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Sinovac Biotech, Ltd.

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FY2020 Annual Report · Sinovac Biotech, Ltd.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 20-F

(Mark One)
☐

REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2020

OR

OR

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

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

OR

☒

☐

☐

Date of event requiring this shell company report

For the transition period from              to              

Commission file number: 001-32371

SINOVAC BIOTECH LTD.
(Exact name of Registrant as specified in its charter)

N/A
(Translation of Registrant’s name into English)

Antigua, West Indies
(Jurisdiction of incorporation or organization)

No. 15 Zhi Tong Road,
Zhongguancun Science & Technology Park,
Changping District, Beijing 102200
People’s Republic of China
(Address of principal executive offices)

Nan Wang
Chief Financial Officer
No. 15 Zhi Tong Road,
Zhongguancun Science & Technology Park,
Changping District, Beijing 102200
People’s Republic of China
Tel: +86-10-5693-1800
Fax: +86-10-5693-1800
E-mail: ir@sinovac.com
(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)

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

Title of each class
Common Shares, par value $0.001 per share
Preferred Share Purchase Rights

  Trading Symbol(s)

SVA*

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

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

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

None
(Title of Class)

None
(Title of Class)

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

99,294,743 Common Shares and 14,630,813 Series B Convertible Preferred Shares as of

December 31, 2020

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

☐ Yes ☒ No

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of
1934.

☐ Yes ☒ No

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 during the
preceding 12 months (or such shorter period that the registrant was required to submit such files).

☒ Yes ☐ No

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

Large accelerated filer ☐

Accelerated filer ☒

Non-accelerated filer ☐
Emerging growth company ☐

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

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

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

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:
U.S. GAAP ☒ 

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

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

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

  Other ☐

☐ Item 17 ☐ Item 18

☐ Yes ☒ No

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

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent
to the distribution of securities under a plan confirmed by a court.

☐ Yes ☐ No

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CONTENTS

Identity of Directors, Senior Management and Advisers
Offer Statistics and Expected Timetable
Key Information
Information on the Company
Unresolved Staff Comments
Operating and Financial Review and Prospects
Directors, Senior Management and Employees
Major Shareholders and Related Party Transactions
Financial Information
The Offer and Listing
Additional Information
Quantitative and Qualitative Disclosures about Market Risk
Description of Securities other than Equity Securities

Defaults, Dividend Arrearages and Delinquencies
Material Modifications to the Rights of Security Holders and Use of Proceeds
Controls and Procedures
Audit Committee Financial Expert
Code of Ethics
Principal Accountant Fees and Services
Exemptions from the Listing Standards for Audit Committees
Purchases of Equity Securities by the Issuer and Affiliated Purchasers
Change in Registrant’s Certifying Accountant
Corporate Governance
Mine Safety Disclosure

INTRODUCTION

PART I

ITEM 1.
ITEM 2.
ITEM 3.
ITEM 4.
ITEM 4A.
ITEM 5.
ITEM 6.
ITEM 7.
ITEM 8.
ITEM 9.
ITEM 10.
ITEM 11.
ITEM 12.

PART II

ITEM 13.
ITEM 14.
ITEM 15.
ITEM 16A.
ITEM 16B.
ITEM 16C.
ITEM 16D.
ITEM 16E.
ITEM 16F.
ITEM 16G.
ITEM 16H.

PART III

ITEM 17.
ITEM 18.
ITEM 19.

Financial Statements
Financial Statements
Exhibits

1

2

2
2
2
31
46
46
57
66
67
71
72
84
84

84

84
85
85
86
86
86
87
87
87
87
87

87

87
87
87

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
INTRODUCTION

In this annual report on Form 20-F, unless otherwise indicated or unless the context otherwise requires,

•

•

•

•

•

•

“Sinovac,” “Sinovac Biotech,” “Company,” “we,” “us,” “our company,” and “our” refer to Sinovac Biotech Ltd., its predecessor entities and its consolidated
subsidiaries

“Sinovac Antigua” refers to Sinovac Biotech Ltd.;

“China,” “Chinese” or the “PRC” refers to the People’s Republic of China, excluding, for the purposes of this annual report on Form 20-F only, Taiwan and
the special administrative regions of Hong Kong and Macau;

“RMB” or “renminbi” refers to the legal currency of China; and “$” or “U.S. dollars” refers to the legal currency of the United States;

“shares” or “common shares” refers to our common shares, par value $0.001 per share; and

“U.S. GAAP” refers to generally accepted accounting principles in the United States.

Discrepancies in any table between the amounts identified as total amounts and the sum of the amounts listed therein are due to rounding.

This annual report contains translations of certain renminbi amounts into U.S. dollars at specified rates solely for the convenience of readers. All translations from
renminbi  to  U.S.  dollars  were  made  at  the  noon  buying  rate  in  The  City  of  New  York  for  cable  transfers  in  renminbi  per  U.S.  dollar  as  certified  for  customs
purposes by the Federal Reserve Bank of New York, or the noon buying rate. Unless otherwise stated, the translation of renminbi into U.S. dollars has been made at
the  noon  buying  rate  in  effect  on  December  31,  2020,  which  was  RMB6.5250  to  $1.00.  We  make  no  representation  that  the  renminbi  or  U.S.  dollar  amounts
referred to in this annual report could have been or could be converted into U.S. dollars or renminbi, as the case may be, at any particular rate or at all. On April 16,
2021, the noon buying rate was RMB6.5203 to $1.00.

1

 
 
PART I

ITEM 1. IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS

Not applicable.

ITEM 2. OFFER STATISTICS AND EXPECTED TIMETABLE

Not applicable.

ITEM 3. KEY INFORMATION

A. Selected Financial Data

The  following  selected  consolidated  statements  of  comprehensive  income  (loss)  data  for  the  fiscal  years  ended  December  31,  2020,  2019  and  2018,  and
consolidated balance sheet data as of December 31, 2020 and 2019 have been derived from our audited consolidated financial statements that are included in this
annual report beginning on page F-1. The following selected consolidated statements of comprehensive income (loss) data for the fiscal years ended December 31,
2017 and 2016 and consolidated balance sheet data as of December 31, 2018, 2017 and 2016 have been derived from our audited consolidated financial statements
that are not included in this annual report.

2

 
Our historical results do not necessarily indicate results expected for any future periods.

Consolidated statements of
Comprehensive income (loss) data

Sales
Cost of sales(1)
Gross profit
Operating expenses:
Selling, general and administrative expenses(1)
Provision (recovery) for doubtful accounts
Research and development expenses(1)
Loss on disposal and impairment of property, plant and
   equipment
Government grants recognized in income
Total operating expenses
Operating income
Interest and financing expenses
Interest income
Other income
Income (loss) before income taxes and non-controlling interests
Income tax expenses
Income (loss) from continuing operations
Net income from discontinued operations, net of tax of nil
Net income (loss)
Less: (income) loss attributable to non-controlling interests
Net income (loss) attributable to the shareholders of Sinovac
Preferred stock dividends
Net income (loss) attributable to common shareholders of Sinovac
Comprehensive income (loss)
Less: comprehensive (income) loss attributable to non-
   controlling interests
Comprehensive income (loss) attributable to shareholders
   of Sinovac
Weighted average number of common shares outstanding
- basic
- diluted
Earnings (loss) per share

Basic
Continuing operations
Discontinued operations
Basic net income (loss) per share

Diluted
Continuing operations
Discontinued operations
Diluted net income (loss) per share

Weighted average number of common shares outstanding
- basic
- diluted
Supplemental information(2)
Non-GAAP adjusted EBITDA
Non-GAAP net income from continuing operations
Non-GAAP Diluted EPS from continuing operations

2020

2019

Year ended December 31,
2018

2017

2016

(in thousands except share and per share data)

  $

510,624    $
67,180     
443,444     

246,053    $
32,469   
213,584   

229,650    $
24,723     
204,927     

174,346    $
20,240     
154,106     

176,534     
2,640     
48,760     

163     
(297)    
227,800     
215,644     
(1,453)    
1,930     
496     
216,617     
(31,438)    
185,179     
—     
185,179     
(74,810)    
110,369     
(6,015)    
104,354     
217,507     

121,468   
(306)  
24,254   

294   
(688)  
145,022   
68,562   
(650)  
1,996   
912   
70,820   
(5,605)  
65,215   
—   
65,215   
(20,286)  
44,929   
(5,128)  
39,801   
62,388   

137,003     
820     
21,910     

75     
(197)    
159,611     
45,316     
(1,070)    
2,016     
321     
46,583     
(10,472)    
36,111     
—     
36,111     
(14,329)    
21,782     
—     
21,782     
25,115     

87,365     
934     
20,489     

42     
(141)    
108,689     
45,417     
(1,569)    
1,183     
13     
45,044     
(8,339)    
36,705     
—     
36,705     
(10,898)    
25,807     
—     
25,807     
44,803     

72,431 
22,393 
50,038 

41,980 
1,412 
12,648 

478 
(6,984)
49,534 
504 
(1,729)
731 
100 
(394)
(2,664)
(3,058)
2,338 
(720)
124 
(596)
— 
(596)
(9,563)

(82,892)    

(19,681)  

(12,507)    

(12,089)    

953 

134,615     

42,707   

12,608     

32,714     

(8,610)

98,897,345     
    113,662,362     

94,876,946   
109,691,959   

64,727,146     
64,977,554     

57,033,816     
57,101,191     

56,949,083 
56,949,083 

1.06     
—     
1.06     

0.97     
—     
0.97     

0.42   
—   
0.42   

0.41   
—   
0.41   

0.34     
—     
0.34     

0.34     
—     
0.34     

0.45     
—     
0.45     

0.45     
—     
0.45     

(0.05)
0.04 
(0.01)

(0.05)
0.04 
(0.01)

98,897,345     
    113,662,362     

94,876,946   
109,691,959   

64,727,146     
64,977,554     

57,033,816     
57,101,191     

56,949,083 
56,949,083 

229,884     
197,080     
1.03    $

  $

76,382   
68,524   

0.44    $

54,757     
39,857     
0.38    $

51,277     
36,361     
0.44    $

8,223 
293 
0.01 

(1)

Includes  share-based  compensation  of  $10.2  million,  $3.0  million,  $4.3  million,  $1.0  million  and  $2.4  million  in  2020,  2019,  2018,  2017  and  2016,
respectively.

(2) See “Non-GAAP Measures” below.

3

 
 
 
 
 
   
   
   
   
 
 
     
   
 
   
 
   
 
     
       
   
 
      
      
  
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
     
       
   
 
      
      
  
   
 
 
     
       
   
 
      
      
  
 
     
       
   
 
      
      
  
     
       
   
 
      
      
  
   
 
   
 
   
 
 
     
       
   
 
      
      
  
     
       
   
 
      
      
  
   
 
   
 
   
 
 
     
       
   
 
      
      
  
     
       
   
 
      
      
  
   
 
 
     
       
   
 
      
      
  
   
 
   
 
 
Non-GAAP Measures

We use Non-GAAP adjusted EBITDA, non-GAAP net income from continuing operations and non-GAAP diluted EPS from continuing operations, in evaluating
our operating results and for financial and operational decision-making purposes.

We believe that Non-GAAP adjusted EBITDA, non-GAAP net income from continuing operations and non-GAAP diluted EPS from continuing operations help
identify underlying trends in our business that could otherwise be distorted by the effect of certain income or expenses that we include in income from operations
from continuing operations, net income from continuing operations and diluted EPS from continuing operations. We believe that Non-GAAP adjusted EBITDA,
non-GAAP net income from continuing operations and non-GAAP diluted EPS from continuing operations provide useful information about our core operating
results,  enhance  the  overall  understanding  of  our  past  performance  and  future  prospects  and  allow  for  greater  visibility  with  respect  to  key  metrics  used  by
management in our financial and operational decision-making.

Non-GAAP  adjusted  EBITDA,  non-GAAP  net  income  from  continuing  operations  and  non-GAAP  diluted  EPS  from  continuing  operations  should  not  be
considered in isolation or construed as an alternative to income from operations from continuing operations, net income from continuing operations, diluted EPS
from continuing operations, or any other measure of performance or as an indicator of our operating performance. These non-GAAP financial measures presented
here  may  not  be  comparable  to  similarly  titled  measures  presented  by  other  companies.  Other  companies  may  calculate  similarly  titled  measures  differently,
limiting their usefulness as comparative measures to our data.

Non-GAAP adjusted EBITDA represents income (loss) from continuing operations, excludes interest and financing expenses, interest income, net other income
(expenses) and income tax benefit (expenses), and certain non-cash expenses, consisting of share-based compensation expenses, amortization and depreciation that
we do not believe are reflective of our core operating performance during the periods presented.

Non-GAAP  net  income  from  continuing  operations  represents  net  income  (loss)  from  continuing  operations  before  share-based  compensation  expenses,  and
foreign exchange gain or loss.

Non-GAAP diluted EPS from continuing operations represents non-GAAP net income attributable to ordinary shareholders from continuing operations divided
by  the  weighted  average  number  of  shares  outstanding  during  the  periods  on  a  diluted  basis,  including  accounting  for  the  effect  of  the  assumed  conversion  of
options.

The table below sets forth a reconciliation of our income (loss) from continuing operations to Non-GAAP adjusted EBITDA for the periods indicated:

2020

2019

Year ended December 31,
2018
(in thousands)

2017

2016

Income (loss) from continuing operations

  $

185,179    $

65,215    $

36,111    $

36,705    $

(3,058)

Adjustments

Share-based compensation
Depreciation and amortization
Interest and financing expenses, net of interest income
Net other income
Income tax expense
Non-GAAP adjusted EBITDA

10,203     
4,037     
(477)    
(496)    
31,438     
229,884    $

3,003     
4,817     
(1,346)    
(912)    
5,605     
76,382    $

4,305     
5,136     
(946)    
(321)    
10,472     
54,757    $

979     
4,881     
386     
(13)    
8,339     
51,277    $

  $

2,409 
5,310 
998 
(100)
2,664 
8,223 

The following table sets forth a reconciliation of our net income from continuing operations to non-GAAP net income from continuing operations for the periods
indicated:

Net Income (loss) from continuing operations
Add: Foreign exchange (gain) loss
Add: Share-based compensation
Non-GAAP net income from continuing operations

2020

2019

Year ended December 31,
2018
(in thousands)

2017

2016

  $

  $

185,179    $
1,698     
10,203     
197,080    $

65,215    $
306     
3,003     
68,524    $

36,111    $
(559)    
4,305     
39,857    $

36,705    $
(1,323)    
979     
36,361    $

(3,058)
942 
2,409 
293 

4

 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
   
      
      
      
      
  
   
   
   
   
   
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
   
   
 
The following table sets forth a reconciliation of our diluted EPS from continuing operations to non-GAAP diluted EPS from continuing operations for the periods
indicated:

2020

Year ended December 31,
2018
(in thousands except share and per share data)

2019

2017

2016

Net income (loss) from continuing operations
   attributable to common shareholders of Sinovac
Add: Preferred stock dividends
Net Income (loss) from continuing operations
   attributable to common shareholders of Sinovac
   for computing diluted earnings per share
Add: Non-GAAP adjustments to net income from
   continuing operations(1)
Non-GAAP net income attributable to common
   shareholders of Sinovac from continuing operations
   for computing non-GAAP diluted earnings per share

Weighted average number of shares on a diluted basis
Diluted earnings (loss) per share from continuing
   operations(2)
Add: Non-GAAP adjustments to net income per share
   from continuing operations(3)
Non-GAAP diluted earnings per share from continuing
   operations(4)

  $

104,354    $
6,015     

39,801    $
5,128     

21,782    $
—     

25,807    $
—     

(2,934)
— 

110,369     

44,929     

21,782     

25,807     

(2,934)

7,365     

2,109     

2,764     

(344)    

3,351 

117,734     

47,038     

24,546     

25,463     

417 

    113,662,362      109,691,959     

64,977,554     

57,101,191     

56,949,083 

0.97     

0.41     

0.34     

0.45     

(0.05)

0.06     

0.02     

0.04     

(0.01)    

  $

1.03    $

0.43    $

0.38    $

0.44    $

0.06 

0.01 

(1) See  the  table  above  about  the  reconciliation  of  net  income  from  continuing  operations  to  non-GAAP  net  income  from  continuing  operations  for  more

information on these non-GAAP adjustments.

(2) Diluted EPS from continuing operations is derived from net income attributable to ordinary shareholders from continuing operations for computing diluted

EPS divided by weighted average number of shares on a diluted basis.

(3) Non-GAAP adjustments to net income per share from continuing operations is derived from non-GAAP adjustments to net income from continuing operations

divided by weighted average number of shares on a diluted basis.

(4) Non-GAAP diluted EPS from continuing operations is derived from non-GAAP net income attributable to ordinary shareholders from continuing operations

for computing non-GAAP diluted EPS from continuing operations divided by weighted average number of shares on a diluted basis.

Balance sheet data

2020

2019

As of December 31,
2018
(in thousands)

2017

2016

Cash and cash equivalents
Total assets
Short-term bank loans and current portion of long-term debt
Total current liabilities
Long term debt (include due to related party)
Net assets
Non-controlling interests
Common stock
Total shareholders’ equity

  $

  $

1,041,008    $
1,901,326     
32,941     
679,610     
8,285     
1,120,125     
373,653     
99     
746,472    $

152,718    $
452,299     
5,934     
87,199     
1,436     
352,195     
58,176     
99     
294,019    $

158,170    $
369,780     
3,321     
58,205     
10,595     
291,928     
38,495     
71     
253,433    $

114,415    $
299,219     
18,152     
92,543     
21,919     
177,140     
25,988     
57     
151,152    $

62,434 
211,355 
31,279 
66,264 
9,448 
129,666 
13,899 
57 
115,767 

B. Capitalization and Indebtedness

Not applicable.

C. Reasons for the Offer and Use of Proceeds

Not applicable.

5

 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
   
   
   
   
 
   
      
      
      
      
  
   
   
 
 
 
 
 
 
   
   
   
   
 
 
 
 
   
   
   
   
   
   
   
 
D. Risk Factors

Risks Related to Our Company

Our business growth relies on our ability to react to infectious disease threats and to continually introduce new vaccine products into the commercial market.
Our failure to effectively develop and commercialize new products could materially and adversely affect our business, financial condition, results of operations
and prospects.

The biopharmaceutical market in general and the vaccine product market in particular are developing rapidly as a result of ongoing infectious disease threats and
new trends in the related research and technology developments. Consequently, our success depends on our ability to react to threats of disease and technology
development trends and to identify, develop and commercialize in a timely and cost-effective manner effective vaccine products that meet evolving market needs.

Whether we are successful in developing and commercializing new products is determined by, among other things, our ability to:

•

•

•

•

•

•

•

•

•

•

accurately assess disease and technology trends and market needs;

maintain strong research and development capabilities;

optimize our manufacturing and procurement processes to predict and control costs;

manufacture and deliver products with good quality in a timely manner and in sufficient quantities;

increase customer awareness and acceptance of our products;

minimize the time and cost required to obtain required regulatory clearances and approvals;

anticipate and compete effectively with other vaccine product developers, manufacturers and marketers;

price our products competitively;

comply with the guidelines of Good Manufacturing Practice (“GMP”) and other related regulations; and

thoroughly understand the frequently developing regulatory guidelines and regulations on vaccine products and comply with the regulations and guidelines
accordingly.

Although we are profitable in 2018, 2019 and 2020, we incurred a loss in past years, and may incur losses again in the future.

Biopharmaceutical product development is a highly speculative undertaking and involves a substantial degree of risk. We recorded a profit in 2018, 2019 and 2020.
However, we incurred a loss in the past years, caused primarily by research and development expenses. None of the research and development expenses incurred
were capitalized in our financial statements. We intend to continue to invest in research and development to sustain our long-term growth. We expect our research
and  development  expenses  to  fluctuate  depending  on  the  progress  we  make  on  each  project,  with  relatively  more  spending  on  clinical  studies  than  preclinical
studies. We expect that our spending on research and development will have a negative impact on our future net earnings. As a result, we may incur losses in the
future, which will have an adverse impact on our working capital, total assets, shareholders’ equity and cash flow.

As required by the PRC laws, we sell vaccines in China through Centers for Disease Control (“CDCs”) which are PRC government agencies. This exposes us
to risks relating to doing business with the government.

As  required  by  the  PRC  laws,  we  sell  our  vaccines  to  CDCs,  which  exposes  us  to  various  risks  relating  to  doing  business  with  the  government.  For  example,
demand and ability to pay for our products may be affected by government budgetary cycles, shifting availability of public funds and changes in policy. Funding
reductions, delays in payment or unilateral demands for changes to the terms of our contracts by our government customers could adversely impact our results of
operations and financial condition, exacerbate the existing seasonality of our revenues and make it difficult for us to allocate resources or anticipate demand for our
products. More importantly, we have little or no control over government procurement decisions, and government agencies that contract to purchase our products
may reduce or cancel orders, or demand price adjustments or other changes to their contracts with us without our consent. Changes in the personnel of the PRC
government agencies that purchase our products may result in changes or delays to or cancellations of purchase commitments due to, among others, differing policy
and budgetary agendas of the personnel involved. Similar changes could occur if CDC or other relevant government agencies were to be consolidated with another
ministry. In addition, if our vaccines are to be sold in other countries or regions other than China, regulatory approvals from the relevant governmental authorities
of the target markets are to be obtained. Any of the above mentioned actions taken by government agencies could have a material adverse effect on our results of
operations and expected earnings, or result in our failure to meet, or having to adjust downwards, our sales and gross margin guidance or estimates, which could
adversely affect our stock price and result in substantial losses. In addition, many of

6

 
the  remedies  that  are  available  to  us  when  dealing  with  private  parties,  such  as  making  claims  for  breach  of  contract  or  taking  other  legal  actions,  may  not  be
available or practicable in our dealings with government agencies.

We currently have limited revenue sources. A reduction in revenues from sales of hepatitis A vaccine, hepatitis A&B vaccine, influenza vaccines, enterovirus
type  71  (“EV71”)  vaccine,  varicella  vaccine,  mumps  vaccines  and  COVID-19  vaccine  would  cause  our  revenues  to  decline  and  could  materially  harm  our
business.

We generate all of our revenues from sales of our vaccine products. We derive a substantial percentage of our revenues from a small number of vaccine products,
including hepatitis A vaccine, Healive, hepatitis A&B vaccine, Bilive, influenza vaccines, EV71 vaccine, Inlive, varicella vaccine, mumps vaccine and COVID-19
vaccine, CoronaVac. As a result of this relative lack of product diversification, an investment in our company would be riskier than investments in companies that
offer a wide variety of products or services.

We  expect  our  key  products,  which  will  likely  shift  over  time,  to  account  for  a  significant  portion  of  our  net  revenues  for  the  foreseeable  future.  As  a  result,
continued market acceptance and popularity of these products are critical to our success and a reduction in demand due to, among other factors, the introduction of
competing products by our competitors, the entry of new competitors, or end-users’ dissatisfaction with the quality of our products, could materially and adversely
affect our financial condition and results of operations.

We could be subject to costly and time-consuming product liability actions and, because our insurance coverage is limited, our exposure to such claims could
cause significant financial burden.

