast, order, supply and payment terms for AstraZeneca to purchase roxadustat bulk drug product from FibroGen in 
support of commercial supplies. There was no related drug product revenue for year ended December 31, 2022. The related drug product revenue was 
($2.2) million for year ended December 31, 2021.

AstraZeneca China Amendment

In July 2020, FibroGen China and AstraZeneca (together with FibroGen China, the “Parties”) entered into an amendment, effective July 1, 2020, to the 
AstraZeneca China Agreement, relating to the development and commercialization of roxadustat in China (the “AstraZeneca China Amendment”). 

Under the AstraZeneca China Amendment, in September 2020, FibroGen Beijing and AstraZeneca completed the establishment of a jointly owned entity, 
Falikang, which performs roxadustat distribution, as well as conduct sales and marketing through AstraZeneca. We account for our investment in Falikang 
under the equity method, and Falikang is not consolidated into our consolidated financial statements. In addition, we recognized our proportionate share of 
the reported profits or losses of Falikang, as other income (loss) in the consolidated statement of operations, and as an adjustment to investment in 
unconsolidated subsidiary in the consolidated balance sheet. See Note 4, Equity method investment - Variable Interest Entity, to the consolidated financial 
statements for details.

Since Falikang became fully operational in January 2021, substantially all direct roxadustat product sales to distributors in China are made by Falikang, 
while FibroGen Beijing continues to sell roxadustat product directly in one province in China. FibroGen Beijing manufactures and supplies commercial 
product to Falikang based on an agreed upon transfer price, which includes gross transfer price, net of calculated profit share. AstraZeneca now bills the co-
promotion expenses to Falikang and to FibroGen Beijing, respectively, for its services provided to the respective entity. AstraZeneca is entitled to 
reimbursement of its sales and marketing expenses up to a cumulative capped amount of a percentage of net sales. Once such amount is reached, 
AstraZeneca will bill the co-promotion expenses based on actual costs as incurred plus a markup on a prospective basis, which is currently expected to 
continue through 2028. In addition, Development costs continue to be shared 50/50 between the Parties.

We recognize revenue upon the transfer of control of commercial products to Falikang in an amount that reflects the allocation of transaction price of the 
China manufacturing and supply obligation (“China performance obligation”) to the performance obligation satisfied during the reporting period. For our 
direct sales of commercial drug product, we recognize revenue when control of the promised good is transferred to the customer in an amount that reflects 
the consideration that we expect to be entitled to in exchange for the product. During the years ended December 31, 2022 and 2021, we recognized $71.2 
million and $35.6 million of net product revenue from the sales to Falikang, respectively, and $11.7 million and $12.1 million of net product revenue from 
sales directly to distributors in one province in China, as described in details under Product Revenue, Net section below. 

FibroGen, Inc. and AstraZeneca concurrently amended the AstraZeneca U.S./RoW Agreement to reflect minor changes in the governance structure under 
the AstraZeneca China Agreement. 

83

 
Additional Information Related to Collaboration Agreements

For more detailed discussions on the accounting for these agreements, See Note 3, Collaboration Agreements, License Agreement and Revenues, to the 
consolidated financial statements. 

Total cash consideration received through December 31, 2022 and potential cash consideration for upfront payments and milestone payments under our 
collaboration agreements are as follows:

Astellas--related-party:

Astellas Japan Agreement
Astellas Europe Agreement

Total Astellas

AstraZeneca:

AstraZeneca U.S./RoW Agreement
AstraZeneca China Agreement

Total AstraZeneca

Total

Cash Received for Upfront 
Payments and Milestone 
Payments
Through
December 31, 2022

Additional
Potential
Cash Payment for Milestones

(in thousands)

Total
Potential
Cash Payments for Upfront 
Payments and Milestones

  $

  $

105,093    $
685,000     
790,093     

439,000     
77,200     
516,200     
1,306,293    $

67,500    $
60,000     
127,500     

810,000     
299,500     
1,109,500     
1,237,000    $

172,593  
745,000  
917,593  

1,249,000  
376,700  
1,625,700  
2,543,293  

The above table does not include development cost reimbursement, transfer price payments, and royalties and profit share under our existing collaboration 
agreements. While we continue to commercialize roxadustat in China with AstraZeneca, and develop roxadustat in the U.S. for the treatment of anemia in 
patients with myelodysplastic syndromes (“MDS”), we have not been able to agree on a path forward for AstraZeneca to fund further roxadustat 
development for CKD anemia in the U.S. Therefore, we do not expect to receive most or all of these potential AstraZeneca U.S./RoW Agreement 
milestones from AstraZeneca.

RESULTS OF OPERATIONS

Revenue

Revenue:

2022

Years Ended December 31,
2021

2020

Change 2022 vs. 2021

$

%

(dollars in thousands)

License revenue
Development and other revenue
Product revenue, net
Drug product revenue

Total revenue

  $

  $

22,590     $
24,189    
82,869    
11,086    
140,734     $

116,434     $
70,275    
47,638    
962    
235,309     $

14,323     $
80,592    
72,498    
8,906    
176,319     $

(93,844 )    
(46,086 )    
35,231      
10,124      
(94,575 )    

(81 ) %
(66 ) %
74   %
1,052   %

(40 ) %

Under our revenue recognition policy, license revenue includes amounts from upfront, non-refundable license payments and amounts allocated pursuant to 
the standalone selling price method from other consideration received during the respective periods. This revenue is generally recognized as deliverables 
are met and services are performed. License revenues represented 16%, 50% and 8% of total revenues for the years ended December 31, 2022, 2021 and 
2020, respectively.

Development revenue includes co-development and other development related services. We recognize development services as revenue in the period in 
which they are billed to our partners, excluding China. As of December 31, 2022, we expect the future development services to continue through 2024. For 
China co-development services, we defer revenue until we begin to transfer control of the manufactured commercial product to AstraZeneca, which 
commenced in the first quarter of 2021 and we expect to continue through 2028, which reflects our best estimates. Other revenues consist of contract 
manufacturing revenue and sales of research and development material and have not been material for any of the periods presented. Development and other 
revenues represented 17%, 30% and 46% of total revenues for the years ended December 31, 2022, 2021 and 2020, respectively.

84

 
 
 
 
   
   
 
 
 
 
 
 
   
 
   
 
 
   
   
 
     
     
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
 
   
 
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We recognize product revenue when our customer obtains control of promised goods or services in an amount that reflects the consideration we expect to 
receive in exchange for those goods or services. Product revenue represented 59%, 20% and 41% of total revenue for the years ended December 31, 2022, 
2021 and 2020, respectively.

Drug product revenue includes commercial-grade API or bulk drug product sales to AstraZeneca, under the AstraZeneca U.S./RoW Agreement, and 
Astellas in support of pre-commercial preparation prior to the New Drug Application or marketing authorization application approval, and to Astellas for 
ongoing commercial launch in Japan and Europe. We recognize drug product revenue when we fulfill the inventory transfer obligations. The amount of 
variable consideration that is included in the transaction price may be constrained, and is included in the drug product revenue only to the extent that it is 
probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period when the uncertainty associated 
with the variable consideration is subsequently resolved. Actual amounts of consideration ultimately received in the future may differ from our estimates, 
for which we will adjust these estimates and affect the drug product revenue in the period such variances become known. Drug product revenues 
represented 8%, 0%, and 5% of total revenues for the years ended December 31, 2022, 2021 and 2020, respectively.

In the future, we will continue generating revenue from collaboration agreements in the form of license fees, milestone payments, reimbursements for 
collaboration services and royalties on drug product sales, and from product sales. We expect that any revenues we generate will fluctuate from quarter to 
quarter due to the uncertain timing and amount of such payments and sales.

Total revenue decreased $94.6 million, or 40.0% for the year ended December 31, 2022 compared to the year ended December 31, 2021 for the reasons 
discussed in the sections below.

License Revenue

License revenue:

Astellas
Eluminex

Total license revenue

2022

Years Ended December 31,
2021

2020

Change 2022 vs. 2021

$

%

(dollars in thousands)

  $

  $

22,590     $
—    
22,590     $

108,434     $
8,000    
116,434     $

14,323     $
—    
14,323     $

(85,844 )    
(8,000 )    
(93,844 )    

(79 ) %
(100 ) %

(81 ) %

License revenue decreased $93.8 million, or 81% for the year ended December 31, 2022 compared to the year ended December 31, 2021. 

License revenue recognized under our collaboration agreements with Astellas for the year ended December 31, 2022 represented the allocated revenue 
related to $25.0 million regulatory milestone associated with the approval of EVRENZO® (roxadustat) in Russia that was included in the transaction price 
during the first quarter of 2022 when such milestone was achieved.

License revenue recognized under our collaboration agreements with Astellas for the year ended December 31, 2021 represented the allocated revenue 
related to a total of $120.0 million regulatory milestones associated with the approval by European Commission of EVRENZO® (roxadustat) for the 
treatment of adult patients with symptomatic anemia associated with CKD during the third quarter of 2021.

License revenue recognized under our license agreement with Eluminex for the year ended December 31, 2021 represented the $8.0 million upfront license 
payment for the performance obligations satisfied.

85

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
     
   
   
 
 
 
Development and Other Revenue

Development revenue:

Astellas
AstraZeneca

Total development revenue

Other revenue

Total development and other revenue

2022

Years Ended December 31,
2021

2020

Change 2022 vs. 2021

$

%

(dollars in thousands)

  $

  $

9,908     $
12,519    
22,427    
1,762    
24,189     $

21,927     $
48,345    
70,272    
3    
70,275     $

19,174     $
61,418    
80,592    
—    
80,592     $

(12,019 )    
(35,826 )    
(47,845 )    
1,759      
(46,086 )    

(55 ) %
(74 ) %
(68 ) %
58,633   %

(66 ) %

Development and other revenue decreased $46.1 million, or 66% for the year ended December 31, 2022 compared to the year ended December 31, 2021. 

Development revenue recognized under our collaboration agreements with Astellas for the year ended December 31, 2022 included the allocated revenue 
of $2.4 million related to the above-mentioned $25.0 million regulatory milestone associated with the approval in Russia during the first quarter of 2022. 
Comparatively, development revenue recognized under our collaboration agreements with Astellas for the year ended December 31, 2021 included the 
allocated revenue of $11.6 million related to the above-mentioned $120.0 million associated with the approvals in EU achieved during the third quarter of 
2021. 

In addition, development revenue recognized under our collaboration agreements with Astellas decreased in co-development billings related to the 
development of roxadustat under our collaboration agreements with Astellas for the year ended December 31, 2022 as a result of the substantial completion 
of Phase 3 trials for roxadustat. 

Development revenue recognized under our collaboration agreements with AstraZeneca for the year ended December 31, 2022 was impacted by the 
decrease in CKD-related co-development billings in the U.S. 

Other revenue recognized for the year ended December 31, 2022 was primarily related to our contract manufacturing agreement with Eluminex, under 
which we are responsible for supplying the cornea product at 110% of our product manufacturing costs until our manufacturing technology is fully 
transferred to Eluminex. 

Product Revenue, Net

Direct Sales:
Gross revenue
Price adjustment
Non-key account hospital listing award
Contractual sales rebate
Other discounts and rebates
Sales returns

Direct sales revenue, net

Sales to Falikang:
Gross transaction price
Profit share

Net transaction price
Decrease (increase) in deferred revenue

Sales to Falikang revenue, net

Total product revenue, net

2022

Years Ended December 31,
2021

2020

Change 2022 vs. 2021

$

%

(dollars in thousands)

  $

  $

12,366     $
242    
49    
(624 )  
(332 )  
1    
11,702    

112,544    
(43,716 )  
68,828    
2,339    
71,167    
82,869     $

86

13,727     $
(982 )  
95    
(832 )  
(21 )  
83    
12,070    

97,531    
(34,759 )  
62,772    
(27,204 )  
35,568    
47,638     $

89,027     $
—    
(9,325 )  
(6,189 )  
(923 )  
(92 )  
72,498    

—    
—    
—    
—    
—    
72,498     $

(1,361 )    
1,224      
(46 )    
208      
(311 )    
(82 )    
(368 )    

(10 ) %
(125 ) %
(48 ) %
(25 ) %
1,481   %
(99 ) %
(3 ) %

15,013      
(8,957 )    
6,056      
29,543      
35,599      
35,231      

15   %
26   %
10   %
(109 ) %
100   %

74   %

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
     
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
     
     
 
     
     
     
     
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
In January 2021, Falikang became fully operational and substantially all direct product sales to distributors in China were made by Falikang, while 
FibroGen Beijing continued to sell product directly in one province in China. Total product revenue, net increased $35.2 million, or 74% for the year ended 
December 31, 2022 compared to the year ended December 31, 2021.

We recognize product revenue from direct sales to distributors in an amount that reflects the consideration that we expect to be entitled to in exchange for 
those products, net of various sales rebates and discounts. 

Product revenue from direct sales, net decreased $0.4 million, or 3% for the year ended December 31, 2022 compared to the year ended December 31, 
2021. The gross product revenue from direct sales to distributors decreased $1.4 million, or 10% for the year ended December 31, 2022 compared to the 
year ended December 31, 2021, primarily due to the lower National Reimbursement Drug List price effective in the first quarter of 2022 and unfavorable 
foreign currency translation rate of Renminbi against the U.S. dollar during the current year period, partially offset by an increase in sales volume.

The discounts and rebates primarily consisted of the contractual sales rebate that were calculated based on the stated percentage of gross sales by each 
distributor in the distribution agreement. The discounts and rebates for the year ended December 31, 2021 included $1.0 million of price adjustments 
recorded based on government-listed price guidance and estimated channel inventory levels. The remaining discounts and rebates were immaterial for the 
years ended December 31, 2022 and 2021 due to the transition from direct sales to sales to Falikang. 

FibroGen Beijing manufactures and supplies commercial product to Falikang based on an agreed upon transfer price, which includes gross transfer price, 
net of calculated profit share. We recognize revenue upon the transfer of control of commercial products to Falikang in an amount that reflects the 
allocation of the China performance obligation transaction price to the performance obligation satisfied during the reporting period. The variable 
consideration components that are included in the transaction price may be constrained, and are included in the product revenue only to the extent that it is 
probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period when the uncertainty associated 
with the variable consideration is subsequently resolved. 

Sales to Falikang revenue, net increased $35.6 million, or 100% for the year ended December 31, 2022 compared to the year ended December 31, 2021. 
The gross transfer price increased $15.0 million and the calculated profit share increased $9.0 million for the year ended December 31, 2022 compared to 
the year ended December 31, 2021, respectively, primarily due to the increase in sales volume, offset by the lower National Reimbursement Drug List price 
effective in the first quarter of 2022, and unfavorable foreign currency translation rate of Renminbi against the U.S. dollar during the current year period.

Periodically, we update our assumptions such as total sales quantity, performance period and other inputs including foreign currency translation impact, 
among others. Following updates to our estimates, we recognized $2.3 million from the previously deferred revenue of the China performance obligation 
during the year ended December 31, 2022, and deferred $27.2 million from the net transaction price to Falikang, which we included in the related deferred 
revenue of the China performance obligation during the year ended December 31, 2021.

Drug Product Revenue

Drug product revenue:

Astellas Japan Agreement
Astellas Europe Agreement
AstraZeneca U.S./RoW Agreement

Total drug product revenue:

2022

Years Ended December 31,
2021

2020

Change 2022 vs. 2021

$

%

(dollars in thousands)

  $

  $

9,480     $
1,606    
—    
11,086     $

87

2,056     $
1,130    
(2,224 )  

962     $

4,281     $
—    
4,625    
8,906     $

7,424      
476      
2,224      
10,124      

361   %
42   %
100   %

1,052   %

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
     
   
   
 
 
 
   
 
 
 
 
Drug product revenue increased $10.1 million, or 1,052% for the year ended December 31, 2022 compared to the year ended December 31, 2021. 

Astellas Japan Agreement

During the year ended December 31, 2021, we updated our estimate of variable consideration related to the API shipments fulfilled under the terms of 
Astellas Japan Amendment, and accordingly recorded adjustments to the drug product revenue of $2.1 million. Specifically, the change in estimated 
variable consideration was based on the API held by Astellas at period end, adjusted to reflect the changes in the estimated bulk product strength mix 
intended to be manufactured by Astellas, estimated cost to convert the API to bulk product tablets, and estimated yield from the manufacture of bulk 
product tablets, among others. 

During the first quarter of 2022, we fulfilled a shipment obligation under the terms of Astellas Japan Amendment and recognized related drug product 
revenue of $9.8 million in the same period. During the fourth quarter of 2022, we fulfilled a shipment obligation under the terms of Astellas Japan 
Amendment, and recognized related drug product revenue of $8.4 million in the same period.

In addition, we updated our estimate of variable consideration related to the API shipments fulfilled under the terms of Japan Amendment with Astellas, 
and recorded a reduction to the drug product revenue of $8.7 million during the year ended December 31, 2022. Specifically, the change in estimated 
variable consideration was based on the API held by Astellas at period end, adjusted to reflect foreign currency translation impact, the changes in the 
estimated bulk product strength mix intended to be manufactured by Astellas, estimated cost to convert the API to bulk product tablets, and estimated yield 
from the manufacture of bulk product tablets, among others. This amount was included in accrued liabilities and as of December 31, 2022, the related 
balance in accrued liabilities was $6.5 million, representing our best estimate that this amount will be paid within the next 12 months. 

Astellas Europe Agreement

During the first quarter of 2021, we transferred bulk drug product from process validation supplies for commercial purposes under the terms of the Astellas 
Europe Agreement and the Astellas EU Supply Agreement. We recorded the consideration of $11.8 million from this inventory transfer as deferred revenue 
as of December 31, 2021, due to a high degree of uncertainty associated with the final consideration. 

During the fourth quarter of 2021, we transferred bulk drug product for commercial purposes under the terms of the Astellas Europe Agreement and the 
Astellas EU Supply Agreement, and recognized the related fully-burdened manufacturing costs of $1.0 million as drug product revenue, and recorded $8.3 
million as deferred revenue as of December 31, 2021, due to a high degree of uncertainty associated with the final consideration. 

During the second quarter of 2022, we transferred bulk drug product for commercial purposes under the terms of the Astellas Europe Agreement and the 
Astellas EU Supply Agreement, and recognized the related fully-burdened manufacturing costs of $1.0 million as drug product revenue, and recorded $23.2
million as deferred revenue due to a high degree of uncertainty associated with the variable consideration for revenue recognition purposes. 

During the first quarter of 2022, we billed and received $49.2 million from Astellas related to the annual transfer price true up for bulk drug product 
transferred for commercial purposes. We recorded this amount in deferred revenue and netted it against an unbilled contract asset as of December 31, 2021. 
We updated our estimate of variable consideration related to the bulk drug product transferred in prior years. Specifically, the change in estimated variable 
consideration was based on the bulk drug product held by Astellas at the period end, adjusted to reflect the changes in the estimated transfer price, forecast 
information, shelf-life estimates and other items. As a result, during the year ended December 31, 2022, we reclassified a total of $57.4 million from the 
related deferred revenue to accrued liabilities. As of December 31, 2022, the related balance in accrued liabilities was $57.4 million, representing our best 
estimate that this amount will be paid within the next 12 months. 

In addition, we recognized royalty revenue of $0.6 million and $0.2 million as drug product revenue from the deferred revenue under the Astellas Europe 
Agreement for the years ended December 31, 2022 and 2021, respectively. The remainder of the deferred revenue will be recognized as and when 
uncertainty is resolved, based on the performance of roxadustat product sales in the Astellas territory.

88

 
AstraZeneca U.S./RoW Agreement 

We shipped bulk drug product to AstraZeneca as commercial supply under the terms of the AstraZeneca Master Supply Agreement in 2020 and during the 
first half of 2021. Following the CRL for roxadustat in CKD anemia in the U.S. received in August 2021, we evaluated the impact of these developments in 
revising our estimates of variable consideration associated with drug product revenue. As a result, we updated the estimated transaction price for these 
shipments and recorded a reduction to drug product revenue of $(2.2) million for the year ended December 31, 2021, and recorded $11.2 million as 
deferred revenue as of December 31, 2021. 

During the first quarter of 2022, we evaluated the current developments in the U.S. market, and updated our estimates of variable consideration associated 
with bulk drug product shipments to AstraZeneca in prior years as commercial supply under the terms of the AstraZeneca Master Supply Agreement. As a 
result, during the year ended December 31, 2022, we reclassified $11.2 million from the related deferred revenue to accrued liabilities. As of December 31, 
2022, the related balance in accrued liabilities was $11.2 million, representing our best estimate that this amount will be paid within the next 12 months.

Operating Costs and Expenses

Operating costs and expenses

Cost of goods sold
Research and development
Selling, general and administrative

Total operating costs and expenses

2022

Years Ended December 31,
2021

2020

Change 2022 vs. 2021

$

%

(dollars in thousands)

  $

  $

20,280     $

296,791    
124,688    
441,759     $

12,871     $

387,043  
123,925    
523,839     $

8,869     $

252,924  
106,406    
368,199     $

7,409      
(90,252 )    
763      
(82,080 )    

58   %
(23 ) %
1   %

(16 ) %

Total operating expenses decreased $82.1 million, or 16%, for the year ended December 31, 2022 compared to the year ended December 31, 2021, for the 
reasons discussed in the sections below.

Cost of goods sold

Cost of goods sold increased $7.4 million, or 58%, for the year ended December 31, 2022 compared to the year ended December 31, 2021.

Cost of goods sold, associated with the roxadustat commercial sales in China, consists of direct costs to manufacture commercial product, as well as 
indirect costs including factory overhead, storage, shipping, quality assurance, idle capacity charges, and inventory valuation adjustments. Cost of goods 
sold associated with the roxadustat commercial sales in China was $15.1 million for the year ended December 31, 2022, as compared to $9.3 million for the 
year ended December 31, 2021, an increase of $5.8 million, resulting from the increase in the sales volume, partially offset by improved unit cost efficiency 
primarily due to higher production volume.

Cost of goods sold associated with the roxadustat drug product revenue in the U.S. was $3.8 million and $3.6 million for the years ended December 31, 
2022 and 2021, respectively, associated with the costs of API or bulk drug product delivered to Astellas and AstraZeneca in the respective periods. We 
expect costs of goods sold to increase in relation to drug product revenue as we deplete inventories that we had expensed prior to receiving regulatory 
approvals.

Cost of goods sold for the year ended December 31, 2022 also included manufacturing costs $1.4 million related to our contract manufacturing revenue 
from Eluminex.

89

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
     
     
   
 
   
   
   
 
 
 
Research and Development Expenses

Research and development expenses consist of third-party research and development costs and the fully-burdened amount of costs associated with work 
performed under collaboration agreements. Research and development expenses include employee-related expenses for research and development 
functions, expenses incurred under agreements with clinical research organizations, other clinical and preclinical costs and allocated direct and indirect 
overhead costs, such as facilities costs, information technology costs and other overhead. We expense research and development costs as incurred. We 
recognize costs for certain development activities based on an evaluation of the progress to completion of specific tasks using information and data 
provided to us by our vendors and our clinical sites. Research and development expenses also include in-process research and development assets that have 
no alternative future use other than in a particular research and development project. Following the CRL for roxadustat in CKD anemia in the U.S., we 
have implemented a cost reduction effort and, as a result, research and development expenses have decreased and may continue to decrease in certain areas 
over time.

The following table summarizes our research and development expenses incurred during the years ended December 31, 2022, 2021 and 2020:

Product Candidate

Pamrevlumab
Roxadustat
Other research and development expenses

Total research and development expenses

  Phase of
  Development

  Phase 2/3
  Phase 3

2022

Years Ended December 31,
2021
(in thousands)

2020

  $

  $

198,764     $
46,469    
51,558    
296,791     $

188,534    
97,245    
101,264   *
387,043    

$

$

111,728  
122,962  
18,234  
252,924  

*  Other research and development expenses included $60.0 million of acquired in-process research and development assets related to upfront payments to 
HiFiBiO during the year ended December 31, 2021.

The program-specific expenses summarized in the table above include costs we directly attribute to our product candidates. We allocate research and 
development salaries, benefits, stock-based compensation and other indirect costs to our product candidates on a program-specific basis, and we include 
these costs in the program-specific expenses. 

Research and development expenses decreased $90.3 million, or 23%, for the year ended December 31, 2022 compared to the year ended December 31, 
2021 as a result of the net effect of the following:

•

•

•

•

Decrease of $60.0 million for acquired in-process research and development asset from HiFiBiO, which incurred in the prior year;

Decrease of $16.4 million in employee-related costs and decrease of $5.7 million in stock-based compensation expenses primarily due to lower 
headcount as part of the cost reduction effort we started to implement in the second half of 2021 following the CRL for roxadustat in CKD anemia 
in the U.S., and payroll tax refunds received during the year ended December 31, 2022, partially offset by overall merit increase during the current 
year;

Decrease of $15.0 million in clinical trials costs, primarily due to Phase 3 trials for pamrevlumab and CKD studies for roxadustat reaching to their 
completion; and

Increase of $7.1 million in drug development expenses associated with drug substance and drug product manufacturing activities primarily related to 
pamrevlumab.

90

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Selling, General and Administrative Expenses 

Selling, general and administrative (“SG&A”) expenses consist primarily of employee-related expenses for executive, operational, finance, legal, 
compliance, and human resource functions. SG&A expenses also include facility-related costs, professional fees, accounting and legal services, other 
outside services including co-promotional expenses associated with our commercialization efforts in China, recruiting fees and expenses associated with 
obtaining and maintaining patents. Following the CRL for roxadustat in CKD anemia in the U.S., we have implemented a cost reduction effort and, as a 
result, SG&A expenses have decreased in certain areas and may continue to decrease over time.

SG&A expenses remained relatively flat for the year ended December 31, 2022 compared to the year ended December 31, 2021, as a result of the net effect 
of the following:

•

•

•

Decrease of $2.7 million in employee-related costs primarily due to payroll tax refunds received during the year ended December 31, 2022, lower 
headcount in the general and administrative functions as part of the cost reduction effort we started to implement in the second half of 2021, 
partially offset by overall merit increase during the current year; 

Decrease of $2.3 million in outside services expenses due to lower promotional expenses and sample costs for roxadustat in China; and

Increase of $6.7 million in legal expenses primarily due to a one-time favorable patent-related court ruling recorded in the prior year.

Interest and Other, Net

Interest and other, net:
Interest expense
Interest income and other income (expenses), net

Total interest and other, net

Interest Expense

2022

Years Ended December 31,
2021

2020

Change 2022 vs. 2021
%

$

(dollars in thousands)

  $

  $

(1,440 )
7,596  
6,156  

  $

  $

(1,075 )
(1,078 )
(2,153 )

  $

  $

(2,402 )   $
5,553    
3,151     $

(365 )    
8,674      
8,309      

34   %
805   %

386   %

Interest expense relates to our finance lease liabilities accretion primarily for our leased facilities in San Francisco and China. Interest expense also includes 
interest related to the Technology Development Center of the Republic of Finland product development obligations.

Interest expense increased $0.4 million, or 34% for the year ended December 31, 2022 compared to the year ended December 31, 2021, primarily due to 
the $1.0 million interest expense related to sale of future revenues under the revenue interest financing agreement (“RIFA”) with an affiliate of NovaQuest 
Capital Management (“NovaQuest”). See Note 8, Liability Related to Sale of Future Revenues, to the consolidated financial statements for details. The 
increase was partially offset by the decrease due to the lease modification and renewal in 2021 being classified as operating leases, as compared to finance 
leases previously. 

Interest Income and Other Income (Expenses), Net 

Interest income and other income (expenses), net primarily include interest income earned on our cash, cash equivalents and investments, foreign currency 
transaction gains (losses), remeasurement of certain monetary assets and liabilities in non-functional currency of our subsidiaries into the functional 
currency, realized gains (losses) on sales of investments, and other non-operating income and expenses. 

Interest income and other income (expenses), net increased $8.7 million, for the year ended December 31, 2022 compared to the year ended December 31, 
2021, primarily due to an impact of $7.9 million resulting from a reduction to other expenses recorded during the second quarter of 2022 to release the 
previously estimated late payment fees related to value added tax in China, upon the receipt of a written evidence from China’s State Taxation 
Administration, which confirmed the transfer of certain intellectual property rights in 2020 relating to our Chinese business between our wholly owned 
subsidiaries is exempted from value added tax. In addition, the interest income from our investments was higher for the year ended December 31, 2022 
compared to the year ended December 31, 2021 due to higher average investment balances and higher interest rate during the current year.

91

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
     
 
     
   
 
 
   
   
 
Provision for Income Taxes

Loss before income taxes
Provision for income taxes

Effective tax rate

2022

Years Ended December 31,
2021
(dollars in thousands)

2020

  $

    $

(294,869 )
358  
(0.1 ) %    

    $

(290,683 )
347  
(0.1 ) %    

(188,729 )
360  
(0.2 ) %

The provisions for income taxes for the years ended December 31, 2022 and 2020 were due to foreign taxes. 

Based upon the weight of available evidence, which includes our historical operating performance, reported cumulative net losses since inception and 
expected continuing net loss, we have established a full valuation allowance against our net deferred tax assets as we do not currently believe that 
realization of those assets is more likely than not. We intend to continue maintaining a full valuation allowance on our deferred tax assets until there is 
sufficient evidence to support the reversal of all or some portion of this allowance. 

During 2020, we transferred certain intellectual property rights relating to our Chinese business between our wholly owned subsidiaries that are based in 
different tax jurisdictions. The transferor entity was not subject to income taxes in its local jurisdiction. The acquiring entity of the intellectual property is 
entitled to amortize the acquisition price of the intangible assets for tax purposes. In accordance with ASU 2016-16, Intra-Entity Transfers of Assets Other 
Than Inventory, we recognized a deferred tax asset of $78.7 million for the temporary difference arising from the acquirer’s excess tax basis. Furthermore, 
based upon the weight of available evidence, we recognized a full valuation allowance against this deferred tax asset since it does not currently believe that 
realization of this gross deductible temporary difference is more likely than not. Accordingly, this inter-company transfer did not have a material impact to 
our consolidated financial statements. 

Investment Income (Loss) in Unconsolidated Variable Interest Entity

Investment income (loss) in unconsolidated variable interest entity represented our proportionate share of the reported profits or losses of Falikang, an 
unconsolidated variable interest entity accounted for under the equity method, and was immaterial for the years ended December 31, 2022 and 2021. See 
Note 4, Equity method investment - Variable Interest Entity, to the consolidated financial statements for details.

LIQUIDITY AND CAPITAL RESOURCES

Financial Conditions

We have historically funded our operations principally from the sale of common stock (including our public offering proceeds) and from the execution of 
collaboration agreements involving license payments, milestones and reimbursement for development services. 

As of December 31, 2022, we had cash and cash equivalents of $155.7 million, compared to $171.2 million as of December 31, 2021. Cash is invested in 
accordance with our investment policy, primarily with a view to liquidity and capital preservation. Investments, consisting of available-for-sale securities, 
and stated at fair value, are also available as a source of liquidity. As of December 31, 2022, we had short-term investments of $266.3 million and long-
term investments of $4.3 million, respectively, compared to $234.0 million and $167.8 million, respectively, as of December 31, 2021. As of December 31, 
2022, a total of $92.5 million of our cash and cash equivalents was held outside of the U.S. in our foreign subsidiaries, including $71.2 million held in 
China, to be used primarily for our China operations.

On November 4, 2022, we entered into a RIFA with NovaQuest with respect to our revenues from Astellas’ sales of roxadustat in Europe, Japan and the 
other Astellas territories. Pursuant to the RIFA, we received $49.8 million from NovaQuest, representing the gross proceeds of $50.0 million net of initial 
issuance costs, in consideration for a portion of future revenues we will receive from Astellas. For additional details about this financing transaction, see 
Note 8, Liability Related to Sale of Future Revenues, to the consolidated financial statements.

92

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
 
 
 
Cash flows from Falikang, a distribution joint venture between FibroGen Beijing and AstraZeneca, and cash flows into FibroGen Beijing, are currently 
intended to remain onshore in China. Our long-term plans for distributing cash flows from FibroGen Beijing may involve any number of scenarios 
including keeping the money onshore to fund future expansion of our China operations or paying down certain debt obligations. To date, no such debt 
repayments have occurred, nor have there been any other payments or distributions from FibroGen Beijing to entities or investors outside of China. Our 
capital contributions to FibroGen Beijing and the liquidity position of FibroGen Beijing depend on many factors, including those set forth under Part I, 
Item 1A “Risk Factors” in this Annual Report.

Cash Sources and Uses

The following table summarizes the primary sources and uses of cash for the years ended December 31, 2022, 2021 and 2020 (in thousands):

Net cash provided by (used in):

Operating activities
Investing activities
Financing activities
Effect of exchange rate changes on cash and cash equivalents

Net increase (decrease) in cash and cash equivalents

2022

Years Ended December 31,
2021

2020

  $

  $

(145,933 )   $
89,116    
46,776    
(5,482 )  
(15,523 )   $

(82,232 )   $

(426,972 )  
(563 )  
2,597    
(507,170 )   $

81,602  
452,487  
13,343  
4,695  
552,127  

Operating Activities

Net cash used in operating activities was $145.9 million for the year ended December 31, 2022 and consisted primarily of net loss of $293.7 million 
adjusted for non-cash items and non-operating activities of $77.3 million and a net increase in operating assets and liabilities of $70.4 million. The 
significant non-cash items included stock-based compensation expense of $65.6 million, and depreciation expense of $10.0 million. The significant items 
in the changes in operating assets and liabilities included the following:

•

•

•

•

•

•

Accrued and other liabilities increased $90.6 million, primarily related to the total of $75.1 million for API and bulk drug product price true-up as of 
December 31, 2022, resulting from changes in estimated variable consideration associated with the API shipments fulfilled under the terms of the 
Astellas Japan Amendment, the bulk drug product transferred under the terms of the Astellas Europe Agreement and the Astellas EU Supply 
Agreement, and the bulk drug product shipments to AstraZeneca under the terms of the AstraZeneca Master Supply Agreement. See the Drug 
Product Revenue section in Note 3, Collaboration Agreements, License Agreement and Revenues, to the consolidated financial statements for 
details. The accrued and other liabilities were also impacted by the classification of a portion of accrued co-promotion expenses from other long-
term liabilities to current liabilities based on the updated estimate of timing for payment, and by the timing of invoicing and payment;

Accounts payable increased $5.9 million, primarily driven by the timing of invoicing and payments;

Prepaid expenses and other current assets decreased $4.9 million, primarily due to the collection of $8.0 million from Eluminex for upfront license 
payment during the first quarter of 2022, and less prepayments made for roxadustat API manufacturing activities, partially offset by a payroll tax 
refund recorded as other receivables as of December 31, 2022 and received in the first quarter of 2023;

Other long-term liabilities decreased $18.3 million primarily driven by the above-mentioned classification of a portion of accrued co-promotion 
expenses from other long-term liabilities to current liabilities based on the updated estimate of timing for payment;

Inventories increased $11.0 million, driven by the increased inventory level primarily related to inventory cost capitalized related to Europe and 
other territories, and FibroGen Beijing’s productions of roxadustat for commercial sales purposes; and

Deferred revenue decreased $4.1 million, primarily related to revenue recognized from the previously deferred revenue of the China performance 
obligation during the year ended December 31, 2022, and the above-mentioned reclassification to accrued liabilities, resulting from changes in 
estimated variable consideration associated with the API or bulk drug product deliveries fulfilled with Astellas and AstraZeneca. See the Drug 
Product Revenue section in Note 3, Collaboration Agreements, License Agreement and Revenues, to the consolidated financial statements for 
details.

93

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
Net cash used in operating activities was $82.2 million for the year ended December 31, 2021 and consisted primarily of net loss of $290.0 million adjusted 
for non-cash items and non-operating activities of $147.7 million and a net increase in operating assets and liabilities of $60.1 million. The significant non-
cash items included stock-based compensation expense of $71.2 million, expense for acquired in-process research and development asset from HiFiBiO of 
$60.0 million, depreciation expense of $10.2 million, and amortization of finance lease ROU of $4.6 million. The significant items in the changes in 
operating assets and liabilities included the increases resulting from the following:

•

•

•

Deferred revenue of $57.6 million, primarily related to the above-mentioned $25.9 million and $11.2 million of the deferred considerations of the 
bulk drug product shipped to Astellas and AstraZeneca, respectively, due to a high degree of uncertainty associated with the final consideration, and 
$27.2 million of the deferred revenue from the sales to Falikang associated with the China performance obligation. The change in deferred revenue 
was also driven by the extension of the estimated future non-contingent development period and recognition of revenues under our collaboration 
agreements with Astellas and AstraZeneca;

Accounts receivable of $25.2 million, primarily driven by the timing of the receipt of upfront payments and the recognition of revenues under our 
collaboration agreements with Astellas and AstraZeneca;

Accrued and other liabilities of $16.4 million, primarily driven by $14.2 million increase in co-promotion expenses at December 31, 2021 that is 
anticipated to be paid within the next 12 months, offset by $12.0 million decrease in contract liabilities to pharmaceutical distributors at December 
31, 2021 due to settlement during the year. The accrued and other liabilities were also impacted by the timing of invoicing and payment; 

The increases were partially offset by the decreases resulting from the following:

•

•

•

•

Inventories of $14.2 million, driven by the increased inventory level primarily related to FibroGen Beijing’s productions of roxadustat for 
commercial sales purposes and inventory capitalized in the U.S.;

Other long-term liabilities of $12.1 million, primarily due to the decrease in the co-promotional expenses with AstraZeneca for its sales and 
marketing efforts related to the commercial launch of roxadustat in China that are not expected to be paid in the next year;

Prepaid expenses and other current assets of $9.9 million, primarily due to the unbilled upfront license payment from Eluminex of $8.0 million, and 
prepayments made for roxadustat API manufacturing activities; and 

Other assets of $4.4 million, primarily related to the increases in various licenses. 

Investing Activities

Investing activities primarily consist of purchases of property and equipment, purchases of investments, purchase of acquired in-process research and 
development asset and proceeds from the maturity and sale of investments.

Net cash provided by investing activities was $89.1 million for the year ended December 31, 2022 and consisted primarily of $284.5 million of proceeds 
from maturities of investments and $7.4 million of proceeds from sales of available-for-sale securities, partially offset by $164.0 million of cash used in 
purchases of available-for-sale securities, $35.0 million of cash paid for the acquired in-process research and development asset and $3.7 million of cash 
used in purchases of property and equipment. 

Net cash used in investing activities was $427.0 million for the year ended December 31, 2021 and consisted primarily of $484.1 million of cash used in 
purchases of available-for-sale securities, $25.0 million of cash paid for the acquired in-process research and development asset and $5.2 million of cash 
used in purchases of property and equipment, partially offset by $83.1 million of proceeds from maturities of investments and $4.2 million of proceeds 
from sales of available-for-sale securities. 

94

 
Financing Activities

Financing activities primarily reflect proceeds from strategic financing arrangement, proceeds from the issuance of our common stock, cash paid for payroll 
taxes on restricted stock unit releases, and repayments of our lease liabilities and obligations.

Net cash provided by financing activities was $46.8 million for the year ended December 31, 2022 and consisted primarily of $49.8 million of net proceeds 
from sale of future revenues from NovaQuest, $4.2 million of proceeds from the issuance of common stock upon exercise of stock options and purchases 
under our Employee Share Purchase Plan (“ESPP”), partially offset by $5.2 million of cash paid for payroll taxes on restricted stock unit releases, and $1.5 
million of cash paid for transaction costs related to sale of future revenues.

Net cash used in financing activities was $0.6 million for the year ended December 31, 2021 and consisted primarily of $7.4 million of cash paid for 
payroll taxes on restricted stock unit releases, and $5.5 million of repayments of finance lease liabilities, partially offset by $12.7 million of proceeds from 
the issuance of common stock upon exercise of stock options and purchases under our ESPP.

Material Cash Requirements

We started generating revenue from commercial sales of roxadustat product in China in the third quarter of 2019. Even with the expectation of increases in 
revenue from product sales, we anticipate that we will continue to generate losses for the foreseeable future. Following the CRL for roxadustat in CKD 
anemia in the U.S., we have implemented a cost reduction effort, and as a result, operating expenses have decreased and may continue to decrease in 
certain areas over time compared to our previous internal plans. To date, we have funded certain portions of our research and development and 
manufacturing efforts globally through collaboration partners and capital investment. There is no guarantee that sufficient funds will be available to 
continue to fund these development efforts through commercialization or otherwise. Although AstraZeneca is currently funding all non-China collaboration 
expenses not reimbursed by Astellas, including development of MDS in the U.S., we expect our operating costs and expenses to increase as we invest in 
commercialization of pamrevlumab and development of our other programs. Additionally, we have not been able to agree on a path forward for 
AstraZeneca to fund further roxadustat development in the U.S. for CKD anemia. We are also subject to all the risks related to the development and 
commercialization of novel therapeutics, and we may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that 
may adversely affect our business, such as the COVID-19 pandemic or other factors outlined under Part I, Item 1A “Risk Factors” in this Annual Report. 
We anticipate that we will need substantial additional funding in connection with our continuing operations.

We believe that our existing cash and cash equivalents, short-term and long-term investments and accounts receivable, together with the financing amount 
under the RIFA received in November 2022, will be sufficient to meet our anticipated cash requirements for at least the next 12 months from the date of 
issuance of the financial statements included in this Annual Report. However, we may need additional capital thereafter and our liquidity assumptions 
could turn out to be wrong, or may change over time, and we could utilize our available financial resources sooner than we currently expect. We may elect 
to raise additional funds at any time through equity, equity-linked, debt financing arrangements or from other sources. Our forecast of the period of time 
through which our financial resources will be adequate to support our operations is a forward-looking statement and involves risks and uncertainties, and 
actual results could vary as a result of a number of factors. Our future capital requirements and the adequacy of available funds will depend on many 
factors, including those set forth under Part I, Item 1A “Risk Factors” in this Annual Report. We may not be able to secure additional financing to meet our 
operating requirements on acceptable terms, or at all. If we raise additional funds by issuing equity or equity-linked securities, the ownership of our 
existing stockholders will be diluted. If we raise additional financing by the incurrence of indebtedness, we will be subject to increased fixed payment 
obligations and could also be subject to restrictive covenants, such as limitations on our ability to incur additional debt, and other operating restrictions that 
could adversely impact our ability to conduct our business. If we are unable to obtain needed additional funds, we will have to reduce our operating costs 
and expenses, which would impair our development and commercialization prospects and could otherwise negatively impact our business. 

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Commitments and Contingencies

Contractual Obligations

At December 31, 2022, our material cash requirements from known contractual and other obligations primarily relate to our lease liabilities, non-cancelable 
purchase obligations and liability related to sale of future revenues. Expected timing of those payments are as follows (in thousands):

Lease liabilities
Purchase obligations
Liability related to sale of future revenues

Total payments

Total

Next 12 Months

Beyond 12 Months

Payments Due In

  $

  $

103,741  
53,755  
125,000  
282,496  

  $

  $

13,959     $
27,909    
—    
41,868     $

89,782  
25,846  
125,000  
240,628  

Our lease liabilities are primarily related to our real estate leases for office spaces in the U.S. and China. See Note 6, Leases, to the consolidated financial 
statements for details.

Our outstanding non-cancelable purchase obligations primarily related to manufacturing and supply for pamrevlumab and roxadustat, and other purchases 
and programs. See Note 10, Commitments and Contingencies, to the consolidated financial statements for details.

Under the RIFA with NovaQuest, as of December 31, 2022, we had $49.3 million of liability related to sale of future revenues on the consolidated balance 
sheets. Based on our current estimates of drug product revenue and revenue from milestone payments under the Astellas Agreements, and taking into the 
consideration of the terms under the RIFA, we anticipate to reach a payment cap up to $125.0 million by 2031. See Note 8, Liability Related to Sale of 
Future Revenues, to the consolidated financial statements for details.

Some of our license agreements provide for periodic maintenance fees over specified time periods, as well as payments by us upon the achievement of 
development, regulatory and commercial milestones. As of December 31, 2022, future milestone payments for research and preclinical stage development 
programs consisted of up to approximately $697.9 million in total potential future milestone payments under our license agreements with HiFiBiO (for 
Gal-9 and CCR8), Medarex, Inc. and others. These milestone payments generally become due and payable only upon the achievement of certain 
developmental, clinical, regulatory and/or commercial milestones. The event triggering such payment or obligation has not yet occurred and therefore these 
amounts have been excluded from the table above.

The table above excludes uncertain tax benefits of approximately $72.8 million that are disclosed in Note 13, Income Taxes, to the consolidated financial 
statements because these uncertain tax positions, if recognized, would be an adjustment to the gross deferred tax assets and the corresponding valuation 
allowance, if warranted.

As of December 31, 2022, we have several on-going clinical studies in various stages. Under agreements with various CROs, and clinical study sites, we 
incur expenses related to clinical studies of our product candidates and potential other clinical candidates. The timing and amounts of these disbursements 
are contingent upon the achievement of certain milestones, patient enrollment and services rendered or as expenses are incurred by the CROs or clinical 
trial sites. Therefore, we cannot estimate the potential timing and amount of these payments and they have been excluded from the table above. Although 
our material contracts with CROs are cancelable, we have historically not canceled such contracts.

As of December 31, 2022, our FibroGen Europe Oy (“FibroGen Europe”) subsidiary had $10.1 million of principal outstanding and $6.8 million of interest 
accrued related to loans from the Finnish government (“TEKES” loans), respectively, which have been included as product development obligations on our 
consolidated balance sheet. See Note 9, Product Development Obligations, to the consolidated financial statements for details.

There is no stated maturity date related to these loans and each loan may be forgiven if the research work funded by TEKES does not result in an 
economically profitable business or does not meet its technological objectives. In addition, we are not a guarantor of the TEKES loans, and these loans are 
not repayable by FibroGen Europe until it has distributable funds. We do not expect FibroGen Europe to have such funds in the foreseeable future. For the 
foregoing reasons, we cannot estimate the potential timing and the amounts of repayments (if required) or forgiveness. As a result, the TEKES loans have 
been excluded from the table above.

96

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
   
 
 
Off-Balance Sheet Arrangements

During the year ended December 31, 2022, we did not have any relationships with unconsolidated organizations or financial partnerships, such as 
structured finance or special purpose entities that would have been established for the purpose of facilitating off-balance sheet arrangements.

Indemnification Agreements

We enter into standard indemnification arrangements in the ordinary course of business, including for example, service, manufacturing and collaboration 
agreements. Pursuant to these arrangements, we indemnify, holds harmless, and agree to reimburse the indemnified parties for losses suffered or incurred 
by the indemnified party, including in connection with intellectual property infringement claims by any third party with respect to its technology. The term 
of these indemnification agreements is generally perpetual any time after the execution of the agreement. We have entered into indemnification agreements 
with our directors and officers that may require us to indemnify our directors and officers against liabilities that may arise by reason of their status or 
service as directors or officers to the extent permissible under applicable law. The maximum potential amount of future payments we could be required to 
make under these arrangements is not determinable. 

Recently Issued and Adopted Accounting Guidance

For recently issued accounting guidance, see Note 2, Significant Accounting Policies, to the consolidated financial statements. 

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Our management’s discussion and analysis of our financial condition and results of operations are based on our financial statements, which have been 
prepared in accordance with accounting principles generally accepted in the U.S. The preparation of these financial statements requires us to make 
estimates and judgments that affect the reported amounts of assets, liabilities, and expenses and the disclosure of contingent assets and liabilities in our 
financial statements. We evaluate our estimates and judgments on an ongoing basis. We base our estimates on historical experience, known trends and 
events, and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about 
the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different 
assumptions or conditions.

While our significant accounting policies are described in more detail in the notes to our financial statements appearing elsewhere in this Annual Report, 
we believe the following accounting policies to be most critical to the judgments and estimates used in the preparation of our financial statements.

Revenue Recognition

Revenues under collaboration agreements

Our collaboration agreements include multiple performance obligations comprised of promised services, or bundles of services, that are distinct. Services 
that are not distinct are combined with other services in the agreement until they form a distinct bundle of services. Our process for identifying performance 
obligations and an enumeration of each obligation for each agreement is outlined in Note 3, Collaboration Agreements, License Agreement and Revenues, 
to our consolidated financial statements. Determining the performance obligations within a collaboration agreement often involves significant judgment 
and is specific to the facts and circumstances contained in each agreement.

We have identified the following material promises under its collaboration agreements: (1) license of FibroGen technology, (2) the performance of co-
development services, including manufacturing of clinical supplies and other services during the development period, and (3) manufacture of commercial 
supply. The evaluation as to whether these promises are distinct, and therefore represent separate performance obligations, is described in more detail in 
Note 3, Collaboration Agreements, License Agreement and Revenues, to our consolidated financial statements.

For revenue recognition purposes, we determine that the terms of our collaboration agreements begin on the effective date and end upon the completion of 
all performance obligations contained in the agreements. In each agreement, the contract term is defined as the period in which parties to the contract have 
present and enforceable rights and obligations. We believe that the existence of what we consider to be substantive termination penalties on the part of the 
counterparty create sufficient incentive for the counterparty to avoid exercising its right to terminate the agreement.

97

 
The transaction price for each collaboration agreement is determined based on the amount of consideration we expect to be entitled for satisfying all 
performance obligations within the agreement. Our collaboration agreements include payments to us of one or more of the following: non-refundable 
upfront license fees; co-development billings; development, regulatory, and commercial milestone payments; payments from sales of API; payments from 
sales of bulk drug product and royalties on net sales of licensed products. 

Upfront license fees are non-contingent and non-refundable in nature and are included in the transaction price at the point when the license fees become 
due to us. We do not assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between 
payment by the customer and the transfer of the promised goods or services to the customer will be one year or less.

Co-development billings resulting from our research and development efforts, which are reimbursable under its collaboration agreements, are considered 
variable consideration. Determining the reimbursable amount of research and development efforts requires detailed analysis of the terms of the 
collaboration agreements and the nature of the research and development efforts incurred. Prior to CKD approval in the third quarter of 2021, determining 
the amount of variable consideration from co-development billings required us to make estimates of future research and development efforts, which 
involves significant judgment. Co-development billings are allocated entirely to the co-development services performance obligation when amounts are 
related specifically to research and development efforts necessary to satisfy the performance obligation, and such an allocation is consistent with the 
allocation objective.

Milestone payments are also considered variable consideration, which requires us to make estimates of when achievement of a particular milestone 
becomes probable. Similar to other forms of variable consideration, milestone payments are included in the transaction price when it becomes probable that 
such inclusion would not result in a significant revenue reversal. Milestones are therefore included in the transaction price when achievement of the 
milestone becomes probable.

For arrangements that include sales-based royalties and for which the license is deemed to be the predominant item to which the royalties relate, we 
recognize 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). To date, royalty revenue resulting from its collaboration arrangements was immaterial.

We allocate the transaction price to performance obligations based on their relative standalone selling price (“SSP”), with the exception of co-development 
billings allocated entirely to co-development services performance obligations. The SSP is determined based on observable prices at which we separately 
sell the products and services. If an SSP is not directly observable, then we will estimate the SSP considering marketing conditions, entity-specific factors, 
and information about the customer or class of customer that is reasonably available. The process for determining SSP involves significant judgment and 
includes consideration of multiple factors, including assumptions related to the market opportunity and the time needed to commercialize a product 
candidate pursuant to the relevant license, estimated direct expenses and other costs, which include the rates normally charged by contract research and 
contract manufacturing organizations for development and manufacturing obligations, and rates that would be charged by qualified outsiders for committee 
services.  

Significant judgment may be required in determining whether a performance obligation is distinct, determining the amount of variable consideration to be 
included in the transaction price, and estimating the SSP of each performance obligation. An enumeration of our significant judgments is outlined in Note 
3, Collaboration Agreements, License Agreement and Revenues, to our consolidated financial statements.

98

 
For each performance obligation identified within an arrangement, we determine the period over which the promised services are transferred and the 
performance obligation is satisfied. Service revenue that was recognized over time was based on progress toward complete satisfaction of the performance 
obligation. For each performance obligation satisfied over time, we assess the proper method to be used for revenue recognition, either an input method to 
measure progress toward the satisfaction of services or an output method of determining the progress of completion of performance obligation. 

Revenue under license agreements

Under a license agreement, if the license to our intellectual property is determined to be distinct from the other performance obligations identified in the 
arrangement, we recognize revenues from upfront license fees allocated to the license when the license is transferred to the licensee and the licensee is able 
to use and benefit from the license. For licenses that are bundled with other promises, we determine whether the combined performance obligation is 
satisfied over time or at a point in time. If the combined performance obligation is satisfied over time, we use judgment in determining the appropriate 
method of measuring progress for purposes of recognizing revenue from the up-front license fees. We evaluate the measure of progress each reporting 
period and, if necessary, adjust the measure of performance and related revenue recognition.

Product revenue, net

Product revenue, net consists of revenues from sales of roxadustat commercial product to Falikang, and directly to pharmaceutical distributors located in 
one province in China that are not covered by Falikang. Falikang is jointly owned by AstraZeneca and FibroGen Beijing. We are not the primary 
beneficiary of Falikang for accounting purposes, as AstraZeneca is the final decision maker for all the roxadustat commercialization activities, and we lack 
the power criterion to direct the activities of Falikang (see Note 4, Equity method investment - Variable Interest Entity, to our consolidated financial 
statements). 

Sales to Falikang

Falikang became fully operational in January 2021, at which time FibroGen Beijing began selling roxadustat commercial product to Falikang. Falikang is 
FibroGen Beijing’s primary customer in China and substantially all roxadustat product sales to distributors in China are made by Falikang. Falikang bears
inventory risk once it receives and accepts the product from FibroGen Beijing, and is responsible for delivering product to its distributors.

The  promises  identified  under  the  AstraZeneca  China  Agreement  (as  defined  in  Note  3,  Collaboration  Agreements,  License  Agreement  and  Revenues), 
including the license, co-development services and manufacturing of commercial supplies have been bundled into a single performance obligation (“China 
performance obligation”). Amounts of the transaction price allocable to this performance obligation under our agreements with AstraZeneca as outlined in 
Note 3, Collaboration Agreements, License Agreement and Revenues, are deferred until control of the manufactured commercial product is transferred to 
AstraZeneca.

The initiation of roxadustat sales to Falikang marked the beginning of the China performance obligation. Revenue is recognized at a point in time when 
control of roxadustat commercial product is transferred to Falikang. Revenue is recognized based on the estimated transaction price per unit and actual 
quantity of product delivered during the reporting period. Specifically, the transaction price per unit is determined based on the overall transaction price 
over the total estimated sales quantity for the estimated performance period in which we determined it is likely those sales would occur. The price per unit 
is subject to reassessment on a quarterly basis, which may result in adjustments due to changes in estimates.

The overall transaction price for FibroGen Beijing’s product sales to Falikang includes the following elements of consideration: 

●

●

Non-refundable  upfront  license  fees;  development,  regulatory,  and  commercial  milestone  payments  based  on  the  AstraZeneca  China  Agreement 
allocated to the China performance obligation;

Co-development billings resulting from our research and development efforts, which are reimbursable under the AstraZeneca China Agreement;

99

 
●

●

Interim profit/loss share between FibroGen Beijing and AstraZeneca from April 1, 2020 through December 31, 2020; and

Net transaction price from product sales to Falikang from January 1, 2021 onwards. The net transaction price includes the following elements: 

o

o

Gross transaction price: The gross transaction price is based on a percentage of Falikang’s net sales to its distributors, which takes into 
account Falikang’s operating expenses and its payments to AstraZeneca for roxadustat sales and marketing efforts, capped at a percentage of 
Falikang’s net roxadustat sales. 

Profit share: The gross transaction price is then adjusted for an estimated amount to achieve the 50/50 profit share from current period 
roxadustat net sales in China. The adjustments to date have been a reduction to the transaction price and the related accounts receivable from 
Falikang. 

The non-refundable upfront license fees constitute a fixed consideration. The remainder of the above are variable consideration components, which may be 
constrained, and included in the transaction price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue 
recognized will not occur in a future period when the uncertainty associated with the variable consideration is subsequently resolved. The calculation of the 
above  variable  consideration  includes  significant  assumptions  such  as  total  sales  quantity,  performance  period,  gross  transaction  price  and  profit  share, 
which require significant judgment.

We defer any net transaction price in excess of the revenue recognized, and recognize it over future periods as the performance obligations are satisfied.

Direct Sales to Distributors

We sell roxadustat in China directly to a number of pharmaceutical distributors located in one province in China that are not covered by Falikang. These 
pharmaceutical  distributors  are  our  customers.  Hospitals  order  roxadustat  through  a  distributor  and  we  ship  the  product  directly  to  the  distributors.  The 
delivery of roxadustat to a distributor represents a single performance obligation. Distributors are responsible for delivering product to end users, primarily 
hospitals. Distributors bear inventory risk once they receive and accept the product. We recognize product revenue when control of the promised good is 
transferred to the customer in an amount that reflects the consideration that we expect to be entitled to in exchange for the product.

The period between the transfer of control of the promised goods and when we receive payment is based on 60-day payment terms. As such, we do not 
adjust product revenue for the effects of a significant financing component.

We record product revenue at the net sales prices that includes the following estimates of variable consideration:

●

●

Price  adjustment:  When  China’s  National  Healthcare  Security  Administration  releases  price  guidance  for  roxadustat  under  the  National 
Reimbursement Drug List, any channel inventories that have not been sold through by distributors, or to patients by hospitals and retailers, would be 
eligible for a price adjustment under the price protection. The price adjustment is calculated based on estimated channel inventory levels;

Contractual sales rebate: The contractual sales rebate is calculated based on the stated percentage of gross sales by each distributor in the distribution 
agreement entered between FibroGen and each distributor. The contractual sales rebate is recorded as a reduction to revenue at the point of sale to 
the distributor;

100

 
●

●

●

Non-key account hospital listing award: A one-time fixed-amount award is offered to a distributor who successfully lists the product with an eligible 
hospital, and who meets certain requirements. For the year ended December 31, 2020, the non-key account hospital listing award was capitalized 
when the distributor meets eligibility requirements, and amortized as reduction to product revenue over future sales orders made by the distributor 
until exhausted. For the year ended December 31, 2021, the non-key account hospital listing award was immaterial and recorded as a reduction to 
revenue when distributor meets eligibility requirements;

Other discounts and rebates, including key account hospital sales rebate and transfer fee discount, are generally based on a percentage of eligible 
gross sales made by the distributor and recorded as a reduction to revenue at the point of sale to the distributor; and

Sales  returns:  Distributors  can  request  to  return  product  to  us  only  due  to  quality  issues  or  for  product  purchased  within  one  year  prior  to  the 
product’s expiration date.

We calculate the above variable consideration based on gross sales to the distributor, or estimate it utilizing best available information from the distributor, 
maximum known exposures and other available information including estimated channel inventory levels and estimated sales made by the distributor to 
hospitals, which involves significant judgment.

The above rebates and discounts all together are eligible to be applied against the distributor’s future sales order, limited to certain maximums until such
rebates and discounts are exhausted. We record these rebates and discounts as contract liabilities at the time they become eligible and in the same period 
that the related revenue is recorded. Due to the distributor’s legal right to offset, at each balance sheet date, we present the liability for rebates and discounts 
as reductions of gross accounts receivable from the distributor, or as a current liability to the distributor to the extent that the total amount exceeds the gross 
accounts receivable or when we expect to settle the discount in cash. We calculate the distributor’s legal right of offset at the individual distributor level.

Drug product revenue

Drug product revenue includes commercial-grade API or bulk drug product sales to AstraZeneca and Astellas in support of pre-commercial preparation 
prior to the NDA or Marketing Authorization Application approval, and to Astellas for ongoing commercial launch in Japan and Europe. We recognize 
drug product revenue when we fulfill the inventory transfer obligations. 

The amount of variable consideration that is included in the transaction price may be constrained, and we include it in the drug product revenue only to the 
extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period when the 
uncertainty associated with the variable consideration is subsequently resolved. Estimating variable consideration and the related constraint requires the use 
of significant management judgment. We review new information that may affect its variable consideration estimate at every reporting period and records 
revenue adjustment, if certain and material. Actual amounts of consideration ultimately received in the future may differ from our estimates, for which we 
will adjust these estimates and affect the drug product revenue in the period such variances become known. 

As each of our collaboration agreements provide for annual true up to the considerations paid for our commercial supplies, we will re-evaluate the 
transaction price in each reporting period and record adjustment to revenue as uncertain events are resolved or other changes in circumstances occur.

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ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

We are exposed to market risk in the ordinary course of our business. Market risk represents the risk of loss that may impact our financial position due to 
adverse changes in financial market prices and rates. 

Our market risk exposure is primarily a result of fluctuations in foreign currency exchange rates. Currently, the functional currency of our subsidiaries, 
FibroGen Europe Oy and FibroGen Beijing, is the local currency. Our consolidated results of operations are reported in U.S. Dollars. Our revenues and 
operating costs and expenses are denominated in the currencies of the countries in which our operations are located, which are primarily in the U.S. and 
China. Therefore, our consolidated results of operations and cash flows are subject to fluctuations due to changes in foreign currency exchange rates and 
may be adversely affected in the future due to changes in foreign exchange rates.

As of December 31, 2022, we did not have material financial assets and liabilities denominated in foreign currencies that are subject to fluctuation in the 
exchange rate with the U.S. dollar. Therefore, our financial assets and liabilities are not currently subject to significant foreign currency risk.

The primary objective of our investment activities is to preserve our capital to fund our operations. We also seek to maximize income from our cash and 
cash equivalents without assuming significant risk. To achieve our objectives, we invest our non-operating cash and cash equivalents primarily in 
commercial paper and money market funds as of December 31, 2022. Given the nature of our investments as of December 31, 2022, we believe that our 
exposure to interest rate risk is not significant. We actively monitor changes in interest rates.

To date, we have not entered into any hedging arrangements with respect to foreign currency risk or other derivative financial instruments.

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ITEM 8. CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 

FibroGen, Inc.

Report of Independent Registered Public Accounting Firm  (PCAOB ID 238)

Financial Statements:

Consolidated Balance Sheets

Consolidated Statements of Operations

Consolidated Statements of Comprehensive Loss

Consolidated Statements of Changes in Stockholders’ Equity (Deficit)

Consolidated Statements of Cash Flows

Notes to Consolidated Financial Statements

Financial Statement Schedule:

II Valuation and Qualifying Accounts for each of the three years ended December 31, 2022

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158

 
 
  
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
To the Board of Directors and Stockholders of FibroGen, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

Report of Independent Registered Public Accounting Firm

We have audited the accompanying consolidated balance sheets of FibroGen, Inc. and its subsidiaries (the “Company”) as of December 31, 2022 and 2021, 
and the related consolidated statements of operations, of comprehensive loss, of changes in stockholders’ equity (deficit) and of cash flows for each of the 
three years in the period ended December 31, 2022, including the related notes and financial statement schedule listed in the accompanying index 
(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 9A. 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.

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.

104

 
Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was 
communicated or required to be communicated to the audit committee and that (i) relates 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 matter below, 
providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Determining the Transaction Price for Product Revenue Recognition for Sales to Beijing Falikang Pharmaceutical Co., Ltd. (“Falikang”)

As described in Notes 2 and 3 to the consolidated financial statements, with respect to the roxadustat commercial product, revenue is recognized at a point 
in time when control of the product is transferred to Falikang. Total product revenue, net recognized related to sales to Falikang was $71.2 million for the 
year ended December 31, 2022. Revenue is recognized based on the estimated transaction price per unit and the actual quantity of product delivered to 
Falikang during the reporting period. The estimated transaction price per unit is determined based on the overall transaction price over the total estimated 
sales quantity for the estimated performance period in which management determined it is likely those sales would occur. Management applied significant 
judgment in determining the transaction price per unit, which involved the use of significant assumptions such as (i) the estimated total gross transaction 
price and profit share, (ii) the estimated total sales quantity, and (iii) the estimated performance period in which the Company determined it is likely those 
sales would occur. 

The principal considerations for our determination that performing procedures relating to determining the transaction price for product revenue recognition 
for sales to Falikang is a critical audit matter are the significant judgment by management when determining the transaction price per unit, which 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 
the estimated total gross transaction price, estimated total sales quantity, and estimated performance period over which the Company determined it is likely 
those sales would occur.