Our  business  exposes  us  to  potential  product  liability  risks  that  are  inherent  in  the  testing,  manufacturing  and  marketing  of  biopharmaceutical  products.  We
manufacture vaccines that are injected into healthy people to protect against infectious illnesses. If our products do not function as anticipated, whether as a result
of flaws in our design, unanticipated health consequences or side effects, misuse or mishandling by third parties, or faulty or contaminated supplies, they could
harm the vaccines and, as a result, subject us to product liability lawsuits. Claims against us also could be based on failure to immunize as anticipated. Any product
liability claim brought against us, with or without merit, could have a material adverse effect on us. Meritless and unsuccessful product liability claims can be time-
consuming and expensive to defend and could result in the diversion of management’s attention from managing our core business or result in associated negative
publicity.

Successful assertion of product liability claims against us could require us to pay significant monetary damages. Although we currently carry worldwide product
liability  insurance  for  Healive,  Bilive,  Anflu,  Panflu  and  Inlive,  we  cannot  assure  that  such  coverage  will  be  sufficient  to  cover  any  liabilities  resulting  from
successful product liability claims. In such a case, we may be required to make substantial payments to cover any losses, damages or liabilities arising from product
liability claims. For any amounts covered by insurance, foreign exchange or other regulatory restrictions may prevent the use of insurance proceeds to meet the
liabilities. In addition, we do not have or plan to procure clinical trial liability insurance for our clinical trials to mitigate any unsuccessful clinical trial expenses or
product liability claims arising therefrom. Any of these factors could have a material adverse effect on our business, financial condition and results of operations.

We face risks related to health epidemics and other widespread outbreaks of contagious disease, which could disrupt our operations and impact our operating
results.

Significant outbreaks of contagious diseases, and other adverse public health developments, could have a material impact on our business operations and operating
results. In December 2019, a strain of novel coronavirus, COVID-19, causing respiratory illness emerged in the city of Wuhan in the Hubei province of China and
has subsequently spread throughout the world. The outbreak of COVID-19 was recognized as a pandemic by the World Health Organization on March 11, 2020. In
response to the outbreak, governmental authorities in various jurisdictions imposed lockdowns and other restrictions to contain the virus, and various businesses
suspended or reduced operations. The PRC government took certain emergency measures to combat the spread of the virus, including implementation of travel
bans and closure of factories and businesses throughout the whole country, including Beijing where our research and development functions and main production
lines  are  located.  We  continue  to  monitor  the  spread  of  COVID-19  in  China  and  globally  and  have  put  in  place  and  will  continue  to  put  in  place  measures  as
appropriate and necessary for our business. Any prolonged deviations from normal daily operations could negatively impact our business. In the first half of 2020,
our domestic sales ceased due to suspension of vaccination by the CDCs in China, and our export is disrupted due to cancellations of cargo flights. We have been
closely monitoring the changes and continually assessing the potential impact on our business. Any prolonged disruption of our clinical trials, suppliers or contract
manufacturers could delay regulatory approvals or the commercialization of any current or future products.

We could face risks and uncertainties related to our efforts to develop a vaccine to help prevent COVID-19 and potential treatments for COVID-19, as well as
challenges related to their manufacturing, supply and distribution.

We face uncertainties related to our efforts to develop a vaccine to prevent the COVID-19, including uncertainties and risks that our existing and future vaccines
may not be successful, commercially viable or receive final approval from regulatory authorities. The pre-clinical, clinical data or safety data and further analysis of
the existing pre-clinical, clinical or safety of our existing COVID-19 vaccine or future vaccines or treatments may be unfavorable, or we may not be able to produce
comparable clinical or other results, including but not limited to the rate of vaccine effectiveness and safety and tolerability profile observed to date or in larger,
more diverse populations upon commercialization. Our COVID-19 vaccine, CoronaVac, may not be able to prevent COVID-19 caused by emerging virus variants.
The widespread use of the vaccine may lead to new information about efficacy, safety or other developments, including the risk of additional adverse reactions or
side  effects  and  regulatory  authorities  may  not  be  satisfied  with  the  results  from  our  and  any  future  pre-clinical  and  clinical  studies  and  may  not  approve  our
existing or

7

 
future  vaccines  or  treatments,  or  may  withdraw  or  terminate  such  approvals  granted  previously  to  us.  Disruptions  in  the  relationships  between  us  and  our
collaboration partners, research and development institutes, clinical trial site, countries where the trials are conducted or third-party suppliers, availability of raw
materials to manufacture any such products, our ability to scale up or maintain the manufacturing capacity on a timely basis or have access to logistics or supply
channels commensurate within global demand for any potential approved vaccine or product candidate, could delay the commercialization of our existing COVID-
19  vaccine  or  any  future  vaccines  or  products  or  otherwise  have  a  significant  impact  on  our  business,  financial  condition  and  results  of  operations.  We  cannot
guarantee you that we can produce superior or more competitive products than our other competitors, or whether the demand for our COVID-19 vaccine may still
exist. Any of these factors could have a material adverse effect on our business, financial condition and results of operations.

Our financial prospects depend on the success of our clinical-stage and pre-clinical stage product pipeline.

We  have  invested  significant  time  and  resources  on  the  development  of  our  existing  vaccine  candidates,  and  we  expect  to  continue  to  incur  substantial  and
increasing expenditures for the development and commercialization of our vaccine candidates. Our ability to achieve revenue and profitability is dependent on our
ability to complete the clinical development of our vaccine candidates, obtain necessary regulatory approvals, and have our vaccines manufactured and successfully
marketed.  Clinical  testing  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. The results of pre-clinical studies and early clinical trials of our vaccine candidates may not be predictive of the results of later-stage clinical
trials, and initial or interim results of a trial may not be predictive of the final results. If our vaccine candidates fail to achieve their expected success in a timely
manner or at all, we could experience significant delays in our ability to obtain approval for and/or to successfully commercialize our vaccine candidates. We would
have  expended  a  significant  amount  of  capital  to  progress  the  relevant  vaccine  candidates  to  that  stage,  and  would  not  realize  any  revenue  on  such  vaccine
candidate if it then ultimately failed to receive regulatory approval due to poor clinical trial results. It would materially harm our business and we may not be able
to generate sufficient revenues and cash flows to continue our operations.

We have devoted significant resources to research and develop various vaccines to address the pandemic threat of infectious diseases, including COVID-19, SARS,
avian flu and swine flu, and will continue to devote resources to the development of vaccines to address any new needs.

However, the threat of a pandemic outbreak may subside before we realize any return on our investment in our research and development. For example, although
we believed we were the first company to complete a phase I clinical trial of an inactivated SARS vaccine in December 2004, we did not proceed with the phase II
and phase III trials as the SARS epidemic subsequently subsided. Other organizations may obtain licenses for their own pandemic vaccines, or government health
organizations  may  acquire  adequate  stockpiles  of  pandemic  vaccine  or  adopt  other  technologies  or  strategies  to  prevent  or  limit  outbreaks  before  our  pandemic
vaccines achieve significant sales. We may not achieve a return on our investment before the threat of a pandemic outbreak subsides or a competing product is
adopted. We have completed phase III trials of COVID-19 vaccine in Brazil, Turkey, Indonesia and Chile and have received a conditional marketing authorization
for CoronaVac from the NMPA. We cannot assure comparable clinical or other results, including the rate of vaccine effectiveness and safety and tolerability profile
or in larger, more diverse populations upon commercialization. Major international and Chinese vaccine companies, universities and other research institutions are
also pursuing the development of the COVID 19- vaccines. They may succeed in developing COVID-19 vaccine and obtaining regulatory approvals before us or
gain better acceptance for the same target markets as ours, which will undermine our competitive position.

Moreover, because we have limited financial and managerial resources, we focus our product pipeline on research programs and vaccine candidates that we identify
for  specific  indications.  As  a  result,  we  may  forego  or  delay  pursuit  of  opportunities  with  other  vaccine  candidates  that  later  prove  to  have  greater  commercial
potential.

8

 
 
Failure to comply with the U.S. Foreign Corrupt Practices Act (“FCPA”) and other applicable anti-corruption laws could subject us to penalties and other
adverse consequences and corrupt practices by our competitors may place us at a competitive disadvantage.

Our  executive  officers,  employees  and  other  agents  may  violate  applicable  laws  in  connection  with  the  marketing  or  sale  of  our  products,  including  FCPA  and
applicable anti-corruption laws in China and other jurisdictions in which our products are sold or registered for sale. FCPA generally prohibits United States issuers
from  engaging  in  bribery  or  other  prohibited  payments  to  foreign  officials  for  the  purpose  of  obtaining  or  retaining  business  and  requires  issuers  to  maintain
reasonable internal controls. The PRC also strictly prohibits bribery of government officials. We have adopted a policy regarding compliance with FCPA and other
applicable  anti-corruption  laws  to  prevent,  detect  and  correct  such  corrupt  practice.  However,  corruption,  extortion,  bribery,  pay-offs,  theft  and  other  fraudulent
practices occur from time to time in the PRC and some of the countries in which we seek to do business. While we have sought to enhance measures and controls to
ensure  compliance  with  FCPA  and  other  applicable  anti-corruption  laws  by  individuals  involved  with  our  company,  our  existing  compliance  policies  and
procedures  may  be  insufficient  or  may  fail  to  prevent  our  employees  or  other  agents  from  engaging  in  inappropriate  conduct  for  which  we  might  be  held
responsible. If our employees or other agents are found to have engaged in such practices, we could suffer severe penalties and other consequences that may have a
material adverse effect on our business, financial condition and results of operations. In addition, our brand and reputation, our sales activities or the price of our
common shares could be adversely affected if we become the target of any negative publicity as a result of actions taken by our employees or other agents. As
discussed  under  “Item  8.  Financial  Information  —  A.  Consolidated  Statements  and  Other  Financial  Information  —  Legal  and  Administrative  Proceedings,”  we
have conducted an internal investigation regarding FCPA related matters and have informed NASDAQ, the SEC and the U.S. Department of Justice (the “DOJ”)
regarding these matters. On August 14, 2018, the SEC notified us that the SEC had concluded its investigation and would not recommend an enforcement action
against us at this time. On September 12, 2018, the DOJ notified us that it had closed its investigation, with no charges. With the closure of the DOJ’s investigation,
we are not aware of any pending U.S. government investigations on us related to these matters. 

In addition, there may be corrupt practices in the healthcare industry in China and other countries in which we conduct business. Our competitors may engage in
corrupt practices in order to influence decision-makers in violation of the anti-corruption laws of China and FCPA. As competition persists and intensifies in our
industry, we may lose potential clients, client referrals and other opportunities to the extent that our competitors engage in such practices or other illegal activities.

Failure to achieve and maintain effective internal controls could have a material adverse effect on our business, results of operations and the trading price of
our common shares.

We are subject to the reporting obligations under U.S. securities laws. Section 404 of the Sarbanes-Oxley Act of 2002 and related rules require public companies to
include a report of management on their internal control over financial reporting in their annual reports. This report must contain an assessment by management of
the effectiveness of a public company’s internal control over financial reporting. In addition, an independent registered public accounting firm for a public company
must attest to and report on the effectiveness of our internal control over financial reporting.

Our management has concluded that our internal control over financial reporting is effective as of December 31, 2020. See “Item 15. Controls and Procedures.”
Our independent registered public accounting firm has issued an attestation report on our internal control over financial report, which concludes that our internal
control over financial reporting is effective in all material aspects. However, we cannot assure that any material weakness or deficiency in our internal control over
financial reporting will not be identified in the future. We may not always be able to maintain an effective internal control over financial reporting. If we fail to
maintain effective internal control over financial reporting in the future, we and our independent registered public accounting firm may not be able to conclude that
we  have  effective  internal  control  over  financial  reporting  at  a  reasonable  assurance  level.  This  could  in  turn  result  in  the  loss  of  investor  confidence  in  the
reliability of our financial statements and negatively impact the trading price of our common shares, inhibiting our ability to raise sufficient capital on favorable
terms. Furthermore, we have incurred and anticipate that we will continue to incur considerable costs and use significant management time and other resources in
an effort to comply with Section 404 and other requirements of the Sarbanes-Oxley Act.

If we are unable to successfully compete in the highly competitive biopharmaceutical industry, our business could be harmed.

We  operate  in  a  highly  competitive  environment  and  we  expect  the  competition  to  increase  in  the  future.  Our  competitors  include  large  pharmaceutical  and
biotechnology companies, both domestic and international. Many of these competitors have greater resources than we do. New competitors may also enter into the
markets  in  which  we  compete.  Accordingly,  even  if  we  are  successful  in  launching  a  product,  we  may  not  be  able  to  outperform  a  competing  product  for  any
number of reasons, including the possibility that the competitor may:

•

•

•

•

•

have launched its competing product first or the competing product may have, or be perceived as having, better efficacy, stronger brand recognition, or other
advantages;

have better access to certain raw materials;

have more efficient manufacturing processes and greater manufacturing capacity;

have greater marketing capabilities;

have greater pricing flexibility;

9

 
•

•

•

•

•

have more extensive research and development and technical capabilities;

have proprietary patent portfolios or other intellectual property rights that may present obstacles to our business;

have greater knowledge of local market conditions where we seek to increase our international sales;

have capability to maintain a competitive management team; or

have investment capability to acquire businesses when the opportunity is not available to us.

The technologies applied by our competitors and us are rapidly evolving and new developments frequently result in price competition and product obsolescence. In
addition,  we  may  be  impacted  by  competition  from  generic  forms  of  our  products,  substitute  products  or  imports  of  products  from  lower-priced  markets.  For  a
detailed description of our competitors, please see “Item 4. Information on the Company — B. Business Overview — Competition.”

We may not be able to maintain market share in China with our commercialized vaccines, which could adversely affect our ability to increase our revenues.

We used to estimate our market share in China based on the batch release number published by the National Institutes for Food and Drug Control (“NIFDC”) which
represents the market share estimated based on published supply quantity, but not the actual number of sales in the market. We supplied 10.9%, 20.6% and 41.8%
of the EV71 vaccine market in China in 2020, 2019 and 2018, respectively. We supplied 30.4%, 26.7% and 24.3% of the total hepatitis A vaccine market in China,
or 81.8%, 71.9% and 67.8% of the inactivated hepatitis A vaccine market in China in 2020, 2019 and 2018, respectively. We supplied 18.6%, 14.8% and nil of the
seasonal flu vaccine market in China in 2020, 2019 and 2018, respectively. We supplied 82%, 70.6% and 21.2% of the mumps vaccine market in China in 2020,
2019 and 2018, respectively. We also launched varicella vaccine in 2020 and supplied 4.1% of varicella in 2020. Our revenue could be adversely impacted if we are
not able to maintain our market share.

We may not be able to maintain market share in the government-funded hepatitis A vaccine market, or other government-funded vaccine markets, which could
adversely affect our revenues, and if we do maintain or expand market share in these markets, we may need to sell our vaccines at a lower price, which could
adversely affect our gross margin.

Hepatitis  A  vaccines  have  been  included  in  the  Expanded  Program  on  Immunization  (“EPI”)  in  China  since  2007.  The  PRC  government  purchases  hepatitis  A
vaccines for each 18-month-old child. Although the hepatitis A vaccines have been included in the EPI, most provincial and municipal governments are not able to
afford the two shots of inactivated hepatitis A vaccines due to insufficient financial support, which constrains the purchase of inactivated hepatitis A vaccines in
government-funded  markets.  Most  provincial  and  municipal  governments  prefer  to  purchase  lower-priced  live  attenuated  hepatitis  A  vaccines;  however,  a  few
affluent provincial and municipal governments, such as Beijing, Tianjin, Shanghai and Jiangsu province, have started to purchase inactivated hepatitis A vaccines.
We are supplying vaccines in these government-funded markets at a lower price than we do in the private market, which could adversely affect our gross margin.
Our revenue could also be adversely impacted if we are not able to maintain our market share of the government-funded markets in these cities and provinces. As
we are making efforts to breakthrough into additional provincial and municipal public markets, we may be forced to lower our prices to win tenders, which will
adversely affect our gross margin.

Since 2007, we have been selected as one of the suppliers by Beijing CDC to supply seasonal influenza vaccines to Beijing citizens. We cannot assure that we will
continue to obtain orders in the future and maintain our market share. If the supply volume decreases, it would negatively impact our sales revenue in the future.

Since 2008, we have received three stockpiling orders for our H5N1 vaccine from China’s central government every two years in an amount of three million doses
per order, and four stockpiling orders from Beijing government in an amount of 20,000 doses per order. The latest batch of stockpiled H5N1 vaccines for the central
government expired in the first half of 2016 and we recognized the revenue upon the government inspection. The most recent batch ordered by Beijing government
expired in 2020. We cannot assure that we will receive additional stockpiling orders from governments in the future.

If CDCs, hospitals, physicians and patients do not accept our products, we may be unable to generate significant revenue.

Even  if  we  have  obtained  regulatory  approvals  for  commercialization  of  our  vaccines  in  China  or  in  other  countries  or  regions,  they  still  may  not  gain  market
acceptance among CDCs, regulatory agencies, hospitals, physicians, patients and the medical community, which would limit our ability to generate revenue and
adversely affect our results of operations. CDCs, regulatory agencies, hospitals and physicians may not recommend products developed by us or our collaborators
until clinical data or other factors demonstrate superior or comparable safety and efficacy of our products as compared to other available treatments. Even if the
clinical safety and efficacy of our products are established, CDCs, regulatory agencies, hospitals and physicians may elect not to recommend these products for a
variety  of  reasons.  There  are  other  vaccines  and  treatment  options  for  the  conditions  that  many  of  our  products  and  product  candidates  target,  such  as  EV71,
hepatitis A and B and influenza. In order to successfully launch a product, we must educate physicians and patients about the relative benefits of our products. If
our products are not perceived as easy and convenient to use, perceived to present a greater risk of side effects or are not perceived to be as effective as other

10

 
available vaccines, CDCs, hospitals, physicians and patients might not adopt our products. A failure of our products to gain commercial acceptance would have a
material adverse effect on our business, financial condition and results of operations.

Our business could be negatively affected as a result of actions of shareholders or others.

On March 5, 2018, we announced the re-election of the members of our board of directors—Mr. Weidong Yin, Mr. Yuk Lam Lo, Mr. Simon Anderson, Mr. Kenneth
Lee, and Mr. Meng Mei—at our annual general meeting of shareholders held on February 6, 2018 (the “2017 AGM”). We also announced that we had determined,
after consultation with our Antigua legal counsel, that an alternative, pre-printed ballot not made available to all our shareholders and purportedly submitted at the
2017 AGM by certain of our shareholders, including 1Globe Capital LLC (“1Globe”), The Chiang Li Family, OrbiMed Advisors LLC and OrbiMed Capital LLC
(together  “OrbiMed”),  and  certain  additional  shareholders  (collectively,  the  “Shareholder  Group”)  was  invalid.  We  refer  to  this  ballot  as  the  “Non-Public
Submission.” On March 13, 2018, 1Globe filed a complaint against Sinovac Antigua in the Eastern Caribbean Supreme Court in the High Court of Justice, Antigua
and Barbuda (the “Antigua Court”). The complaint sought a declaration that the five persons purportedly proposed by the Shareholder Group on the Non-Public
Submission at the 2017 AGM were elected as directors of Sinovac Antigua at that meeting, an order that those directors be installed as Sinovac Antigua’s board of
directors, and a declaration that any actions taken on behalf of Sinovac Antigua at the direction of the board of directors since the 2017 AGM are null and void.
Following a trial in early December 2018, the Antigua Court issued a judgment on December 19, 2018 that dismissed 1Globe’s claim and declared that Sinovac
Antigua’s shareholder rights agreement (the “Rights Agreement”) was validly adopted as a matter of Antigua law. 1Globe filed notice to appeal the Antigua Court’s
judgment on January 29, 2019. 1Globe’s appeal of the Antigua Court’s Judgment was heard on September 18, 2019, and the appeal decision is pending as of the
date of this annual report.

On October 8, 2018, Sinovac became aware that unauthorized documents in respect of Sinovac Biotech (Hong Kong) Ltd. (“Sinovac Hong Kong”) had been filed
with the Hong Kong Companies Registry to change the directors of Sinovac Hong Kong from Mr. Weidong Yin and Ms. Nan Wang to Mr. Jianzeng Cao and Mr.
Pengfei  Li.  Mr.  Yin  and  Ms.  Wang  commenced  legal  proceedings  before  the  High  Court  of  the  Hong  Kong  Special  Administrative  Region  (“Hong  Kong  High
Court”) (“HCMP 1731/2018”). In a hearing before the Hong Kong High Court on October 19, 2018, the judge granted an interlocutory injunction restraining Mr. Li
and Mr. Cao from purporting to act or holding themselves out as directors of Sinovac Hong Kong or its subsidiaries, purporting to take any actions as directors of
Sinovac Antigua or its subsidiaries, and relying on or using the forged documents in any way whatsoever. On November 28, 2018 at a further hearing in the Hong
Kong High Court, the Hong Kong High Court made orders (“November 28 Order”) and held that it is beyond dispute that the documents in respect of Sinovac
Hong Kong had been forged and unlawfully filed with the Hong Kong Companies Registry, based on the evidence filed by Mr. Yin and Ms. Wang as Plaintiff, and
Mr. Cao and Mr. Li as the Defendants. The Hong Kong High Court therefore declared that Mr. Yin and Ms. Wang were and still are the lawful directors of Sinovac
Hong  Kong  (“Lawful  Directors”),  and  Mr.  Li  and  Mr.  Cao  were  not  and  are  not  the  lawful  directors  of  Sinovac  Hong  Kong.  The  Hong  Kong  High  Court  also
granted  a  permanent  injunction  restraining  Mr.  Li  and  Mr.  Cao  from  purporting  to  act  or  holding  themselves  out  as  directors  of  Sinovac  Hong  Kong  or  its
subsidiaries (including but not limited to Sinovac Biotech Co., Ltd. (“Sinovac Beijing”), purporting to take any actions as directors of Sinovac Hong Kong or its
subsidiaries, and relying on or using the forged documents in any way whatsoever. Furthermore, the Hong Kong High Court also ordered the Companies Registry
to  remove  the  forged  documents  in  respect  of  Sinovac  Hong  Kong  that  had  been  unlawfully  filed.  The  November  28  Order  is  effective  and  enforceable.  The
Companies Registry has removed the forged documents following the November 28 Order. On November 28, 2018, Mr. Cao and Mr. Li filed a Notice of Appeal
with the Hong Kong Court of Appeal, indicating their intention to appeal the orders made by the Hong Kong High Court. The appeal does not operate as a stay on
the November 28 Order except to the extent that the Court below, or the Court of Appeal otherwise directs: O.59, r. 13 (1)(a) of the Rules of the High Court. As of
the date of this annual report, neither the Court of First Instance nor the Court of Appeal directed that the execution of the November 28 Order should be stayed. So
far, Mr. Cao and Mr. Li have taken no further steps in respect of the appeal after the Notice of Appeal was filed on November 28, 2018. No hearing date has yet
been fixed to hear the appeal.

On October 8, 2018, Sinovac also became aware that unauthorized documents in respect of Sinovac Beijing had been filed with the Industry and Commerce Bureau
of Haidian District of Beijing (“Haidian AIC”) to change the directors of Sinovac Beijing from Mr. Yin, Ms. Wang and Mr. Dawei Mao to Mr. Cao, Mr. Li and Ms.
Xiaomin Yang. Mr. Yin and Ms. Wang filed objection to such unlawful change to the Haidian AIC. On March 19, 2020, Haidian AIC issued an official decision
(“AIC Decision”) declaring that (i) the unauthorized documents filed are forged and fake documents; (ii) the filing of change of directors with the forged documents
is null and void; (iii) the unlawful filing to change the directors will be removed and the registration of Mr. Yin, Ms. Wang and Mr. Mao as directors of Sinovac
Beijing will be restored. The parties of material interest concerned in the AIC Decision may raise objection or file a lawsuit within 60 days. No one has filed the
objection or lawsuit against the AIC Decision within 60 days thereof.

On May 31, 2019, Heng Ren Investments LP (“Heng Ren”) filed suit against Sinovac and Weidong Yin for alleged breach of fiduciary duties and wrongful equity
dilution, in Massachusetts state court. Sinovac removed the matter from state court to the United States District Court for the District of Massachusetts. Heng Ren
alleged that Mr. Yin breached fiduciary duties owed to minority shareholders, that Sinovac aided and abetted breaches of fiduciary duties, and that both Sinovac
and Mr. Yin engaged in wrongful equity dilution. Heng Ren requested damages, attorneys’ fees, and prejudgment interest. On September 14, 2020, Sinovac filed a
motion to dismiss Heng Ren’s claims and the court’s decision on that motion is pending.

We cannot predict the outcome of our ongoing litigation, including whether we will prevail. We also cannot predict how the litigation may affect our stock price,
which could be volatile during the pendency of each suit and following its conclusion. Preparing for the litigation, or any related litigation or related matters, has
caused us to incur significant costs and we expect these costs to continue until the litigation concludes. In addition, preparing for litigation is time-consuming and
may disrupt our operations and divert the attention of management and our employees from

11

 
executing our strategic plan. In addition, the uncertainties as to the composition of the board of directors of Sinovac Antigua may materially and adversely affect
business in unpredictable ways, which, in turn, could cause our revenue, earnings and operating cash flows to be materially and adversely affected.

The ongoing litigation regarding the Rights Agreement could have a material adverse effect on the results of our operations and our financial condition.

On March 5, 2018, we filed a lawsuit in the Court of Chancery of the State of Delaware seeking a determination whether the Shareholder Group had triggered the
Rights  Agreement,  by  forming  a  group  holding  approximately  45%  of  outstanding  shares,  in  excess  of  the  Right  Agreement’s  threshold  of  15%,  and  acting  in
concert prior to the 2017 AGM. The Rights Agreement is intended to promote the fair and equal treatment of all Sinovac shareholders and ensure that no person or
group can gain control of Sinovac through undisclosed voting arrangements, open market accumulation or other tactics potentially disadvantaging the interest of all
our shareholders.

On April 12, 2018, 1Globe filed an amended answer to our complaint, counterclaims, and a third-party complaint against Mr. Weidong Yin alleging, among other
allegations,  that  the  Rights  Agreement  is  not  valid,  that  Mr.  Weidong  Yin  and  the  Buyer  Consortium  (described  below)  had  previously  triggered  the  Rights
Agreement, and that 1Globe did not trigger the Rights Agreement. The Chiang Li Family and OrbiMed filed similar responses. We, and our board of directors,
believe that the actions taken by our board of directors were appropriate under the circumstances and in the interests of our company and all our shareholders. We
also  believe  that  the  allegations  in  the  counterclaim  and  third-party  complaint  are  without  merit.  1Globe  asks  for  various  measures  of  equitable  relief  and  also
includes a claim for its costs, including attorneys’ fees. On March 6, 2019, the Delaware Court entered a status quo order preventing us from distributing Exchange
Shares to any shareholders or otherwise take any action pursuant to the Rights Agreement until the conclusion of the Delaware litigation or Court order. The case is
stayed pending resolution of parallel litigation in Antigua.

Following  a  trial  on  the  validity  of  the  Sinovac  Antigua’s  Rights  Agreement,  on  December  19,  2018,  the  Antigua  Court  held  that  Sinovac  Antigua’s  Rights
Agreement is valid under Antigua law, and found that “there was a secret plan to take control of the Company” at the 2017 AGM by the Shareholder Group. On
February 18, 2019, after reviewing the Court’s judgment and considering all additional facts known to the Board, the Board determined that the Shareholder Group,
together with their affiliates and associates (collectively, the “Collaborating Shareholders”) became Acquiring Persons on or prior to the 2017 AGM and that their
conduct resulted in a “Trigger Event” under Sinovac Antigua’s Rights Agreement. Pursuant to the Rights Agreement, our board of directors elected to exchange
(the “Exchange”) each valid and outstanding preferred share purchase right held by Sinovac Antigua’s shareholders (not including the Collaborating Shareholders)
for a combination of 0.655 of Sinovac Antigua’s common shares and 0.345 of Sinovac Antigua’s newly created Series B Convertible preferred shares (the “Series B
Preferred Shares” and, together, each an “Exchange Share”). On February 22, 2019, the Exchange Shares were issued into the Shareholder 2019 Rights Exchange
Trust in the name of Wilmington Trust, National Association, which holds the Exchange Shares for the benefit of Sinovac Antigua’s shareholders (not including the
Collaborating Shareholders). 1Globe filed notice to appeal the Antigua Court’s judgment on January 29, 2019. On April 4, 2019, the Eastern Caribbean Supreme
Court,  Court  of  Appeal  issued  an  order  that  restrains  Sinovac  Antigua  from  taking  further  action  under  its  Rights  Agreement,  including  the  distribution  of  the
previously issued Exchange Shares, until the conclusion of such appeal. 1Globe’s appeal of the Antigua Court’s Judgment was heard on September 18, 2019, and
the appeal decision is pending as of the date of this annual report.

We cannot predict the outcome of the litigation. Preparing for this litigation, or any related litigation or related matters, has caused us to incur significant costs and
we  expect  these  costs  to  continue  until  the  litigation  concludes.  In  addition,  preparing  for  this  litigation  is  time-consuming  and  may  disrupt  our  operations  and
divert the attention of management and our employees from executing our strategic plan.

Our ongoing litigation against 1Globe and The Chiang Li Family claiming violations of U.S. federal securities laws could have a material adverse effect on the
results of our operations and our financial condition.

On March 5, 2018, Sinovac Antigua filed a lawsuit in the United States District Court for Massachusetts alleging violations of Section 13(d) and Section 13(g) of
the  Securities  Exchange  Act  of  1934  (the  “Exchange  Act”)  by  1Globe  and  The  Chiang  Li  Family.  The  lawsuit  alleges,  among  other  things,  that  the  defendant
shareholders failed to make required disclosures on Schedule 13D regarding their intentions to attempt to replace Sinovac Antigua’s board of directors. 1Globe
counterclaimed  to  allege  violations  of  securities  laws;  specifically,  abuse  of  process,  negligent  misrepresentation,  and  fraudulent  misrepresentation  by  Sinovac
Antigua.

The litigation is currently stayed pending resolution of the parallel litigation in Antigua, and we cannot predict when or how the litigation will be resolved. There
can be no assurance that we will prevail in this litigation. Preparing for this litigation, or any related litigation or related matters may result in significant costs to
our company or otherwise adversely affect our business.

Disruptive  actions  taken  by  the  minority  shareholder  of  Sinovac  Beijing  caused  suspension  of  production,  destruction  of  products  and  disruption  of  our
website, which may materially and adversely affect our business, financial condition and results of operations.

Sinovac Beijing, our principal operating subsidiary, is a Sino-foreign equity joint venture in which we own a 73.09% interest and Sinobioway Bio-medicine Co.,
Ltd.,  formerly  named  Xiamen  Bioway  Group  Co.,  Ltd  (“Sinobioway  Medicine”),  owns  a  26.91%  interest.  Recent  events  suggest  that  Sinobioway  Medicine’s
interests are not aligned with our interests. We cannot assure that Sinobioway Medicine will be cooperative with us in handling matters related to the operations of
Sinovac Beijing.

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As the minority shareholder of Sinovac Beijing, according to Sinovac Beijing’s articles of association, Sinobioway Medicine has the right to assign a director to the
five-director  board  of  Sinovac  Beijing,  and  the  director  assigned  by  Sinobioway  Medicine  is  the  legal  representative  of  Sinovac  Beijing.  Accordingly,  the
representative of Sinobioway Medicine has the ability to take actions that bind Sinovac Beijing or to block any action that requires unanimous board approval. In
addition,  if  we  wish  to  transfer  our  equity  interest  in  Sinovac  Beijing,  in  whole  or  in  part,  to  a  third  party,  Sinobioway  Medicine  has  a  right  of  first  refusal  to
purchase our interest in accordance with relevant PRC regulations.

Sinobioway  Medicine,  the  minority  shareholder  of  Sinovac  Beijing,  has  additional  rights  under  the  joint  venture  contract  and  articles  of  association  of  Sinovac
Beijing. The joint venture contract and articles of association require the consent of each of Sinovac Beijing’s shareholders and/or unanimous board approval on
matters such as a major change in the business line of the company, expansion or amendment of the business scope of the company, transfer of the registered capital
by a shareholder, creation of a mortgage or pledge upon the company’s assets, a change in the organizational form of the company and designation or removal of
the general manager.

In February 2018, Mr. Aihua Pan, the representative of Sinobioway Medicine, sent letters without the approval of the full board of Sinovac Beijing, to Mr. Weidong
Yin,  Ms.  Nan  Wang,  and  other  senior  managers  of  Sinovac  Beijing  purporting  to  terminate  their  employment.  The  board  of  directors  of  Sinovac  Beijing
subsequently determined, with the advice of PRC legal counsel, that this action did not conform with the joint venture contract and articles of association and was
unlawful. On March 5, 2018, Sinovac Biotech announced actions taken to enhance the corporate governance and management of Sinovac Beijing, including the
appointment of Mr. Dawei Mao, Chairman of Zhongke Biopharmaceutical Co., Ltd., as a director of Sinovac Beijing. He replaced Ms. Xiaomin Yang, the current
President of Sinobioway Group Co., Ltd. In addition, in March 2018, Mr. Weidong Yin, Ms. Nan Wang, and other senior managers of Sinovac Beijing signed new
employment agreements with Sinovac Biotech Ltd. and Sinovac Beijing.

On April 17, 2018, Mr. Aihua Pan and dozens of unidentified individuals forcibly entered Sinovac Beijing’s corporate offices and limited the physical movements
of employees in Sinovac Beijing’s general manager’s office and finance department in an attempt to wrongfully take control of Sinovac Beijing’s official seal, legal
documents, accounting seal, financial documents and financial information systems. In addition, these individuals disrupted Sinovac Beijing’s hepatitis A vaccine
production  and  seasonal  flu  vaccine  production  by  cutting  power,  seriously  impacting  Sinovac  Beijing’s  production  and  manufacturing  processes  and  possibly
damaging product quality. Due to these disruptive actions, Sinovac Beijing was forced to destroy the affected products. To maintain product safety, Sinovac Beijing
temporarily suspended production at the impacted facility, though production has resumed at this facility months later. Sinovac Beijing was also forced to destroy
the  bacterial  seeds  intended  for  use  in  the  production  of  its  23-valent  pneumococcal  polysaccharide  vaccine  (“PPV”)  and  to  suspend  all  preparations  for  and
ultimately postpone the inspection by NMPA, formerly known as the PRC State Food and Drug Administration, of the manufacturing site necessary for 23-valent
PPV production approval. On September 17, 2020, the Fourth Intermediate People’s Court of Beijing issued a judgment holding Sinobioway Medicine and Mr.
Aihua Pan liable for torts and breaches of shareholders fiduciary duty under the PRC Company Law and liable for Sinovac Beijing’s losses of RMB 15.4 million
caused  by  their  disruptive  actions.  Sinovac  Beijing,  Sinobioway  Medicine  and  Mr.  Aihua  Pan  filed  notice  to  appeal  to  the  Higher  People’s  Court  of  Beijing
Municipality.

These and other actions taken by the representative of Sinobioway Medicine may materially and adversely affect our business, financial condition and results of
operations. We also cannot assure you that the representative of Sinobioway Medicine will cease from interfering with our business.

We  do  not  currently  intend  to  hold  an  annual  general  meeting  of  shareholders  until  after  the  final  determination  of  the  litigation  concerning  the  Rights
Agreement, which will delay the ability of our shareholders to vote in an election of our directors.

With the ongoing litigations concerning the Exchange and the Rights Agreement, we have not been able to hold an annual meeting of shareholders since February
2018, and will not be able to hold an annual meeting of shareholders before the final determination of such litigations. Therefore, our shareholders will not have the
opportunity to vote in an election of our directors for an indeterminate amount of time. If our shareholders want us to hold an annual meeting prior to the final
determination of these ongoing litigations, they may attempt to force us to hold one under Antigua law.

We may not achieve the expected return on our investment in Sinovac (Dalian) Vaccine Technology Co., Ltd. (“Sinovac Dalian”).

In November 2009, we entered into an agreement with Dalian Jin Gang Group to establish Sinovac Dalian. In January 2010, we established Sinovac Dalian to focus
on  the  research,  development,  manufacturing  and  commercialization  of  vaccines,  such  as  mumps  and  varicella  for  human  use.  Pursuant  to  the  joint  venture
agreement, we made an initial cash contribution of RMB60.0 million ($9.2 million) in exchange for a 30% equity interest in Sinovac Dalian, and Dalian Jin Gang
Group made an asset contribution of RMB140.0 million ($21.5 million), including the manufacturing facilities, production lines and land use rights, in exchange
for the remaining 70% interest in Sinovac Dalian. In December 2010, we purchased an additional 25% equity interest in Sinovac Dalian from Dalian Jin Gang
Group for consideration of RMB50.0 million ($7.7 million). In October 2016, we increased our ownership in Sinovac Dalian to 67.86% by making an additional
RMB80.0 million ($12.3 million) capital contribution. In November 2020, we increased our ownership in Sinovac Dalian to 68% by converting RMB46.6 million
($7.0 million) loan into capital. In 2020, 2019 and 2018, we provided a loan of RMB17 million ($2.6 million), RMB30 million ($4.6 million) and RMB30 million
($4.6  million),  respectively,  to  Sinovac  Dalian.  We  cannot  assure  that  Sinovac  Dalian’s  business,  covering  the  research,  development,  manufacturing  and
commercialization of vaccines, such as mumps and varicella, will be successful. As such, we could incur related impairment charges in the future. Any failure to
achieve the expected return on our investment in Sinovac Dalian may materially and adversely affect our business, financial condition and results of operations.

13

 
The  interests  of  the  minority  shareholder  of  Sinovac  Beijing,  Sinovac  Life  Sciences  Co.,  Ltd.  (“Sinovac  LS”,  formerly  known  as  Sinovac  Research  and
Development Co., Ltd.) and Sinovac Dalian may diverge from our own, which may adversely affect our ability to manage these subsidiaries.

We are the majority shareholder of and have equity interests in Sinovac Beijing, Sinovac LS and Sinovac Dalian. If our interests diverge from those of our minority
shareholders, they may exercise their rights under the relevant articles of association, shareholder’s agreement or joint venture contracts of each of such subsidiaries
and the relevant PRC laws to protect their own interests, which may substantially differ from ours. As a result, our ability to manage these subsidiaries may be
adversely affected, which in turn may materially and adversely affect our business, financial condition and results of operations.

Recent disruptive actions taken by Sinobioway Medicine has shown that its interests are not aligned with ours. We cannot assure that Sinobioway Medicine will be
cooperative in handling matters related to the operations of Sinovac Beijing in the future.

As  of  the  date  of  this  annual  report,  Dalian  Jin  Gang  Group  has  been  cooperating  with  us  with  respect  to  the  business  of  Sinovac  Dalian,  and  the  minority
shareholders of Sinovac LS have been aligned with us with respect to the business of Sinovac LS. We cannot assure, however, that these minority shareholders will
continue to act in a cooperative manner in the future.

Our growth may be adversely affected if market demand for our vaccine products and product candidates does not meet our expectations. We may encounter
problems of inadequate supply or oversupply, which would materially and adversely affect our financial condition and results of operations and would also
damage our reputation and brand.

The production of vaccine products is a lengthy and complex process. As a result, our inability to match our production to market demand may result in a failure to
meet  market  demand,  which  could  materially  and  adversely  affect  our  financial  condition  and  results  of  operations  and  could  also  damage  our  reputation  and
corporate brand. For example, many patients receive their seasonal flu vaccinations in the three-month period from September to November in anticipation of an
upcoming flu season and we expect this period to be one of the most significant sales periods for this product each year. In anticipation of the flu season, we intend
to  build  up  inventory  of  our  Anflu  product  in  line  with  what  we  believe  will  be  the  anticipated  demand  for  the  product.  If  actual  demand  does  not  meet  our
expectations,  we  may  be  required  to  write  off  significant  inventory  and  may  otherwise  experience  adverse  consequences  in  our  financial  condition.  If  we
overestimate demand, we may purchase more raw materials than required. If we underestimate demand, our third-party suppliers may have inadequate raw material
inventories, which could interrupt our manufacturing, delay shipments and result in lost sales.

If we are unable to enroll sufficient subjects and identify clinical investigators for our clinical trials, our development programs could be delayed or terminated.

The  rate  of  completion  of  our  clinical  trials  significantly  depends  on  the  rate  of  enrollment  of  volunteers.  Patients  enrollment  is  a  function  of  many  factors,
including:

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efforts of the sponsor and clinical sites involved to facilitate timely enrollment;

patient referral practices of physicians;

design of the protocol;

eligibility criteria for the study in question;

perceived risks and benefits of the drug under study;

the size of the patient population;

availability of competing therapies;

availability of clinical trial sites; and

proximity of and access by patients to clinical sites.

We may have difficulty in obtaining sufficient volunteer subjects enrollment or finding qualified investigators to conduct the clinical trials as planned and we may
need  to  expend  substantial  funds  to  obtain  access  to  resources  or  delay  or  modify  our  plans  significantly.  These  considerations  may  lead  us  to  consider  the
termination of development of a product for a particular indication.

A setback in any of our clinical trials could adversely affect our share price.

Clinical trials are an important part of vaccine research before any vaccine is approved for commercial use in humans. Setbacks in any phase of the clinical trials of
our product candidates could have a material adverse effect on our business and prospects and financial results and would

14

 
likely cause a decline in the price of our common shares. We may not achieve our projected development goals in the time frames we announce and expect. If we
fail to achieve one or more milestones as contemplated, the market price of our common shares could decline.

We  set  goals  for,  and  make  public  statements  regarding,  our  anticipated  timing  of  the  accomplishment  of  objectives  material  to  our  success,  such  as  the
commencement  and  completion  of  clinical  trials  and  other  milestones.  The  actual  timing  of  these  events  can  vary  significantly  due  to  factors  such  as  delays  or
failures  in  our  clinical  trials,  the  uncertainties  inherent  in  the  regulatory  approval  process  and  delays  in  achieving  manufacturing  or  marketing  arrangements
sufficient to commercialize our products. We may not complete our clinical trials or make regulatory submissions or receive regulatory approvals as planned. Also,
we may not be able to adhere to our anticipated schedule for the launch of any of our products. If we fail to achieve one or more milestones as contemplated, the
market price of our shares could decline.

We rely on third parties to conduct clinical trials, who may not perform their duties satisfactorily.

After  we  obtain  approval  to  conduct  clinical  trials  for  our  product  candidates,  we  rely  on  qualified  research  organizations,  medical  institutions  and  clinical
investigators to enroll qualified patients and conduct clinical trials. Our reliance on these third parties for clinical development activities reduces our control over
the  clinical  trial  process.  Furthermore,  these  third  parties  may  also  have  relationships  with  other  entities,  some  of  which  may  be  our  competitors.  If  these  third
parties  do  not  fulfill  their  contractual  obligations,  including  failing  to  meet  expected  deadlines,  we  may  not  succeed  or  may  experience  delays  in  our  efforts  to
obtain regulatory approvals and commercialize our vaccine candidates.

If any of our third-party suppliers or manufacturers cannot adequately meet our needs, our business could be harmed.

While we use raw materials and other key material supplies that are generally available from multiple commercial sources, certain raw materials that we use to
cultivate our influenza vaccines, such as embryonated eggs, are in short supply or difficult for suppliers to produce in accordance with our specifications If third-
party suppliers were to cease production or otherwise fail to supply us with quality raw materials, and if we were unable to contract on acceptable terms for these
materials with alternative suppliers, our ability to deliver our products to the market would be adversely affected.

In addition, if we fail to secure supply sources for some of the raw materials we use, our business could be harmed. For example, we sourced hepatitis B antigens
entirely from Beijing Tiantan Biological Products Co., Ltd. (“Beijing Tiantan”) for Bilive production. Although we are developing our own hepatitis B vaccine,
before  it  is  approved  to  be  commercialized,  we  have  to  rely  on  the  supplier  to  receive  hepatitis  B  antigen. We  and  Beijing  Tiantan  agreed  to  enter  into  annual
hepatitis  B  antigens  supply  agreements  after  our  previous  ten-year  exclusive  supply  framework  agreement  expired  in  October  2012.  Beijing  Tiantan  supplied
hepatitis B antigens to us from July 2013 to June 2015 based on the annual supply agreement. Thereafter, Beijing Tiantan ceased its hepatitis B antigens production
due to facilities renovation. We will work closely with Beijing Tiantan to resume production of Bilive. However, we do not have expected timetable to this.

From time to time, concerns are raised with respect to potential contamination of biological materials supplied to us. These concerns can tighten market conditions
for  materials  that  may  be  in  short  supply  or  available  from  limited  sources.  Moreover,  regulatory  approvals  to  market  our  products  may  be  conditioned  upon
obtaining certain materials from specified sources. Any efforts to substitute material from an alternate source may be delayed by pending regulatory approval of
such alternate source. Although we work to mitigate the risks associated with relying on sole suppliers, material shortages could impact product development and
production.

Our business is highly seasonal. This seasonality will contribute to our operating results fluctuating considerably throughout the year.

The  seasonality  in  our  business  is  expected  to  result  in  significant  quarterly  fluctuations  in  our  ongoing  operating  results.  For  example,  the  influenza  season
generally  runs  from  November  through  March  of  the  next  year  and  the  largest  percentage  of  influenza  vaccinations  is  administered  between  September  and
November of each year. As a result, we expect to realize most of our annual revenues from Anflu during this period.

We rely on a limited number of facilities for the manufacturing of our products in accordance with relevant regulatory requirements. Any disruption to our
existing manufacturing facilities or in the development of new facilities could reduce or restrict our sales and harm our reputation.

According  to  the  China  GMP  guidelines,  each  vaccine  product  can  only  be  produced  in  a  dedicated  production  facility.  In  Beijing,  we  conduct  the  primary
production  of  each  vaccine  in  a  dedicated  production  plant  at  our  Shangdi  site,  Changping  site  and  Daxing  Site,  and  secondary  filling  and  packaging  at  our
Changping site. In Dalian, we manufacture mumps and varicella vaccine at one facility. We do not maintain back-up facilities for our currently available products,
so we are dependent on our existing facilities for the continued operation of our business.

As  described  more  fully  above,  a  representative  of  Sinobioway  Medicine,  who  was  the  Chairman  of  the  board  of  directors  of  Sinovac  Beijing,  and  dozens  of
unidentified  individuals  forcibly  entered  Sinovac  Beijing’s  corporate  offices  and  disrupted  Sinovac  Beijing’s  hepatitis  A  vaccine  production  and  seasonal  flu
vaccine production by cutting power to our Shangdi site, seriously impacting Sinovac Beijing’s production and manufacturing processes and possibly damaging
product quality. Due to the actions of the representative of Sinobioway Medicine, Sinovac Beijing was forced to destroy the affected products. To maintain product
safety, Sinovac Beijing temporarily decided to stop production at the impacted facility, though production has resumed at this facility months later.