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 revenue recognition, including controls over the 
determination of the transaction price per unit for sales to Falikang. These procedures also included, among others, testing management’s process for 
determining the transaction price per unit, which included evaluating the appropriateness of the method, testing the completeness and accuracy of the data 
used in the method, and evaluating the reasonableness of significant assumptions related to the estimated total gross transaction price, estimated total sales 
quantity, and estimated performance period over which the Company determined it is likely those sales would occur. Evaluating the reasonableness of the 
significant assumptions used by management involved evaluating whether the assumptions were reasonable considering (i) the current and historical 
transaction price and quantity, (ii) the consistency with external market, industry and regulatory data, (iii) whether these assumptions were consistent with 
evidence obtained in other areas of the audit, and (iv) patent expiration and market exclusivity.

/s/ PricewaterhouseCoopers LLP 
San Jose, California
February 27, 2023

We have served as the Company’s auditor since 2000.

105

 
FIBROGEN, INC.
CONSOLIDATED BALANCE SHEETS
(In thousands, except per share amounts)

December 31, 2022

December 31, 2021

Assets
Current assets:

Cash and cash equivalents
Short-term investments
Accounts receivable, net ($12,088 and $10,930 from related parties)
Inventories
Prepaid expenses and other current assets

Total current assets
Restricted time deposits
Long-term investments
Property and equipment, net
Equity method investment in unconsolidated variable interest entity
Operating lease right-of-use assets
Other assets

Total assets

Liabilities, stockholders’ equity (deficit) and non-controlling interests
Current liabilities:

Accounts payable
Accrued and other current liabilities ($63,886 and $4 to a related party)
Deferred revenue ($9,259 and $3,201 to related parties)
Operating lease liabilities, current

Total current liabilities
Product development obligations
Deferred revenue, net of current ($31,044 and $25,891 to a related party)
Operating lease liabilities, non-current
Liability related to sale of future revenues, non-current
Other long-term liabilities
Total liabilities

Commitments and Contingencies (Note 10)

Stockholders’ equity (deficit):

Preferred stock, $0.01 par value; 125,000 shares authorized; no shares issued 
   and outstanding at December 31, 2022 and 2021
Common stock, $0.01 par value; 225,000 shares authorized at December 31, 2022
   and 2021; 94,166 and 92,881 shares issued and outstanding at 
  December 31, 2022 and 2021
Additional paid-in capital
Accumulated other comprehensive loss
Accumulated deficit

Total stockholders’ equity (deficit)
Non-controlling interests
Total equity (deficit)
Total liabilities, stockholders’ equity (deficit) and non-controlling interests

  $

  $

155,700     $
266,308    
16,299    
40,436    
14,083    
492,826    
2,072    
4,348    
20,605    
5,061    
79,893    
5,282    
610,087     $

  $

30,758     $

219,773    
12,739  
10,292    
273,562    
16,917    

185,722  

79,593    
49,333    
6,440    
611,567    

171,223  
233,967  
17,401  
31,015  
20,453  
474,059  
2,072  
167,796  
28,277  
3,825  
91,112  
6,680  
773,821  

26,097  
172,599  
15,857  
10,944  
225,497  
17,613  
186,801  
88,776  
—  
26,021  
544,708  

—    

—  

942    
1,541,019    
(5,720 )  
(1,557,688 )  
(21,447 )  
19,967    
(1,480 )  
610,087     $

929  
1,476,414  
(4,163 )
(1,264,034 )
209,146  
19,967  
229,113  
773,821  

  $

The accompanying notes are an integral part of these Consolidated Financial Statements.

106

 
 
 
 
   
 
 
     
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
     
   
 
     
   
 
     
   
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
  
 
     
   
 
     
   
  
 
     
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FIBROGEN, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share amounts)

Revenue:

License revenue (includes $22,590, $108,434
   and $14,323 from a related party)
Development and other revenue (includes $9,908, $21,928
   and $19,174 from a related party)
Product revenue, net (includes $71,167, $35,568
   and $0 from a related party)
Drug product revenue (includes $11,086, $3,186
   and $4,281 from a related party)

Total revenue

Operating costs and expenses:

Cost of goods sold
Research and development
Selling, general and administrative

Total operating costs and expenses

Loss from operations

Interest and other, net
Interest expense
Interest income and other income (expenses), net

Total interest and other, net

Loss before income taxes

Provision for income taxes
Investment income (loss) in unconsolidated variable 
   interest entity

Net loss

Net loss per share - basic and diluted

2022

Years Ended December 31,
2021

2020

$

22,590  

$

116,434  

$

14,323  

24,189    

82,869    

11,086    
140,734    

20,280    
296,791    
124,688    
441,759    
(301,025 )  

(1,440 )  
7,596    
6,156    

(294,869 )  
358    

70,275    

47,638    

962    
235,309    

12,871    
387,043    
123,925    
523,839    
(288,530 )  

(1,075 )  
(1,078 )  
(2,153 )  

(290,683 )  
347    

1,573    
(293,654 )   $

1,007    
(290,023 )   $

80,592  

72,498  

8,906  
176,319  

8,869  
252,924  
106,406  
368,199  
(191,880 )

(2,402 )
5,553  
3,151  

(188,729 )
360  

(202 )
(189,291 )

(3.14 )   $

(3.14 )   $

(2.11 )

  $

  $

Weighted average number of common shares used to calculate
   net loss per share - basic and diluted

93,582    

92,349    

89,854  

The accompanying notes are an integral part of these Consolidated Financial Statements.

107

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
     
     
   
 
 
 
 
 
 
FIBROGEN, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
(In thousands)

Net loss
Other comprehensive income (loss):

Foreign currency translation adjustments
Available-for-sale investments:

Unrealized gain (loss) on investments, net of tax effect

Other comprehensive gain (loss), net of taxes
Comprehensive loss

2022

Years Ended December 31,
2021

2020

  $

(293,654 )   $

(290,023 )   $

(189,291 )

75  

1,235  

(3,207 )

(1,632 )    
(1,557 )    
(295,211 )   $

(899 )    
336  
(289,687 )   $

(545 )
(3,752 )
(193,043 )

  $

The accompanying notes are an integral part of these Consolidated Financial Statements.

108

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
   
   
 
     
     
   
 
 
 
 
   
 
 
Balance at December 31,
   2019
Net loss
Change in unrealized gain
   or loss on investments
Foreign currency 
   translation adjustments
Shares issued from stock
   plans, net of payroll 
   taxes paid
Stock-based compensation
Balance at December 31,
   2020
Net loss
Change in unrealized gain
   or loss on investments
Foreign currency 
   translation adjustments
Shares issued from stock
   plans, net of payroll 
   taxes paid
Stock-based compensation
Conversion of subsidiary’s 
   convertible note payable
  (Note 11)
Balance at December 31,
   2021
Net loss
Change in unrealized gain
   or loss on investments
Foreign currency 
   translation adjustments
Shares issued from stock
   plans, net of payroll 
   taxes paid
Stock-based compensation
Balance at December 31,
   2022

FIBROGEN, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (DEFICIT)
(In thousands, except share data)

Common Stock

Shares

Amount

Additional 
Paid-in

Capital

Accumulated
Other
Comprehensive

Loss

Accumulated

Deficit

Non
Controlling

Interests

Total

87,657,489  
—  

  $

  $

877  
—  

1,300,725  
—  

  $

(747 )   $

—  

(784,720 )   $
(189,291 )  

19,271  
—  

  $

535,406  
(189,291 )

—  

—  

3,783,144  
—  

91,440,633  

—  

—  

—  

1,439,900  
—  

—  

—  

—  

37  
—  

914  

—  

—  

—  

15  
—  

—  

—  

—  

26,329  
72,720  

1,399,774  

—  

—  

—  

5,479  
71,161  

—  

(545 )  

(3,207 )  

—  
—  

(4,499 )  
—  

(899 )  

1,235  

—  
—  

—  

—  

—  

—  
—  

(974,011 )  
(290,023 )  

—  

—  

—  
—  

—  

92,880,533  

  $

929  

  $

1,476,414  

  $

—  

—  

—  

1,285,553  
—  

—  

—  

—  

13  
—  

—  

—  

—  

(996 )  

65,601  

(4,163 )   $
—  

(1,264,034 )   $
(293,654 )  

(1,632 )  

75  

—  
—  

—  

—  

—  
—  

—  

—  

—  
—  

19,271  

—  

—  

—  

—  
—  

696  

19,967  

  $

—  

—  

—  

—  
—  

94,166,086  

  $

942  

  $

1,541,019  

  $

(5,720 )   $

(1,557,688 )   $

19,967  

  $

The accompanying notes are an integral part of these Consolidated Financial Statements.

(545 )

(3,207 )

26,366  
72,720  

441,449  

(290,023 )

(899 )

1,235  

5,494  
71,161  

696  

229,113  

(293,654 )

(1,632 )

75  

(983 )
65,601  

(1,480 )

109

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FIBROGEN, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)

Operating activities
Net loss
Adjustments to reconcile net loss to net cash provided by (used in) 
   operating activities:
Depreciation
Amortization of finance lease right-of-use assets
Net accretion of premium and discount on investments
Unrealized loss on equity investments
Investment income in unconsolidated variable interest entity
(Gain) / loss on disposal of property and equipment
Stock-based compensation
Expense for acquired in-process research and development asset
Non-cash interest expense related to sale of future revenues
Realized loss on sales of available-for-sale securities

Changes in operating assets and liabilities:

Accounts receivable, net ($(1,158), $(6,803) and $718 from related parties)
Inventories
Prepaid expenses and other current assets ($0, $889 and $124,321 
   from a related party)
Operating lease right-of-use assets
Other assets
Accounts payable ($0, $(1,118) and $1,118 from a related party)
Accrued and other liabilities ($63,882, $(20) and $(36,859) from 
   a related party)
Operating lease liabilities, current
Deferred revenue ($11,211, $21,549 and $7,169 from related parties)
Accrued interest for finance lease liabilities
Operating lease liabilities, non-current
Other long-term liabilities

Net cash provided by (used in) operating activities

Investing activities
Purchases of property and equipment
Payment made for acquired in-process research and development asset
Payment made for investment in unconsolidated variable interest entity
Proceeds from equity transfer of unconsolidated variable interest entity
Proceeds from sale of property and equipment
Purchases of available-for-sale securities
Proceeds from sales of available-for-sale securities
Proceeds from maturities of investments

Net cash provided by (used in) investing activities

Financing activities
Repayments of finance lease liabilities
Repayments of lease obligations
Cash paid for payroll taxes on restricted stock unit releases
Proceeds from sale of future revenues, net of issuance costs
Cash paid for transaction costs related to sale of future revenues
Proceeds from issuance of common stock

Net cash provided by (used in) financing activities

Effect of exchange rate change on cash and cash equivalents
Net increase (decrease) in cash and cash equivalents
Total cash and cash equivalents at beginning of period
Total cash and cash equivalents at end of period

Supplemental cash flow information:
Interest payments
Balance in accounts payable and accrued liabilities related to purchases of
   property and equipment
Balance in accrued liabilities related to acquired in-process research 
   and development asset
Balance in other receivables related to stock option exercise
Conversion of subsidiary’s convertible note payable to non-controlling interests

2022

Years Ended December 31,
2021

2020

  $

(293,654 )   $

(290,023 )   $

(189,291 )

10,017  
587  
1,619  
—  
(1,573 )  
(1 )  

65,601  
—  
1,036  
5  

765  
(10,999 )  

4,916  
10,908  
263  
5,909  

90,556  

(547 )  
(4,130 )  
33  
(8,994 )  
(18,250 )  
(145,933 )  

(3,741 )  
(35,000 )  

—  
—  
6  

(164,023 )  
7,382  
284,492  
89,116  

(135 )  
(403 )  
(5,167 )  
49,750  
(1,453 )  
4,184  
46,776  
(5,482 )  
(15,523 )  
171,223  
155,700  

  $

10,170  
4,639  
2,482  
30  
(1,007 )  
233  
71,161  
60,000  
—  
—  

25,180  
(14,158 )  

(9,854 )  
4,209  
(4,412 )  
805  

16,380  
503  
57,637  

(75 )  
(4,043 )  
(12,089 )  
(82,232 )  

(5,186 )  
(25,000 )  

—  
—  
—  

(484,144 )  
4,214  
83,144  
(426,972 )  

(5,489 )  
(403 )  
(7,372 )  
—  
—  
12,701  

(563 )  
2,597  
(507,170 )  
678,393  
171,223  

  $

104  

  $

94  

  $

428  

—  
—  
—  

  $

1,009  

35,000  
165  
696  

  $

11,678  
10,369  
103  
—  
202  
933  
72,720  
—  
—  
258  

(11,973 )
(9,175 )

123,492  
(24 )
5,843  
17,731  

30,914  
134  
45,077  
(177 )
(143 )
(27,069 )
81,602  

(3,994 )
—  
(3,896 )
1,063  
—  
(8,192 )
10,606  
456,900  
452,487  

(12,620 )
(403 )
(11,463 )
—  
—  
37,829  
13,343  
4,695  
552,127  
126,266  
678,393  

135  

884  

—  
—  
—  

  $

  $

  $

The accompanying notes are an integral part of these Consolidated Financial Statements.

110

 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
   
   
 
FIBROGEN, INC.
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

1. The Company

FibroGen, Inc. (“FibroGen” or the “Company”) is headquartered in San Francisco, California, with subsidiary offices in Beijing and Shanghai, People’s 
Republic of China (“China”). FibroGen is a leading biopharmaceutical company developing and commercializing a pipeline of first-in-class therapeutics. 
The Company applies its pioneering expertise in hypoxia-inducible factor (“HIF”) biology, 2-oxoglutarate enzymology, and connective tissue growth factor 
to advance innovative medicines for the treatment of anemia, fibrotic disease, and cancer. 

Pamrevlumab, a human monoclonal antibody targeting connective tissue growth factor, is in Phase 3 clinical development for the treatment of idiopathic 
pulmonary fibrosis, locally advanced unresectable pancreatic cancer and Duchenne muscular dystrophy. To date, the Company has retained exclusive 
worldwide rights for pamrevlumab.

Roxadustat is an oral small molecule inhibitor of HIF prolyl hydroxylase activity. Roxadustat (爱瑞卓®, EVRENZOTM) is approved in China, Europe, 
Japan, and numerous other countries for the treatment of anemia in chronic kidney disease (“CKD”) for patients who are on dialysis and not on dialysis. 

Roxadustat is in Phase 3 clinical development for: anemia associated with myelodysplastic syndromes, in the U.S. and Europe, and chemotherapy-induced 
anemia in China.

The Company has a pipeline of late-stage clinical programs as well as preclinical drug candidates at various stages of development that include both small 
molecules and biologics. FibroGen’s goal is to build a diversified pipeline with novel drugs that will address unmet patient needs in oncology, immunology, 
and fibrosis.

2.

Summary of Significant Accounting Policies

Basis of Presentation 

The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”). The 
consolidated financial statements include the accounts of the Company, its wholly owned subsidiaries and its majority-owned subsidiaries, FibroGen 
Europe and FibroGen China Anemia Holdings, Ltd. (“FibroGen Cayman”). All inter-company transactions and balances have been eliminated in 
consolidation. For any variable interest entity (“VIE”) for which FibroGen is not the primary beneficiary, the Company uses the equity method of 
accounting.

The Company operates in one reportable segment — the discovery, development and commercialization of novel therapeutics to treat serious unmet 
medical needs. 

Certain prior year amounts have been reclassified for consistency with the current year presentation. These reclassifications had no impact on previously 
reported financial position, results of operations, or cash flows.

Foreign Currency Translation

The reporting currency of the Company and its subsidiaries is the U.S. dollar. 

The functional currency of FibroGen Europe is the Euro. The functional currency of FibroGen (China) Medical Technology Development Co., Ltd. 
(“FibroGen Beijing”) is CNY. As such, monetary assets and liabilities of FibroGen Europe and FibroGen Beijing in currencies other than their functional 
currencies are remeasured using exchange rates in effect at the end of the period. The assets and liabilities of FibroGen Europe and FibroGen Beijing are 
translated to U.S. dollars at exchange rates in effect at the balance sheet date. All income statement accounts are translated at monthly average exchange 
rates. Resulting foreign currency translation adjustments are recorded directly in accumulated other comprehensive income (loss) as a separate component 
of stockholders’ equity (deficit). 

111

 
 
 
The functional currency of FibroGen, Inc. and all other subsidiaries is the U.S. dollar. Accordingly, monetary assets and liabilities in the non-functional 
currency of these subsidiaries are remeasured using exchange rates in effect at the end of the period. Revenues and costs in local currency are remeasured 
using average exchange rates for the period, except for costs related to those balance sheet items that are remeasured using historical exchange rates. The 
resulting remeasurement gains and losses are included within interest income and other, net in the consolidated statements of operations as incurred and 
have not been material for all periods presented.

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 disclosure of contingent assets and liabilities at the date of the financial statements and reported 
amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions 
include valuation and recognition of revenue, specifically, estimates in variable consideration for drug product sales, and estimates in transaction price per 
unit for the China performance obligation (as defined and discussed under Revenue Recognition below). On an ongoing basis, management reviews these 
estimates and assumptions. Changes in facts and circumstances may alter such estimates and actual results could differ from those estimates.

Concentration of Credit Risk 

The Company is subject to risks associated with concentration of credit for cash and cash equivalents. Outside of short-term operating needs, the majority 
of cash on hand is invested in U.S. treasuries, corporate bonds, commercial paper and money market funds. Any remaining cash is deposited with major 
financial institutions primarily in the U.S., China and the Cayman Islands. At times, such deposits may be in excess of insured limits. The Company has not 
experienced any loss on its deposits of cash and cash equivalents. Included in current assets are significant balances of accounts receivable as follows:

Falikang — Related party
Astellas — Related party
AstraZeneca

December 31,

2022

2021

65 %   
9 %   
16 %   

— %
63 %
34 %

As of December 31, 2022, the aggregate accounts receivable related to roxadustat sales in China from distributors represented 10% of the consolidated 
accounts receivable, with no material balance from any individual distributor. As of December 31, 2021, the accounts receivable related to roxadustat sales 
in China from Beijing Falikang Pharmaceutical Co., Ltd. (“Falikang”) and direct sales to distributors were not material. 

Other Risks and Uncertainties

The Company’s future results of operations involve a number of risks and uncertainties. Factors that could affect the Company’s future operating results 
and cause actual results to vary materially from expectations include, but are not limited to, the results of clinical trials and the achievement of milestones, 
research developments, actions by regulatory authorities, market acceptance of the Company’s product candidates, competition from other products and 
larger companies, the liquidity and capital resources of the Company, intellectual property protection for the Company's proprietary technology, strategic 
relationships, and dependence on key individuals, suppliers, clinical organization, and other third parties.

Cash, Cash Equivalents and Restricted Time Deposits

The Company considers all highly liquid investments with maturities of three months or less at the date of purchase to be cash equivalents. Cash and cash 
equivalents also include money market accounts and various deposit accounts. Restricted time deposits include an irrevocable standby letter of credit as 
security deposit for a long-term property lease with the Company’s landlord. Restricted time deposits were $2.1 million at each of December 31, 2022 and 
2021. As of December 31, 2022 and 2021, a total of $92.5 million and $91.2 million, respectively, of the Company’s cash and cash equivalents was held 
outside of the U.S. in the Company’s foreign subsidiaries to be used primarily for the Company’s China operations.

112

 
 
 
 
 
 
 
   
 
   
   
   
 
Investments

As of December 31, 2022, the Company’s investments consist primarily of diversified bonds, commercial paper, and money market funds. Those 
investments with original maturities of greater than three months and remaining maturities of less than 12 months (365 days) are considered short-term 
investments. Those investments with maturities greater than 12 months (365 days) from the balance sheet date are considered long-term investments. When 
such investments are held, the Company’s investments classified as available-for-sale are recorded at fair value based upon quoted market prices at period 
end. Unrealized gains and losses for available-for-sale debt investments that are deemed temporary in nature are recorded in accumulated other 
comprehensive income (loss) as a separate component of stockholder’ equity. Marketable equity securities are equity securities with readily determinable 
fair value, and are measured and recorded at fair value. Realized and unrealized gains or losses resulting from changes in value and sale of the Company’s 
marketable equity investments are recorded in other income (expenses) in the consolidated statement of operations.

A decline in the fair value of any security below cost that is deemed other than temporary results in a charge to earnings and the corresponding 
establishment of a new cost basis for the security. Premiums and discounts are amortized (accreted) over the life of the related security as an adjustment to 
its yield. Dividend and interest income are recognized when earned. Realized gains and losses are included in earnings and are derived using the specific 
identification method for determining the cost of investments sold.

Trade accounts receivable

The allowance for credit losses is based on the Company’s assessment of the collectability of customer accounts. The Company makes estimates of 
expected credit losses for the allowance for doubtful accounts by considering factors such as historical experience, credit quality, the age of the accounts 
receivable balances, current economic and regulatory conditions that may affect a customer’s ability to pay, and estimates of expected future losses. The 
Company’s bad debt expense for the years ended December 31, 2022, 2021 and 2020 and the allowance for doubtful accounts as of December 31, 2022 and 
2021 were immaterial.

Credit losses – Available-for-sale debt securities

The Company periodically assesses its available-for-sale investments for other-than-temporary impairment. For debt securities in an unrealized loss 
position, the Company first considers its intent to sell, or whether it is more likely than not that the Company will be required to sell the debt securities 
before recovery of their amortized cost basis. If either of these criteria are met, the amortized cost basis of such debt securities is written down to fair value 
through interest and other, net. 

For debt securities in an unrealized loss position that do not meet the aforementioned criteria, the Company assesses whether the decline in the fair value of 
such debt securities has resulted from credit losses or other factors. The Company considers the extent to which fair value is less than amortized cost, any 
changes to the rating of the security by a rating agency, and any adverse conditions specifically related to the securities, among other factors. If this 
assessment indicates that a credit loss may exist, the Company then compares the present value of cash flows expected to be collected from such securities 
to their amortized cost basis. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an 
allowance for credit losses is recorded through interest and other, net, limited by the amount that the fair value is less than the amortized cost basis. Any 
additional impairment not recorded through an allowance for credit losses is recognized in other comprehensive income.

Changes in the allowance for credit losses are recorded as provision for, or reversal of, credit loss expense. Losses are charged against the allowance when 
the Company believes that an available-for-sale security is confirmed uncollectable or when either of the criteria regarding intent or requirement to sell is 
met.

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Inventories

Inventories are stated at the lower of cost or net realizable value, on a first-in, first-out, or FIFO, basis. The cost of the Company’s inventories in China is 
determined using full absorption and standard costing method. The Company reviews the standard cost of raw materials, work-in-process and finished 
goods annually and more often as appropriate to ensure that its inventories approximate current actual cost. The cost of the Company’s inventories in the 
U.S. uses actual costs to determine its cost basis. The cost of inventories includes direct material cost, direct labor and manufacturing overhead. 

When the technical feasibility of the Company’s future commercialization is considered probable and the future economic benefit is expected to be 
realized, based on management’s judgment, the Company capitalizes pre-launch inventory costs prior to regulatory approval. A number of factors are 
considered, including the status in the validation process in significant jurisdictions, regulatory application and approval process, and terms and condition 
for future sale of such inventory or future alternative use. The pre-launch inventory cost includes purchase cost of raw materials, cost paid to contract 
manufacturers for inventory manufacturing, freight and custom charges, and certain direct internal labor and overhead expenses.

The Company periodically reviews its inventories to identify obsolete, slow-moving, excess or otherwise unsaleable items. If obsolete, excess or unsaleable 
items are observed and there are no alternate uses for the inventory, an inventory valuation adjustment is recorded through a charge to cost of goods sold on 
the Company’s consolidated statements of operations.  Inventory valuation adjustments require judgment including consideration of many factors, such as 
estimates of future product demand and product expiration period, among others.

Property and Equipment

Property and equipment are recorded at cost and depreciated over their estimated useful lives using the straight-line method. Computer equipment, 
laboratory equipment, machinery and furniture and fixtures are depreciated over three to five years. Leasehold improvements are recorded at cost and 
amortized over the term of the lease or their useful life, whichever is shorter.

Equity method investment - Variable Interest Entity

Under the Accounting Standards Codification (“ASC”) 810, Consolidation (“ASC 810”), when the Company obtains an economic interest in an entity, it 
evaluates the entity to determine if it should be deemed a VIE, and, if so, whether the Company is the primary beneficiary and is therefore required to 
consolidate the VIE, based on significant judgment whether the Company (i) has the power to direct the activities that most significantly impact the 
economic performance of the VIE and (ii) has the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant 
to the VIE. 

On an ongoing basis, the Company re-evaluates the VIE assessment based on potential changes in facts and circumstances, including but not limited to, the 
shareholder loans to the entity and the execution of any future significant agreements between the entity and its shareholders and/or other third parties.

Leases

The Company determines if an arrangement is or contains a lease at inception date when it is given control of the underlying assets. The Company elected 
the practical expedient not to apply the lease recognition and measurement requirements to short-term leases, which is any lease with a term of 12 months 
or less as of the commencement date that does not include an option to purchase the underlying asset that the lessee is reasonably certain to exercise. 

Lease right-of-use (“ROU”) assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term 
at commencement date. As its leases do not typically provide an implicit rate, the Company uses its incremental borrowing rate based on the information 
available at commencement date in determining the present value of future payments. The Company reassesses the incremental borrowing rate periodically 
for application to any new leases or lease modifications, which approximates the rate at which the Company would borrow, on a secured basis, in the 
country where the lease was executed. For any lease modification, the Company reassesses the lease classification, remeasures the related lease liability 
using an updated discount rate, and adjusts the related ROU asset under the lease modification guidance under the ASC 842.

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Lease ROU assets include any lease payments made and initial direct costs incurred. The Company has lease agreements with lease and non-lease 
components. The Company generally accounts for each lease component separately from the non-lease components, and excludes all non-lease components 
from the calculation of minimum lease payments in measuring the ROU asset and lease liability. 

The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. 
Lease expense for minimum lease payments is recognized on a straight-line basis over the lease terms. 

Regarding leases denominated in a foreign currency, the related ROU assets and the corresponding ROU asset amortization costs are remeasured using the 
exchange rate in effect at the date of initial recognition; the related lease liabilities are remeasured using the exchange rate in effect at the end of the 
reporting period; the lease costs and interest expenses related to lease liability accretion are remeasured using average exchange rates for the reporting 
period.

Finance leases are included in finance lease ROU assets, finance lease liabilities, current and non-current on the Company’s consolidated balance sheets. 
Operating leases are included in operating lease ROU assets, operating lease liabilities, current and non-current on the Company’s consolidated balance 
sheets.

Impairment of Long-Lived Assets

The Company continually evaluates whether events or circumstances have occurred that indicate that the estimated remaining useful life of its long-lived 
assets may warrant revision or that the carrying value of these assets may be impaired. If the Company determines that an impairment trigger has been met, 
the Company evaluates the realizability of its long-lived assets (asset group) based on a comparison of projected undiscounted cash flows from use and 
eventual disposition with the carrying value of the related asset. Any write-downs (which are measured based on the difference between the fair value and 
the carrying value of the asset) are treated as permanent reductions in the carrying amount of the assets (asset group). Based on this evaluation, the 
Company believes that, as of each of the balance sheet dates presented, none of the Company’s long-lived assets were impaired. The Company had no 
impairment of long-lived assets for the years ended December 31, 2022 and 2021. The Company’s impairment of long-lived assets for the year ended 
December 31, 2020 was immaterial.

Liability Related to Sale of Future Revenues

The Company accounts for the sale of future revenue as a debt, because the risks and rewards to the investor are limited by the terms of the transaction as 
discussed further in Note 8, Liability Related to Sale of Future Revenues. The difference between the carrying amount of the initial liability and the gross 
proceeds received is accounted for as a discount. The Company recognizes interest expense based on an estimated effective annual interest rate, which is 
affected by the amount and timing of revenues recognized and changes in the timing of forecasted revenues. Quarterly, the Company reassesses the 
expected revenues and the timing of such revenues, recalculates the amortization and effective interest rate and adjusts the accounting prospectively as 
needed.

Revenue Recognition

Revenues under collaboration agreements

The Company’s collaboration agreements include multiple performance obligations comprised of promised services, or bundles of services, that are 
distinct. Services that are not distinct are combined with other services in the agreement until they form a distinct bundle of services. The Company’s 
process for identifying performance obligations and an enumeration of each obligation for each agreement is outlined in Note 3, Collaboration Agreements, 
License Agreement and Revenues. Determining the performance obligations within a collaboration agreement often involves significant judgment and is 
specific to the facts and circumstances contained in each agreement.

The Company has identified the following material promises under its collaboration agreements: (1) license of FibroGen technology, (2) the performance 
of co-development services, including manufacturing of clinical supplies and other services during the development period, and (3) manufacture of 
commercial supply. The evaluation as to whether these promises are distinct, and therefore represent separate performance obligations, is described in more 
detail in Note 3, Collaboration Agreements, License Agreement and Revenues.

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For revenue recognition purposes, the Company determines that the terms of its collaboration agreements begin on the effective date and end upon the 
completion of all performance obligations contained in the agreements. In each agreement, the contract term is defined as the period in which parties to the 
contract have present and enforceable rights and obligations. The Company believes that the existence of what it considers to be substantive termination 
penalties on the part of the counterparty create sufficient incentive for the counterparty to avoid exercising its right to terminate the agreement.

The transaction price for each collaboration agreement is determined based on the amount of consideration the Company expects to be entitled for 
satisfying all performance obligations within the agreement. The Company’s collaboration agreements include payments to the Company of one or more of 
the following: non-refundable upfront license fees; co-development billings; development, regulatory, and commercial milestone payments; payments from 
sales of active pharmaceutical ingredient (“API”); payments from sales of bulk drug product and royalties on net sales of licensed products. 

Upfront license fees are non-contingent and non-refundable in nature and are included in the transaction price at the point when the license fees become 
due to the Company. The Company does not assess whether a contract has a significant financing component if the expectation at contract inception is such 
that the period between payment by the customer and the transfer of the promised goods or services to the customer will be one year or less.

Co-development billings resulting from the Company’s research and development efforts, which are reimbursable under its collaboration agreements, are 
considered variable consideration. Determining the reimbursable amount of research and development efforts requires detailed analysis of the terms of the 
collaboration agreements and the nature of the research and development efforts incurred. Prior to CKD approval in the third quarter of 2021, determining 
the amount of variable consideration from co-development billings required the Company to make estimates of future research and development efforts, 
which involved significant judgment. Co-development billings are allocated entirely to the co-development services performance obligation when amounts 
are related specifically to research and development efforts necessary to satisfy the performance obligation, and such an allocation is consistent with the 
allocation objective.

Milestone payments are also considered variable consideration, which requires the Company to make estimates of when achievement of a particular 
milestone becomes probable. Similar to other forms of variable consideration, milestone payments are included in the transaction price when it becomes 
probable that such inclusion would not result in a significant revenue reversal. Milestones are therefore included in the transaction price when achievement 
of the milestone becomes probable.

For arrangements that include sales-based royalties and for which the license is deemed to be the predominant item to which the royalties relate, the 
Company 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). To date, royalty revenue resulting from its collaboration arrangements was immaterial.

The transaction price is allocated to performance obligations based on their relative standalone selling price (“SSP”), with the exception of co-development 
billings allocated entirely to co-development services performance obligations. The SSP is determined based on observable prices at which the Company 
separately sells the products and services. If an SSP is not directly observable, then the Company will estimate the SSP considering marketing conditions, 
entity-specific factors, and information about the customer or class of customer that is reasonably available. The process for determining SSP involves 
significant judgment and includes consideration of multiple factors, including assumptions related to the market opportunity and the time needed to 
commercialize a product candidate pursuant to the relevant license, estimated direct expenses and other costs, which include the rates normally charged by 
contract research and contract manufacturing organizations for development and manufacturing obligations, and rates that would be charged by qualified 
outsiders for committee services.  

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Significant judgment may be required in determining whether a performance obligation is distinct, determining the amount of variable consideration to be 
included in the transaction price, and estimating the SSP of each performance obligation. An enumeration of the Company’s significant judgments is 
outlined in Note 3, Collaboration Agreements, License Agreement and Revenues.

For each performance obligation identified within an arrangement, the Company determines the period over which the promised services are transferred 
and the performance obligation is satisfied. Service revenue that was recognized over time was based on progress toward complete satisfaction of the 
performance obligation. For each performance obligation satisfied over time, the Company assesses the proper method to be used for revenue recognition, 
either an input method to measure progress toward the satisfaction of services or an output method of determining the progress of completion of 
performance obligation. 

Revenue under license agreements

Under a license agreement, if the license to the Company’s intellectual property is determined to be distinct from the other performance obligations 
identified in the arrangement, the Company recognizes revenues from upfront license fees allocated to the license when the license is transferred to the 
licensee and the licensee is able to use and benefit from the license. For licenses that are bundled with other promises, the Company determines whether the 
combined performance obligation is satisfied over time or at a point in time. If the combined performance obligation is satisfied over time, the Company 
uses judgment in determining the appropriate method of measuring progress for purposes of recognizing revenue from the up-front license fees. The 
Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.

Product revenue, net

Product revenue, net consists of revenues from sales of roxadustat commercial product to Falikang, and directly to pharmaceutical distributors located in 
one province in China that are not covered by Falikang. Falikang is jointly owned by AstraZeneca AB (“AstraZeneca”) and FibroGen Beijing. The 
Company is not the primary beneficiary of Falikang for accounting purposes, as AstraZeneca is the final decision maker for all the roxadustat 
commercialization activities, and the Company lacks the power criterion to direct the activities of Falikang (see Note 4, Equity method investment - 
Variable Interest Entity). 

Sales to Falikang

Falikang became fully operational in January 2021, at which time FibroGen Beijing began selling roxadustat commercial product to Falikang. Falikang is 
FibroGen Beijing’s primary customer in China and substantially all roxadustat product sales to distributors in China are made by Falikang. Falikang bears
inventory risk once it receives and accepts the product from FibroGen Beijing, and is responsible for delivering product to its distributors.

The  promises  identified  under  the  AstraZeneca  China  Agreement  (as  defined  in  Note  3,  Collaboration  Agreements,  License  Agreement  and  Revenues), 
including the license, co-development services and manufacturing of commercial supplies have been bundled into a single performance obligation (“China 
performance obligation”). Amounts of the transaction price allocable to this performance obligation under the Company’s agreements with AstraZeneca as 
outlined  in  Note  3,  Collaboration  Agreements,  License  Agreement  and  Revenues,  are  deferred  until  control  of  the  manufactured  commercial  product  is 
transferred to AstraZeneca.

The initiation of roxadustat sales to Falikang marked the beginning of the China performance obligation. Revenue is recognized at a point in time when 
control of roxadustat commercial product is transferred to Falikang. Revenue is recognized based on the estimated transaction price per unit and actual 
quantity of product delivered during the reporting period. Specifically, the transaction price per unit is determined based on the overall transaction price 
over the total estimated sales quantity for the estimated performance period in which the Company determined it is likely those sales would occur. The 
price per unit is subject to reassessment on a quarterly basis, which may result in cumulative catch up adjustments due to changes in estimates.

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The overall transaction price for FibroGen Beijing’s product sales to Falikang includes the following elements of consideration: 

●

●

●

●

Non-refundable  upfront  license  fees;  development,  regulatory,  and  commercial  milestone  payments  based  on  the  AstraZeneca  China  Agreement 
allocated to the China performance obligation;

Co-development  billings  resulting  from  the  Company’s  research  and  development  efforts,  which  are  reimbursable  under  the  AstraZeneca  China 
Agreement;

Interim profit/loss share between FibroGen Beijing and AstraZeneca from April 1, 2020 through December 31, 2020; and

Net transaction price from product sales to Falikang from January 1, 2021 onwards. The net transaction price includes the following elements: 

o

o

Gross transaction price: The gross transaction price is based on a percentage of Falikang’s net sales to its distributors, which takes into 
account Falikang’s operating expenses and its payments to AstraZeneca for roxadustat sales and marketing efforts, capped at a percentage of 
Falikang’s net roxadustat sales. 

Profit share: The gross transaction price is then adjusted for an estimated amount to achieve the 50/50 profit share from current period 
roxadustat net sales in China. The adjustments to date have been a reduction to the transaction price and the related accounts receivable from 
Falikang. 

The non-refundable upfront license fees constitute a fixed consideration. The remainder of the above are variable consideration components, which may be 
constrained, and included in the transaction price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue 
recognized will not occur in a future period when the uncertainty associated with the variable consideration is subsequently resolved. The calculation of the 
above  variable  consideration  includes  significant  assumptions  such  as  total  sales  quantity,  performance  period,  gross  transaction  price  and  profit  share, 
which require significant judgment.

Any net transaction price in excess of the revenue recognized is deferred, and will be recognized over future periods as the performance obligations are 
satisfied.

Direct Sales to Distributors

The  Company  sells  roxadustat  in  China  directly  to  a  number  of  pharmaceutical  distributors  located  in  one  province  in  China  that  are  not  covered  by 
Falikang.  These  pharmaceutical  distributors  are  the  Company’s  customers.  Hospitals  order  roxadustat  through  a  distributor  and  the  Company  ships  the 
product directly to the distributors. The delivery of roxadustat to a distributor represents a single performance obligation. Distributors are responsible for 
delivering  product  to  end  users,  primarily  hospitals.  Distributors  bear  inventory  risk  once  they  receive  and  accept  the  product.  Product  revenue  is 
recognized when control of the promised good is transferred to the customer in an amount that reflects the consideration that the Company expects to be 
entitled to in exchange for the product.

The period between the transfer of control of the promised goods and when the Company receives payment is based on 60-day payment terms. As such, 
product revenue is not adjusted for the effects of a significant financing component.

Product revenue is recorded at the net sales prices that includes the following estimates of variable consideration:

●

●

●

Price  adjustment:  When  China’s  National  Healthcare  Security  Administration  releases  price  guidance  for  roxadustat  under  the  National 
Reimbursement Drug List, any channel inventories that have not been sold through by distributors, or to patients by hospitals and retailers, would be 
eligible for a price adjustment under the price protection. The price adjustment is calculated based on estimated channel inventory levels;

Contractual sales rebate: The contractual sales rebate is calculated based on the stated percentage of gross sales by each distributor in the distribution 
agreement entered between FibroGen and each distributor. The contractual sales rebate is recorded as a reduction to revenue at the point of sale to 
the distributor;

Non-key account hospital listing award: A one-time fixed-amount award is offered to a distributor who successfully lists the product with an eligible 
hospital, and who meets certain requirements. For the year ended December 31, 2020, the non-key account hospital listing award was capitalized 
when the distributor meets eligibility requirements, and amortized as reduction to product revenue over future sales orders made by the distributor 
until exhausted. For the years ended December 31, 2022 and 2021, the non-key account hospital listing award was immaterial and recorded as a 
reduction to revenue when distributor meets eligibility requirements;

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●

●

Other discounts and rebates, including key account hospital sales rebate and transfer fee discount, are generally based on a percentage of eligible 
gross sales made by the distributor and recorded as a reduction to revenue at the point of sale to the distributor; and

Sales returns: Distributors can request to return product to the Company only due to quality issues or for product purchased within one year prior to 
the product’s expiration date.

The  calculation  of  the  above  variable  consideration  is  based  on  gross  sales  to  the  distributor,  or  estimated  utilizing  best  available  information  from  the 
distributor,  maximum  known  exposures  and  other  available  information  including  estimated  channel  inventory  levels  and  estimated  sales  made  by  the 
distributor to hospitals, which involve a significant judgment.

The above rebates and discounts all together are eligible to be applied against the distributor’s future sales order, limited to certain maximums until such
rebates and discounts are exhausted. These rebates and discounts are recorded as contract liabilities at the time they become eligible and in the same period 
that  the  related  revenue  is  recorded.  Due  to  the  distributor’s  legal  right  to  offset,  at  each  balance  sheet  date,  the  liability  for  rebates  and  discounts  are 
presented  as  reductions  of  gross  accounts  receivable  from  the  distributor,  or  as  a  current  liability  to  the  distributor  to  the  extent  that  the  total  amount 
exceeds the gross accounts receivable or when the Company expects to settle the discount in cash. The distributor’s legal right of offset is calculated at the 
individual distributor level.

Drug product revenue

Drug product revenue includes commercial-grade API or bulk drug product sales to AstraZeneca and Astellas Pharma Inc. (“Astellas”) in support of pre-
commercial preparation prior to the New Drug Application (“NDA”) or Marketing Authorization Application approval, and to Astellas for ongoing 
commercial launch in Japan and Europe. Drug product revenue is recognized when the Company fulfills the inventory transfer obligations. 

The amount of variable consideration that is included in the transaction price may be constrained, and is included in the drug product revenue only to the 
extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period when the 
uncertainty associated with the variable consideration is subsequently resolved. Estimating variable consideration and the related constraint requires the use 
of significant management judgment. The Company reviews new information that may affect its variable consideration estimate at every reporting period 
and records revenue adjustment, if certain and material. Actual amounts of consideration ultimately received in the future may differ from the Company’s 
estimates, for which the Company will adjust these estimates and affect the drug product revenue in the period such variances become known. 

As each of the Company’s collaboration agreements provide for annual true up to the considerations paid for its commercial supplies, the Company will re-
evaluate the transaction price in each reporting period and record adjustment to revenue as uncertain events are resolved or other changes in circumstances 
occur.

License Acquisition Agreement

In June 2021, the Company entered into an exclusive license and option agreement (the “HiFiBiO Agreement”) with HiFiBiO Therapeutics (“HiFiBiO”), 
pursuant  to  which  the  Company  exclusively  licensed  all  product  candidates  in  HiFiBiO’s  Galectin-9  program  and  subsequently  exclusively  licensed  all 
product candidates in HiFiBiO’s CCR8 program in December 2021. Under the terms of the HiFiBiO Agreement, the Company has paid a $25.0 million 
upfront payment to HiFiBiO during the year ended December 31, 2021, and recorded a $35.0 million upfront payment for the CCR8 option exercise in 
accrued  liabilities  as  of  December  31,  2021,  which  was  paid  during  the  first  quarter  of  2022.  HiFiBiO  may  receive  up  to  a  total  of  an  additional  $345 
million in future clinical, regulatory, and commercial milestone payments for each program. HiFiBiO will also be eligible to receive tiered royalties based 
upon worldwide net sales. We expect to file INDs on product candidates for both the CCR8 and Galectin-9 programs in 2023. 

The acquisition of these licenses was accounted for as an asset acquisition. The above-mentioned upfront payments of $60.0 million related to the license 
and  options  acquisition  meets  the  definition  of  an  in-process  research  and  development  asset  (“IPR&D  asset”)  under  the  ASC  730,  Research  and 
Development. They relate to particular research and development projects and are determined to have no alternative future uses and thus have no separate 
economic value. Therefore, these upfront payments were recorded as research and development expenses during the year ended December 31, 2021, and 
the cash payments were reflected as investing activities in the consolidated statement of cash flows during the years ended December 31, 2022 and 2021, 
respectively.

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Contingent consideration payments will be evaluated and recognized when they become probable and reasonably estimable. The related IPR&D asset will 
only be capitalized if it has an alternative future use other than in a particular research and development project. Otherwise, amounts allocated to IPR&D 
asset that have no alternative use will be expensed. As of December 31, 2022, all programs were at the early stage of development and the contingencies 
related to the milestone payments had not been resolved, therefore no contingent consideration was recognized. The Company will reassess the probability 
of future option payments and contingent payments on a quarterly basis.

Research and Development Expenses

Research and development expenses consist of above-mentioned expense for acquired IPR&D asset, independent research and development costs and the 
gross amount of costs associated with work performed under collaboration agreements. Research and development costs include employee-related 
expenses, expenses incurred under agreements with clinical research organizations, other clinical and preclinical costs and allocated direct and indirect 
overhead costs, such as facilities costs, information technology costs and other overhead. All research and development costs are expensed as incurred. 

Clinical Trial Accruals

Clinical trial costs are a component of research and development expenses. The Company accrues and expenses clinical trial activities performed by third 
parties based upon actual work completed in accordance with agreements established with clinical research organizations and clinical sites. The Company 
determines the costs to be recorded based upon validation with the external service providers as to the progress or stage of completion of trials or services 
and the agreed-upon fee to be paid for such services.

Selling, General and Administrative Expenses

Selling, general and administrative (“SG&A”) expenses consist primarily of employee-related expenses for executive, operational, finance, legal, 
compliance and human resource functions. SG&A expenses also include facility-related costs, professional fees, accounting and legal services, other 
outside services including co-promotional expenses associated with our commercialization efforts in China, recruiting fees and expenses associated with 
obtaining and maintaining patents.

Income Taxes

The Company utilizes the asset and liability method of accounting for income taxes, which requires the recognition of deferred tax assets and liabilities for 
expected future consequences of temporary differences between the financial reporting and income tax bases of assets and liabilities using enacted tax 
rates. Management makes estimates, assumptions and judgments to determine the Company’s provision for income taxes and for deferred tax assets and 
liabilities, and any valuation allowances recorded against the Company’s deferred tax assets. The Company assesses the likelihood that its deferred tax 
assets will be recovered from future taxable income and, to the extent the Company believes that recovery is not likely, the Company must establish a 
valuation allowance.

The calculation of the Company’s current provision for income taxes involves the use of estimates, assumptions and judgments while taking into account 
current tax laws, interpretation of current tax laws and possible outcomes of future tax audits. The Company has established reserves to address potential 
exposures related to tax positions that could be challenged by tax authorities. Although the Company believes its estimates, assumptions and judgments to 
be reasonable, any changes in tax law or its interpretation of tax laws and the resolutions of potential tax audits could significantly impact the amounts 
provided for income taxes in the Company’s consolidated financial statements.

The calculation of the Company’s deferred tax asset balance involves the use of estimates, assumptions and judgments while taking into account estimates 
of the amounts and type of future taxable income. Actual future operating results and the underlying amount and type of income could differ materially 
from the Company’s estimates, assumptions and judgments thereby impacting the Company’s financial position and results of operations.

During 2020, the Company transferred certain intellectual property rights relating to its Chinese business between its wholly owned subsidiaries that are 
based in different tax jurisdictions. See Note 13, Income Taxes, for more information. The establishment of a deferred tax asset from the intra-entity transfer 
of intangible assets required the Company to make significant estimates and assumptions to determine the fair value of intellectual property rights 
transferred, which include but are not limited to, its expectations of discount rate, revenue volume and price. The accuracy of these estimates could be 
affected by unforeseen events or actual results, and the sustainability of the Company’s future tax benefits is dependent upon the acceptance of these 
valuation estimates and assumptions by the taxing authorities.

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The Company has adopted ASC 740-10, Accounting for Uncertainty in Income Taxes, that prescribes a recognition threshold and measurement attribute for 
the financial statement recognition and measurement of uncertain tax positions taken or expected to be taken in the Company’s income tax return, and also 
provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition.

The Company includes interest and penalties related to unrecognized tax benefits within income tax expense in the Consolidated Statements of Operations. 

Stock-Based Compensation

The Company maintains equity incentive plans under which equity awards are granted to employees, which are comprised of stock options, service-based 
restricted stock units (“RSUs”), performance-based RSUs (“PRSUs”), and total shareholder return (“TSR”) awards.

The Company measures and recognizes compensation expense for all stock options, RSUs and PRSUs granted to its employees and directors based on the 
estimated fair value of the award on the grant date. The Company uses the Black-Scholes valuation model to estimate the fair value of stock option awards. 
The determination of the grant date fair value of options using the Black-Scholes valuation model is affected by the Company’s estimated common stock 
fair value and requires management to make a number of assumptions including the expected life of the option, the volatility of the underlying stock, the 
risk-free interest rate and expected dividends. The Company determines the fair value of RSUs and PRSUs using the fair value of our common stock on the 
date of grant. To estimate the fair value of the TSR awards, the Company uses the Monte Carlo valuation model to simulate the probabilities of 
achievement, which requires management to make a number of assumptions including 30-day average price, volatility of the underlying stock and the 
Company’s peers, and the risk-free interest rate. 

The compensation cost of service-based stock options and restricted stock units is recognized net of any estimated forfeitures on a straight-line basis over 
the employee requisite service period. Compensation cost for PRSUs is expensed over the respective vesting periods when the achievement of performance 
criteria is probable. Compensation cost for the TSR awards is recognized over the requisite service period, regardless of when, if ever, the market condition 
is satisfied.

The Company believes that the fair value of stock options granted to non-employees is more reliably measured than the fair value of the services received. 

Comprehensive Income (Loss)

The Company is required to report all components of comprehensive income (loss), including net loss, in the consolidated financial statements in the period 
in which they are recognized. Comprehensive income (loss) is defined as the change in equity during a period from transactions and other events and 
circumstances from non-owner sources, including unrealized gains and losses on investments and foreign currency translation adjustments. Comprehensive 
gains (losses) have been reflected in the consolidated statements of comprehensive income (loss) for all periods presented.

Recently Issued and Adopted Accounting Guidance

In March 2020, the Financial Accounting Standards Board (“FASB”) issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects 
of Reference Rate Reform on Financial Reporting (“ASU 2020-04”), which provides companies with optional financial reporting alternatives to reduce the 
cost and complexity associated with the accounting for contracts and hedging relationships affected by reference rate reform. Subsequently in January 
2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope, which clarifies ASU 2020-04 and provides certain optional expedients 
that allow derivative instruments impacted by changes in the interest rate used for margining, discounting or contract price alignment to qualify for certain 
optional relief. ASU 2021-01 is effective in the same timeframe as ASU2020-04. The Company did not elect to apply any of the expedients or exceptions 
as of and for the years ended December 31, 2022 and 2021. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): 
Deferral of the Sunset Date of Topic 848, which deferred the sunset date in Topic 848 from December 31, 2022 to December 31, 2024. The Company has 
certain lease arrangements that were accounted for with reference to the London Inter-Bank Offered Rate (“LIBOR”). The Company has evaluated the 
options for transitioning away from LIBOR for these arrangements and concluded that there is no material impact on its consolidated financial statements 
and related disclosures affected by reference rate reform.

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3. Collaboration Agreements, License Agreement and Revenues

Astellas Agreements

Astellas Japan Agreement

In June 2005, the Company entered into a collaboration agreement with Astellas for the development and commercialization (but not manufacture) of 
roxadustat for the treatment of anemia in Japan (“Astellas Japan Agreement”). Under this agreement, Astellas paid license fees and other consideration 
totaling $40.1 million (such amounts were fully received as of February 2009). Under the Astellas Japan Agreement, the Company is also eligible to 
receive from Astellas an aggregate of approximately $132.5 million in potential milestone payments, comprised of (i) up to $22.5 million in milestone 
payments upon achievement of specified clinical and development milestone events (such amounts were fully received as of July 2016), (ii) up to $95.0 
million in milestone payments upon achievement of specified regulatory milestone events, and (iii) up to approximately $15.0 million in milestone 
payments upon the achievement of specified commercial sales milestone. The Astellas Japan Agreement also provides for tiered payments based on net 
sales of product (as defined) in the low 20% range of the list price published by the Japanese Ministry of Health, Labour and Welfare, adjusted for certain 
elements, after commercial launch. 

During the fourth quarter of 2020, the Japanese Ministry of Health, Labour and Welfare approved EVRENZO® (roxadustat) for the treatment of anemia of 
CKD in adult patients not on dialysis. This approval triggered a $15.0 million milestone payable to the Company by Astellas under the Astellas Japan 
Agreement. Accordingly, the consideration of $15.0 million associated with this milestone was included in the transaction price and allocated to 
performance obligations under the Astellas Japan Agreement in the fourth quarter of 2020, substantially all of which was recognized as revenue during the 
year ended December 31, 2020 from performance obligations satisfied or partially satisfied.

The aggregate amount of the considerations received under the Astellas Japan Agreement, through December 31, 2022 totals $105.1 million excluding drug 
product revenue that is discussed under the Drug Product Revenue section below.

In 2018, FibroGen and Astellas entered into an amendment to the Astellas Japan Agreement that allows Astellas to manufacture roxadustat drug product 
for commercialization in Japan (the “Astellas Japan Amendment”). Under this amendment, FibroGen would continue to manufacture and supply roxadustat 
API to Astellas for the roxadustat commercial launch in Japan. The commercial terms of the Astellas Japan Agreement relating to the transfer price for 
roxadustat for commercial use remain substantially the same, reflecting an adjustment for the manufacture of drug product by Astellas rather than 
FibroGen. The related drug product revenue is described under the Drug Product Revenue section below. 

Astellas Europe Agreement

In April 2006, the Company entered into a separate collaboration agreement with Astellas for the development and commercialization of roxadustat for the 
treatment of anemia in Europe, the Middle East, the Commonwealth of Independent States and South Africa (“Astellas Europe Agreement”). Under the 
terms of the Astellas Europe Agreement, Astellas paid license fees and other upfront consideration totaling $320.0 million (such amounts were fully 
received as of February 2009). The Astellas Europe Agreement also provides for additional development and regulatory approval milestone payments up to 
$425.0 million, comprised of (i) up to $90.0 million in milestone payments upon achievement of specified clinical and development milestone events (such 
amounts were fully received as of 2012), and (ii) up to $335.0 million in milestone payments upon achievement of specified regulatory milestone events. 
Under the Astellas Europe Agreement, Astellas committed to fund 50% of joint development costs for Europe and North America, and all territory-specific 
costs. The Astellas Europe Agreement also provides for tiered payments based on net sales of product (as defined) in the low 20% range. 

On March 21, 2022, EVRENZO® (roxadustat) was registered with the Russian Ministry of Health. The Company evaluated the regulatory milestone 
payment associated with the approval in Russia under the Astellas Europe Agreement and concluded that this milestone was achieved in the first quarter of 
2022. Accordingly, the consideration of $25.0 million associated with this milestone was included in the transaction price and allocated to performance 
obligations under the Astellas Europe Agreement, all of which was recognized as revenue during the year ended December 31, 2022 from performance 
obligations satisfied.

122

 
During the third quarter of 2021, the European Commission approved EVRENZO® (roxadustat) for the treatment of adult patients with symptomatic 
anemia associated with CKD. Astellas has launched EVRENZO in Germany, the United Kingdom, the Netherlands, and Austria. This approval triggered a 
total of $120.0 million milestone payable to the Company by Astellas under the Astellas Europe Agreement. Accordingly, the consideration of $120.0 
million associated with these milestones was included in the transaction price and allocated to performance obligations under the Astellas Europe 
Agreement, all of which was recognized as revenue during the year ended December 31, 2021 from performance obligations satisfied.

The aggregate amount of the considerations received under the Astellas Europe Agreement through December 31, 2022 totals $685.0 million, excluding 
drug product revenue that is discussed under the Drug Product Revenue section below.

Under the Astellas Europe Agreement, Astellas has an option to purchase roxadustat bulk drug product in support of commercial supplies. During the first 
quarter of 2021, the Company entered into an EU Supply Agreement with Astellas (“Astellas EU Supply Agreement”) to define general forecast, order, 
supply and payment terms for Astellas to purchase roxadustat bulk drug product from FibroGen in support of commercial supplies. The related drug 
product revenue is described under the Drug Product Revenue section below. 

Accounting for the Astellas Agreements

For each of the Astellas agreements, the Company has evaluated the promised services within the respective arrangements and has identified performance 
obligations representing those services and bundles of services that are distinct.

Promised services that were not distinct have been combined with other promised services to form a distinct bundle of promised services, with revenue 
being recognized on the bundle of services rather than the individual services. There are no right-of-return provisions for the delivered items in the Astellas 
agreements.

As of December 31, 2022, the transaction price for the Astellas Japan Agreement, excluding manufacturing services that is discussed separately below, 
included $40.1 million of non-contingent upfront payments, $65.0 million of variable consideration related to payments for milestones achieved, and $12.1 
million of variable consideration related to co-development billings. The transaction price for the Astellas Europe Agreement, excluding manufacturing 
services that is discussed separately below, included $320.0 million of non-contingent upfront payments, $365.0 million of variable consideration related to 
payments for milestones achieved, and $219.2 million of variable consideration related to co-development billings. 

For the technology license under the Astellas Japan Agreement and the Astellas Europe Agreement, SSP was determined primarily by using the discounted 
cash flow (“DCF”) method, which aggregates the present value of future cash flows to determine the valuation as of the effective date of each of the 
agreements. The DCF method involves the following key steps: 1) the determination of cash flow forecasts and 2) the selection of a range of comparative 
risk-adjusted discount rates to apply against the cash flow forecasts. The discount rates selected were based on expectations of the total rate of return, the 
rate at which capital would be attracted to the Company and the level of risk inherent within the Company. The discounts applied in the DCF analysis 
ranged from 17.5% to 20.0%. The Company’s cash flow forecasts were derived from probability-adjusted revenue and expense projections by territory. 
Such projections included consideration of taxes and cash flow adjustments. The probability adjustments were made after considering the likelihood of 
technical success at various stages of clinical trials and regulatory approval phases. SSP also considered certain future royalty payments associated with 
commercial performance of the Company’s compounds, transfer prices and expected gross margins.

123

 
The promised services that were analyzed, along with their general timing of satisfaction and recognition as revenue, are as follows:

(1)

License to the Company’s technology existing at the effective date of the agreements. For both of the Astellas agreements, the license was delivered 
at the beginning of the agreement term. In both cases, the Company concluded at the time of the agreement that its collaboration partner, Astellas, 
would have the knowledge and capabilities to fully exploit the licenses without the Company’s further involvement. However, the Astellas Japan 
Agreement has contractual limitations that might affect Astellas’ ability to fully exploit the license and therefore, potentially, the conclusion as to 
whether the license is capable of being distinct. In the Astellas Japan Agreement, Astellas does not have the right to manufacture commercial 
supplies of the drug. In order to determine whether this characteristic of the agreement should lead to a conclusion that the license was not distinct in 
the context of the agreement, the Company considered the ability of Astellas to benefit from the license together with other resources readily 
available to Astellas. Finally, the Company considered the fact that at the time of delivery of the license, the development services were beyond the 
preclinical development phase and any remaining development work in either agreement would not be expected to result in any significant 
modification or customization to the licensed technology. As such, the development services are separately identifiable from the licensed 
technology, indicating that the license is a distinct performance obligation.

Manufacturing rights. In the case of the Astellas Japan Agreement, the Company retained manufacturing rights largely because of the way the 
parties chose for FibroGen to be compensated under the agreement. At the time the agreement was signed, the Company believed that it was more 
advantageous upon commercialization to have a transfer price revenue model in place as opposed to a traditional sales-based model. The 
manufacturing process does not require specialized knowledge or expertise uniquely held by FibroGen, and notwithstanding contractual restrictions, 
Astellas could employ manufacturing services from readily available third parties in order to benefit from the license. Therefore, along with the 
foregoing paragraph, the Company determined that the license in Japan is a distinct performance obligation despite the retention of manufacturing 
rights by the Company.

In summary, the Company concludes that item (1) represents a performance obligation. The portion of the transaction price allocated to this 
performance obligation based on a relative SSP basis was recognized as revenue in its entirety at the point in time the license transfers to Astellas.

(2)

Co-development services (Astellas Europe Agreement). This promise relates to co-development services that were reasonably expected to be 
performed by the Company at the time the collaboration agreement was signed and is considered distinct. Co-development billings are allocated 
entirely to the co-development services performance obligation as amounts are related specifically to research and development efforts necessary to 
satisfy the performance obligation related to CKD approval, and such an allocation is consistent with the allocation objective. Through the third 
quarter of 2021 upon the approval of CKD, revenue was recognized over time based on progress toward complete satisfaction of the performance 
obligation. The Company used an input method to measure progress toward the satisfaction of the performance obligation, which was based on costs 
of labor hours and out-of-pocket expenses incurred relative to total expected costs to be incurred. Subsequently, the Company accounts for the 
development services for the indications related to chemotherapy-induced anemia and myelodysplastic syndromes separately as services are 
provided. There was no provision for co-development services in the Astellas Japan Agreement. 

(3)

License to the Company’s technology developed during the term of the agreement and development (referred to as “when and if available”) and 
information sharing services. These promises are generally satisfied throughout the term of the agreements.

(4) Manufacturing of clinical supplies of products. This promise is satisfied as supplies for clinical product are delivered for use in the Company’s 

clinical trial programs during the development period, or pre-commercialization period.

124

 
(5)

Committee service. This promise is satisfied throughout the course of the agreements as meetings are attended.

Items (2)-(5) are bundled into a single performance obligation that is distinct given the fact that all are highly interrelated during the development 
period (pre-commercial phase of development) such that satisfying them independently is not practicable. For the revenue recognized over time 
based on progress toward complete satisfaction of the performance obligation, the Company uses an input method to measure progress toward the 
satisfaction of the performance obligation, which is based on costs of labor hours or full time equivalents and out-of-pocket expenses incurred 
relative to total expected costs to be incurred, and updates the measure of progress in each reporting period.

(6) Manufacturing commercial supplies of products. This promised service is distinct as services are not interrelated with any of the other performance 
obligations. Payments received for commercial supplies of products represent sales-based payments related predominately to the license of 
intellectual property under both Astellas agreements. Revenue is recognized as supplies are shipped for commercial use during the 
commercialization period. See the Drug Product Revenue section below.

Under the Astellas Japan Amendment, the drug product revenue represents variable consideration and is estimated based on the quantity of product 
shipped, actual listed price for roxadustat issued by the Japanese Ministry of Health, Labour and Welfare and possible future changes to the listed 
price, adjusted for the timing of and estimated bulk product strength mix intended to be manufactured by Astellas, estimated cost to convert the API 
to bulk drug product tablets, and estimated yield from the manufacture of bulk product tablets, among others.

Under the Astellas Europe Agreement, the drug product revenue amount represents variable consideration and is estimated based on the quantity of 
product transferred and an estimated price. The estimated price is based on the contractual transfer price percentage applied on the estimated 
weighted average net sales price per strength, which is estimated to be realized by Astellas from the end sale of roxadustat in its approved territories.

License Revenue and Development Revenue Recognized Under the Astellas Agreements 

License amounts identified below are included in the “License revenue” line item in the consolidated statements of operations. All other elements identified 
below are included in the “Development and other revenue” line item in the consolidated statements of operations.

Amounts recognized as license revenue and development revenue under the Astellas Japan Agreement were as follows for the years ended December 31, 
2022, 2021 and 2020 (in thousands):

Agreement
Astellas Japan Agreement

  Performance Obligation
  License revenue
  Development revenue

2022

Years Ended December 31,
2021

  $
  $

—     $
284     $

—     $
248     $

2020

14,323  
1,220  

The transaction price related to consideration received through December 31, 2022 and accounts receivable has been allocated to each of the following 
performance obligations under the Astellas Japan Agreement, along with any associated deferred revenue as follows (in thousands):

Astellas Japan Agreement
License
Development revenue

Total license and development revenue

  $

  $

Cumulative
Revenue 
Through 
December 31, 2022

Deferred
Revenue at
December 31, 2022

Total
Consideration
Through
December 31, 2022

100,347     $
16,882    
117,229     $

125

—     $
—    
—     $

100,347  
16,882  
117,229  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
There was no license revenue or development revenue resulting from changes to estimated variable consideration in the current period relating to 
performance obligations satisfied or partially satisfied in previous periods for the year ended December 31, 2022. The Company does not expect material 
variable consideration from estimated future co-development billing beyond the development period in the transaction price related to the Astellas Japan 
Agreement.

Amounts recognized as license revenue and development revenue under the Astellas Europe Agreement were as follows for the years ended December 31, 
2022, 2021 and 2020 (in thousands):

Agreement
Astellas Europe Agreement

  Performance Obligation
  License revenue
  Development revenue

  $
  $

2022

Years Ended December 31,
2021

22,590     $
9,624     $

108,434     $
21,679     $

2020

—  
17,954  

The transaction price related to consideration received through December 31, 2022 and accounts receivable has been allocated to each of the following 
performance obligations under the Astellas Europe Agreement, along with any associated deferred revenue as follows (in thousands):

Astellas Europe Agreement
License
Development revenue

Total license and development revenue

Cumulative
Revenue 
Through 
December 31, 2022

Deferred
Revenue at
December 31, 2022

Total
Consideration
Through
December 31, 2022

  $

  $

618,975     $
280,265    
899,240     $

—     $
—    
—     $

618,975  
280,265  
899,240  

The license revenue and development revenue recognized under the Astellas Europe Agreement for the year ended December 31, 2022 included an 
increase in revenue of $25.0 million relating to performance obligations satisfied during the year. The remainder of the transaction price related to the 
Astellas Europe Agreement includes $5.0 million of variable consideration from estimated future co-development billing and is expected to be recognized 
over the remaining development service period.