15

 
Natural disasters or other unanticipated catastrophic events, including power interruptions, water shortages, storms, fires, earthquakes and terrorist attacks, could
significantly  impair  our  ability  to  manufacture  products  and  operate  business  and  could  also  delay  our  research  and  development  activities.  Our  facilities  and
certain equipment located in these facilities would be difficult to replace and could require substantial replacement lead-time. Catastrophic events may also destroy
any inventory located in our facilities.

We do not maintain any business interruption insurance to cover lost income as a result of any such events. The occurrence of such events could materially and
adversely affect our business. We may build additional manufacturing facilities in the future. There can be no assurance, however, that we will be able to expand
our manufacturing capabilities to or realize the anticipated benefits of our new facilities. Any of these factors could reduce or restrict our sales, harm our reputation
and have a material adverse effect on our business, financial condition, results of operations and prospects.

We may need additional capital to upgrade or expand our production capabilities, to continue development of our product pipeline and to market existing and
future products on a large scale. We cannot guarantee that we will find adequate sources of capital in the future.

In the future, we may need to raise additional funds to finance equipment expenditures, to acquire intellectual property, to further expand the production facility for
our pipeline products, to continue the development and commercialization of our product candidates and to fund other corporate purposes. As of December 31,
2020, we had approximately $1,041 million in cash and cash equivalents. We expect to undertake significant future financings in order to:

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establish and expand manufacturing capabilities;

proceed with the research and development of other vaccine products, including clinical trials of new products;

commercialize our products, including the marketing and distribution of new and existing products;

seek and obtain regulatory approvals;

develop or acquire directly, or indirectly through acquisition of companies, other product candidates or technologies or companies;

protect our intellectual property; and

finance general, administrative and research activities that are not related to specific products under development.

In the past, we funded most of our research and development and other expenditures through government grants, working capital, bank loans and proceeds from
private placements and public offerings of our common shares. We may raise additional funds in the future because our current operating and capital resources may
be insufficient to meet future requirements.

Sinovac  Antigua  is  authorized  to  issue  100,000,000  common  shares,  99,294,743  of  which  are  issued  and  outstanding.  To  increase  the  number  of  authorized
common  shares,  we  must  amend  Sinovac  Antigua’s  Articles  of  Incorporation  and  By-laws,  which  requires  (i)  the  majority  of  common  shares  be  present  for  a
quorum, and (ii) affirmative vote of two thirds of common shares (excluding Series B Preferred Shares) present and voting at the general meeting. We cannot assure
that Sinovac Antigua will be able to collect sufficient affirmative votes to amend its Articles of Incorporation and By-laws. If we fail to increase the number of
authorized commons shares of Sinovac Antigua, we will lack common shares for future issuance of equity securities.

If we raise additional funds by issuing equity securities, it will result in further dilution to our existing shareholders because the shares may be sold when the market
price is low and shares issued in equity financing transactions will normally be sold at a discount to the current market price. Any additional equity securities issued
also  may  provide  for  rights,  preferences  or  privileges  senior  or  otherwise  preferential  to  those  of  holders  of  our  existing  common  shares.  Unforeseen  problems
including materially negative developments relating to, among other things, disease developments, product sales, new product rollouts, clinical trials, research and
development programs, our strategic relationships, our intellectual property, litigation, regulatory changes in our industry, the Chinese market generally or general
economic conditions, could interfere with our ability to raise additional funds or materially and adversely affect the terms upon which such funding is available.

If we raise additional funds by issuing debt securities, these debt securities would have rights, preferences and privileges senior to those of holders of our common
shares, and the terms of the debt securities issued could impose significant restrictions on our operations. If we raise additional funds through collaborations and
licensing arrangements, we might be required to relinquish significant rights to certain of our technologies, marketing territories, product candidates or products
that we would otherwise seek to develop or commercialize ourselves, or be required to grant licenses on terms that are not favorable to us. In the past, we have
received different types of grants from the PRC government to finance the research and development and facility investment of our vaccine products. We may not
receive additional grants in the future.

As described above, the actions of the Shareholder Group leading up to and at the 2017 AGM resulted in uncertainties as to the future direction of our company and
the composition of our board of directors. As a result of these uncertainties, we do not know whether additional financing will be available to us on commercially
acceptable terms when needed. If adequate funds are not available or are not available on commercially

16

 
acceptable terms, we may be unable to continue developing our products. In any such event, our ability to bring a product to market and obtain revenues could be
delayed and competitors could develop products sooner than we do. As a result, our business, financial condition and results of operations could be materially and
adversely affected.

We issued approximately 27.8 million common shares and 14.6 million Series B Preferred Shares in connection with the Exchange, and could issue additional
common  shares  or  Series  B  Preferred  Shares,  or  one  or  more  additional  series  of  preferred  shares  with  the  effect  of  diluting  existing  shareholders  and
impairing their voting and other rights

Our  articles  of  incorporation  authorize  the  issuance  of  up  to  100,000,000  common  shares  and  50,000,000  preferred  shares  with  designations,  rights,  privileges,
restrictions and conditions as may be determined from time to time by our board of directors. On February 22, 2019, in connection with the Exchange, we issued
approximately 27.8 million common shares and 14.6 million Series B Preferred Shares for the benefit of the holders of valid and outstanding Rights as of that date.
This issuance had the effect of significantly diluting the holdings of the shareholders that are not entitled to participate in the Exchange.

The Series B Preferred Shares share equally in all dividends and distributions made on our common shares and vote together with the common shares on all matters
brought before the shareholders, in each case on an as-converted basis and subject to applicable law. The Series B Preferred Shares are convertible into common
shares at our option, or automatically upon a successful shareholder vote to increase the authorized number of Sinovac Antigua’s common shares. Until the Series B
Preferred Shares are converted into common shares (or until the Series B Preferred Shares are listed on a nationally recognized securities exchange), they will earn
a preferred dividend equal to $0.41 per annum, payable quarterly in arrears. As a result of the ongoing litigation described elsewhere, there can be no assurance that
this preferred share dividend will be paid in a timely manner, if at all.

Our board is empowered, without shareholder approval, to issue one or more additional series of preferred shares with dividend, liquidation, conversion, voting or
other rights which could dilute the interest of, or impair the voting power of, our common shareholders. The issuance of such additional series of preferred shares,
or the issuance of additional common shares, could be used as a method of discouraging, delaying or preventing a change in control.

The PIPE Investors (as defined below) may exercise influence over us, including through their ability to influence matters requiring the approval of holders of
our Common Stock or Series A Preferred Stock.

On  July  2,  2018,  we  completed  a  private  placement  of  our  common  shares  (the  “PIPE”)  with  private  investors  Vivo  Capital  and  Advantech  Capital  (the  “PIPE
Investors”), whereby we received gross proceeds of $86.73 million. The proceeds of this offering will be used to increase our capabilities in research relating to
quality control and to build additional production facilities to support the development and commercialization of sabin inactivated polio vaccine (“sIPV”) -based
combination vaccine and other new vaccine projects. These investments have not yet been made due in part to the disruptive actions of certain of our shareholders
and the related litigation, which remains ongoing.

The shares owned by the PIPE Investors currently represent approximately 20.72% of the voting rights in respect of our share capital (after taking into account the
shares issued in the Exchange under the Rights Agreement). Further, the PIPE Investors are entitled to appoint a designee and observer to Sinovac Antigua’s board
of directors. Accordingly, the PIPE Investors may have the ability to influence the direction of Sinovac Antigua or the outcome of most matters submitted for the
vote of our shareholders. In any of these matters, the interests of the PIPE Investors may differ from or conflict with the interests of our other shareholders.

In connection with the PIPE, Sinovac Antigua entered into a shareholders agreement with the PIPE Investors, pursuant to which the PIPE Investors agreed to vote
their shares affirmatively in favor of all of the director designees nominated to serve on Sinovac Antigua’s board of directors, and the PIPE Investors agreed to
transfer restrictions with respect to their shares and a standstill provision, which, among other things, bars each PIPE Investor and its affiliates from acquiring in
excess of 10% of the share capital of Sinovac Antigua.

In addition, the PIPE Investors are in the business of making investments in companies and may, from time to time, acquire interests in businesses that directly or
indirectly compete with our business, as well as businesses that are significant existing or potential customers.

If we are unable to attract, train, retain and motivate our third-party marketing agents, sales of our products may be materially and adversely affected.

We rely on our third-party marketing agents, who are dispersed across China, to market our products to CDCs and other healthcare institutions. We believe that our
future  success  will  depend  on  the  dedication,  efforts  and  performance  of  our  third-party  marketing  agents.  There  are  only  limited  numbers  of  competent  and
qualified marketing agents in the China vaccine industry. Our competitors may provide commissions or other economic incentives to third-party marketing agents
significantly above the market standard, which may cause such agents to cease marketing our products. If we are unable to attract, train, retain and motivate our
marketing agents, sales of our products may be materially and adversely affected.

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Anti-corruption measures taken by the PRC government to correct corruptive practices in the vaccine industry could adversely affect our sales and reputation.

The PRC government has taken anti-corruption measures to correct corrupt practices. In the vaccine industry, such practices include, among others, acceptance of
kickbacks,  bribery  or  other  illegal  gains  or  benefits  by  the  officials  of  CDCs  in  connection  with  recommendation  of  a  certain  vaccine.  We  do  not  control  the
business activities of our third-party marketing agents, who might engage in corrupt practices to promote our products, which may be unknown to us. While we
maintain strict anti-corruption policies applicable to our internal sales force and third-party marketing agents, these policies may not be completely effective. If any
individual of our sales staff or any of our third-party marketing agents engages in corrupt practices and the PRC government takes enforcement action, our own
practices and the market agents’ practices may be checked or investigated. If this occurs, our sales and reputation may be materially and adversely affected.

Some  of  the  predecessor  shareholders  of  Sinovac  Beijing  were  enterprises  owning  state-owned  assets  (“EOSAs”).  Their  failures  to  comply  with  PRC  legal
requirements in asset or share transfers could, under certain circumstances, result in such transfers being invalidated by government authorities. If this occurs,
we could lose our ownership of intellectual property rights that are vital to our business as well as our equity ownership in Sinovac Beijing.

Sinovac Beijing is currently owned 73.09% by us and 26.91% by Sinobioway Medicine. The technologies related to our hepatitis A vaccine, hepatitis A and B
vaccine  and  influenza  vaccine  that  are  vital  to  our  business  were  directly  or  indirectly  transferred  to  us  by  Tangshan  Yian  Biological  Engineering  Co.,  Ltd.
(“Tangshan  Yian”).  Some  of  the  predecessor  shareholders  of  Sinovac  Beijing,  including  Shenzhen  Kexing  Biological  Engineering  Ltd.  (“Shenzhen  Kexing”),
Sinobioway Medicine, Tangshan Medicine Biotech Co., Ltd., Tangshan Yikang Biotech Co., Ltd. and Tangshan Yian, were EOSAs. Under applicable PRC laws,
when  EOSAs  sell,  transfer  or  assign  assets  or  equity  investments  in  their  possession  or  under  their  control  to  third  parties,  they  are  required  to  obtain  an
independent appraisal of the transferred assets or shares and file such appraisal with or obtain approval of such appraisal from PRC government authorities. Since
2004, EOSAs have also been required to make such assets or equity transfers at government-designated marketplaces. Certain of our acquisitions of intellectual
property rights and equity interests were subject to these requirements.

Tangshan Yian failed to file with the government authorities the appraisal of the hepatitis A vaccine technology that it transferred to Sinovac Beijing in 2001 as its
capital contribution to Sinovac Beijing. Under PRC laws, Tangshan Yian also failed to:

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obtain  the  appraisal  of  the  hepatitis  A  and  B  vaccine  technology  that  it  transferred  for  no  consideration  to  Beijing  Keding  Investment  Co.,  Ltd.  (“Beijing
Keding”) in 2002 (Beijing Keding subsequently transferred the technology to Sinovac Beijing as Beijing Keding’s capital contribution to Sinovac Beijing) and
to file such appraisal with the government authorities; and

obtain  the  appraisal  of  the  influenza  vaccine  technology  that  it  transferred  to  Sinovac  Beijing  in  2004  and  to  file  such  appraisal  with  the  government
authorities.

These failures subject us to the risk of losing ownership or control of these vaccine technologies.

In addition, before we acquired our 73.09% equity interest in Sinovac Beijing, it had undergone multiple changes in its shareholders and the amounts held by its
shareholders. Some of the EOSA shareholders of Sinovac Beijing have sold, transferred or assigned their respective equity interests in Sinovac Beijing without
fully  complying  with  laws  to  appraise  the  equity  interests,  to  file  such  appraisals  with  or  obtain  regulatory  approval  of  such  appraisals  from  PRC  government
authorities or to make equity interest transfers at the government-designated marketplaces as required for transactions completed after 2004. Similar to the asset
transfers, such failures subject us to the risk of losing the ownership or control of our equity interest in Sinovac Beijing.

PRC  government  authorities  may  take  court  actions  to  invalidate  the  transfers  of  the  assets  or  equity  investments  discussed  above  for  non-compliance  with
applicable appraisal, filing, approval and designated marketplace requirements. The government authorities could take such legal actions and such legal actions, if
commenced, could be successful. If these transfers are invalidated, we would lose title to these assets and investments. Because we depend on these technologies
and  because  Sinovac  Beijing  constitutes  core  part  of  our  operations,  our  loss  of  these  technologies  or  equity  interest  in  Sinovac  Beijing  would  materially  and
adversely affect our operations and financial condition.

The Rights Agreement and certain provisions of our By-laws may discourage a change of control.

In March 2016, we adopted the Rights Agreement that provides for the issuance of one right (a “Right”) for each of our outstanding common shares. We amended
and restated the Rights Agreement in February 2019 that provides for the issuance of one Right for each of our outstanding common shares and Series B Preferred
Shares.  In  February  2020,  we  further  amended  the  amended  and  restated  Rights  Agreement  to  extend  its  term  until  February  2021.  The  Rights  are  designed  to
assure that all of our shareholders receive fair and equal treatment in the event of any proposed takeover and to guard against partial tender offers, open market
accumulations, undisclosed voting arrangements and other abusive or coercive tactics to gain control of our company or our board of directors without paying all
shareholders a control premium. The Rights will cause substantial dilution to a person or group that acquires 15% or more of the aggregate total of common shares
and Series B Preferred Shares on terms not approved by our board of directors.

As described above, 1Globe is appealing the judgment of the Antigua Court that the Rights Agreement is valid. If 1Globe is successful, our shareholders will not
benefit from the protections of the Rights Agreement and our company may be subject to abusive or coercive tactics by

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certain shareholders to gain control of our company or our board of directors without paying all shareholders a control premium. On April 4, 2019, the Eastern
Caribbean  Supreme  Court,  Court  of  Appeal  issued  an  order  that  restrains  our  company  from  taking  further  action  under  the  Rights  Agreement,  including  the
distribution of the previously issued Exchange Shares, until the conclusion of such appeal. The appeal decision is pending as of the date of this annual report.

On February 21, 2021, we entered into a second amendment to the Rights Agreement to extend the expiration date of the rights contained therein from February 22,
2021 to February 22, 2022.

Some provisions of our By-laws may discourage, delay or prevent a change in control of our company or management that shareholders may consider favorable,
including provisions that authorize our board of directors to issue preferred shares in one or more series and to designate the price, rights, preferences, privileges
and restrictions of such preferred shares without any further vote or action by our shareholders.

These provisions could make it more difficult for a third party to acquire us, even if the third party’s offer may be considered beneficial by many shareholders. As a
result, shareholders may be limited in their ability to obtain a premium for their shares.

We depend on our key personnel, the loss of whom would adversely affect our operations. If we fail to attract and retain the talent required for our business,
our business will be materially harmed.

We had 1959 full-time employees as of December 31, 2020 and we depend to a great extent on principal members of our management and scientific teams. If we
lose  the  services  of  any  key  personnel,  in  particular  Mr.  Weidong  Yin,  the  loss  could  significantly  impede  the  key  decision  making  on  strategic  choices  and
operational  issues,  which  in  turn  will  harm  our  business  achievement.  We  do  not  have  any  key  man  life  insurance  policies.  We  have  entered  into  employment
agreements with our executive officers, under which they have agreed to restrictive covenants relating to non-competition and non-solicitation. These employment
agreements do not, however, guarantee that we will be able to retain the services of all our executive officers in the future.

As described above, a representative of Sinobioway Medicine, who was the Chairman of the board of directors of Sinovac Beijing, sent letters without the approval
of the full board of Sinovac Beijing, to Mr. Weidong Yin, Ms. Nan Wang, and other senior managers of Sinovac Beijing purporting to terminate their employment.
The board of directors of Sinovac Beijing subsequently determined, with the advice of PRC legal counsel, that this action did not conform with the joint venture
contract and the articles of association of Sinovac Beijing and was unlawful. As also described above, the representative of Sinobioway Medicine and dozens of
unidentified  individuals  forcibly  entered  Sinovac  Beijing’s  corporate  offices  and  limited  the  physical  movements  of  employees  in  Sinovac  Beijing’s  general
manager’s  office  and  finance  department  in  an  attempt  to  wrongfully  take  control  of  Sinovac  Beijing’s  official  seal,  legal  documents,  accounting  seal,  financial
documents and financial information systems. As a result of these actions, our ability to attract and retain the talent required for our business may be materially
harmed.

In  addition,  recruiting  and  retaining  additional  qualified  scientific,  technical  and  managerial  personnel  and  research  partners  will  be  critical  to  our  success.
Competition among biopharmaceutical and biotechnology companies for qualified employees in China is intense and turnover rates are high. There is a shortage of
employees in China with expertise in our areas of research and clinical and regulatory affairs, and this shortage is likely to continue. In addition, we have a limited
number of shares available for issuance under our share incentive award plan, which may affect our ability to retain and motivate our employees. We may not be
able  to  retain  existing  personnel  or  attract  and  retain  qualified  staff  in  the  future.  If  we  fail  to  hire  and  retain  personnel  in  key  positions,  we  may  be  unable  to
develop or commercialize our product candidates in a timely manner.

We may encounter difficulties in managing our growth, which could adversely affect our results of operations.

We have experienced rapid and substantial growth and, if such growth continues, will place a strain on our administrative and operational infrastructure. We also
plan to introduce new products to market that, if successful, could place a strain on our administrative and operational infrastructure. If we are unable to manage
this growth effectively, our business, results of operations or financial condition may be materially and adversely affected. Our ability to manage our operations and
growth effectively requires us to continue to improve our operational, financial and management controls, reporting systems and procedures and hiring programs.
We may not be able to successfully implement these required improvements.

International expansion may be costly, time-consuming and difficult. If we do not successfully expand internationally, our growth strategy and prospects would
be materially and adversely affected.

We have entered into selected international markets and intend to continue to expand the sales of our products into new international markets. In expanding our
business internationally, we have entered, and intend to continue to enter, markets in which we have limited or no experience and in which our brand may be less
recognized. To promote our brand and generate demand for our products to attract distributors in international markets, we expect to spend significantly more on
marketing and promotion than we do in our existing domestic markets when appropriate. We may be unable to attract a sufficient number of distributors, and our
selected distributors may not be suitable for selling our products.

In new markets, we may fail to anticipate competitive conditions that are different from those in our existing markets. These competitive conditions may make it
difficult  or  impossible  for  us  to  effectively  operate  in  these  markets.  If  our  expansion  efforts  in  existing  and  new  internal  markets  are  unsuccessful,  our  growth
strategy and prospects would be materially and adversely affected.

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We are exposed to other risks associated with international operations, including:

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political instability;

economic instability and recessions;

trade wars and trade disputes;

changes in tariffs;

difficulties of administering foreign operations generally;

limited protection for intellectual property rights;

obligations to comply with a wide variety of foreign laws and other regulatory approval requirements;

increased risk of exposure to terrorist activities;

financial condition, expertise and performance of our international distributors;

export license requirements;

unauthorized re-export of our products;

potentially adverse tax consequences;

inability to effectively enforce contractual or legal rights; and

exchange rate fluctuations or devaluation of foreign currencies.

We may undertake acquisitions which may have a material adverse effect on our ability to manage our business and may end up being unsuccessful.

Our growth strategy may involve the acquisition of new production lines, technologies, businesses, products or services or the creation of strategic alliances in areas
in  which  we  do  not  currently  operate.  These  acquisitions  and  strategic  alliances  could  require  that  our  management  develop  expertise  in  new  areas  or  new
geographies,  manage  new  business  relationships  and  attract  new  types  of  customers.  Furthermore,  acquisitions  may  require  significant  attention  from  our
management, and the diversion of our management’s attention and resources could have a material adverse effect on our ability to manage our business. We may
experience difficulties integrating acquisitions into our existing business and operations. Future acquisitions may also expose us to potential risks, including risks
associated with:

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the integration of new operations, services and personnel;

unforeseen or hidden liabilities;

the diversion of resources from our existing businesses and technologies;

our inability to generate sufficient revenue to offset the costs of acquisitions;

potential  loss  of,  or  harm  to,  relationships  with  employees  or  customers,  any  of  which  could  significantly  disrupt  our  ability  to  manage  our  business  and
materially and adversely affect our business, financial condition and results of operations; and

impairment of intangible assets acquired.

We may be unable to ensure compliance with United States economic sanctions laws, especially when we sell our products to distributors over which we have
limited control.

The U.S. Department of the Treasury’s Office of Foreign Assets Control administers certain laws and regulations that impose penalties upon U.S. persons and, in
some instances, foreign entities owned or controlled by U.S. persons, for conducting activities or transacting business with certain countries, governments, entities
or  individuals  subject  to  U.S.  economic  sanctions  (“U.S.  Economic  Sanctions  Laws”).  We  will  not  use  any  proceeds,  directly  or  indirectly,  from  sales  of  our
common shares, to fund any activities or business with any country, government, entity or individual with respect to which U.S. persons or, as appropriate, foreign
entities owned or controlled by U.S. persons, are prohibited by U.S. Economic Sanctions Laws from conducting such activities or transacting such business.

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However, we sell our products in international markets through independent non-U.S. distributors which are responsible for interacting with the end-users of our
products.  We  may  not  be  able  to  ensure  that  such  non-U.S.  distributors  fully  comply  with  all  applicable  U.S.  Economic  Sanctions  Laws.  As  a  result  of  the
foregoing, actions could be taken against us that could materially and adversely affect our reputation and have a material adverse effect on our business, financial
condition, results of operations and prospects.

We  may  be  classified  as  a  passive  foreign  investment  company,  which  could  result  in  adverse  U.S.  federal  income  tax  consequences  to  U.S.  Holders  of  our
common shares.

Based on the market price of our common shares and the value of our assets (subject to the discussion below) as well as the composition of our income and assets,
we do not believe we were a “passive foreign investment company,” or PFIC, for U.S. federal income tax purposes for our taxable year ended December 31, 2020.
However, the application of the PFIC rules is subject to uncertainty in several respects, and we cannot assure that we will not be a PFIC for any taxable year. In
general, a non-U.S. corporation will be a PFIC for any taxable year if either (i) at least 75% of its gross income for such year is passive income or (ii) at least 50%
of  the  value  of  its  assets  (generally  based  on  a  quarterly  average)  during  such  year  is  attributable  to  assets  that  produce  passive  income  or  are  held  for  the
production of passive income. We must make a separate determination after the close of each taxable year as to whether we were a PFIC for that year. In particular,
under normal circumstances, the value of our assets for purposes of the PFIC test for a particular taxable year would generally be determined by reference to the
market price of our common shares at the end of each quarter during such taxable year. As a result, fluctuations in the market price of our common shares (or
changes in the composition of our income or assets) may cause us to become a PFIC for any subsequent year. However, as a result of the suspension of trading in
our shares, we are unable to reference the actual market prices of our common shares in determining our PFIC status. As a result, we have based our valuation on
the  market  price  as  of  the  last  date  of  the  last  trading  day  of  our  common  shares  as  well  as  on  certain  financial  valuation  determinations  by  third  parties  in
connection  with  our  recent  financing  transactions.  We  cannot  provide  any  assurances  that  the  actual  value  of  our  shares  are  not  materially  different  on  actual
measurement  dates  and  as  to  whether  the  IRS  will  respect  our  approach.  This  uncertainty  will  continue  so  long  as  trading  in  our  shares  remains  suspended.  In
addition, the composition of our income and assets will be affected by how, and how quickly, we use the cash we generate from our operations or raise in any
offering. If we are a PFIC for any year during which a U.S. Holder (as defined in “Item 10. Additional Information — E. Taxation — United States Federal Income
Taxation”) holds our common shares, additional reporting requirements and certain adverse U.S. federal income tax consequences could apply to such U.S. Holder.
Please see “Item 10. Additional Information — E. Taxation — United States Federal Income Taxation — Passive Foreign Investment Company.”

Negative publicity regarding vaccinations in China may lead to lower demand for vaccination, which could in turn negatively affect our business, financial
condition and results of operations.

In December 2013, it was reported that several infants died shortly after receiving inoculations of hepatitis B vaccine produced by a domestic company in China.
NMPA  and  National  Health  and  Family  Planning  Commission  have  determined  that  the  inoculated  hepatitis  B  vaccines  comply  with  the  applicable  regulatory
standards. In March 2016, media reported on improperly stored vaccines illegally sold in Shandong province and all across China. The illegal distribution started in
2010  and  two  suspects  were  detained  by  police  in  2015.  Although  experts  from  the  World  Health  Organization  (“WHO”)  has  confidence  in  China’s  vaccine
industry and publicly clarified their position several times since news of this scandal broke, public concerns remain. In July 2018, Changchun Changsheng Life
Science Co., Ltd. was found by the government to have falsified production records. Although the government has determined to levy a $1.3 billion fine on the
company, such negative publicity has led to lower demand for vaccination in China in 2018, which has in turn negatively affected the whole vaccine industry.

As a foreign private issuer, we are subject to different U.S. securities laws and NASDAQ listing rules than domestic U.S. issuers.

As a foreign private issuer, we are exempt from the rules under the Exchange Act prescribing the furnishing and content of quarterly reports and proxy statements,
and officers, directors and principal shareholders are exempt from the reporting and short-swing profit recovery provisions contained in Section 16 of the Exchange
Act.  In  addition,  as  an  Antigua  and  Barbuda  company  listed  on  the  NASDAQ  Global  Select  Market,  we  are  subject  to  NASDAQ’s  corporate  governance
requirements. However, NASDAQ listing rules permit a foreign private issuer like us to elect to follow home country corporate governance practices in lieu of
certain NASDAQ corporate governance standards, subject to certain conditions. Certain corporate governance practices in Antigua and Barbuda, which is our home
country, may differ significantly from the NASDAQ standards. As a result of our status as a foreign private issuer, you may not be afforded the same information or
protections that would be made available to you were you investing in a domestic U.S. issuer.

Trading of our common shares on NASDAQ has been halted since February 22, 2019.

In  connection  with  the  Exchange  and  the  issuance  of  the  Exchange  Shares  into  the  Shareholder  2019  Rights  Exchange  Trust,  NASDAQ  implemented  a  halt  in
trading in Sinovac Antigua’s common shares in order to facilitate the orderly distribution of the Exchange Shares. In light of the ongoing litigation concerning the
Rights Agreement, there can be no assurance when or if this halt will be lifted. NASDAQ has continued listing standards that we must maintain on an ongoing
basis in order to continue the listing of our common shares. If NASDAQ determines that we fail to meet these continued listing requirements, our common shares
may be subject to delisting.

If our common shares are delisted and we are not able to list our common shares on another national securities exchange, we expect our securities would be quoted
on an over-the-counter market. If this were to occur, our shareholders could face significant material adverse consequences,

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including  limited  availability  of  market  quotations  for  our  securities  and  reduced  liquidity  for  the  trading  of  our  securities.  In  addition,  we  could  experience  a
decreased ability to issue additional securities and obtain additional financing in the future.

Risks Related to Government Regulation

We may not be able to comply with applicable GMP standards and other regulatory requirements, which could have a material adverse effect on our business,
financial condition and results of operations.

We are required to comply with applicable GMP regulations, which include, among other things, requirements relating to personnel, premises and equipment, raw
material  and  products,  qualification  and  validation,  document  management,  production  management,  quality  control  and  assurance  and  product  distribution  and
recall. Manufacturing facilities must be approved by governmental authorities before they can be used to commercially manufacture our products and are subject to
inspection  by  regulatory  agencies.  We  had  been  required  to  comply  with  the  new  GMP  standards  implemented  by  NMPA  since  March  1,  2011  and  all  vaccine
manufacturers were required to meet the new GMP standards and obtain certifications for their manufacturing facilities by December 31, 2013. Any manufacturer
that failed to meet the deadline were forced to suspend production.

We have obtained the new GMP certificates for all of our commercial production facilities. However, we cannot assure that we will be able to continue to meet the
applicable GMP standards and other regulatory requirements in the future.

In  addition,  in  light  of  the  incident  where  vaccines  were  illegally  sold  and  distributed  in  Shandong  province  and  other  provinces  around  China  in  2016,  the
government has changed policies and regulations related to the vaccine sales and distribution in China. Before the policy was issued, human vaccine sales were
halted in China for months. The vaccine purchase and delivery was resumed in second half of 2016. We are not able to estimate whether there will be any other
change of policies and regulations on our business in the future, which will negatively impact on business in the future.

The 2020 Chinese Pharmacopoeia came into effect on December 30, 2020. We have made a thorough assessment on the 2020 Chinese Pharmacopeia and updated
our operation procedures according to the new regulatory requirements to ensure full compliance.

If  we  fail  to  comply  with  applicable  regulatory  requirements  at  any  stage  during  the  regulatory  process,  including  following  any  product  approval,  we  may  be
subject to sanctions, including:

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fines;

product recalls or seizures;

injunctions;

refusal of regulatory agencies to review pending market approval applications or supplements to approval applications;

total or partial suspension of production;

civil penalties;

withdrawals of previously approved marketing applications; and

criminal prosecution.

We can only sell products that have received regulatory approvals. Many factors affect our ability to obtain such approvals.

Pre-clinical and clinical trials of our products, and the manufacturing and marketing of our products, are subject to extensive, costly and rigorous regulation by
governmental  authorities  in  the  PRC  and  in  other  countries.  Even  if  we  complete  pre-clinical  and  clinical  trials  successfully,  we  may  not  be  able  to  obtain
applicable regulatory approvals. We cannot market any product candidate until we have both completed our clinical trials and obtained the necessary regulatory
approvals for that product candidate.

Conducting clinical trials and obtaining regulatory approvals are uncertain, time-consuming and expensive processes. The process of obtaining required regulatory
approvals from NMPA and other regulatory authorities often takes many years and can vary significantly based on the type, complexity and novelty of the product
candidates. For example, it took us approximately ten years to develop and obtain regulatory approval to commercialize Healive, and it took us five and a half years
and four and a half years to develop and obtain regulatory approvals to commercialize Bilive and Anflu, respectively. EV71 vaccine took us eight years from 2008
to 2016 to develop and obtain regulatory approvals.

There can be no assurance that all of the clinical trials pertaining to our vaccines in development will be completed within the timeframes currently anticipated by
us. We could encounter difficulties in enrolling patients for clinical trials or encounter setbacks while conducting clinical trials that result in delays or cancellation.
Data  obtained  from  pre-clinical  and  clinical  studies  are  subject  to  varying  interpretations  that  could  delay,  limit  or  prevent  regulatory  approvals,  and  failure  to
observe  regulatory  requirements  or  inadequate  manufacturing  processes  are  examples  of  other  problems  that  could  prevent  approvals.  In  addition,  we  may
encounter delays or rejections in the event of additional regulation from future legislation, administrative action or changes in the NMPA policy or if unforeseen
health risks become an issue with the participants of clinical trials.

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Clinical trials may fail at any stage. Results of early trials frequently do not predict results of later trials, and acceptable results in early trials may not be repeated.
For these reasons, we do not know whether regulatory authorities will grant approval for any of our product candidates in the future. In addition, production permits
for our products are valid for five years and we need to apply for renewal six months prior to their expiration. The process to approve our renewal applications
could be lengthy and there is no assurance that we will be granted renewal in a timely manner or at all.

Delays  in  obtaining  NMPA  foreign  approvals  of  our  products  could  result  in  substantial  additional  costs  and  adversely  affect  our  ability  to  compete  with  other
companies. Even if regulatory approval is ultimately granted, we may not maintain the approval and the approval may be withdrawn. Any approval received may
also restrict the intended use and marketing of the product we want to commercialize.

Outside the PRC, our ability to market some of our potential products is contingent upon receiving marketing authorizations from the appropriate foreign regulatory
authorities. For example, our hepatitis A vaccine, Healive, can be supplied to certain international organizations and is eligible to participate into the tender process
in  some  countries  as  it  has  passed  the  WHO  prequalification  assessment  (“WHO  PQ”).  However,  there  are  still  countries  that  require  additional  marketing
authorization  to  sell  in  such  countries  despite  the  WHO  PQ  status.  These  foreign  regulatory  approval  processes  include  the  risks  associated  with  the  NMPA
approval process described above and may include additional risks.

Because the medical conditions that our vaccines are intended to prevent represent significant public health threats, we are at risk of governmental actions
detrimental to our business, such as product seizure, compulsory licensing and additional regulations.

In response to a pandemic or the perceived risk of a pandemic, governments in the PRC and other countries may take actions to protect their citizens that could
affect our ability to control the production and export of pandemic vaccines or otherwise impose burdensome regulations on our business. For example, an outbreak
of influenza and the recent COVID-19 could subject our manufacturing facilities to seizure by the PRC government. The PRC government might grant compulsory
licenses to allow our competitors to manufacture products that are protected by our patents or use our technology, using funds received from government agencies.

We deal with hazardous materials that may cause injury to others. These materials are regulated by environmental laws that may impose significant costs and
restrictions on our business.

Our research and development programs and manufacturing operations involve the controlled use of potentially harmful biological materials and other hazardous
materials. We cannot eliminate the risk of accidental contamination or injury to our employees or others from the use, manufacture, storage, handling or disposal of
hazardous materials and certain waste products. In the event of contamination or injury, we could be held liable for any resulting damages, and the liability could
exceed our resources or applicable insurance coverage we may have.

We are also subject to PRC laws and regulations governing the construction and operation of production facilities that may have an impact on the environment and
the use, manufacture, storage, handling or disposal of hazardous materials and waste products, such as the PRC Environmental Impact Assessment Law, the PRC
Prevention  and  Control  of  Water  Pollution  Law  and  the  PRC  Environmental  Protection  Law,  as  well  as  waste-disposal  standards  set  by  relevant  governmental
agencies.  It  is  likely  that  China  will  continue  to  adopt  stricter  pollution  controls  as  the  country  is  experiencing  increasingly  serious  environmental  pollution.
Although our facilities have passed previous environmental examination conducted by the Beijing Municipal Environment Protection Bureau, we cannot assure that
we will continue to pass similar environmental examinations on any future production facilities that we may construct.

We have already obtained the approval of the environmental impact assessment report from relevant regulatory authorities for our relevant construction plan of our
facilities, however, we cannot assure that we will continue to obtain the approval on environmental impact assessment report for any future production facilities that
we may construct. According to the PRC Environmental Impact Assessment Law, after the approval of previous environmental impact assessment report, if there is
any material change in the nature, scale, location, production technology used and measures adopted to prevent damages to ecology, new environmental impact
assessment reports need to be filed for approval. Moreover, we do not currently have a pollution and remediation insurance policy to mitigate any risk related to
environmental pollution or violation of environmental law.

Failure to commence development of land which we have been granted right to use within the required timeframe may cause us to lose our land use rights.

Sinovac Dalian was granted land use rights to two parcels of land, with an aggregate area of 95,686 square meters (approximately 1,030,000 square feet) located in
the Economic and Technical Development Zone of Dalian, Liaoning province by the local government. According to the relevant PRC regulations, a parcel of land
may be treated as idle land if development of the land has not been commenced within one year after the commencement date stipulated in the land use rights grant
contract or the issuance date of the construction land approval certificate. Land users can extend the deadline for commencing the construction work for one year.

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All of our current facilities of Sinovac Dalian are located at one of the two parcels of the land with an aggregated area of 55,606 square meters (598,582 square
feet). However, as of the date of this annual report, we have not commenced development of the other parcel of the land with 40,080 square meters (431,418 square
feet) which Sinovac Dalian was granted the right to use. The PRC government may treat the land as idle land, in which case we may be required to pay idle land
fees or penalties, change the intended use of the land, find another parcel of land, or even be required to forfeit the land to PRC government, any of which would
adversely affect our financial condition.

Negative  publicity  regarding  China-based  companies  listed  in  the  United  States  may  affect  the  trading  price  of  our  common  shares  and  result  in  increased
regulatory scrutiny of our business.

In the past, litigation and negative publicity surrounding companies with operations in China listed in the United States have resulted in declining stock prices for
such  companies.  Various  equity  research  organizations  have  published  reports  on  China-based  companies  after  examining  their  corporate  governance  practices,
related party transactions, sales practices and financial statements that have led to special investigations and stock suspensions on national exchanges. Any similar
scrutiny of us, regardless of merit, could result in a diversion of our management’s attention from managing our core business, negative publicity, potential costs to
defend ourselves against rumors, volatility and loss in the trading price of our common shares and increased directors’ and officers’ insurance premiums, any of
which could materially and adversely affect our business, financial condition and results of operations.

Uncertainties exist with respect to how the PRC Vaccine Administration Law may impact our current operations.

The  PRC  Vaccine  Administration  Law  became  effective  on  December  1,  2019.  It  is  China’s  first  legislation  dedicated  to  the  regulation  of  vaccine  industry.
According to the law, the supervision of vaccines will cover the whole lifecycle from vaccine development, production and distribution to vaccination. Specialized
inspection teams of pharmaceutical professionals will be established at the central and provincial levels to conduct the supervision work. An electronic information
system  will  also  be  set  up  to  make  all  information  on  vaccines  trackable  during  vaccine  production,  distribution  and  vaccination.  The  vaccine  tracking  system
requires vaccination data, including vaccine's information, expiry date and use date, the medical workers who issue the vaccines and their recipients, should be
recorded and retained for at least five years after its expiry. The law imposes tough punishments on wrongdoers, stipulating that people whose violations constitute
a crime shall bear heavier criminal responsibility. The move under the PRC Vaccine Administration Law could be a milestone in vaccine safety, while bringing
back  market  confidence  in  the  regulatory  system.  The  new  law  is  believed  to  be  able  to  enable  the  regulators  to  close  loopholes  and  rein  in  risks  in  vaccine
management and boost the confidence of the public in vaccine products manufactured in China. Since the Vaccine Administration Law was recently promulgated,
no detailed implementing rules have been promulgated so far, and it is unclear how this regulation will be interpreted, amended and implemented by the relevant
PRC  government  authorities.  In  addition,  PRC  judicial  and  administrative  authorities  have  significant  discretion  in  interpreting  and  implementing  statutory  and
contractual terms. We cannot predict how the new law will affect our business operations or future strategy.

Our Intellectual Property

If we are unable to protect our technologies from competitors with patents or other forms of intellectual property protection, our business may be harmed.

Our success depends, in part, on our ability to protect our proprietary technologies. We try to protect the technology that we consider important to our business by
filing patent applications and relying on trade secret and pharmaceutical regulatory protection, including our existing and potential vaccines.

We have a total of 68 issued patents and a number of pending patent applications relating to our vaccines in China. The process of seeking patent protection in
China can be lengthy and expensive and we cannot assure you that our pending patent applications, or any patent applications we may make in the future with
respect to other products, will result in issued patents, or that any patents issued in the future will be able to provide us with meaningful protection or commercial
advantage. Our patent applications might be challenged, invalidated or circumvented.

In  addition  to  patents,  we  rely  on  trade  secrets  and  proprietary  know-how  to  protect  our  intellectual  property.  We  have  entered  into  confidentiality  agreements
(which  include,  in  the  case  of  employees,  non-competition  provisions)  with  many  of  our  employees,  consultants,  outside  scientific  collaborators,  sponsored
researchers  and  other  advisors.  These  agreements  provide  that  all  confidential  information  developed  or  made  known  to  the  individual  during  the  course  of  the
individual’s  relationship  with  us  is  to  be  kept  confidential  and  not  disclosed  to  third  parties  except  in  specific  circumstances.  In  the  case  of  our  employees,  the
agreements provide that all of the technology which is conceived by the individual during the course of employment is our exclusive property. These agreements
may not provide meaningful protection or adequate remedies in the event of unauthorized use or disclosure of our proprietary information. In addition, third parties
could possibly independently develop information and techniques substantially similar to ours or otherwise gain access to our trade secrets.

Our  current  or  potential  competitors,  many  of  whom  have  substantial  resources  and  have  made  substantial  investments  in  competing  technologies,  could
develop products that compete directly with our products despite our intellectual property rights.

Intellectual  property  rights  and  confidentiality  protections  in  China  may  not  be  as  effective  as  in  the  United  States  or  other  developed  countries.  Policing
unauthorized use of proprietary technology is difficult and expensive, and we might need to resort to litigation to enforce or defend

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patents issued to us or to determine the enforceability, scope and validity of our proprietary rights or those of others. The experience and capabilities of PRC courts
in  handling  intellectual  property  litigation  varies,  and  outcomes  are  unpredictable.  Further,  such  litigation  may  require  significant  expenditures  of  cash  and
management efforts and could harm our business, financial condition and results of operations. An adverse determination in any such litigation could materially
impair our intellectual property rights and may harm our business, prospects and reputation.

We may be exposed to infringement or misappropriation claims by third parties which, if determined adversely to us, could cause substantial liabilities to us, or we
may be unable to sell some of our products. Please see “Item 4. Information on the Company — B. Business Overview — Intellectual Property and Proprietary
Technology.”

Third parties may bring intellectual property infringement claims against us in the future.

Our  commercial  success  depends  significantly  on  our  ability  to  operate  without  infringing  the  patents  and  other  proprietary  rights  of  third  parties.  Even  after
reasonable  investigation,  we  may  not  know  with  certainty  whether  we  have  infringed  upon  a  third  party’s  patent  due  to  the  complexity  of  patent  claims,  the
inadequacy of patent clearance search procedures in the PRC and the fact that a third party may have filed a patent application without our knowledge while that
product was under development by us.

Patent  applications  are  maintained  in  secrecy  until  their  publication  18  months  after  the  filing  date.  The  publication  of  discoveries  in  the  scientific  or  patent
literature frequently occurs substantially later than the date on which the underlying discoveries were made and patent applications were filed. China, similar to
many other countries, adopts the first-to-file system under which the first party to file a patent application (instead of the first to invent the subject invention) may
be awarded a patent. There may also be technologies licensed to us or acquired by us that are subject to infringement, misappropriation or other claims by others
which could damage our ability to rely on such technologies.

If a third party claims that we infringe upon its proprietary rights, any of the following may occur:

•

•

•

•

•

we may become involved in time-consuming and expensive litigation, even if the claim is without merit;

we may become liable for substantial damages for past infringement if a court decides that our technology infringes upon a third- party’s patent;

a court may prohibit us from selling or licensing our product without a license from the patent holder, which may not be available on commercially reasonable
terms, if at all, or which may require us to pay substantial royalties or grant cross licenses to our patents;

we may have to reformulate our product so that it does not infringe upon others’ patent rights, which may not be possible or could be very expensive and time-
consuming; and

we may be subject to injunctions prohibiting the manufacture and sale of our products or the use of our technologies which are deemed as infringing.

If any of these events occurs, our business will suffer and the market price of our common shares could decline.

The success of our business may depend on licensing vaccine components from, and entering into collaboration arrangements with, third parties. We cannot be
certain that our licensing or collaboration efforts will succeed or that we will realize any revenue from them.

The success of our business strategy depends, in part, on our ability to enter into licensing and collaboration arrangements and to effectively manage the resulting
relationships. Our ability to enter into agreements with commercial partners depends in part on our ability to convince them of the value of our technology and
know-how. This may require substantial time and effort. While we anticipate expending substantial funds and management effort, we cannot assure that strategic
relationships will result or that we will be able to negotiate additional strategic agreements in the future on acceptable terms, if at all.

We may incur significant financial commitments to collaborators in connection with potential licenses and sponsored research agreements. In addition, we may not
be able to control the areas of responsibility undertaken by our strategic partners and may be adversely affected should these partners prove to be unable to carry a
product candidate forward to full commercialization or should they lose interest in dedicating the necessary resources toward developing any such product quickly.

Third parties may terminate our licensing and other strategic arrangements if we do not perform as required under these arrangements. Generally, we expect that
agreements for rights to develop technologies will require us to exercise diligence in bringing product candidates to market and may require us to make milestone
and  royalty  payments  that,  in  some  instances,  could  be  substantial.  Our  failure  to  exercise  the  required  diligence  or  make  any  required  milestone  or  royalty
payments could result in the termination of the relevant license agreement, which could have a material adverse effect on us and our operations. In addition, these
third parties breach or terminate their agreements with us or otherwise fail to conduct their activities in connection with our relationships in a timely manner. If we
or our partners terminate or breach any of our licenses or relationships, we may:

•

•

lose our rights to develop and market our product candidates;

lose patent and/or trade secret protection for our product candidates;

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•

•

•

experience significant delays in the development or commercialization of our product candidates;

not be able to obtain any other licenses on acceptable terms, if at all; and

incur liability for damages.

Licensing arrangements and strategic relationships in our industry can be complex, particularly with respect to intellectual property rights. Disputes may arise in the
future  regarding  ownership  rights  to  technology  developed  by  or  with  other  parties.  These  and  other  possible  disagreements  between  us  and  third  parties  with
respect  to  our  licenses  or  our  strategic  relationships  could  lead  to  delays  in  the  research,  development,  manufacture  and  commercialization  of  our  product
candidates. These disputes could also result in litigation or arbitration, both of which are time-consuming and expensive. Moreover, these third parties may pursue
alternative technologies or product candidates either on their own or in strategic relationships with others in direct competition with us.

Any  cessation  or  suspension  of  our  collaborations  with  scientific  advisors  and  academic  institutions  may  increase  our  costs  in  research  and  development,
lengthen our new vaccines development process and lower our efficiency in new products development.

We work with scientific advisors and academic collaborators who assist us in some of our research and development efforts. Some of our pre-clinical and research
programs rely heavily on such collaborators and we generally benefit considerably from the resources, technology and experience these collaborations can provide.
These scientists are not, however, our employees and may have other commitments that limit their availability to us. If a conflict of interest arises between their
work for us and their work for another entity, we may lose the services of these scientists and institutions. Any cessation or suspension of our collaborations with
scientific  advisors  and  academic  institutions  may  increase  our  research  and  development  costs,  lengthen  our  new  vaccine  development  process  and  lower  our
efficiency  in  new  products  development.  In  addition,  although  our  scientific  advisors  and  academic  collaborators  generally  sign  agreements  not  to  disclose  our
confidential information, valuable proprietary knowledge may become publicly known which would compromise our competitive advantage.