AstraZeneca Agreements

AstraZeneca U.S./Rest of World (“RoW”) Agreement

Effective July 30, 2013, the Company entered into a collaboration agreement with AstraZeneca for the development and commercialization of roxadustat 
for the treatment of anemia in the U.S. and all other countries in the world, other than China, not previously licensed under the Astellas Europe and Astellas 
Japan Agreements (“AstraZeneca U.S./RoW Agreement”). China is covered by a separate agreement with AstraZeneca described below. Under the terms 
of the AstraZeneca U.S./RoW Agreement, AstraZeneca paid upfront, non-contingent, non-refundable and time-based payments totaling $374.0 million 
(such amounts were fully received as of June 2016). Under the AstraZeneca U.S./RoW Agreement, AstraZeneca also agreed to pay an aggregate of 
approximately $875.0 million in potential milestone payments, comprised of (i) up to $65.0 million in milestone payments upon achievement of specified 
clinical and development milestone events, (ii) up to $325.0 million in milestone payments upon achievement of specified regulatory milestone events, (iii) 
up to $160.0 million in milestone payments related to activity by potential competitors and (iv) up to approximately $325.0 million in milestone payments 
upon the achievement of specified commercial sales events. 

126

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
Under the AstraZeneca U.S./RoW Agreement, the Company and AstraZeneca will equally share in the development costs of roxadustat not already paid for 
by Astellas, up to a total of $233.0 million (i.e. the Company’s share of development costs is $116.5 million, which was reached in 2015). Development 
costs incurred by FibroGen during the development period in excess of the $233.0 million (aggregated spend) are fully reimbursed by AstraZeneca. 
AstraZeneca will pay the Company tiered royalty payments on AstraZeneca’s future net sales (as defined in the agreement) of roxadustat in the low 20% 
range. In addition, the Company will receive a transfer price for shipment of commercial product based on a percentage of AstraZeneca’s net sales (as 
defined in the agreement) in the low- to mid-single digit range.

The aggregate amount of the considerations received under the AstraZeneca U.S./RoW Agreement through December 31, 2022 totals $439.0 million, 
excluding drug product revenue that is discussed under the Drug Product Revenue section below. 

In 2020, the Company entered into a Master Supply Agreement with AstraZeneca under the AstraZeneca U.S./RoW Agreement (“AstraZeneca Master 
Supply Agreement”) to define general forecast, order, supply and payment terms for AstraZeneca to purchase roxadustat bulk drug product from FibroGen 
in support of commercial supplies. The related drug product revenue is described under the Drug Product Revenue section below.

AstraZeneca China Agreement

Effective July 30, 2013, the Company (through its subsidiaries affiliated with China) entered into a collaboration agreement with AstraZeneca for the 
development and commercialization (but not manufacture) of roxadustat for the treatment of anemia in China (“AstraZeneca China Agreement”). Under 
the terms of the AstraZeneca China Agreement, AstraZeneca agreed to pay upfront consideration totaling $28.2 million (such amounts were fully received 
in 2014). Under the AstraZeneca China Agreement, the Company is also eligible to receive from AstraZeneca an aggregate of approximately $348.5 
million in potential milestone payments, comprised of (i) up to $15.0 million in milestone payments upon achievement of specified clinical and 
development milestone events, (ii) up to $146.0 million in milestone payments upon achievement of specified regulatory milestone events, and (iii) up to 
approximately $187.5 million in milestone payments upon the achievement of specified commercial sales and other events. The AstraZeneca China 
Agreement is structured as a 50/50 profit or loss share (as defined), which was amended under the AstraZeneca China Amendment discussed below in the 
third quarter of 2020, and provides for joint development costs (including capital and equipment costs for construction of the manufacturing plant in 
China), to be shared equally during the development period. 

The aggregate amount of the considerations received for milestone and upfront payments under the AstraZeneca China Agreement through December 31, 
2022 totals $77.2 million. 

AstraZeneca China Amendment 

In July 2020, FibroGen China Anemia Holdings, Ltd., FibroGen Beijing, and FibroGen International (Hong Kong) Limited and AstraZeneca entered into 
an amendment, relating to the development and commercialization of roxadustat in China (the “AstraZeneca China Amendment”). Under the AstraZeneca 
China Amendment, in September 2020, FibroGen Beijing and AstraZeneca completed the establishment of a jointly owned entity, Falikang, which 
performs roxadustat distribution, as well as conducts sales and marketing through AstraZeneca.

Under the AstraZeneca China Amendment, the interim period is defined as the period from April 1, 2020 to the time when Falikang is fully operational. 
Falikang became fully operational in January 2021. The calculation for profit or loss share related to sales of roxadustat in China has changed for the period 
from April 1, 2020 onwards. With effect from April 1, 2020, the Parties have changed the method under which commercial expenses incurred by 
AstraZeneca are calculated and billed. AstraZeneca’s co-promotion expenses for their sales and marketing efforts are now subject to a cap of a percentage 
of net sales. In addition, the AstraZeneca China Amendment has allowed for a higher cost of manufacturing incurred by FibroGen Beijing to be included in 
the profit or loss share calculation, subject to an annual cap, among other changes. 

127

 
As a result, the interim period during the year ended December 31, 2020 primarily included the following activities:

•

•

Co-promotion expenses: The AstraZeneca China Amendment revised the payment arrangements and calculation of the historical unpaid co-
promotion expenses to AstraZeneca for its sales and marketing efforts associated with the commercial sales for roxadustat in China since the 
product launch. Under the AstraZeneca China Amendment, a portion of the historical unpaid co-promotion expenses was adjusted to reduce the 
amount owed by FibroGen Beijing and the current period co-promotion expenses are capped at a percentage of net roxadustat sales in China. As a 
result, in the third quarter of 2020, the Company reversed approximately $84.4 million of previously accrued co-promotion expenses payable, which 
was recorded as a reduction to selling, general and administrative expenses, where these expenses were initially recorded during the periods from 
the initiation of commercial activities in the first quarter of 2019 to the second quarter of 2020. The co-promotion expenses for the years ended 
December 31, 2022, 2021 and 2020, capped at a percentage of net roxadustat sales in China, were $4.4 million, $4.7 million and $27.2 million, 
respectively, included in the selling, general and administrative expenses.

Profit share: Profit/loss share between FibroGen Beijing and AstraZeneca is based on a calculation of the current period net roxadustat sales in 
China and deductible expenses pursuant to the AstraZeneca China Agreement. Based on the calculation revised under the AstraZeneca China 
Amendment, profit was achieved during the third and fourth quarter of 2020. As a result, the Company recorded a profit share liability of $7.3 
million and $7.9 million to AstraZeneca as of December 31, 2022 and 2021, respectively, in the accrued and other current liabilities, which 
correspondingly reduced the deferred revenue related to the performance obligation in accordance with the AstraZeneca China Agreement.

Since Falikang became fully operational in January 2021, substantially all direct roxadustat product sales to distributors in China are made by Falikang, 
while FibroGen Beijing continues to sell roxadustat product directly in one province in China. FibroGen Beijing manufactures and supplies commercial 
product to Falikang based on a gross transaction price, which is adjusted for the estimated profit share. In addition, AstraZeneca now bills the co-promotion 
expenses to Falikang and to FibroGen Beijing, respectively, for its services provided to the respective entity. AstraZeneca is entitled to reimbursement of its 
sales and marketing expenses up to a cumulative capped amount of a percentage of net sales. Once such amount is reached, AstraZeneca will bill the co-
promotion expenses based on actual costs as incurred plus a markup on a prospective basis, which is currently expected to continue through 2028. 
Development costs continue to be shared 50/50 between the Parties.

The related net product revenue recognized from the sales to Falikang and the sales directly to distributors are discussed under the Product Revenue, Net 
section below.

Accounting for the AstraZeneca Agreements

The Company evaluated whether the AstraZeneca U.S./RoW Agreement and the AstraZeneca China Agreement should be accounted for as a single or 
separate arrangements and concluded that the agreements should be accounted for as a single arrangement with the presumption that two or more 
agreements executed with a single customer at or around the same time should be presumed to be a single arrangement. The key points the Company 
considered in reaching this conclusion are as follows: 

1.

2.

3.

While the two agreements were largely negotiated separately, those negotiations proceeded concurrently, and were intended to be completed 
contemporaneously, presuming AstraZeneca decided to proceed with licenses in all regions available. 

Throughout negotiations for both agreements, the Company and the counterparties understood and considered the possibility that one arrangement 
may be executed without the execution of the other arrangement. However, the preference for the Company and the counterparties during the 
negotiations was to execute both arrangements concurrently. 

The two agreements were executed as separate agreements because different development, regulatory and commercial approaches required certain 
terms of the agreements to be structured differently, rather than because the Company or the counterparties considered the agreements to be 
fundamentally separate negotiations.

Accordingly, as the agreements are being accounted for as a single arrangement, upfront and other non-contingent consideration received and to be 
received has been and will be pooled together and allocated to each of the performance obligations in both the AstraZeneca U.S./RoW Agreement and the 
AstraZeneca China Agreement based on their relative SSPs.

128

 
For each of the AstraZeneca agreements, the Company has evaluated the promised services within the respective arrangements and has identified 
performance obligations representing those services and bundled services that are distinct.

Promised services that were not distinct have been combined with other promised services to form a distinct bundle of promised services, with revenue 
being recognized on the bundle of services rather than the individual promised services. There are no right-of-return provisions for the delivered items in 
the AstraZeneca agreements.

As of December 31, 2022, the transaction price for the AstraZeneca U.S./RoW Agreement and the AstraZeneca China Agreement, excluding 
manufacturing services that is discussed separately below, included $402.2 million of non-contingent upfront payments, $114.0 million of variable 
consideration related to payments for milestones considered probable of being achieved, $610.5 million of variable consideration related to co-development 
billings, offset by $7.3 million of variable consideration related to profit share under the AstraZeneca China Amendment.

For the AstraZeneca agreements, the Company allocated the transaction price to the various performance obligations based on the relative SSP of each 
performance obligation, with the exception of co-development billings and commercial sale of product. Co-development billings under the AstraZeneca 
U.S./RoW Agreement were allocated entirely to the U.S./RoW co-development services performance obligation, and co-development billings under the 
AstraZeneca China Agreement were allocated entirely to the combined performance obligation under the AstraZeneca China Agreement. Commercial sale 
of product under the AstraZeneca U.S./ROW Agreement is entirely allocated to the manufacturing commercial supply of products performance obligation, 
and commercial sale of product under the AstraZeneca China Agreement is allocated entirely to the combined China performance obligation.

For revenue recognition purposes, the Company determined that the terms of its collaboration agreements with AstraZeneca begin on the effective date and 
end upon the completion of all performance obligations contained in the agreements. The contract term is defined as the period in which parties to the 
contract have present and enforceable rights and obligations. The Company believes that the requirement to continue funding development for a substantive 
period of time and the loss of product rights, along with non-refundable upfront payments already remitted by AstraZeneca, represent substantive 
termination penalties that create significant disincentive for AstraZeneca to exercise its right to terminate the agreement.

For the technology license under the AstraZeneca U.S./RoW Agreement, SSP was determined based on a two-step process. The first step involved 
determining an implied royalty rate that would result in the net present value of future cash flows to equal to zero (i.e. where the implied royalty rate on the 
transaction would equal the target return for the investment). This results in an upper bound estimation of the magnitude of royalties that a hypothetical 
acquirer would reasonably pay for the forecasted cash flow stream. The Company’s cash flow forecasts were derived from probability-adjusted revenue and 
expense projections. Such projections included consideration of taxes and cash flow adjustments. The probability adjustments were made after considering 
the likelihood of technical success at various stages of clinical trials and regulatory approval phases. The second step involved applying the implied royalty 
rate, which was determined to be 40%, against the probability-adjusted projected net revenues by territory and determining the value of the license as the 
net present value of future cash flows after adjusting for taxes. The discount rate utilized was 17.5%.

AstraZeneca U.S./RoW Agreement:

The promised services that were analyzed, along with their general timing of satisfaction and recognition as revenue, are as follows:

(1)

License to the Company’s technology existing at the effective date of the agreements. For the AstraZeneca U.S./RoW Agreement, the license was 
delivered at the beginning of the agreement term. The Company concluded that AstraZeneca has the knowledge and capabilities to fully exploit the 
license under the AstraZeneca U.S./RoW Agreement without the Company’s further involvement. Finally, the Company considered the fact that at 
the time of delivery of the license, the development services were beyond the preclinical development phase and any remaining development work 
would not be expected to result in any significant modification or customization to the licensed technology. As such, the development services are 
separately identifiable from the licensed technology, indicating that the license is a distinct performance obligation. Therefore, the Company has 
concluded that the license is distinct and represents a performance obligation. The portion of the transaction price allocated to this performance 
obligation based on a relative SSP basis is recognized as revenue in its entirety at the point in time the license transfers to AstraZeneca.

129

 
(2)

Co-development services. This promise relates to co-development services that were reasonably expected to be performed by the Company at the 
time the collaboration agreement was signed and is distinct. Co-development billings are allocated entirely to the co-development services 
performance obligation as amounts are related specifically to research and development efforts necessary to satisfy the performance obligation, and 
such an allocation is consistent with the allocation objective. Through the end of 2021, revenue was recognized over time based on progress toward 
complete satisfaction of the performance obligation. The Company used an input method to measure progress toward the satisfaction of the 
performance obligation related to CKD approval, which is based on costs of labor hours or full time equivalents and out-of-pocket expenses incurred
relative to total expected costs to be incurred. Subsequently, the Company accounts for the development services for other significant indications 
related to chemotherapy-induced anemia and myelodysplastic syndromes separately as services are provided.

(3) Manufacturing of clinical supplies of products. This promise is satisfied as supplies for clinical product are delivered for use in the Company’s 

clinical trial programs during the development period, or pre-commercialization period.

(4)

Information sharing and committee service. These promises are satisfied throughout the course of the agreement as services are provided.

Items (2)-(4) are bundled into a single performance obligation that is distinct given the fact that all are highly interrelated during the development 
period (pre-commercial phase of development) such that delivering them independently is not practicable. For the revenue recognized over time 
based on progress toward complete satisfaction of the performance obligation, the Company uses an input method to measure progress toward the 
satisfaction of the performance obligation, which is based on costs of labor hours or full time equivalents and out-of-pocket expenses incurred 
relative to total expected costs to be incurred, and updates the measure of progress in each reporting period.

(5) Manufacturing commercial supplies of products. This promise is distinct as services are not interrelated with any of the other performance 

obligations. Revenue is recognized as supplies are shipped for commercial use during the commercialization period. The drug product revenue 
amount represents variable consideration and is estimated based on the quantity of product shipped and an estimated price for each individual 
purchase order. The estimated price is based on the contractual transfer price percentage applied on the estimated weighted average net sales price, 
which is estimated to be realized by AstraZeneca from the end sale of roxadustat in its approved territories. See the Drug Product Revenue section 
below.

AstraZeneca China Agreement:

The promised services that were analyzed are consistent with the AstraZeneca U.S./RoW Agreement, except for license to the Company’s technology 
existing at the effective date of the agreement, described as follows:

•

License to the Company’s technology existing at the effective date of the agreement. The license was delivered at the beginning of the agreement 
term. However, the AstraZeneca China Agreement has contractual limitations that might affect AstraZeneca’s ability to fully exploit the license and 
therefore, potentially, the conclusion as to whether the license is distinct in the context of the agreement. In the AstraZeneca China Agreement, 
AstraZeneca does not have the right to manufacture commercial supplies of the drug. In order to determine whether this characteristic of the 
arrangement should lead to a conclusion that the license was not distinct in the context of the agreement, the Company considered the ability of 
AstraZeneca to benefit from the license on its own or together with other resources readily available to AstraZeneca.

For the AstraZeneca China Agreement, the Company retained manufacturing rights as an essential part of a strategy to pursue domestic regulatory pathway 
for product approval, which requires the regulatory licensure of the manufacturing facility in order to commence commercial shipment. The prospects for 
the collaboration as a whole would have been substantially different had manufacturing rights been provided to AstraZeneca. The Company holds the rights 
to manufacture commercial drug product in China. Therefore, AstraZeneca cannot benefit from the license on its own or together with other readily 
available resources. Accordingly, all the promises identified, including the license, co-development services and manufacturing of commercial supplies, 
under the AstraZeneca China Agreement have been bundled into a single performance obligation and amounts of the transaction price allocable to this 
performance obligation are deferred until control of the manufactured commercial drug product has begun to transfer to AstraZeneca. 

130

 
In accordance with the AstraZeneca China Amendment, once Falikang is fully operational, which commenced in January 2021, substantially all product 
sales will be made by Falikang directly to the distributors in China, while the Company continues to sell directly in one province in China. Revenue is 
recognized at a point in time when control of roxadustat commercial product is transferred to Falikang. For the Company’s direct sales of commercial drug 
product, revenue is recognized when control of the promised good is transferred to the customer in an amount that reflects the consideration that the 
Company expects to be entitled to in exchange for the product. See the Product Revenue, Net section below.

License Revenue and Development Revenue Recognized Under the AstraZeneca Agreements 

Amounts recognized as license revenue and development revenue under the AstraZeneca U.S./RoW Agreement and the AstraZeneca China Agreement 
were as follows for the years ended December 31, 2022, 2021 and 2020 (in thousands):

Agreement
AstraZeneca U.S./RoW Agreement and 
AstraZeneca China Agreement

  Performance Obligation

License revenue

  Development revenue
China performance 
obligation

2022

Years Ended December 31,
2021

2020

$

—     $

—     $

—  

12,519    

48,345    

61,508  

  $

—     $

—     $

(90 )

The transaction price related to consideration received through December 31, 2022 and accounts receivable has been allocated to each of the following 
performance obligations under the AstraZeneca U.S./RoW Agreement and the AstraZeneca China Agreement, along with any associated deferred revenue 
as follows (in thousands):

AstraZeneca U.S./RoW Agreement and 
AstraZeneca China Agreement
License
Co-development, information sharing & 
  committee services
China performance obligation *

Total license and development revenue

  $

  $

Cumulative
Revenue 
Through 
December 31, 2022

Deferred
Revenue at
December 31, 2022

Total
Consideration
Through
December 31, 2022

341,844     $

—    

$

341,844  

615,639      
106,734      
1,064,217     $

—    
175,646    
175,646   ** $

615,639  
282,380  
1,239,863  

*  China performance obligation revenue is recognized as product revenue, as described in details under Product Revenue, Net section below.

**  Contract assets and liabilities related to rights and obligations in the same contract are recorded net on the consolidated balance sheets. As of December 
31, 2022, deferred revenue included $158.2 million related to the AstraZeneca U.S./RoW and the AstraZeneca China Agreement, which represents the net 
of $175.6 million of deferred revenue presented above and a $17.5 million unbilled co-development revenue under the AstraZeneca China Amendment.

There was no license revenue or development revenue resulting from changes to estimated variable consideration in the current period relating to 
performance obligations satisfied or partially satisfied in previous periods for the year ended December 31, 2022. The remainder of the transaction price 
related to the AstraZeneca U.S./RoW Agreement and the AstraZeneca China Agreement includes $9.6 million of variable consideration from estimated 
future co-development billing and is expected to be recognized over the remaining development service period, except for amounts allocated to the China 
performance obligation. The amount allocated to the China performance obligation is expected to be recognized as the Company transfers control of the 
commercial drug product to Falikang, and is expected to continue through 2028, which reflects our best estimates.

131

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
Product Revenue, Net

Product revenue, net from the sales of roxadustat commercial product in China was as follows for the years ended December 31, 2022, 2021 and 2020 (in 
thousands):

Direct Sales:
Gross revenue
Price adjustment
Non-key account hospital listing award
Contractual sales rebate
Other discounts and rebates
Sales returns

Direct sales revenue, net

Sales to Falikang:
Gross transaction price
Profit share

Net transaction price
Decrease (increase) in deferred revenue

Sales to Falikang revenue, net

Total product revenue, net

2022

Years Ended December 31,
2021

2020

  $

  $

12,366     $
242    
49    
(624 )  
(332 )  
1    
11,702    

112,544    
(43,716 )  
68,828    
2,339    
71,167    
82,869     $

13,727    
(982 )  
95    
(832 )  
(21 )  
83    
12,070    

97,531    
(34,759 )  
62,772    
(27,204 )  
35,568    
47,638     $

89,027  
—  
(9,325 )
(6,189 )
(923 )
(92 )
72,498  

—  
—  
—  
—  
—  
72,498  

Direct Sales

Product revenue from direct roxadustat product sales to distributors in China is recognized in an amount that reflects the consideration that the Company 
expects to be entitled to in exchange for those products, net of sales rebates and discounts. 

The total discounts and rebates were $0.7 million, $1.7 million and $16.4 million for the years ended December 31, 2022, 2021 and 2020, respectively. The 
discounts and rebates consisted of the contractual sales rebate calculated based on the stated percentage of gross sales by each distributor in the distribution 
agreement entered between FibroGen and each distributor. The contractual sales rebate was $0.6 million, $0.8 million and $6.2 million, for the years ended 
December 31, 2022, 2021 and 2020, respectively. The discounts and rebates for the year ended December 31, 2021 also consisted of $1.0 million of price 
adjustments recorded based on government-listed price guidance and estimated channel inventory levels. In the second quarter of 2020, the Company 
amended the agreement with its pharmaceutical distributors, which triggered accounting modifications particularly related to the non-key account hospital 
listing award. As a result, for the year ended December 31, 2020, the non-key account hospital listing award was $9.3 million, which was recorded as a 
reduction to the revenue and calculated based on eligible non-key account hospital listings to date achieved by each distributor with certain requirements 
met during the period. All other rebates and discounts, including sales return allowance were immaterial for the periods presented. 

The rebates and discounts that the Company’s pharmaceutical distributors have earned are eligible to be applied against future sales orders, limited to 
certain maximums until such rebates and discounts are exhausted. These rebates and discounts are recorded as contract liabilities at the time they become 
eligible in the same period that the related revenue is recorded. Due to the Company’s legal right to offset, at each balance sheet date, the rebates and 
discounts are presented as reductions to gross accounts receivable from the distributor, or as a current liability to the distributor to the extent that the total 
amount exceeds the gross accounts receivable or when the Company expects to settle the discount in cash. The Company’s legal right to offset is calculated 
at the individual distributor level. The following table includes a roll-forward of the related contract liabilities (in thousands):

Product revenue - Direct sales - 
contract liabilities

  $

(3,176 )   $

(653 )   $

3,222     $

217     $

(390 )

Balance at
December 31, 2021

Additions

Deduction

Currency
Translation
and Other

Balance at
December 31, 2022

132

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
 
     
     
   
 
     
     
   
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
 
 
   
   
   
   
 
 
The above contract liabilities were included in accrued and other current liabilities in the consolidated balance sheet. As of December 31, 2022 and 2021, 
the total rebates and discounts reflected as reductions to gross accounts receivable for direct sales was $0.9 and $1.1 million, respectively.

Sales to Falikang – China Performance Obligation

Since Falikang became fully operational in January 2021, substantially all direct roxadustat product sales to distributors in China are made by Falikang. 
FibroGen Beijing manufactures and supplies commercial product to Falikang. The net transaction price for FibroGen Beijing’s product sales to Falikang is 
based on a gross transaction price, which is adjusted to account for the 50/50 profit share for the period. 

The roxadustat sales to Falikang marked the beginning of the Company’s China performance obligation under the Company’s agreements with 
AstraZeneca. Product revenue is based on the transaction price of the China performance obligation. Revenue is recognized when control of the product is 
transferred to Falikang, in an amount that reflects the allocation of the transaction price to the performance obligation satisfied during the reporting period. 
Any net transaction price in excess of the revenue recognized is added to the deferred balance to date, and will be recognized over future periods as the 
performance obligations are satisfied. 

Periodically, the Company updates its assumptions such as total sales quantity, performance period and other inputs including foreign currency translation 
impact, among others. Following updates to its estimates, the Company recognized $2.3 million from the previously deferred revenue of the China 
performance obligation during the year ended December 31, 2022. The product revenue recognized for the year ended December 31, 2022 included an 
increase in revenue of $1.4 million resulting from changes to estimated variable consideration in the current period relating to performance obligations 
satisfied in previous periods. 

Comparatively, following updates to its estimates, the Company deferred $27.2 million from the net transaction price to Falikang, which was included in 
the related deferred revenue of the China performance obligation during the year ended December 31, 2021. 

The following table includes a roll-forward of the related deferred revenue that is considered as a contract liability (in thousands):
Currency
Translation
and Other

Recognized as 
Revenue

December 31, 2021    

Balance at

Additions

Balance at
December 31, 2022  

Product revenue - AstraZeneca China 
   performance obligation - deferred revenue

  $

(171,516 )   $

(77,195 )

  $

71,167     $

1,898     $

(175,646 )

Deferred revenue includes amounts allocated to the China performance obligation under the AstraZeneca arrangement as revenue recognition associated 
with this unit of accounting is tied to the commercial launch of the products within China and to when the control of the manufactured commercial products 
is transferred to AstraZeneca. As of December 31, 2022, approximately $21.0 million of the above deferred revenue related to the China unit of accounting 
was included in short-term deferred revenue, which represents the amount of deferred revenue associated with the China unit of accounting that is expected 
to be recognized within the next 12 months, associated with the commercial sales in China.

Due to the Company’s legal right to offset, at each balance sheet date, the rebates and discounts, mainly related to profit sharing, are presented as 
reductions to gross accounts receivable from Falikang, which was $0.5 million and $13.4 million as of December 31, 2022 and 2021, respectively.

Drug Product Revenue 

Drug product revenue from commercial-grade API or bulk drug product sales to Astellas and AstraZeneca was as follows for the years ended December 31, 
2022, 2021 and 2020 (in thousands): 

Astellas Japan Agreement
Astellas Europe Agreement
AstraZeneca U.S./RoW Agreement

Drug product revenue

2022

2021

2020

Years Ended December 31,

9,480     $
1,606    
—    
11,086     $

  $

2,056  
1,130    
(2,224 )    
962     $

4,281  
—  
4,625  
8,906  

  $

  $

133

 
 
 
 
   
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Astellas Japan Agreement

During the year ended December 31, 2020, the Company fulfilled shipment obligations under the terms of Astellas Japan Amendment with Astellas, and 
recognized related drug product revenue of $8.2 million in the same period. During the year ended December 31, 2020, the Company updated its estimate 
of variable consideration related to the API shipments fulfilled under the terms of the Astellas Japan Amendment, and accordingly recorded a reduction of 
$4.0 million to the drug product revenue. Specifically, the change in estimated variable consideration was based on the API held by Astellas at the period 
end, adjusted to reflect the changes in the estimated bulk product strength mix intended to be manufactured by Astellas, estimated cost to convert the API 
to bulk product tablets, and estimated yield from the manufacture of bulk product tablets, among others. 

During the year ended December 31, 2021, the Company updated its estimate of variable consideration related to the API shipments fulfilled under the 
terms of Astellas Japan Amendment, and accordingly recorded adjustments to the drug product revenue of $2.1 million. Specifically, the change in 
estimated variable consideration was based on the API held by Astellas at period end, adjusted to reflect the changes in the estimated bulk product strength 
mix intended to be manufactured by Astellas, estimated cost to convert the API to bulk product tablets, and estimated yield from the manufacture of bulk 
product tablets, among others. 

During the first quarter of 2022, the Company fulfilled a shipment obligation under the terms of Astellas Japan Amendment, and recognized related drug 
product revenue of $9.8 million in the same period. During the fourth quarter of 2022, the Company fulfilled a shipment obligation under the terms of 
Astellas Japan Amendment, and recognized related drug product revenue of $8.4 million in the same period.

In addition, the Company updated its estimate of variable consideration related to the API shipments fulfilled under the terms of Japan Amendment with 
Astellas, and recorded a reduction to the drug product revenue of $8.7 million during the year ended December 31, 2022. Specifically, the change in 
estimated variable consideration was based on the API held by Astellas at period end, adjusted to reflect foreign currency translation impact, the changes in 
the estimated bulk product strength mix intended to be manufactured by Astellas, estimated cost to convert the API to bulk product tablets, and estimated 
yield from the manufacture of bulk product tablets, among others. This amount was included in accrued liabilities and as of December 31, 2022, the related 
balance in accrued liabilities was $6.5 million, representing the Company’s best estimate that this amount will be paid within the next 12 months.

Astellas Europe Agreement

During the fourth quarter of 2020, the Company transferred bulk drug product from process validation supplies for commercial purposes under the terms of 
the Astellas Europe Agreement. As a result, the Company recorded $6.0 million as deferred revenue as of December 31, 2020, due to a high degree of 
uncertainty associated with the final consideration. 

During the first quarter of 2021, the Company transferred bulk drug product from process validation supplies for commercial purposes under the terms of 
the Astellas Europe Agreement and the Astellas EU Supply Agreement. The Company recorded the consideration of $11.8 million from this inventory 
transfer as deferred revenue as of December 31, 2021, due to a high degree of uncertainty associated with the final consideration. During the fourth quarter 
of 2021, the Company transferred bulk drug product for commercial purposes under the terms of the Astellas Europe Agreement and the Astellas EU 
Supply Agreement, and recognized the related fully-burdened manufacturing costs of $1.0 million as drug product revenue, and recorded $8.3 million as 
deferred revenue as of December 31, 2021, due to a high degree of uncertainty associated with the final consideration. 

During the fourth quarter of 2021, the Company updated its estimate of variable consideration related to the bulk drug product inventory transfers fulfilled 
under the terms of the Astellas Europe Agreement and the Astellas EU Supply Agreement, and recorded an unbilled contract asset of $49.8 million, which 
was offset by related deferred revenue under the Astellas Europe Agreement and Astellas EU Supply Agreement. Specifically, the change in estimated 
variable consideration was based on the bulk drug product held by Astellas at the period end, adjusted to reflect the changes in the estimated transfer price, 
among others. 

During the second quarter of 2022, the Company transferred bulk drug product for commercial purposes under the terms of the Astellas Europe Agreement 
and the Astellas EU Supply Agreement, and recognized the related fully-burdened manufacturing costs of $1.0 million as drug product revenue, and 
recorded $23.2 million as deferred revenue due to a high degree of uncertainty associated with the variable consideration for revenue recognition purposes. 

134

 
During the first quarter of 2022, the Company billed and received $49.2 million from Astellas related to the annual transfer price true up for bulk drug 
product transferred for commercial purposes. This amount was recorded in deferred revenue and netted against an unbilled contract asset as of December 
31, 2021. The Company updated its estimate of variable consideration related to the bulk drug product transferred in prior years. Specifically, the change in 
estimated variable consideration was based on the bulk drug product held by Astellas at the period end, adjusted to reflect the changes in the estimated 
transfer price, forecast information, shelf-life estimates and other items. As a result, during the year ended December 31, 2022, the Company reclassified a 
total of $57.4 million from the related deferred revenue to accrued liabilities. As of December 31, 2022, the related balance in accrued liabilities was $57.4 
million, representing the Company’s best estimate that this amount will be paid within the next 12 months. 

In addition, the Company recognized royalty revenue of $0.6 million and $0.2 million as drug product revenue from the deferred revenue under the 
Astellas Europe Agreement during the years ended December 31, 2022 and 2021, respectively. The remainder of the deferred revenue will be recognized as 
and when uncertainty is resolved, based on the performance of roxadustat product sales in the Astellas territory.

AstraZeneca U.S./RoW Agreement

During the first half of 2021 and during the year ended December 31, 2020, the Company shipped bulk drug product to AstraZeneca as commercial supply 
under the terms of the Master Supply Agreement. Based on the complete response letter issued by the U.S. Food and Drug Administration in August 2021, 
the Company evaluated the impact of these developments in revising its estimates of variable consideration associated with drug product revenue. As a 
result, the Company updated the estimated transaction price for these shipments, and recorded $11.2 million as deferred revenue as of December 31, 2021. 
The related drug product revenue was $(2.2) million and $4.6 million for the years ended December 31, 2021 and 2020, respectively.

During the first quarter of 2022, the Company evaluated the current developments in the U.S. market, and updated its estimates of variable consideration 
associated with bulk drug product shipments to AstraZeneca in prior years as commercial supply. As a result, during the year ended December 31, 2022, 
the Company reclassified $11.2 million from the related deferred revenue to accrued liabilities. As of December 31, 2022, the related balance in accrued 
liabilities was $11.2 million, representing its best estimate that this amount will be paid within the next 12 months.

The following table includes a roll-forward of the above-mentioned deferred revenues that are considered as contract liabilities related to drug product (in 
thousands):

Astellas Japan Agreement
Astellas Europe Agreement
AstraZeneca U.S./RoW Agreement

Drug product revenue - deferred revenue

Balance at
December 31, 
2021

Additions

Recognized as 
Revenue

Reclassified to 
Accrued 
Liability / 
Accounts 
Payable

Balance at
December 31, 
2022

  $

  $

(1,974 )   $
(25,891 )  
(11,171 )  
(39,036 )   $

(2,226 )
(72,408 )
—  
(74,634 )

  $

  $

—     $
619    
—    
619     $

4,200  
57,377  
11,171  
72,748  

  $

  $

—  
(40,303 )
—  
(40,303 )

135

 
 
 
 
   
   
   
   
 
   
 
   
 
   
   
 
   
 
   
 
Eluminex Agreements

In July 2021, FibroGen exclusively licensed to Eluminex Biosciences (Suzhou) Limited (“Eluminex”) global rights to its investigational biosynthetic 
cornea derived from recombinant human collagen Type III.

Under the terms of the agreement with Eluminex, as amended and restated on January 21, 2022, Eluminex made an $8.0 million upfront payment to 
FibroGen during the first quarter of 2022, which was recognized as license revenue for the performance obligation satisfied and included in license revenue 
in the consolidated statement of operations during the year ended December 31, 2021. 

In addition, FibroGen may receive up to a total of $64.0 million in future manufacturing, clinical, regulatory, and commercial milestone payments for the 
biosynthetic cornea program, as well as $36.0 million in commercial milestones for the first recombinant collagen III product that is not the biosynthetic 
cornea. FibroGen will also be eligible to receive mid single-digit to low double-digit royalties based upon worldwide net sales of cornea products, and low 
single-digit to mid single-digit royalties based upon worldwide net sales of other recombinant human collagen type III products that are not cornea 
products.

The Company accounted for this agreement under ASC 606 and identified one performance obligation at inception of the agreement related to the granting 
of the license rights to the investigational biosynthetic cornea derived from recombinant human collagen Type III. The Company based its assessment on 
the determination that Eluminex can benefit from the granted license on its own by developing and commercializing the underlying product using its own 
resources. All components of the transaction price in the agreement were allocated to the single performance obligation. The remaining future variable 
consideration related to future manufacturing, clinical, regulatory milestone payments as described above were fully constrained because the Company 
cannot conclude that it is probable that a significant reversal of the amount of cumulative revenue recognized will not occur, given the inherent 
uncertainties of success with these future milestones. For commercial milestones and royalties, the Company determined that the license is the predominant 
item to which the royalties or sales-based milestones relate and revenue will be recognized when the corresponding milestones and royalties are earned.

During the first quarter of 2022, FibroGen and Eluminex entered into a separate contract manufacturing agreement, under which the Company is 
responsible for supplying the cornea product at cost plus 10% of its product manufacturing costs until its manufacturing technology is fully transferred to 
Eluminex. Supply of the cornea product will be managed by a separate agreement and is considered a separate performance obligation. The related contract 
manufacturing revenue was recorded as other revenue and included in development and other revenue in the consolidated statement of operations. 

Amounts recognized as revenue under the agreements with Eluminex were as follows for the years ended December 31, 2022 and 2021 (in thousands):

Agreement
Eluminex

  Performance Obligation
  License revenue
  Other revenue - contract manufacturing

Years Ended December 31,

2022

2021

  $
  $

—     $
1,761     $

8,000  
—  

4. Equity method investment - Variable Interest Entity

Falikang is a distribution entity jointly owned by AstraZeneca and FibroGen Beijing. FibroGen Beijing owns 51.1% of the outstanding shares of Falikang. 

Pursuant to the guidance under ASC 810, the Company concluded that Falikang qualifies as a VIE. As Falikang is a distribution entity and AstraZeneca is 
the final decision maker for all the roxadustat commercialization activities, the Company lacks the power criterion, while AstraZeneca meets both the 
power and economic criteria under the ASC 810 to direct the activities of Falikang that most significantly impact its performance. Therefore, the Company 
is not the primary beneficiary of this VIE for accounting purposes. As a result, the Company accounts for its investment in Falikang under the equity 
method, and Falikang is not consolidated into the Company’s consolidated financial statements. The Company records its total investments in Falikang as 
an equity method investment in an unconsolidated VIE in the consolidated balance sheet. In addition, the Company recognizes its proportionate share of 
the reported profits or losses of Falikang as investment gain or loss in unconsolidated VIE in the consolidated statement of operations and as an adjustment 
to its investment in Falikang in the consolidated balance sheet. Falikang has not incurred material profit or loss to date. The Company may provide 
shareholder loans to Falikang to meet necessary financial obligations as part of its operations. To date, there has been no such loans. 

136

 
 
 
 
 
 
 
 
 
 
 
 
 
The Company’s equity method investment in Falikang was as follows for the year ended December 31, 2022 (in thousands):

Entity

Falikang

Ownership 
Percentage

Balance at
December 31, 2021

Share of Net Income    

Currency
Translation

Balance at
December 31, 2022

51.1 %   $

3,825     $

1,573     $

(337 )   $

5,061  

Falikang is considered as a related party to the Company. See Note 14, Related Party Transactions, for related disclosures.

On an ongoing basis, the Company re-evaluates the VIE assessment based on changes in facts and circumstances, including but not limited to, the 
shareholder loans received by Falikang and the execution of any future significant agreements between Falikang and its shareholders and/or other third 
parties.

The Company assessed the impairment of its equity method investment whenever events or changes in circumstances indicate that a decrease in value of 
the investment has occurred that is other than temporary.

5.

Fair Value Measurements

In accordance with the authoritative guidance on fair value measurements and disclosures under U.S. GAAP, the Company presents all financial assets and 
liabilities and any other assets and liabilities that are recognized or disclosed at fair value on a nonrecurring basis. The guidance defines fair value, 
establishes a framework for measuring fair value in generally accepted accounting principles and expands disclosures about fair-value measurements. The 
guidance also requires fair value measurements be classified and disclosed in one of the following three categories:

Level 1: Quoted prices in active markets for identical assets or liabilities.

Level 2: Observable inputs other than quoted prices in active markets for identical assets or liabilities.

Level 3: Unobservable inputs.

The Company values certain assets and liabilities, focusing on the inputs used to measure fair value, particularly in instances where the measurement uses 
significant unobservable (Level 3) inputs. The Company’s financial instruments are valued using quoted prices in active markets (Level 1) or based upon 
other observable inputs (Level 2). The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires 
management to make judgments and considers factors specific to the asset or liability. In addition, the categories presented do not suggest how prices may 
be affected by the size of the purchases or sales, particularly with the largest highly liquid financial issuers who are in markets continuously with non-
equity instruments, or how any such financial assets may be impacted by other factors such as U.S. government guarantees. Assets and liabilities measured 
at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The availability of observable 
data is monitored to assess appropriate classification of financial instruments within the fair value hierarchy. Depending upon the availability of such 
inputs, specific securities may transfer between levels. In such instances, the transfer is reported at the end of the reporting period.

137

 
 
 
 
 
   
   
 
 
 
The fair values of the Company’s financial assets that are measured on a recurring basis are as follows (in thousands):

Money market funds
Corporate bonds
Commercial paper
U.S. government bonds
Agency bonds
Asset-backed securities
Foreign government bonds
Convertible promissory note

Total

Money market funds
Corporate bonds
Commercial paper
U.S. government bonds
Agency bonds
Asset-backed securities
Foreign government bonds

Total

Level 1

Level 2

Level 3

Total

December 31, 2022

19,881     $
—    
—    
98,972    
—    
—    
—    
—    
118,853     $

—     $

82,008    
57,381    
12,373    
11,468    
2,474    
4,980    
—    
170,684     $

—     $
—    
—    
—    
—    
—    
—    
1,000    
1,000     $

19,881  
82,008  
57,381  
111,345  
11,468  
2,474  
4,980  
1,000  
290,537  

Level 1

Level 2

Level 3

Total

December 31, 2021

58,801     $
—    
—    
91,522    
—    
—    
—    
150,323     $

—     $

182,646    
69,079    
—    
23,275    
27,087    
9,154    
311,241     $

—     $
—    
—    
—    
—    
—    
—    
—     $

58,801  
182,646  
69,079  
91,522  
23,275  
27,087  
9,154  
461,564  

  $

  $

  $

  $

The Company’s Level 2 investments are valued using third-party pricing sources. The pricing services utilize industry standard valuation models, including 
both income and market-based approaches, for which all significant inputs are observable, either directly or indirectly, to estimate fair value. These inputs 
include reported trades of and broker/dealer quotes on the same or similar investments, issuer credit spreads, benchmark investments, prepayment/default 
projections based on historical data and other observable inputs. During the year ended December 31, 2022, the transfers of assets between levels was a 
total of $10.5 million transfer from Level 1 to Level 2 as such US treasury notes and bills were changed to off-the-run when they were issued before the 
most recent issue and were still outstanding at measurement day. There were no transfers of assets between levels for the years ended December 31, 2021 
and 2020.

6. Leases

The Company’s long-term property lease with Alexandria for its corporate headquarters in San Francisco, California, had an initial term of 15 years, 
scheduled to expire in 2023. The original lease was accounted for as a finance lease. 

On June 1, 2021, the Company entered into an amendment with Alexandria to extend the lease to 2028 (“Lease Amendment”). Under the terms of the 
Lease Amendment, the Company has two optional rights to each extend the lease for an additional five years. The lease contract provides for a fixed annual 
rent, with scheduled increases of two percent that occur on each anniversary of the rent commencement date through 2023, and with scheduled increases of 
three percent that occur on each anniversary of the rent commencement date through 2028. This lease requires the Company to pay all costs of ownership, 
operation, and maintenance of the premises, including without limitation all operating costs, insurance costs, and taxes. 

The Company determined that the Lease Amendment was a lease modification, effective June 1, 2021, and thus reassessed the lease classification, 
remeasured the related lease liability using an updated discount rate, and adjusted the related right-of-use asset under the lease modification guidance under 
the ASC 842. Accordingly, on June 1, 2021, the Company determined that the modified lease be accounted for as an operating lease, and therefore 
derecognized the previous finance lease right-of-use asset of $24.6 million and the related finance lease liability of $32.6 million, and recognized an 
operating lease right-of-use asset of $93.2 million and the related operating lease liability of $101.2 million. Starting June 1, 2021, the cash payment related 
to this lease was classified as an operating activity.

138

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
During the first quarter of 2021, after FibroGen Beijing’s previous long-term lease agreement expired, the Company entered into a new lease agreement 
with the landlord for the same pilot plant located in Beijing Yizhuang Biomedical Park of BDA. The new lease term is five year, scheduled to expire in 
2026, and is treated as an operating lease. Accordingly, the Company recorded $3.4 million in the operating right-of-use assets and total operating lease 
liabilities, respectively. The lease contract provides for fixed quarterly rent payments, and requires the Company to pay operating and maintenance costs.

The Company currently has several additional real estate leases for office spaces in Shanghai and Beijing, China, which are treated as operating leases. 
These leases have lease terms ranging from one to five years, expiring in 2025. These lease contracts provide for fixed quarterly rent payments, and require 
the Company to pay operating and maintenance costs, and a fixed amount for property management fees. 

In addition, the Company has several immaterial lease arrangements in China and U.S. for office equipment, scientific devices and automobile leases, with 
contracted lease terms ranging from one to five years, treated as finance leases or operating leases.  

The Company’s lease assets and related lease liabilities were as follows (in thousands):

Balance Sheet Line Item

December 31,

2022

2021

Assets
Finance:
Right-of-use assets cost
Accumulated amortization

Finance lease right-of-use assets, net

Other assets

Operating:
Right-of-use assets cost
Accumulated amortization

Operating lease right-of-use assets, net

Operating lease right-of-use assets

Total lease assets

Liabilities
Current:
Finance lease liabilities
Operating lease liabilities
Non-current:
Finance lease liabilities
Operating lease liabilities
Total lease liabilities

Accrued and other current liabilities
Operating lease liabilities, current

Other long-term liabilities
Operating lease liabilities, non-current

  $

  $

  $

  $

2,367     $
(1,932 )    
435      

101,990      
(22,097 )    
79,893      
80,328     $

36     $
10,292      

137      
79,593      
90,058     $

2,165  
(1,404 )
761  

100,912  
(9,800 )
91,112  
91,873  

11  
10,944  

3  
88,776  
99,734  

The components of lease expense were as follows (in thousands):

Finance lease cost:
Amortization of 
   right-of-use assets

Interest on lease liabilities

Operating lease cost

Sublease income
Total lease cost

Statement of Operations Line Item

Cost of goods sold; 
Research and development; 
Selling, general and administrative expenses
Interest expense
Cost of goods sold; 
Research and development; 
Selling, general and administrative expenses
Selling, general and administrative expenses

139

2022

Years Ended December 31,
2021

2020

$

587  

$

4,639  

$

10,369  

—    

628    

1,932  

17,125  
(3,373 )  
14,339     $

10,722  
(1,271 )  
14,718     $

1,151  
(1,201 )
12,251  

  $

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
     
   
 
   
 
   
   
 
 
 
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
     
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Supplemental cash flow information related to leases were as follows (in thousands):

Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases
Operating cash flows from finance leases
Financing cash flows from finance leases
Non-cash: Right-of-use assets obtained in exchange for new lease liabilities:
Finance leases
Operating leases
Non-cash: Increase (decrease) resulting from lease modification:
Finance lease right-of-use assets
Operating lease right-of-use assets
Finance lease liabilities, current
Operating lease liabilities, current
Finance lease liabilities, non-current
Operating lease liabilities, non-current

Lease term and discount rate were as follows:

Weighted-average remaining lease term (years):
Finance leases
Operating leases
Weighted-average discount rate:
Finance leases
Operating leases

Maturities of lease liabilities as of December 31, 2022 are as follows (in thousands):

Year Ending December 31,
2023
2024
2025
2026
2027
Beyond 2027
Total future lease payments
Less: Interest
Present value of lease liabilities

7. Balance Sheet Components

Cash and Cash Equivalents

Cash and cash equivalents consisted of the following (in thousands):

Cash
Commercial paper
Money market funds

Total cash and cash equivalents

  $

  $

  $

  $

2022

Years Ended December 31,
2021

2020

  $

15,497     $

2    
135    

261    
1,704    

—    
—    
—    
—    
—    
—     $

  $

10,022     $
629    
5,489    

450    
3,585    

(24,654 )  
93,222    
(12,587 )  
9,221    
(20,009 )  
91,943     $

951  
1,896  
12,620  

662  
1,072  

—  
—  
—  
—  
—  
—  

December 31,

2022

2021

4.9    
5.8    

6.20 % 
4.75 % 

1.1  
6.8  

4.64 %
4.75 %

Finance Leases

Operating Leases

44     $
41    
40    
39    
36    
—    
200    
(27 )  
173     $

13,915  
17,302  
18,448  
18,000  
18,476  
17,400  
103,541  
(13,656 )
89,885  

December 31,

2022

2021

135,819     $
—    
19,881    
155,700     $

111,422  
1,000  
58,801  
171,223  

At December 31, 2022 and 2021, a total of $92.5 million and $91.2 million, respectively, of the Company’s cash and cash equivalents were held outside of 
the U.S. in its foreign subsidiaries to be used primarily for its China operations.

140

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Investments

The Company’s investments consist primarily of available-for-sale debt investments. The amortized cost, gross unrealized holding gains or losses, and fair 
value of the Company’s investments by major investments type are summarized in the tables below (in thousands):

Corporate bonds
Commercial paper
U.S. government bonds
Agency bonds
Asset-backed securities
Foreign government bonds
Convertible promissory note

Total investments

Corporate bonds
Commercial paper
U.S. government bonds
Agency bonds
Asset-backed securities
Foreign government bonds

Total investments

Amortized Cost

Gross Unrealized
Holding Gains

Gross Unrealized
Holding Losses

Estimated
Fair Value

December 31, 2022

83,080     $
57,381    
112,547    
11,690    
2,484    
5,007    
1,000    
273,189     $

—     $
—    
5    
—    
—    
—    
—    
5     $

(1,072 )   $
—    
(1,207 )  
(222 )  
(10 )  
(27 )  
—    
(2,538 )   $

82,008  
57,381  
111,345  
11,468  
2,474  
4,980  
1,000  
270,656  

Amortized Cost

Gross Unrealized
Holding Gains

Gross Unrealized
Holding Losses

Estimated
Fair Value

December 31, 2021

183,136     $
68,079    
91,840    
23,339    
27,105    
9,165    
402,664     $

2     $

—    
—    
—    
—    
—    
2     $

(492 )   $
—    
(318 )  
(64 )  
(18 )  
(11 )  
(903 )   $

182,646  
68,079  
91,522  
23,275  
27,087  
9,154  
401,763  

  $

  $

  $

  $

The following table summarizes, for all available for sale securities in an unrealized loss position, the fair value and gross unrealized loss by length of time 
the security has been in a continual unrealized loss position (in thousands):

Corporate bonds
U.S. government bonds
Agency bonds
Asset-backed securities
Foreign government bonds

Total

Corporate bonds
U.S. government bonds
Agency bonds
Asset-backed securities
Foreign government bonds

Total

  $

  $

  $

  $

Less than 12 Months

December 31, 2022
12 Months or More

Total

Estimated
Fair Value

Gross Unrealized
Holding Losses

Estimated
Fair Value

Gross Unrealized
Holding Losses

Estimated
Fair Value

Gross Unrealized
Holding Losses

6,738     $
22,326      
—      
2,474      
—      
31,538     $

(147 )   $
(13 )    
—  
(10 )    
—  
(170 )   $

75,270     $
67,909      
11,468      
—      
4,980      
159,627     $

(925 )   $
(1,194 )    
(222 )    
—      
(27 )    
(2,368 )   $

Less than 12 Months

December 31, 2021
12 Months or More

(1,072 )
(1,207 )
(222 )
(10 )
(27 )
(2,538 )

82,008     $
90,235      
11,468      
2,474      
4,980      
191,165     $

Total

Estimated
Fair Value

Gross Unrealized
Holding Losses

Estimated
Fair Value

Gross Unrealized
Holding Losses

Estimated
Fair Value

Gross Unrealized
Holding Losses

177,124     $
91,522      
23,274      
27,087      
9,155      
328,162     $

(492 )   $
(318 )    
(64 )    
(18 )    
(11 )    
(903 )   $

141

—     $
—      
—      
—      
—      
—     $

—     $
—      
—      
—      
—      
—     $

177,124     $
91,522      
23,274      
27,087      
9,155      
328,162     $

(492 )
(318 )
(64 )
(18 )
(11 )
(903 )

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
 
   
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
   
   
   
   
   
   
 
   
     
 
   
     
     
     
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
   
   
   
   
 
The contractual maturities of the available-for-sale investments were as follows (in thousands):

Within one year - Bond and mutual funds
After one year through three years

Total investments

December 31, 2022

Amortized Cost

Estimated
Fair Value

  $

  $

268,709     $
4,480    
273,189     $

266,308  
4,348  
270,656  

The Company periodically reviews its available-for-sale investments for other-than-temporary impairment. The Company considers factors such as the 
duration, severity and the reason for the decline in value, the potential recovery period and its intent to sell. For debt securities, the Company also considers 
whether (i) it is more likely than not that the Company will be required to sell the debt securities before recovery of their amortized cost basis, and (ii) the 
amortized cost basis cannot be recovered as a result of credit losses. During the three years ended December 31, 2022, the Company did not recognize any 
other-than-temporary impairment loss.

Inventories

Inventories consisted of the following (in thousands):

Raw materials
Work-in-progress
Finished goods

Total inventories

December 31,

2022

2021

  $

  $

1,241     $
36,003    
3,192    
40,436     $

1,363  
21,499  
8,153  
31,015  

The provision to write-down excess and obsolete inventory were immaterial as of December 31, 2022 and December 31, 2021.

Prepaid expenses and other current assets

Prepaid expenses and other current assets consisted of the following (in thousands):

Contract assets
Deferred revenues from associated contracts

Net unbilled contract assets

Prepaid assets
Other current assets

Total prepaid expenses and other current assets

December 31,

2022

2021

17,488     $
(17,488 )  
—    
9,730    
4,353    
14,083     $

66,909  
(58,909 )
8,000  
7,383  
5,070  
20,453  

  $

  $

The unbilled contract assets of $17.5 million as of December 31, 2022 was related to unbilled co-development revenue under the AstraZeneca China 
Amendment. The unbilled contract assets as of December 31, 2021 included $49.8 million related to transfer price true up for bulk drug product under the 
Astellas Europe Agreement, $9.1 million related to unbilled co-development revenue under the AstraZeneca China Amendment, and the $8.0 million 
unbilled upfront license payment under the Eluminex Agreement. See the Eluminex Agreements section in Note 3, Collaboration Agreements, License 
Agreement and Revenues, for details.

142

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Property and Equipment

Property and equipment consisted of the following (in thousands):

Leasehold improvements
Laboratory equipment
Machinery
Computer equipment
Furniture and fixtures
Construction in progress

Total property and equipment
Less: accumulated depreciation
Property and equipment, net

December 31,

2022

2021

102,580     $
21,175    
9,642    
9,486    
6,200    
204    
149,287     $
(128,682 )  

20,605     $

103,352  
19,300  
8,339  
9,670  
6,201  
2,423  
149,285  
(121,008 )
28,277  

  $

  $

  $

Depreciation expense for the years ended December 31, 2022, 2021 and 2020 was $10.0 million, $10.2 million and $11.7 million, respectively.

Accrued and Other Current Liabilities

Accrued and other current liabilities consisted of the following (in thousands):

Preclinical and clinical trial accruals
API and bulk drug product price true-up
Acquired in-process research and development asset
Payroll and related accruals
Accrued co-promotion expenses - current
Contract liabilities to pharmaceutical distributors
Roxadustat profit share to AstraZeneca
Property taxes and other taxes
Professional services
Other

Total accrued and other current liabilities

December 31,

2022

2021

57,780     $
75,055    
—    
22,562    
36,677    
390    
7,280    
7,691    
5,480    
6,858    
219,773     $

56,283  
—  
35,000  
20,909  
25,746  
3,176  
7,895  
12,610  
6,074  
4,906  
172,599  

  $

  $

The accrued liabilities of $75.1 million for API and bulk drug product price true-up as of December 31, 2022 resulted from changes in estimated variable 
consideration of $6.5 million associated with the API shipments fulfilled under the terms of the Astellas Japan Amendment, $57.4 million associated with 
the bulk drug product transferred under the terms of the Astellas Europe Agreement and the Astellas EU Supply Agreement, and $11.2 million associated 
with the bulk drug product shipments to AstraZeneca under the terms of the AstraZeneca Master Supply Agreement. See the Drug Product Revenue section 
in Note 3, Collaboration Agreements, License Agreement and Revenues, for details.

The acquired IPR&D asset of $35.0 million as of December 31, 2021 was related to the upfront payment to HiFiBiO under the HiFiBiO Agreement. See 
Note 2, Summary of Significant Accounting Policies - License Acquisition Agreement, for details.

143

 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8. Liability Related to Sale of Future Revenues

On November 4, 2022, the Company entered into a Revenue Interest Financing Agreement (the “RIFA”) with NQ Entity, L.P. (“NovaQuest”), pursuant to 
which the Company granted a percentage interest in the Company’s future revenues under the Astellas Agreements, for a consideration of $50.0 million 
(“Investment Amount”) before advisory fees. The Company has evaluated the terms of the RIFA and concluded that the Investment Amount should be 
accounted for as debt because the risks and rewards to NovaQuest are limited by the terms of the transaction.

Under the terms of the Astellas Agreements, the Company is entitled to drug product revenue and milestone payments upon occurrence of certain events. 
See the Astellas Agreements section in Note 3, Collaboration Agreements, License Agreement and Revenue, for details. 

Effective as of November 2022, the Company sold to NovaQuest 22.5% of its drug product revenue and 10.0% (20.0% for fiscal year 2028 and thereafter) 
of its revenue from milestone payments under the Astellas Agreements. The Company received $49.8 million from NovaQuest at an initial funding on 
November 17, 2022, representing the gross proceeds of $50.0 million (the “Initial Investment Amount”) net of initial issuance costs, and accounted for this 
transaction as long-term debt as of December 31, 2022.

The Company may prepay its obligations to NovaQuest in full at any time during the term of RIFA. The prepayment amount varies from $80.0 million to 
$125.0 million less any revenue interest payments made up to such prepayment date. Under the RIFA the Company shall pay to NovaQuest up to a 
specified maximum amount (“Payment Cap”) of (a) $100.0 million, if the payment is made on or before December 31, 2028; (b) $112.5 million, if the 
payment is made is on or after January 1, 2029, but on or before December 31, 2029; or (c) $125.0 million, if the payment is made after January 1, 2030.

After January 1, 2028, if the product (as defined) is not commercialized for a consecutive twelve-month period, then, the payments owed under the RIFA 
by the Company to NovaQuest for each fiscal year shall be the greater of: (i) the amount which would otherwise be due pursuant to revenue interest 
payments terms; or (ii) $10.0 million.

Before December 31, 2028, if the sum of all payments under the RIFA paid to NovaQuest, does not equal or exceed $62.5 million, then the Company shall 
pay NovaQuest the difference of these two amounts by no later than March 1, 2029 (“True-Up Payment One”). If, by no later than December 31, 2030, the 
sum of all payments under the RIFA paid to NovaQuest does not equal or exceed $125.0 million, then the Company shall pay NovaQuest the difference of 
these two amounts by no later than March 1, 2031.

NovaQuest will retain this entitlement until it has reached the Payment Cap, at which point 100% of such revenue interest on future global net sales of 
Astellas will revert to the Company.

The payments to NovaQuest will be accounted for as a reduction of debt. The total debt discount and transaction costs of $1.7 million, will be amortized as 
interest expense based on the projected balance of the liability as of the beginning of each period. The Company estimated an effective annual interest rate 
of approximately 19.67% for the year ended December 31, 2022. Over the course of the RIFA, the effective interest rate will be affected by the amount and 
timing of drug product revenue and revenue from milestone payments recognized, the changes in the timing of forecasted drug product revenue and 
revenue from milestone payments, and the timing of the Company’s payments to NovaQuest. On a quarterly basis, the Company will reassess the expected 
total revenue and the timing of such revenue, recalculate the amortization of debt discount and transactions costs and effective interest rate, and adjust the 
accounting prospectively as needed.

As payments are made to NovaQuest, the balance of the liability related to sale of future revenues is being effectively repaid over the life of the RIFA. 

144

 
 
 
 
 
 
 
 
 
During the year ended December 31, 2022, the Company recognized, under Astellas Agreements, license revenue of $22.6 million and development 
revenue of $2.4 million related to a $25.0 million regulatory milestone, and drug product revenue of $11.1 million. See Note 3, Collaboration Agreements, 
License Agreement and Revenue, for details. During the year ended December 31, 2022, the Company recognized the related non-cash interest expense of 
$1.0 million.

The table below shows the activity of the liability related to sale of future revenues for the year ended December 31, 2022:

Liability related to sale of future revenues - beginning balance
Proceeds from sale of future revenues, gross
Less: Initial issuance costs
Less: Transaction costs
Interest expense recognized
Liability related to sale of future revenues - ending balance
Less: Current portion classified within accrued and other current liabilities

Liability related to sale of future revenues, non-current

Year Ended 
December 31, 2022

—  
50,000  
(250 )
(1,453 )
1,036  
49,333  
—  
49,333  

  $

  $

Based on the current estimates of drug product revenue and revenue from milestone payments under the Astellas Agreements, and taking into the 
consideration of the terms discussed above, the Company anticipates to reach a Payment Cap up to $125.0 million by 2031.

9.

Product Development Obligations

The Technology Development Center of the Republic of Finland (“TEKES”) product development obligations consist of 11 separate advances (each in the 
form of a note agreement) received by FibroGen Europe between 1996 and 2008 from TEKES. These advances are granted on a project-by-project basis to 
fund various product development efforts undertaken by FibroGen Europe only. Each separate note is denominated in EUR and bears interest (not 
compounded) calculated as one percentage point less than the Bank of Finland rate in effect at the time of the note, but no less than 3.0%.

If the research work funded by TEKES does not result in an economically profitable business or does not meet its technological objectives, TEKES may, on 
application from FibroGen Europe, forgive each of these loans, including accrued interest, either in full or in part. As of December 31, 2022 and 2021, the 
Company had U.S. Dollar equivalent of $10.1 million and $10.7 million of principal outstanding, respectively, and $6.8 million and $6.9 million of interest 
accrued, respectively, which were presented in the product development obligations line on the consolidated balance sheets.

The Company is not a guarantor of these loans, and these loans are not repayable by FibroGen Europe until it has distributable funds.

10. Commitments and Contingencies

Contract Obligations

As of December 31, 2022, the Company had the following outstanding non-cancelable purchase obligations (in thousands): 

Manufacture and supply of pamrevlumab
Manufacture and supply of roxadustat
Other purchases and programs

Total

Purchase Obligations 
Due In The Year Ending December 31,
2024

Total

2023

  $

  $

85    
6,126    
21,698    
27,909    

$

$

22,310     $
2,369    
1,167    
25,846     $

22,395  
8,495  
22,865  
53,755  

The Company expects to fulfill its commitments under these agreements in the normal course of business, and as such, no liability has been recorded.

See Note 6, Leases, for details of the Company's operating and finance lease payment obligations. See Note 8, Liability Related to Sale of Future Revenues, 
and Note 9, Product Development Obligations for details of the respective obligations.

145

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
Some of the Company’s license agreements provide for periodic maintenance fees over specified time periods, as well as payments by the Company upon 
the achievement of development, regulatory and commercial milestones. As of December 31, 2022, future milestone payments for research and preclinical 
stage development programs consisted of up to approximately $697.9 million in total potential future milestone payments under the Company’s license 
agreements with HiFiBiO (for Gal-9 and CCR8), Medarex, Inc. and others. These milestone payments generally become due and payable only upon the 
achievement of certain developmental, clinical, regulatory and/or commercial milestones. The event triggering such payment or obligation has not yet 
occurred.

Legal Proceedings and Other Matters

From time to time, the Company is a party to various legal actions, both inside and outside the U.S., arising in the ordinary course of its business or 
otherwise. The Company accrues amounts, to the extent they can be reasonably estimated, that the Company believes will result in a probable loss 
(including, among other things, probable settlement value) to adequately address any liabilities related to legal proceedings and other loss contingencies. A 
loss or a range of loss is disclosed when it is reasonably possible that a material loss will incur and can be estimated, or when it is reasonably possible that 
the amount of a loss, when material, will exceed the recorded provision. The Company did not have any material accruals for any active legal action in its 
consolidated balance sheet as of December 31, 2022, as the Company could not predict the ultimate outcome of these matters, or reasonably estimate the 
potential exposure.

Between April 2021 and May 2021, five putative securities class action complaints were filed against FibroGen and certain of its current and former 
executive officers (collectively, the “Defendants”) in the U.S. District Court for the Northern District of California. The lawsuits allege that Defendants 
violated the Securities Exchange Act of 1934 by making materially false and misleading statements regarding FibroGen’s Phase 3 clinical studies data and 
prospects for U.S. Food and Drug Administration approval. On August 30, 2021, the Court consolidated the actions and appointed a group of lead 
plaintiffs. Plaintiffs filed their consolidated amended complaint on October 29, 2021 and a corrected consolidated amended complaint on November 19, 
2021 (the “Complaint”). The Complaint alleges false and misleading statements between December 2018 and June 2021 and seeks to represent a class of 
persons or entities that purchased FibroGen securities between December 20, 2018 and July 15, 2021. On July 15, 2022, the court issued an order denying 
Defendants’ motions to dismiss. Defendants answered the Complaint on September 13, 2022 and discovery is ongoing. On January 27, 2023, Plaintiffs 
filed a motion for class certification. Defendants’ opposition is due April 28, 2023. 

On July 30, 2021, a purported shareholder derivative (the “California Federal Derivative”) complaint was filed in the U.S. District Court for the Northern 
District of California. The California Federal Derivative complaint names as defendants FibroGen’s current and former officers and directors, as well as 
FibroGen as nominal defendant, and asserts state and federal claims based on some of the same alleged misstatements as the securities class action 
complaint. The California Federal Derivative complaint seeks unspecified damages, attorneys’ fees, and other costs. On December 23, 2022, Plaintiff filed 
an amended complaint. On February 21, 2023, Defendants filed a motion to dismiss on the basis that the lawsuit was brought in the improper forum. 
Plaintiffs’ opposition is due April 7, 2023. On December 27, 2021, a second purported shareholder derivative (the “Delaware Federal Derivative”) 
complaint was filed in the U.S. District Court for the District of Delaware. The Delaware Federal Derivative complaint names FibroGen’s current and 
former officers and directors as defendants, as well as FibroGen as nominal defendant, and asserts state and federal claims based on some of the same 
alleged misstatements as the securities class action complaint, as well as allegations of insider trading against certain defendants. The Delaware Federal 
Derivative complaint seeks unspecified damages, attorneys’ fees, and other costs. The Delaware Federal Derivative action has been stayed pending 
resolution of any motions for summary judgment in the securities class action. On April 14, 2022, a third purported shareholder derivative (the “Delaware 
Chancery Derivative”) complaint was filed in the Delaware Court of Chancery. The Delaware Chancery Derivative complaint names substantially the same 
defendants as the other purported shareholder derivative actions and asserts similar claims based upon similar allegations. The Delaware Chancery 
Derivative complaint seeks unspecified damages, attorneys’ fees, and other costs. On January 17, 2023, Defendants moved to dismiss on the basis of 
demand futility. Plaintiffs’ opposition is due on March 17, 2023.

The Company believes that the claims are without merit and it intends to vigorously defend against them. However, any litigation is inherently uncertain, 
and any judgment or injunctive relief entered against FibroGen or any adverse settlement could materially and adversely impact its business, results of 
operations, financial condition, and prospects.

146

 
In the fourth quarter of 2021, the Company received a subpoena from the SEC requesting documents related to roxadustat’s pooled cardiovascular safety 
data. The Company is fully cooperating with the SEC. The Company cannot predict with any degree of certainty the outcome of the SEC’s investigation or 
determine the extent of any potential liabilities. The Company also cannot predict whether there will be any loss as a result of the investigation nor can it 
provide an estimate of the possible loss or range of loss. Any adverse outcome in this matter or any related proceeding could expose the Company to 
substantial damages, penalties, or reputational harm that may have a material adverse impact on the Company’s business, results of operations, financial 
condition, growth prospects, and price of its common stock.

Between August 3, 2022 and August 4, 2022, the Company’s Board of Directors received three litigation demands from purported shareholders of the 
Company, asking the Board of Directors to investigate and take action against certain current and former officers and directors of the Company for alleged 
wrongdoing based on the same allegations in the pending derivative and securities class action lawsuits. The Company may in the future receive such 
additional demands.

Starting in October 2021, certain challenges have been filed with the China National Intellectual Property Administration against patents which claim a 
crystalline form of roxadustat. Final resolution of such proceedings will take time and the Company could not predict the ultimate outcome, or reasonably 
estimate the potential exposure.

Indemnification Agreements

The Company enters into standard indemnification arrangements in the ordinary course of business, including for example, service, manufacturing and 
collaboration agreements. Pursuant to these arrangements, the Company indemnifies, holds harmless, and agrees to reimburse the indemnified parties for 
losses suffered or incurred by the indemnified party, including in connection with intellectual property infringement claims by any third party with respect 
to its technology. The term of these indemnification agreements is generally perpetual any time after the execution of the agreement. The Company has 
entered into indemnification agreements with its directors and officers that may require the Company to indemnify its directors and officers against 
liabilities that may arise by reason of their status or service as directors or officers to the extent permissible under applicable law. The maximum potential 
amount of future payments the Company could be required to make under these arrangements is not determinable. The Company has never incurred costs 
to defend lawsuits or settle claims related to these indemnification agreements. As a result, the Company believes the estimated fair value of these 
arrangements is minimal.

11. Equity and Stock-based Compensation

Common Stock

Each share of Common Stock is entitled to one vote. The holders of Common Stock are also entitled to receive dividends whenever funds are legally 
available and when declared by the board of directors, subject to the prior rights of holders of all classes of stock outstanding.

Shares of Common Stock outstanding, shares of stock plans outstanding and shares reserved for future issuance related to stock options and RSU grants 
and the Company’s Employee Stock Purchase Plan (“ESPP”) purchases are as follows (in thousands):

Common stock outstanding
Stock options outstanding
RSUs outstanding
Shares reserved for future stock options and RSUs grant
Shares reserved for future ESPP offering
Total shares of common stock reserved

147

December 31,

2022

2021

94,166    
9,088    
3,669    
11,524    
5,373    
123,820    

92,881  
8,967  
2,304  
10,253  
4,771  
119,176  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Stock Plans

Stock Option and RSU Plans

Under the Company’s Amended and Restated 2005 Stock Plan (“2005 Stock Plan”), the Company may issue shares of Common Stock and options to 
purchase Common Stock and other forms of equity incentives to employees, directors and consultants. Options granted under the 2005 Stock Plan may be 
incentive stock options or nonqualified stock options. Incentive stock options may be granted only to employees and officers of the Company. Nonqualified 
stock options and stock purchase rights may be granted to employees, directors and consultants. The board of directors has the authority to determine to 
whom options will be granted, the number of options, the term and the exercise price. Options are to be granted at an exercise price not less than fair 
market value for an incentive stock option or a nonqualified stock option. Options generally vest over four years. Options expire no more than 10 years 
after the date of grant. Upon the effective date of the registration statement related to the Company’s initial public offering, the 2005 Plan was amended to 
cease the grant of any additional awards thereunder, although the Company will continue to issue common stock upon the exercise of previously granted 
stock options under the 2005 Plan.

In September 2014, the Company adopted a 2014 Equity Incentive Plan (the “2014 Plan”) which became effective on November 13, 2014. The 2014 Plan 
is the successor equity compensation plan to the 2005 Plan. The 2014 Plan will terminate on November 12, 2024. The 2014 Plan provides for the grant of 
incentive stock options, nonqualified stock options, restricted stock awards, stock appreciation rights, performance stock awards, performance cash awards, 
restricted stock units and other stock awards to employees, directors and consultants. Stock options granted must be at prices not less than 100% of the fair 
market value at date of grant. Option vesting schedules are determined by the Company at the time of issuance and generally have a four year vesting 
schedule (25% vesting on the first anniversary of the vesting base date and quarterly thereafter over the next 3 years). Options generally expire ten years 
from the date of grant unless the optionee is a 10% stockholder, in which case the term will be five years from the date of grant. Unvested options exercised 
are subject to the Company’s repurchase right. Shares reserved for issuance increases on January 1 of each year commencing on January 1, 2016 and 
ending on January 1, 2024 by the lesser of (i) the amount equal to 4% of the number of shares issued and outstanding on December 31 immediately prior to 
the date of increase or (ii) such lower number of shares as may be determined by the board of directors. As of December 31, 2022, the Company has 
reserved 11,523,829 shares of its common stock that remains unissued for issuance under the 2014 Plan.

Issuance of shares upon share option exercise or share unit conversion is made through issuance of new shares authorized under the plan.

Certain Common Stock option holders have the right to exercise unvested options, subject to a right held by the Company to repurchase the stock, at the 
original exercise price, in the event of voluntary or involuntary termination of employment of the stockholder. The shares are generally released from 
repurchase provisions ratably over four years. The Company accounts for the cash received in consideration for the early exercised options as a liability. At 
December 31, 2022 and 2021, no shares of Common Stock were subject to repurchase by the Company.

In February 2022, the Company granted 280,450 total shares of PRSUs to certain executives for the performance period beginning January 1, 2022 and 
ending December 31, 2025. The ultimate number of shares eligible to vest for PRSUs range from 0% to 200% of the target number of shares depending on 
achievement relative to the predefined clinical performance metrics and continued employment with the Company. As of December 31, 2022, all the 
PRSUs have not become vested.

In February 2022, the Company granted 280,450 total shares of TSR awards to certain executives for the performance period beginning January 1, 2022 
and ending December 31, 2025. The ultimate number of shares eligible to vest for the TSR awards range from 0% to 200% of the target number of shares 
depending on the TSR of FibroGen’s common stock as compared to companies in the NBI index, and continued employment with the Company. As of 
December 31, 2022, all the TSR awards have not become vested.

148

 
 
Stock option transactions, including forfeited options granted under the 2014 Plan as well as prior plans, are summarized below:

Outstanding at December 31, 2021
Granted
Exercised
Expired
Forfeited

Outstanding at December 31, 2022

Vested and expected to vest, December 31, 2022
Exercisable at December 31, 2022

Shares 
(In thousands)

Weighted 
Average 
Exercise Price per 
Share

Weighted 
Average 
Remaining 
Contractual 
Life 
(In Years)

Aggregate 
Intrinsic Value 
(In thousands)

8,967     $
2,902    
(179 )  
(1,847 )  
(755 )  
9,088    
8,614    
4,730     $

34.84    
14.72    
8.24    
34.36    
32.89    
29.19      
29.61      
35.07      

7.03     $
6.93    
5.45     $

6,232  
5,770  
1,438  

The estimated weighted-average fair value of the stock options granted during the years ended December 31, 2022, 2021 and 2020 was $14.72, $35.58 and 
$31.55, respectively. The total intrinsic value of options exercised during the years ended December 31, 2022, 2021 and 2020 was $0.8 million, $13.1 
million and $89.6 million, respectively.

The following table summarizes the activities of RSUs, PRSUs and TSR awards:

Unvested at December 31, 2021
Granted
Vested
Forfeited
Unvested at December 31, 2022

Shares 
(In thousands)

Weighted Average Fair Value 
at Grant

2,304     $
3,151      
(1,142 )    
(644 )    
3,669     $

30.60  
14.68  
27.72  
25.06  

18.80  

The numbers of PRSUs and TSR awards granted included in the table above reflect the shares that could be eligible to vest at 100% of target number of 
shares.

Among the vested RSUs during the year ended December 31, 2022, 779,539 shares were released and issued, while the remaining was withheld for the 
related payroll taxes. The estimated weighted-average fair value of the awards granted during the years ended December 31, 2022, 2021 and 2020 was 
$14.68, $30.19 and $29.99, respectively.

ESPP

In September 2014, the Company adopted a 2014 ESPP that became effective on November 13, 2014. The 2014 ESPP is designed to enable eligible 
employees to periodically purchase shares of the Company’s common stock at a discount through payroll deductions of up to 15% of their eligible 
compensation, subject to any plan or IRS limitations. At the end of each offering period, employees are able to purchase shares at 85% of the lower of the 
fair market value of the Company’s common stock on the first trading day of the offering period or on the last day of the offering period. Purchases are 
accomplished through participation in discrete offering periods. The 2014 ESPP is intended to qualify as an ESPP under Section 423 of the Internal 
Revenue Code. The Company has reserved 1,600,000 shares of its common stock for issuance under the 2014 ESPP and shares reserved for issuance 
increases January 1 of each year, which commenced on January 1, 2016, by the lesser of (i) a number of shares equal to 1% of the total number of 
outstanding shares of common stock on December 31 immediately prior to the date of increase; (ii) 1,200,000 shares or (iii) such number of shares as may 
be determined by the board of directors. There were 327,298 shares, 213,505 shares and 143,876 shares purchased by employees under the 2014 Purchased 
Plan for the years ended December 31, 2022, 2021 and 2020, respectively.

149

 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
   
 
     
   
   
 
     
   
   
 
     
   
   
 
     
   
   
 
   
 
 
   
 
 
 
   
 
   
   
   
   
   
 
Stock-Based Compensation

Stock-based compensation expense was recorded directly to research and development and selling, general and administrative expense for the years ended 
December 31, 2022, 2021 and 2020 was as follows (in thousands):

Research and development
Selling, general and administrative

Total stock-based compensation expense

2022

Years Ended December 31,
2021

2020

  $

  $

34,861     $
30,740    
65,601     $

40,547  
30,614  
71,161  

  $

  $

46,229  
26,491  
72,720  

The Company estimates the fair value of stock options using the Black-Scholes option valuation model. The fair value of employee stock options and 
RSUs is being amortized on a straight-line basis over the requisite service period of the awards. Compensation cost for PRSUs is expensed over the 
respective vesting periods when the achievement of performance criteria is probable. The Company estimates the fair value of the TSR awards using the 
Monte Carlo valuation model to simulate the probabilities of achievement. Compensation cost for the TSR awards is recognized over the requisite service 
period, regardless of when, if ever, the market condition is satisfied. The fair market value of common stock is based on the closing price of the Company’s 
common stock as reported on the Nasdaq Global Select Market on the date of the grant. 

The fair value of employee stock-based compensation is estimated using the following assumptions:

•

•

•

•

Expected Term. Expressed as a weighted-average, the expected life of the options is based on the average period the stock options are expected to be 
outstanding and was based on the Company’s historical information of the option exercise patterns and post-vesting termination behavior as well as 
contractual terms of the instruments. The expected term of 2014 ESPP shares is the average of the remaining purchase periods under each offering 
period. The expected term of TSR awards is determined based on the grant date to the end of the performance period.

Expected Volatility. The Company considers its historical volatility data for volatility considerations for its ESPP. Historically, the expected 
volatility for all other stock-based compensation types was based upon a blend of the Company’s and comparable public entities’ historical 
volatility. Since the third quarter of 2020, the expected volatility for all other stock-based compensation types is currently based upon the 
Company’s historical volatility data.

Risk-Free Interest Rate. Expressed as a weighted-average, the risk-free interest rate assumption is based on the U.S. Treasury instruments whose 
term was consistent with the expected term of the Company’s respective stock-based compensation types.

Expected Dividend Yield. The Company has never declared or paid any cash dividends and does not plan to pay cash dividends in the foreseeable 
future.

The assumptions used to estimate the fair value of stock options granted and ESPPs using the Black-Scholes option valuation model were as follows:

Stock Options
Expected term (in years)
Expected volatility
Risk-free interest rate
Expected dividend yield
Weighted average estimated fair value

ESPPs
Expected term (in years)
Expected volatility
Risk-free interest rate
Expected dividend yield
Weighted average estimated fair value

2022

2021

2020

Years Ended December 31,

5.7    
66.8   %    
2.2   %    
—    
7.88    

  $

5.7    
61.9   %    
0.8   %    
—    
20.21    

  $

5.7    
67.1   %
0.8   %
—    
18.36    

0.5 - 2.0    
58.5 - 97.6   %  
0.1 - 4.5   %  
—    
8.60    

  $

0.5 - 2.0    
47.1 - 104.4   %  
0.0 - 2.2   %  

—    
12.40    

  $

0.5 - 2.0    
47.5 - 77.1   %
0.1 - 2.9   %

—    
17.53    

  $

  $

150

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
   
 
   
 
 
   
 
 
   
 
 
   
 
 
   
   
 
 
 
 
 
 
   
   
 
 
     
 
     
 
     
 
     
 
     
 
     
 
 
 
 
 
 
 
   
   
 
The assumptions used to estimate the fair value of the TSR awards using the Monte Carlo valuation model were as follows:

TSR awards
Expected term (in years)
Expected volatility
Risk-free interest rate
Expected dividend yield
Weighted average estimated fair value

Year Ended December 31,
2022

3.9    
69.0   %
1.8   %
—    
24.01    

$

As of December 31, 2022, there was $40.8 million of total unrecognized compensation costs, net of estimated forfeitures, related to non-vested stock option 
awards granted that will be recognized on a straight-line basis over the weighted-average period of 2.43 years. As of December 31, 2022, there was $46.9 
million of total unrecognized compensation costs, net of estimated forfeitures, related to non-vested RSUs, PRSUs and TSR awards granted that will be 
recognized on a straight-line basis over the weighted-average period of 2.59 years.

Non-Controlling Interests and Subsidiary Stock 

Non-Controlling Interests

Non-controlling interest positions related to the issuance of subsidiary stock as described below are reported as a separate component of consolidated 
equity from the equity attributable to the Company’s stockholders at December 31, 2022 and 2021. In addition, the Company does not allocate losses to the 
non-controlling interests as the outstanding shares representing the non-controlling interest do not represent a residual equity interest in the subsidiary. 

In January 2013, FibroGen Cayman entered into a $0.6 million convertible promissory note. The note bears simple interest at a rate of two percent (2.00%) 
per annum, accrued on an annual basis in arrears. The outstanding principal balance and unpaid accrued interest on the note is due and payable upon the 
earlier of (a) the effectiveness of the initial public offering of FibroGen Cayman or (b) the eight year anniversary of the date of the note. During the year 
ended December 31, 2021, at the option of the lender, the $0.7 million total outstanding principal balance and unpaid accrued interest on the note were 
converted into Series A Preferred Stock of FibroGen Cayman, and was recorded as an addition to the non-controlling interest of the Company. 

Upon the initial public offering and as described below, all eligible FibroGen Europe preferred shares were exchanged for 958,996 shares of FibroGen 
Common Stock. No other FibroGen Europe shares have the right to be exchanged for FibroGen, Inc. Common Stock.

FibroGen Europe

As of December 31, 2022 and 2021, respectively, FibroGen Europe had a total of 42,619,022 shares of Preferred Stock outstanding, of which there were 
1,700,845 shares of Series A Preferred Stock, 1,875,000 shares of Series B Preferred Stock, 1,599,503 shares of Series C Preferred Stock, 1,520,141 shares 
of Series D Preferred Stock, 459,565 shares of Series E Preferred Stock, 5,714,332 shares of Series F Preferred Stock, 9,927,500 shares of Series G 
Preferred Stock and 19,822,136 shares of Series H Preferred Stock, all of which shares no longer have any right to be exchanged for FibroGen, Inc. 
Common Stock. The holders of FibroGen Europe’s shares of Preferred Stock (“Preferred Shares”) have the following rights, preferences and privileges:

Dividend Rights — When the assets of FibroGen Europe are distributed (except for distribution in a liquidation), Preferred Shares shall have the 
same rights to dividend or other forms of distribution as shares of Common Stock of FibroGen Europe. In the event of a merger, holders of Preferred 
Shares do not have the right to demand FibroGen Europe to redeem all or part of their Preferred Shares. FibroGen Europe may repurchase shares of 
Common Stock or Preferred Shares for consideration.

Pre-emptive Right — Preferred Shares shall have pre-emptive subscription right in accordance with the Finnish Limited Liability Companies Act if 
additional shares are issued, option rights are given, or convertible loan is taken, provided, however, that the foregoing pre-emptive right does not 
apply to a directed share issue, for which two thirds (2/3) of the voting shares represented at a general meeting of shareholders approve for an 
important legitimate cause.

Redemption Right — If a Preferred Share can be redeemed by a majority shareholder owning more than ninety percent (90%) of the shares of 
FibroGen Europe in accordance with the provisions of the Finnish Limited Liability Companies Act, the minority holders of Preferred Shares have 
the right to request redemption of their shares.

151

 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
Voting Right — Each share has one vote. Preferred Shares have voting rights only in situations that are specifically provided in the Articles of 
Association, which include a merger transaction and directed share issue. In addition, Preferred Shares have right to vote in a general shareholder 
meeting for amending the Articles of Association if the amendment will affect the rights of Preferred Shares.

Conversion Right (1-for-1 basis into Common Stock of FibroGen Europe):

•

•

Voluntary conversion right: Preferred Shares can be converted into common shares upon the written request of a shareholder provided that 
the conversion is feasible within the maximum and minimum amounts of shares of classes of FibroGen Europe as set forth in its Articles of 
Association. Such request can be withdrawn before the notification of conversion is filed with the Finnish Trade Register.

Compulsory conversion right: Preferred Shares will be converted into common shares if (i) FibroGen Europe’s shares are listed in a stock 
exchange or other trading system in the European Economic Area, or (ii) FibroGen Europe’s recombinant collagen and gelatin production 
technology is being put into commercial use in the area of Europe and certain other European states. Commercial use means there is income 
generated from the first commercial sale of the products incorporating the above-mentioned technology and does not include license fees, 
development financing, milestone payments or income from test products or equipment used in research. The board of directors of FibroGen 
Europe shall notify the shareholders of the compulsory conversion in writing, and the shareholders shall request to convert their shares within 
the timeframe provided in the notification. Should the shareholders fail to make the conversion request within the time limit, FibroGen 
Europe may redeem the shares of such shareholders.

Liquidation Right — In the event of a dissolution of FibroGen Europe, holders of Preferred Shares are entitled to be paid in an amount equal to the 
subscription price of the shares before any distribution is made to holders of common shares. Among holders of Preferred Shares, holders of shares 
of Series F Preferred Stock are entitled to be paid in an amount equal to the subscription price of Series F Preferred Stock before any distribution is 
made to holders of other Preferred Shares.

FibroGen Cayman

FibroGen Cayman had 6,758,000 Series A Preference Shares outstanding as of December 31, 2022 and 2021, respectively. The holders of the FibroGen 
Cayman Series A Preference Shares have the following rights, preferences and privileges:

Liquidation — In the event of liquidation, dissolution, or winding up of the Company, either voluntary or involuntary, including by means of a 
merger, the holders of FibroGen Cayman Series A Preference Shares are entitled to be paid an amount equal to the product of the number of shares 
held by a holder of shares of FibroGen Cayman Series A Preference Shares and the original issue price of $1.00 (subject to equitable adjustment for 
any stock dividend, combination, split, reclassification, recapitalization) plus all declared and unpaid dividends thereon.

Conversion — Each share of FibroGen Cayman Series A Preference Shares is convertible into the number of fully paid and non-assessable shares of 
Common Stock of FibroGen Cayman that results from dividing the original issue price by the conversion price in effect at the time of the 
conversion, subject to adjustments for stock splits, stock dividends, reclassifications and like events. The FibroGen Cayman Series A Preference 
Shares have a conversion price that is equal to the original issuance price such that the conversion ratio to FibroGen Cayman Common Stock is 1:1 
as of all periods presented.

Voting — The holders of FibroGen Cayman Series A Preference Shares are entitled to vote together with the FibroGen Cayman Common 
Stockholders on all matters submitted for a vote of the stockholders. The holder of each share of FibroGen Cayman Series A Preference Shares has 
the number of votes equal to the number of shares of FibroGen Cayman Common Stock into which it is convertible.

Dividends — The holders of FibroGen Cayman Series A Preference Shares are entitled to receive cash dividends when and if declared, at a rate of 
6%.

152

 
12. Net Loss Per Share

Potential common shares that would have the effect of increasing diluted earnings per share are considered to be anti-dilutive and as such, these shares are 
not included in the calculation of diluted earnings per share. The Company reported a net loss for each of the years ended December 31, 2022, 2021 and 
2020. Therefore, dilutive common shares are not assumed to have been issued since their effect is anti-dilutive for these periods.

Diluted weighted average shares excluded the following potential common shares related to stock options, RSUs, PRSUs and TSR awards, and shares to be 
purchased under the 2014 Employee Stock Purchase Plan (“ESPP”) for the periods presented as they were anti-dilutive (in thousands):

Employee stock options
RSUs, PRSUs and TSR awards
ESPP

13.

Income Taxes

The components of loss before income taxes are as follows (in thousands):

Domestic
Foreign

Loss before provision for income taxes

The provision for income taxes consists of the following (in thousands):

Current:

Federal
State
Foreign

Total current

Deferred:
Federal
State
Foreign

Total deferred

Total provision for income taxes

2022

Years Ended December 31,
2021

2020

9,520      
2,137      
305      
11,962      

8,461      
1,538      
417      
10,416      

6,694  
564  
306  
7,564  

2022

Years Ended December 31,
2021
(268,499 )   $
(22,184 )    
(290,683 )   $

(307,056 )   $
12,187    
(294,869 )   $

2020
(195,617 )
6,888  
(188,729 )

2022

Years Ended December 31,
2021

2020

—     $
—    
358    
358    

—    
—    
—    
—    
358     $

—     $
—    
347    
347    

—    
—    
—    
—    
347     $

  $

  $

  $

  $

The following is the reconciliation between the statutory federal income tax rate and the Company’s effective tax rate:

Tax at statutory federal rate
State tax
Stock-based compensation expense
Benefit due to intercompany transfer of assets
Valuation allowance on intercompany transfer of assets
Net operating losses not benefitted
Foreign net operating losses not benefitted
Deduction limitation on executive compensation
Global intangible low-taxed income
Other

Total

153

2022

Years Ended December 31,
2021

2020

21.0 %   
— %   
(2.5 )%   
— %   
— %   
(16.3 )%   
0.9 %   
(0.2 )%   
(2.8 )%   
(0.2 )%   
(0.1 )%   

21.0 %   
— %   
(1.8 )%   
— %   
— %   
(16.8 )%   
(1.6 )%   
(0.3 )%   
(0.4 )%   
(0.2 )%   
(0.1 )%   

—  
—  
360  
360  

—  
—  
—  
—  
360  

21.0 %
— %
2.4 %
41.7 %
(41.7 )%
(23.2 )%
0.7 %
(0.8 )%
— %
(0.3 )%
(0.2 )%

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
Significant components of the Company’s deferred tax assets are as follows (in thousands):

Federal and state net operating loss carryforwards
Tax credit carryforwards
Foreign net operating loss carryforwards
Capitalized research and development expenses
Stock-based compensation
Lease obligations
Reserves and accruals
Deferred revenue
Intangible assets
Other
Subtotal
Less: Valuation allowance
Net deferred tax assets

Fixed assets
Non-deductibale accrued expenses

Net deferred tax liabilities

Total net deferred tax assets

December 31,

2022

2021

  $

166,708     $
106,131    
49,990    
45,125    
8,616    
18,442    
4,929    
21,624    
69,159    
1,277    
492,001    
(477,969 )  
14,032    

(13,101 )  
(931 )  
(14,032 )  

  $

—     $

167,135  
78,832  
38,117  
—  
10,050  
20,415  
6,067  
20,101  
84,625  
825  
426,167  
(409,810 )
16,357  

(16,357 )
—  
(16,357 )
—  

A valuation allowance has been provided to reduce the deferred tax assets to an amount management believes is more likely than not to be realized. 
Expected realization of the deferred tax assets for which a valuation allowance has not been recognized is based on upon the reversal of existing temporary 
differences and future taxable income.

The valuation allowance increased by $68.2 million, $72.0 million and $124.0 million for the years ended December 31, 2022, 2021 and 2020, respectively. 
Due to uncertainty surrounding the realization of the favorable tax attributes in the future tax returns, the Company has established a valuation allowance 
against its otherwise recognizable net deferred tax assets.

The Company intends to continue maintaining a full valuation allowance on its deferred tax assets until there is sufficient evidence to support the reversal 
of all or some portion of this allowance. 

During 2020, the Company transferred certain intellectual property rights relating to its Chinese business between its wholly owned subsidiaries that are 
based in different tax jurisdictions. The transferor entity was not subject to income taxes in its local jurisdiction. The acquiring entity of the intellectual 
property is entitled to amortize the acquisition price of the intangible assets for tax purposes. In accordance with ASU 2016-16, Intra-Entity Transfers of 
Assets Other Than Inventory, the Company recognized a deferred tax asset of $78.7 million for the temporary difference arising from the acquirer’s excess 
tax basis. Furthermore, based upon the weight of available evidence, the Company recognized a full valuation allowance against this deferred tax asset 
since it does not currently believe that realization of this gross deductible temporary difference is more likely than not. Accordingly, this inter-company 
transfer did not have a material impact to the Company’s consolidated financial statements.

At December 31, 2022, the Company had net operating loss carryforwards available to offset future taxable income of approximately $758.3 million and 
$140.1 million for federal and state tax purposes, respectively. These carryforwards will begin to expire in 2026 for federal and 2028 for state purposes, if 
not utilized before these dates. The Company also had foreign net operating loss carryforwards of approximately $242.6 million, which expire between 
2023 and 2032 if not utilized.

At December 31, 2022, the Company had approximately $121.6 million of federal and $46.6 million of California research and development tax credit and 
other tax credit carryforwards available to offset future taxable income. The federal credits begin to expire in 2023 and the California research credits have 
no expiration dates.

Federal and state tax laws impose substantial restrictions on the utilization of net operating loss and credit carryforwards in the event of an “ownership 
change” for tax purposes, as defined in IRC Section 382. The Company reviewed its stock ownership for year ended December 31, 2022 and concluded no 
ownership changes occurred which would result in a reduction of its net operating loss or in its research and development credits expiring unused. If 
additional ownership change occurs, the utilization of net operating loss and credit carryforwards could be significantly reduced.

154

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
On August 16, 2022, the Inflation Reduction Act of 2022 (“IRA”) was signed into law. Among other changes to the Internal Revenue Code, the IRA 
imposes a 15% corporate alternative minimum tax on certain corporations and 1% excise tax on public company stock buybacks for tax years beginning 
after December 31, 2022. The Company does not expect these provisions to have a material impact on its consolidated financial statements and related 
disclosures.

Uncertain Tax Positions

The Company had unrecognized tax benefits of approximately $72.8 million as of December 31, 2022. Approximately $0.7 million of unrecognized tax 
benefits, if recognized, would affect the effective tax rate. The interest accrued as of December 31, 2022 and 2021 was immaterial.

A reconciliation of the beginning and ending amounts of unrecognized income tax benefits during the three years ended December 31, 2022 is as follows 
(in thousands):

Balance as of December 31, 2019
Decrease due to prior positions
Increase due to current year position

Balance as of December 31, 2020
Decrease due to prior positions
Increase due to current year position
Foreign exchange rate differential

Balance as of December 31, 2021
Increase due to prior positions
Increase due to current year position
Foreign exchange rate differential

Balance as of December 31, 2022

Federal and State

32,263  
(137 )
16,448  
48,574  
(245 )
8,415  
927  
57,671  
6,954  
9,074  
(908 )
72,791  

  $

  $

Unrecognized tax benefits may change during the next twelve months for items that arise in the ordinary course of business. The Company does not 
anticipate a material change to its unrecognized tax benefits over the next twelve months that would affect the Company’s effective tax rate.

The Company classifies interest and penalties as a component of tax expense, if any.

The Company files income tax returns in the U.S. federal jurisdiction, U.S. state and other foreign jurisdictions. The U.S. federal and U.S. state taxing 
authorities may choose to audit tax returns for tax years beyond the statute of limitation period due to significant tax attribute carryforwards from prior 
years, making adjustments only to carryforward attributes. The foreign statute of limitation generally remains open from 2013 to 2022. The Company is not 
currently under audit in any tax jurisdiction.

14. Related Party Transactions

Astellas is an equity investor in the Company and considered a related party. During the years ended December 31, 2022, 2021 and 2020, the Company 
recorded license and development revenue related to collaboration agreements with Astellas of $32.5 million, $130.4 million, and $33.5 million, 
respectively. During the years ended December 31, 2022, 2021 and 2020, the Company also recorded drug product revenue from Astellas of $11.1 million, 
$3.2 million, and $4.3 million, respectively. See Note 3, Collaboration Agreements, License Agreement and Revenues, for details. 

The Company’s expense related to collaboration agreements with Astellas was immaterial for each of the three years ended December 31, 2022.

As of December 31, 2022 and 2021, accounts receivable from Astellas were $1.5 million and $10.9 million, respectively. 

As of December 31, 2022 and 2021, total deferred revenue from Astellas were $40.3 million and $27.9 million, respectively.

As of December 31, 2022, the amount due to Astellas was $63.9 million. As of December 31, 2021, the amount due to Astellas was immaterial.

155

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Falikang, an entity jointly owned by FibroGen Beijing and AstraZeneca is an unconsolidated VIE accounted for as an equity method investment, and 
considered as a related party to the Company. FibroGen Beijing owns 51.1% of Falikang’s equity. See Note 4, Equity method investment - Variable Interest 
Entity, for details. 

For the years ended December 31, 2022 and 2021, the net product revenue from sales to Falikang were $71.2 million, and $35.6 million, respectively. See 
the Product Revenue, Net section in Note 3, Collaboration Agreements, License Agreement and Revenues, for details. The other income from Falikang 
were immaterial for each of the three years ended December 31, 2022.

For the years ended December 31, 2022, 2021 and 2020, the investment income (loss) in Falikang was $1.6 million, $1.0 million, and $(0.2) million, 
respectively. As of December 31, 2022 and 2021, the Company’s equity method investment in Falikang were $5.1 million and $3.8 million, respectively. 
See Note 4, Equity method investment - Variable Interest Entity, for details.

As of December 31, 2022, accounts receivable, net, from Falikang were $10.5 million. As of December 31, 2021, accounts receivable, net, from Falikang 
was zero. 

As of December 31, 2022, the total deferred revenue from Falikang was zero. As of December 31, 2021, the total deferred revenue from Falikang was $1.2 
million.

15. Segment and Geographic Information

The Company has determined that the chief executive officer is the chief operating decision maker (“CODM”). The CODM reviews financial information 
presented for the Company’s various clinical trial programs as well as results on a consolidated basis. License revenues and development revenues received 
are not allocated to various programs for purposes of determining a profit measure and resource allocation decisions are made by the CODM based 
primarily on consolidated results. As such, the Company has concluded that it operates as one segment. Supplemental enterprise-wide information has been 
presented below.

Geographic Revenues

Geographic revenues, which are based on the region that revenue is generated, are as follows (in thousands):

China
Europe
Japan
United States

Total revenue

Geographic Assets

2022

Years Ended December 31,
2021

2020

  $

  $

84,631     $
33,820    
9,764    
12,519    
140,734     $

55,640  
131,243  
2,305  
46,121  
235,309  

  $

  $

73,361  
17,954  
19,824  
65,180  
176,319  

Property and equipment, net by geographic location are as follows (in thousands):

United States
China

Total property and equipment

December 31,

2022

2021

  $

  $

10,094     $
10,511    
20,605     $

15,002  
13,275  
28,277  

156

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
Finance lease right-of-use assets and operating lease right-of-use assets, net by geographic location are as follows (in thousands):

United States
China

Total finance lease right-of-use assets

United States
China

Total operating lease right-of-use assets

December 31,

2022

2021

  $

  $

  $

  $

424     $
11    
435     $

76,273     $
3,620    
79,893     $

730  
31  
761  

87,113  
3,999  
91,112  

Customer Concentration

The Company’s revenues to date have been generated from the following collaboration partners and distribution entity that individually accounted for 10% 
or more of the Company’s total revenue or accounts receivable:

Falikang — Related party
Astellas — Related party
AstraZeneca

Percentage of Revenue
Years Ended December 31,
2021

2022

Percentage of Accounts Receivable
December 31,

2020

2022

2021

51 %   
31 %   
9 %   

15 %   
57 %   
20 %   

— %   
21 %   
37 %   

65 %   
9 %   
16 %   

— %
63 %
34 %

In January 2021, Falikang became fully operational and substantially all direct product sales to distributors in China were made by Falikang, while 
FibroGen Beijing continued to sell roxadustat product directly through pharmaceutical distributors in one province in China during 2021 and in one 
province in 2022. No individual distributor represented over 10% of the total revenue for the years ended December 31, 2022 and 2021. The aggregate 
accounts receivable from direct sales to distributors as of December 31, 2022 and 2021 were immaterial. 

For the year ended December 31, 2020, the aggregate revenue from distributors represented 42% of the consolidated revenue, with no individual distributor 
representing over 10% of the total revenue. As of December 31, 2020, the aggregate accounts receivable from distributors represented 64% of the 
consolidated accounts receivable, with no material balance from any individual distributor. 

157

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
 
   
   
   
 
   
   
   
 
Schedule II: Valuation and Qualifying Accounts
(in thousands)

Balance at
Beginning of
Year

Charged
(Credited)
to Statement
of Operation

Charged
to Other
Accounts -
Liabilities
and Equity

Valuation allowances for deferred tax assets

Year ended December 31, 2022

Year ended December 31, 2021

Year ended December 31, 2020

  $

  $

  $

409,810  

337,824  

213,847  

Allowances for rebates, discounts and adjustments  

Year ended December 31, 2022

Year ended December 31, 2021

Year ended December 31, 2020

  $

  $

$

14,443  

548  

1,102  

68,159    

71,986    

123,977    

39,082    

44,258    

16,497    

$

$

$

$

$

$

$

$

$

$

$

$

158

Deductions,
Net

Balance at
End of Year

—  

  $

—  

  $

—  

  $

—  

  $

477,969  

—  

  $

409,810  

—  

  $

337,824  

1,050  

(734 )

$

$

(53,226 )

$

1,349  

(29,629 )

  $

14,443  

(14,867 )

  $

(2,184 )

  $

548  

 
 
 
   
     
   
     
     
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
 
  
 
  
  
  
 
  
  
  
 
  
  
 
 
 
     
     
     
     
 
 
   
 
   
 
   
 
   
 
 
  
 
 
 
  
 
 
  
 
  
 
  
  
 
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Attached as Exhibits 31.1 and 31.2 to this Annual Report on Form 10-K for the year ended December 31, 2022 (“Annual Report”) are certifications of our 
Chief Executive Officer and our Chief Financial Officer required by Rule 13a-14(a) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, 
as amended (the “Rule 13a-14(a) and 15d-15(e) Certifications”). This Controls and Procedures section of the Annual Report includes the information 
concerning the controls evaluation referred to in the Rule 13a-14(a) and 15d-15(e) Certifications.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, has evaluated the effectiveness of our disclosure 
controls and procedures as of December 31, 2022, the end of the period covered by this Annual Report. Disclosure controls and procedures (as defined in 
Rules 13a-15(e) or 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) are designed to provide reasonable assurance 
that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized 
and reported, within the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to the company’s 
management, including its Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. 

Based on our evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective 
at the reasonable assurance level as of December 31, 2022.

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 such term is defined in Rule 13a-
15(f) of the Exchange Act. Our internal control over financial reporting is a process established under the supervision of and with the participation of our 
management, including our Chief Executive Officer and our Chief Financial Officer. 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. Because of its inherent limitations, internal control over financial reporting may not prevent or detect 
misstatements. In addition, 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.

Management, with the participation and under the supervision of our Chief Executive Officer and our Chief Financial Officer, evaluated our internal 
control over financial reporting as of December 31, 2022, the end of our fiscal year, using the criteria established in Internal Control - Integrated 
Framework (2013) set forth by the Committee of Sponsoring Organizations of the Treadway Commission. 

Based on our evaluation, our management has concluded that our internal control over financial reporting was effective as of December 31, 2022 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. 

The effectiveness of the Company’s internal control over financial reporting as of December 31, 2022 has been audited by PricewaterhouseCoopers LLP, 
an independent registered public accounting firm, as stated in their report that appears herein.

Limitations on the Effectiveness of Controls

In designing and evaluating the disclosure controls and procedures, management recognizes that because of the inherent limitations in all control systems, 
any controls and procedures, no matter how well designed and operated, can provide only reasonable not absolute, assurance of achieving the desired 
control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and the benefits of 
controls and procedures must be considered relative to their costs. 

159

 
Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-
15(d) of the Exchange Act that occurred during the most recent fiscal quarter ended December 31, 2022 that materially affected, or is reasonably likely to 
materially affect, our internal control over financial reporting.

We are implementing an enterprise resource planning (“ERP”) system, which will replace our existing operating and financial systems in the U.S. in the 
first quarter of 2023. While we expect the ERP implementation to improve the efficiency of certain financial and transactional processes, the related 
changes will materially affect our internal control over financial reporting beginning in the first quarter of 2023, and we have been monitoring such changes 
during the implementation process.

ITEM 9B. OTHER INFORMATION

On February 27, 2023, we entered into an Amended and Restated Equity Distribution Agreement with Goldman Sachs & Co., LLC and BofA Securities, 
Inc., which amended and restated our Equity Distribution Agreement with Goldman Sachs & Co., LLC, dated August 8, 2022, to add BofA Securities, Inc. 
as an additional sales agent under that agreement. The Amended and Restated Equity Distribution Agreement is filed as Exhibit 10.44 to this Form 10-K.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

160

 
PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information required by this item relating to our directors and nominees, including information with respect to our audit committee, audit committee 
financial experts and procedures by which stockholders may recommend nominees to our Board of Directors, is incorporated by reference to the sections 
titled “Proposal 1 – Election of Directors” and “Directors and Corporate Governance" in our Proxy Statement for our 2023 Annual Meeting of 
Stockholders to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2022 (the “2023 Proxy Statement”). The 
information required by this item regarding our executive officers is incorporated by reference to the section titled “Executive Officers” appearing in our 
2023 Proxy Statement. The information, if any, required by this item regarding compliance with Section 16(a) of the Securities Exchange Act of 1934, as 
amended, is incorporated by reference to the section titled “Delinquent Section 16(a) Reports” appearing in our 2023 Proxy Statement.

Code of Conduct

We have adopted a Code of Business Conduct that applies to all of our directors, officers and employees. A copy of our Code of Business Conduct can be 
found on our website (www.FibroGen.com) under “Corporate Governance.” The contents of our website are not a part of this report.

In addition, we intend to promptly disclose the nature of any amendment to, or waiver from, our Code of Business Conduct that applies to our principal 
executive officer, principal financial officer, principal accounting officer or persons performing similar functions on our website in the future.

ITEM 11. EXECUTIVE COMPENSATION

The information required by this item is incorporated by reference to the sections titled “Executive Compensation,” “Director Compensation,” 
“Compensation Committee Interlocks and Insider Participation” and “Compensation Committee Report” appearing in our 2023 Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER 
MATTERS

The information required by this item is incorporated by reference to the sections titled “Security Ownership of Certain Beneficial Owners and 
Management” and “Equity Compensation Plan Information” appearing in our 2023 Proxy Statement.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this item is incorporated by reference to the sections titled “Transactions with Related Persons” and “Directors and Corporate 
Governance” appearing in our 2023 Proxy Statement.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this item is incorporated by reference to the proposal title “Ratification of Selection of Independent Registered Public 
Accounting Firm” appearing in our 2023 Proxy Statement.

161

 
 
PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a) We have filed the following documents as part of this Annual Report:

1. Consolidated Financial Statements

Information in response to this Item is included in Part II, Item 8 of this Annual Report.

2. Financial Statement Schedules

Schedule II is included on page158. All other schedules are omitted because they are not required or the required information is included in the 

consolidated financial statements or notes thereto.

3. Exhibits

See Item 15(b) below.

(b) Exhibits—We have filed, or incorporated into this Annual Report by reference, the exhibits listed below. Where an exhibit is incorporated by reference, 
the number in parentheses indicates the document to which cross-reference is made. Refer to the end of this table for a listing of cross-reference documents.

Incorporation By Reference

SEC File No.

Exhibit

    Filing Date

3.1

3.4

4.1

4.6

11/21/2014

10/23/2014

11/21/2014

11/8/2017

Exhibit 
Number

3.1

3.2

4.1

4.2

4.3

Exhibit Description

Amended and Restated Certificate of 
Incorporation of FibroGen, Inc.

Form

8-K

001-36740

Amended and Restated Bylaws of FibroGen, 
Inc.

S-1/A

333-199069

8-K

10-Q

001-36740

001-36740

    Form of Common Stock Certificate.

Shareholders’ Agreement by and among 
FibroGen International (Cayman) Limited 
and certain of its shareholders, dated as of 
September 8, 2017.

Common Stock Purchase Agreement by and 
between FibroGen, Inc. and AstraZeneca AB, 
dated as of October 20, 2014.

S-1/A

333-199069

4.17

10/24/2014

4.4

    Description of Capital Stock of FibroGen, Inc  

10-K

001-36740

4.4

3/2/2020

10.1(i)+

10.1(ii)+

FibroGen, Inc. Amended and Restated 2005 
Stock Plan.

Forms of stock option agreement, restricted 
stock purchase agreement and stock 
appreciation right agreement under the 
FibroGen, Inc. Amended and Restated 2005 
Stock Plan.

S-1

S-1

162

333-199069

10.3(i)

10/1/2014

333-199069

10.3(ii)

10/1/2014

 
 
   
 
 
 
   
 
 
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
Form of stock option agreement under the 
FibroGen, Inc. Amended and Restated 2005 
Stock Plan applicable to options exchanged 
pursuant to FibroGen, Inc.’s 2010 amendment 
and exchange offer.

Form of 2010 amendment to the form of 
stock option agreement under the FibroGen, 
Inc. Amended and Restated 2005 Stock Plan 
applicable to options amended pursuant to 
FibroGen, Inc.’s 2010 amendment and 
exchange offer.

Form of 2013 amendment to the form of 
stock option agreement under the FibroGen, 
Inc. Amended and Restated 2005 Stock Plan 
applicable to options amended or exchanged 
pursuant to FibroGen, Inc.’s 2010 amendment 
and exchange offer.

S-1

333-199069

10.3(iii)

10/1/2014

S-1

333-199069

10.3(iv)

10/1/2014

S-1

333-199069

10.3(v)

10/1/2014

FibroGen, Inc. 2014 Equity Incentive Plan 
and forms of agreement thereunder.

S-1/A

333-199069

10.1(iii)+

10.1(iv)+

10.1(v)+

10.2+

10.3+

10.4*+

10.4

10.5

—

10.5

10.8

11/12/2014

11/12/2014

—

2/16/2018

10/1/2014

FibroGen, Inc. 2014 Employee Stock 
Purchase Plan.

FibroGen, Inc. Non-Employee Director 
Compensation Policy, as amended.

10.5+

FibroGen, Inc. 2018 Bonus Plan.

10.6

Lease Agreement by and between FibroGen, 
Inc. and X-4 Dolphin LLC, dated as of 
September 22, 2006; as amended by First 
Amendment to Lease by and between 
FibroGen, Inc. and X-4 Dolphin LLC, dated 
as of October 10, 2007; as amended by 
Second Amendment to Lease by and between 
FibroGen, Inc. and X-4 Dolphin LLC, dated 
as of June 29, 2009; as amended by Third 
Amendment to Lease by and between 
FibroGen, Inc. and Are-San Francisco No. 43, 
LLC (as successor in interest to X-4 Dolphin 
LLC), dated as of May 19, 2011; as amended 
by Fourth Amendment to Lease by and 
between FibroGen, Inc. and Are-San 
Francisco No. 43, LLC, dated as of 
September 8, 2011.

S-1/A

333-199069

—

8-K

S-1

—

001-36740

333-199069

163

 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
 
  
  
  
 
  
 
 
    
 
 
    
 
 
    
S-1

333-199069

10.9

10/1/2014

10.7

Lease for Premises in Beijing BDA 
Biomedical Park by and among Beijing 
FibroGen Medical Technology Development 
Co., Ltd., Beijing Economic and Technology 
Investment Development Parent Company 
and Beijing BDA International Biological 
Pharmaceutical Investment Management Co., 
Ltd., effective as of February 1, 2013, as 
supplemented by the Supplementary 
Agreement to Lease of Premises in Beijing 
BDA Biomedical Park by and among Beijing 
FibroGen Medical Technology Development 
Co., Ltd., Beijing Economic Technology 
Investment Development Parent Company 
and Beijing BDA International Biological 
Pharmaceutical Investment Management Co., 
Ltd., dated as of January 30, 2013.

10.8+

Form of Employment Offer Letter.

S-1

333-199069

10.10

10/1/2014

10.9†

10.9(i)†

10.10†

10.11†

10.12

Collaboration Agreement, by and between 
FibroGen, Inc. and Astellas Pharma Inc., 
effective as of June 1, 2005.

Amendment No. 1 to Collaboration 
Agreement, by and between FibroGen, Inc. 
and Astellas Pharma Inc., effective as of 
January 1, 2013.

Anemia License and Collaboration 
Agreement, by and between FibroGen, Inc. 
and Astellas Pharma Inc., effective as of April 
28, 2006.

Amendment to Anemia License and 
Collaboration Agreement, by and between 
FibroGen, Inc. and Astellas Pharma Inc., 
effective as of August 31, 2006.

Amendment No. 2 to Anemia License and 
Collaboration Agreement, by and between 
FibroGen, Inc. and Astellas Pharma Inc., 
effective as of December 1, 2006.

10-Q

001-36740

10.1

11/5/2020

10-K

001-36740

10.9(i)

2/27/2019

S-1

333-199069

10.12

10/1/2014

S-1

333-199069

10.13

10/1/2014

S-1

333-199069

10.14

10/1/2014

164

 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
   
   
   
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
10.13†

10.14†

10.15†

10.16†

10.17

10.18

10.19†

Supplement to Anemia License and 
Collaboration Agreement, by and between 
FibroGen, Inc. and Astellas Pharma Inc., 
effective as of April 28, 2006.

Amendment No. 3 to Anemia License and 
Collaboration Agreement, by and between 
FibroGen, Inc. and Astellas Pharma Inc., 
dated as of May 10, 2012.

Amended and Restated License, Development 
and Commercialization Agreement (China) 
by and among FibroGen China Anemia 
Holdings, Ltd., Beijing FibroGen Medical 
Technology Development Co., Ltd., FibroGen 
International (Hong Kong) Limited and 
AstraZeneca AB, effective as of July 30, 
2013.

Amended and Restated License, Development 
and Commercialization Agreement (for the 
U.S. and Certain Other Territories) by and 
between FibroGen, Inc. and AstraZeneca AB, 
effective as of July 30, 2013.

Research and Commercialization Agreement 
by and among FibroGen, Inc., GenPharm 
International Inc., Medarex, Inc. and 
FibroPharma, Inc., effective as of July 9, 
1998.

Amendment No. 1 to Research and 
Commercialization Agreement by and among 
FibroGen, Inc., GenPharm International Inc., 
Medarex, Inc. and FibroPharma, Inc., 
effective as of June 30, 2001.

Amendment No. 2 to Research and 
Commercialization Agreement by and among 
FibroGen, Inc., GenPharm International Inc., 
Medarex, Inc. and FibroPharma, Inc., 
effective as of January 28, 2002.

S-1

333-199069

10.15

10/1/2014

S-1

333-199069

10.16

10/1/2014

10-Q

001-36740

10.3

11/5/2020

10-Q

001-36740

10.2

11/5/2020

S-1

333-199069

10.21

10/1/2014

S-1

333-199069

10.22

10/1/2014

10-Q

001-36740

10.6

11/5/2020

165

 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
 
  
  
  
 
  
 
 
    
 
 
    
 
 
    
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
10.20+

10.21†

10.22†

10.23†

10.24†

10.25†

10.26†

10.27†

Form of Indemnity Agreement by and 
between FibroGen, Inc. and its directors and 
officers.

State-Owned Construction Land Use Right 
Granting Contract by and between FibroGen 
(China) Medical Technology Development 
Co., Ltd. and The Bureau of Land and 
Resources of Cangzhou, dated as of February 
24, 2017.

Commercial Supply Agreement by and 
between FibroGen, Inc. and Catalent Pharma 
Solutions, LLC, effective as of January 1, 
2020.

Master Supply Agreement by and among 
FibroGen, Inc., Shanghai SynTheAll 
Pharmaceutical Co., Ltd. and STA 
Pharmaceutical Hong Kong Limited, effective 
March 2, 2020.

Amendment No.1 to Master Supply 
Agreement by and among FibroGen, Inc., 
Shanghai SynTheAll Pharmaceutical Co., 
Ltd. and STA Pharmaceutical Hong Kong 
Limited, effective May 11, 2020.

Second Amended and Restated License, 
Development and Commercialization 
Agreement by and among FibroGen China 
Anemia Holdings, Ltd., FibroGen China 
Medical Technology Development Co., Ltd., 
FibroGen International (Hong Kong) Limited, 
and AstraZeneca AB, effective July 1, 2020.

Amendment No. 1 to the Amended and 
Restated License, Development and 
Commercialization Agreement by and 
between FibroGen, Inc. and AstraZeneca AB, 
effective July 1, 2020.

Amendment No. 2 to Master Supply 
Agreement by and among FibroGen, Inc., 
Shanghai SynTheAll Pharmaceutical Co., 
Ltd. and STA Pharmaceutical Hong Kong 
Limited, effective July 24, 2020.

S-1/A

333-199069

10.27

10/23/2014

10-Q

001-36740

10.32

5/9/2017

10-K

001-36740

10.28

3/2/2020

8-K

001-36740

99.1

3/24/2020

10-Q

001-36740

10.2

8/6/2020

10-Q

001-36740

10.3

8/6/2020

10-Q

001-36740

10.4

8/6/2020

10-Q

001-36740

10.8

11/5/2020

166

 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
10.28†

10.29†

10.30†

10.31†

10.32†

10.33

10.34†

10.35†

10.36+

10.37+

10.38+

Master Supply Agreement by and between 
FibroGen, Inc. and AstraZeneca UK Limited, 
effective September 10, 2020.

Master Services Agreement by and between 
FibroGen, Inc. and Samsung Biologics Co., 
Ltd., effective as of October 30, 2020.

Product Specific Agreement by and between 
FibroGen, Inc. and Samsung Biologics Co., 
Ltd., effective as of October 30, 2020.

Astellas EU Supply Agreement by and 
between FibroGen, Inc. and Astellas Pharma 
Europe Ltd, effective as of January 1, 2021.

Amendment No. 3 to Master Supply 
Agreement by and among FibroGen, Inc., 
Shanghai SynTheAll Pharmaceutical Co., 
Ltd., and STA Pharmaceutical Hong Kong 
Limited, dated as of January 12, 2021.

Sixth Amendment to the Lease by and 
between ARE-San Francisco No., 43, LLC 
and FibroGen, Inc. as of June 1, 2021.

Exclusive License and Option Agreement by 
and between FibroGen, Inc. and HiFiBiO 
(HK) Limited (D.B.A. HiFiBiO 
Therapeutics), as of June 16, 2021.

Amendment No. 4 to Master Supply 
Agreement by and among FibroGen, Inc., 
Shanghai SynTheAll Pharmaceutical Co., 
Ltd., and STA Pharmaceutical Hong Kong 
Limited, dated as of October 29, 2021.

Offer Letter, by and between FibroGen, Inc. 
and Christine Chung, dated as of June 17, 
2008.

Offer Letter, by and between FibroGen, Inc. 
and James Schoeneck, dated as of September 
18, 2019.

Offer Letter, by and between FibroGen, Inc. 
and Enrique Conterno, dated as of December 
17, 2019.

10-Q

001-36740

10.9

11/5/2020

10-K

001-36740

10.35

3/1/2021

10-K

001-36740

10.36

3/1/2021

10-Q

001-36740

10.2

5/10/2021

10-Q

001-36740

10.3

5/10/2021

10-Q

001-36740

10.1

8/9/2021

10-Q

001-36740

10.2

8/9/2021

10-K

001-36740

10.36

2/28/2022

10-K

001-36740

10.32

3/2/2020

10-Q

001-36740

10.7

11/12/2019

10-K

001-36740

10.34

3/2/2020

167

 
 
 
 
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
   
   
   
 
   
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
   
   
  
    
  
  
  
  
 
  
  
 
   
   
   
10.39+

10.40+

10.41+

10.42+

10.43†

10.44*

10.45*†

10.46*†

10.47*†

Offer Letter, by and between FibroGen, Inc. 
and Thane Wettig, dated as of May 7, 2020.

Offer Letter, by and between FibroGen, Inc. 
and Mark Eisner, dated as of October 22, 
2020.

Offer Letter by and between FibroGen, Inc. 
and Juan Graham, effective as of July 30, 
2021.

Form of Executive Officer Change in Control 
and Severance Agreement.

Amended and Restated Exclusive License 
Agreement by and between FibroGen, Inc. 
and Eluminex Biosciences (Suzhou) Limited 
as of January 21, 2022.

Amended and Restated Equity Distribution 
Agreement by and between FibroGen, Inc. 
and Goldman Sachs & Co. LLC and BofA 
Securities, Inc., dated February 27, 2023.

Amendment No. 1 to Product Specific 
Agreement - Clinical Product Drug Substance 
by and between FibroGen, Inc. and Samsung 
Biologics Co., Ltd., effective as of October 
25, 2022.

Revenue Interest Financing Agreement by 
and between FibroGen, Inc. and NQ Project 
Phoebus, L.P., dated as of November 4, 2022.

Letter Agreement by and among Astellas 
Pharma Inc., Astellas Pharma Europe Ltd., 
and FibroGen, Inc., effective as of November 
4, 2022.

10-Q

10-K

001-36740

10.1

8/6/2020

001-36740

10.44

3/1/2021

10-Q

001-36740

10.2

11/9/2021

10-K

10-Q

__

__

__

__

001-36740

10.35

3/2/2020

001-36740

10.1

5/9/2022

__

__

__

__

__

__

__

__

__

__

__

__

21.1

Subsidiaries of FibroGen, Inc.

10-Q

001-36740

21.1

8/9/2021

23.1*

Consent of PricewaterhouseCoopers LLP.

24.1*

Power of Attorney (included in signature 
pages).

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31.1*

31.2*

32.1**

101.INS*

Certification of Chief Executive Officer, as 
required by Rule 13a-14(a) or Rule 15d-14(a).

Certification of Chief Financial Officer, as 
required by Rule 13a-14(a) or Rule 15d-14(a).

Certification of Principal Executive Officer 
and Principal Financial Officer, as required by 
Rule 13a-14(b) or Rule 15d-14(b) and Section 
1350 of Chapter 63 of Title 18 of the United 
States Code (18 U.S.C. §1350)(1).

Inline XBRL Instance Document: the 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 Schema Linkbase 
Document

101.CAL*

Inline XBRL Calculation Linkbase Document

101.DEF*

Inline XBRL Definition Linkbase Document

101.LAB*

Inline XBRL Labels Linkbase Document

101.PRE*

Inline XBRL Taxonomy Presentation 
Linkbase Document

104

Cover Page Interactive Data File (embedded 
within the inline XBRL document)

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* Filed herewith.
** Furnished herewith.
† Portions of this exhibit (indicated by asterisks) have been omitted as the Company has determined that (i) the omitted information is not material and (ii) 
the omitted information would likely cause competitive harm if publicly disclosed or is the type of information the Company treats as confidential.
+ Indicates a management contract or compensatory plan.
(1)

This certification accompanies the Form 10-K to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be 
incorporated by reference into any filing of FibroGen, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as 
amended (whether made before or after the date of the Form 10-K), irrespective of any general incorporation language contained in such filing.

(c) Financial Statement Schedules—See (a) 2 above. All other financial statement schedules are omitted because they are not applicable because the 
requested information is included in the consolidated financial statements or notes thereto.

ITEM 16.  FORM 10-K SUMMARY

None.

169

 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
  
    
  
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this Annual Report 
to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Francisco, State of California.

SIGNATURES

Date: February 27, 2023

Date: February 27, 2023

   FIBROGEN, INC.

/s/ Enrique Conterno
Enrique Conterno
Chief Executive Officer
(Principal Executive Officer)

/s/ Juan Graham
Juan Graham
Senior Vice President and Chief Financial Officer
(Principal Financial and Accounting Officer)

   By:    

   By:    

170

 
 
  
 
   
 
 
  
 
  
  
  
 
   
 
 
  
 
  
  
  
 
POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Enrique Conterno and 

Juan Graham, jointly and severally, his or her attorneys-in-fact, each with the power of substitution, for him or her in any and all capacities, to sign any 
amendments to this Annual Report, and to file the same, with exhibits thereto and other documents in connection therewith with the Securities and 
Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or substitutes, may do or cause to be done 
by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the 

registrant and in the capacities and on the dates indicated.

Signature

/s/ Enrique Conterno
Enrique Conterno

/s/ Juan Graham
Juan Graham

/s/ James A. Schoeneck
James A. Schoeneck

/s/ Suzanne Blaug
Suzanne Blaug

/s/ Aoife Brennan
Aoife Brennan, M.B., B.Ch.

/s/ Benjamin F. Cravatt
Benjamin F. Cravatt, Ph.D.

/s/ Jeffrey L. Edwards
Jeffrey L. Edwards

/s/ Jeffrey W. Henderson
Jeffrey W. Henderson

/s/ Maykin Ho
Maykin Ho, Ph.D.

/s/ Gerald Lema
Gerald Lema

Title

Date

Chief Executive Officer 
(Principal Executive Officer)

February 27, 2023

Senior Vice President and Chief Financial Officer (Principal 
Financial and Accounting Officer)

February 27, 2023

Chairman of the Board and Director

February 27, 2023

Director

Director

Director

Director

  Director

Director

Director

171

February 27, 2023

February 27, 2023

February 27, 2023

February 27, 2023

  February 27, 2023

February 27, 2023

February 27, 2023

 
 
  
 
 
 
   
   
 
 
  
 
 
 
   
   
 
   
   
 
 
  
 
 
 
   
   
 
 
  
 
 
 
   
   
 
   
   
 
 
  
 
 
 
   
   
 
   
   
 
 
  
 
 
 
   
   
 
   
   
 
 
  
 
 
 
   
   
 
   
   
 
 
  
 
 
 
   
   
 
   
   
  
 
 
 
 
 
   
   
 
   
   
 
 
  
 
 
 
   
   
 
   
   
 
 
  
 
 
 
   
   
 
   
   
 
FibroGen, Inc.

Non-Employee Director Compensation Policy

Exhibit 10.4

This Non-Employee Director Compensation Policy (the “Policy”) documents the terms and conditions of the cash and equity compensation that non-
employee members of the Board of Directors (the “Board”) of FibroGen, Inc. (“FibroGen”) may earn for their service on the Board from and after the 
initial public offering of the common stock of FibroGen.     

Eligible Directors

Only members of the Board who are not concurrently employees of FibroGen are eligible for compensation under this Policy (each such member, a 
“Director”). Any director may also decline compensation per policy of their affiliated entity or for any other reason prior to the start of the period of service 
to which the compensation relates.

Annual Cash Compensation

The annual cash compensation set forth below is payable in equal quarterly installments, in arrears, on the last day of each quarter in which the service 
occurred, pro-rated for any partial quarters of service.  All annual cash fees are vested upon payment.  

1.

2.

3.

4.

5.

Annual Board Service Retainer:  
a.  All Directors:  $50,000

Annual Committee Chair Service Fee (in lieu of non-Chair Service fee):
a.  Chairman of the Audit Committee:  $20,000
b.  Chairman of the Compensation Committee:  $17,500
c.  Chairman of the Nominating and Governance Committee: $10,000

Annual Committee Member (non-Chair) Service Fee: 
a.  Audit Committee:  $10,000
b.  Compensation Committee:  $7,500
c.  Nominating and Governance Committee:  $5,000

Annual Non-Executive Chairperson/Lead Independent Director Service Retainer:  
a.  Lead Independent Director:  $22,500
b.  Non-Executive Chairperson:  $100,000

Annual Scientific Advisory Board Service Fee:
a. 

$25,000

Equity Compensation

Equity awards will be granted under the FibroGen, Inc. 2014 Equity Incentive Plan (or any successor thereto, the “Plan”). All stock options granted under 
this policy will be non-statutory stock options, with an exercise price per share equal to 100% of the Fair Market Value (as defined in the Plan) of the 
underlying Company common stock on the date of grant, and a term of ten (10) years from the date of grant (subject to earlier termination in connection 
with a termination of service or a corporate transaction as provided in the Plan). All equity awards granted under this Policy will be documented on the 
applicable form of equity award agreement most recently approved for use by the Board (or a duly authorized committee thereof) for Directors.  The terms 
of the equity awards described in this Policy will be automatically adjusted upon any Capitalization Adjustment (as defined and provided for under the 
Plan).

1.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
1. 
Initial Grant:  On the date of the Director’s initial election or appointment to the Board (or, if such date is not a market trading day, the first market 
trading day thereafter), the Director will be automatically, and without further action by the Board, granted a stock option award with an aggregate value of 
$142,000 and a Restricted Stock Unit (“RSU”) grant with an aggregate value of $142,000. Such options will vest in equal quarterly installments over three 
years from the grant date, subject to the Director’s Continuous Service.  A Director who, in the one year prior to his or her initial election to serve on the 
Board as a Director, served as an employee of FibroGen or one of its subsidiaries, will not be eligible for an initial grant.

2.  Annual Grant:    On  the  date  of  each  Company  annual  stockholder  meeting,  each  person  who  is  elected  or  appointed  as  a  Director,  and  each  other 
Director who continues to serve as a Director immediately after such annual stockholder meeting, will be automatically, and without further action by the 
Board, granted a stock option award with an aggregate value of $142,000 and an RSU grant with an aggregate value of $142,000. Such options and RSUs 
will vest upon the earlier of (x) June 16 of the following year and (y) the following year’s annual stockholder meeting, subject to the Director’s Continuous 
Service.  

3.  Prorated Annual Grants.  If a Director is elected or appointed to the Board at a time other than at the annual stockholder meeting, then on the date of 
such election or appointment (or, if such date is not a market trading day, the first market trading day thereafter), the Director will be automatically, and 
without further action by the Board, granted (a) a stock option award with an aggregate value of $142,000 multiplied by the Applicable Fraction (as defined 
below) and (b) an RSU grant with an aggregate value of $142,000 multiplied by the Applicable Fraction (a “Prorated Annual Grant”). The “Applicable 
Fraction” means a fraction with (a) a numerator equal to the number of days between the date of the Director’s initial election or appointment to the Board 
and the date which is the first anniversary of the date of the most recent annual stockholder meeting occurring before the Director is elected or appointed to 
the Board, and (b) a denominator equal to 365.  