We may lose the right to use “科兴” (Kexing) on our vaccine products and/or as part of our trade name.

Since 2001, Sinovac Beijing has been using “科兴” (Kexing) as part of its Chinese trade name. Sinovac Dalian began to use “科兴” (Kexing) as part of its Chinese
trade name in 2010. Shenzhen Kexing successfully registered “科兴” trademark in China for Class 5 (Pharmaceuticals) under the International Classification of
Goods  and  Services  in  2001.  To  protect  our  interest  in  using  “ 科 兴 ”  in  our  trade  names,  we  applied  to  register  “ 科 兴 ”  in  China  for  Class  42  (Scientific  &
Technological Services &Research) in 2006 and the PRC Trademark Office of the State Administration for Industry and Commerce approved our application in
2010.

As of the date of this annual report, the “科兴” trademark registered and owned by Shenzhen Kexing has not been identified as “Well-known Trademark” by the
relevant PRC authorities. If the “科兴” trademark owned by Shenzhen Kexing is ever officially identified as a “Well-Known Trademark” in the future, however, we
may be subject to trademark infringement claim for the use of “科兴” in our trade names. It is possible that we might lose our ability to use the “科兴” trademark in
our trade names due to a successful trademark infringement claim, which may adversely affect our ability to maintain and protect our brands, cause us to incur
litigation costs and divert resources and management attention.

Risks Related to Doing Business in China

Adverse  changes  in  political,  economic  and  other  policies  of  the  PRC  government  could  have  a  material  adverse  effect  on  the  overall  economic  growth  of
China, which could reduce the demand for our products and materially and adversely affect our competitive position.

We conduct a significant part of our operations in China, and generated approximately 71.6% of our sales in China in 2020. Accordingly, our business, financial
condition, results of operations and prospects are affected significantly by economic, political and legal developments in China. The Chinese economy differs from
the economies of most developed countries in many respects, including:

•

•

•

•

•

•

•

the extent of government involvement;

the level of development;

the growth rate;

the control of foreign exchange;

the allocation of resources;

an evolving regulatory system; and

a lack of sufficient transparency in the regulatory process.

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While the Chinese economy has experienced significant growth in the past 30 years, growth has been uneven, both geographically and among various sectors of the
economy. The PRC government has implemented measures to encourage economic growth and guide the allocation of resources. 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 may be adversely affected by
government control over capital investments or changes in tax regulations that are applicable to us.

The  Chinese  economy  has  been  transitioning  from  a  planned  economy  to  a  more  market-oriented  economy.  Although  in  recent  years  the  PRC  government  has
implemented  measures  emphasizing  the  utilization  of  market  forces  for  economic  reform,  the  reduction  of  state  ownership  of  productive  assets  and  the
establishment of sound corporate governance in business enterprises, the Chinese government still owns a substantial portion of the productive assets in China. The
PRC government also exercises significant control over Chinese economic growth by allocating of resources, controlling payment of foreign currency-denominated
obligations, setting monetary policy and providing preferential treatment to particular industries or companies. Efforts by the PRC government to slow the pace of
growth of the Chinese economy could result in hospitals spending less, which in turn could reduce demand for our products.

The political relationship among foreign countries and China is subject to sudden fluctuations and periodic tensions. Changes in political conditions in China and
changes in the state of foreign relations are difficult to predict and could adversely affect our product export and international collaborations. This could lead to a
decline in our profitability in the future.

Although the Chinese economy has grown significantly in the past decade, that growth may not continue, as evidenced by the slowing of the growth of the Chinese
economy  since  2012.  Any  adverse  change  in  the  economic  conditions  or  government  policies  in  China,  including  the  economic  slowdown  in  2020  due  to  the
COVID-19 pandemic, could have a material adverse effect on overall economic growth and the level of healthcare investments and expenditures in China, which in
turn could lead to a reduction in demand for our products and consequently have a material adverse effect on our businesses.

Future changes in laws, regulations or enforcement policies in China could adversely affect our business.

Laws, regulations and enforcement policies in China, including those regulating our business, are evolving and subject to future change. Future changes in laws,
regulations or administrative interpretations, or stricter enforcement policies by the PRC government, could impose more stringent requirements on us, including
fines  or  other  penalties.  Changes  in  applicable  laws  and  regulations  may  also  increase  our  operating  costs.  Compliance  with  such  requirements  could  impose
substantial additional costs or otherwise have a material adverse effect on our business, financial condition and results of operations. These changes may relax some
requirements, which could be beneficial to our competitors or could lower market entry barriers and increase competition. Further, regulatory agencies in China
may, sometimes abruptly, change their enforcement practices.

Prior enforcement activity, or lack of enforcement activity, is not necessarily predictive of future actions. Any enforcement actions against us could have a material
adverse effect on us and the market price of our common shares. In addition, any litigation or governmental investigation or enforcement proceedings in China may
be protracted and may result in substantial costs and diversion of resources and management attention, negative publicity, damage to our reputation and decline in
the price of our common shares.

We  rely  on  dividends  paid  by  our  PRC  subsidiaries  for  our  cash  needs.  If  they  are  unable  to  pay  us  sufficient  dividends  due  to  statutory  or  contractual
restrictions on their abilities to distribute dividends to us, our various cash needs may not be met.

We are a holding company, and we rely on the dividends paid by our PRC subsidiaries, including majority-owned subsidiaries Sinovac Beijing, Sinovac Dalian and
Sinovac  LS  and  our  wholly  owned  subsidiary  Sinovac  Biomed  Co.,  Ltd.  (“Sinovac  Biomed”)  for  our  cash  needs,  including  the  funds  necessary  to  pay  any
dividends and other cash distributions to our shareholders, service any debt we may incur and pay our operating expenses. The payment of dividends in the PRC is
subject to limitations. Regulations in the PRC currently permit payment of dividends by our PRC subsidiaries only out of accumulated profits as determined in
accordance  with  accounting  standards  and  regulations  in  China.  For  instance,  in  accordance  with  the  regulations  in  China,  Sinovac  Beijing,  Sinovac  Dalian,
Sinovac  LS  and  Sinovac  Biomed  are  required  to  set  aside  at  least  10%  of  its  after-tax  profits  each  year  to  contribute  to  its  reserve  fund  until  the  accumulated
balance of such reserve fund reaches 50% of the registered capital of each company.

Sinovac Beijing, Sinovac Dalian, Sinovac LS and Sinovac Biomed are also required to set aside, at the discretion of their respective board of directors, a portion of
their annual income after taxes to their employee welfare and bonus funds. These funds reduce the ability of the subsidiaries to pay dividends in cash.

In addition, if Sinovac Beijing, Sinovac Dalian, Sinovac LS or Sinovac Biomed incurs debt on its own in the future, the instruments governing the debt may restrict
either company’s ability to pay dividends or make other distributions to us.

Restrictions on currency exchange may limit our ability to receive and use our revenues effectively.

We receive over 72% of our revenues in renminbi, which currently is not a freely convertible currency. A portion of our revenues may be converted into other
currencies to meet our foreign currency obligations, including, among others, payment of dividends declared by our

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subsidiaries. Under China’s existing foreign exchange regulations, Sinovac Beijing, Sinovac LS, Sinovac Dalian and Sinovac Biomed are able to pay dividends in
foreign  currencies  without  prior  approval  from  the  State  Administration  of  Foreign  Exchange  (“SAFE”)  by  complying  with  certain  procedural  requirements.
However, the PRC government could take future measures to restrict access to foreign currencies for current account transactions.

Our PRC subsidiaries’ ability to obtain foreign exchange is subject to significant foreign exchange controls and, in the case of amounts under the capital account,
requires  the  approval  of  and/or  registration  with  PRC  government  authorities,  including  SAFE.  In  particular,  if  we  finance  our  PRC  subsidiaries  by  means  of
foreign currency from us or other foreign lenders, the amount is not allowed to exceed the difference between the amount of total investment and the amount of the
registered  capital  as  approved  by  the  Ministry  of  Commerce  and  registered  with  SAFE.  Such  loans  must  also  be  registered  with  SAFE  as  foreign  debts.  If  we
finance our PRC subsidiaries by means of additional capital contributions from offshore, the amount of these capital contributions must first be approved by the
relevant  government  approval  authority.  These  limitations  could  affect  the  ability  of  our  PRC  subsidiaries  to  obtain  foreign  exchange  through  debt  or  equity
financing.

Fluctuation in the value of the renminbi may have a material adverse effect on your investment.

The  value  of  the  renminbi  against  the  U.S.  dollar,  Euro  and  other  currencies  is  affected  by,  among  other  things,  changes  in  China’s  political  and  economic
conditions and China’s foreign exchange policies. The PRC government allows the renminbi to fluctuate within a narrow and managed band against a basket of
certain foreign currencies.

Since  June  2010,  the  Renminbi  has  fluctuated  against  the  U.S.  dollar.  Since  October  1,  2016,  the  RMB  has  joined  the  International  Monetary  Fund’s  basket  of
currencies that make up the Special Drawing Right, along with the U.S. dollar, the Euro, the Japanese yen and the British pound. Since the fourth quarter of 2016,
the RMB depreciated significantly in the backdrop of a surging U.S. dollar and persistent capital outflows of China. With the development of the foreign exchange
market and progress towards interest rate liberalization and Renminbi internationalization, the PRC government may announce further changes to the exchange rate
system and the RMB could appreciate or depreciate significantly in value against the U.S. dollar.

It is difficult to predict how long such depreciation of the RMB against the U.S. dollar may last and when and how the relationship between the renminbi and the
U.S. dollar may change again. The PRC government indicated that it will make the foreign exchange rate of the renminbi more flexible and widen the trading band
of  renminbi,  which  increases  the  possibility  of  sharp  fluctuations  in  renminbi’s  value  in  the  future  as  well  as  the  unpredictability  associated  with  renminbi’s
exchange  rate.  There  remains  significant  international  pressure  on  the  PRC  government  to  adopt  an  even  more  flexible  currency  policy,  which  could  result  in
further and more significant fluctuations of the renminbi against foreign currencies.

As the majority of our costs and expenses are denominated in renminbi, a resumption of the appreciation of the renminbi against the U.S. dollar would further
increase our costs in U.S. dollar terms. In addition, as our operating subsidiaries in China receive revenues in renminbi, any significant depreciation of the renminbi
against the U.S. dollar may have a material adverse effect on our revenues in U.S. dollar terms and financial condition, and the value of, and any dividends payable
on, our common shares. For example, to the extent that we need to convert U.S. dollars into renminbi for our operations, appreciation of the renminbi against the
U.S.  dollar  would  have  an  adverse  effect  on  the  renminbi  amount  we  receive  from  the  conversion.  Conversely,  if  we  decide  to  convert  our  renminbi  into  U.S.
dollars for the purpose of making payments for dividends on our common shares or for other business purposes, appreciation of the U.S. dollar against the renminbi
would have a negative effect on the U.S. dollar amount available to us.

Our business benefits from certain government tax incentives. Expiration, reduction or elimination of these incentives will increase our tax expenses and in
turn decrease our net income.

Pursuant to the PRC Enterprise Income Tax Law (the “EIT Law”) and its implementation rules, both domestic companies and the foreign invested enterprises (the
“FIEs”) are subject to a unified income tax rate of 25%. Preferential tax treatments will continue to be granted to high and new technology enterprises that conduct
business in encouraged sectors, whether FIEs or domestic companies.

Sinovac Beijing reconfirmed its “High and New Technology Enterprises,” or HNTE, status and obtained the corresponding certificate in 2020 for a period of three
years.  As  a  result,  subject  to  satisfaction  of  applicable  criteria  as  confirmed  by  the  competent  authorities,  Sinovac  Beijing  was  entitled  to  a  reduced  enterprise
income tax (“EIT”) rate of 15% from 2020 to 2022. Sinovac Dalian reconfirmed its HNTE status in 2020 for another three-year period, which is from 2020 to 2022.
Sinovac LS, being confirmed as a HNTE in 2020 for a period of three years, is subject to the preferential EIT of 15% from 2020 to 2022. The PRC government
could eliminate any of these preferential tax treatments before their scheduled expiration. Expiration, reduction or elimination of such tax incentives will increase
our tax expenses and in turn decrease our net income.

Under the EIT Law, dividends payable by us and gains on the disposition of our shares may be subject to PRC taxation.

If we were considered a PRC resident enterprise under the EIT Law, our shareholders who are deemed non-resident enterprises may be subject to the EIT at the rate
of 10% upon the dividends payable by us or upon any gains realized from the transfer of our shares, if such income is deemed derived from China, provided that (i)
such foreign enterprise investor has no establishment or premises in China or (ii) it has an establishment or premises in China but its income derived from China
has no real connection with such establishment or premises. If we were required under the EIT Law to withhold PRC income tax on our dividends payable to our
non-PRC enterprise shareholders, or if any gains

28

 
realized  from  the  transfer  of  our  shares  by  our  non-PRC  enterprise  shareholders  were  subject  to  the  EIT,  such  shareholders’  investment  in  our  shares  would  be
materially and adversely affected.

PRC regulations relating to investments in offshore companies by PRC residents may subject our PRC-resident beneficial owners or our PRC subsidiaries to
liability or penalties, limit our ability to inject capital into our PRC subsidiaries or limit our PRC subsidiaries’ ability to increase their registered capital or
distribute profits.

SAFE  promulgated  the  Circular  on  Relevant  Issues  Concerning  Foreign  Exchange  Control  on  Domestic  Residents’  Offshore  Investment  and  Financing  and
Roundtrip Investment through Special Purpose Vehicles (“SAFE Circular 37”) on July 4, 2014, which replaced the former circular commonly known as “SAFE
Circular 75” promulgated by SAFE on October 21, 2005. SAFE Circular 37 requires PRC residents to register with the local branches of SAFE in connection with
their direct establishment or indirect control of an offshore entity, for the purpose of overseas investment and financing, with such PRC residents’ legally owned
assets or equity interests in domestic enterprises or offshore assets or interests, referred to in SAFE Circular 37 as a “special purpose vehicle.”

SAFE Circular 37 further requires amendment to the registration in the event of any significant changes with respect to the special purpose vehicle, such as increase
or decrease of capital contributed by PRC individuals, share transfer or exchange, merger, division, or other material events. In the event that a PRC shareholder
holding interests in a special purpose vehicle fails to fulfill the required SAFE registration, the PRC subsidiaries of that special purpose vehicle may be prohibited
from making profit distributions to the offshore parent and from carrying out subsequent cross-border foreign exchange activities, and the special purpose vehicle
may be restricted in its ability to contribute additional capital into its PRC subsidiary.

Failure  to  comply  with  the  various  SAFE  registration  requirements  described  above  could  result  in  liability  under  PRC  law  for  evasion  of  foreign  exchange
controls.  According  to  the  Notice  on  Further  Simplifying  and  Improving  Policies  for  the  Foreign  Exchange  Administration  of  Direct  Investment  released  on
February  13,  2015  by  SAFE,  local  banks  will  examine  and  handle  foreign  exchange  registration  for  overseas  direct  investment,  including  the  initial  foreign
exchange registration and amendment registration, under SAFE Circular 37 from June 1, 2015.

Mr. Weidong Yin has made the required SAFE registration with respect to his investments in our company. However, we may not be aware of the identities of all of
our beneficial owners who are PRC residents. We do not control our beneficial owners and cannot assure you that all of our PRC-resident beneficial owners will
comply with SAFE Circular 37 and subsequent implementation rules. The failure of our beneficial owners who are PRC residents to register or amend their foreign
exchange registrations in a timely manner pursuant to SAFE Circular 37 and subsequent implementation rules, or the failure of future beneficial owners of our
company who are PRC residents to comply with the registration procedures set forth in SAFE Circular 37 and subsequent implementation rules, may subject such
beneficial owners or our PRC subsidiaries to fines and legal sanctions.

Furthermore, since it is unclear how any future regulation concerning offshore or cross-border transactions will be implemented by the relevant PRC government
authorities, we cannot predict how these regulations will affect our business operations or future strategy. Failure to register or comply with relevant requirements
may also limit our ability to contribute additional capital to our PRC subsidiaries and limit our PRC subsidiaries’ ability to distribute dividends to our company.
These risks may have a material adverse effect on our business, financial condition and results of operations.

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

Pursuant to SAFE Circular 37, PRC residents who participate in share incentive plans in overseas non-publicly-listed companies due to their position as director,
senior  management  or  employees  of  the  PRC  subsidiaries  of  the  overseas  companies  may  submit  applications  to  SAFE  or  its  local  branches  for  the  foreign
exchange registration with respect to offshore special purpose companies. Our directors, executive officers and other employees who are PRC residents and who
have been granted options and restricted shares were able to follow SAFE Circular 37 to apply for the foreign exchange registration before our company became an
overseas listed company.

Since our company has become an overseas listed company, we and our directors, executive officers and other employees who are PRC residents and who have
been granted options are subject to the Notice on Issues Concerning the Foreign Exchange Administration for Domestic Individuals Participating in Stock Incentive
Plan  of  Overseas  Publicly  Listed  Company,  issued  by  SAFE  in  February  2012,  according  to  which,  employees,  directors,  supervisors  and  other  management
members  participating  in  any  stock  incentive  plan  of  an  overseas  publicly  listed  company  who  are  PRC  residents  are  required  to  register  with  SAFE  through  a
domestic qualified agent, which could be a PRC subsidiary of such overseas listed company, and complete certain other procedures.

Failure to complete SAFE registrations may subject them to fines and legal sanctions and may also limit the ability to make payments under our equity incentive
plans or receive dividends or sales proceeds related thereto, or our ability to contribute additional capital into our subsidiaries in China and limit such subsidiaries’
ability to distribute dividends to us. We also face regulatory uncertainties that could restrict our ability to adopt additional equity incentive plans for our directors
and employees under PRC law.

In addition, the State Administration for Taxation has issued circulars concerning employee share options or restricted shares. Under these circulars, employees
working in the PRC who exercise share options, or whose restricted shares or restricted share units, or RSUs, vest, will be subject to PRC individual income tax.
The PRC subsidiaries of an overseas listed company have obligations to file documents related to employee

29

 
share options or restricted shares with relevant tax authorities and to withhold individual income taxes of those employees related to their share options, restricted
shares or RSUs. If the employees fail to pay, or the PRC subsidiaries fail to withhold, their income taxes according to relevant laws, rules and regulations, the PRC
subsidiaries may face sanctions imposed by the tax authorities or other PRC government authorities.

PRC regulation of loans and direct investment by offshore holding companies to PRC entities may delay or prevent us from making loans or additional capital
contributions to our PRC operating subsidiaries and affiliated entities.

In funding our PRC subsidiaries, we must comply with PRC legal requirements relating to foreign debt registration and to PRC foreign-investment companies’
“registered capital” and “total investment” ratio. “Registered capital” refers to the capital contributed to or paid into a PRC foreign-investment company in cash or
in  kind,  and  “total  investment”  refers  to  the  estimated  amount  of  the  total  capital  as  required  to  enable  and  support  the  full  scale  operation  of  a  PRC  foreign-
investment company when the company is initially established. The amounts of a PRC foreign-investment company’s registered capital and total investment are set
forth in the company’s articles of association and joint venture contract (in the case of a Sino-foreign joint venture) and approved by the competent government
authority  in  advance.  The  balance  between  the  required  “total  investment”  and  the  “registered  capital”  can  be  satisfied  by  borrowings  or  loans  obtained  by  the
company. In another word, such loans cannot exceed the difference between such company’s registered capital and total investment.

Loans by us or Sinovac Hong Kong to Sinovac Beijing, Sinovac LS, Sinovac Dalian or Sinovac Biomed cannot exceed the difference between such company’s
registered capital and total investment. The total investment and registered capital can be adjusted after the establishment of a foreign-investment companies with
the approvals of all the shareholders or unanimous approvals of the board of directors. In the case of Sinovac Beijing, Sinovac Dalian or Sinovac LS, the approval
from its respective minority shareholders is required to increase the amount of total investment. Further, all the loans from the overseas lenders must be registered
with SAFE as foreign debts.

We  may  also  decide  to  finance  our  PRC  subsidiaries  by  making  additional  capital  contributions.  These  additional  contributions  must  be  approved  by  the
government approval authority and, in the case of Sinovac Beijing or Sinovac Dalian and Sinovac LS, the approval from its respective minority shareholders. We
cannot assure you that we will be able to obtain these government registrations or approvals, or the approval of the minority shareholders on a timely basis, if at all,
with respect to future loans or additional capital contributions by us to our subsidiaries. If we fail to obtain such registrations or approvals, our ability to capitalize
our  PRC  operations  would  be  negatively  affected,  which  could  adversely  and  materially  affect  the  liquidity  of  our  subsidiaries  and  our  ability  to  expand  the
business.

Because we are incorporated under Antigua and Barbuda law, substantially all of our operations, property and assets are located in China and all of our major
shareholders, directors and officers and substantially all of their assets are located outside of the United States, you may be unable to protect your shareholder
rights under U.S. law in a court in the United States.

We are incorporated in Antigua and Barbuda. Our corporate affairs are governed by our Articles of Incorporation and By-laws and by the International Business
Corporations  Act  and  common  law  of  Antigua  and  Barbuda.  The  rights  of  shareholders  to  take  legal  action  against  our  directors,  officers  and  us,  actions  by
minority shareholders and the fiduciary responsibilities of our directors to us are to a large extent governed by the International Business Corporations Act and
common law of Antigua and Barbuda. The International Business Corporations Act was modelled on Canadian company law and the common law of Antigua and
Barbuda is derived from comparatively limited judicial precedent in Antigua and Barbuda, as well as from English common law, which has persuasive, but not
binding, authority on a court in Antigua and Barbuda.

The rights of our shareholders and the fiduciary responsibilities of our directors under Antigua and Barbuda law are not as clearly established as they would be
under statutes or judicial precedents in the United States. Among other things, Antigua and Barbuda has a less developed body of securities laws as compared to the
United  States,  and  provides  significantly  less  protection  to  investors.  Further,  Antigua  and  Barbuda’s  body  of  securities  law,  and  the  experience  of  its  courts  in
addressing corporate and securities law issues of a type often experienced by public companies, is likely less developed than that of some of the other jurisdictions
where publicly traded China-based companies are incorporated, such as the Cayman Islands.

It may be difficult or impossible for you to bring an action against us or our directors or officers in Antigua and Barbuda courts or to enforce or protect your rights
under U.S. securities laws or otherwise. Even if you are successful in bringing an action of this kind, you may be unable to enforce a judgment against our assets or
the assets of our directors and officers under the laws of Antigua and Barbuda.

There is doubt as to whether Antigua and Barbuda courts would enforce judgments of United States courts obtained in actions against us or our directors or officers
that are predicated upon the civil liability provisions of the Securities Act, or in original actions brought against us or such persons predicated upon the Securities
Act. There is no treaty in effect between the United States and Antigua and Barbuda providing for such enforcement, and there are grounds upon which Antigua
and  Barbuda  courts  may  not  enforce  judgments  of  United  States  courts.  In  addition,  Antigua  and  Barbuda  corporations  may  not  have  standing  to  initiate  a
shareholder derivative action before the federal courts of the United States.