4.  Option  Value.  The  value  of  a  stock  option  to  be  granted  under  the  Director  Compensation  Policy  shall  be  determined  using  the  same  method  the  
Company uses to calculate stock option awards to its employees, as approved by the Compensation Committee of the Board, using the grant date fair value, 
rounding down to the nearest share.

5.  RSU Value. The number of shares subject to RSUs granted under the Director Compensation Policy shall be determined based on the closing price on 
the NASDAQ of the Company’s common on the grant date, rounded down to the nearest share.

6.  Vesting.    Vesting  of  awards  granted  under  this  Policy  will  cease  if  the  Director  resigns  from  the  Board  or  otherwise  ceases  to  serve  as  a  Director, 
unless  the  Board  determines  that  the  circumstances  warrant  continuation  of  vesting.    All  equity  awards  granted  under  this  Policy  will  vest  in  full 
immediately prior to a Change in Control (as defined in the Plan), subject to the Director’s Continuous Service (as defined in the Plan) as of the day prior to 
the closing of the Change in Control.

Reimbursement of Expenses

The  Company  will  reimburse  Directors  for  ordinary,  necessary  and  reasonable  out-of-pocket  travel  expenses  to  cover  in-person  attendance  at  and 
participation in Board meetings, and other activities performed in the course of their service on the Board.

2.

 
 
 
 
 
 
 
 
 
  
Philosophy

This  Policy  is  designed  to  attract  and  retain  experienced,  talented  individuals  to  serve  on  the  Board.  The  Board  anticipates  that  the  Board,  or  a  duly 
authorized committee thereof, will generally review Director compensation on an annual basis following the initial public offering.  The Policy, as amended 
from  time  to  time,  may  take  into  account  the  time  commitment  expected  of  Directors,  best  practices  and  market  rates  in  Director  compensation,  the 
economic  position  of  FibroGen,  broader  economic  conditions,  historical  compensation  structure,  the  advice  of  the  compensation  consultant  that  the 
Compensation Committee or the Board may retain from time to time, and the potential dilutive effect of equity awards on our stockholders.  

Under this Policy, Directors receive cash compensation in the form of retainers to recognize their day to day contributions, the level of responsibility as 
well as the necessary time commitment involved in serving in a leadership role and/or on committees. Directors also receive equity compensation because 
we  believe  that  stock  ownership  provides  an  incentive  to  act  in  ways  that  maximize  long-term  stockholder  value.    Further,  we  believe  that  stock-based 
awards are essential to attracting and retaining talented Board members. When options are granted, these options have an exercise price equal to not less 
than the fair market value of FibroGen’s Common Stock on the date of grant, so that options provide a return only if the fair market value appreciates over 
the  period  in  which  the  option  vests  and  remains  exercisable.  We  believe  that  the  vesting  acceleration  provided  in  the  case  of  a  change  in  control  is 
consistent with market practices and is critical to attracting and retaining high quality Directors.

3.

 
 
  
Adopted:  September 17, 2014
Amended: March 4, 2015
Amended:  February 23, 2016, Effective as of the 2016 Annual Meeting of Stockholders
Amended: June 5, 2018
Amended: June 5, 2019
Amended: February 10, 2020
Amended: April 13, 2022
Amended: February 14, 2023

4.

 
  
FIBROGEN, INC.

Common Stock ($0.01 par value)
Having an Aggregate Offering Price of up to
$200 Million

Amended and Restated Equity Distribution Agreement

Exhibit 10.44

February 27, 2023

Goldman Sachs & Co. LLC
200 West Street
New York, New York 10282

BofA Securities, Inc.
One Bryant Park
New York, NY 10036

Ladies and Gentlemen:

Reference is made to the Equity Distribution Agreement, dated August 8, 2022 (the “Original Agreement”), by and between FibroGen, Inc., a 

Delaware corporation  (the “Company”) and Goldman Sachs & Co. LLC (the “Existing Manager”).

The Company and the Existing Manager wish to amend and restate the Original Agreement effective on and after the date hereof in order to 

include BofA Securities, Inc. as an additional sales agent (together with the Existing Manager, each a “Manager” and, collectively the “Managers”).

The Company confirms its agreement with the Managers and the Original Agreement is hereby amended and restated as follows (as amended 

and restated, the “Agreement”):

1.

Description of Shares.  The Company proposes to issue and sell through or to the Managers, as sales agents and/or principals, shares of 
the Company’s common stock, $0.01 par value (the “Common Stock”) having an aggregate offering price of up to $200 million (the “Shares”), from time 
to time during the term of this Agreement and on the terms set forth in Section 3 of this Agreement. The Company hereby appoints the Managers as the 
exclusive agents of the Company for the purpose of making offers and sales of the Shares pursuant to this Agreement. The Company agrees that whenever
it determines to sell the Shares directly to a Manager as principal, it will enter into a separate agreement (each, a “Terms Agreement”) in substantially the 
form of Annex I hereto, relating to such sale in accordance with Section 3 of this Agreement. Certain terms used herein are defined in Section 19 hereof.

2.

Representations and Warranties.  The Company represents and warrants to, and agrees with, the Managers at the Execution Time and 

on each such time the following representations and warranties are repeated or deemed to be made pursuant to this Agreement, as set forth below.

1

 
 
 
 
 
 
 
(a)

 Form S-3. The Company meets the requirements for use of Form S-3 under the Act and has prepared and filed 
with  the  Commission  an  automatic  shelf  registration  statement  on  Form  S-3,  including  a  Base  Prospectus  and  a  prospectus  related  to  the  Shares,  for 
registration  under  the  Act  of  the  offering  and  sale  of  the  Shares  and  other  securities  of  the  Company.  Such  Registration  Statement,  including  any 
amendments thereto filed prior to any such time this representation is repeated or deemed to be made, automatically became effective on August 8, 2022 
and no stop order suspending the effectiveness of the Registration Statement has been issued under the Act and no proceedings for that purpose have been 
instituted  or  are  pending  or,  to  the  knowledge  of  the  Company,  are  contemplated  or  threatened  by  the  Commission,  and  any  request  on  the  part  of  the 
Commission for additional or supplemental information has been complied with. The Prospectus will contain all information required by the Act and the 
rules thereunder, and, except to the extent the Managers shall agree in writing to a modification, shall be in all substantive respects in the form furnished to 
the Existing Manager prior to the Initial Execution Time or prior to any such time this representation is repeated or deemed to be made. The Registration 
Statement, at the Initial Execution Time, each such time this representation is repeated or deemed to be made, and at all times during which a prospectus is 
required by the Act to be delivered (whether physically or through compliance with Rule 172 or any similar rule) in connection with any offer or sale of 
Shares, meets the requirements set forth in Rule 415(a)(1)(x). The initial Effective Date of the Registration Statement was not earlier than the date three 
years before the Initial Execution Time. Any reference herein to the Registration Statement, the Base Prospectus, the Prospectus or any Interim Prospectus 
Supplement shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 which were filed 
under  the  Exchange  Act  on  or  before  the  Effective  Date  of  the  Registration  Statement  or  the  issue  date  of  the  Base  Prospectus,  the  Prospectus  or  any 
Interim  Prospectus  Supplement,  as  the  case  may  be  and,  with  respect  to  times  after  the  Effective  Time,  shall  include  such  documents  filed  under  the 
Exchange  Act  after  the  Effective  Date  of  the  Registration  Statement  or  the  issue  date  of  the  Base  Prospectus,  the  Prospectus  or  any  Interim  Prospectus 
Supplement, as the case may be, and deemed to be incorporated therein by reference and at or before such times; and any reference herein to the terms 
“amend,”  “amendment”  or  “supplement”  with  respect  to  the  Registration  Statement,  the  Base  Prospectus,  the  Prospectus  or  any  Interim  Prospectus 
Supplement  shall  be  deemed  to  refer  to  and  include  the  filing  of  any  document  under  the  Exchange  Act  after  the  Effective  Date  of  the  Registration 
Statement or the issue date of the Base Prospectus, the Prospectus or any Interim Prospectus Supplement, as the case may be, deemed to be incorporated 
therein by reference. Notwithstanding the foregoing, the representations and warranties in this subsection shall not apply to statements in or omissions from 
the Registration Statement or any post-effective amendment or the Prospectus or any amendments or supplements thereto, made in reliance upon and in 
conformity with information furnished to the Company in writing by the Managers relating to the Managers expressly for use therein.

(b)

Successor Registration Statement.  To the extent that the Registration Statement is not available for the sales of 
the Shares as contemplated by this Agreement, the Company shall file a new registration statement with respect to any additional Common Stock necessary 
to complete such sales of the Shares and shall cause such registration statement to become effective as promptly as practicable. After the effectiveness of 
any  such  registration  statement,  all  references  to  “Registration  Statement”  included  in  this  Agreement  shall  be  deemed  to  include  such  new  registration 
statement, including all documents incorporated by reference therein pursuant to Item 12 of Form S-3, and all references to “Base Prospectus” included in 
this Agreement shall be deemed to include the final form of prospectus, including all documents incorporated therein by reference, included in any such 
registration statement at the time such registration statement became effective.

2

 
(c)

No Material Misstatements or Omissions in the Registration Statement.  On each Effective Date, at the Execution 
Time, at each deemed effective date with respect to the Managers pursuant to Rule 430B(f)(2) under the Act, at each Applicable Time, at each Settlement 
Date, at each Time of Delivery and at all times during which a prospectus is required by the Act to be delivered (whether physically or through compliance 
with  Rule  172  or  any  similar  rule)  in  connection  with  any  offer  or  sale  of  Shares,  the  Registration  Statement  complied  and  will  comply  in  all  material 
respects with the applicable requirements of the Act and the rules thereunder and did not and will not contain any untrue statement of a material fact or 
omit to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading; and on the date of any filing 
pursuant to Rule 424(b), at each Applicable Time, on each Settlement Date, at each Time of Delivery and at all times during which a prospectus is required 
by the Act to be delivered (whether physically or through compliance with Rule 172 or any similar rule) in connection with any offer or sale of Shares, the 
Prospectus (together with any supplement thereto) complied and will comply in all material respects with the applicable requirements of the Act and the 
rules thereunder and did not and will not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the 
statements  therein,  in  the  light  of  the  circumstances  under  which  they  were  made,  not  misleading;  provided,  however,  that  the  Company  makes  no 
representations or warranties as to the information contained in or omitted from the Registration Statement or the Prospectus (or any supplement thereto) in 
reliance  upon  and  in  conformity  with  information  furnished  in  writing  to  the  Company  by  the  Managers  specifically  for  inclusion  in  the  Registration 
Statement or the Prospectus (or any supplement thereto).

(d)

Disclosure Package.    At  the  Initial  Execution  Time,  at  the  Execution  Time,  at  each  Applicable  Time,  at  each 
Settlement Date and each Time of Delivery, the Disclosure Package does not contain any untrue statement of a material fact or omit to state any material 
fact  necessary  in  order  to  make  the  statements  therein,  in  the  light  of  the  circumstances  under  which  they  were  made,  not  misleading.  The  preceding 
sentence does not apply to statements in or omissions from the Disclosure Package based upon and in conformity with written information furnished to the 
Company by the Managers specifically for use therein.

(e)

Incorporated  Documents.    The  documents  incorporated  or  deemed  to  be  incorporated  by  reference  in  the 
Registration Statement and the Prospectus (i) at the time they were or hereafter are filed with the Commission, complied and will comply in all material 
respects with the requirements of the Exchange Act and the rules and regulations of the Commission thereunder and (ii) when read together with the other 
information in the Prospectus and the Disclosure Package at any Applicable Time and when read together with the other information in the Prospectus at 
the date of the Prospectus and at any Settlement Date or Time of Delivery, will not include an untrue statement of a material fact or omit to state a material 
fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

(f)

Ineligible Issuer.  The Company is not an “ineligible issuer” (as defined in Rule 405 under the Act). 

(g)

Notice  of  Other  Sales.    Prior  to  the  execution  of  this  Agreement,  the  Company  has  not,  directly  or  indirectly, 
offered  or  sold  any  Shares  by  means  of  any  “prospectus”  (within  the  meaning  of  the  Act)  or  used  any  “prospectus”  (within  the  meaning  of  the  Act)  in 
connection with the offer or sale of the Shares, and from and after the execution of this Agreement, the Company will not, directly or indirectly, offer or sell 
any Shares by means of any “prospectus” (within the meaning of the Act) or use any “prospectus” (within the meaning of the Act) in connection with the 
offer or sale of the Shares, other than the Prospectus, as amended or supplemented from time to time in accordance with the provisions of this Agreement; 
the Company has not, directly or indirectly, prepared, used or referred to any Issuer Free Writing Prospectus in connection with the offering and sale of the 
Shares.

No  Stop  Orders.    The  Registration  Statement  is  not  the  subject  of  a  pending  proceeding  or  examination  under 
Section 8(d) or 8(e) of the Act, and the Company is not the subject of a pending proceeding under Section 8A of the Act in connection with the offering of 
the Shares.

(h)

Rule 101 of Regulation M under the Exchange Act by subsection (c)(1) of such rule.

(i)

Regulation M.  The Common Stock constitutes an “actively-traded security” exempted from the requirements of 

3

 
Sales Agency Agreements.  The Company has not entered into any other sales agency agreements or other similar 
arrangements with any agent or any other representative in respect of any at the market offering (within the meaning of Rule 415(a)(4) under the Act) of the 
Shares.

(j)

Offering  Materials.    The  Company  has  not  distributed  and  will  not  distribute,  prior  to  the  termination  of  this 
Agreement, any offering material in connection with the offering and sale of the Shares other than the Prospectus and any Issuer Free Writing Prospectus 
reviewed and consented to by the Managers and identified in Schedule I hereto.

(k)

(l)

No Material Adverse Change in Business.   Neither the Company nor any of its subsidiaries has sustained since 
the date of the latest audited financial statements included or incorporated by reference in the Disclosure Package and the Prospectus any material loss or 
interference  with  its  business  from  fire,  explosion,  flood  or  other  calamity,  whether  or  not  covered  by  insurance,  or  from  any  labor  dispute  or  court  or 
governmental action, order or decree, otherwise than as set forth or contemplated in the Disclosure Package and the Prospectus; and, since the respective 
dates as of which information is given in the Registration Statement, Disclosure Package and the Prospectus, there has not been any material change in the 
capital stock (other than as a result of (A) the exercise of any stock options outstanding as of the date of this Agreement or warrants outstanding as of the 
date  of  this  Agreement,  (B)  the  award  of  stock  options  in  the  ordinary  course  of  business  pursuant  to  the  Company’s  equity  incentive  plans  or  (C)  the 
repurchase  of  shares  of  stock  in  connection  with  any  early  exercise  of  stock  options  by  option  holders  from  employees  terminating  their  service  to  the 
Company, in each case as such options, warrants and equity incentive plans are described in the Disclosure Package or the Prospectus) or long-term debt of 
the Company or any of its subsidiaries or any material adverse change, or any development involving a prospective material adverse change, in or affecting 
the general affairs, management, financial position, stockholders’ equity or results of operations of the Company and its subsidiaries, otherwise than as set 
forth or contemplated in the Registration Statement, Disclosure Package and the Prospectus.

(m)

Title  to  Property.    The  Company  and  its  subsidiaries  have  good  and  marketable  title  in  fee  simple  to  all  real 
property and good and marketable title to all personal property owned by them, in each case free and clear of all liens, encumbrances and defects except as 
described in the Registration Statement, the Disclosure Package and the Prospectus or as do not materially affect the value of such property and do not 
interfere with the use made and proposed to be made of such property by the Company or any of its subsidiaries; and any real property and buildings held 
under lease by the Company or any of its subsidiaries are held by them under valid, subsisting and enforceable leases or subleases (subject to the effects of 
(A) bankruptcy, insolvency, fraudulent conveyance, fraudulent transfer, reorganization, moratorium or other similar laws relating to or affecting the rights 
or remedies of creditors generally; (B) the application of general principles of equity (including, without limitation, concepts of materiality, reasonableness, 
good faith and fair dealing, regardless of whether enforcement is considered in proceedings at law or in equity); and (C) applicable law and public policy 
with respect to rights to indemnity and contribution) with such limitations on the Company or its subsidiaries as are not material and do not interfere with 
the use made and proposed to be made of such real property and buildings by the Company or any of its subsidiaries.

(n)

Good  Standing.    The  Company  has  been  duly  incorporated  and  is  validly  existing  as  a  corporation  in  good 
standing under the laws of the State of Delaware, with power and authority (corporate and other) to own its properties and conduct its business as described 
in the Registration Statement, Disclosure Package and the Prospectus, and has been duly qualified as a foreign corporation for the transaction of business 
and  is  in  good  standing  under  the  laws  of  each  other  jurisdiction  in  which  it  owns  or  leases  properties  or  conducts  any  business  so  as  to  require  such 
qualification, or is subject to no material liability or disability by reason of the failure to be so qualified or be in good standing in any such jurisdiction; and 
each  subsidiary  of  the  Company  has  been  duly  incorporated  or  formed  and  is  validly  existing  as  a  corporation  or  other  business  organization  in  good 
standing under the laws of its jurisdiction of incorporation or formation, and has been duly qualified as a foreign corporation or other business organization 
for  the  transaction  of  business  and  is  in  good  standing  under  the  laws  of  each  other  jurisdiction  in  which  it  owns  or  leases  properties  or  conducts  any 
business  so  as  to  require  such  qualification,  or  is  subject  to  no  material  liability  or  disability  by  reason  of  the  failure  to  be  so  qualified  or  be  in  good 
standing in any such jurisdiction.

4

 
(o)

Capitalization.    The  Company  has  an  authorized  capitalization  as  set  forth  in  the  Registration  Statement,  the 
Disclosure Package and the Prospectus and all of the issued shares of capital stock of the Company have been duly and validly authorized and issued and 
are  fully  paid  and  non-assessable  and  conform  to  the  description  thereof  contained  in  the  Registration  Statement,  the  Disclosure  Package  and  the 
Prospectus; and all of the issued shares of capital stock and equity interests of each subsidiary of the Company have been duly and validly authorized and 
issued, are fully paid and non-assessable and (except for directors’ qualifying shares) are owned directly or indirectly by the Company, free and clear of all 
liens, encumbrances, equities or claims. 

Due Authorization of the Shares.    The  Shares  have  been  duly  and  validly  authorized  and,  when  the  Shares  are 
issued and delivered against payment therefor as provided herein, such Shares will be duly and validly issued and fully paid and non‑assessable and will 
conform to the description of the Common Stock contained in the Registration Statement, the Disclosure Package and the Prospectus.

(p)

(q)

No Preemptive or Registration Rights.  Except as described in the Registration Statement, the Disclosure Package 
and the Prospectus, there are no (i) preemptive rights or other rights to subscribe for or to purchase or any restriction upon the voting or transfer of, any 
equity securities of the Company or any of its subsidiaries or (ii) outstanding options or warrants to purchase any securities of the Company or any of its 
subsidiaries.  Neither the filing of the Registration Statement nor the offering or sale of the Shares as contemplated by this Agreement gives rise to any 
rights for or relating to the registration of any securities of the Company, except such rights as have been waived or satisfied.

(r)

No  Conflict  or  Violation.    (i)  The  issue  and  sale  of  the  Shares  and  the  compliance  by  the  Company  with  this 
Agreement and (ii) the execution, delivery and performance of this Agreement and the consummation of the transactions contemplated herein and in the 
Registration  Statement,  the  Disclosure  Package  and  the  Prospectus  (including  the  issuance  and  sale  of  the  Shares  and  the  application  of  the  use  of  the 
proceeds from the sale of the Shares as described therein under the caption “Use of Proceeds”), in each case, do not and will not, whether with or without 
the giving of notice or passage of time or both (A) materially conflict with or result in a material breach or violation of any of the terms or provisions of, or 
constitute a material default under, any indenture, mortgage, deed of trust, loan agreement, lease or other agreement or instrument to which the Company or 
any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or 
any of its subsidiaries is subject, (B) will not conflict with or result in a breach or violation of any of the terms or provisions of the Amended and Restated 
Certificate of Incorporation or Amended and Restated Bylaws of the Company or the corresponding governing documents of any of its subsidiaries and (C) 
will  not  conflict  with  or  result  in  a  breach  or  violation  of  any  of  the  terms  or  provisions  of  any  statute  or  any  order,  rule  or  regulation  of  any  court  or 
governmental  agency  or  body  having  jurisdiction  over  the  Company  or  any  of  its  subsidiaries  or  any  of  their  properties;  and  no  consent,  approval, 
authorization, order, registration or qualification of or with any such court or governmental agency or body is required for the issue and sale of the Shares 
or  the  consummation  by  the  Company  of  the  transactions  contemplated  by  this  Agreement,  except  for  the  registration  under  the  Act  of  the  Shares,  the 
approval  by  the  Financial  Industry  Regulatory  Authority  (“FINRA”)  of  the  terms  and  arrangements  and  such  consents,  approvals,  authorizations, 
registrations or qualifications as may be required under state securities or Blue Sky laws in connection with the purchase and distribution of the Shares by 
the Managers.

(s)

Absence of Violations, Defaults and Conflicts.  Neither the Company nor any of its subsidiaries is (i) in violation 
of its articles of incorporation or bylaws (or similar organizational documents), (ii) in default in the performance or observance of any material obligation, 
agreement, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement, lease or other agreement or instrument to which it is 
a party or by which it or any of its properties may be bound or (iii) in violation or default of any statute, law, rule, regulation, judgment, order or decree of 
any court, regulatory body, administrative agency, governmental body, arbitrator or other authority having jurisdiction over the Company, its subsidiaries or 
any of their properties, as applicable; except in the case of (iii), for such defaults as would not, individually or in the aggregate, have a Material Adverse 
Effect (as defined below).

5

 
(t)

Due Authorization.  The execution and delivery of, and the performance by the Company of its obligations under, 
this Agreement (including but not limited to  the issuance and sale of the Shares and the use of proceeds from the sale of the Shares as described in the 
Registration  Statement,  the  Disclosure  Package  and  the  Prospectus  under  the  caption  “Use  of  Proceeds”)  have  been  duly  and  validly  authorized  by  all 
necessary corporate action on the part of the Company and this Agreement has been duly executed and delivered by the Company. 

(u)

  Summaries  of  Law  and  Documents.    The  statements  set  forth  in  the  Registration  Statement,  the  Disclosure 
Package and the Prospectus under the captions “Description of Capital Stock”, insofar as they purport to constitute a summary of the terms of the Shares, 
and under the captions “Business—Roxadustat for the Treatment of Anemia in Chronic Kidney Disease in China”, “Business—Government Regulation”, 
“Business—Intellectual Property”, “Risk Factors— Risks Related to Our Intellectual Property”, “Risk Factors—Risks Related to Government Regulation” 
and  “Certain  Relationships  and  Related  Party  Transactions”,  insofar  as  they  purport  to  describe  the  provisions  of  the  laws  and  documents  referred  to 
therein, are accurate, complete and fair in all material respects.

(v)

Filings and Governmental Licenses.  The Company and its subsidiaries have filed or caused to be filed with the 
appropriate  governmental  entities  all  forms,  statements,  reports,  and  documents  (including  all  exhibits,  amendments,  and  supplements  thereto)  (each  a 
“Filing”)  required  to  be  filed  by  it  with  respect  to  the  respective  businesses  of  the  Company  and  its  subsidiaries  and  each  of  their  facilities  under  all 
applicable laws and the respective rules and regulations thereunder, all of which complied in all respects with all applicable requirements of the appropriate 
law  and  rules  and  regulations  thereunder  in  effect  on  the  date  each  such  Filing  was  made,  except  where  the  failure  to  do  so  would  not  reasonably  be 
expected  to  have  a  Material  Adverse  Effect.  The  Company  and  its  subsidiaries  (i)  hold  all  licenses,  registrations,  certificates,  clearances,  approvals, 
certifications, exemptions, authorizations and permits from governmental authorities (collectively, “Governmental Licenses”) which are necessary to the 
conduct  of  the  business  now  operated  by  them,  except  for  such  Governmental  Licenses  the  failure  of  which  to  hold  would  not,  individually  or  in  the 
aggregate, reasonably be expected to have a Material Adverse Effect, (ii) are in compliance with the terms and conditions of all Governmental Licenses, 
and all Governmental Licenses are valid and in full force and effect, except as would not, individually or in the aggregate, reasonably be expected to have a 
Material  Adverse  Effect,  and  (iii)  have  not  received  any  written  notice  of  proceedings  relating  to  the  revocation  or  modification  of  any  Governmental 
License.

(w)

Payment of Taxes.  The Company and each of its subsidiaries has filed all material U.S. federal, state, local and 
foreign tax returns which have been required to be filed and have paid all taxes indicated by such returns and all assessments received by them or any of 
them to the extent that such taxes have become due, except for any such taxes being contested in good faith and for which an adequate reserve or accrual 
has been established in accordance with U.S. generally accepted principles of accounting (“GAAP”).

6

 
(x)

Possession of Intellectual Property.  To the knowledge of the Company, the Company and its subsidiaries own or 
possess licenses to practice and use all material inventions, patent applications, patents, trademarks, trade names, service names, copyrights, trade secrets, 
domain names, technology, know-how and other intellectual property described in the Registration Statement, the Disclosure Package, and the Prospectus 
as being owned or licensed by them or which are necessary for the conduct of their respective businesses as currently conducted or as currently proposed to 
be  conducted  as  described  in  the  Registration  Statement,  the  Disclosure  Package,  and  the  Prospectus  (collectively,  “Intellectual  Property”).      To  the 
knowledge of the Company, there are no third parties who have or will be able to establish ownership rights in or to any Intellectual Property owned or 
purported to be owned by the Company or each of its subsidiaries, or any right to practice or use any Intellectual Property owned or purported to be owned 
by or exclusively licensed to the Company or any of its subsidiaries, except for customary reversionary rights of third-party licensors. To the knowledge of 
the  Company,  neither  the  Company  nor  any  of  its  subsidiaries  is  infringing,  misappropriating,  diluting,  or  otherwise  violating,  or  has  infringed, 
misappropriated, diluted, or otherwise violated, any intellectual property rights of third parties with respect to the Company’s development, manufacture, 
and, if approved, commercialization, of the roxadustat and pamrevlumab products described in the Registration Statement, the Disclosure Package, and the 
Prospectus in a manner that, in the aggregate, would have a Material Adverse Effect.  To the knowledge of the Company, the Company has disclosed to 
Managers  and  described  in  the  Registration  Statement,  the  Disclosure  Package,  and  the  Prospectus  all  material  information  regarding  ownership,  third-
party rights, and any obligations to pay a material royalty on, to grant a license or option to, or to provide other material consideration to any third party 
with respect to the Intellectual Property To the knowledge of the Company, all employees, consultants, agents, and contractors engaged in the development 
of  Intellectual  Property  on  behalf  of  the  Company  or  any  of  its  subsidiaries  have  executed  invention  assignment  agreements  whereby  such  employees, 
consultants,  agents,  and  contractors  presently  assign  all  of  their  right,  title,  and  interest  in  and  to  such  Intellectual  Property  to  the  Company,  and  to  the 
Company's knowledge, no such agreement has been breached or violated. To the Company’s knowledge, no employee, consultant, agent, or contractor of 
the Company or any of its subsidiaries is in or has ever been in violation in any material respect of any term of any employment contract, patent disclosure 
agreement, invention assignment agreement, non-competition agreement, non-solicitation agreement nondisclosure agreement or any restrictive covenant 
to or with a former employer or other third party where the basis of such violation relates to such individual’s engagement with the Company or actions 
undertaken  while  employed  or  engaged  with  the  Company  in  a  manner  that,  individually  or  in  the  aggregate,  would  have  a  Materially  Adverse  Effect. 
There is no pending or, to the Company's knowledge, no threatened action, suit, proceeding, or claim by third parties asserting that the Company or any of 
its  subsidiaries  infringes,  misappropriates,  dilutes,  or  otherwise  violates,  or  would,  upon  the  manufacturing  or  commercialization  of  the  roxadustat  or 
pamrevlumab products described in the Registration Statement, the Disclosure Package, and the Prospectus, infringe, misappropriate, dilute, or otherwise 
violate  any  intellectual  property  rights  of  third  parties,  and  neither  the  Company  nor  any  of  its  subsidiaries  has  received  any  notice  of  any  claim  of 
infringement, misappropriation, or other violation of, or conflict with, any such rights of third parties.  Except as disclosed in the Registration Statement, 
the Disclosure Package, and the Prospectus, there is no pending or, to the Company's knowledge, no threatened action, suit, proceeding, or claim by others 
(i) asserting breach of an agreement pursuant to which Intellectual Property was licensed to the Company or to one of its subsidiaries, (ii) challenging the 
Company’s or any of its subsidiaries’ rights in or to any Intellectual Property (except in the ordinary course of patent prosecution) or (iii) challenging the 
validity,  enforceability,  or  scope  of  any  Intellectual  Property  (except  in  the  ordinary  course  of  patent  prosecution)  that  would  have  a  Material  Adverse 
Effect. There is no pending, or to the knowledge of the Company, no threatened action, suit, proceeding, or claim by the Company or any of its subsidiaries 
that a third party infringes, misappropriates, or otherwise violates or conflicts with any Intellectual Property owned, purported to be owned, or exclusively 
licensed  to  the  Company  or  any  of  its  subsidiaries  in  a  manner  that  would  have  a  Material  Adverse  Effect.  To  the  knowledge  of  the  Company,  (i)  the 
roxadustat and pamrevlumab products described in the Registration Statement, the Disclosure Package, and the Prospectus as under development and/or 
commercialization fall within the scope of the claims of one or more patents or patent applications owned by, or exclusively licensed to, the Company,  (ii) 
no government funding, facilities, or resources belonging to a university, college, other educational institution or research center were used in development 
of the Intellectual Property, and (iii) no government funding, facilities, or resources belonging to a university, college, or other educational institution or 
research center has any claim or right in or to any Intellectual Property that is owned or purported to be owned by the Company or any of its subsidiaries

7

 
(y)

Patents.    To  the  knowledge  of  the  Company,  (i)  all  patents  and  patent  applications  included  in  the  Intellectual 
Property have been duly and properly filed, and each such issued patent is being diligently maintained and each such pending patent application is being 
diligently prosecuted; (ii) the Company has complied with its duty of candor and disclosure to the U.S. Patent and Trademark Office (the “U.S. PTO”) and 
to  any  relevant  foreign  patent  authority  having  similar  requirements  in  connection  with  such  patents  and  patent  applications  included  in  the  Intellectual 
Property  for  which  it  has  filing,  prosecution,  and/or  maintenance  responsibilities;  and  (iii)  the  Company  is  not  aware  of  any  prior  art  or  public  or 
commercial  activity  or  other  facts  required  to  be  disclosed  to  the  U.S.  PTO  or  any  relevant  foreign  patent  authority  that  was  not  disclosed  and  that,  if 
disclosed,  would  preclude  the  grant  of  a  patent  in  connection  with  any  such  patent  application,  and  of  which  failure  to  disclose  would  reasonably  be 
expected  to  form  the  basis  of  a  finding  of  invalidity  or  unenforceability  with  respect  to  any  patents  that  have  been  issued  with  respect  to  such  patent 
applications.

8

 
(z)

Regulatory Compliance. (i)  The  Company  has  operated  and  currently  is  in  compliance  in  all  respects  with  all 
Health Care Laws (as defined below) applicable to the ownership, testing, development, manufacture, sales, marketing, promotion, packaging, processing, 
use,  distribution,  storage,  import,  export  or  disposal  of  any  of  the  Company's  product  candidates  or  any  product  manufactured  or  distributed  by  the 
Company;  (ii)  the  Company  and  its  subsidiaries  (A)  possess,  and  are  in  compliance  with  the  terms  of,  all  Governmental  Licenses  including,  without 
limitation, all Governmental Licenses required by the United States Food and Drug Administration ("FDA") and/or by any other governmental agencies, 
which Governmental Licenses are in full force and effect, (B) have not received any notice from any governmental agency relating to the revocation or 
modification  of  any  Governmental  Licenses  that,  if  determined  adversely  to  the  Company  or  its  subsidiaries,  would  reasonably  be  expected  to  have  a 
material  impact  on  the  Company  and  (C)  are  not  aware  of  any  other  action  by  any  governmental  agency  to  limit,  suspend,  terminate  or  revoke  any 
Governmental License held by the Company or any of its subsidiaries; (iii) (A) the studies, tests and preclinical and clinical trials conducted by or on behalf 
of or sponsored by the Company were, and if still pending are being, conducted in all material respects in accordance with standard medical and scientific 
research  procedures  and  controls,  all  Governmental  Licenses,  and  all  Health  Care  Laws  (B)  none  of  the  studies,  tests  and  preclinical  and  clinical  trials 
conducted by or on behalf of or sponsored by the Company involved any investigator who has been disqualified as a clinical investigator or has been found 
by the FDA to have engaged in scientific misconduct, (C) the Company is not aware of any studies, tests or trials the results of which reasonably call into 
question the clinical trial results described or referred to in the Registration Statement, Disclosure Package and the Prospectus and (D) except as disclosed 
in the Registration Statement, Disclosure Package and the Prospectus, the Company and its subsidiaries have not received any communication, notice or 
correspondence  from  any  governmental  agencies  requiring  the  termination,  material  modification  or  suspension  of  any  studies,  tests  or  preclinical  and 
clinical  trials  conducted  by  or  on  behalf  of  or  sponsored  by  the  Company;  (iv)  each  description  of  any  studies,  tests  or  preclinical  and  clinical  trials 
conducted by or on behalf of or sponsored by the Company contained in the Registration Statement, Disclosure Package and the Prospectus is accurate and 
complete in all material respects and fairly presents the data about and derived from such studies, tests and trials; (v) all testing, manufacturing, packaging, 
processing, labeling, distribution, marketing, promotion, storage, import, export or disposal of the Company’s or its subsidiaries’ products by the Company, 
its subsidiaries or to the Company’s knowledge, their suppliers, vendors or partners have been conducted in compliance with all applicable laws, rules and 
regulations,  including  applicable  Health  Care  Laws;  (vi)  neither  the  Company  nor  any  subsidiary  has  received  written  notice  of  any  claim,  action,  suit, 
proceeding, hearing, enforcement, investigation, arbitration or other action from any governmental or regulatory authority or third party alleging that any 
product,  operation,  or  activity  is  in  violation  of  any  Health  Care  Laws  or  Governmental  Licenses  and  the  Company  has  no  knowledge  that  any  such 
governmental  or  regulatory  authority  or  third  party  is  considering  any  such  claim,  litigation,  arbitration,  action,  suit,  investigation  or  proceeding;  (vii) 
neither  the  Company  nor  any  subsidiary  has  received  any  FDA  Form  483,  written  notice  of  adverse  finding,  warning  letter,  untitled  letter  or  other 
correspondence  or  written  notice  from  any  governmental  or  regulatory  authority  alleging  or  asserting  noncompliance  with  any  applicable  laws  or 
regulations, including the Health Care Laws, or the terms of any Governmental Licenses; (viii) (A) the Company and each subsidiary has filed, obtained, 
maintained  or  submitted  all  material  reports,  documents,  forms,  notices,  applications,  records,  claims,  submissions  and  supplements  or  amendments  as 
required by any Health Care Laws or Governmental Licenses, (B) all such reports, documents, forms, notices, applications, records, claims, submissions 
and supplements or amendments were complete and correct in all material respects and not misleading on the date filed (or were corrected or supplemented 
by a subsequent submission), and (C) the Company is not aware of any reasonable basis for any material liability with respect to such filings; and (D) 
neither the Company nor its subsidiaries have, and to the knowledge of the Company, the Company’s officers, employees and agents have not, made any 
untrue statement of a material fact or fraudulent statement to any governmental or regulatory authority or failed to disclose a material fact required to be 
disclosed to any governmental or regulatory authority; (ix) the Company is not a party to and does not have any ongoing reporting obligations pursuant to 
any corporate integrity agreements, deferred or non-prosecution agreements, monitoring agreements, consent decrees, settlement orders, plans of correction 
or similar agreements with or imposed by any governmental agency; and (x) neither the Company or any of its subsidiaries or their employees, officers, 
directors or, to the Company’s knowledge, agents, has been excluded, suspended or debarred from participation in any government health care program or 
human clinical research or, to the knowledge of the Company, is subject to a governmental inquiry, investigation, proceeding, or other similar action that 
could reasonably be expected to result in debarment, suspension, or exclusion. 

9

 
The term “Health Care Laws” means Title XVIII of the Social Security Act, 42 U.S.C. §§ 1395-1395hhh (the Medicare statute), Title 
XIX of the Social Security Act, 42 U.S.C. §§ 1396-1396v (the Medicaid statute) and any other law governing or pertaining to a government healthcare 
program; the Federal Anti-Kickback Statute, 42 U.S.C. § 1320a-7b(b); the civil False Claims Act, 31 U.S.C. §§ 3729 et seq.; the criminal False Claims Act 
42 U.S.C. 1320a-7b(a); any criminal laws relating to health care fraud and abuse, including but not limited to 18 U.S.C. Sections 286, 287, 1035, 1347, 
1349  and  the  health  care  fraud  criminal  provisions  under  the  Health  Insurance  Portability  and  Accountability  Act  of  1996,  42  U.S.C.  §§  1320d  et  seq., 
(“HIPAA”); the Civil Monetary Penalties Law, 42 U.S.C. §§ 1320a-7a; the Physician Payments Sunshine Act, 42 U.S.C. § 1320a-7h; the Exclusions Law, 
42 U.S.C. § 1320a-7; HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act, 42 U.S.C. §§ 17921 et seq., and 
the regulations promulgated thereunder (“HITECH”); the Federal Food, Drug, and Cosmetic Act, 21 U.S.C. §§ 301 et seq.; the Public Health Service Act, 
42 U.S.C. §§ 201 et seq.; the regulations promulgated pursuant to such laws; and any similar federal, state, local and foreign laws and regulations, in each 
case as amended.

(aa)

Privacy Laws.  The Company and its subsidiaries are, and at all prior times were, in material compliance with all 
applicable data privacy and security laws and regulations, including without limitation, as applicable, the General Data Protection Regulation 2016/679 (the 
“GDPR”),  the  UK  Data  Protection  Act  2018  (“DPA”),  the  UK  General  Data  Protection  Regulation  as  defined  by  the  DPA  as  amended  by  the  Data 
Protection,  Privacy  and  Electronic  Communications  (Amendments  etc.)  (EU  Exit)  Regulations  2019  (together  with  the  DPA,  the  “UK  GDPR”),  and 
HIPAA,  as  amended  by  HITECH  (collectively,  “Privacy Laws”).    To  ensure  compliance  with  the  Privacy  Laws,  and  contractual  obligations,  industry 
standards,  and  any  other  legal  obligations  related  to  data  privacy  and  security,  the  Company  and  its  subsidiaries  have  in  place,  comply  with,  and  take 
appropriate steps reasonably designed to ensure compliance in all material respects with their policies and procedures relating to data privacy and security 
and the collection, storage, use, disclosure, handling, and analysis of Personal Data (the “Policies”) as applicable.  “Personal Data” means all personal, 
personally identifiable, sensitive, confidential or regulated data.  The Company and its subsidiaries since inception have at all times made all disclosures to 
users or customers required by applicable Privacy Laws, and has provided accurate notice of its Policies then in effect to its customers, employees, third 
party vendors and representatives as required by applicable Privacy Laws, except where the failure to do so would not, individually or in the aggregate, 
have  a  Material  Adverse  Effect.    None  of  such  disclosures  made  or  contained  in  any  of  the  Policies  have  been  inaccurate,  misleading,  deceptive  or  in 
violation of any Privacy Laws or Policies in any material respect.  The Company further certifies that,  neither it nor any subsidiary: (i) has received written 
notice of any actual or potential liability under or relating to, or actual or potential material violation of, any of the Privacy Laws, and has no knowledge of 
any event or condition that would reasonably be expected to result in any such notice; (ii) is currently conducting or paying for, in whole or in part, any 
investigation, remediation, or other corrective action pursuant to any Privacy Law; or (iii) is a party to any order, decree, or agreement that imposes any 
obligation  or  liability  under  any  Privacy  Law.    The  execution,  delivery  and  performance  of  this  Agreement  or  any  other  agreement  referred  to  in  this 
Agreement will not result in a breach of violation of any Privacy Laws or Policies.

10

 
(bb)

IT  Systems.    Except  as  would  not  have  a  Material  Adverse  Effect,  the  Company’s  and  its  subsidiaries’ 
information technology assets and equipment, computers, systems, networks, hardware, software, websites, applications, and databases (collectively, “IT 
Systems”)  are:  (i)  adequate  for,  and  operate  and  perform  in  all  material  respects  as  required  in  connection  with  the  operation  of  the  business  of  the 
Company  and  its  subsidiaries  as  currently  conducted;  and  (ii)  free  and  clear  of  all  bugs,  errors,  defects,  Trojan  horses,  time  bombs,  malware  and  other 
corruptants.  The Company and its subsidiaries have implemented and maintained appropriate controls, policies, procedures, and safeguards designed to 
maintain and protect their material confidential information and the integrity, continuous operation, redundancy and security of all IT Systems and data 
(including  all  Personal  Data)  used  in  connection  with  their  businesses,  reasonably  consistent  with  industry  standards  and  practices,  or  as  required  by 
applicable  regulatory  standard;  and  there  have  been  no  breaches,  violations,  outages  or  unauthorized  uses  of  or  accesses  to  the  IT  Systems  and  data 
(including all Personal Data) except for those that have been remedied without material cost or liability or the duty to notify any other person, nor any 
incidents under internal review or investigations relating to the same.  The Company and its subsidiaries have complied with and are presently in material 
compliance with all applicable laws or statutes and all judgments, orders, rules and regulations of any court or arbitrator or governmental or regulatory 
authority, and all industry guidelines, standards, policies and contractual obligations relating to the privacy and security of IT Systems and Personal Data 
and to the protection of such IT Systems and Personal Data from unauthorized use, access, misappropriation or modification.  Neither the Company nor its 
subsidiaries  has  been  notified  of,  and  each  of  them  has  no  knowledge  of  any  event  or  condition  that  could  result  in,  any  security  breach  or  incident, 
unauthorized  access  or  disclosure  or  other  compromise  to  its  IT  Systems  and  Personal  Data  except,  in  each  case,  for  any  such  matter  as  would  not 
reasonably be expected to have a Material Adverse Effect.  The Company and its subsidiaries have implemented backup and disaster recovery technology 
consistent with industry standards and practice.

Statistical  and  Market-Related  Data.    Any  statistical,  industry-related  and  market-related  data  included  in  the 
Registration Statement, Disclosure Package and the Prospectus are based on or derived from sources that the Company believes, after reasonable inquiry, to 
be reliable and accurate and, to the extent required, the Company has obtained the written consent to the use of such data from such sources; 

(cc)

(dd)

Compliance with ERISA.  Except, in each case, for any such matter as would not reasonably be expected to have 
a Material Adverse Effect, (i) each “employee benefit plan” (within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, 
as  amended,  including  the  regulations  and  published  interpretations  thereunder  (“ERISA”))  for  which  the  Company  or  any  member  of  its  “Controlled 
Group” (defined as any organization that is a member of a controlled group of corporations within the meaning of Section 414 of the Internal Revenue 
Code of 1986, as amended (the “Code”)) would have liability (each a “Plan”) is in compliance in all material respects with all applicable statutes, rules and 
regulations, including ERISA and the Code; (ii) with respect to each Plan subject to Title IV of ERISA (A) no “reportable event” (as defined in Section 
4043  of  ERISA)  has  occurred  for  which  the  Company  or  any  member  of  its  Controlled  Group  would  have  any  material  liability;  and  (B)  neither  the 
Company nor any member of its Controlled Group has incurred or expects to incur material liability under Title IV of ERISA (other than for contributions 
to the Plan or premiums payable to the Pension Benefit Guaranty Corporation, in each case in the ordinary course and without default); (iii) no Plan which 
is subject to Section 412 of the Code or Section 302 of ERISA has failed to satisfy the minimum funding standard within the meaning of such sections of 
the Code or ERISA; and (iv) each Plan that is intended to be qualified under Section 401(a) of the Code is so qualified and nothing has occurred, whether 
by action or by failure to act, which would cause the loss of such qualification.

11

 
(ee)

Environmental Laws.  Except in each case as otherwise disclosed in the Registration Statement, the Disclosure 
Package and the Prospectus and except in each case as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse 
Effect: (i) the Company and its subsidiaries have complied with all applicable federal, state, local, foreign and international laws (including the common 
law),  statutes,  rules,  regulations,  orders,  judgments,  decrees  or  other  legally  binding  requirements  of  any  court,  administrative  agency  or  other 
governmental authority relating to pollution or to the protection of the environment, natural resources or human health or safety, or to the manufacture, use, 
generation,  treatment,  storage,  disposal,  release  or  threatened  release  of  hazardous  or  toxic  substances,  pollutants,  contaminants  or  wastes,  or  the 
arrangement  for  such  activities  (“Environmental Laws”);  (ii)  the  Company  and  its  subsidiaries  have  obtained  and  complied  with  all  permits,  licenses, 
authorizations or other approvals required of them under Environmental Laws to conduct their respective businesses and are not subject to any action to 
revoke, terminate, cancel, limit or appeal any such permits, licenses, authorizations or approvals; and (iii) none of the Company or any of its subsidiaries 
has received written notice of or is otherwise subject to any pending or threatened claim, or has any cost or liability under Environmental Laws in respect 
of  its  past  or  present  business,  operations  (including  the  disposal  of  hazardous  substances  at  any  off-site  location),  facilities  or  real  property  (whether 
owned, leased or operated) or on account of any predecessor or any person whose liability under any Environmental Laws it has agreed to assume; and the 
Company is not aware of any facts or conditions that could reasonably be expected to give rise to any such  claim, cost or liability. Except in each case as 
otherwise disclosed in the Registration Statement, the Disclosure Package and the Prospectus, none of the Company or any of its subsidiaries is aware of 
any  facts  or  issues  relating  to  compliance  with  Environmental  Laws  that  would  reasonably  be  expected  to  have  a  material  effect  on  their  capital 
expenditures,  earnings  or  competitive  position  or  is  a  party  to  any  judicial  or  administrative  proceeding  (including  a  notice  of  violation)  under  any 
Environmental  Laws  to  which  a  governmental  authority  is  also  a  party  and  which  involves  potential  monetary  sanctions,  unless  it  could  reasonably  be 
expected that such proceeding will result in monetary sanctions of less than $300,000, or which is otherwise material, and no such proceeding has, to the 
Company’s knowledge, been threatened in writing or is known by the Company to be contemplated.

(ff)

Restrictions  on  Dividends.    Except  as  disclosed  in  the  Registration  Statement,  the  Disclosure  Package  and  the 
Prospectus, no subsidiary of the Company is prohibited or restricted, directly or indirectly, from paying dividends to the Company or any other subsidiary 
of the Company, or from making any other distribution with respect to such subsidiary’s equity securities or from repaying to the Company or any other 
subsidiary of the Company any amounts that may from time to time become due under any loans or advances to such subsidiary from the Company or any 
other subsidiary of the Company or from transferring any property or assets to the Company or to any other subsidiary of the Company.

(gg)

Nasdaq Listing. The Company’s Common Stock has been registered pursuant to Section 12(b) of the Exchange 
Act, its outstanding shares of Common Stock have been listed, and an Listing of Additional Shares for the Shares has been submitted to,  The Nasdaq Stock 
Market LLC (“Nasdaq”), and the Company has taken no action designed to, or likely to have the effect of, terminating the registration of the Common 
Stock under the Exchange Act or the listing of the Common Stock (including the Shares) on Nasdaq, nor has the Company received any notification that 
the Commission or Nasdaq is contemplating terminating such registration or listing.

 Certain Relationships and Related Party Transactions.  There are no material related-party transactions involving 
the  Company  or  its  subsidiaries  or  any  other  person  required  to  be  described  in  the  Registration  Statement,  the  Disclosure  Package  and  the  Prospectus 
which have not been described in such documents as required.

(hh)

or any of its subsidiaries exists or, to the knowledge of the Company, is threatened.

(ii)

Absence of Labor Dispute.  No material labor disturbance by or material dispute with employees of the Company 

No  Finder’s  Fee.    None  of  the  Company  or  any  of  its  subsidiaries  is  a  party  to  any  contract,  agreement  or 
understanding  with  any  person  (other  than  this  Agreement)  that  would  give  rise  to  a  valid  claim  against  the  Company  or  any  of  its  subsidiaries  or  any 
Manager for a brokerage commission, finder’s fee or like payment in connection with the offering and sale of the Shares.

(jj)

12

 
(kk)

Absence of Proceedings.  Other than as set forth in the Registration Statement, the Disclosure Package and the 
Prospectus, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries or, to the Company’s knowledge, any 
officer or director of the Company is a party or of which any property or assets of the Company or any of its subsidiaries or, to the Company’s knowledge, 
any officer or director of the Company is the subject which would individually or in the aggregate reasonably be expected to have a material adverse effect 
on the current or future financial position, stockholders’ equity or results of operations of the Company and its subsidiaries, taken as a whole (a “Material 
Adverse Effect”);  and,  to  the  best  of  the  Company’s  knowledge,  no  such  proceedings  are  threatened  or  contemplated  by  governmental  authorities  or 
threatened by others. 

Transfer Taxes.  There are no transfer taxes or other similar fees or charges under U.S. federal law or the laws of 
any state, or any political subdivision thereof, required to be paid in connection with the execution and delivery of this Agreement or the issuance or sale by 
the Company of the Shares.

(ll)

Investment Company Act.  The Company is not and, upon the issuance and sale of the Shares and the application 
of the proceeds thereof as described in the Registration Statement, the Disclosure Package and the Prospectus under the caption “Use of Proceeds,” will not 
be required to be registered as, an “investment company”, as such term is defined in the Investment Company Act of 1940, as amended.

(mm)

(nn)

Financial Statements; Non-GAAP Financial Measures.  The financial statements, together with related notes and 
schedules,  included  in  the  Registration  Statement,  the  Disclosure  Package  and  the  Prospectus,  comply  in  all  material  respects  with  the  applicable 
requirements of the Act and present fairly in all material respects the financial position and the results of operations and cash flows of the entities purported 
to be shown thereby, at the indicated dates and for the indicated periods. Such financial statements and related schedules have been prepared in accordance 
with  GAAP,  consistently  applied  throughout  the  periods  involved,  except  as  disclosed  therein,  and  all  adjustments  necessary  for  a  fair  presentation  of 
results for such periods have been made. The pro forma financial statements, if any, or data included in the Registration Statement or the Prospectus, if any, 
comply  with  the  applicable  requirements  of  the  Act  and  the  Exchange  Act,  and  the  assumptions  used  in  the  preparation  of  such  pro  forma  financial 
statements and data are reasonable, the pro forma adjustments used therein are appropriate to give effect to the transactions or circumstances described 
therein  and  the  pro  forma  adjustments  have  been  properly  applied  to  the  historical  amounts  in  the  compilation  of  those  statements  and  data;  the  other 
financial  and  statistical  data  set  forth  in  the  Registration  Statement,  the  Disclosure  Package  or  the  Prospectus  are  accurately  and  fairly  presented  and 
prepared on a basis consistent with the financial statements and books and records of the Company. Any non-GAAP financial measure (as such term is 
defined  by  the  rules  and  regulations  of  the  Commission),  contained  in  the  Registration  Statement,  the  Disclosure  Package  and  the  Prospectus  has  been 
derived  from  the  accounting  records  of  the  Company  or  its  predecessors  for  accounting  purposes,  fairly  presents  in  all  material  respect  the  information 
purported to be shown thereby and complies in all material respects with Regulation G of the Exchange Act, and Item 10(e) of Regulation S-K under the 
Act, to the extent applicable. The Company and its subsidiaries do not have any material liabilities or obligations, direct or contingent, not disclosed in 
Registration  Statement,  the  Disclosure  Package  and  the  Prospectus.  There  are  no  financial  statements  (historical  or  pro  forma)  that  are  required  to  be 
included in the Registration Statement, the Disclosure Package or the Prospectus that are not included as required.

Independent  Accountants.    The  accountants  who  certified  the  financial  statements  and  supporting  schedules 
included in the Registration Statement, the Disclosure Package and the Prospectus are independent public accountants as required by the Act, the Exchange 
Act  and the Public Company Accounting Oversight Board.

(oo)

(pp)

Compliance with the Sarbanes-Oxley Act.  There is and has been no failure on the part of the Company or any of 
the Company’s directors or officers, in their capacities as such, to comply in all material respects with any applicable provision of the Sarbanes-Oxley Act 
of  2002  and  the  rules  and  regulations  promulgated  in  connection  therewith,  including  Section  402  related  to  loans  and  Sections  302  and  906  related  to 
certifications.

13

 
(qq)

Accounting Controls.  The Company maintains a system of internal control over financial reporting (as such term
is defined in Rule 13a-15(f) under the Exchange Act) that complies with the requirements of the Exchange Act and has been designed by the Company’s 
principal executive officer and principal financial officer, or under their supervision, to provide reasonable assurance regarding the reliability of financial 
reporting  and  the  preparation  of  financial  statements  for  external  purposes  in  accordance  with  GAAP.  The  Company  is  not  aware  of  any  material 
weaknesses in its internal control over financial reporting. Since the date of the latest audited financial statements included or incorporated by reference in 
the Disclosure Package, Registration Statement and the Prospectus, there has been no change in the Company’s internal control over financial reporting that 
has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

(rr)

Disclosure Controls. The Company maintains disclosure controls and procedures (as such term is defined in Rule 
13a-15(e) under the Exchange Act) that comply with the requirements of the Exchange Act; such disclosure controls and procedures have been designed to 
ensure that material information relating to the Company and its subsidiaries is made known to the Company’s principal executive officer and principal
financial officer by others within those entities; and such disclosure controls and procedures are effective.

(ss)

Foreign  Corrupt  Practices  Act.    None  of  the  Company,  any  of  its  subsidiaries  or,  to  the  knowledge  of  the 
Company, any director, officer, employee, agent, affiliate or other person associated with or acting on behalf of the Company or any of its subsidiaries has 
(A) used any funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (B) made or taken an act in 
furtherance of an offer, promise or authorization of any direct or indirect unlawful payment or benefit to any foreign or domestic government or regulatory 
official or employee, including of any government-owned or controlled entity or of a public international organization, or any person acting in an official 
capacity for or on behalf of any of the foregoing, or any political party or party official or candidate for political office; (C) violated or is in violation of any
provision  of  the  Foreign  Corrupt  Practices  Act  of  1977,  as  amended,  or  any  applicable  law  or  regulation  implementing  the  OECD  Convention  on 
Combating Bribery of Foreign Public Officials in International Business Transactions, or committed an offence under the Bribery Act 2010 of the United 
Kingdom,  or  any  other  applicable  anti-bribery  or  anti-corruption  laws;  or  (D)  made,  offered,  agreed,  requested  or  taken  an  act  in  furtherance  of  any 
unlawful  bribe  or  other  unlawful  benefit,  including,  without  limitation,  any  rebate,  payoff,  influence  payment,  kickback  or  other  unlawful  or  improper 
payment or benefit.  The Company and its subsidiaries have instituted, and maintain and enforce, policies and procedures designed to promote and ensure 
compliance with all applicable anti-bribery and anti-corruption laws.

(tt)

Money Laundering Laws.  The operations of the Company and its subsidiaries are and have been conducted at all 
times  in  compliance  with  applicable  financial  recordkeeping  and  reporting  requirements,  including  those  of  the  Currency  and  Foreign  Transactions 
Reporting Act of 1970, as amended, the applicable money laundering statutes of all jurisdictions where the Company or any of its subsidiaries conducts 
business,  the  rules  and  regulations  thereunder  and  any  related  or  similar  rules,  regulations  or  guidelines  issued,  administered  or  enforced  by  any 
governmental  or  regulatory  agency  (collectively,  the  “Anti-Money  Laundering  Laws”)  and  no  action,  suit  or  proceeding  by  or  before  any  court  or 
governmental or regulatory agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Anti-Money 
Laundering Laws is pending or, to the knowledge of the Company, threatened.

14

 
(uu)

OFAC.  None of the Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, 
employee,  agent  or  affiliate  of  the  Company  is  currently  the  subject  or  the  target  of  any  sanctions  administered  or  enforced  by  the  U.S.  Government, 
including, without limitation, the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”), or the U.S. Department of State and 
including, without limitation, the designation as a “specially designated national” or “blocked person”, the United Nations Security Council (“UNSC”), the 
European  Union,  His  Majesty’s  Treasury  (“HMT”),  or  other  relevant  sanctions  authority  (collectively,  “Sanctions”),  nor  is  the  Company  or  any  of  its 
subsidiaries located, organized or resident in a country or territory that is the subject or the target of Sanctions (each, a “Sanctioned Country”); and the 
Company  will  not  directly  or  indirectly  use  the  proceeds  of  the  offering  of  the  Shares  hereunder,  or  lend,  contribute  or  otherwise  make  available  such 
proceeds to any subsidiary, joint venture partner or other person or entity (i) to fund or facilitate any activities of or business with any person that, at the 
time of such funding or facilitation, is the subject or the target of Sanctions, (ii) to fund or facilitate any activities of or business in any Sanctioned Country 
or  (iii)  in  any  other  manner  that  will  result  in  a  violation  by  any  person  (including  any  person  participating  in  the  transaction,  whether  as  sales  agent, 
underwriter, advisor, investor or otherwise) of Sanctions. For the past five years, none of the Company or any of its subsidiaries has knowingly engaged in 
and are not now knowingly engaged in any dealings or transactions with any person that at the time of the dealing or transaction is or was the subject or the 
target of Sanctions or with any Sanctioned Country.

(vv)

Insurance.  Each of the Company and its subsidiaries carry, or are covered by, insurance, from financially sound 
and reputable insurers, in such amounts and covering such risks as are generally deemed reasonably adequate for the conduct of their respective businesses 
and  the  value  of  their  respective  properties  and  as  is  generally  deemed  adequate  and  customary  for  companies  engaged  in  similar  businesses;  and  the 
Company has no reason to believe that it or any of its subsidiaries will not be able to renew their existing insurance coverage as and when such coverage 
expires or to obtain similar coverage from similar insurers as may be necessary to continue their respective businesses at a cost that would not, individually 
or in the aggregate, reasonably be expected to have a Material Adverse Effect.

15

 
(ww)

  Ownership  Structure.  (i)  the  ownership  structure  (the  “Ownership  Structure”)  set  forth  in  Annex  II  of  this 
Agreement  complies  with  all  applicable  laws,  rules  and  regulations,  including  those  of  the  People’s  Republic  of  China  (the  “PRC”),  Hong  Kong,  the 
Cayman Islands and the United States, does not violate, breach, contravene or otherwise conflict with any applicable laws, rules and regulations and has not 
been  challenged  by  any  governmental  agency;  (ii)  there  are  no  legal,  arbitral,  governmental  or  other  proceedings  (including,  without  limitation, 
governmental  investigations  or  inquiries)  pending  before  or  threatened  or  contemplated  by  any  governmental  agency  in  respect  of  such  Ownership 
Structure;  (iii)  all  consents,  approvals,  authorizations,  orders,  registrations,  clearances  or  qualifications  of  or  with  any  governmental  agency 
(“Governmental Authorizations”) in connection with the Ownership Structure have been duly granted, made or unconditionally obtained in writing and 
are in full force and effect and no such Governmental Authorization has been withdrawn or revoked or is subject to any condition precedent which has not 
been  fulfilled  or  performed;  (iv)  in  connection  with  the  transactions  contemplated  by  this  Agreement,  the  Ownership  Structure  will  comply  with  all 
applicable laws, rules and regulations; (v) all of the Company’s subsidiaries incorporated or formed in the PRC and Hong Kong have taken all reasonable 
steps to comply with any applicable rules and regulations of the PRC State Administration of Foreign Exchange (the “SAFE Rules and Regulations”), 
including, without limitation, requesting each shareholder and option holder that is, or is directly or indirectly owned or controlled by, a PRC resident or 
citizen to complete any registration and other procedures required under the SAFE Rules and Regulations; and (vi) (A) dividends and other distributions 
declared with respect to after-tax retained earnings on the share capital of any subsidiary of the Company that is or will be incorporated in the PRC will be 
permitted  under  the  current  laws  and  regulations  of  the  PRC  to  be  freely  transferred  out  of  the  PRC  and  may  be  paid  in  U.S.  dollars,  subject  to  the 
successful completion of PRC formalities required for such remittance, and all such dividends and other distributions will not be subject to withholding or 
other taxes under the laws and regulations of the PRC and are otherwise free and clear of any other tax, withholding or deduction in the PRC, and without 
the  necessity  of  obtaining  any  Governmental  Authorizations;  (B)  dividends  and  other  distributions  declared  and  payable  on  the  share  capital  of  any 
subsidiary of the Company that is or will be incorporated in Hong Kong will be permitted under the current laws and regulations of Hong Kong and the 
PRC  to  be  paid  to  the  Company,  and  all  such  dividends  and  other  distributions  will  not  be  subject  to  withholding  or  other  taxes  under  the  laws  and 
regulations of Hong Kong and the PRC and are otherwise free and clear of any other tax, withholding or deduction in Hong Kong and the PRC and without 
the necessity of obtaining any Governmental Authorizations of or with any governmental agency in Hong Kong or the PRC and (C) dividends and other 
distributions  declared  and  payable  on  the  share  capital  of  any  subsidiary  of  the  Company  that  is  or  will  be  incorporated  in  the  Cayman  Islands  will  be 
permitted under the current laws and regulations of the Cayman Islands to be paid to the Company, and all such dividends and other distributions will not 
be subject to withholding or other taxes under the laws and regulations of the Cayman Islands and are otherwise free and clear of any other tax, withholding 
or deduction in the Cayman Islands and without the necessity of obtaining any Governmental Authorizations of or with any governmental agency in the 
Cayman Islands;

(xx)

Stabilization.  Neither the Company nor, to the Company’s knowledge, any of its affiliates, has taken or may take, 
directly  or  indirectly,  any  action  designed  to  cause  or  result  in,  or  which  has  constituted  or  which  might  reasonably  be  expected  to  constitute,  the 
stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Shares in violation of Regulation M of the 
Exchange Act.

FINRA  Affiliation.    To  the  knowledge  of  the  Company,  there  are  no  affiliations  or  associations  between  any 
member of FINRA and any of the officers or directors of the Company or the holders of 5% or greater of the Common Stock, except as described in the 
Registration Statement, the Disclosure Package and the Prospectus to the extent required to be so described.

(yy)

(zz)

Accuracy of Exhibits.  There are no contracts or other documents that are required by the Act to be described in 
the Prospectus or filed as exhibits to the Registration Statement, or that are required by the Exchange Act to be filed as exhibits to a document incorporated 
by reference into the Prospectus, that have not been so described in the Prospectus or filed as exhibits to the Registration Statement or such incorporated 
document.

XBRL.    The  interactive  data  in  the  eXtensible  Business  Reporting  Language  included  as  an  exhibit  to  the 
Registration Statement fairly presents the information called for in all material respects and has been prepared in accordance with the Commission’s rules 
and guidelines applicable thereto.

(aaa)

16

 
(bbb)

WKSI.    (i)  At  the  original  effectiveness  of  the  Registration  Statement,  (ii)  at  the  time  of  the  most  recent 
amendment  thereto  for  the  purposes  of  complying  with  Section  10(a)(3)  of  the  Act  (whether  such  amendment  was  by  post-effective  amendment  or 
incorporated report filed pursuant to Section 13 or 15(d) of the Exchange Act or in the form of a prospectus), (iii) at the time the Company or any person 
acting on its behalf (within the meaning, for this clause only, of Rule 163(c)) made any offer relating to the Shares in reliance on the exemption of Rule 
163, and (iv) as of the Applicable Time, the Company was and is a “well-known seasoned issuer” (as defined in Rule 405 of the Act).

Any certificate signed by any officer of the Company or any of its subsidiaries and delivered to the Managers or to counsel for the Managers in 
connection  with  this  Agreement  or  any  Terms  Agreement  shall  be  deemed  a  representation  and  warranty  by  the  Company  or  such  subsidiary  of  the 
Company, as applicable, to each Manager as to the matters set forth therein.

The Company acknowledges that the Managers and, for purposes of the opinions to be delivered pursuant to Section 4 hereof, counsel for the 

Company and counsel for the Managers, will rely upon the accuracy and truthfulness of the foregoing representations and hereby consents to such reliance.

3.