PRC courts may recognize and enforce foreign judgments in accordance with the PRC Civil Procedures Law based either on treaties between the PRC and the
country where the judgment is made or on reciprocity between jurisdictions. If there are no treaties or reciprocity arrangements between the PRC and a foreign
jurisdiction  where  a  judgment  is  rendered,  matters  relating  to  the  recognition  and  enforcement  of  the  foreign  judgment  in  the  PRC  may  be  resolved  through
diplomatic  channels.  The  PRC  does  not  have  any  treaties  or  other  arrangements  with  the  United  States  or  Antigua  and  Barbuda  that  provide  for  the  reciprocal
recognition and enforcement of foreign judgments. As a result, it is generally difficult to enforce in the PRC a judgment rendered by a U.S. or Antigua and Barbuda
court.

30

 
As a result of all of the above, as well as the fact that substantially all of our property, assets and operations are located in China and all of our major shareholders,
directors and officers and substantially all of their assets are located outside of the United States, you may be unable to protect your shareholder interests through
actions against us or our officers, directors or major shareholders.

ITEM 4. INFORMATION ON THE COMPANY

A.

History and Development of the Company

Our  legal  and  commercial  name  is  Sinovac  Biotech  Ltd.  Our  principal  executive  offices  are  located  at  No.  15,  Zhi  Tong  Road,  Zhongguancun  Science  &
Technology Park, Changping District, Beijing 102200, PRC. Our telephone number at this address is +86-10-5693-1800. Our registered address is located at the
office of APN Corporate and Management Services Limited, Unit #4 Bryson’s Complex, Friars Hill Road, St. John’s, Antigua. Our agent for service of process in
the United States is Cogency Global Inc., located at 122 East 42nd Street, 18th Floor, New York, NY 10168.

We  are  a  holding  company  and  conduct  our  business  through  our  73.09%  majority-owned  subsidiary  Sinovac  Beijing,  our  59.24%  majority-owned  subsidiary
Sinovac LS, our 68% majority-owned subsidiary Sinovac Dalian, and our wholly owned subsidiaries Sinovac Biomed, Sinovac Hong Kong and Sinovac Biotech
(Singapore) Pte. Ltd. (“Sinovac Singapore”). Sinovac Beijing was incorporated on April 28, 2001, Sinovac LS was incorporated on May 7, 2009, Sinovac Dalian
was established on January 19, 2010, Sinovac Biomed was incorporated on April 16, 2015, Sinovac Hong Kong was incorporated on October 21, 2008 and Sinovac
Singapore was incorporated on August 6, 2020.

We were incorporated in Antigua and Barbuda on March 1, 1999 as an Antiguan company with limited liability under the laws of Antigua and Barbuda pursuant to
the International Business Corporations Act. Before we adopted our current name on October 21, 2003, we were called Net-Force System Inc. and were primarily
engaged in the online gaming business. In September 2003, we issued ten million new shares to Lily Wang, one of our then principal shareholders to acquire a 51%
equity interest in Sinovac Beijing. Ms. Wang had contracted to purchase these shares from certain of Sinovac Beijing’s then shareholders for cash immediately
before the above 51% share transfer. However, this 51% equity interest in Sinovac Beijing was transferred to us directly from those shareholders and was recorded
under  applicable  PRC  law  transfer  documents  as  a  cash  transaction.  Lily  Wang  was  responsible  for  paying  the  cash  to  those  shareholders.  The  transfer  of  the
Sinovac Beijing equity interest to us was registered and approved by PRC government authorities in August 2004. In September 2004, we acquired an additional
20.6%  equity  interest  in  Sinovac  Beijing  for  approximately  $3.3  million  in  cash.  In  October  2011,  we  further  acquired  an  additional  1.53%  equity  interest  in
Sinovac Beijing by contributing the dividends declared to Sinovac Hong Kong but unpaid in amount of RMB18.6 million ($2.9 million). We currently own 73.09%
of the equity interests in Sinovac Beijing and Sinobioway Medicine owns a 26.91% interest.

In January 2004, we entered into a share purchase agreement with Heping Wang and issued him 3.5 million of our common shares and a promissory note in the
amount of $2.2 million to acquire from him a 100% equity interest in Tangshan Yian. Mr. Wang had contracted to purchase these shares from Tangshan Yian’s then
two shareholders immediately before the above 100% share transfer. However, this 100% equity interest in Tangshan Yian was transferred to us directly from those
shareholders and was recorded under applicable PRC law transfer documents as a cash transaction. Heping Wang was responsible for paying the cash to the two
shareholders. The transfer of the Tangshan Yian equity interest by Mr. Wang to us was registered and approved by PRC government authorities in November 2004.

In  the  first  quarter  of  2008,  we  issued  and  sold  an  aggregate  of  2.5  million  common  shares  at  $3.90  per  share  to  Sansar  Capital  Management.  We  received
approximately $9.75 million in gross proceeds from this private placement of our common shares.

In October 2008, we established Sinovac Hong Kong, a wholly owned subsidiary focused primarily on registering and distributing current and newly-developed
vaccine products in Hong Kong and exporting our products abroad. In addition, Sinovac Hong Kong seeks research and development collaboration opportunities
with third parties in Hong Kong.

In May 2009, Sinovac LS was incorporated with a registered capital of $5 million. In June 2016, our board of directors approved an additional capital contribution
of $4.6 million, which has been fully provided.

In November 2009, we entered into a joint venture agreement with Dalian Jin Gang Group to establish Sinovac Dalian. In January 2010, we established Sinovac
Dalian which focuses on the research, development, manufacturing and commercialization of live attenuated vaccines, such as varicella and mumps vaccines for
human use. Pursuant to the joint venture agreement, we made an initial cash contribution of RMB60.0 million ($9.2 million) in exchange for a 30% equity interest
in Sinovac Dalian and Dalian Jin Gang Group made an asset contribution of RMB140.0 million ($21.5 million), including manufacturing facilities, production lines
and land use rights, in exchange for the remaining 70% interest in Sinovac Dalian.

In December 2010, we purchased an additional 25% equity interest in Sinovac Dalian from Dalian Jin Gang Group for consideration of RMB50.0 million ($7.7
million).  In  2014,  the  board  of  directors  passed  a  resolution  to  increase  our  capital  contribution  to  Sinovac  Dalian  in  the  amount  of  RMB80.0  million  ($12.3
million), which aimed to increase Sinovac’s equity ownership from 55% to 67.86%. RMB50.0 million ($7.7 million) was initially provided through foreign debt
with the expectation of a debt to equity swap of the total amount after the remaining RMB30.0 million ($4.6 million) is provided to Sinovac Dalian. In 2016, an
additional RMB30.0 ($4.6 million) million was made to Sinovac Dalian through foreign debt and subsequently the debt to equity swap for a total of RMB80.0
million ($12.3 million) was completed. In October 2016, our equity ownership in Sinovac Dalian increased to 67.86%.

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In February 2010, we closed a public offering of our common shares. We issued and sold 11.5 million common shares at $5.75 per share. We received net proceeds
of approximately $61.8 million, after deducting underwriting discounts and commissions and offering expenses payable.

In 2013, we increased the capital investment to Tangshan Yian with the total amount of $4 million, which we lent to Tangshan Yian in 2010. In the same year, we
lent Tangshan Yian $1 million to be used for sales and marketing spending and other corporate purposes and operational activities. In December 2015, we entered
into an equity interest transfer agreement with Beijing Kuai Le Xing Biotech Co., Ltd. to transfer our 100% equity interest in Tangshan Yian to Beijing Kuai Le
Xing Biotech Co., Ltd. for consideration of RMB13.0 million ($2.0 million). The disposal of Tangshan Yian was completed in February 2016.

In April 2015, we established Sinovac Biomed, which is 100% owned by Sinovac Hong Kong. Sinovac Biomed focuses on the distribution of vaccine products as
well as providing consulting services in the vaccination industry.

In March 2016, we adopted the Rights Agreement. Pursuant to the Rights Agreement, subject to limited exceptions, upon (i) a person or group obtaining ownership
of 15% or more of our common shares or (ii) the commencement or announcement of an intention to make a tender offer or exchange offer, the consummation of
which would result in the beneficial ownership by a person or group of 15% or more of our common shares, in each case, without the approval of our board of
directors, each Right will entitle the holders, other than the Acquiring Person, to buy, at an exercise price of $30.00, one one-thousandth of a share of our newly
created series A junior participating preferred shares (the “Series A Preferred Shares”). Holders are entitled to receive, in lieu of each one one-thousandths of a
Series A Preferred Share, common shares having a market value at that time of twice the Right’s exercise price. Our board of directors is entitled to redeem the
Rights at $0.001 per Right at any time before the Rights are exercisable. We refer to the person who acquired 15% or more of the outstanding common shares of
Sinovac  Antigua  as  the  “Acquiring  Person.”  As  described  above,  on  March  5,  2018,  Sinovac  Antigua  filed  a  lawsuit  in  the  Court  of  Chancery  of  the  State  of
Delaware seeking a determination whether the Shareholder Group had triggered the Rights Agreement by forming a group holding approximately 45% of Sinovac
Antigua’s outstanding shares, in excess of the plan’s threshold of 15%, and acting in concert prior to the 2017 AGM.

On  February  18,  2019,  after  reviewing  the  judgment  of  the  Antigua  Court  of  December  19,  2018  and  considering  all  additional  facts  known  to  the  board  of
directors, our board of directors determined that the Collaborating Shareholders became Acquiring Persons as defined under the Rights Agreement, and that their
conduct resulted in a Trigger Event under the Rights Agreement. As a result, the Rights held by the Collaborating Shareholders were deemed void.

Pursuant  to  the  Rights  Agreement,  the  board  of  directors  elected  to  exchange  each  valid  and  outstanding  Right  held  by  Sinovac  Antigua’s  shareholders  (not
including the Collaborating Shareholders) for an Exchange Share. The total Exchange Shares to be received by any holder will be rounded up to the nearest whole
common share and rounded down to the nearest whole Series B preferred share. On February 22, 2019, in order to facilitate the Exchange, approximately 27.8
million Common Shares and approximately 14.6 million Series B Preferred Shares were issued into a trust for the benefit of the holders of the valid and outstanding
Rights (not including the Collaborating Shareholders). As of the close of trading in the United States on February 22, 2019, the Rights converted into the right to
receive the Exchange Shares and will no longer trade with the common shares, and will not otherwise trade on any securities market.

In February 2019, we amended and restated the Rights Agreement. Pursuant to the amended and restated Rights Agreement, subject to limited exceptions, upon (i)
a person or group obtaining ownership of 15% or more of the aggregate total of our common shares and Series B Preferred Shares then issued and outstanding or
(ii)  the  commencement  or  announcement  of  an  intention  to  make  a  tender  offer  or  exchange  offer,  the  consummation  of  which  would  result  in  the  beneficial
ownership by a person or group of 15% or more of the aggregate total of our common shares and Series B Preferred Shares then issued and outstanding, in each
case, without the approval of our board of directors, each Right will entitle the holders, other than the acquiring person, to buy, at an exercise price of $20.00, one
one-thousandth of a share of our newly created series C junior participating preferred shares (the “Series C Preferred Shares”). Holders are entitled to receive, in
lieu of each one one-thousandths of a Series C Preferred Share, common shares and/or Series B Preferred Shares having a market value at that time of twice the
Right’s exercise price. Our board of directors is entitled to redeem the Rights at $0.001 per Right at any time before the Rights are exercisable. We refer to the
person who acquired 15% or more of the outstanding common shares or Series B Preferred Shares of Sinovac Antigua as the “acquiring person.” In February 2020
and 2021, we further amended the amended and restated Rights Agreement to extend its term until February 2022.

On March 6, 2019, the Delaware Chancery Court entered a status quo order providing that Sinovac Antigua not distribute any of the Exchange Shares from the trust
until the final disposition of the pending Delaware litigation or further order of the Court. On April 4, 2019, the Eastern Caribbean Supreme Court, Court of Appeal
issued an order that restrains Sinovac Antigua from taking further action under the Rights Agreement, including the distribution of the previously issued Exchange
Shares to the holders of valid Rights, until the conclusion of 1Globe Capital, LLC’s appeal of the December 19, 2018 Judgment of the Antigua Court. On April 8,
2019,  the  Delaware  Chancery  Court  stayed  the  Delaware  litigation  pending  the  outcome  of  1Globe’s  appeal  of  the  Antigua  Judgment.  1Globe’s  appeal  of  the
Antigua Court’s Judgment was heard on September 18, 2019, and the appeal decision is pending as of the date of this annual report. See “Legal and Administrative
Proceedings” for additional information. 

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In May 2020, Prime Success and Vivo Capital invested $15 million in our wholly owned subsidiary, Sinovac LS, to further the development of CoronaVac. The two
investors each loaned $7.5 million in the form of a convertible loan that bore interest, or, at the investor’s election, converted into 7.5% of the total equity interest of
Sinovac LS. Later each of Prime Success and Vivo Capital exercised its right to convert its convertible loan into 7.5% of the total equity interests of Sinovac LS.
After  the  investment  made  by  Sino  Biopharmaceutical  Limited  as  described  below,  Prime  Success  and  Vivo  Capital  each  holds  approximately  6.3%  stake  in
Sinovac LS.

On August 6, 2020, we established Sinovac Singapore, a wholly owned subsidiary focuses primarily on registering and distributing current and newly-developed
vaccine products in Singapore and exporting our products abroad. In addition, Sinovac Singapore seeks research and development collaboration opportunities with
third parties in Asia.

In November 2020, we increased our equity ownership of Sinovac Dalian from 67.86% to 68%, by converting RMB46.6 million ($7.0 million) debt into equity.

In December 2020, Sino Biopharmaceutical Limited, an innovative research and development driven pharmaceutical conglomerate in China, through its affiliates,
invested approximately $500 million in exchange for approximately 15% equity interest in Sinovac LS in funding for further development, capacity expansion and
manufacturing of the CoronaVac. After this investment, our equity ownership of Sinovac LS decreased to 59.24%.

For additional information regarding our principal capital expenditures, see “— D. Property, Plants and Equipment” and “Item 5. Operating and Financial Review
and Prospects —B. Liquidity and Capital Resources — Capital Expenditures.”

The SEC maintains an Internet site that contains our reports, proxy and information statements, and other information that we filed electronically with the SEC at
http:// www.sec.gov.

Investor  inquiries  should  be  directed  to  us  at  the  address  and  telephone  number  of  our  principal  executive  offices  set  forth  above.  Our  website  is
http://www.sinovac.com. The information contained on our website does not form part of this annual report.

B.

Business Overview

We are a fully integrated China-based biopharmaceutical company that focuses on research, development, manufacturing and commercialization of vaccines that
protect against human infectious diseases including, without limitation, hepatitis A, hepatitis B, hand foot and mouth disease (“HFMD”) caused by EV71, seasonal
influenza, H5N1 and H1N1 pandemic influenza, coronavirus, varicella and mumps. In 2002, we launched our first product, Healive, which was the first inactivated
hepatitis A vaccine developed, produced and marketed by a China-based manufacturer. In 2005, we received regulatory approvals for the production of Bilive in
China, a combined hepatitis A and B vaccine, and Anflu, a split viron influenza vaccine. In April 2008, we received the regulatory approval for the production in
China of our whole viron H5N1 pandemic influenza (avian flu) vaccine, which is the only vaccine approved for sale to the Chinese national vaccine stockpiling
program.

In  September  2009,  we  were  granted  a  production  license  for  Panflu.1,  which  was  the  first  approved  vaccine  in  the  world  against  the  influenza  A  H1N1  virus
(swine flu). In December 2011, Sinovac Dalian obtained the production license from NMPA for its mumps vaccine product and launched the mumps vaccine in late
2012. In December 2015, NMPA issued the new drug certificate and production license for Inlive, our EV71 vaccine. In January 2016, NMPA issued the GMP
certificate  and  Inlive,  our  EV71  vaccine,  was  commercially  launched  in  China  in  June  2016.  In  February  2021,  NMPA  granted  a  conditional  marketing
authorization  for  CoronaVac,  our  COVID-19  vaccine  in  individuals  aged  18  and  above.  As  of  the  date  of  this  annual  report,  CoronaVac  is  being  used  under
emergency use approval in Indonesia, Brazil, Turkey and Chile and we are also actively seeking regulatory approval of CoronaVac in other countries and regions
around the world in an effort to maximize global accessibility and affordability of the COVID-19 vaccine.

Our pipeline consists of various vaccine candidates in the pre-clinical and clinical development phases in China. We obtained the approvals to conduct clinical trials
of PPV, sIPV, and quadrivalent influenza vaccine (“QIV”) in May 2014, November 2015 and November 2016, respectively. And the new drug applications for PPV,
sIPV and QIV were received by NMPA in June 2017, January 2019 and March 2019, respectively. NMPA approved and issued a product license for our varicella
vaccine, QIV vaccine and PPV vaccine in December 2019, June 2020 and December 2020, respectively. We initiated the development of CoronaVac, an inactivated
vaccine against COVID-19, on January 28, 2020 and began rolling submission to NMPA since September 2020 and NMPA carried out rolling reviews when the
submission was made. On February 5, 2021, NMPA granted a conditional marketing authorization to us for CoronaVac in individuals aged 18 and above.

Our Products

We specialize in the research, development, manufacturing and commercialization of vaccines for infectious diseases with significant unmet medical need. Set forth
below is a chart that outlines our current marketed products and those that we have developed or are developing.

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(1) Our Panflu whole viron pandemic influenza vaccine did not undergo phase III clinical trials because none were required by the relevant authorities in order to

receive regulatory approval.

(2) Our Panflu split viron pandemic influenza Vaccine did not undergo phase III clinical trials because none were required by the relevant authorities in order to

receive regulatory approval.

(3) Our mumps vaccine did not undergo clinical trials because none were required by the relevant authorities.

(4) Our COVID-19 vaccine, CoronaVac, has been granted the conditional marketing authorization in China. In other countries outside China, CoronaVac has been

granted either the emergency use approval or conditional marketing authorization.

•

•

•

Healive. In May 2002, we obtained the final PRC regulatory approval for the production of Healive, the first inactivated hepatitis A vaccine developed in
China. The hepatitis A virus, which is endemic in China and other developing countries, primarily impacts the liver by causing it to swell and preventing it
from functioning properly. The disease is highly contagious and can be spread by close personal contact, consuming contaminated food or drinking water that
has been contaminated by hepatitis A virus. According to the WHO, as no specific treatment exists for hepatitis A, prevention is the most effective approach
against  the  disease.  In  February  2008,  the  PRC  government  included  hepatitis  A  vaccine  into  its  national  immunization  program,  and  announced  plans  to
expand  vaccination  to  newborns  nationwide  by  the  end  of  2010.  Our  production  line  to  manufacture  our  hepatitis  vaccines,  Healive  and  Bilive,
interchangeably has an aggregate combined production capacity of approximately 10 million doses annually. We are selling Healive in Asia and Latin America
and Mediterranean region.

Bilive. In June 2005, we obtained the final PRC regulatory approval for the production of Bilive, the first combined inactivated hepatitis A and B vaccine
developed and marketed in China. Bilive is a combination vaccine formulated with purified inactivated hepatitis A virus antigen, which we manufacture, and
recombinant (yeast) hepatitis B surface antigen, which we source from a third-party supplier. Recipients under China’s vaccination program must privately pay
for Bilive vaccinations. Bilive is designed for boost immunization or for users in the private-pay market who prefer the convenience of one inoculation rather
than two. Similar to hepatitis A, hepatitis B is endemic in China, a major disease worldwide and a serious global public health issue. A substantial percentage
of people infected with the hepatitis B virus carry chronic or lifelong infections. The chronically infected are at a high risk of death from cirrhosis of the liver
or liver cancer. We are the only supplier in China that produces a combined inactivated hepatitis A and B vaccine. Our production line to manufacture our
hepatitis vaccines, Healive and Bilive, interchangeably has an aggregate combined production capacity of approximately 10 million doses annually.

Anflu. In October 2005, we received the final approval from NMPA to produce Anflu, a vaccine against influenza. We began marketing Anflu in September
2006. The primary influenza vaccine used worldwide is the split viron vaccine, which contains virus particles disrupted by detergent treatment. The market
penetration  of  the  seasonal  flu  vaccine  in  China  is  significantly  below  that  in  the  developed  markets.  We  are  the  first  Influenza  Vaccine  Supply  (“IVS”)
taskforce member from a developing country that collaborates with world-class partners in influenza vaccine research. We didn’t supply season flu vaccine in
2018 due to the production disruptions resulting from the actions of the representative of Sinobioway Medicine. Further, Sinovac Beijing was forced to destroy
the affected products. To maintain product safety, Sinovac Beijing temporarily suspended production at the impacted facility. The production of Anflu resumed
at  this  facility  in  2019.  Our  production  line  to  manufacture  our  flu  vaccines,  Anflu,  QIV,  Panflu  and  Panflu.1,  interchangeably  has  an  annual  production
capacity of approximately 15 million doses of Anflu. Our Anflu products are sold to Asia, Africa, and Mediterranean region.

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•

•

•

•

•

•

•

•

•

Panflu. In April 2008, we were granted a production license for Panflu by NMPA. Panflu is the first and only approved vaccine available in China against the
H5N1 influenza virus. The vaccine is approved for supply within China to the Chinese national vaccine stockpiling program and may not be sold directly to
the  Chinese  commercial  market.  Panflu  is  also  registered  for  sale  in  Hong  Kong.  Our  production  line  to  manufacture  our  flu  vaccines,  Anflu,  Panflu  and
Panflu.1,  interchangeably  has  an  annual  production  capacity  of  approximately  20  million  doses  of  Panflu  given  the  yield  of  virus  strain  received  from  the
WHO. We produced Panflu for government reservation since 2008, and we started recognizing revenue in 2010.

Split  viron  pandemic  influenza  vaccine.  Our  split  viron  pandemic  influenza  vaccine  has  been  developed  in  conjunction  with  our  whole  viron  pandemic
influenza  vaccine.  Split  viron  vaccines  are  considered  to  have  a  better  safety  profile  than  whole  viron  vaccines,  both  of  which  are  for  the  governmental
stockpiling program. This product has been developed to address the needs of young children, who may be more susceptible to adverse reactions to whole
viron pandemic influenza vaccine than to a split viron vaccine. In November 2011, we were granted the production license of split viron pandemic influenza
vaccine that is to be used among the teenagers aged from 12 to 17.

Panflu.1. In September 2009, we were granted a production license for Panflu.1 by the NMPA. Panflu.1 is the first approved vaccine in the world against the
influenza  A  H1N1  virus.  We  started  to  sell  Panflu.1  in  September  2009  but  has  not  generated  revenue  since  2011,  and  Panflu.1  is  not  likely  to  generate
revenues in the foreseeable future. Panflu.1 is also registered for sale in Mexico.

Mumps vaccine. Mumps is a viral disease of the human species caused by mumps virus, which poses a significant threat to human health in the developing
countries. In September 2012, we were granted a production license for mumps vaccine. We began to sell mumps vaccine in December of 2012.

Inlive. EV71 causes HFMD among children under ten years old. HFMD is a common and usually mild childhood disease; however, HFMD caused by EV71
has shown a higher incidence of neurologic involvement, and a higher acute fatal incidence. There have been a number of outbreaks of HFMD caused by
EV71  in  the  Asia-Pacific  region  since  1997  including  China,  Malaysia,  Singapore,  Australia,  Vietnam  and  Taiwan.  There  is  no  identified  treatment  for
enterovirus  infections.  We  started  our  research  and  development  of  the  EV71  vaccine  in  2008.  In  December  2009,  NMPA  accepted  our  application  to
commence human clinical trials and on December 23, 2010, we obtained the approval from NMPA to commence clinical trials. In 2013, we completed all
three phases of clinical trials. On December 30, 2015, NMPA issued the new drug certificate and production license for our EV71 vaccine. On January 25,
2016,  NMPA  issued  the  GMP  certificate  for  Inlive.  We  have  been  granted  eleven  patents  relating  to  the  EV71  vaccine  in  China.  Inlive  primarily  targets
children from six months old to three years old, with each child requiring a total of two doses one month apart from another.