Sale and Delivery of Shares. On the basis of the representations, warranties and agreements herein contained, but subject to the terms 
and conditions herein set forth, the Company and the Managers agree that the Company may from time to time seek to sell Shares through a Designated 
Manager, acting as sales agent, or directly to any of the Managers acting as principal, as follows:

The Company may submit to a Designated Manager its orders (including any price, time or size limits or other 
customary parameters or conditions) to sell Shares on any Trading Day (as defined herein) in a form and manner as mutually agreed to by the Company 
and such Designated Manager. As used herein, “Trading Day” shall mean any trading day on Nasdaq.

(a)

(b)

Subject to the terms and conditions hereof, each Manager, at any time it is a Designated Manager, shall use its 
reasonable efforts to execute any Company order submitted to it hereunder to sell Shares and with respect to which such Designated Manager has agreed to 
act as sales agent. The Company acknowledges and agrees that (i) there can be no assurance that a Designated Manager will be successful in selling the 
Shares, (ii) a Designated Manager will incur no liability or obligation to the Company or any other person or entity if it does not sell Shares for any reason 
other than a failure by a Designated Manager to use its reasonable efforts consistent with its normal trading and sales practices and applicable law and 
regulations to sell such Shares as required under this Agreement and (iii) no Manager shall be under any obligation to purchase Shares on a principal basis 
pursuant to this Agreement, except as otherwise specifically agreed by Manager and the Company. The Designated Manager may make sales pursuant to 
each order by any method permitted by law, including without limitation (i) by means of ordinary brokers’ transactions (whether or not solicited), (ii) to or 
through a market maker, (iii) directly on or through any national securities exchange or facility thereof, a trading facility of a national securities association, 
an  alternative  trading  system,  or  any  other  market  venue,  (iv)  in  the  over-the-counter  market,  (v)  in  privately  negotiated  transactions,  or  (vi)  through  a 
combination of any such methods. 

(c)

The Company shall not authorize the issuance and sale of, and a Designated Manager shall not sell as sales agent, 
any Share at a price lower than the minimum price therefor designated from time to time by the Company and notified to a Designated Manager in writing. 
In addition, the Company or a Designated Manager may upon notice to the other party hereto by telephone (confirmed promptly by email or facsimile), 
suspend  an  offering  of  the  Shares  with  respect  to  which  that  Designated  Manager  is  acting  as  sales  agent;  provided, however,  that  such  suspension  or 
termination shall not affect or impair the parties’ respective obligations with respect to the Shares sold hereunder prior to the giving of such notice.

17

 
(d)

The  compensation  to  a  Designated  Manager  for  sales  of  the  Shares  with  respect  to  which  such  Designated 
Manager acts as sales agent hereunder shall be up to 3% of the gross offering proceeds of the Shares sold pursuant to this Agreement as mutually agreed to 
in  writing  by  such  Designated  Manager  and  the  Company.    The  foregoing  rate  of  compensation  shall  not  apply  when  a  Manager,  acting  as  principal, 
purchases Shares from the Company pursuant to a Terms Agreement. Any compensation or commission due and payable to any Managers hereunder with 
respect to any sale of Shares shall be paid by the Company to such Managers concurrently with the settlement for sales of the Shares by deduction from the 
proceeds  from  sales  of  the  Shares  payable  to  the  Company.  The  remaining  proceeds,  after  further  deduction  for  any  transaction  fees  imposed  by  any 
governmental  or  self-regulatory  organization  in  respect  of  such  sales  shall  constitute  the  net  proceeds  to  the  Company  for  such  Shares  (the  “Net 
Proceeds”).

(e)

Settlement for sales of the Shares pursuant to this Agreement will occur on the second Trading Day following the 
date on which such sales are made (each such day, a “Settlement Date”). On each Settlement Date, the Shares sold through a Designated Manager for 
settlement on such date shall be issued and delivered by the Company to such Designated Manager against payment of the Net Proceeds from the sale of 
such Shares. Settlement for all such Shares shall be effected by free delivery of the Shares, in definitive form, by the Company or its transfer agent to such 
Designated Manager’s or its designee’s account (provided such Designated Manager shall have given the Company written notice of such designee prior to 
the Settlement Date) at The Depository Trust Company through its Deposit and Withdrawal at Custodian System or by such other means of delivery as may 
be  mutually  agreed  upon  by  the  parties  hereto,  in  return  for  payments  in  same  day  funds  delivered  to  the  account  designated  by  the  Company.  If  the 
Company, or its transfer agent (if applicable) shall default on its obligation to deliver the Shares on any Settlement Date, the Company shall (i) hold each
applicable Designated Manager harmless against any loss, claim, damage, or expense (including reasonable legal fees and expenses), as incurred, arising 
out of or in connection with such default by the Company and (ii) pay each such Designated Manager any commission, discount or other compensation to 
which it would otherwise be entitled absent such default.

(f)

If acting as sales agent hereunder, the Designated Manager shall provide written confirmation (which may be by 
facsimile or email) to the Company following the close of trading on the Nasdaq each day in which the Shares are sold under this Agreement setting forth 
(i) the amount of the Shares sold on such day and the gross offering proceeds received from such sale and (ii) the commission payable by the Company to 
such Designated Manager with respect to such sales.

(g)

At each Applicable Time, Settlement Date, Representation Date (as defined in Section 4(k)) and Filing Date (as 
defined  in  Section  4(r)),  the  Company  shall  be  deemed  to  have  affirmed  each  representation  and  warranty  contained  in  this  Agreement  as  if  such 
representation and warranty were made as of such date, modified as necessary to relate to the Registration Statement and the Prospectus as amended as of 
such date. Any obligation of a Designated Manager to use its reasonable efforts to sell the Shares on behalf of the Company as sales agent shall be subject 
to the continuing accuracy of the representations and warranties of the Company herein (and the completion of any diligence to verify such accuracy by 
such Designated Manager), to the performance by the Company of its obligations hereunder and to the continuing satisfaction of the additional conditions 
specified in Section 6 of this Agreement.

(h)

Subject to such further limitations on offers and sales of Shares or delivery of instructions to offer and sell Shares 
as are set forth herein and as may be mutually agreed upon by the Company and a Designated Manager, the Company shall not request the sale of any 
Shares that would be sold, and no Designated Manager shall be obligated to sell, (i) during any period in which the Company’s insider trading policy, as it 
exists on the date of this Agreement, would prohibit the purchase or sale of any Shares by any of its officers or directors, (ii) any time during the period 
commencing on the tenth business day prior to the time Company shall issue a press release containing, or shall otherwise publicly announce, its earnings, 
revenues  or  other  results  of  operations  (each,  an  “Earnings  Announcement”)  through  and  including  the  time  that  is  24  hours  after  the  time  that  the 
Company files (a “Filing Time”) a Quarterly Report on Form 10-Q or an Annual Report on Form 10-K that includes consolidated financial statements as 
of and for the same period or periods, as the case may be, covered by such Earnings Announcement, or (iii) during any other period in which the Company 
is, or could be deemed to be, in possession of material non-public information.

18

 
(i)

If the Company wishes to issue and sell the Shares pursuant to this Agreement directly to any of the Managers 
acting as principal (each, a “Placement”), it will notify the Manager or Managers of the proposed terms of such Placement. If such Manager or Managers, 
acting as principal, wishes to accept such proposed terms (which a Manager may decline to do for any reason in its sole discretion) or, wishes to accept 
amended terms proposed by the Company after further discussion, such Manager or Managers and the Company will enter into a Terms Agreement setting 
forth the terms of such Placement. The terms set forth in a Terms Agreement will not be binding on the Company or such Manager or Managers unless and 
until the Company and such Manager or Managers have each executed such Terms Agreement accepting all of the terms of such Terms Agreement. In the 
event of a conflict between the terms of this Agreement and the terms of a Terms Agreement, the terms of such Terms Agreement will control.

(j)

Each  Placement  shall  be  made  in  accordance  with  the  terms  of  this  Agreement  and,  if  applicable,  a  Terms 
Agreement, which will provide for the sale of such Shares to, and the purchase thereof by, such Manager. A Terms Agreement may also specify certain 
provisions relating to the reoffering of such Shares by a Manager. The commitment of a Manager to purchase the Shares pursuant to any Terms Agreement 
shall be deemed to have been made on the basis of the representations and warranties of the Company herein contained and shall be subject to the terms 
and conditions herein set forth. Each Terms Agreement shall specify the number of the Shares to be purchased by a Manager pursuant thereto, the price to 
be  paid  to  the  Company  for  such  Shares,  any  provisions  relating  to  rights  of,  and  default  by,  underwriters  acting  together  with  such  Manager  in  the 
reoffering of the Shares, and the time and date (each such time and date being referred to herein as a “Time of Delivery”) and place of delivery of and 
payment for such Shares. 

(k)

Under no circumstances shall the number and aggregate amount of the Shares sold pursuant to this Agreement 
and any Terms Agreement exceed (i) the aggregate amount set forth in Section 1, (ii) the number of shares of the Common Stock available for issuance 
under the currently effective Registration Statement or (iii) the number and aggregate amount of the Shares authorized from time to time to be issued and 
sold under this Agreement by the board of directors of the Company (the “Board”), or a duly authorized committee thereof, and notified to the Managers in 
writing.

19

 
4.

Agreements. The Company agrees with each of the Managers that:

(a)

During any period when the delivery of a prospectus relating to the Shares is required (including in circumstances 
where such requirement may be satisfied pursuant to Rule 172 or any similar rule) to be delivered under the Act in connection with the offering or sale of 
the Shares, the Company will not file any amendment of the Registration Statement or supplement in connection with the offering and sale of the Shares 
(including the Prospectus or any Interim Prospectus Supplement) to the Base Prospectus, the Disclosure Package or the Prospectus, whether pursuant to the 
Act, the Exchange Act or otherwise, unless (i) the Company has furnished to the Managers a copy of such amendment or supplement (including, for the 
avoidance  of  doubt,  reports  or  other  information  to  be  filed  by  the  Company  under  the  Exchange  Act  that  would  be  incorporated  by  reference  into  the 
Registration Statement and the Prospectus) for its review a reasonable period of time prior to filing (or, in the case of Current Reports on Form 8-K, has 
used its commercially reasonable efforts to so furnish copies to the Managers prior to filing), and (ii) except for reports or other information required to be 
filed by the Company under the Exchange Act, the Company will not file any such proposed amendment or supplement to which the Managers reasonably 
object. The Company prepared the Prospectus, in a form approved by the Existing Manager, and filed such Prospectus, as amended at the Initial Execution 
Time, with the Commission pursuant to the applicable paragraph of Rule 424(b) promptly after the Initial Execution Time (but in any event within the time 
period described thereby). The Company will cause any supplement to the Prospectus to be prepared, in a form approved by the Managers, and will file 
such supplement with the Commission pursuant to the applicable paragraph of Rule 424(b) within the time period prescribed thereby and will notify the 
Managers of such timely filing, including for the avoidance of doubt, the supplement to the Prospectus filed as of the date hereof. The Company, subject to 
this Section 4(a) and Section 4(c), will comply with the requirements of Rule 430B. During any period when the delivery of a prospectus relating to the
Shares is required (including in circumstances where such requirement may be satisfied pursuant to Rule 172 or any similar rule) to be delivered under the 
Act in connection with the offering or sale of the Shares, the Company will promptly advise the Managers (A) when the Prospectus, and any supplement 
thereto, shall have been filed (if required) with the Commission pursuant to Rule 424(b), (B) when, during any period when the delivery of a prospectus 
(whether  physically  or  through  compliance  with  Rule  172  or  any  similar  rule)  is  required  under  the  Act  in  connection  with  the  offering  or  sale  of  the 
Shares, any amendment to the Registration Statement or any new registration statement relating to the Shares shall have been filed or become effective 
(other  than  a  prospectus  supplement  relating  solely  to  the  offering  of  securities  other  than  the  Shares),  (C)  of  the  receipt  of  any  comments  from  the 
Commission, (D) of any request by the Commission or its staff for any amendment of the Registration Statement, or for any supplement to the Prospectus 
or  for  any  additional  information  related  to  the  Registration  Statement  or  the  Prospectus,  (E)  of  the  issuance  by  the  Commission  of  any  stop  order 
suspending the effectiveness of the Registration Statement or of any notice objecting to its use or any the issuance of any order preventing or suspending 
the use of the Prospectus or any amendment or supplement thereto, or the institution or threatening of any proceeding for any of such purposes or pursuant 
to Section 8A of the Act or (F) of the receipt by the Company of any notification with respect to the suspension of the qualification of the Shares for sale in 
any  jurisdiction  or  the  institution  or  threatening  of  any  proceeding  for  such  purpose.  The  Company  will  use  its  reasonable  best  efforts  to  prevent  the 
issuance of any such stop order or the occurrence of any such suspension or objection to the use of the Registration Statement and, upon such issuance, 
occurrence or notice of objection, to obtain at the earliest possible moment the withdrawal of such stop order or relief from such occurrence or objection, 
including, if necessary, by filing an amendment to the Registration Statement or a new registration statement and using its reasonable best efforts to have 
such amendment or new registration statement declared effective as soon as practicable.

(b)

If, at any time on or after an Applicable Time but prior to the related Settlement Date or Time of Delivery, any 
event occurs as a result of which the Disclosure Package would include any untrue statement of a material fact or omit to state any material fact necessary 
to  make  the  statements  therein  in  the  light  of  the  circumstances  under  which  they  were  made  or  the  circumstances  then  prevailing  not  misleading,  the 
Company will (i) notify promptly the relevant Manager(s) so that any use of the Disclosure Package may cease until it is amended or supplemented; (ii) 
amend  or  supplement  the  Disclosure  Package  to  correct  such  statement  or  omission;  and  (iii)  supply  any  amendment  or  supplement  to  the  relevant 
Manager(s) in such quantities as the Manager(s) may reasonably request.

20

 
(c)

During any period when the delivery of a prospectus relating to the Shares is required (including in circumstances 
where such requirement may be satisfied pursuant to Rule 172 or any similar rule) to be delivered under the Act, if any event occurs as a result of which the 
Prospectus as then supplemented would include any untrue statement of a material fact or omit to state any material fact necessary to make the statements 
therein in the light of the circumstances under which they were made at such time not misleading, or if it shall be necessary to amend the Registration 
Statement, file a new registration statement or supplement the Prospectus to comply with the Act or the Exchange Act or the respective rules thereunder, 
including in connection with use or delivery of the Prospectus, the Company promptly will (i) notify the Managers of any such event, (ii) prepare and file 
with the Commission, subject to the first sentence of paragraph (a) of this Section 4, an amendment or supplement or new registration statement which will 
correct such statement or omission or effect such compliance, (iii) use its reasonable best efforts to have any amendment to the Registration Statement or 
new  registration  statement  declared  effective  as  soon  as  practicable  in  order  to  avoid  any  disruption  in  use  of  the  Prospectus  and  (iv)  supply  any 
supplemented Prospectus to the Managers in such quantities as the Managers may reasonably request.

earnings statement or statements of the Company and its subsidiaries which will satisfy the provisions of Section 11(a) of the Act and Rule 158.

(d)

As soon as practicable, the Company will make generally available to its security holders and to the Managers an 

(e)

The Company will deliver to the Managers and counsel for the Managers, without charge, as such Managers or 
counsel for the Managers may reasonably request, signed copies of the Registration Statement as originally filed and of each amendment thereto (including 
exhibits filed therewith or incorporated by reference therein and documents incorporated or deemed to be incorporated by reference therein) and signed 
copies of all consents and certificates of experts. The Registration Statement and each amendment thereto furnished to the Managers will be identical to any 
electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T. The Company 
will pay the expenses of printing or other production of all documents relating to the offering.

(f)

The Company will deliver to the Managers and counsel for the Managers, without charge, for so long as delivery 
of a prospectus by the Managers or dealer may be required by the Act (including in circumstances where such requirement may be satisfied pursuant to 
Rule 172 or any similar rule), as many copies of the Prospectus and each Issuer Free Writing Prospectus and any supplement thereto as the Managers may 
reasonably request. The Prospectus and any Issuer Free Writing Prospectus and any amendments or supplements thereto furnished to the Managers will be 
identical to any electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T. 
The Company will pay the expenses of printing or other production of all documents relating to the offering.

(g)

The  Company  will  arrange,  if  necessary,  for  the  qualification  of  the  Shares  for  sale  under  the  laws  of  such 
jurisdictions as the Managers may designate and will maintain such qualifications in effect so long as required for the distribution of the Shares; provided 
that in no event shall the Company be obligated to qualify to do business in any jurisdiction where it is not now so qualified or to take any action that 
would subject it to service of process in suits, other than those arising out of the offering or sale of the Shares, in any jurisdiction where it is not now so 
subject or where it would be subject to taxation as a foreign business.

(h)

The Company agrees that, unless it has or shall have obtained the prior written consent of the relevant Designated 
Manager, and each Manager agrees with the Company that, unless it has or shall have obtained the prior written consent of the Company, as the case may 
be,  it  has  not  made  and  will  not  make  any  offer  relating  to  the  Shares  that  would  constitute  an  Issuer  Free  Writing  Prospectus  or  that  would  otherwise 
constitute a “free writing prospectus” (as defined in Rule 405) required to be filed by the Company with the Commission or retained by the Company under 
Rule  433;  provided  that  the  prior  written  consent  of  the  parties  hereto  shall  be  deemed  to  have  been  given  in  respect  of  the  Free  Writing  Prospectuses 
included in Schedule I hereto. Any such free writing prospectus consented to by the Managers or the Company is hereinafter referred to as a “Permitted 
Free Writing Prospectus.” The Company agrees that (i) it has treated and will treat, as the case may be, each Permitted Free Writing Prospectus as an 
Issuer Free Writing Prospectus and (ii) it has complied and will comply, as the case may be, with the requirements of Rules 164 and 433 applicable to any 
Permitted Free Writing Prospectus, including in respect of timely filing with the Commission, legending and record keeping.

21

 
(i)

The Company will not (i) take, directly or indirectly, any action designed to or that might reasonably be expected
to cause or result in stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Shares or (ii) sell, bid for, 
purchase  or  pay  any  person  (other  than  as  contemplated  by  this  Agreement  or  any  Terms  Agreement)  any  compensation  for  soliciting  purchases  of  the 
Shares.

The Company will, at any time during the term of this Agreement, as supplemented from time to time, advise the 
Managers  promptly  after  it  shall  have  received  notice  or  obtain  knowledge  thereof,  of  any  information  or  fact  that  would  materially  alter  or  affect  any 
opinion, certificate, letter and other document provided to the Managers pursuant to Section 6 herein.

(j)

(k)

Upon  commencement  of  the  offering  of  the  Shares  under  this  Agreement  (if  requested  by  any  Manager)  (and 
upon the recommencement of the offering of the Shares under this Agreement following the termination of a suspension of sales hereunder), and each time 
that (i) the Registration Statement or the Prospectus shall be amended or supplemented (other than (A) an Interim Prospectus Supplement filed pursuant to 
Rule 424(b) pursuant to Section 4(r) of this Agreement, (B) a prospectus supplement relating solely to the offering or resale of securities other than the 
Shares or (C) the filing with the Commission of any report under the Exchange Act except such reports referred to in Section 4(k)(ii)), (ii) there is filed 
with  the  Commission  any  annual  report  on  Form  10-K  or  quarterly  report  on  Form  10-Q,  or  any  other  document  that  contains  financial  statements  or 
financial  information  that  is  incorporated  by  reference  into  the  Prospectus,  or  any  amendment  thereto,  or  (iii)  the  Shares  are  delivered  to  one  or  more 
Managers  as  principal  at  the  Time  of  Delivery  pursuant  to  a  Terms  Agreement  (the  date  of  such  commencement  (in  the  case  that  the  above-mentioned 
request  is  made  by  any  Manager),  the  date  of  each  such  recommencement  and  the  date  of  each  such  event  referred  to  in  (i),  (ii)  and  (iii)  above,  a 
“Representation  Date”),  the  Company  shall  furnish  or  cause  to  be  furnished  to  the  Managers  forthwith  a  certificate  dated  and  delivered  on  such 
Representation Date, as the case may be, in form satisfactory to the Managers to the effect that the statements contained in the certificate referred to in 
Section 6(d) of this Agreement which were last furnished to the Managers are true and correct at the time of such Representation Date, as though made at 
and as of such time (except that such statements shall be deemed to relate to the Registration Statement and the Prospectus as amended and supplemented 
to such time) or, in lieu of such certificate, a certificate of the same tenor as the certificate referred to in said Section 6(d), modified as necessary to relate to 
the  Registration  Statement,  the  Disclosure  Package  and  the  Prospectus  as  amended  and  supplemented  to  the  time  of  delivery  of  such  certificate.  The 
requirement  to  provide  a  certificate  under  this  Section  4(k)  shall  be  waived  for  any  Representation  Date  occurring  at  a  time  when  no  Company  order 
submitted to any Manager hereunder to sell Shares is pending or a suspension of sales hereunder is in effect, which waiver shall continue until the earlier to 
occur  of  the  date  the  Company  submits  an  order  to  any  Manager  to  sell  Shares  hereunder  (which  for  such  calendar  quarter  shall  be  considered  a 
Representation  Date)  and  the  next  occurring  Representation  Date.  Notwithstanding  the  foregoing,  if  the  Company  subsequently  decides  to  sell  Shares 
following a Representation Date when the Company relied upon the foregoing waiver and therefore did not provide the Managers with a certificate under 
this Section 4(k), then before the Company submits an order for the sale of Shares or any Manager sells any Shares pursuant to such order, the Company 
shall provide the Manager with a certificate in conformity with this Section 4(k) dated as of the date that the order for the sale of Shares is submitted to any 
Manager  hereunder,  provided that  for  the  avoidance  of  doubt,  such  date  the  certificate  is  delivered  pursuant  to  the  foregoing  sentence  shall  also  be  a 
Representation Date.    

(l)

At  the  Execution  Time,  and  at  each  Representation  Date  with  respect  to  which  the  Company  is  obligated  to 
deliver  a  certificate  pursuant  to  Section  4(k)  for  which  no  waiver  is  applicable,  the  Company  shall  furnish  or  cause  to  be  furnished  forthwith  to  the 
Managers  and  to  counsel  to  the  Managers  (i)  a  written  opinion  of  Cooley  LLP,  counsel  to  the  Company  (“Company    Counsel”),  or  other  counsel 
reasonably satisfactory to the Managers and (ii) a written opinion of the Company’s Chief Intellectual Property Officer (“Intellectual Property Counsel”), 
each dated and delivered on such Representation Date and in form and substance satisfactory to the Managers, of the same tenor as the opinion referred to 
in Section 6(b) of this Agreement, but modified as necessary to relate to the Registration Statement, the Disclosure Package and the Prospectus as amended 
and supplemented to the time of delivery of such opinion. 

22

 
(m)

At  the  Execution  Time,  and  at  each  Representation  Date  with  respect  to  which  the  Company  is  obligated  to 
deliver a certificate pursuant to Section 4(k) for which no waiver is applicable, Latham & Watkins LLP, counsel to the Managers, shall deliver a written 
opinion and disclosure letter, dated and delivered on such Representation Date, in form and substance satisfactory to the Managers, of the same tenor as the 
opinions and disclosure letter referred to in Section 6(c) of this Agreement but modified as necessary to relate to the Registration Statement, the Disclosure 
Package and the Prospectus as amended and supplemented to the time of delivery of such opinion. 

(n)

At the Execution Time and each Representation Date with respect to which the Company is obligated to deliver a 
certificate  pursuant  to  Section  4(k)  for  which  no  waiver  is  applicable,  the  Company  shall  cause  Pricewaterhouse  Coopers  LLP  (the  “Accountants”), or 
other independent accountants satisfactory to the Managers forthwith, to furnish the Managers a letter, dated and delivered on such Representation Date, in 
form and substance satisfactory to the Managers of the same tenor as the letter referred to in Section 6(e) of this Agreement but modified to relate to the 
Registration Statement, the Disclosure Package and the Prospectus, as amended and supplemented to the date of such letter. 

(o)

At each Representation Date, the Company shall cause to be furnished to the Managers a certificate of its chief 
financial officer, dated and delivered on such Representation Date, in form and substance satisfactory to the Managers of the same tenor as the certificate 
referred to in Section 6(f) of this Agreement but modified to relate to the Registration Statement, the Disclosure Package and the Prospectus, as amended 
and supplemented to the date of such letter.

(p)

At each Representation Date, and at such other times as may be reasonably requested by a Manager (which shall 
be on a monthly basis or otherwise), the Company will conduct a due diligence session, in form and substance satisfactory to the Managers, which shall 
include representatives of the management of the Company and the independent accountants of the Company. The Company shall cooperate timely with 
any  reasonable  due  diligence  request  from  or  review  conducted  by  the  Managers  or  its  agents  from  time  to  time  in  connection  with  the  transactions 
contemplated  by  this  Agreement,  including,  without  limitation,  providing  information  and  available  documents  and  access  to  appropriate  officers  and
agents  of  the  Company  during  regular  business  hours  and  at  the  Company’s  principal  offices,  and  timely  furnishing  or  causing  to  be  furnished  such 
certificates, letters and opinions from the Company, and their officers and agents, as the Managers may reasonably request.

Nothing  in  this  Agreement  shall  restrict  a  Manager  from  trading,  and  the  Company  acknowledges  that  each 
Manager may trade in the Common Stock for such Manager’s own account and for the accounts of its clients before, at the same time as, or after sales of 
the Shares occur pursuant to this Agreement or pursuant to a Terms Agreement.

(q)

(r)

The Company will either (i) disclose in its Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q, 
as applicable, with regard to the relevant quarter, the number of the Shares sold by or through the Managers pursuant to this Agreement, the Net Proceeds 
to the Company and the compensation paid by the Company with respect to such sales of the Shares pursuant to this Agreement, or (ii) on or prior to the 
earlier  of  (A)  the  date  on  which  the  Company  shall  file  a  Quarterly  Report  on  Form  10-Q  or  an  Annual  Report  on  Form  10-K  in  respect  of  any  fiscal 
quarter in which sales of Shares were made by a Manager pursuant to this Agreement and (B) the date on which the Company shall be obligated to file such 
document referred to in clause (A) in respect of such quarter (each such date, and any date on which an amendment to any such document is filed, a “Filing 
Date”), the Company will file a prospectus supplement with the Commission under the applicable paragraph of Rule 424(b), which prospectus supplement 
will set forth, with regard to such quarter, the number of the Shares sold by or through a Manager pursuant to this Agreement, the Net Proceeds to the 
Company  and  the  compensation  paid  by  the  Company  with  respect  to  such  sales  of  the  Shares  pursuant  to  this  Agreement  and  deliver  such  number  of 
copies of each such prospectus supplement to the Nasdaq as are required by such exchange.

If, to the knowledge of the Company, the conditions set forth in Section 6(a) or 6(g) shall not be true and correct 
on the applicable Settlement Date or Time of Delivery, the Company will offer to any person who has agreed to purchase Shares from the Company as the 
result of an offer to purchase solicited by a Designated Manager the right to refuse to purchase and pay for such Shares.

(s)

23

 
(t)

Each acceptance by the Company of an offer to purchase the Shares hereunder, and each execution and delivery 
by the Company of a Terms Agreement, shall be deemed to be an affirmation to the Designated Manager, or the Manager(s) party to a Terms Agreement, as 
the case may be, that the representations and warranties of the Company  contained in or made pursuant to this Agreement are true and correct as of the 
date of such acceptance or of such Terms Agreement as though made at and as of such date, and an undertaking that such representations and warranties 
will be true and correct as of the Settlement Date for the Shares relating to such acceptance or as of the Time of Delivery relating to such sale, as the case 
may be, as though made at and as of such date (except that such representations and warranties shall be deemed to relate to the Registration Statement and 
the Prospectus as amended and supplemented relating to such Shares).

and to maintain such listing.

(u)

The Company will use its commercially reasonable efforts to cause the Shares to be listed for trading on Nasdaq 

During any period when the delivery of a prospectus relating to the Shares is required (including in circumstances 
where such requirement may be satisfied pursuant to Rule 172 or any similar rule) to be delivered under the Act, the Company shall file, on a timely basis, 
with the Commission and Nasdaq all reports and documents required to be filed under the Exchange Act and the regulations thereunder.

(v)

for clearance and settlement through the facilities of DTC.

(w)

The Company shall cooperate with the Managers and use its reasonable efforts to permit the Shares to be eligible 

Package and the Prospectus.

(x)

The Company will apply the Net Proceeds from the sale of the Shares in the manner set forth in the Disclosure 

5.

Payment  of  Expenses.  The  Company  agrees  to  pay  all  costs,  fees  and  expenses  incurred  in  connection  with  the  performance  of  its 
obligations  under  this  Agreement,  whether  or  not  the  transactions  contemplated  hereby  are  consummated,  including  without  limitation  (i)  all  expenses 
incident to the issuance and delivery of the Shares (including all printing and engraving costs), (ii) all necessary issue, transfer and other stamp taxes in 
connection with the issuance and sale of the Shares, (iii) all fees and expenses of the Company’s counsel, independent public or certified public accountants 
and  other  advisors  to  the  Company,  and  the  reasonable  fees  and  expenses  of  the  Managers’  counsel  (which  shall  not  be  more  than  one  counsel  unless 
otherwise agreed by the Company), (iv) all costs and expenses incurred in connection with the preparation, printing, filing, shipping and distribution of the 
Registration Statement (including financial statements, exhibits, schedules, consents and certificates of experts), each Issuer Free Writing Prospectus and 
the Prospectus, and all amendments and supplements thereto, and this Agreement, (v) all filing fees, attorneys’ fees and expenses incurred by the Company 
or the Managers in connection with qualifying or registering (or obtaining exemptions from the qualification or registration of) all or any part of the Shares 
for offer and sale under the state securities or blue sky laws, and, if requested by the Managers, preparing a “Blue Sky Survey” or memorandum, and any 
supplements thereto, advising the Managers of such qualifications, registrations and exemptions, (vi) the filing fees incident to the review and approval by 
FINRA of the terms of the sale of the Shares, (vii) the fees and expenses associated with listing of the Shares on the Nasdaq, (viii) all fees and expenses of 
the registrar and transfer agent of the Common Stock, (ix) all fees and expenses (including reasonable fees and expenses of counsel) of the Company in 
connection with approval of the Shares by DTC for “book-entry” transfer, (x) all other fees, costs and expenses referred to in Item 14 of Part II of the 
Registration  Statement  and  (xi)  all  other  fees,  costs  and  expenses  incurred  in  connection  with  the  performance  of  its  obligations  hereunder  for  which 
provision is not otherwise made in this Section 5; provided, however, that the amount payable by the Company pursuant to subsection (iii) with respect to 
the reasonable fees and expenses of Managers’ counsel shall not exceed (A) $100,000 arising out of the executing the Original Agreement and the filing of 
the Registration Statement and the Prospectus and (B) in the amount not to exceed $15,000 per each quarter thereafter (solely for any quarter that includes a 
Representation Date with respect to which the Company is obligated to deliver a certificate pursuant to Section 4(k) for which no waiver is applicable). 
Except as provided in this Section 5 and in Section 7 hereof, the Managers shall pay their own expenses.

24

 
6.

Conditions to the Obligations of the Managers. The obligations of the Managers under this Agreement and any Terms Agreement shall 
be  subject  to  (i)  the  accuracy  of  the  representations  and  warranties  on  the  part  of  the  Company  contained  herein  as  of  the  Execution  Time,  each 
Representation Date, and as of each Applicable Time, Settlement Date and Time of Delivery, (ii) to the performance by the Company of its obligations 
hereunder and (iii) the following additional conditions:

(a)

The  Prospectus,  and  any  supplement  thereto,  required  by  Rule  424  to  be  filed  with  the  Commission  have  been 
filed in the manner and within the time period required by Rule 424(b) with respect to any sale of Shares; each Interim Prospectus Supplement shall have 
been filed in the manner required by Rule 424(b) within the time period required by Section 4(r) of this Agreement; any material required to be filed by the 
Company pursuant to Rule 433(d) under the Act, shall have been filed with the Commission within the applicable time periods prescribed for such filings 
by Rule 433; and no stop order suspending the effectiveness of the Registration Statement or any notice objecting to its use shall have been issued and no 
proceedings for that purpose or pursuant to Section 8A of the Act shall have been instituted or threatened.

the Managers, on every date specified in Section 4(l) of this Agreement, opinions in form and substance satisfactory to the Managers.

(b)

The Company shall have requested and caused Company Counsel and Intellectual Property Counsel to furnish to 

(c)

The  Managers  shall  have  received  from  Latham  &  Watkins  LLP,  counsel  for  the  Managers,  on  every  date 
specified in Section 4(m) of this Agreement, such opinion or opinions and disclosure letter or letters, dated as of such date and addressed to the Managers, 
with  respect  to  the  issuance  and  sale  of  the  Shares,  the  Registration  Statement,  the  Disclosure  Package,  the  Prospectus  (together  with  any  supplement 
thereto) and other related matters as the Managers may reasonably require, and the Company shall have furnished to such counsel such documents as they 
reasonably request for the purpose of enabling them to pass upon such matters.

(d)

The Company shall have furnished or caused to be furnished to the Managers, on every date specified in Section 
4(k) of this Agreement, a certificate of the Company, signed by the chief executive officer or the President of the Company, and of the chief financial or 
chief accounting officer of the Company, dated as of such date, to the effect that the signers of such certificate have carefully examined the Registration 
Statement, the Disclosure Package and the Prospectus and any supplements or amendments thereto and this Agreement and that:

the  Company  has  received  no  stop  order  suspending  the  effectiveness  of  the  Registration 
Statement, and no proceedings for such purpose or pursuant to Section 8A of the Act have been instituted or, to the Company’s knowledge, threatened by 
the Commission;

(i)

since  the  date  of  the  most  recent  financial  statements  included  in  the  Prospectus  and  the 
Disclosure Package, there has been no event or condition of a type described in Section 2(l) hereof (a “Material Adverse Change”), except as set forth in 
or contemplated in the Disclosure Package and the Prospectus;

(ii)

true and correct with the same force and effect as though expressly made on and as of such date; and

(iii)

the  representations,  warranties  and  covenants  set  forth  in  Section  2  of  this  Agreement  are 

satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such date.

(iv)

the  Company  and  its  subsidiaries  have  complied  with  all  the  agreements  hereunder  and 

25

 
(e)

The Company shall have requested and caused the Accountants to have furnished to the Managers, on every date 
specified in Section 4(n) hereof and to the extent requested by the Managers in connection with any offering of the Shares, letters (which may refer to 
letters previously delivered to the Managers), dated as of such date, in form and substance satisfactory to the Managers, which letters shall cover, without 
limitation, the various financial statements and disclosures contained in the Registration Statement, the Disclosure Package and the Prospectus and other 
matters ordinarily covered by accountants’ “comfort letters” to underwriters in connection with registered public offerings as contemplated in the Statement 
on Auditing Standards No. 72, as well as confirming that they have performed a review of any unaudited interim financial information of the Company 
included in the Registration Statement, the Disclosure Package and the Prospectus in accordance with Statement on Auditing Standards No. 100.

References to the Prospectus in this paragraph (e) include any supplement thereto at the date of the letter.

The Company shall have furnished or caused to be furnished to the Managers, on every date specified in Section 
4(o) of this Agreement, a certificate of the chief financial officer of the Company, dated as of such date, in form and substance to the Managers and agreed 
upon prior to the date hereof, covering certain financial matters of the Company.

(f)

(g)

Since  the  respective  dates  as  of  which  information  is  disclosed  in  the  Registration  Statement,  the  Disclosure 
Package  and  the  Prospectus,  except  as  otherwise  stated  therein,  there  shall  not  have  been  (i)  any  change  specified  in  the  letter  or  letters  referred  to  in 
paragraph  (e)  of  this  Section  6  or  (ii)  Material  Adverse  Change,  except  as  set  forth  in  or  contemplated  in  the  Disclosure  Package  (exclusive  of  any 
amendment  or  supplement  thereto)  the  effect  of  which,  in  any  case  referred  to  in  clause  (i)  or  (ii)  above,  is,  in  the  sole  judgment  of  the  Managers,  so 
material and adverse as to make it impractical or inadvisable to proceed with the offering or delivery of the Shares as contemplated by the Registration 
Statement (exclusive of any amendment thereof), the Disclosure Package and the Prospectus (exclusive of any amendment or supplement thereto).

arrangements under this Agreement.

(h)

FINRA  shall  not  have  raised  any  objection  with  respect  to  the  fairness  and  reasonableness  of  the  terms  and 

(i)

(j)

Nasdaq shall not have objected to the listing of the Shares for trading on Nasdaq.

Prior  to  each  Settlement  Date  and  Time  of  Delivery,  as  applicable,  the  Company  shall  have  furnished  to  the 

Designated Manager such further information, certificates and documents as the Designated Manager may reasonably request.

If any of the conditions specified in this Section 6 shall not have been fulfilled when and as provided in this Agreement, or if any of the opinions 
and certificates mentioned above or elsewhere in this Agreement shall not be reasonably satisfactory in form and substance to the Managers and counsel for 
the Managers, this Agreement and all obligations of the applicable Manager hereunder may be canceled at, or at any time prior to, any Settlement Date or 
Time of Delivery, as applicable, by such Manager with respect to itself only. Notice of such cancellation shall be given to the Company in writing or by
telephone or facsimile confirmed in writing. 

The documents required to be delivered by this Section 6 shall be delivered remotely via electronic exchange, on each such date as provided in 

this Agreement.

26

 
7.

Indemnification and Contribution.

(a)

The Company agrees to indemnify and hold harmless each Manager, its affiliates, as such term is defined in Rule 
501(b) under the Act (each, an “Affiliate”), the directors, officers, employees and agents of each Manager, any broker-dealer affiliate of a Manager through 
which Shares are sold, and each person who controls a Manager within the meaning of either the Act or the Exchange Act and against any loss, claim, 
damage,  liability  or  expense,  as  incurred,  to  which  they  or  any  of  them  may  become  subject  under  the  Act,  the  Exchange  Act  or  other  federal  or  state 
statutory law or regulation, at common law or otherwise (including in settlement of any litigation, if such settlement is effected with the written consent of 
the Company or otherwise permitted by paragraph (d) below), insofar as such loss, claim, damage, liability or expense (or actions in respect thereof as 
contemplated below) arises out of or is based (i) upon any untrue statement or alleged untrue statement of a material fact contained in the Registration 
Statement (or any amendment thereto) or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make 
the statements therein not misleading; or (ii) upon any untrue statement or alleged untrue statement of a material fact contained in any Issuer Free Writing 
Prospectus  or  any  “issuer  information”  filed  or  required  to  be  filed  pursuant  to  Rule  433(d)  under  the  Act,  the  Base  Prospectus,  the  Prospectus  or  any 
Interim Prospectus Supplement (or any amendment or supplement thereto) or the omission or alleged omission therefrom of a material fact, in each case, 
necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; or (iii) in whole or in part 
upon any inaccuracy in the representations and warranties of the Company contained herein; or (iv) in whole or in part upon any failure of the Company to 
perform its obligations hereunder or under law and agrees to reimburse each such indemnified party, for any and all expenses (including the reasonable fees 
and  disbursements  of  counsel  chosen  by  the  indemnified  party)  as  such  expenses  are  reasonably  incurred  by  them  in  connection  with  investigating, 
defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action; provided, however, that the foregoing indemnity 
agreement shall not apply to any loss, claim, damage, liability or expense to the extent, but only to the extent, arising out of or based upon any untrue 
statement or alleged untrue statement or omission or alleged omission made in reliance upon and in conformity with written information furnished to the 
Company  by  any  Manager  expressly  for  use  in  the  Registration  Statement  (or  any  amendment  thereto),  any  Issuer  Free  Writing  Prospectus  or  the 
Prospectus (or any amendment or supplement thereto). This indemnity agreement will be in addition to any liabilities that the Company may otherwise 
have.

27

 
(b)

Each  Manager  agrees,  severally  and  not  jointly,  to  indemnify  and  hold  harmless  the  Company,  each  of  its 
directors, each of its officers who signed the Registration Statement and each person, if any, who controls the Company within the meaning of the Act or 
the  Exchange  Act,  against  any  loss,  claim,  damage,  liability  or  expense,  as  incurred,  to  which  the  Company  or  any  such  director,  officer  or  controlling 
person  may  become  subject,  under  the  Act,  the  Exchange  Act,  or  other  federal  or  state  statutory  law  or  regulation,  or  at  common  law  or  otherwise 
(including in settlement of any litigation, if such settlement is effected with the written consent of such Manager or otherwise permitted by paragraph (d) 
below), insofar as such loss, claim, damage, liability or expense (or actions in respect thereof as contemplated below) arises out of or is based (i) upon any 
untrue  statement  or  alleged  untrue  statement  of  a  material  fact  contained  in  the  Registration  Statement  (or  any  amendment  thereto)  or  the  omission  or 
alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading; or (ii) upon any 
untrue statement or alleged untrue statement of a material fact contained in any Issuer Free Writing Prospectus or any “issuer information” filed or required 
to  be  filed  pursuant  to  Rule  433(d)  under  the  Act,  the  Base  Prospectus,  the  Prospectus  or  any  Interim  Prospectus  Supplement  (or  any  amendment  or 
supplement thereto) or the omission or alleged omission therefrom of a material fact, in each case, necessary in order to make the statements therein, in the 
light of the circumstances under which they were made, not misleading, in each case to the extent, but only to the extent, that such untrue statement or 
alleged untrue statement or omission or alleged omission was made in the Registration Statement, the Base Prospectus, any Issuer Free Writing Prospectus, 
any  Prospectus  or  any  Interim  Prospectus  Supplement  (or  any  amendment  or  supplement  thereto),  in  reliance  upon  and  in  conformity  with  written 
information furnished to the Company by any Manager expressly for use therein; and to reimburse the Company, or any such director, officer or controlling 
person  for  any  legal  and  other  expense  reasonably  incurred  by  the  Company,  or  any  such  director,  officer  or  controlling  person  in  connection  with 
investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action. The indemnity agreement set forth in 
this  Section  7(b)  shall  be  in  addition  to  any  liabilities  that  each  Manager  may  otherwise  have.  The  Company  acknowledges  that  with  respect  to  each 
Manager, the name of such Manager constitutes the only information furnished in writing by or on behalf of such Manager for inclusion in the Registration 
Statement, the Base Prospectus, any Issuer Free Writing Prospectus, any prospectus supplement or any Interim Prospectus Supplement (or any amendment 
or supplement thereto).

28

 
(c)

Promptly after receipt by an indemnified party under this Section 7 of notice of the commencement of any action, 
such indemnified party will, if a claim in respect thereof is to be made against the indemnifying party under this Section 7, notify the indemnifying party in 
writing of the commencement thereof; but the omission to so notify the indemnifying party will not relieve it from any liability which it may have to any 
indemnified  party  for  contribution  or  otherwise  than  under  the  indemnity  agreement  contained  in  paragraph  (a)  or  (b)  above  or  to  the  extent  it  is  not 
prejudiced (through the forfeiture of substantive rights or defenses) as a proximate result of such failure. In case any such action is brought against any 
indemnified party and such indemnified party seeks or intends to seek indemnity from an indemnifying party, the indemnifying party will be entitled to 
participate  in,  and,  to  the  extent  that  it  shall  elect,  jointly  with  all  other  indemnifying  parties  similarly  notified,  by  written  notice  delivered  to  the
indemnified  party  promptly  after  receiving  the  aforesaid  notice  from  such  indemnified  party,  to  assume  the  defense  thereof  with  counsel  reasonably 
satisfactory to such indemnified party; provided, however, if the defendants in any such action include both the indemnified party and the indemnifying 
party  and  the  indemnified  party  shall  have  reasonably  concluded  that  a  conflict  may  arise  between  the  positions  of  the  indemnifying  party  and  the 
indemnified party in conducting the defense of any such action or that there may be legal defenses available to it and/or other indemnified parties which are 
different from or additional to those available to the indemnifying party, the indemnified party or parties shall have the right to select separate counsel to 
assume such legal defenses and to otherwise participate in the defense of such action on behalf of such indemnified party or parties. Upon receipt of notice 
from  the  indemnifying  party  to  such  indemnified  party  of  such  indemnifying  party’s  election  to  assume  the  defense  of  such  action  and  approval  by  the 
indemnified  party  of  counsel,  the  indemnifying  party  will  not  be  liable  to  such  indemnified  party  under  this  Section  7  for  any  legal  or  other  expenses 
subsequently  incurred  by  such  indemnified  party  in  connection  with  the  defense  thereof  unless  (i)  the  indemnified  party  shall  have  employed  separate 
counsel in accordance with the proviso to the next preceding sentence (it being understood, however, that the indemnifying party shall not be liable for the 
expenses of more than one separate counsel (together with local counsel), approved by the indemnifying party (the Managers in the case of Section 7(b) 
and  Section  7(e)),  representing  the  indemnified  parties  who  are  parties  to  such  action),  (ii)  the  indemnifying  party  shall  not  have  employed  counsel 
reasonably satisfactory to the indemnified party to represent the indemnified party within a reasonable time after notice of commencement of the action, in 
each of which cases the fees and expenses of counsel shall be at the expense of the indemnifying party or (iii) the indemnifying party shall authorize the 
indemnified party to employ separate counsel at the expense of the indemnifying party.

(d)

The  indemnifying  party  under  this  Section  7  shall  not  be  liable  for  any  settlement  of  any  proceeding  effected 
without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the indemnifying party agrees to indemnify the 
indemnified party against any loss, claim, damage, liability or expense by reason of such settlement or judgment. Notwithstanding the foregoing sentence, 
if at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for reasonable and documented fees and 
expenses  of  counsel  as  contemplated  by  Section  7(c)  hereof,  the  indemnifying  party  agrees  that  it  shall  be  liable  for  any  settlement  of  any  proceeding 
effected without its written consent if (i) such settlement is entered into more than 60 days after receipt by such indemnifying party of the aforesaid request 
and (ii) such indemnifying party shall not have reimbursed the indemnified party in accordance with such request prior to the date of such settlement. No 
indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement, compromise or consent to the entry of judgment 
in any pending or threatened action, suit or proceeding in respect of which any indemnified party is or could have been a party and indemnity was or could 
have  been  sought  hereunder  by  such  indemnified  party,  unless  such  settlement,  compromise  or  consent  (i)  includes  an  unconditional  release  of  such 
indemnified party from all liability on claims that are the subject matter of such action, suit or proceeding and (ii) does not include a statement as to or an 
admission of fault, culpability or a failure to act, by or on behalf of any indemnified party.

29

 
(e)

If  the  indemnification  provided  for  in  this  Section  7  is  for  any  reason  held  to  be  unavailable  to  or  otherwise 
insufficient  to  hold  harmless  an  indemnified  party  in  respect  of  any  losses,  claims,  damages,  liabilities  or  expenses  referred  to  therein,  then  each 
indemnifying  party  shall  contribute  to  the  aggregate  amount  paid  or  payable  by  such  indemnified  party,  as  incurred,  as  a  result  of  any  losses,  claims, 
damages, liabilities or expenses referred to therein (i) in such proportion as is appropriate to reflect the relative benefits received by the Company, on the 
one hand, and each Manager, on the other hand, from the offering of the Shares pursuant to this Agreement, or (ii) if the allocation provided by clause (i) 
above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also 
the relative fault of the Company, on the one hand, and each Manager, on the other hand, in connection with the statements or omissions or inaccuracies in 
the representations and warranties herein which resulted in such losses, claims, damages, liabilities or expenses, as well as any other relevant equitable 
considerations. The relative benefits received by the Company shall be deemed to be equal to the total net proceeds from the offering (before deducting 
expenses) received by them, and benefits received by each Manager shall be deemed to be equal to the total compensation received by such Manager under 
Section 3(c) of this Agreement, in each case as determined by this Agreement or any applicable Terms Agreement. The relative fault of the Company, on 
the one hand, and each Manager, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue 
statement of a material fact or omission or alleged omission to state a material fact or any such inaccurate or alleged inaccurate representation or warranty 
relates to information supplied by the Company, on the one hand, or such Manager, on the other hand, and the parties’ relative intent, knowledge, access to 
information and opportunity to correct or prevent such statement or omission.

The amount paid or payable by a party as a result of the losses, claims, damages, liabilities and expenses referred to above shall be deemed to 
include,  subject  to  the  limitations  set  forth  in  Section  7(c),  any  legal  or  other  fees  or  expenses  reasonably  incurred  by  such  party  in  connection  with 
investigating or defending any action or claim. The provisions set forth in Section 7(c) with respect to notice of commencement of any action shall apply if 
a claim for contribution is to be made under this Section 7(e); provided, however, that no additional notice shall be required with respect to any action for 
which notice has been given under Section 7(c) for purposes of indemnification.

The Company and the Managers agree that it would not be just and equitable if contribution pursuant to this Section 7(e) were determined by pro 
rata allocation (even if the Managers were treated as one entity for such purpose) or by any other method of allocation which does not take account of the 
equitable considerations referred to in this Section 7(e).

Notwithstanding  the  provisions  of  this  Section  7(e),  no  Manager  shall  be  required  to  contribute  any  amount  in  excess  of  the  discounts  and 
commissions received by such Manager in connection with the Shares sold by it pursuant to this Agreement and any applicable Terms Agreement in the 
specific  transaction  or  transactions  giving  rise  to  the  contribution  obligation.  No  person  guilty  of  fraudulent  misrepresentation  (within  the  meaning  of 
Section  11(f)  of  the  Act)  shall  be  entitled  to  contribution  from  any  person  who  was  not  guilty  of  such  fraudulent  misrepresentation.  The  Managers’ 
obligations to contribute pursuant to this Section 7(e) are several, and not joint. For purposes of this Section 7(e), each Affiliate, director, officer, employee 
and agent of a Manager, each person, if any, who controls a Manager within the meaning of the Act and the Exchange Act and any broker-dealer affiliate of 
a Manager through which Shares are sold shall have the same rights to contribution as such Manager, and each director of the Company or each officer of 
the Company who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of the Act and the Exchange 
Act shall have the same rights to contribution as the Company.

8.

Termination.

(a)

The Company shall have the right, by giving written notice as hereinafter specified, to terminate the provisions of 
this Agreement relating to the solicitation of offers to purchase the Shares in its sole discretion at any time. Any such termination shall be without liability 
of any party to any other party except that (i) if Shares have been sold through a Manager for the Company, then Section 4(t) shall remain in full force and 
effect  with  respect  to  such  Manager  and  the  Company,  (ii)  with  respect  to  any  pending  sale,  through  the  Designated  Manager  for  the  Company,  the 
obligations  of  the  Company,  including  in  respect  of  compensation  of  the  Designated  Manager,  shall  remain  in  full  force  and  effect  notwithstanding  the 
termination  and  (iii)  the  provisions  of  Sections  2,  5,  7,  9,  10,  12  and  14  of  this  Agreement  shall  remain  in  full  force  and  effect  notwithstanding  such 
termination.

30

 
(b)

Each Manager shall have the right, by giving written notice as hereinafter specified, to terminate the provisions of 
this Agreement relating to the solicitation of offers to purchase the Shares in its sole discretion at any time, with respect to such Manager only. Any such 
termination shall be without liability of any party to any other party except that the provisions of Sections 2, 5, 7, 9, 10, 12 and 14 of this Agreement shall 
remain  in  full  force  and  effect  with  respect  to  such  Manager  notwithstanding  such  termination.  Following  any  such  termination  by  a  Manager,  this 
Agreement shall remain in effect as to each other Manager that has not exercised its right to terminate the provisions of this Agreement pursuant to this 
Section  8(b)  and  any  obligations  and  rights  of  the  Managers  under  this  Agreement  shall  be  satisfied  by  or  afforded  to,  as  applicable,  only  such  other 
Managers.

This Agreement shall remain in full force and effect unless terminated pursuant to Sections 8(a) or (b) above or 
otherwise by mutual agreement of the parties; provided that any such termination by mutual agreement shall in all cases be deemed to provide that Sections 
2, 5, 7 and 9 shall remain in full force and effect.

(c)

(d)

Any termination of this Agreement shall be effective on the date specified in such notice of termination; provided 
that such termination shall not be effective until the close of business on the date of receipt of such notice by a Manager or the Company, as the case may 
be. If such termination shall occur prior to the Settlement Date or Time of Delivery for any sale of the Shares, such sale shall, subject to Section 6 hereof, 
settle in accordance with the provisions of Section 3(e) of this Agreement.

(e)

In  the  case  of  any  purchase  of  Shares  by  a  Manager  pursuant  to  a  Terms  Agreement,  the  obligations  of  such 
Manager pursuant to such Terms Agreement shall be subject to termination, in the absolute discretion of such Manager, by notice given to the Company 
prior to the Time of Delivery relating to such Shares, if at any time prior to such delivery and payment (i) trading or quotation in any of the Company’s 
securities shall have been suspended or limited by the Commission or by Nasdaq, or trading in securities generally on either Nasdaq or the New York Stock 
Exchange shall have been suspended or limited, or minimum or maximum prices shall have been generally established on any of such stock exchanges by 
the Commission or FINRA; (ii) a general banking moratorium shall have been declared by any of federal or New York authorities; (iii) there shall have 
occurred any outbreak or escalation of national or international hostilities or any crisis or calamity involving the United States, or any change in the United 
States  or  international  financial  markets,  or  any  substantial  change  or  development  involving  a  prospective  substantial  change  in  United  States’  or 
international  political,  financial  or  economic  conditions,  as  in  the  judgment  of  such  Manager  is  material  and  adverse  and  makes  it  impracticable  or 
inadvisable to proceed with the offering or delivery of the Shares in the manner and on the terms described in the Disclosure Package and the Prospectus or 
to enforce contracts for the sale of securities; (iv) in the judgment of such Manager there shall have occurred any Material Adverse Change or (v) there 
shall have occurred a material disruption in commercial banking or securities settlement or clearance services in the United States.

9.

Representations and Indemnities to Survive. The respective agreements, representations, warranties, indemnities and other statements 
of the Company, the officers of the Company and of each Manager set forth in or made pursuant to this Agreement will remain in full force and effect, 
regardless of any investigation made by a Manager or the Company or any of the officers, directors, employees, agents or controlling persons referred to in 
Section 7 hereof, and will survive delivery of and payment for the Shares.

10.

Notices. All communications hereunder will be in writing and effective only on receipt, and:

If sent to Goldman, will be mailed, delivered or telefaxed to:

Goldman Sachs & Co. LLC
200 West Street
New York, New York 10282
Facsimile: (212) 902-9316
Attention: Registration Department

If sent to BofA Securities, Inc., will be mailed, delivered or telefaxed to

BofA Securities, Inc.

31

 
One Bryant Park
New York, NY 10036
Attention:  ATM Execution Team
Email: dg.atm_execution@bofa.com

with a copy to:

Latham & Watkins LLP
505 Montgomery Street, Suite 2000
San Francisco, California 94111
Attention: Phillip Stoup
E-mail: phillip.stoup@lw.com

If sent to the Company, will be mailed, delivered or telefaxed to:

FibroGen, Inc.
409 Illinois Street
San Francisco, CA 84158
Attention: Chief Legal Officer

with a copy to:

Cooley LLP
3175 Hanover Street 
Palo Alto, CA 94304
Facsimile: (650) 843-7400
Attention: Nancy Wojtas

Any party hereto may change the address for receipt of communications by giving written notice to the others.

11.

Successors. This Agreement will inure to the benefit of and be binding upon the parties hereto and their respective successors and the 
officers,  directors,  employees,  agents  and  controlling  persons  referred  to  in  Section  7  hereof,  and  no  other  person  will  have  any  right  or  obligation 
hereunder.

12.

No Fiduciary Duty. The Company hereby acknowledges that (a) the purchase and sale of the Shares pursuant to this Agreement is an 
arm’s-length commercial transaction between the Company, on the one hand, and the Manager and any affiliate through which it may be acting, on the 
other, (b) each Manager is acting solely as sales agent and/or principal in connection with the purchase and sale of the Company’s securities and not as a 
fiduciary of the Company and (c) the Company’s engagement of each Manager in connection with the offering and the process leading up to the offering is 
as independent contractors and not in any other capacity. Furthermore, the Company agrees that it is solely responsible for making its own judgments in 
connection with the offering (irrespective of whether a Manager has advised or is currently advising it on related or other matters). The Company agrees 
that it will not claim that a Manager has rendered advisory services of any nature or respect, or owe an agency, fiduciary or similar duty to the Company, in 
connection with the transactions contemplated by this Agreement or the process leading thereto.

13.

Integration. This Agreement and any Terms Agreement supersede all prior agreements and understandings (whether written or oral) 

between the Company and the Managers with respect to the subject matter hereof.

14.

Applicable Law. This Agreement and any Terms Agreement will be governed by and construed in accordance with the laws of the 

State of New York applicable to contracts made and to be performed within the State of New York.

32

 
 
 
 
15.

Waiver of Jury Trial. The Company hereby irrevocably waives, to the fullest extent permitted by applicable law, any and all right to 

trial by jury in any legal proceeding arising out of or relating to this Agreement, any Terms Agreement or the transactions contemplated hereby or thereby.

16.

Counterparts. This Agreement and any Terms Agreement may be signed in one or more counterparts, each of which shall constitute an 

original and all of which together shall constitute one and the same agreement.

17.

construction hereof.

Headings. The section headings used in this Agreement and any Terms Agreement are for convenience only and shall not affect the 

18.

Recognition of the U.S. Special Resolution Regimes. 

(a)

In  the  event  that  any  Manager  that  is  a  Covered  Entity  becomes  subject  to  a  proceeding  under  a  U.S.  Special 
Resolution Regime, the transfer from such Manager of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the 
same  extent  as  the  transfer  would  be  effective  under  the  U.S.  Special  Resolution  Regime  if  this  Agreement,  and  any  such  interest  and  obligation,  were 
governed by the laws of the United States or a state of the United States. 

(b)

In the event that any Manager that is a Covered Entity or a BHC Act Affiliate of such Manager becomes subject 
to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against such Manager are permitted to 
be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed 
by the laws of the United States or a state of the United States. 

As used in this Section 18: 

“BHC Act Affiliate” has the meaning assigned to the term “affiliate” in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k). 

“Covered Entity” means any of the following: 

(i) a “covered entity” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 252.82(b); 

(ii) a “covered bank” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 47.3(b); or 

(iii) a “covered FSI” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 382.2(b). 

“Default Right” has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1, as 

applicable. 

“U.S. Special Resolution Regime”  means  each  of  (i)  the  Federal  Deposit  Insurance  Act  and  the  regulations  promulgated  thereunder  and  (ii) 

Title II of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder. 

19.

Definitions. The terms that follow, when used in this Agreement and any Terms Agreement, shall have the meanings indicated.

“Act” shall mean the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder.

33

 
“Applicable Time” shall mean, with respect to any Shares, the time of sale of such Shares pursuant to this Agreement or any relevant Terms

Agreement.

“Base  Prospectus”  shall  mean  the  base  prospectus  referred  to  in  Section  2(a)  above  contained  in  the  Registration  Statement  at  the  Initial 

Execution Time.

“Business Day” shall mean any day other than a Saturday, a Sunday or a legal holiday or a day on which banking institutions or trust companies 

are authorized or obligated by law to close in New York City.

“Commission” shall mean the Securities and Exchange Commission.

“Designated Manager” shall mean, as of any given time, a Manager that the Company has designated as sales agent to sell Shares pursuant to 

the terms of this Agreement.

 “Disclosure Package” shall mean (i) the Base Prospectus, (ii) the Prospectus, (iii) the most recently filed Interim Prospectus Supplement, if any, 
(iv) the Issuer Free Writing Prospectuses, if any, identified in Schedule I hereto, (v) the public offering price of Shares sold at the relevant Applicable Time 
as specified in a Terms Agreement and (vi) any other Free Writing Prospectus that the parties hereto shall hereafter expressly agree in writing to treat as 
part of the Disclosure Package. 

“Effective  Date”  shall  mean  each  date  and  time  that  the  Registration  Statement  and  any  post-effective  amendment  or  amendments  thereto 

became or becomes effective. 

“Execution Time” shall mean the date and time that this Agreement is executed and delivered by the parties hereto.

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated 

thereunder.

“Free Writing Prospectus” shall mean a free writing prospectus, as defined in Rule 405.

“Initial Execution Time” shall mean the date and time that the Original Agreement was executed and delivered by the parties thereto.

“Interim Prospectus Supplement” shall mean the prospectus supplement relating to the Shares prepared and filed pursuant to Rule 424(b) from 

time to time as provided by Section 4(r) of this Agreement.

“Issuer Free Writing Prospectus” shall mean an issuer free writing prospectus, as defined in Rule 433.

“Prospectus”  shall  mean  the  Prospectus    included  in  the  Registration  Statement  relating  to  the  Shares  and  the  most  recently  filed  Interim 

Prospectus Supplement (if any).

“Registration Statement” shall mean the registration statement referred to in Section 2(a) above, including exhibits and financial statements and 
any prospectus supplement relating to the Shares that is filed with the Commission pursuant to Rule 424(b) and deemed part of such registration statement 
pursuant to Rule 430B, as amended on each Effective Date and, in the event any post-effective amendment thereto becomes effective, shall also mean such 
registration statement as so amended.

“Rule 158,” “Rule 163,” “Rule 164,” “Rule 172,” “Rule 405,” “Rule 415,” “Rule 424,” “Rule 430B” and “Rule 433” refer to such rules under 

the Act.

[Signature Page Follows]

34

 
 
If  the  foregoing  is  in  accordance  with  your  understanding  of  our  agreement,  please  sign  and  return  to  us  the  enclosed  duplicate  hereof, 

whereupon this letter and your acceptance shall represent a binding agreement among the Company and the Managers.

Very truly yours,

FIBROGEN, INC.

By:
Name:
Title:

/s/ Juan Graham
Juan Graham
Senior Vice President and Chief Financial Officer

SIGNATURE PAGE TO EQUITY DISTRIBUTION AGREEMENT

 
 
 
 
 
CONFIRMED AND ACCEPTED,

as of the date first written above:

Goldman Sachs & Co. LLC
By:
Name:
Title:

/s/ Emily West
Emily West
Managing Director

BofA Securities, Inc.
By:
Name:
Title:

/s/ Aamir Mecklai
Aamir Mecklai
Managing Director

SIGNATURE PAGE TO EQUITY DISTRIBUTION AGREEMENT

 
 
 
 
 
 
 
 
SCHEDULE I

Schedule of Free Writing Prospectuses included in the Disclosure Package

None

Schedule I

 
 
 
 
 
[Form of Terms Agreement] 

ANNEX I

____________, 20___

[name/address of designated manager]

Dear Sirs:

FIBROGEN, INC.
Common Stock ($0.01 par value) 

TERMS AGREEMENT

FibroGen, Inc., a Delaware corporation (the “Company”) proposes, subject to the terms and conditions stated herein and in the Amended and 
Restated  Equity  Distribution  Agreement,  dated  February  27,  2023  (the  “Equity  Distribution  Agreement”),  among  the  Company,  Goldman  Sachs  &  Co. 
LLC, and BofA Securities, Inc., to issue and sell to Goldman Sachs & Co. LLC and BofA Securities, Inc., the securities specified in the Schedule I hereto 
the “Purchased Shares”) [, and solely for the purpose of covering over-allotments, to grant to [name of designated manager] (the “Designated Manager”) 
the option to purchase the additional securities specified in the Schedule I hereto (the “Additional Shares”)] [Include only if the Designated Manager has 
an over-allotment option].

[The Designated Manager shall have the right to purchase from the Company all or a portion of the Additional Shares as may be necessary to 
cover over-allotments made in connection with the offering of the Purchased Shares, at the same purchase price per share to be paid by the Designated 
Manager to the Company for the Purchased Shares. This option may be exercised by the Designated Manager at any time (but not more than once) on or 
before  the  thirtieth  day  following  the  date  hereof,  by  written  notice  to  the  Company.  Such  notice  shall  set  forth  the  aggregate  number  of  shares  of 
Additional Shares as to which the option is being exercised, and the date and time when the Additional Shares are to be delivered (such date and time being 
herein referred to as the “Option Closing Date”); provided, however, that the Option Closing Date shall not be earlier than the Time of Delivery (as set 
forth in the Schedule I hereto) nor earlier than the second business day after the date on which the option shall have been exercised nor later than the fifth 
business day after the date on which the option shall have been exercised. Payment of the purchase price for the Additional Shares shall be made at the 
Option Closing Date in the same manner and at the same office as the payment for the Purchased Shares.] [Include only if the Designated Manager has an 
over-allotment option]

Each of the provisions of the Equity Distribution Agreement not specifically related to the solicitation by the Designated Manager, as agent of 
the Company, of offers to purchase securities is incorporated herein by reference in its entirety, and shall be deemed to be part of this Terms Agreement to 
the same extent as if such provisions had been set forth in full herein. Each of the representations and warranties set forth therein shall be deemed to have 
been made at and as of the date of this Terms Agreement [and] [,]  the Time of Delivery [and any Option Closing Date] [Include only if the Designated 
Manager has an over-allotment option], except that each representation and warranty in Section 2 of the Equity Distribution Agreement which makes 
reference to the Prospectus (as therein defined) shall be deemed to be a representation and warranty as of the date of the Equity Distribution Agreement in 
relation to the Prospectus, and also a representation and warranty as of the date of this Terms Agreement [and] [,] the Time of Delivery [and any Option 
Closing Date] [Include only if the Designated Manager has an over-allotment option] in relation to the Prospectus as amended and supplemented to 
relate to the Purchased Shares.

An amendment to the Registration Statement (as defined in the Equity Distribution Agreement), or a supplement to the Prospectus, as the case 
may be, relating to the Purchased Shares [and the Additional Shares] [Include only if the Designated Manager has an over-allotment option], in the 
form heretofore delivered to the Manager is now proposed to be filed with the Securities and Exchange Commission.

Subject to the terms and conditions set forth herein and in the Equity Distribution Agreement which are incorporated herein by reference, the 
Company agrees to issue and sell to the Designated Manager and the latter agrees to purchase from the Company the number of shares of the Purchased 
Shares at the time and place and at the purchase price set forth in the Schedule I hereto.

 
 
 
If the foregoing is in accordance with your understanding, please sign and return to us a counterpart hereof, whereupon this Terms Agreement, 
including  those  provisions  of  the  Equity  Distribution  Agreement  incorporated  herein  by  reference,  shall  constitute  a  binding  agreement  between  the 
Managers and the Company.

FIBROGEN, INC.

By:

Name:

Title:

ACCEPTED as of the date first written above.

[DESIGNATED MANAGER]

By:

Name:

Title:

 
 
 
 
 
 
 
 
 
 
 
 
[Form of Terms Agreement] 

Schedule I to the Terms Agreement

Title of Purchased Shares [and Additional Shares]:

Common Stock

Number of Shares of Purchased Shares:

[Number of Shares of Additional Shares:]

[Price to Public:]

Purchase Price by [Goldman Sachs & Co. LLC] [BofA Securities, Inc.]:

Method of and Specified Funds for Payment of Purchase Price:

By wire transfer to a bank account specified by the Company in same day funds.

Method of Delivery:

Free delivery of the Shares to the Manager’s account at The Depository Trust Company in return for payment of the purchase price.

Time of Delivery:

Closing Location:

Documents to be Delivered:

The following documents referred to in the Equity Distribution Agreement shall be delivered as a condition to the closing at the Time of Delivery [and on 
any Option Closing Date]:

(1)  The opinion referred to in Section 4(l).

(2)  The opinion referred to in Section 4(m).

(3)  The accountants’ letter referred to in Section 4(n).

(4)  The officers’ certificate referred to in Section 4(k).

(5)  Such other documents as the Manager shall reasonably request.

 
 
Annex II

Organizational Chart 

of 

FibroGen, Inc. 

And its Cayman, Hong Kong and China Subsidiaries

 
 
 
 
 
 [*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and 
(ii) would likely cause competitive harm to the company if publicly disclosed.

Exhibit 10.45

SAMSUNG BIOLOGICS CO., LTD.
AMENDMENT NO 1 TO PRODUCT SPECIFIC AGREEMENT – CLINICAL PRODUCT DRUG SUBSTANCE

This Amendment No. 1 to the Product Specific Agreement – Clinical Product Drug Substance (this “Amendment No. 1”) is made effective as of the date 
of last signature below (the “Amendment No. 1 Effective Date”) by and between FibroGen, Inc., a Delaware corporation having its principal place of 
business at 409 Illinois Street, San Francisco, California, USA 94158 (“Client”) and Samsung Biologics Co., Ltd., a Korean corporation having its 
principal place of business at [*] (“SBL”).  Client and SBL are sometimes referred to herein individually as a “Party” and collectively as the “Parties”.

  WHEREAS, Client and SBL entered into a Master Services Agreement effective October 30, 2020 (the “MSA”) and a Product Specific Agreement – 
Clinical Product Drug Substance effective October 30, 2020 (the “PSA”). In accordance with the terms of the MSA, SBL and Client wish to amend the 
PSA with effect from and as of the Amendment No. 1 Effective Date, as provided in this Amendment No. 1.  All capitalized terms not defined in this 
Amendment No. 1 will have the meanings given to them in the MSA and PSA.

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged the Parties agree as follows:

1. Amendments to the PSA.

a.

Section 5.c. of the PSA shall be deleted in their entirety and replaced with the following:

“c.  Product Purchase Commitment.

i. Notwithstanding anything to the contrary, during [*] (each a “Binding Year”), Client shall order from SBL on a [*], and SBL 
commits to Manufacture, the number of Batches of Product set forth in the table below on the terms and conditions set forth 
herein and in the MSA (the “Product Purchase Commitment”). The Product Purchase Commitment [*]. 

[*]

[*]

[*]

[*]

[*]

[*]

[*]

[*] 

ii. Within [*], Client shall update, issue and/or re-issue a binding Purchase Order for [*] for the [*].

iii.Notwithstanding anything to the contrary, [*] shall not apply to the PSA as amended by this Amendment No. 1.” 

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

 
 
 
 
 
 
 
 
 
2. Effect on the PSA.  Except as specifically amended by this Amendment No. 1, the PSA shall remain in full force and effect, and the PSA, as 

amended by this Amendment No. 1, is hereby ratified and affirmed in all respects.  Each reference in the PSA “to this PSA”, “herein,” “hereunder” or 
words of similar import shall mean and be a reference to the PSA as amended by this Amendment No. 1. All other applicable provisions of the MSA 
and PSA shall apply to this Amendment No. 1, mutatis mutandis.

3. Entire Agreement.  This Amendment No. 1, together with the MSA and the PSA constitute the entire agreement between the Parties relating to the 

subject matter hereof and supersede all previous oral and written communications between the Parties with respect to such subject matter.

4. Counterparts.  This Amendment No. 1 shall become binding following signatures of each of the Parties hereto. This Amendment No. 1 may be 

executed in two or more counterparts, each of which shall be deemed an original as against the Party whose signature appears thereon, but all of which 
taken together shall constitute but one and the same instrument. 

2
[ ] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 406 of the Securities Act of 1933, 
as amended.

Signature Page Follows.

 
 
 
 
 
The Parties have entered into this Amendment No. 1 as of the Amendment No. 1 Effective Date by their respective duly authorized representatives.  

SAMSUNG BIOLOGICS CO., LTD.

FIBROGEN, INC.

By:
Name:

Title:   
Date:

/s/ [*]

[*]
[*]
Oct 24, 2022

By:

Name:
Title:   
Date:

/s/ [*]
[*]
[*]

10/25/2022

3
[ ] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 406 of the Securities Act of 1933, 
as amended.

 
 
 
 
 
 
 
 
 
 
Execution Version
[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) 
would likely cause competitive harm to the company if publicly disclosed.

Exhibit 10.46

REVENUE INTEREST FINANCING AGREEMENT

This Revenue Interest Financing Agreement (this “Agreement”) is entered into as of November 4, 2022 (the “Effective Date”), between 

FibroGen, Inc., a Delaware corporation having an address of 409 Illinois Street, San Francisco, CA 94158 (“Company”) and NQ Project Phoebus, L.P., a 
Delaware limited partnership having an address of 4208 Six Forks Road, Suite 920 Raleigh, NC 27609 (“NovaQuest”). Company and NovaQuest are each 
referred to herein by name or, individually, as a “Party” or, collectively, as “Parties.”

INTRODUCTION

A.  Company researches, develops, and commercializes products for the treatment of human diseases, disorders, and conditions.

B.  Company has previously entered into certain agreements with Astellas (as defined below), pursuant to which, among other things, Company 

granted Astellas a license to commercialize the Product (as defined below) in the Territory (as defined below) and Company receives certain payments 
from Astellas in connection therewith.

C. 

In consideration of the Investment Amount (defined below), NovaQuest and Company desire for NovaQuest to be granted an undivided 

percentage interest in Company’s revenue received under the Astellas Agreements (defined below) and for Company to make certain payments to 
NovaQuest as set forth herein, all subject to the terms and conditions of this Agreement.

D.  As a material inducement for NovaQuest’s entry into this Agreement, the Company has agreed to grant to NovaQuest a security interest in 

the Collateral, as set forth in this Agreement.

NOW, THEREFORE, in consideration of the premises and mutual covenants herein below, and for other good and valuable consideration, the 

receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:

ARTICLE I 

DEFINITIONS

1.1   Defined Terms. When used and capitalized in this Agreement (other than the headings of the Articles and Sections), including the foregoing recitals, 
exhibits and schedules hereto, the following terms shall have the meanings assigned to them in this ARTICLE I and include the plural as well as the 
singular and include all participles of each such term, as applicable.

“2022 Royalty Dates” has the meaning set forth in Section 4.1.

“AAA” has the meaning set forth in Section 11.2(b).

“AAA Rules” has the meaning set forth in Section 11.2(b).

[*].

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

 
 
“Acquiring Party” means a Third Party that obtains control of Company in connection with a Change of Control of Company. For purposes of 

this definition, the term “control” shall have the meaning set forth in the definition of Affiliate.

“Act” means, collectively, the United States Federal Food, Drug, and Cosmetic Act of 1938, including any amendments thereto, and all 

regulations promulgated thereunder and any successor laws.

“Affiliate” means, with respect to an entity, any business entity controlling, controlled by, or under common control with, such entity, but only 

for so long as such control exists. For the purposes of this definition, “controlling,” “controlled,” and “control” mean the possession, directly (or indirectly 
through one or more intermediary entities), of the power to direct the management or policies of an entity, including through ownership of fifty percent 
(50%) or more of the voting securities of such entity (or, in the case of an entity that is not a corporation, ownership of fifty percent (50%) or more of the 
corresponding interest for the election of the entity’s managing authority). Notwithstanding the foregoing, for purposes of this Agreement, NovaQuest 
Capital Management, L.L.C. shall be deemed to have no control Persons.

“Agreement” has the meaning set forth in the preamble hereto.

“Applicable Law” means any applicable law, rule, or regulation of any Governmental Authority, or judgment, order, writ, decree, permit, or 

license of any Governmental Authority. 

“Arbitration” has the meaning set forth in Section 11.2(b).

“Arbitrator” has the meaning set forth in Section 11.2(c).

“Astellas” means Astellas Pharma Inc., a Japanese corporation with a principal place of business at 3-11 Nihonbashi-Honcho, 2-Chome, Chuo-

ku, Tokyo, 103-8411 Japan.

“Astellas Agreement” means each or any of the Astellas EMEA Agreement or the Astellas Japan Agreement. “Astellas Agreements” means both 

of the foregoing, collectively.

“Astellas EMEA Agreement” means (a) that certain Anemia License and Collaboration Agreement by and between Astellas Pharma Inc. and 
FibroGen, Inc. dated April 28, 2006, as amended and supplemented by that certain Amendment to Anemia License and Collaboration Agreement, dated 
August 31, 2006, that certain Amendment No. 2, dated December 1, 2006, and that certain Amendment No. 3, dated May 10, 2012, attached hereto as 
Exhibit B, and as may be further amended from time to time in accordance with this Agreement and (b) that certain Astellas EU Supply Agreement dated 
Jan 1, 2021, as amended (“Astellas EMEA Supply Agreement”).

“Astellas EMEA Revenue” means, [*].

“Astellas Japan Agreement” means that certain Collaboration Agreement by and between Astellas Pharma Inc. and FibroGen, Inc. dated June 1, 

2005, as amended January 1, 2013, attached hereto as Exhibit C, and as may be further amended from time to time in accordance with this Agreement.

“Astellas Japan Revenue” means, [*].  

“Astellas Other Revenue” means [*]. 

“Astellas Revenue” means, collectively, the Astellas EMEA Revenue, the Astellas Japan Revenue and the Astellas Other Revenue.

“Bankruptcy Event of Default” means any of: (a) the liquidation or dissolution of Company; (b) a Voluntary Bankruptcy; or (c) an Involuntary 

Bankruptcy

“Bankruptcy Laws” means, collectively, bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance, fraudulent transfer, or 

other similar laws affecting the enforcement of creditors’ rights generally.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

2

 
“Business Day” means any day other than Saturday, Sunday, or any day on which banking institutions located in the State of New York are 

permitted or obligated by law to close. 

“Change of Control” means, with respect to Company a transaction with one or more Third Parties that is: (a) a merger, share exchange, or other 
reorganization of Company; (b) the sale, by one or more stockholders or holders of equity securities, of stock or equity securities representing a majority of 
the voting power of Company; or (c) the sale or exclusive license of all or substantially all of the assets of the Company, or a sale of Company’s business 
and assets related to the Product; or (d) the acquisition of majority control of the board of directors or equivalent governing body of Company, for which, in 
each of cases of clauses (a) and (b) of this definition, the stockholders or holders of other equity securities of Company prior to such transaction do not own 
a majority of the voting power of the acquiring, surviving, or successor entity, as the case may be.

“Collateral” means the Revenue Interest Collateral and the Product IP Rights.

“Collateral Revenue Interests” means, in each case, as further described in Section 4.1(a) (i) twenty-two and one-half percent (22.5%) of each of 

the Astellas EMEA Revenue, Astellas Japan Revenue and Replacement Net Sales Revenue, (ii) from the Effective Date and through Fiscal Year 2027, ten 
percent (10%) of Astellas Other Revenue, (iii) for Fiscal Year 2028 and all Fiscal Years thereafter, twenty percent (20%) of Astellas Other Revenue , (iv) 
for Fiscal Years prior to 2028, ten percent (10%) of Replacement Other Revenue, and (v) for Fiscal Year 2028 and all Fiscal Years thereafter, twenty 
percent (20%) of Replacement Other Revenue.

“Commercially Reasonable Efforts” means, [*].

“Commercialize” or “Commercialization” means any and all activities directed to marketing, promoting, distributing, importing, exporting, 

offering to sell, or selling the Product, including commercial manufacturing activities.

“Company” has the meaning set forth in the preamble hereto.

“Company Competitor” means any Person that, in the Fiscal Year preceding the date of determination, derived more than [*]) of its revenue 

from its or its Affiliates’ direct sales of pharmaceutical products.

“Compound” means Roxadustat, as more particularly described in Exhibit D.

“Confidential Information” has the meaning set forth in Section 6.1.

“Cover” means that the use, manufacture, sale, offer for sale, development, commercialization, or importation of the subject matter in question 

by an unlicensed entity would infringe a claim of an issued Patent, or a claim, if issued, of a patent application that constitutes a Patent.

“Custodian” means any receiver, trustee, assignee, liquidator, custodian, or similar official under any Bankruptcy Law.

“Data Room” has the meaning set forth in Section 5.4.

“Default” means any event that, with the giving of notice or passage of time, or both, could result in an Event of Default.

“Defaulting Party” has the meaning set forth in Section 8.6(d)(iii).

“Diligence Expenses” means NovaQuest’s reasonable and documented out-of-pocket legal fees, due diligence expenses, and other reasonable 

and documented out-of-pocket expenses relating to the Transaction Documents that have been incurred up to and on the Effective Date, up to [*].

“Dispute” has the meaning set forth in Section 11.2(a).

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

3

 
“Dispute Notice” has the meaning set forth in Section 11.2(a).

“Dollars” or “$” means U.S. dollars.

“Effective Date” has the meaning set forth in the preamble hereto.

“Encumbrance” means any lien, charge, security interest, mortgage, option, privilege, pledge, right of first refusal, hypothecation, adverse 

ownership interest, charge, trust or deemed trust (whether contractual, statutory, or otherwise arising), or any other encumbrance, right, or claim of any 
other Person of any kind whatsoever whether choate or inchoate. “Encumber” means to restrict, impose, suffer, or otherwise create any Encumbrance. 

“ESG Questionnaires” has the meaning set forth in Section 5.4.

“Event of Default” means each or any of: (a) any Bankruptcy Event of Default; (b) the breach by Company of any material payment obligations 

under Section 4.1 of this Agreement, which failure to pay continues for more than [*] after receipt by Company of written notice from NovaQuest; (c) 
except as set forth in clause (b) of this definition, the breach by Company of any of its obligations under this Agreement, where written notice of such 
breach has been provided by NovaQuest to Company and Company has not cured such breach within [*] following receipt of such notice and where such 
breach, if not cured, would reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect; (d) breach by Company of any of 
its respective obligations under any Astellas Agreement, and which breach, if curable, is not cured within [*] following receipt by Company of written 
notice of such breach and where such breach, if not cured, would reasonably be expected to have, individually or in the aggregate, a Material Adverse 
Effect; and (e)(i) [*].

“Event of Default Fee” means [*].

“Event of Default Payment Date” has the meaning set forth in Section 8.3(a).

“FDA” means the United States Food and Drug Administration, or any successor agency thereto. 

“Fiscal Quarter” means each of the following three (3)‑month periods during each Fiscal Year: January 1 through March 31; April 1 through 

June 30; July 1 through September 30; and October 1 through December 31. 

“Fiscal Year” means the twelve (12)‑month period from January 1 through December 31. 

“GAAP” means U.S. generally accepted accounting principles, as in effect on the date or for the period with respect to which such standards are 

applied.

“Governmental Authority” means any national, supra‑national (e.g., the European Commission or the Council of the European Union), federal, 

state, local, or foreign court or governmental agency, authority, instrumentality, regulatory body, department, bureau, political subdivision, or other 
governmental entity (including the FDA, the European Medicines Agency, the Japanese Ministry of Health, Labour and Welfare or Pharmaceuticals and 
Medical Devices Agency, and the Medicines and Health Products Regulatory Agency, as well as any similar regulatory body in any country in the 
Territory) or any arbitrational tribunal, in each case of a competent jurisdiction, including any such authority that is responsible for taxation or for issuing 
approvals, licenses, registrations, or authorizations necessary for the manufacture, import, sale, pricing, or use of the Product for human therapeutic use in 
any applicable regulatory jurisdiction.

“Gross‑Up Amount” has the meaning set forth in Section 4.3(a).

“GxP” means all relevant Governmental Authority requirements for: (a) current Good Clinical Practices for the design, conduct, performance, 

monitoring, auditing, recording, analyses and reporting of clinical trials; (b) current Good Laboratory Practice for laboratory activities for pharmaceuticals; 
and (c) current Good Manufacturing Practices, including in each case, as set forth in Title 21 of the United States Code of Federal Regulations.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

4

 
“IFRS” means international accounting standards, as in effect on the date or for the period with respect to which such standards are applied, as 

established by the International Financial Reporting Standards.

“Indebtedness” means, with respect to a Person: (a) all obligations of such Person for borrowed money; (b) all obligations of such Person 

evidenced by a note, bond, debenture, or similar instrument; (c) all obligations of such Person upon which interest charges are customarily paid; (d) all 
obligations of such Person under conditional sale or other title retention agreements relating to property acquired by such Person; (e) all obligations of such 
Person in respect of the deferred purchase price of property or services (excluding deferred compensation and accounts payable incurred in the ordinary 
course of business and not overdue by more than [*]; (f) all Indebtedness as described in clauses (a) through (e) or clauses (h) through (l) of others secured 
by (or for which the holder of such indebtedness has an existing right, contingent or otherwise, to be secured by) any Lien on property owned or acquired 
by such Person if the Indebtedness secured thereby has been assumed; (g) all guarantees by such Person of Indebtedness as described in clauses (a) through 
(e) or clauses (h) through (l) of others; (h) all capital lease obligations of such Person; (i) all obligations, contingent or otherwise, of such Person as an 
account party in respect of letters of credit and letters of guaranty; (j) all net obligations of such Person under any interest rate exchange agreement, foreign 
currency exchange agreement, commodity price protection agreement, currency swap, forward, future or derivative transactions or other interest or 
currency exchange rate or commodity price hedging arrangement; (k) all obligations, contingent or otherwise, of such Person in respect of bankers’ 
acceptances; and (l) any disqualified equity interests of such Person.

“Indemnified Party” has the meaning set forth in Section 10.2(a).

“Investment Amount” has the meaning set forth in Section 3.1(a).

“Investor Return Payment” means each or any of the Revenue Interest Payments, True-Up Payments, or Event of Default Fee. “Investor Return 

Payments” means all of the foregoing, collectively.

“Investor Return Payment Satisfaction” has the meaning set forth in Section 4.1(e).

“Involuntary Bankruptcy” means a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that: (a) is for relief 
against Company in an involuntary case; (b) appoints a Custodian of Company or for any substantial part of its property; or (c) orders the winding up or 
liquidation of Company; or any similar relief is granted under any non-U.S. laws, and in each case ((a)–(c)), such order or decree remains unstayed and in 
effect for [*].

“Knowledge of Company” or “Knowledge” means the actual knowledge, after making reasonable inquiry, of [*].

“Liabilities” means any and all indebtedness, liabilities, and obligations, whether accrued, fixed, or contingent, mature or inchoate, known or 

unknown, reflected on a balance sheet or otherwise, including those arising under any law or judgment of any court of any kind or any award of any 
arbitrator of any kind, and those arising under any contract, commitment, or undertaking.

“License” means a grant of any Product IP Rights or Regulatory Approvals for making, developing, Commercializing or otherwise exploiting the 
Product in the Territory. For the avoidance of doubt: (a) the Astellas EMEA Agreement is a License; (b) the Astellas Japan Agreement is a License; and (c) 
any Replacement Agreement shall be a License.

“Licensee” means a Third Party or an Affiliate of Company that is granted a License, by Company, an Affiliate of Company, or another 

Licensee. For the avoidance of doubt: (a) Astellas is a Licensee and (b) any Third Party that enters into a Replacement Agreement with Company or with 
any Affiliate of Company shall be a Licensee.

“Lien” means any mortgage, lien, pledge, participation interest, charge, adverse claim, security interest, encumbrance or restriction of any kind, 

whether voluntarily incurred and arising by operation by law or otherwise, including any restriction on use, transfer or exercise of any other attribute of 
ownership of any kind.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

5

 
“Loss” has the meaning set forth in Section 10.1.

“Material Adverse Effect” means any material adverse effect on: (a) the ability of the Company to make the Revenue Interest Payments required 

to be made by this Agreement; (b) the Commercialization of the Product in the Territory; (c) for the purpose of Section 7.1 only, any of the Product IP 
Rights, including Company’s rights in or to any Product IP Rights; (d) for the purpose of Section 7.1 only, any Regulatory Approval granted prior to the 
Effective Date for the Product in the Territory; (e) for the purpose of Section 7.1 only, the legality, validity, or enforceability of any Astellas Agreement or 
Transaction Document; (f) the ability of Company to perform any of its material obligations under any Astellas Agreement or Transaction Document, or to 
consummate the transactions contemplated hereby or thereby; or (g) the rights or remedies of NovaQuest under any Transaction Document.

“Material Contract” means: (a) any agreement to which Company or any Affiliate of Company is a party and is material to the 

Commercialization of the Product in the Territory; or (b) any other agreement to which Company or any Affiliate of Company is a party for which breach, 
non-performance, or failure to renew by a Responsible Party could reasonably be expected to result in a Material Adverse Effect; [*].

“NDA” means a new drug application (as defined in Title 21 of the U.S. Code of Federal Regulations, as amended from time to time) submitted 
to the FDA seeking approval to introduce, distribute, sell, or market a drug product for human therapeutic use in the U.S. (including a new drug application 
submitted under Section 505(b)(2) of the Act) and the foreign equivalent in any country in the Territory.

“NovaQuest Indemnitees” has the meaning set forth in Section 10.1.

“NovaQuest” has the meaning set forth in the preamble hereto.

“Parties” has the meaning set forth in the preamble hereto.

“Party” has the meaning set forth in the preamble hereto.

“Patents” means all patents (including all reissues, extensions, substitutions, confirmations, re‑registrations, re‑examinations, revalidations, 

supplementary protection certificates, and patents of addition) and patent applications (including all provisional applications, continuations, 
continuations‑in‑part, and divisions) and all counterparts and equivalents of any of the foregoing in any country or jurisdiction.

“Payment Cap” means: (a) with respect to a date of determination that is on or before December 31, 2028, One Hundred Million Dollars 

($100,000,000); (b) with respect to a date of determination that is on or after January 1, 2029, but on or before December 31, 2029, One Hundred Twelve 
Million, Five Hundred Thousand Dollars ($112,500,000); or (c) with respect to a date of determination that is after January 1, 2030, One Hundred Twenty-
Five Million Dollars ($125,000,000).

“Payment Report” has the meaning set forth in Section 4.1(f).

“Permitted Company” means [*].

“Permitted Encumbrance” means

(a) Encumbrances imposed by law, such as carriers’, warehousemen’s, landlords’, materialmen’s, repairman’s, construction contractors’, 
mechanics’, airports’, navigation authority’s or other like Encumbrances, in each case for sums not yet overdue by more than [*] or being contested in good 
faith by appropriate proceedings or other Encumbrances arising out of judgments or awards against such Person with respect to which such Person shall 
then be proceeding with an appeal or other proceedings for review (or which, if due and payable, are being contested in good faith by appropriate 
proceedings and for which adequate reserves are being maintained, to the extent required by IFRS);

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

6

 
(b) Encumbrances for taxes, assessments or other governmental charges or levies (i) which are not yet overdue for [*] or not yet due or payable, 
(ii) which are being contested in good faith by appropriate proceedings and (iii) for which adequate reserves are being maintained to the extent required by 
IFRS or GAAP;

(c) Encumbrances securing indebtedness (including, without limitation, capital lease obligations and purchase money obligations) incurred by the 

Company to finance all or any part of the purchase, lease, construction, installation, repair or improvement of property (real or personal), plant or 
equipment or other fixed or capital assets; provided such lien extends only to the assets the acquisition, lease, construction, repair, replacement or 
improvement of which is financed thereby and any replacements, additions and accessions thereto and any income or profits thereof;

(d) Encumbrances on specific items of inventory or other goods and proceeds of any Person securing such Person’s obligations in respect of 
bankers’ acceptances or letters of credit entered into in the ordinary course of business issued or created for the account of such Person to facilitate the 
purchase, shipment or storage of such inventory or other goods;

(e) grants of software, technology and other intellectual property licenses in the ordinary course of business;

(f) Encumbrances in favor of customs and revenue authorities arising as a matter of law to secure payment of customs duties in connection with 

the importation and exportation of goods in the ordinary course of business; 

(g) [*]; 

(h) the Encumbrances or Liens granted in favor of NovaQuest pursuant to this Agreement; and

(i) Encumbrances arising solely by virtue of any statutory or common law provision or customary business provision relating to banker’s 

encumbrances, rights of set-off or similar rights.

“Person” means any natural person, corporation, trust, joint venture, association, unincorporated organization, cooperative, company, 
partnership, trust, limited liability company, government (domestic or foreign), and any agency or instrumentality thereof, or any other entity recognized by 
law.

“Prepayment” has the meaning set forth in Section 4.1(d).

“Prepayment Amount” means, as of the date of determination: (a) the amount that is in the column labeled “Prepayment Amount” and in the row 
with the then-current “Fiscal Year” in the table set forth below this definition; minus (b) the sum of any Revenue Interest Payments paid to NovaQuest prior 
to such date.

Fiscal Year During Which Prepayment Amount is Received 
by NovaQuest

Prepayment Amount

[*]
[*]
[*]
[*]
2028
2029
2030

$80,000,000
[*]
[*]
[*]
$100,000,000
$112,500,000
$125,000,000

“Prime Rate” has the meaning set forth in Section 4.4.

“Product” means any prescription pharmaceutical product that contains the Compound.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

7

 
“Product IP Rights”  means all of the following intellectual property owned or licensed by the Company, in each case, as they exist in the 
Territory and solely as necessary or useful to the manufacturing, development or Commercialization of the Product in the Territory: (a) the Product 
Know‑How; (b) the Product Patents; and (c) all trademarks, service marks, trade names, and works protectable under copyright laws. 

“Product Know‑How” means, with respect to the Product in the Territory, all trade secrets, technology, processes, practices, formulae, 

instructions, procedures, assembly procedures, results (including biological, chemical, pharmacological, toxicological, pharmaceutical, physical and 
analytical, preclinical, clinical, safety, manufacturing and quality control data, including study designs and protocols), know-how, methods, treatments, 
techniques, systems, designs, artwork, drawings, plans, specifications, data and information, in each case whether or not confidential, proprietary, 
patentable, copyrightable, or susceptible to any other form of legal protection, in written, electronic or any other form.

“Product Patents” has the meaning set forth in Section 7.1(e).

“Quarterly Report” means a report submitted by Company to NovaQuest in accordance with the provisions of Section 3.1(b), that contains (a) 

the information from quarterly reports in respect of the preceding Fiscal Quarter or other reports and material correspondence received from Astellas during 
the preceding Fiscal Quarter under its obligations under the Astellas Agreements relating to Commercialization of the Product in the Territory; (b) a 
statement setting forth Company’s good faith qualitative assessment of Astellas’s performance of its obligations under the Astellas Agreements relating to 
Commercialization of the Product in the Territory during the preceding Fiscal Quarter; and (c) at any time after the termination of either of the Astellas 
Agreements and Company’s entry into a Replacement Agreement, information similar to the information set forth in clauses (a) and (b) of this definition to 
the extent received from any Responsible Party or to the extent pertaining to such Responsible Party’s performance under the applicable Replacement 
Agreement. All amounts in each Quarterly Report shall be denominated in Dollars. Notwithstanding the foregoing, Company may, at its election, deliver 
the information contemplated herein and therein via disclosures made pursuant to Company’s public reporting requirements, by delivery of summaries, 
reports, or presentations to NovaQuest, or by providing excerpts of materials presented to the Company’s board of directors or executive leadership team.  

“Recordkeeping Period” has the meaning set forth in Section 5.2(a).

“Register” has the meaning set forth in Section 11.6.

“Regulatory Approval” means, with respect to the Product, in any country or jurisdiction, any approval, registration, license, or authorization 

that is required by the applicable Governmental Authority to market and sell such Product in such country or jurisdiction.

“Regulatory Filing” means any application, filing, or submission required by or provided to a Governmental Authority relating to the 

development, manufacture, Commercialization, pricing, or other exploitation of the Product, including any supporting documentation, correspondence, 
meeting minutes, amendments, supplements, registrations, licenses, regulatory drug lists, advertising and promotion documents, adverse event files, 
complaint files, and manufacturing, shipping, or storage records with respect to any of the foregoing, including an NDA, drug master filing, clinical trial 
application, and any counterparts or equivalents of any of the foregoing.

“Replacement Agreement” means an agreement entered into between Company or any Affiliate of Company and a Third Party following the 

termination (in whole or in part) of any Astellas Agreement in which Company grants a License or otherwise transfers any of the Product IP Rights in the 
Territory or other rights that are relevant to making, using, selling, offering for sale, or importation of the Product in the Territory. Agreements expressly 
considered Replacement Agreements include: (x) exclusive licenses, option agreements, right of first refusal agreements, non-assertion agreements, 
distribution agreements that grant or otherwise transfer any Product IP Rights in the Territory, or similar agreements; and (y) agreements that grant or 
otherwise transfer rights in the Product IP Rights along with rights owned by Company or any Affiliate of Company or granted to Company or any Affiliate 
of Company by a Third Party. For the avoidance of doubt, Replacement Agreement excludes any or all of the Astellas Agreements.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

8

 
“Replacement Net Sales Revenue” means any payments based on sales of the Product in the Territory received by Company or any of its 

Affiliates under or pursuant to a Replacement Agreement. For the avoidance of doubt, Replacement Net Sales Revenue excludes Astellas EMEA Revenue, 
Astellas Japan Revenue, and Astellas Other Revenue.

“Replacement Other Revenue” means any revenue, other than Replacement Net Sales Revenue, recognized by Company or any of its Affiliates 
under or pursuant to a Replacement Agreement attributable to payments for the Product in the Territory. For the avoidance of doubt, Replacement Net Sales 
Revenue excludes Astellas EMEA Revenue, Astellas Japan Revenue, and Astellas Other Revenue.

“Responsible Party” means Company, Astellas, its and their respective Affiliates and Licensees, and any Acquiring Party.

“Revenue Interest Collateral” means the [*].

“Revenue Interests” means [*].

“Revenue Interest Payment” has the meaning set forth in Section 4.1(a). “Revenue Interest Payments” means the Revenue Interest Payment, 

collectively.

“Sales Forecast” has the meaning set forth in Section 5.1(b).

[*].

[*].

[*].

“Senior Officer” means: (a) in the case of NovaQuest, its chief investment officer; and (b) in the case of Company, its Chief Executive Officer.

[*].

“Tax” means any present or future tax, levy, impost, duty, assessment, charge, fee, deduction, or withholding in the nature of a tax and whatever 

called (including interest and penalties thereon) imposed, levied, collected, withheld, or assessed by any Governmental Authority.

“Term” has the meaning set forth in Section 9.1.

“Territory” means each or any of the following countries, individually or collectively: Albania, Andorra, Armenia, Austria, Azerbaijan, Belarus, 

Belgium, Bosnia & Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Georgia, Germany, Greece, 
Hungary, Iceland, Ireland, Italy, Japan, Kazakhstan, Kyrgyzstan, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Netherlands, 
Norway, North Macedonia, Poland, Portugal, Romania, Russia, San Marino, Serbia and Montenegro (Yugoslavia), Slovakia, Slovenia, South Africa, Spain, 
Sweden, Switzerland, Tajikistan, Turkey, Turkmenistan, Ukraine, United Kingdom, Uzbekistan, Vatican City, Bahrain, Iran, Iraq, Israel, Jordan, Kuwait, 
Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen, and any other country in which Astellas has rights to Commercialize the 
Product (an “Additional Country”) (provided that any such Additional Country shall be included in the Territory only if and to the extent Astellas is 
Commercializing the Product in such Additional Country).

“Third Party” means any Person, including a Governmental Authority, other than Company, NovaQuest, and each of their respective Affiliates.  

“Third-Party” has the corresponding meaning. 

“Third‑Party Claim” has the meaning set forth in Section 10.1.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

9

 
“Transaction Documents” means this Agreement, [*], and any other documents, instruments, or financing statements required to be delivered 

hereunder or thereunder or in connection herewith or therewith.

“True-Up Payment” means each or any of True-Up Payment One or True-Up Payment Two. “True-Up Payments” means both of the foregoing, 

collectively.

“True-Up Payment One” has the meaning set forth in Section 4.1(c)(i).

“True-Up Payment Two” has the meaning set forth in Section 4.1(c)(ii).

“UCC” means the Uniform Commercial Code as in effect from time to time in the State of New York, provided that if, with respect to any 

financing statement or by reason of any provisions of applicable law, the perfection or the effect of perfection or non-perfection of the security interest or 
any portion thereof granted pursuant to Section 4.5 is governed by the Uniform Commercial Code as in effect in a jurisdiction of the United States other 
than the State of New York, then “UCC” means the Uniform Commercial Code as in effect from time to time in such other jurisdiction for purposes of the 
provisions of this Agreement and any financing statement relating to such perfection or effect of perfection or non-perfection.

“United States” or “U.S.” means the United States of America, including its territories and possessions.

“Voluntary Bankruptcy” means Company, pursuant to or within the meaning of any Bankruptcy Law: (a) commences a voluntary case; (b) 

consents to the entry of an order for relief against it in an involuntary case; (c) consents to the appointment of a Custodian of it or for any substantial part of 
its property; or (d) makes a general assignment for the benefit of its creditors or takes any comparable action under any non-U.S. laws relating to 
insolvency.

“Voluntary Transfer” means with respect to NovaQuest, or any of its Affiliates (to the extent relevant): (a) the sale or disposition of all or 

substantially all of the assets of such Party; (b) the sale or transfer of more than [*]) of the voting power of the outstanding voting securities of such Party 
or any Affiliate of such Party that directly or indirectly controls (as defined in the definition of Affiliate) such Party; (c) the merger or consolidation of such 
Party or any Affiliate of such Party that directly or indirectly controls (as defined in the definition of Affiliate) such Party, with or into another entity 
Person; or (d) the assignment by such Party of this Agreement or all or any portion of the rights and obligations hereunder.

“Withholding Payment” has the meaning set forth in Section 4.3(a).

ARTICLE II 

SCOPE OF AGREEMENT

2.1   General Agreement. Subject to the terms and conditions hereof, NovaQuest shall pay the Investment Amount to Company, in accordance with 
Section 3.1(a), in exchange for payments from Company as set forth in ARTICLE IV and as limited in Section 4.1(e), and Company’s other commitments 
as set forth herein.

2.2   Diligence Expenses. Without limiting NovaQuest’s right to offset its Diligence Expenses against the Investment Amount in accordance with Section 
3.1(a), Company shall pay NovaQuest’s Diligence Expenses [*]. Company shall deliver such payment in Dollars by electronic wire transfer in immediately 
available funds to the bank account designated by NovaQuest for the Diligence Expenses, unless and to the extent such amount is offset by NovaQuest in 
accordance with Section 3.1(a).

2.3   Limitations. Company accepts, acknowledges, and agrees that NovaQuest is agreeing, on the terms and conditions set forth in this Agreement, only to 
satisfy the funding obligations set forth in Section 3.1(a) and its other obligations expressly set forth herein and is not assuming any Liability of Company, 
of whatever nature, whether presently in existence or arising or asserted hereafter.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

10

 
ARTICLE III 

NOVAQUEST FUNDING; COMMERCIALIZATION

3.1   NovaQuest’s Funding Obligation.

(a)

Investment Amount. Within [*] after the Effective Date, NovaQuest shall pay Company an amount equal to Fifty Million Dollars 

($50,000,000) (the “Investment Amount”). NovaQuest may elect, in its sole discretion, to offset any unreimbursed Diligence Expenses from the 
Investment Amount. Such offset, however, shall not be construed to reduce the amount that NovaQuest has been deemed to have paid to Company under 
this Section 3.1(a).

(b)

Quarterly Reports. Beginning with the first full Fiscal Quarter that commences after the Effective Date and for each subsequent Fiscal 

Quarter during the Term, Company shall deliver a complete and accurate Quarterly Report to NovaQuest within [*] following the first Business Day of 
such Fiscal Quarter; provided that, in the event that Astellas is delayed in providing the Company with any information required to be contained in a 
Quarterly Report, the Company will notify NovaQuest of such delay in the Quarterly Report and will subsequently provide NovaQuest with the relevant 
delayed Quarterly Report information within [*] after Company receives the relevant delayed Quarterly Report information from Astellas.

(c)

Miscellaneous. The Investment Amount will be paid in Dollars by electronic wire transfer in immediately available funds to the bank 

account set forth in Exhibit E or such other account designated by Company in writing. Notwithstanding anything to the contrary herein, NovaQuest’s 
aggregate payment obligations under this Section 3.1 shall not exceed the Investment Amount.

3.2   Diligence. During the Term, Company shall use [*] to ensure that a Permitted Company is Commercializing the Product in the Territory in each 
country where the Product has received Regulatory Approval. 

ARTICLE IV 

PAYMENTS TO NOVAQUEST

4.1   Payments and Reports.

(a)

Revenue Interest Payments. Commencing on the Effective Date and continuing with respect to each Fiscal Year until the achievement 

of Investor Return Payment Satisfaction as outlined in Section 4.1(e), Company shall pay to NovaQuest a payment (each such payment, a “Revenue 
Interest Payment”) in an amount equal to: 

(i)

(ii)

(iii)

Year; plus

twenty-two and one-half percent (22.5%) of Astellas EMEA Revenue recognized during such Fiscal Year; plus

twenty-two and one-half percent (22.5%) of Astellas Japan Revenue recognized during such Fiscal Year; plus

twenty-two and one-half percent (22.5%) of any Replacement Net Sales Revenue recognized during such Fiscal 

a percentage of Astellas Other Revenue recognized during such Fiscal Year, which percentage shall be (1) from 
the Effective Date and through Fiscal Year 2027, ten percent (10%), or (2) for Fiscal Year 2028 and all Fiscal Years thereafter, twenty percent (20%); plus

(iv)

for Fiscal Years prior to 2028, ten percent (10%), or (2) for Fiscal Year 2028 and all Fiscal Years thereafter, twenty percent (20%).

(v)

a percentage of Replacement Other Revenue recognized during such Fiscal Year, which percentage shall be (1) 

[*].

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

11

 
Each Revenue Interest Payment shall be due and payable [*].

(b)

Minimum Revenue Interest Payment. If, at any time during the Term commencing on or after January 1, 2028, the Product is not 

Commercialized by a Permitted Company for any consecutive twelve (12)-month period, then notwithstanding Section 4.1(a), the Revenue Interest 
Payment owed by Company to NovaQuest for each Fiscal Year ending after the expiration of such twelve (12)-month period shall instead be the greater of: 
[*] or (ii) Ten Million Dollars ($10,000,000). For the avoidance of doubt, any payments made hereunder shall be considered a Revenue Interest Payment 
for the purposes of calculating Investor Return Payment Satisfaction.  Notwithstanding the foregoing, with respect to any Fiscal Year during the Term in 
which a Permitted Company is Commercializing the Product such that NovaQuest would receive a Revenue Interest Payment greater than Zero Dollars 
($0) under Section 4.1(a), then this Section 4.1(b) shall not be applicable to such Revenue Interest Payment.

(c)

True-Up Payments.

(i)

If, by no later than December 31, 2028, the sum of all Investor Return Payments paid to NovaQuest hereunder 
does not equal or exceed Sixty-Two Million, Five Hundred Thousand Dollars ($62,500,000), then Company shall become immediately and irrevocably 
obligated to pay NovaQuest True-Up Payment One and shall make such payment by no later than March 1, 2029. “True-Up Payment One” means an 
amount equal to the difference between: (A) Sixty-Two Million Five Hundred Thousand Dollars ($62,500,000) and (B) the sum of all Investor Return 
Payments paid to NovaQuest on or before December 31, 2028; provided that in no event may True-Up Payment One be a negative number.

(ii)

If, by no later than December 31, 2030, the sum of all Investor Return Payments paid to NovaQuest hereunder 

does not equal or exceed One Hundred Twenty-Five Million Dollars ($125,000,000), then Company shall become immediately and irrevocably obligated to 
pay NovaQuest True-Up Payment Two and shall make such payment by no later than March 1, 2031. “True-Up Payment Two” means an amount equal to 
the difference between: (A) One Hundred Twenty-Five Million Dollars ($125,000,000) and (B) the sum of all Investor Return Payments paid to NovaQuest 
on or before December 31, 2030; provided that in no event may True-Up Payment One be a negative number.

(d)

Prepayment. Notwithstanding any other provision of this Agreement, Company may prepay its obligations to NovaQuest in full at any 

time during the Term of this Agreement, without penalty. Company may exercise such prepayment option by paying NovaQuest the then-current 
Prepayment Amount and providing NovaQuest with written notice designating such payment as a prepayment pursuant to this Section 4.1(d) (such 
payment, a “Prepayment”). Company and NovaQuest agree that any Prepayment shall be deemed to be due and payable to NovaQuest upon its receipt, as 
consideration for NovaQuest’s provision of funding hereunder.

(e)

Satisfaction of Investor Return Payment Obligations; Payment Cap. Notwithstanding anything to the contrary herein, Company’s 
obligation to make any Investor Return Payments to NovaQuest will terminate upon the earliest to occur of the following (such occurrence, “Investor 
Return Payment Satisfaction”): (i) such time as the sum of all Investor Return Payments paid to NovaQuest as of a particular date of determination equals 
the Payment Cap in effect for such date of determination; or (ii) such time as NovaQuest has received a Prepayment in accordance with Section 4.1(d). For 
clarity, upon the achievement of Investor Return Payment Satisfaction, this Agreement will terminate in accordance with Section 9.2(b).

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

12

 
(f)

Payment Reports. Commencing with the Fiscal Year during which the Effective Date occurs and continuing for each Fiscal Year until 

the achievement of Investor Return Payment Satisfaction, Company shall, simultaneously with its delivery of a Revenue Interest Payment pursuant to 
Section 4.1(a) or, if no Revenue Interest Payment is due, within [*] of the end of the applicable Fiscal Year, prepare and deliver a written report to 
NovaQuest that includes (to the extent received from a Responsible Party or otherwise reasonably available to the Company) reasonably detailed 
information regarding the total monthly sales of the Product on a country-by-country basis in such Fiscal Year, including the amounts of gross sales of the 
Product per country in the Territory, and a calculation of the respective portions of Astellas EMEA Revenue, Astellas Japan Revenue, Astellas Other 
Revenue, and the applicable Revenue Interest Payment payable to NovaQuest which are attributable to each country for such Fiscal Year (including any 
foreign exchange rates employed) (such written report, a “Payment Report”); provided that, notwithstanding the foregoing, the Royalty Report for the 2022 
Royalty Dates shall be deferred and provided to NovaQuest with the Payment Report for Fiscal Year 2023. For the avoidance of doubt for each other Fiscal 
Year during the Term, Company shall provide NovaQuest with a Payment Report pursuant to this Section 4.1(f) even if no Revenue Interest Payment is 
owed for a given Fiscal Year.

4.2   NovaQuest’s Account. All payments under this Agreement to NovaQuest shall be made in Dollars by wire transfer in immediately available funds to 
such accounts as NovaQuest designates in writing from time to time.

4.3   Taxes; Withholding.

(a)

If any Governmental Authority requires Company to deduct or withhold any amount from, or NovaQuest to pay any present or future 
Tax, assessment, or other governmental charge on, any payment by Company to NovaQuest (a “Withholding Payment” ), then Company shall, in addition 
to paying NovaQuest the amount reduced by such Withholding Payment, simultaneously pay NovaQuest an additional amount such that NovaQuest 
receives the full contractual amount of the applicable payment as if no such Withholding Payment had occurred (such additional amount, the “Gross-Up 
Amount”).

(b)

Notwithstanding Section 4.3(a), if a Withholding Payment is required solely as a result of (i) a Voluntary Transfer by NovaQuest after 
the Effective Date of this Agreement or (ii) the failure to provide an IRS Form W-9 pursuant to Section 4.3(c), then Company shall not be obligated to pay 
NovaQuest the Gross-Up Amount with respect to such Withholding Payment.

(c)

NovaQuest and any permitted transferee or assignee hereunder shall deliver at the closing, and at any other times as reasonably 

requested by the Company or required by law to reduce the amount of withholding, a properly completed IRS Form W-9 certifying that NovaQuest (or 
such permitted transferee or assignee) is exempt from “backup” withholding tax.

(d)

If Company is required to make a Withholding Payment to a Governmental Authority, Company shall deliver to NovaQuest the 

original or a certified copy of a receipt issued by such Governmental Authority evidencing its payment of such Withholding Payment.

(e)

For Tax purposes, Company and NovaQuest shall treat the transaction contemplated by this Agreement as indebtedness subject to the 
rules applicable to contingent payment debt instruments under Treasury Regulation Section 1.1275-4(b).  Company shall prepare and provide NovaQuest 
with the “project payment schedule” in accordance with the requirements of Treasury Regulation Section 1.1275-4(b) and Company will reasonably 
consider any feedback with respect to the “projected payment schedule” from NovaQuest.  If there is an inquiry by any Governmental Authority of 
Company or NovaQuest related to this Section 4.3(e), the Parties shall cooperate with each other in responding to such inquiry in a commercially 
reasonable manner consistent with this Section 4.3(e).

4.4   Interest. If any payment required to be paid by Company to NovaQuest under this Agreement is not made when due, then such outstanding payment 
will accrue interest, beginning on the date when the payment was due, at an annual rate equal to [*] plus the Prime Rate, subject to any limitation under 
Applicable Law. Such rate will be compounded every [*], commencing on the date on which such payment was due. Payment of accrued interest will 
accompany payment of the outstanding payment. “Prime Rate” means the prime rate as reported in The Wall Street Journal, New York edition, on the date 
such payment is due.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

13

 
4.5   Grant of Security Interest.  

(a)

For value received and to secure the prompt and complete payment and performance of all payment obligations of Company now or 
hereafter owing to NovaQuest under Section 4.1 hereof, the Company does hereby: (i) grant to NovaQuest a security interest in and to all right, title and 
interest in, to and under the Collateral; and (ii) authorize NovaQuest, from and after the Effective Date, to file such financing statements and continuation 
statements with respect to such financing statements when applicable, in such manner and such jurisdictions as are necessary or appropriate to perfect the 
security interest granted hereunder; provided, that the description of the Collateral in such financing statements and continuation statements shall not be 
broader than the definition of the Collateral hereunder.

(b)

Subject to Section 4.5(d), Company agrees that from time to time, Company will, in a commercially reasonable manner, execute and 
deliver all further instruments and documents, and take all further actions, that NovaQuest may reasonably request and that are required in order to perfect 
and protect the security interest granted in the Collateral hereby, to create, perfect or protect the security interest purported to be granted hereby or to enable 
NovaQuest to exercise and enforce its rights and remedies hereunder with respect to any of the Collateral, including, but not limited to, entering into United 
States law governed intellectual property security agreements with respect to the Product IP Rights and filing such agreements with the United States 
Patent and Trademark Office, as necessary, [*].

(c)

Following the termination of this Agreement, upon the Company’s request, NovaQuest shall (i) file a UCC-3 termination statement 

terminating the security interest granted in this Section 4.5 and terminate any intellectual property security agreements filed with the with the United States 
Patent and Trademark Office, and (ii) execute and deliver such documents, and take any other actions, to evidence the payment in full of all obligations 
under this Agreement and the other Transaction Documents and the termination (and notice of termination) of all security interests granted under this 
Agreement or any other Transaction Document.  [*].  

(d)

Notwithstanding any provision herein to the contrary, the Company shall not be required to execute or deliver any instrument or 

document or take any further actions, in each case, with respect to any Collateral (other than the filing of a UCC-1 financing statement against the 
Company in its jurisdiction of incorporation and an intellectual property security agreement to be filed with the United States Patent and Trademark Office) 
if any of the following apply:

(i)

[*]; 

the burden or cost of obtaining a grant of a security interest therein or perfection thereof (including any burden 
resulting from a change to the ordinary course business operations of Company or from any third party consent required for any such grant or perfection) 
exceeds the practical benefit to NovaQuest afforded thereby as reasonably mutually determined by Company and NovaQuest;

(ii)

(iii)

such actions would contravene, violate, cause a breach or default under or give rise to a right of early termination 

under or require any third party consent, authorization or approval by any Person (including any Governmental Authority) that is not an Affiliate of the 
Company (other than which have already been obtained or that Company reasonably determines would not be burdensome to obtain upon NovaQuest’s 
reasonable request to obtain), any Applicable Law or contract to which the Company or any of its assets are bound (other than any contract entered into for 
purposes of contravening or avoiding the Company’s obligations hereunder), including, for the avoidance of doubt, any intercreditor agreement; or

(iv)

would result in adverse tax consequences to the Company or any of its Affiliates. 

(e)

For the avoidance of doubt, the security interest granted to NovaQuest pursuant to this Section 4.5 (and any perfection, priority or 

protection thereof) shall be subject to the terms of any [*] executed from time to time after the date hereof, and with respect to any conflict between this 
Agreement and any [*].

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

14

 
ARTICLE V 

INFORMATION RIGHTS; RECORD KEEPING

5.1   Information Rights.

(a)

In addition to Company’s other reporting and disclosure obligations contained in this Agreement, and, with respect to information 

Company has the right to receive under the Astellas Agreements and information that Company is provided under the Astellas Agreements, Company shall, 
and shall cause all other Responsible Parties to, upon NovaQuest’s reasonable request, promptly prepare and provide NovaQuest with reasonable notice 
and information regarding each of the following matters relating to the Product and to promptly respond to NovaQuest’s reasonable inquiries with respect 
thereto and promptly provide, upon NovaQuest’s reasonable request, information and documents related to each of the following matters, in each case, to 
the extent relating to, or that could be reasonably expected to materially affect, the Commercialization of the Product in the Territory:

Product;

(i)

(ii)

general Commercialization overview and updates, including any material issues regarding manufacturing of the 

finalized briefing packages and minutes from meetings with a Governmental Authority, notifications, letters, and 

other material communications with a Governmental Authority;

(iii)

(iv)

(v)

material Regulatory Filings, including any NDA;

any material actual or anticipated issues with the supply of the Product;

any matters arising from Patents Covering the Product and other intellectual property rights protecting the 

Product, including intellectual property rights owned or controlled by Third Parties, that would reasonably be expected to materially and adversely impact 
the Commercialization of the Product;

(vi)

(vii)

(viii)

any decision or anticipated decision to cease marketing, selling, or otherwise Commercializing the Product; 

receipt of Regulatory Approvals; and

each Sales Forecast to be provided pursuant to Section 5.1(b).

Notwithstanding the foregoing, Company may, at its election, deliver the information contemplated herein and therein via disclosures made pursuant to 
Company’s public reporting requirements, by delivery of summaries, reports, or presentations to NovaQuest, or by providing excerpts of materials 
presented to the Company’s board of directors or executive leadership team, provided that upon NovaQuest’s reasonable request, Company promptly shall 
provide reasonable access to any material information and documents encompassing the information provided by Company pursuant to this Section 5.1(a).

(b)

To the extent that Company is able to forecast and track, and actually does forecast and track orders for the Product in the Territory, 

Company will, on an annual basis during the Term and within [*] after approval from the Company’s board of directors, provide NovaQuest with a copy of 
Company’s good faith forecasted sales of the Product in the Territory for the then-current Fiscal Year (each such Fiscal Year forecast, a “Sales Forecast”).  
The form and format of the Sales Forecasts shall be as reasonably determined by the Company, provided, however, that each such Sales Forecast shall take 
into account any forecasts provided by Responsible Parties if such forecast is provided by any Responsible Party.  This Section 5.1(b) does not, with 
respect to obtaining information from Astellas, require Company to take any actions beyond which Company has the right to take under the Astellas 
Agreements.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

15

 
(c)

[*], upon NovaQuest’s reasonable advance request, NovaQuest shall be entitled to an update call or meeting (via teleconference or 

videoconference or at a location reasonably designated by NovaQuest) to discuss (i) the Quarterly Reports and the Payment Reports, (ii) [*], the progress of 
Commercialization efforts with respect to the Product in the Territory, (iii) [*], the status and the historical and potential performance of the Product in the 
Territory, (iv) [*], any regulatory developments with respect to any Product in the Territory; and (v) such other matters that the Parties mutually deem 
reasonably appropriate.

5.2   Company’s Record Keeping; NovaQuest’s Audit Rights.

(a)

Records. Company shall, and shall ensure that the Responsible Parties shall, consistent with GAAP or IFRS, as applicable, keep and 
maintain for a period of at least [*] from the end of any Fiscal Quarter (except as otherwise provided herein) accounts and records of all data reasonably 
required to verify:

(i)

information required to be provided to NovaQuest under this Agreement, including pursuant to Section 5.1; and

(ii)
calculation of the Revenue Interest Payments.

(A) the gross amount received by any Responsible Party from Third Parties for sales of the Product, and (B) the 

Company’s and the Responsible Parties’ recordkeeping obligations under this Section 5.2 shall survive the termination of this Agreement until the date that 
is [*] following the last day on which a payment is due under this Agreement (the “Recordkeeping Period”).

(b)

Audit. From the Effective Date until the expiration of the Recordkeeping Period, upon prior written notice to Company: (i) NovaQuest 
shall have the right to review and audit, through an independent certified public accountant selected by NovaQuest and reasonably satisfactory to Company, 
those accounts and records of Company as NovaQuest determines is reasonably necessary to verify Company’s and Responsible Parties’ compliance with 
this Agreement; and (ii) Company shall, upon the reasonable request of NovaQuest, [*] review and audit each Responsible Party, through an independent 
certified public accountant reasonably approved by NovaQuest, those accounts and records of each such Responsible Party as NovaQuest determines is 
reasonably necessary to verify such Responsible Party’s compliance with this Agreement. Such review and audits shall occur during normal business hours 
and no more than once per Fiscal Year, provided that NovaQuest shall be entitled to conduct a reasonable number of follow-up reviews and audits if 
NovaQuest finds that Company or a Responsible Party is not in material compliance with this Agreement. In addition, Company shall, upon reasonable 
request by NovaQuest (which request NovaQuest shall be permitted to make one time every [*], promptly exercise its audit rights pursuant to Section 10.5 
of the Astellas Japan Agreement or the Section of the Astellas EMEA Agreement titled “Reporting and Audit Rights,” in each case to the extent necessary 
to verify the calculations of Astellas Japan Revenue, Astellas EMEA Revenue, or Astellas Other Revenue, and shall furnish the results of such audit to 
NovaQuest. With respect to any Replacement Agreement entered into by Company that would reasonably be expected to generate Replacement Net Sales 
Revenue or Replacement Other Revenue, Company shall use reasonable efforts to ensure that such Replacement Agreement grants Company audit rights 
which are substantially similar in all material respects to Company’s audit rights pursuant to section 10.5 of the Astellas Japan Agreement or the section of 
the Astellas EMEA Agreement titled “Reporting and Audit Rights.” With respect to any such Replacement Agreement described in the foregoing sentence, 
Company shall, upon request by NovaQuest (which request NovaQuest shall be permitted to make one time every [*], promptly exercise its audit rights to 
the extent necessary to verify the calculations of Replacement Net Sales Revenue or Replacement Other Revenue and shall furnish the results of such audit 
to NovaQuest.  NovaQuest shall be solely responsible for all of the expenses of any audit conducted pursuant to this Section 5.2(b), unless the independent 
certified public accountant’s report shows, in respect of any Fiscal Year then being reviewed, an underpayment of amounts due to NovaQuest hereunder for 
such Fiscal Year by more than [*], in which case Company shall be responsible for the reasonable expenses incurred by NovaQuest for the independent 
certified public accountant’s services. If the report shows an underpayment of amounts due to NovaQuest hereunder, then Company will pay NovaQuest an 
amount equal to such underpayment, plus interest on such amounts in accordance with Section 4.4, within [*] after receipt of notice of such underpayment 
and copy of the relevant portion of the audit report. 

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

16

 
5.3   Notice of Certain Events. Company will notify NovaQuest in writing with respect to the following matters promptly upon Company’s Knowledge 
thereof (and Company shall be responsible for ensuring that each Responsible Party notifies Company of such matters upon such Responsible Party 
becoming aware thereof), in each case, to the extent relating to the Commercialization of the Product in the Territory:

(a)

(b)

(c)

(d)

(e)

Company’s or any other Responsible Party’s submission of a material Regulatory Filing for the Product, including any NDA;

Company’s or any other Responsible Party’s receipt of Regulatory Approval for the Product;

the occurrence of any Material Adverse Effect;

any decision by Company or any other Responsible Party to cease the Commercialization of the Product in the Territory;

the actual or written threat of revocation, withdrawal, suspension, cancellation, termination, or material modification of any approvals 

or authorizations, including any Regulatory Approval, from any Governmental Authority with respect to the Product in the Territory;

(f)

Company’s or, to the Knowledge of Company, any other Responsible Party’s being debarred, excluded, suspended, or otherwise 

ineligible to participate in government health care programs;

(g)

Company’s or, to the Knowledge of Company, any other Responsible Party’s becoming a party to a settlement, consent, or similar 

agreement with any Governmental Authority regarding the Product in the Territory;

(h)

Company’s or, to the Knowledge of Company, any other Responsible Party’s being charged with, or convicted of, violating any 

Applicable Law regarding the Product in the Territory;

(i)

any recall, suspension, market withdrawal, seizure, warning letter, other written communication asserting lack of compliance with any 

Applicable Law in any material respect, or any serious adverse event in each case, with respect to the Product in the Territory; and

(j)

any clinical trial of the Product being suspended, put on hold, or terminated prior to completion as a result of any action by a 

Governmental Authority, or as a result of a Responsible Party’s voluntary decision in the Territory; and

(k)

the receipt by Company or any other Responsible Party of any adverse written notice from any Governmental Authority regarding the 

approvability or approval of the Product in the Territory.

Any notice provided pursuant to this Section 5.3 shall include a reasonably detailed description of the event giving rise to the 
requirement to provide such notice, along with complete copies of all material documentation related thereto unless prohibited by Applicable Law.

(l)

Notwithstanding the foregoing, Company may, at its election, deliver the information contemplated herein and therein via disclosures made pursuant to 
Company’s public reporting requirements, by delivery of summaries, reports, or presentations to NovaQuest, or by providing excerpts of materials 
presented to Company’s board of directors or executive leadership team.

5.4   ESG Questionnaires. The Company will provide, to the Knowledge of Company and solely as permitted by Applicable Law, true and complete 
responses to any ESG Questionnaires submitted to Company by NovaQuest no more than once per each Fiscal Year during the Term. For the purposes of 
this Section 5.4 and this Agreement, “ESG Questionnaires” means any questionnaire, survey, request for information, or other similar inquiry, relating to 
environmental, social, or governance issues and Company’s policies and practices in connection therewith.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

17

 
5.5   Data Room. Within [*] after the Effective Date, Company shall deliver to NovaQuest an electronic copy of all the documents and information 
contained in the virtual online data room hosted on behalf of Company by [*] in the online workspace captioned [*] as of the Effective Date (the “Data 
Room”). 

ARTICLE VI 

CONFIDENTIAL INFORMATION

6.1   Definition of Confidential Information.

(a)

For purposes of this Agreement, the term “Confidential Information” of a Party means the terms of this Agreement and any 

information or materials furnished by or on behalf of such Party or its Affiliates to another Party or its Affiliates pursuant to this Agreement or learned 
through observation during visit(s) to any facility of the Party or its Affiliates.

(b)

Notwithstanding Section 6.1(a), the term “Confidential Information” shall not include information that:

confidentiality to or for the benefit of the disclosing Party, at the time it was disclosed to or learned by the receiving Party hereunder;

(i)

was already known to the receiving Party, other than under a legal, contractual, or fiduciary obligation of 

(ii)

(iii)

was generally available to the public at the time it was disclosed to or learned by the receiving Party hereunder;

became generally available to the public after it was disclosed to or learned by the receiving Party hereunder, 

other than through any act or omission of the receiving Party or its Affiliates or representatives in breach of this Agreement;

(iv)

was lawfully disclosed to the receiving Party, after it was disclosed to or learned by the receiving Party hereunder, 

by a Third Party that, to the receiving Party’s knowledge, was not bound by any legal, contractual, or fiduciary obligation of confidentiality to or for the 
benefit of the disclosing Party with respect to such information; or

the disclosing Party.

(v)

is independently developed by the receiving Party without the benefit or use of the Confidential Information of 

6.2   Obligations. Except as authorized in this Agreement or except upon obtaining the other Party’s prior written consent, each Party agrees that for the 
Term and for [*] thereafter, it will: 

(a)

(b)

maintain in confidence, and not disclose to any Person, the other Party’s Confidential Information;

not use the other Party’s Confidential Information for any purpose, except for performing its obligations and exercising its rights and 

remedies under this Agreement; and

(c)

protect the other Party’s Confidential Information in its possession by using substantially the same or higher degree of care that it uses 

to protect its own Confidential Information (but no less than a reasonable degree of care).

Notwithstanding anything to the contrary in this Agreement, a Party is entitled to seek injunctive relief to restrain the breach or threatened breach by the 
other Party of this ARTICLE VI without having to prove actual damages or threatened irreparable harm or post any bond. Such injunctive relief will be in 
addition to any rights and remedies available to the aggrieved Party at law, in equity, and under this Agreement for such breach or threatened breach.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

18

 
6.3   Permitted Disclosures.

(a)

Permitted Persons. A Party may disclose the other Party’s Confidential Information, without the other Party’s prior written permission, 

to:

(i)

its Affiliates and its and its Affiliates’ limited partners, members, managers, directors and individuals or bodies 

responsible for governance of receiving Party (including, with respect to NovaQuest, NovaQuest’s investment committee and limited partner advisory 
committee), banks and other actual or potential financing sources, and actual or potential permitted assignees, purchasers, transferees, or successors-in-
interest under Sections 8.2, 8.3, or 11.6 or its or their employees, agents, consultants, attorneys or accountants, in each case, who need to know such 
Confidential Information (including to provide financing to receiving Party, to assist receiving Party in evaluating or monitoring receiving Party’s interests 
in the transactions contemplated hereby, or in fulfilling its obligations or exploiting its rights hereunder (or to determine their interest in providing such 
financing or assistance)) and who are, prior to receiving such disclosure, bound by customary contractual or professional confidentiality and non-use 
obligations;

(ii)

other Persons who are (A) investors or potential investors (or advisors or fiduciaries (including trustees) or 

underwriters or placement agents to such Persons) in connection with a private placement or other equity, debt, or other investment or potential investment 
transaction in or with receiving Party (including, with respect to NovaQuest, an investment or potential investment in or with NovaQuest or a NovaQuest 
Affiliate), who need to know such Confidential Information in connection with making or monitoring such equity, debt, or other investment or potential 
investment transaction, or (B) in the case of NovaQuest, potential investment targets (provided that (1) for the purpose of this Section 6.3(a)(ii), receiving 
Party may disclose only Confidential Information of disclosing Party pertinent to the investment or potential investment transaction and may make such 
disclosures only in anticipation, and during the period, of such investment or potential investment transaction, and (2) for the purpose of clause (B) of this 
Section 6.3(a)(ii), NovaQuest may disclose the identity of Company, the Product that is the subject of this Agreement, and the fact that this Agreement 
provides for the Investor Return Payments) provided that in the case of clauses (A) and (B) of this Section 6.3(a)(ii), such Persons are, prior to receiving 
such disclosure, bound by customary contractual or professional obligations of confidentiality, nondisclosure, and nonuse; and

(iii)

officers, employees, or advisors of any Governmental Authorities for the purpose of submitting Regulatory 

Filings for the Product and obtaining or maintaining Regulatory Approval, or in connection with any routine examination of a Party by a Governmental 
Authority.

[*].

(b)

Legally Required. A Party may disclose the other Party’s Confidential Information, without the other Party’s prior written permission, 
to any Person to the extent such disclosure is necessary to comply with Applicable Law, applicable stock exchange requirements, or an order or subpoena 
from a court of competent jurisdiction. In the case of any compelled disclosure, the compelled Party, to the extent legally permissible, shall give reasonable 
advance notice to the other Party of such disclosure and, at such other Party’s reasonable request and expense, the compelled Party shall use its reasonable 
efforts to secure confidential treatment of such Confidential Information prior to its disclosure (whether through protective orders or otherwise). However, 
if a Party receives a request from an authorized representative of a U.S. or foreign tax or financial reporting authority (including the U.S. Securities and 
Exchange Commission) for a copy of this Agreement, then that Party may provide a copy of this Agreement to such authority representative without 
advance notice to, or the permission or cooperation of, the other Party, but the disclosing Party shall notify the other Party of the disclosure as soon as 
reasonably practical.

(c)

NovaQuest Consent. Notwithstanding anything to the contrary in this Section 6.3, Company shall not, and Company agrees to ensure 
that Responsible Parties shall not, without the prior written consent of NovaQuest (not to be unreasonably, withheld, conditioned or delayed), disclose to a 
Third Party any: [*].

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

19

 
6.4   Terms of Agreement. The Parties agree that they will each treat the existence, contents and terms of this Agreement as confidential, and neither Party 
shall make any press release or other disclosure to the general public that discloses or otherwise concerns this Agreement or any terms hereof, without the 
prior written consent of the other Party (not to be unreasonably, withheld, conditioned or delayed), except to the extent permitted under Section 6.3 or as 
otherwise permitted in accordance with this Section 6.4 or Section 6.5. Notwithstanding anything to the contrary in this Agreement, NovaQuest 
acknowledges and agrees that it will be necessary for Company to file this Agreement with the SEC and to make other public disclosures regarding the 
terms of this Agreement and payments made under this Agreement in its reports filed with the SEC and consents to such public filing and the making of 
such public disclosures, and Company agrees that it will provide NovaQuest a reasonable opportunity to review and comment on any proposed redactions 
to the copy of this Agreement to be filed with the SEC, as well as on such other public disclosures made by Company relating to NovaQuest or this 
Agreement or the transactions contemplated thereby, which comments Company shall consider in good faith, provided that Company shall not be required 
to provide NovaQuest the opportunity to review and comment on any disclosure substantively identical to any disclosure previously reviewed and 
commented upon by NovaQuest. For purposes of clarity, Company shall not be required to provide NovaQuest the opportunity to review and comment on 
any disclosure substantively identical to any disclosure previously reviewed and commented upon by NovaQuest and each Party is free to republish or 
discuss with Third Parties the information regarding the Agreement and the Parties’ relationship disclosed in such securities filings and any other 
authorized public announcements.

6.5   Use of Names. Neither Party shall mention or otherwise use the name, insignia, symbol, trademark, trade name or logotype of the other Party or its 
Affiliates (or any abbreviation or adaptation thereof) in any publication, press release, publicly available promotional material, or other form of publicity 
without the prior written approval of such other Party in each instance. Notwithstanding the foregoing, the restrictions imposed by this Section 6.5 shall not 
prohibit a Party from making any disclosure identifying any such Person to the extent required by Applicable Law or the rules of a stock exchange on 
which the securities of the disclosing Party are listed (or to which an application for listing has been submitted) or to the extent that such information is 
already public information. Further, notwithstanding the foregoing, the Parties agree that each Party shall have the right to publicly disclose the existence of 
this Agreement as a revenue interest financing agreement with revenue interest payments and true-up payments, Company’s prepayment option, the name 
of the Parties, the name and a description of the Product, and the amount of the Total Funding Commitment.

ARTICLE VII 

REPRESENTATIONS AND WARRANTIES; LIMITATION OF LIABILITY

7.1   Company’s Representations and Warranties. Except as set forth in the applicable Schedules attached hereto, Company represents and warrants to 
NovaQuest as of the Effective Date as follows:

(a)

Organization. Company is a corporation duly incorporated, validly existing, and in good standing under the laws of the State of 

Delaware and is qualified to do business and legally permitted to perform its obligations under this Agreement in each jurisdiction where failure to be so 
qualified could result in a Material Adverse Effect.

(b)

Authorization. Company has all necessary corporate or other power, right, and authority to carry on its business as it is presently 

carried on by Company and as contemplated by this Agreement, to enter into, to execute and deliver this Agreement, and to perform all of the covenants, 
agreements, and obligations to be performed by Company hereunder. This Agreement has been duly executed and delivered by Company and, when 
executed and delivered by NovaQuest, constitutes Company’s valid and binding obligation, enforceable against Company in accordance with its terms, 
subject to bankruptcy, insolvency, reorganization, or similar laws affecting the rights of creditors generally and equitable principles.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

20

 
(c)

No Conflicts. The execution and delivery of this Agreement by Company and the performance by Company of its obligations 

hereunder does not and will not: (i) violate any provision of the organizational documents of Company; (ii) conflict with or violate any Applicable Law that 
applies to Company or its assets or properties; (iii) require any permit, authorization, consent, approval, exemption, or other action by, notice to, or filing 
with any entity or Governmental Authority (other than as expressly contemplated hereby); (iv) violate, conflict with, result in a material breach of, or 
constitute (with or without notice or lapse of time or both) a material default under, or an event that would give rise to any right of notice, modification, 
acceleration, payment, cancellation, or termination under, or in any manner release any party thereto from any obligation under, any permit or contract to 
which Company or any Affiliate of Company is a party or by which any of its properties or assets are bound; or (v) except as provided in Section 4.5, result 
in the creation or imposition of any Encumbrance on any part of the Collateral of Company (other than Permitted Encumbrances)[*].

(d)

No Consent. Except for (i) any consents required to be provided from Astellas under the Astellas Agreements, (ii) any filings 

necessary to perfect the security interest granted in favor of NovaQuest under Section 4.5 and (iii) other consents which have already been obtained, no 
other consent, approval, license, order, authorization, registration, declaration, or filing with or of any Person, other than Regulatory Approvals required 
with respect to the Product, is required by Company in connection with the execution and delivery by Company of this Agreement, the performance by 
Company of its obligations under this Agreement, or the consummation of any of the transactions contemplated hereby[*].

(e)

Product Property. A list of the Patents owned or controlled by Company that Cover the Product in the Territory as currently 

Commercialized is set forth in Schedule 7.1(e) (the “Product Patents”). To the Knowledge of Company, all of the Product Patents are in full force and 
effect and have not lapsed, expired, or otherwise terminated. Except as set forth in Schedule 7.1(e), no Person has made a written claim to Company or, to 
the Knowledge of Company, to any other Party, to be an inventor under any of the Product Patents who is not a named inventor thereof. Company has good 
and valid title to and solely owns all right, title, and interest in and to the Product Patents subject to Permitted Encumbrances and the License. To 
Company’s Knowledge, the Product Patents are all of the Patents reasonably necessary for the Commercialization of the Product in Territory as currently 
Commercialized or contemplated to be Commercialized.  [*].

(f)

Litigation. Except as set forth in Schedule 7.1(f), there is no action, suit, claim, proceeding, interference, reexamination, opposition, 

inter partes or post-grant review, or investigation pending or, to the Knowledge of Company, threatened against Company, any other Responsible Party, or 
any of its or their licensors, at law or in equity, in an arbitration proceeding to which Company, any other Responsible Party, or any of its or their licensors 
is a party, or Governmental Authority inquiry pending or, to the Knowledge of Company, threatened against Company, any other Responsible Party, or any 
of its or their licensors, that, in each case, if adversely determined, would: (i) question or defeat the validity or enforceability of any Product IP Rights; (ii) 
prevent, interfere with, or delay the consummation of the transactions contemplated by this Agreement; (iii) otherwise adversely affect any Product IP 
Rights or NovaQuest’s rights under this Agreement; or (iv) have, or reasonably be expected to result in, a Material Adverse Effect.

(g)

Infringement and Intellectual Property. To the Knowledge of Company, the making, use, sale, offer for sale, or import of the Product 

as currently Commercialized or contemplated to be Commercialized by any Responsible Party, Licensees, or sublicensees in the Territory does not, and will 
not, during the Term, infringe any issued Patent of any Third Party or misappropriate or make any unauthorized use of any other intellectual property or 
proprietary asset of any Third Party. To the Knowledge of Company, the Product Patents are, or will be upon issuance, valid and enforceable and no Third 
Party is infringing, misappropriating, or making any unauthorized use of a Product Patent or Product Know-How. None of the Product Patents or Product 
Know-How is subject to any outstanding decree, order, judgment, or stipulation restricting in any manner the use or licensing thereof by Company.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

21

 
(h)

Material Contracts. All Material Contracts to which Company or its Affiliates are a party are listed in Schedule 7.1(h) and are 

enforceable and in full force and effect, except as such enforceability may be limited due to applicable Bankruptcy Laws affecting the enforcement of 
creditors’ rights generally, and general principles of equity. Company has provided correct and complete copies of all such Material Contracts to 
NovaQuest. Each Responsible Party is in compliance with and has not materially breached, violated, or defaulted under, or received written notice that it 
has materially breached, violated, or defaulted under any of the terms or conditions of any such Material Contract. Company is not aware of any event that 
has occurred or circumstance or condition that exists that would, or would reasonably be expected to, constitute such a breach, violation, or default with the 
lapse of time, giving of notice, or both. To the Knowledge of Company, the counterparty of each Material Contract is in compliance in all material respects 
with the terms and conditions of such Material Contract. Except as set forth in Schedule 7.1(h), Company has not granted an Encumbrance on any of its 
Product IP Rights, on the Revenue Interests, or on any of Company’s payments to NovaQuest under this Agreement (in each case, solely to the extent 
constituting Collateral), except Permitted Encumbrances.

(i)

Certain Regulatory Matters.

(i)

To the Company’s Knowledge, a Responsible Party holds all or is seeking the applicable approvals and 

authorizations from Governmental Authorities necessary for Company or, to the Knowledge of Company, such Responsible Party to conduct its business in 
the manner in which such business is being conducted and as contemplated hereunder with respect to the Product in the Territory, including the 
manufacture, testing, and Commercialization of the Product. To the Knowledge of the Company, the countries in which a Responsible Party holds an 
applicable approval and authorization for the Product in the Territory is as set forth on Schedule 7.1(i) and all such issued approvals and authorizations are 
in good standing and in full force and effect. Company or, to the Knowledge of Company, a Responsible Party has not received any written notice or any 
other communication from any Governmental Authority regarding any actual or possible revocation, withdrawal, suspension, cancellation, termination, or 
material modification of any such issued or pending approvals or authorizations for the Product in the Territory.

(ii)

Company has not, and, to the Knowledge of Company, no other Responsible Party has, with respect to the 

Product in the Territory, knowingly made any untrue statement of a material fact or fraudulent statement to any Governmental Authority, failed to disclose a 
material fact required to be disclosed to any Governmental Authority, or committed an act, made a statement or failed to make a statement, that provides or 
could reasonably be expected to provide a basis for the FDA or other Governmental Authority to invoke the FDA’s policy respecting “Fraud, Untrue 
Statements of Material Facts, Bribery, and Illegal Gratuities” set forth in 56 Fed. Reg. 46191 (September 10, 1991) or any similar policy of any other 
Governmental Authority. 

(iii)

Company is not and has never been, and, to the Knowledge of Company, no Responsible Party is or has ever 

been: (A) debarred by a Governmental Authority; (B) a party to a settlement agreement, consent decree, or similar agreement with a Governmental 
Authority regarding the Product in the Territory; or (C) charged with, or convicted of, violating Applicable Law regarding the Product in the Territory.

(iv)

To the Knowledge of Company, the Product has not been the subject of or subject to (as applicable) any recall, 

suspension, market withdrawal, seizure, warning letter, other written communication asserting lack of compliance with any Applicable Law in any material 
respect in the Territory. No clinical trial of the Product in the Territory has been suspended, put on hold, or terminated prior to completion as a result of any 
action by any Governmental Authority or voluntarily. 

(v)

Neither Company nor its Affiliates have, and, to the Knowledge of Company, no other Responsible Party or 

exclusive licensor of any Product Patent, has received any adverse written notice from any Governmental Authority regarding the approvability or approval 
of the Product in the Territory.

(j)

Financial Condition. All financial statements for Company delivered to NovaQuest fairly present, in conformity with GAAP or IFRS, 
as applicable, in all material respects Company’s financial condition and Company’s results of operations. There has not been any material deterioration in 
Company’s financial condition since the date of the most recent financial statements delivered to NovaQuest.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

22

 
(k)

Supply. The Company has on hand or has made adequate provisions to secure sufficient quantities of Product to meet its obligations 

under the Astellas Agreements. The Company has on hand or has made adequate provisions to secure sufficient quantities of Product to support the 
Commercialization of the Product in the Territory.

(l)

Lien Representations and Warranties. The Company’s exact legal name is, and has been since its incorporation, “FibroGen, Inc.” The 

Company is, and has been since its incorporation, incorporated in the State of Delaware.

(m)

Taxes. Company and its subsidiaries have: (i) filed all federal and state income Tax returns and other material Tax returns that they are 

required to file and (ii) duly paid all federal and state income Taxes and other material Taxes or installments thereof that they are required to pay, except 
Taxes being contested in good faith by appropriate proceedings and for which Company and its subsidiaries maintain adequate reserves in accordance with 
GAAP.;  With respect to Company and its subsidiaries, there are no proposed or pending Tax assessments, deficiencies, audits, or other proceedings that 
have had, or could reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect.

(n)

Brokers’ Fees. Except for Morgan Stanley & Co. LLC, there is no investment banker, broker, finder, financial advisor, or other 

intermediary who has been retained by or is authorized to act on behalf of Company who might be entitled to any fee or commission in connection with the 
transactions contemplated by the Transaction Documents.

(o)

Ownership. Company is the exclusive owner of the entire right, title (legal and equitable), and interest in, to, and under the Revenue 

Interests, and has good and valid title thereto.

(p)

Solvency. Upon consummation of the transactions contemplated by the Transaction Documents and the application of the proceeds 
therefrom: (i) the fair saleable value of Company’s assets (on a consolidated basis) will be greater than the sum of its Indebtedness, liabilities and other 
obligations, including contingent liabilities; (ii) the present fair saleable value of Company’s assets (on a consolidated basis) will be greater than the amount 
that would be required to pay its probable liabilities on its existing Indebtedness, liabilities and other obligations, including contingent liabilities, as they 
become absolute and matured; (iii) Company will be able to realize upon its assets (on a consolidated basis) and pay its Indebtedness, liabilities and other 
obligations, including contingent obligations, as they mature; (iv) Company (on a consolidated basis) will not be rendered insolvent (within the meaning of 
any applicable law or otherwise), will not have unreasonably small capital with which to engage in its business and will not be unable to pay its 
Indebtedness as it matures; and (v) Company will not have become subject to any Voluntary Bankruptcy or Involuntary Bankruptcy. No step has been taken 
by Company or, to the Knowledge of Company, any other Person, to make Company subject to a Voluntary Bankruptcy or Involuntary Bankruptcy.

(q)

Full Disclosure. With respect to the Product in the Territory, the Data Room contains true and complete copies of all agreements, 

contracts, documents, or other information referred to in this Agreement or that have been requested by NovaQuest, in each case, that has not been publicly 
disclosed by the Company. No representation or warranty or other statement made by Company in this Agreement, the Exhibits, the Schedules, any 
supplements, attachments, or annexes to the Exhibits or Schedules, or any certificates delivered in connection with the transactions contemplated in this 
Agreement contains any untrue statement or omits to state a material fact necessary to make any of them, in light of the circumstances in which it was 
made, not misleading. To the Knowledge of Company, there is no fact, event, or condition that has specific application to Company and that materially 
adversely affects the Product that has not been set forth in this Agreement, the Exhibits, and the Schedules hereto.

7.2   NovaQuest’s Representations and Warranties. NovaQuest represents, warrants, and covenants to Company as of the Effective Date, as follows:

(a)

Organization. NovaQuest is a Delaware limited partnership duly organized, validly existing and in good standing under the laws of the 

jurisdiction of its organization.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

23

 
(b)

Authorization. NovaQuest has all necessary power, right, and authority to carry on its business as it is presently carried on by 

NovaQuest, to enter into, execute, and deliver this Agreement and perform all of the covenants, agreements, and obligations to be performed by NovaQuest 
hereunder. This Agreement has been duly executed and delivered by NovaQuest and constitutes, when executed and delivered by Company, NovaQuest’s 
valid and binding obligation, enforceable against NovaQuest in accordance with its terms, subject to bankruptcy, insolvency, reorganization, or similar laws 
affecting the rights of creditors generally and equitable principles.

(c)

No Conflict. Neither the execution and delivery of this Agreement nor the performance or consummation of it or the transactions 

contemplated hereby will: (i) conflict with any Applicable Law; (ii) in any material respect, violate, conflict with, result in a material breach of, or 
constitute a material default under any material contract, agreement, commitment, or instrument to which NovaQuest is a party or by which NovaQuest or 
any of its assets are bound or committed; or (iii) violate the applicable formation documents for NovaQuest.

(d)

No Consent. No consent, approval, license, order or authorization, registration, declaration, or filing with or of any Person is required 

by NovaQuest in connection with the execution and delivery by NovaQuest of this Agreement, the performance by it of its obligations under this 
Agreement, or the consummation by it of any of the transactions contemplated hereby or thereby.

(e)

Litigation. There is no action, suit, claim, proceeding, or investigation pending or, to the knowledge of NovaQuest, which, for the 

purpose of this Section 7.2(e) means the actual knowledge of Jacob Comer, threatened against NovaQuest or any of its Affiliates, at law or in equity, in an 
arbitration proceeding to which NovaQuest or any of its Affiliates is a party, or pursuant to the procedures of a Governmental Authority having jurisdiction 
over NovaQuest or its Affiliates, that, if adversely determined, would: (i) prevent the consummation of the transactions contemplated by this Agreement; or 
(ii) otherwise materially adversely affect Company’s rights under this Agreement.

(f)

Financing. NovaQuest has the contractual right to call, from amounts contractually committed by its investors, sufficient cash to pay 

the Investment Amount in accordance with this Agreement. NovaQuest acknowledges that its obligations under this Agreement are not contingent on 
obtaining financing.

7.3    [*]. 

8.1   Notifications.

ARTICLE VIII 

COVENANTS

(a)

Defaults, Termination and Litigation.

(i)

Company shall promptly upon obtaining Knowledge thereof notify NovaQuest in writing and with reasonable 

detail of any actual or threatened (or any receipt of notice of any actual or threatened): (A) default or material breach by Company or the counterparty 
under any Material Contract, (B) default or breach by Company or Astellas under the Astellas Agreements if such default or breach would reasonably be 
expected to have a material adverse effect on the amount of the Revenue Interest Payments; [*].  For avoidance of doubt, as this section relates to the 
Astellas Agreements, such notification shall be limited to information Company has the right to receive under the Astellas Agreements or information of 
which the Company has Knowledge.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

24

 
(ii)

Company shall promptly upon obtaining Knowledge thereof notify NovaQuest in writing and with reasonable 

detail of the actual or threatened commencement of (or receipt of notice of the actual or threatened commencement of) any dispute, claim, suit, litigation, 
injunction, or arbitration proceeding related to the Product, [*], or a Material Contract, including those disputes, claims, suits, litigation, or arbitration 
proceedings alleging a Third Party’s infringement or misappropriation of any of the Product IP Rights owned or licensed by a Responsible Party and those 
alleging a Responsible Party’s (or any of their respective Affiliates’, licensees’, or sublicensees’) infringement or misappropriation of a Third Party’s 
intellectual property in the making, use, sale, offer for sale, or importation of the Product. Each such notification shall contain a reasonably detailed 
summary of the event described therein. At the request of NovaQuest, Company shall promptly discuss with NovaQuest, or provide in writing to 
NovaQuest, full particulars of the applicable matter.  For avoidance of doubt, as this section relates to the Astellas Agreements, such notification shall be 
limited to information Company has the right to receive under the Astellas Agreements or information of which the Company has Knowledge.

(b)

Intellectual Property Updates.  Company shall keep NovaQuest reasonably informed, in accordance with its obligations under 

ARTICLE V, with regard to all material developments in the status, validity, prosecution efforts, or change thereto, of any of the Product Patents in the 
Territory owned, licensed, or sublicensed by a Responsible Party, in each case to the extent Company has Knowledge thereof. For avoidance of doubt, as 
this section relates to the Astellas Agreements, such notification shall be limited to information Company has the right to receive under the Astellas 
Agreements or information of which the Company has Knowledge.

8.2   No Disposition of Rights. Notwithstanding anything to the contrary herein, but without limiting Company’s obligations under Section 8.6(d), without 
NovaQuest’s prior written consent (not to be unreasonably, withheld, conditioned or delayed), Company shall not (and Company shall ensure that each of 
its Affiliates does not) Encumber any: (a) Revenue Interest Payments or (b) Product IP Rights, in each case, solely to the extent constituting Collateral, 
other than Permitted Encumbrances.

8.3   Event of Default.

(a)

The Company shall notify NovaQuest in writing as soon as possible, and in any event within [*] following the occurrence of any 

Default or Event of Default during the Term, identifying the nature of such Default or Event of Default and whether or not such Default or Event of Default 
is in respect of, or is, a Bankruptcy Event of Default. [*] Company shall pay to NovaQuest, by wire transfer of immediately available funds in Dollars, [*].

(b)

Subject to the terms and conditions of [*], if an Event of Default has occurred and is continuing, NovaQuest may, without further 

notice to Company, exercise all remedies available at law or in equity in respect of the Collateral, including directing Company and its Affiliates to 
assemble and deliver the Collateral as directed by NovaQuest, notifying any Third Party holding such Collateral (or portion thereof) of NovaQuest’s rights 
in such Collateral (or portion) and directing such Third Party to transfer such Collateral or make payments in respect thereof to NovaQuest (and Company 
hereby consents to such transfer or payment).

8.4   Change of Control of Company. In the event of a Change of Control of Company, at Company’s option, Company shall either: (a) cause its 
obligations under this Agreement to be assumed by the Acquiring Party if all of the following conditions have been met (i) NovaQuest has been provided 
with a true, complete, and accurate copy of the primary definitive agreement (and any ancillary documents reasonably required for a complete 
understanding thereof) relating to the Change of Control (subject to redaction and omission to the same extent as the publicly-filed version of such 
agreement), (ii) solely with respect to a Change of Control in which the Acquiring Party is not a Permitted Company, NovaQuest has provided its prior 
written consent to the Change of Control, which consent may not be unreasonably withheld, conditioned, or delayed, and (iii) the Acquiring Party has 
agreed in writing, in form and substance reasonably acceptable to NovaQuest, to assume all of Company’s obligations under this Agreement; or (b) elect to 
prepay its obligations to NovaQuest in full pursuant to Section 4.1(d); provided that, this Section 8.4 shall not apply in the event a Change of Control 
pursuant to subsection (d) of the definition of Change of Control occurs; provided further, however, that Company shall provide notice promptly upon such 
occurrence.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

25

 
8.5   Company IP Obligations. Company shall use [*] to (and shall cause each Responsible Party to):

(a)

prosecute and maintain in full force and effect all Product Patents in the Territory owned or controlled by it on or after the Effective 

Date and all Regulatory Approvals related to the Product in the Territory;

(b)

maintain, keep in full force and effect, and seek available patent term extensions for any such Product Patents;

(c)
any such Product Patents;

defend any challenge to the validity, patentability, enforceability, or non-infringement of any such Product Patents or any opposition to 

(d)

if a Third Party is infringing such Product Patents, cause such infringement to cease, including by initiating legal proceedings against 

any Third-Party infringer as necessary; 

(e)

promptly provide NovaQuest with written notice of any (i) action or settlement discussions relating to any alleged, actual, or potential 

infringement of Product Patents to the extent reasonably necessary to Commercialize the Product in the Territory, and (ii) damages award or settlement 
with respect thereto; and

(f)

maintain all Product Know-How in confidence.

This Section 8.5 does not require Company to take any actions beyond which Company has the right to take under the Astellas Agreements in effect as of 
the Effective Date.

8.6   Additional Covenants and Agreements of Company.

(a)

Compliance with Law. With respect to the performance of this Agreement and the activities contemplated by this Agreement, 

Company shall comply, and shall cause each Responsible Party to comply, with all Applicable Laws.

(b)

Noncontravention. Except as set forth in [*] or as otherwise set forth in this Agreement, during the Term, Company shall not grant any 

right to any Affiliate or Third Party that would conflict with the rights granted to NovaQuest hereunder or enter into any agreement that would impair 
Company’s ability to perform its obligations under this Agreement.

(c)

Material Contracts and Licenses. Company shall comply with all terms and conditions of, and fulfill all of its obligations under, all of 

the Material Contracts, except for such noncompliance that would not reasonably be expected to result in a Material Adverse Effect. Company shall use [*] 
to enforce against the other party(ies) to each Material Contract all material terms and conditions thereunder, except where the failure of the other party(ies) 
to perform would not reasonably be expected to have a Material Adverse Effect. Company shall ensure that all Licenses contain provisions that require the 
Licensees to notify Company of any Material Adverse Effect and that allow Company to share information pertaining to the Commercialization of the 
Product to NovaQuest as contemplated by this Agreement.  [*].

(d)

Astellas Agreements. 

(i)

Without limiting any of Company’s other obligations under this Agreement, Company shall comply with all 

material terms and conditions of, and fulfill all of its material obligations under, the Astellas Agreements. Company may not materially amend either of the 
Astellas Agreements, waive any material term of either of the Astellas Agreements, or terminate either of the Astellas Agreements without NovaQuest’s 
prior written consent (not to be unreasonably withheld, conditioned or delayed).  Company shall use [*] enforce all terms of the Astellas Agreements that, 
individually or collectively, would reasonably be expected to have a material adverse impact on the amount or timing of any payment to NovaQuest under 
this Agreement and exercise all of its right and remedies at law or in equity in the event of any breach of either of the Astellas Agreements by Astellas with 
respect to any such terms.  

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

26

 
(ii)

Promptly after receiving notice from Astellas, or any other Person (A) terminating an Astellas Agreement (in 

whole or in part); (B) alleging any breach of or material default under an Astellas Agreement by Company; or (C) asserting the existence of any facts or 
circumstances that Company reasonably expects to give rise to an Event of Default, Company shall, in each case ((A) through (C)), (X) promptly give a 
written notice to NovaQuest describing in reasonable detail the relevant breach, default, facts, circumstances, or termination event, including a copy of any 
written notice received from Astellas or the other relevant Person, and, in the case of any breach, default, or alleged breach or default by Company, 
describing in reasonable detail any corrective action Company proposes to take, and (Y) in the case of any breach, default, alleged breach or default by 
Company, use its best efforts to promptly cure such breach or default and give written notice to NovaQuest upon curing such breach or default.

(iii)

Promptly after Company becomes aware of a breach of, default under, or an alleged breach of or default under, an 

Astellas Agreement by Astellas or any other Person, including, for the avoidance of doubt, by Company or an Affiliate of Company (each, a “Defaulting 
Party”), or of the existence of any facts, circumstances, or events that, alone or together with other facts, circumstances, or events, Company reasonably 
expects (with or without the giving of notice or passage of time, or both) to give rise to a breach of or default under an Astellas Agreement by a Defaulting 
Party or the right to terminate an Astellas Agreement (in whole or in part) by Company, in each case, Company shall promptly (but in any event within [*] 
give a written notice to NovaQuest describing in reasonable detail the relevant breach, default, or termination event.

(iv)

Company shall, at NovaQuest’s request and expense, make available its relevant records and personnel to 

NovaQuest in connection with any prosecution of litigation by Company or NovaQuest against any party to the Astellas Agreements to enforce any of 
Company’s rights under the Astellas Agreements, and provide reasonable assistance and authority to file and bring such litigation, including, if required to 
bring such litigation, being joined as a party or plaintiff. All reasonable and documented out-of-pocket Third-Party expenses of Company (including 
reasonable and documented attorneys’ fees) incurred pursuant to this Section 8.6(d)(iv) shall be reimbursed by NovaQuest.

ARTICLE IX 

TERM AND TERMINATION

9.1   Term of Agreement. The term of this Agreement shall commence as of the Effective Date and continue until terminated in accordance with this 
ARTICLE IX (the “Term”).

9.2   Termination.

(a)

(b)

(c)

Mutual Termination. This Agreement may be terminated by mutual written agreement of Company and NovaQuest.

Automatic Termination. This Agreement shall automatically terminate upon the achievement of Investor Return Payment Satisfaction.

Termination for Material Breach. NovaQuest may terminate this Agreement in the event of an Event of Default or material breach of 

this Agreement by Company, provided that Company has received written notice from NovaQuest of such breach, specifying in reasonable detail the 
particulars of the alleged breach and such breach has not been cured within [*] after the date of the relevant notice. NovaQuest will have the right to pursue 
remedies it may have at law or equity for such breach, including the right to seek damages from Company. For the avoidance of doubt, a material breach of 
this Agreement by Company will include (but not be limited to) the occurrence of any of the following events, actions or omissions:

between the Parties contemplated by this Agreement;

(i)

Company materially breaches any representation or warranty under this Agreement or under any other agreement 

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

27

 
(ii)

Company materially breaches any agreement, covenant, or obligation in this Agreement or under any other 

agreement between the Parties contemplated by this Agreement, or a Responsible Party other than Company materially breaches any agreement, covenant, 
or obligation in this Agreement applicable to Responsible Parties.

(d)

Termination for Bankruptcy. NovaQuest may terminate this Agreement in its entirety upon written notice to Company in the event of 

any Bankruptcy Event of Default.

9.3   Effects of Termination. Expiration or termination of this Agreement for any reason will not release either Party from any obligation or liability 
which, at the time of such expiration or termination, has already accrued to the other Party or which is attributable to a period prior to such expiration or 
termination.

9.4   Survival. Notwithstanding anything to the contrary contained in this Agreement, ARTICLE IV (to the extent payment of any Investor Return 
Payments are contemplated following such termination), Section 5.2 (for the duration of the Recordkeeping Period), ARTICLE VI, ARTICLE VII, Section 
9.3, this Section 9.4, ARTICLE X, and ARTICLE XI shall survive the termination of this Agreement for any reason.

ARTICLE X 

INDEMNIFICATION

10.1   Company’s Indemnification Obligations. Company hereby agrees to indemnify, defend, hold harmless, and reimburse NovaQuest and its Affiliates 
and their respective managers, directors, officers, employees, agents, and its and their respective successors, heirs, and assigns (collectively, the 
“NovaQuest Indemnitees”) from and against any losses, costs, claims, damages, Liabilities, or expenses (including reasonable attorneys’ and professional 
fees and other expenses of litigation) (each, a “Loss” and collectively, “Losses”) actually sustained or incurred by NovaQuest Indemnitees arising out of 
claims, suits, actions, or demands, in each case brought by a Third Party, or settlements or judgments arising therefrom (including personal injury, products 
liability, and intellectual property infringement or misappropriation claims) (each a “Third-Party Claim”) as a result or arising out of:

(a)

a Responsible Party’s, or its or their respective agent’s or contractor’s actions or inactions in connection with the Development, 

promotion, marketing, handling, manufacture, Commercialization, packaging, labeling, storage, distribution, pricing, reimbursement, transport, use, sale, or 
other disposition of the Product; 

(b)

any breach by Company of a representation or warranty of Company contained in this Agreement or in any other agreement between 

the Parties contemplated by this Agreement or the breach or default by a Responsible Party of any covenant, agreement, or obligation of Company 
contained in this Agreement or in any other agreement between the Parties contemplated by this Agreement;

(c)

(d)

a Responsible Party’s failure to comply with Applicable Law or GxP; or

[*] recklessness, or intentional wrongful acts or omissions related to this Agreement of a Responsible Party, or contractors or any of 

their respective directors, employees, or agents.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

28

 
10.2   Procedures.

(a)

Notice. If one or more NovaQuest Indemnitees seek indemnification (each, an “Indemnified Party”) under Section 10.1, then 

NovaQuest shall give prompt written notice to Company of the assertion of any Third‑Party Claim in respect of which indemnity may be sought hereunder. 
Such notice shall include a description of the Third‑Party Claim, the nature and amount of the applicable Loss, to the extent known at such time, and 
NovaQuest’s decision with respect to whether Company will assume the defense of the Third‑Party Claim. The failure NovaQuest to notify Company on a 
timely basis or provide such information as set forth above will not relieve Company of any liability that it may have to an Indemnified Party unless 
Company demonstrates that Company’s defense of such action is materially prejudiced by NovaQuest’s failure to give such notice and then solely to the 
extent thereof. The Indemnified Party shall provide Company with complete and correct copies of reasonably relevant papers and official documents 
received from or on behalf of the Third Party asserting the Third-Party Claim in connection with any Third-Party Claims for which indemnity is sought 
hereunder and such other information with respect thereto as Company may reasonably request. The Parties shall keep each other reasonably informed of 
any facts or circumstances that may be of material relevance in connection with the Loss for which indemnification is sought.

(b)

Appointment of Counsel. If NovaQuest elects to have Company assume the defense of any Third‑Party Claim for which 

indemnification is sought hereunder, then Company will promptly appoint a lead counsel in the defense of such Third‑Party Claim any legal counsel 
selected by Company that is reasonably acceptable to the Indemnified Party.

(c)

Right to Participate in Defense. Without limiting Section 10.2(b), any Indemnified Party shall be entitled to participate in the defense 

of such Third‑Party Claim assumed by Company and to employ counsel of its choice for such purpose. However, such employment shall be at the 
Indemnified Party’s own expense unless: (i) the employment thereof has been specifically authorized by Company in writing; (ii) Company has failed to 
assume the defense, diligently defend the claim, and employ counsel in accordance with Section 10.2(b) (in which case the Indemnified Party may control 
the defense); or (iii) the interests of the Indemnified Party and Company with respect to such Third‑Party Claim are sufficiently adverse to prohibit the 
representation by the same counsel of both Parties under Applicable Laws, ethical rules, or equitable principles, in which case such employment shall be at 
the expense of Company.

(d)

Settlement. With respect to the defense of any Third‑Party Claim assumed by Company, Company will only have the right to consent 

to the entry of any judgment or enter into any settlement with respect to such Third‑Party Claim upon the prior written consent of the Indemnified Party 
(not to be unreasonably, withheld, conditioned or delayed).

(e)

Cooperation. With respect to the defense of any Third‑Party Claim for which indemnification is sought and for which NovaQuest 

elects the defense thereof to be assumed by Company, the Indemnified Party shall reasonably cooperate in the defense or prosecution thereof, and Company 
shall reimburse the Indemnified Party for all its reasonable out‑of‑pocket expenses in connection therewith. In the event NovaQuest elects not to have 
Company assume the defense of any Third‑Party Claim for which indemnification is sought, then Company shall cooperate with the Indemnified Party in 
the defense or prosecution thereof, including by furnishing such records, information, and testimony, providing such witnesses and attending such 
conferences, discovery proceedings, hearings, trials, and appeals as may be reasonably requested in connection therewith. Such cooperation shall include 
access during normal business hours afforded to the Indemnified Party to, and reasonable retention by Company of, records and information that are 
reasonably relevant to such Third‑Party Claim, and making Company employees and agents available on a mutually convenient basis to provide additional 
information and explanation of any material provided hereunder.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

29

 
(f)

NovaQuest Indemnified Party’s Defense of Third‑Party Claims. If either: (i) Company fails to timely (and in any event within [*] 

assume and diligently conduct the defense of any Third‑Party Claim upon NovaQuest’s election pursuant to Section 10.2(a); or (ii) NovaQuest elects not to 
have Company assume the defense of a Third‑Party Claim, then the Indemnified Party may assume the defense of, and settle, such Third‑Party Claim with 
counsel of its own choice and on such terms as it deems appropriate, without any obligation to obtain the consent of Company, at Company’s expense.

(g)

Limitations.  The Company’s obligations pursuant to this ARTICLE X shall not apply to the extent such Third-Party Claims result 

from gross negligence or willful misconduct by any of the Indemnified Parties. 

ARTICLE XI 

MISCELLANEOUS

11.1   Governing Law; Waiver of Jury Trial. This Agreement shall be governed by and construed, interpreted, and enforced in accordance with the laws 
of the State of New York, as applied to agreements executed and performed entirely in the State of New York, without giving effect to the principles of 
conflicts of law thereof. EACH PARTY IRREVOCABLY WAIVES ANY RIGHT TO TRIAL BY JURY IN ANY SUIT, ACTION OR PROCEEDING IN 
CONNECTION WITH OR RELATING TO THIS AGREEMENT OR ANY AGREEMENT ENTERED INTO PURSUANT HERETO AND AGREES 
THAT ANY SUCH SUIT, ACTION, OR PROCEEDING SHALL BE TRIED BEFORE A COURT AND NOT BEFORE A JURY.

11.2   Dispute Resolution.

(a)

Subject to Section 11.3, prior to the initiation of any Arbitration between the Parties, any dispute, controversy, or claim arising under, 

out of, or in connection with this Agreement, including any subsequent amendments (a “Dispute”) shall be first discussed in good faith between the Parties’ 
Senior Officers. Either Party shall have the right to refer a Dispute to the Parties’ Senior Officers for attempted resolution by sending a written notice to the 
other Party setting forth in reasonable detail the nature of the Dispute (the “Dispute Notice”). If either Party provides a Dispute Notice, then the Senior 
Officer (or his or her designee) from each Party shall, by phone or in-person, discuss the Dispute in good faith, commencing within [*] after the delivery of 
the Dispute Notice and continuing until at least [*] after the delivery of the Dispute Notice.

(b)

If the two Senior Officers (or their designees) have not reached a mutually acceptable resolution to the Dispute within [*] after the 

delivery of the Dispute Notice, then the Dispute shall be resolved by final, binding arbitration conducted in accordance with the then-current Commercial 
Rules (the “AAA Rules”) of the American Arbitration Association or any successor entity (the “AAA”) including the Procedures for Large, Complex 
Commercial Disputes (including, as appropriate, the Optional Rules for Emergency Measures of Protection), as amended from time to time, except as 
provided in this Section 11.2 (“Arbitration”).

(c)

Selection of Arbitrators. The Arbitration tribunal shall consist of three (3) arbitrators, who shall be selected as follows: (i) [*] shall be 

selected by Company; (ii) [*] shall be selected by NovaQuest; and (iii) [*] shall be selected by the [*] (each such arbitrator, an “Arbitrator”). Each of the 
Arbitrators shall have prior experience in connection with the biopharmaceutical industry, or shall be a retired judge. No Arbitrator shall be a current or 
former employee, shareholder, officer, or director of, or consultant, or advisor to, or other representative of, either Party. [*].

(d)

Venue and Language. The venue of the Arbitration shall be New York, New York, USA. The Arbitration shall be conducted in 

English, and all foreign language documents shall be submitted in the original language and shall be accompanied by a certified translation into English.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

30

 
(e)

Time Periods. The Arbitration shall be conducted expeditiously and efficiently, and absent good cause shown as determined by the 

Arbitrators, the Arbitrators shall conduct any evidentiary hearing within [*] of confirmation of the panel of Arbitrators. Upon the written mutual agreement 
of both Parties, any time period specified in this Section 11.2 or the [*] shall be extended or accelerated according to the Parties’ written mutual agreement. 
The Arbitrators shall take into account both the desirability of making discovery efficient and cost-effective and the needs of the Parties for an 
understanding of any legitimate issue raised in the Arbitration. The Arbitrators shall, upon the request of one or both parties, permit the exchange of 
documents relevant to the claims and defenses raised in the Arbitration. Unless the Parties mutually agree, no depositions or other discovery devices shall 
be permitted, absent extraordinary circumstances as determined by the Arbitrators.

(f)

Consolidation of Disputes. In order to facilitate the comprehensive resolution of related disputes, and upon request of any Party to the 
Arbitration proceeding, the Arbitrators may consolidate the Arbitration proceeding with any other Arbitration proceeding relating to this Agreement. The 
Arbitrators shall not consolidate such Arbitrations unless they determine that: (i) there are issues of fact or law common to the proceedings so that a 
consolidated proceeding would be more efficient than separate proceedings; and (ii) no Party would be prejudiced as a result of such consolidation through 
undue delay or otherwise. The Arbitrators shall have jurisdiction to decide matters of arbitrability.

(g)

Costs. The costs of the Arbitration, including reasonable fees plus expenses to be paid to the Arbitrator(s) and the reasonable out-of-

pocket costs (including the costs incurred for translation of the documents into English, reasonable attorneys’ and expert witness fees, and reasonable travel 
expenses) of the prevailing Party shall be borne by: (i) the losing Party, if the Arbitrator(s) rule in favor of one Party on all disputed issues in the 
Arbitration; and (ii) the Parties, as allocated in writing by the Arbitrator(s) in a manner with a reasonable relationship to the outcome of the Arbitration, if 
the Arbitrator(s) rule in favor of one Party with respect to some issues and in favor of the other Party with respect to other issues and, in either case ((i) or 
(ii)), paid within [*] from the final decision by the Arbitrator.

(h)

Decision to be Binding. The Arbitrators shall render a reasoned arbitral award. The award by the Arbitrators shall be final and binding 

on the Parties, non-reviewable and non-appealable, and judgment upon any arbitral award may be entered and enforced by any court or other judicial 
authority of competent jurisdiction. The Parties’ agreement to arbitrate, and any arbitral award, shall be enforced under the Federal Arbitration Act.

(i)

Confidentiality. All Disputes under this Agreement shall be kept confidential. All settlement negotiations, proceedings, and any award 

and any information obtained from the other Party in connection with the Arbitration shall be deemed Confidential Information subject to ARTICLE VI, 
provided that the Parties further agree that such Confidential Information may be disclosed to the extent necessary to enforce any award or enforce this 
Agreement to arbitrate; provided that either Party may disclose such settlement information if required by the U.S. Securities and Exchange Commission, 
and such disclosing Party shall use its reasonable efforts to secure confidential treatment of such Confidential Information prior to its disclosure (whether 
through protective orders or otherwise) or with respect to any filing required by a securities agency, the Parties agree to use reasonable efforts to provide 
the other with a copy of any filing required by a securities agency that will be made publicly available regarding the Agreement or its terms to review prior 
to filing and to consider any comments of the other Party in good faith, and to the extent either Party is required to file or disclose this Agreement with a 
securities agency, if the Agreement may become publicly available, such Party shall consider in good faith the other Party’s comments with respect to 
confidential treatment of the Agreement’s terms and shall redact the Agreement in a manner allowed by the securities agency to protect sensitive terms, and 
shall be permitted to file the Agreement, as so redacted, with the securities agency.

11.3   Equitable Relief. Each of the Parties hereto acknowledges that the other Party may have no adequate remedy at law if it fails to perform any of its 
obligations under ARTICLE VI of this Agreement. In such event, each of the Parties agrees that the other Party shall have the right, in addition to any other 
rights it may have (whether at law or in equity), to pursue equitable remedies such as injunction and specific performance for the breach or threatened 
breach of any provision of such ARTICLE VI from any court of competent jurisdiction.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

31

 
11.4   Expenses. Except as expressly set forth herein, each Party shall be responsible for and bear all of its own costs and expenses (including any legal 
fees, any accountants’ fees, and any brokers’, finders’, or investment banking fees or any prior commitment in respect thereof) with regard to the 
negotiation and consummation of the transactions contemplated by this Agreement. Notwithstanding the foregoing, each Party represents and warrants to 
the other that the other Party will not be liable for any brokerage commission, finder’s fee, or other like payment in connection with the transactions 
contemplated hereby because of any action taken by, or agreement or understanding reached by, that Party. If, after the Effective Date, Company requests 
an amendment of this Agreement in connection with any restructuring, reorganization, or similar transaction to which Company or any Affiliate of 
Company is a party, [*].

11.5   Relationship of the Parties. Nothing in this Agreement is intended to be construed so as to suggest that either Party (except as expressly set forth 
herein) is obligated to provide, directly or indirectly, any advice, consultations, or other services to the other Party. Neither Party shall have any 
responsibility for the hiring, termination, or compensation of the other Party’s employees or for any employee benefits of such employee. No employee or 
representative of a Party shall have any authority to bind or obligate the other Party to this Agreement for any sum or in any manner whatsoever or to create 
or impose any contractual or other liability on the other Party without such Party’s approval. For all purposes and notwithstanding any other provision of 
this Agreement to the contrary, each Party’s legal relationship under this Agreement to the other Party shall be that of independent contractor. This 
Agreement is not a partnership agreement, and nothing in this Agreement shall be construed to establish a relationship of co-partners or joint venturers 
between the Parties for any purpose, including any Tax purpose.

11.6   Successors and Assigns. Neither this Agreement nor any rights or obligations hereunder may be assigned in whole or in part by either Party, by 
operation of law or otherwise, without the prior written consent of the other Party (not to be unreasonably withheld, conditioned or delayed), provided that, 
notwithstanding the foregoing: (a) subject to the terms of any [*], NovaQuest may, upon delivery of reasonable written notice to Company, (i) assign, sell, 
or otherwise transfer this Agreement to an Affiliate of NovaQuest, and (ii) assign, sell, pledge, contribute, or otherwise transfer, in whole or in part, its 
rights to receive any payments under this Agreement, its rights to enforce such payment rights, and its rights to conduct or request audits or receive 
information and audit findings under ARTICLE V to any Person that is not a Company Competitor, and such Person may assign, sell, pledge, contribute, or 
otherwise transfer such rights to another Person that is not a Company Competitor; and (b) Company may assign, sell, pledge, contribute or otherwise 
transfer its rights or obligations hereunder in accordance with Section 8.2, Section 8.3, and Section 8.4. This Agreement shall be binding upon, and subject 
to the terms of this Section 11.6, inure to the benefit of the Parties hereto, their permitted successors, legal representatives and assigns, provided that [*]. 
Any assignment or attempted assignment not in accordance with this Section 11.6 shall be null and void.  Company shall maintain at one of its offices a 
register for the recordation of the names and addresses of the Parties and the commitments of, and principal amounts (and stated interest) under the 
Agreement owing to, each Party pursuant to the terms hereof from time to time (the “Register”).  The entries in the Register shall be conclusive absent 
manifest error, and the Parties shall treat each Person whose name is recorded in the Register pursuant to the terms hereof as a Party hereunder for all 
purposes of this Agreement.  The Register shall be available for inspection by the Parties, at any reasonable time and from time to time upon reasonable 
prior notice. The Parties agree that the foregoing is intended to ensure that the Agreement is in “registered form” within the meaning of Treasury 
Regulation Section 5f.103-1(c) and shall be interpreted consistently therewith. For avoidance of doubt, Company may assign, assign, sell, pledge, 
contribute or otherwise transfer its rights or obligations under such portions of Astellas Revenue that are not part of the Revenue Interest Payments due and 
payable to NovaQuest. 

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

32

 
11.7   Notices. All notices, consents, waivers, requests, and other communications hereunder shall be in writing and shall be delivered in person, sent by 
confirmed electronic mail, sent by overnight courier (e.g., Federal Express), confirmed facsimile transmission or posted by registered or certified mail, 
return receipt requested, with postage prepaid, to following addresses of the Parties:

If to Company:

FibroGen, Inc.
409 Illinois Street
San Francisco, CA 94158
[*]

with a copy to:

Goodwin Procter LLP
100 Northern Avenue
Boston, MA 02210
[*]

If to NovaQuest:

NQ Project Phoebus, L.P.
4208 Six Forks Road, Suite 920
Raleigh, NC 27609 
[*]

with a copy to:

Wyrick Robbins Yates & Ponton LLP
4101 Lake Boone Trail, Suite 300
Raleigh, North Carolina 27607
[*]

or to such other address or addresses as NovaQuest or Company may from time to time designate by notice as provided herein. Any such notice shall be 
deemed given: (a) when actually received when so delivered personally or by overnight courier; (b) if mailed, other than during a period of general 
discontinuance or disruption of postal service due to strike, lockout or otherwise, on the [*] after its postmarked date thereof; or (c) if sent by e-mail with 
acknowledgement of receipt, transmission on the date sent if such day is a Business Day or the next following Business Day if such day is not a Business 
Day.

11.8   Severability. If any provision hereof should be held invalid, illegal, or unenforceable in any jurisdiction, then the Parties shall negotiate in good faith 
a valid, legal, and enforceable substitute provision that most nearly reflects the original intent of the Parties. All other provisions hereof shall remain in full 
force and effect in such jurisdiction and shall be liberally construed in order to carry out the intentions of the Parties as nearly as may be possible. Such 
invalidity, illegality, or unenforceability shall not affect the validity, legality, or enforceability of such provision in any other jurisdiction. Nothing in this 
Agreement shall be interpreted so as to require a Party to violate any Applicable Law.

11.9   Waiver. Any term or condition of this Agreement may be waived at any time by the Party that is entitled to the benefit thereof, but no such waiver 
shall be effective unless set forth in a written instrument duly executed by or on behalf of the Party waiving such term or condition. No waiver by any Party 
of any term or condition of this Agreement, in any one or more instances, shall be deemed to be, or construed as, a waiver of the same or any other term or 
condition of this Agreement on any future occasion.

11.10   Entire Agreement. This Agreement, [*], including any Exhibits or Schedules to any the foregoing, set forth all of the covenants, promises, 
agreements, warranties, representations, conditions, and understandings between the 

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

33

 
 
 
 
 
 
 
 
 
Parties relating to the subject matter hereof and thereof and supersedes and terminates all prior agreements and understandings between the Parties. There 
are no covenants, promises, agreements, warranties, representations, conditions, or understandings, either oral or written, between the Parties relating to the 
subject matter hereof other than as set forth in this Agreement or [*]. The Parties acknowledge and agree that the Parties’ respective rights and obligations 
with regard to the subject matter herein are enshrined in this Agreement. Any conflict or inconsistency between the main body of this Agreement, the 
Exhibits, or Schedules, or any other documents to be delivered pursuant hereto shall be resolved in accordance with the following order of priority: (a) 
main body of this Agreement; (b) Exhibits and Schedules; and (c) other documents.

11.11   Third‑Party Beneficiaries. Except with regard to the NovaQuest Indemnitees under ARTICLE X, all rights, benefits, and remedies under this 
Agreement are solely intended for the benefit of the Parties (including their permitted successors and assigns), and no Third Party (except the NovaQuest 
Indemnitees with regard to their rights, benefits, and remedies under ARTICLE X of this Agreement and except for the Parties’ permitted successors and 
assigns) shall have any rights whatsoever to: (a) enforce any obligation contained in this Agreement; (b) seek a benefit or remedy for any breach of this 
Agreement; or (c) take any other action relating to this Agreement under any legal theory, including actions in contract, tort (including negligence, gross 
negligence and strict liability), or as a defense, setoff, or counterclaim to any action or claim brought or made by the Parties (or any of their permitted 
successors and assigns).

11.12   Interpretation. When a reference is made in this Agreement to Articles, Sections, Schedules, or Exhibits, such reference shall be to an Article, 
Section, Schedule, or Exhibit to this Agreement unless otherwise indicated. The words “include,” “includes,” and “including” when used herein shall be 
deemed in each case to be followed by the words “without limitation” and shall not be construed to limit any general statement that it follows to the 
specific or similar items or matters immediately following it. The headings and captions in this Agreement are for convenience and reference purposes only 
and shall not be considered a part of or affect the construction or interpretation of any provision of this Agreement. Unless specified otherwise, all 
statements of, or references to, monetary amounts in this Agreement are to Dollars. Each accounting term used herein that is not specifically defined herein 
shall have the meaning given to it under GAAP or IFRS, as applicable, but only to the extent consistent with its usage and the other definitions in this 
Agreement. Provisions that require that a Party or the Parties “agree,” “consent,” “approve,” or the like shall require that such agreement, consent, or 
approval be specific and in writing, whether by written agreement, letter, approved minutes, or otherwise. Words of any gender include the other gender, 
and words using the singular or plural number also include the plural or singular number, respectively. Neither Party hereto shall be deemed to be the 
drafter of this Agreement for the purposes of construing this Agreement against one Party or the other. If any notice or other action or omission is required 
to be taken by a Party under this Agreement on a day that is not a Business Day, then such notice or other action or omission shall be deemed to require to 
be taken on the next occurring Business Day.

11.13   Amendments. This Agreement may be amended, modified, or supplemented only by a written amendment or agreement signed by an authorized 
officer of both NovaQuest and Company.

11.14   No Implied Licenses. Each Party acknowledges that the rights granted in this Agreement are limited to the scope expressly granted, and all other 
rights to each Party’s respective technologies and intellectual property rights are expressly reserved to the Party owning or controlling such technologies 
and intellectual property rights.

11.15   Time. Time is of the essence with respect to this Agreement and each of its provisions.

11.16   Counterparts. This Agreement may be executed in any number of counterparts with the same effect as if each of the parties hereto had signed the 
same document. All counterparts shall be construed together and shall constitute one agreement. This Agreement, to the extent signed and delivered by 
means of a facsimile machine or via e‑mail in .pdf file format, shall be treated in all manner and respects as an original agreement or instrument and shall 
be considered to have the same binding legal effect as if it were the original signed version thereof delivered in person.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

34

 
11.17   Electronic Signatures. Any signature (including any electronic symbol or process attached to, or associated with, a contract or other record and 
adopted by a Person with the intent to sign, authenticate, or accept such contract or record) hereto or to any other certificate, document, or instrument 
related to this Agreement, and any contract formation or record-keeping through electronic means, shall have the same legal validity and enforceability as a 
manually executed signature or use of a paper-based recordkeeping system to the fullest extent permitted by applicable law, including the Federal 
Electronic Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act, or any similar state law based on 
the Uniform Electronic Transactions Act, and the Parties hereby waive any objection to the contrary.

11.18   Further Assurances. Each of the Parties hereto shall execute and deliver such additional documents, certificates, and instruments and shall perform 
such additional acts as may be reasonably requested and necessary or appropriate to carry out the purposes and intent and all of the provisions of this 
Agreement and to consummate all of the transactions contemplated by this Agreement.

11.19   Remedies. Neither the failure nor any delay by any Party in exercising any right, power, or privilege under this Agreement will operate as a waiver 
of such right, power, or privilege, and no single or partial exercise of such right, power, or privilege will preclude any other or further exercise of such 
right, power, or privilege or the exercise of any other right, power, or privilege. Unless specifically and expressly stated in this Agreement as exclusive, 
each remedy of the Parties specified in this Agreement is not exclusive, and, subject to the terms of this Agreement, is cumulative. The Parties shall be 
entitled to pursue any available legal or equitable remedy for breach of this Agreement or any provision hereof.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

[Signature page follows]

35

 
 
IN WITNESS WHEREOF, the Parties have executed this Funding Agreement by their duly authorized representatives as of the Effective Date.

FIBROGEN, INC.

By:
Name:
Title:

/s/ [*]
[*]
[*]

[Signature Page to NovaQuest – FibroGen Revenue Interest Financing Agreement]

 
 
 
 
IN WITNESS WHEREOF, the Parties have executed this Funding Agreement by their duly authorized representatives as of the Effective Date.

NQ PROJECT PHOEBUS, L.P.

By:
By:
Name:
Title:

NQ POF V GP, Ltd, its general partner
/s/ [*]
[*]
[*]

[Signature Page to NovaQuest – FibroGen Revenue Interest Financing Agreement]

 
 
 
 
Exhibit A

Reserved

[Exhibit A to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
 
Exhibit B

Astellas EMEA Agreement

[Attached]

[Exhibit B to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
 
Exhibit C

Astellas Japan Agreement

[Attached]

[Exhibit C to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
 
Exhibit D

Compound

The chemical compound or bulk active pharmaceutical compound, known as FG-4592, whose specific INN name is roxadustat with CAS number 808118-
40-3

[Exhibit D to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
 
 
 
 
[*]

Exhibit E

Company Bank Account Information

[Exhibit E to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
[*]. 

Schedule 7.1(e)

Product Patents

[Schedule 7.1(e) to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
 
[*].

Schedule 7.1(f)

Litigation

[Schedule 7.1(f) to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
 
 
Schedule 7.1(h)

Material Contracts

[*].

[Schedule 7.1(h) to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
•

[*]

Schedule 7.1(i)

Certain Regulatory Matters

[Schedule 7.1(i) to NovaQuest – FibroGen Revenue Interest Financing Agreement]  1

 
 
EXECUTION VERSION
 [*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and 
(ii) would likely cause competitive harm to the company if publicly disclosed.

LETTER AGREEMENT

Exhibit 10.47

THIS LETTER AGREEMENT (“Letter Agreement”) is effective as of NOVEMBER 4, 2022 (“Effective Date”) by and among ASTELLAS PHARMA INC. 
(“Astellas”), Astellas Pharma Europe Ltd. (“APEL”), and FibroGen, Inc. (“FibroGen”).    This  Letter  Amendment  amends  both  the  Anemia  License 
and  Collaboration  Agreement  entered  into  by  and  between  Astellas  and  FibroGen  on  April  28,  2006,  as  previously  amended  (the  “EU LCA”)  and  the 
Astellas EU Supply Agreement entered into by and between APEL and FibroGen effective as of January 1, 2021, as amended (the “EU CSA”). Astellas, 
APEL, and FibroGen shall be referred to individually herein as a “Party” and collectively as the “Parties”.  

  WHEREAS, under the EU LCA, Astellas and FibroGen have agreed to collaborate on the development and commercialization of certain small molecule 
prolyl hydroxylase inhibitors as therapeutics, including Roxadustat, in the Astellas Territory; and under the EU CSA, FibroGen has agreed to supply to 
APEL bulk product of Roxadustat for commercialization in such Astellas Territory; and 

WHEREAS,  subject  to  the  terms  and  conditions  of  this  Letter  Amendment,  the  Parties  agree  to  (1)  extend  the  date  in  which  FibroGen  shall  be 
obligated to maintain two (2) separate, validated manufacturing sites, as contemplated by the Manufacturing & Supply terms and conditions under the EU 
LCA and (2) [*] in the EU CSA, in each case of (1) and (2), [*]. 

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Parties agree as follows:

1) Unless otherwise defined herein, all capitalized terms and phrases used in this Letter Agreement shall have the meaning ascribed to them in the EU 

LCA and the EU CSA.

2) Astellas and FibroGen hereby agree to extend the date by which FibroGen shall be obligated to maintain two (2) separate validated manufacturing 
sites for the manufacture of Bulk Product, pursuant to the EU LCA’s Manufacturing & Supply section (first paragraph, page 19) (the “Alternative 
Site Validation Obligations”), [*], provided that in any event the Alternative Site Validation Obligations shall be fulfilled by FibroGen [*]. 

3) Astellas and FibroGen intend for FibroGen to become obligated to maintain two (2) separate validated manufacturing sites for Bulk Product within the 
time  frames  noted  in  paragraph  2  above  (the  “Purpose”).  Notwithstanding  anything  to  the  contrary  pursuant  to  the  definition  of  “Marketing 
Approval Application”  or  “MAA”  in  Section  1.51  of  the  EU  LCA,  the  Parties  agree  that  the  definition  of  “Marketing  Approval  Application”  or 
“MAA”  shall  be  and  is  hereby  limited  to  the  approval  of  a  new  drug  application  by  the  U.S.  Food  and  Drug  Administration,  and  the  regulations 
promulgated thereunder, for the purpose of enabling the Purpose of this Letter Agreement only.  

4)

[*]. 

5) The EU LCA and EU CSA, each as amended hereby, contains the entire understanding of the Parties with respect to the subject matter hereof.  

6) Except as otherwise provided herein, the each of the EU LCA and EU CSA has not been modified or amended and remains in full force and effect.  
All express or implied agreements and understandings, either oral or written, heretofore made that conflict with respect to the subject matter herein are 
expressly superseded in this Letter Agreement.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

1.  Confidential

 
 
 
 
 
 
 
 
 
 
 
 
 
EXECUTION VERSION
7) This Letter Agreement may be executed in counterparts, each of which shall be deemed an original, and all of which together shall constitute one and 
the  same  instrument.    Counterparts  may  be  signed  and  delivered  by  facsimile  and/or  via  portable  document  format  (.pdf),  each  of  which  shall  be 
binding when sent.

IN WITNESS WHEREOF, the Parties have executed this Letter Agreement as of the Effective Date.

ASTELLAS PHARMA EUROPE LTD.
By:
Name:
Title:
Date:

/s/ [*]
[*]
[*]
4 NOVEMBER 2022

FIBROGEN, INC.
By:
Name:
Title:
Date:

/s/ [*]
[*]
[*]
11/4/2022

ASTELLAS PHARMA INC.
/s/ [*]
By:
[*]
Name:
[*]
Title:
th
Nov 4 , 2022
Date:

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) would likely cause competitive harm to the 
company if publicly disclosed.

2.  Confidential

 
 
 
  
 
 
 
 
 
 
 
 
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 23.1

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-236844 and 333-266663) and Form S-8 (No. 
333-200348, No. 333-213816, No. 333-216369, No. 333-233204, No. 333-258655, and No. 333-266667) of FibroGen, Inc. of our report dated February 27, 
2023 relating to the financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in 
this Form 10-K.

/s/ PricewaterhouseCoopers LLP

San Jose, California
February 27, 2023

CERTIFICATION

Exhibit 31.1

I, Enrique Conterno, certify that;

1. I have reviewed this Form 10-K of FibroGen, Inc.;

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 registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) 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 registrant 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 registrant, 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 registrant’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 registrant’s internal control over financial reporting that occurred during the registrant’s most recent 
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, 
the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the 
registrant’s auditors and the audit committee of the registrant’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 registrant’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 registrant’s internal control 

over financial reporting.

Date: February 27, 2023

  /s/ Enrique Conterno
       Enrique Conterno
       Chief Executive Officer 
       (Principal Executive Officer)

 
 
 
 
 
CERTIFICATION

Exhibit 31.2

I, Juan Graham, certify that;

1. I have reviewed this Form 10-K of FibroGen, Inc.;

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 registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) 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 registrant 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 registrant, 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 registrant’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 registrant’s internal control over financial reporting that occurred during the registrant’s most recent 
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, 
the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the 
registrant’s auditors and the audit committee of the registrant’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 registrant’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 registrant’s internal control 

over financial reporting.

Date: February 27, 2023

  /s/ Juan Graham
       Juan Graham

     Senior Vice President and Chief Financial Officer 

(Principal Financial Officer)

 
 
 
 
 
        
 
CERTIFICATION

Exhibit 32.1

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 1350 of 
Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), Enrique Conterno, Chief Executive Officer of FibroGen, Inc. (the “Company”), and 
Juan Graham, Chief Financial Officer of the Company, each hereby certifies that, to the best of his knowledge:

1.

2.

The Company’s Annual Report on Form 10-K for the year ended December 31, 2022 (the “Annual Report”), to which this Certification is attached 
as Exhibit 32.1, fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act, and

The information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of operations of the 
Company.

In Witness Whereof, the undersigned have set their hands hereto as of the 27th day of February 2023.

/s/ Enrique Conterno

Enrique Conterno
Chief Executive Officer

/s/ Juan Graham
Juan Graham
Senior Vice President and Chief Financial Officer

This certification accompanies the Form 10-K to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be 
incorporated by reference into any filing of FibroGen, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as 
amended (whether made before or after the date of the Form 10-K), irrespective of any general incorporation language contained in such filing.