Varicella vaccine. Varicella is a highly contagious infectious disease caused by the varicella-zoster virus (herpesvirus 3, Human). It usually affects children, is
spread by direct contact or respiratory route via droplet nuclei and is characterized by the appearance on the skin and mucous membranes of successive crops
of lesions that are easily broken and become scabbed. Varicella is relatively benign in children, but may be complicated by pneumonia and encephalitis in
adults. We had completed the pre-clinical studies of a human vaccine against varicella. The clinical trial application was filed with NMPA in January 2013 and
obtained the clinical trial license in October 2015. A phase I clinical trial was conducted and completed in 2016 and a phase III trial was completed in 2017.
The production license application was filed with NMPA in November 2017. The clinical site inspection was completed in 2018. The technical review on the
registration  dossier  was  also  conducted  in  2018  and  supplementary  documents  were  issued  and  responded  to  during  the  year.  In  December  2019,  NMPA
approved and issued a product license for our varicella vaccine, and we began to sell varicella vaccine in April 2020.

Pneumococcal polysaccharide vaccine (“PPV”). PPV is a vaccine used to prevent streptococcus pneumoniae (pneumococcus) infections, such as pneumonia
and septicemia among adults aged 65 or older, adults with serious long-term health problems, smokers, and children older than two years with serious long-
term health problems. We filed an application for clinical trials to NMPA in February 2011 and obtained the approval to commence clinical trials in May 2014.
On December 2, 2020 the NMPA approved and issued a product license for our 23-valent PPV vaccine to prevent the infection by streptococcus pneumonia in
adults  and  children  aged  two  years  old  and  above,  which  is  our  first  bacterial  vaccine  product  approved  so  far,  broadening  the  potential  of  our  product
portfolio. The commercial production of PPV has started and the first few batches were delivered in the beginning of 2021.

Quadrivalent influenza vaccine (“QIV”). Different  from  the  trivalent  influenza  vaccine,  which  includes  an  influenza  A  H1N1  virus,  an  influenza  A  H3N2
virus and one influenza B virus, QIV is designed to protect against four different flu viruses; two influenza A viruses and two influenza B viruses. These two
very different lineages of B viruses circulate during most seasons. Adding another B virus to the vaccine aims to give broader protection against circulating flu
viruses. We initiated the development of a QIV in May 2013. Following the completion of preclinical studies, we applied for the clinical license from NMPA.
The approval to conduct human clinical trial was issued by NMPA in November 2016. Phase III clinical trial has been completed. The preliminary results of
the phase III clinical trial showed that the vaccine is safe and immunogenic. The site inspection was completed in March 2020. On June 24, 2020, NMPA
issued a product license for our QIV vaccine.

COVID-19 vaccine (“CoronaVac”). We initiated the development of a vaccine against COVID-19 on January 28, 2020. The application for clinical trials was
submitted to NMPA on March 13, 2020. NMPA implemented a concurrent review on the full submission and granted the approval for clinical trials on April
13, 2020. The phase I clinical trial commenced on April 16, 2020. The phase I and II human studies on

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healthy  adults  aged  18  to  59  and  elderly  adults  aged  60  and  above  were  conducted  in  China  and  enrolled  144  participants  in  the  phase  I  trial  and  600
participants  in  the  phase  II  trial,  with  743  participants  receiving  at  least  one  dose  of  investigational  product.  Results  from  the  randomized,  double-blind,
placebo-controlled  phase  I/II  clinical  trial  on  safety,  tolerability  and  immunogenicity  of  CoronaVac  were  published  in  the  Lancet  Infectious  Diseases  on
November 17, 2020. The phase I trial was conducted in a dose-escalating manner, in which participants were randomly separated 1:1 into two vaccination
schedule cohorts, the days 0 and 14 cohort and days 0 to 28 cohort, and then randomly assigned to blocks within each cohort of low-dose CoronaVac (3 μg) or
high-dose CoronaVac (6 μg). Within each block, participants were randomly assigned 2:1 to either two doses of CoronaVac or placebo. In the phase II trial, at
screening, participants were randomly separated 1:1 into the same two vaccination schedule cohorts and then randomly assigned 2:2:1 to receive two doses of
either low-dose CoronaVac, high-dose CoronaVac, or placebo. The study found that two doses of CoronaVac at different concentrations and using different
dosing schedules were well tolerated and moderately immunogenic in healthy adults aged 18 to59 years. We started our first phase III trial on CoronaVac on
July 21, 2020 in Brazil, and then in Turkey, Indonesia and Chile. In compliance with the principles of Good Clinical Practice (GCP), the trials were conducted
with the vaccine candidate produced from the same lot and following the 0, 14 day schedule. There were a total of approximately 30,000 participants enrolled
in the trial across those four countries. In Brazil, a phase III efficacy study conducted on healthcare worker only, who directly contact COVID-19 patients,
shows an efficacy rate of 100.00% in preventing hospitalized, severe and fatal cases, 83.70% in preventing cases requiring medical treatment, and 50.65%
overall  efficacy  rate.  In  Turkey,  another  trial  on  over  10,000  volunteers  mainly  among  general  population  shows  100.0%  efficacy  rate  against  hospitalized
cases  and  an  overall  83.5%  efficacy  rate.  We  began  rolling  submission  to  NMPA  since  September  2020  and  NMPA  carried  out  rolling  reviews  when  the
submission was made. We were granted a conditional marketing authorization (CMA) by NMPA for CoronaVac in individuals aged 18 and above on February
5,  2021.  As  of  March  31,  2021,  CoronaVac  has  been  granted  either  emergency  approval  or  conditional  marketing  authorization  by  over  30  countries  or
regions.

Our pipeline consists of vaccine candidates in the clinical and pre-clinical development phases in China, as follows:

•

Sabin  Inactivated  Polio  vaccine  (“sIPV”).  Poliomyelitis  (polio)  is  a  highly  infectious  viral  disease,  which  mainly  affects  young  children.  The  virus  is
transmitted by person-to-person spread mainly through the fecal-oral route or, less frequently, by a common vehicle (e.g., contaminated water or food) and
multiplies in the intestine, from where it can invade the nervous system and can cause paralysis. One in 200 infections leads to irreversible paralysis (usually
in the legs). Among those paralyzed, 5-10% die when their breathing muscles become immobilized. In developing countries around the globe including China,
oral polio vaccine (“OPV”), is widely utilized to eradicate polio. Although OPV is considered safe and effective, in rare instances, the live attenuated vaccine
virus in OPV can cause paralysis, resulting in cases of vaccine-associated paralytic polio or circulating vaccine-derived poliovirus. Therefore, to eliminate the
risk of such cases, OPV will be phased out from routine immunization programs around the world. According to the Polio Eradication & Endgame Strategic
Plan 2013-2018 by WHO, governments should complete inactivated polio vaccine (“IPV”) introduction and OPV withdrawal by 2016, and include IPV and
OPV  in  routine  immunization  by  2018.  OPV  will  be  phased  out  from  routine  immunization  programs  around  the  world  by  2020.  sIPV  is  safer  to
manufacturers and potentially more affordable as compared to the currently available Salk IPV. The global demand for IPV is increasing as the Global Polio
Eradication Initiative has called for IPV to be introduced globally. On April 3, 2014, we entered into a non-exclusive license agreement with The Institute for
Translational Vaccinology (“INTRAVACC”) a governmental institute working under the Dutch Ministry of Public Health, Welfare and Sports, to develop and
commercialize sIPV for distribution in China and other countries. In collaboration with INTRAVACC, we completed the pre-clinical study and submitted the
application for clinical trials to NMPA in October 2014. In November 2015, we obtained a clinical trial license. Phase I/II clinical trials were completed in
April 2017, followed by the commencement of a phase III trial, which was completed in 2018. In January 2019, the NDA was submitted to the NMPA. In
March 2019, given the high demand for effective polio vaccines, the application was granted fast track review. Currently, the application is under review while
planning on consistency study on three consecutive lots, which has started in 2020. We expect the product license to be granted in the middle of 2021. An
application of pre-qualification assessment by WHO was filed by us in January 2020 and site-inspection by WHO was conducted in February 2021. We expect
a decision of such assessment in 2021.

Research and Development

We have established a leadership position in the research and development of vaccines in China. Since our inception, we have successfully developed and marketed
Healive, Bilive, Anflu, Panflu, Panflu.1, mumps vaccine, Inlive, varicella vaccine, QIV and PPV. Please see “— Our Products.” We believe our R&D capabilities
provide  us  with  a  key  competitive  advantage.  We  intend  to  focus  our  research  and  development  efforts  on  developing  vaccines  for  infectious  diseases  with
significant unmet medical needs, as well as the vaccine products with extensive market demand in China and other countries. COVID-19 is spreading globally, and
the whole world is facing an unprecedented public health crisis. We commenced the development of the COVID-19 vaccine at the end of January 2020. Our R&D
team  have  completed  comprehensive  preclinical  studies  and  clinical  trials  in  partnership  with  leading  academic  research  institutes  in  China  and  overseas.  Our
COVID-19 vaccine has been granted a conditional market authorization by NMPA on February 5, 2021.

In 2008, we restructured our R&D team in Beijing to better utilize our scientific and personnel resources. In 2009, we built an R&D center of approximately 13,300
square feet in the campus of our Beijing headquarters to meet our R&D demand. In 2011, we built a lab of 6,778 square feet, which is focused on maintaining
quality control of our pipeline products. In 2021, we plan to conduct pipeline product development in our new site in Daxing District of Beijing, where we produce
CoronaVac.

In order to achieve our R&D goal, part of our R&D strategy is to focus on in-house development and to establish collaborations with domestic and international
partners on technology and key material licensing, including but not limit to strains and cell lines. We have entered into

36

 
collaborations with a group of leading universities, colleges and research institutes that have strong vaccine research capabilities and proven track records in China.
In most cases, we will own the commercial rights to the products that result from our existing R&D strategic collaborations.

The investment in R&D is one of our strategies, which, we believe, will ensure our future growth. Our research and development expenses were $48.8 million,
$24.3 million and $21.9 million in 2020, 2019 and 2018, respectively. We have obtained financial support from the PRC government to conduct preclinical and
clinical research of vaccines for government-sponsored programs.

Sales and Marketing

Our  sales  strategy  is  to  increase  our  market  share  and  enhance  our  competitive  advantage  in  the  private  vaccine  sales  market  in  China  while  building  on  this
strength to push government to expand market size in the government-paid market. We also intend to establish our presence, increase our sales to international
markets and enhance awareness of our products outside China.

In 2018, our sales model was totally transformed to a collaborative model between our sales team and third-party marketing agents. We have formed a marketing
management team, strengthened the compliance management to third-party marketing agents, and expanded market coverage, improved market competition, and
improved the quality of customer services through professional and academic promotion activities. As of December 31, 2020, our internal sales and marketing team
covered 2,171 district CDC customers in 31 provinces in China, representing an increase of 8.7% as of the end of year 2019. Our sales team is mainly responsible
for the maintenance of customer relationship at or above the provincial level, bidding access at the provincial level, the development of the public market, as well
as  product  after-sales  services  and  the  support  and  management  of  third-party  marketing  agents.  We  cooperate  with  48  third-party  marketing  agents,  engaging
approximately 1,000 marketing and promotional staff. The team of the third-party market agents carries out business with district CDC customers with our support
in all aspects. In addition, we have taken the lead in placing commercial insurance compensation mechanism for abnormal response to vaccination nationwide in
the  private  vaccine  market  to  provide  more  professional  services  for  CDC  customers  and  consumers.  We  believe  these  efforts  contributed  to  our  reputation  for
quality and brand awareness in the Chinese vaccine market.

In  2020,  2019  and  2018,  our  sales  in  China  contributed  71.6%,  92.3%  and  93.7%,  respectively,  of  our  total  sales.  As  of  December  31,  2020,  we  had  already
exported  our  vaccine  products  to  28  countries.  Our  products  are  being  registered  in  30  countries.  In  order  to  speed  up  the  business  globalization,  as  well  as
strengthening our reputation for quality, we obtained WHO prequalification in December 2017 for hepatitis A vaccine, Healive. As of the date of this annual report,
CoronaVac is being used under emergency use approval in Indonesia, Brazil, Turkey and Chile and we are also actively seeking regulatory approval of CoronaVac
in  other  countries  and  regions  around  the  world  in  an  effort  to  maximize  global  accessibility  and  affordability  of  the  COVID-19  vaccine.  We  will  continue  to
explore the globalization of our product portfolio and develop products targeting potential international markets where we believe we can be successful.

Seasonality

Our business is highly seasonal. For example, the influenza season generally runs from November through March of the next year, and the largest percentage of
influenza vaccinations is administered between September and November of each year. As a result, we expect to realize most of our annual revenues from Anflu
during  this  period.  We  expect  this  seasonality  in  our  business  to  contribute  to  significant  quarterly  fluctuations  in  our  operating  results.  In  the  first  quarter,  our
strong  winter-season  sales  are  usually  offset  by  the  slow-down  of  business  during  the  Chinese  New  Year  holiday  season  that  effectively  lasts  more  than  half  a
month. During this holiday season, many businesses in China, including CDCs and most departments in hospitals, are either closed or substantially reduce the level
of their activities. Please see “Item 3. Key Information — D. Risk Factors — Risks Related to Our Company — Our business is highly seasonal. This seasonality
will contribute to our operating results fluctuating considerably throughout the year.”

Suppliers

We  obtain  the  raw  materials  from  local  and  overseas  suppliers.  We  generally  maintain  at  least  two  suppliers  for  each  key  raw  material,  with  the  exception  of
hepatitis B antigens we use for Bilive production. We source hepatitis B antigens entirely from Beijing Tiantan. Please see “Item 3. Key Information — D. Risk
Factors  —  Risks  Related  to  Our  Company  —  If  any  of  our  third-party  suppliers  or  manufacturers  cannot  adequately  meet  our  needs,  our  business  could  be
harmed.” Raw materials generally are in good supply and the prices we pay for them have remained stable. We target to maintain our gross margin in the event of
rising raw materials costs by improving our production processes and technical methods.

Manufacturing, Safety and Quality Assurance

We have four manufacturing bases located in the Haidian, Changping and Daxing districts of Beijing and Dalian of Liaoning province.

We  have  three  upstream  production  facilities  in  Haidian  District,  Beijing  for  commercialized  products.  Our  Healive  and  Bilive  share  the  same  production  line,
which  has  an  aggregate  annual  capacity  of  10  million  doses.  Our  Anflu  production  line  has  an  annual  capacity  of  15  million  doses,  which  can  also  be  used  to
produce 20 million doses of Panflu or Panflu.1 annually. Our PPV has an annual capacity of 5 million doses.

We  received  GMP  certificates  for  our  Healive,  Bilive  and  Anflu  production  facilities  initially  in  March  2002,  June  2005  and  October  2005,  respectively,  and
renewed their GMP certificates for another five years in 2018. The upstream production plants for our hepatitis vaccines and

37

 
 
 
flu vaccines in Haidian District passed the new GMP certification and obtained the new GMP certificate on April 17, 2013, which was renewed on April 13, 2018
for five years. Our hepatitis A vaccine production lines in both Shangdi site and Changping site passed GMP inspection by WHO for prequalification purpose in
December 2017. Our upstream production line for PPV, with an annual production capacity of 5.0 million doses, was built in Shangdi site in 2014, which passed
the  GMP  inspection  in  2020..  As  described  above,  a  representative  of  Sinobioway  Medicine  and  dozens  of  unidentified  individuals  forcibly  entered  Sinovac
Beijing’s  corporate  offices  and  cut  power  to  our  Shangdi  site.  Due  to  the  actions  of  the  representative  of  Sinobioway  Medicine,  Sinovac  Beijing  was  forced  to
destroy  the  affected  products  of  hepatitis  A  vaccine  and  influenza  vaccine  and  temporarily  suspended  production  at  the  impacted  facility  in  order  to  maintain
product  safety.  Since  the  influenza  vaccine  is  a  seasonal  product,  there  was  no  supply  of  Anflu  for  the  flu  season  of  2018-2019.  However,  production  of  the
hepatitis  A  vaccine  resumed  in  fourth  quarter  of  2018  and  production  of  the  influenza  vaccine  resumed  in  March  2019.  Our  PPV  production  line  passed  the
inspection by NMPA in June 2020 and production license was granted on December 2, 2020.

Our  production  site  in  Changping  District,  Beijing  consists  of  a  new  filling  and  packaging  line  that  complies  with  the  new  PRC  GMP  standards,  the  EV71
production facilities and a warehouse. The EV71 vaccine production line has a designed annual capacity of 20 million doses and was granted the GMP certificate in
January 2016 for five years. Our upstream production facilities of sIPV were built in Changping in 2017 with an expected annual production capacity of 20 million
doses.

We have built a new production site for CoronaVac in Daxing District, Beijing, in compliance with the new PRC GMP standards, and our CoronaVac production
lines have an estimated annual capacity of 2 billion doses.

Our production site in Sinovac Dalian focuses on the research, development, manufacturing and commercialization of live-attenuated vaccines, such as varicella,
mumps and combination vaccines containing measles, mumps, rubella, and/or varicella. Sinovac Dalian received its GMP certificate from NMPA for its mumps
vaccine  in  September  2012  and  launched  mumps  vaccine,  its  first  commercial  product,  in  late  2012.  The  renewed  GMP  certificate  issued  by  Food  and  Drug
Administration of Liaoning Province was obtained on February 13, 2018, which will remain valid until February 12, 2023. Our varicella vaccine production line
was inspected by NMPA and a production license was granted in December 2019.

Each  of  our  subsidiaries  has  its  own  quality  assurance  department.  The  quality  assurance  department  of  each  subsidiary  plays  a  role  to  supervise  the  R&D,
manufacturing,  procurement,  quality  control,  sales  and  marketing,  logistics  and  plant  construction  of  each  subsidiary  under  the  guidance  of  the  applicable
regulations and guidelines. Regular training or seminars are organized among quality assurance departments of subsidiaries to share and exchange knowledge and
experiences.

We  have  built  a  pharmacovigilance  system,  which  includes  organization  structure,  documentation,  working  procedures  and  SOPs.  The  organization  structure
indicates staff organization and their relevant duties and responsibilities. According to the requirements of the regulatory authorities, we regularly report the severe
Adverse  Event  Following  Immunization  (“AEFI”)  in  time  .  We  summarize  and  analyze  safety  information  coming  from  post-marketing  surveillance,  phase  IV
clinical  trials,  safety  studies  and  literatures,  and  to  submit  the  Periodic  Safety  Update  Reports  to  the  regulatory  authorities  regularly.  Meanwhile,  we  are  also
required to assist the regulatory authorities to investigate on the AEFIs and provide related information as required.

With  respect  to  compliance  with  environmental  laws,  we  have  also  obtained  the  approval  of  the  environmental  impact  assessment  report  from  the  Beijing
Municipal  Environment  Protection  Bureau  for  the  construction  plan  of  our  facilities  in  Changping  District,  Beijing  in  2011.  We  produce  Bilive  vaccine  at  our
production facility for hepatitis A vaccine and produce Panflu and Panflu.1 vaccines at our production facility for seasonal flu or Anflu vaccine. According to the
PRC Environmental Impact Assessment Law, after the approval of previous environmental impact assessment reports, if there is any material change in the nature,
scale, location, production technology used and measures adopted to prevent damages to ecology, new environmental impact assessment reports need to be filed for
approval.  We  have  canceled  the  construction  plan  for  our  influenza  vaccine  production  facility  in  Changping.  A  new  environmental  impact  assessment  report
regarding  the  change  was  submitted  to  the  relevant  environment  protection  authorities  and  passed  the  government  inspection  in  2011.  We  also  added  a  sIPV
production facility to the Changping construction plan in 2016. The relevant environmental impact assessment report was submitted to the relevant government
authorities and passed the government evaluation. The approval on such report was already obtained. The construction of sIPV has been completed, and we have
completed the clinical trial. In addition, we have also obtained approval for the environmental impact assessment report for PPV production facility at our Shangdi
site in 2014. In 2020, we obtained the approval for the environmental impact assessment report for the CoronaVac production facility.

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Collaborations

In September 2015, Sinovac Dalian entered into a technology transfer and supply agreement with GlaxoSmithKline Biologicals SA (“GSK”), to use GSK’s measles
seeds  to  develop  combination  vaccines  containing  measles  for  the  China  market.  Under  this  agreement,  GSK  agreed  to  transfer  its  measles  seeds,  and  provide
reasonable assistance and relevant technical materials to Sinovac Dalian for developing and producing combination vaccines containing measles. We did not make
any payment for purchasing measles seeds to GSK during the year ended December 31, 2020, 2019 and 2018.

On  April  3,  2014,  we  entered  into  a  non-exclusive  license  agreement  with  INTRAVACC,  a  governmental  institute  working  under  the  Dutch  Ministry  of  Public
Health, Welfare and Sports, to develop and commercialize sIPV for distribution in China and other countries. We expect to develop and commercialize the vaccine
in China first, as well as seeking regulatory approval in other countries at the later stage. The agreement has a term of 50 years. Please see “— Our Products.”

We agreed to pay INTRAVACC a license fee of up to $2,406 million (€1.5 million) net of PRC withholding tax, including an entrance fee and milestone payments
upon achievement of specific milestones. We also agreed to pay royalty payments in a single digit percentage of net sales generated worldwide from the product or
products developed under the license agreement. We recorded a payment of $35,000 (€30,000) and $0.6 million (€0.5 million) for the year ended December 31,
2020 and 2018, as research and development expense. There was no expense incurred or paid to INTRAVACC for the year ended December 31, 2019.

We licensed from MedImmune, LLC (“MedImmune”) certain rights to use patented reverse genetics technology pertaining to a virus strain used for the production
of Panflu (H5N1). We have agreed to pay an upfront license fee and to pay milestone payments of up to an aggregate of $9.9 million upon the achievement of
certain amount of cumulative net sales of licensed products in China (including Hong Kong and Macau), as well as royalty payments in single digits of net sales of
the licensed products in China (including Hong Kong and Macau). On August 15, 2012, we entered into amendments with MedImmune in respect of four of our
patent license agreements with MedImmune to, among other things, extended the effectiveness term of each agreement to reflect revised termination dates between
December 2015 and May 2021. We accrued a royalty payment of $9,000 in 2018, which was paid in 2019. We did not accrue any royalty payment in 2020 and
2019.

In  March  2009,  we  entered  into  a  technology  transfer  agreement  (with  an  amendment  agreement  entered  into  on  December  14,  2011)  with  Tianjin  CanSino
Biotechnology Inc. (“Tianjin Cansino”). According to the agreement, Tianjin Cansino will transfer the technology related to pneumococcal vaccine to us and jointly
develop the technology with us. The collaboration term under the technology transfer agreement is from March 12, 2009 to eight years after the first sale of the
vaccine developed under the technology transfer agreement in the Chinese market.

Under the terms of the technology transfer agreement, we will make milestone payments of up to $3 million and royalty payments ranging from 6% to 10% of net
sales in China. Both parties will work together to develop international markets for the products. On November 17, 2009 and December 14, 2011, two amendment
agreements were signed for the payment of $0.3 million for the transfer of an additional six serotypes and related technology. As of December 31, 2020, we made
total milestone payments of $1.2 million ($1 million under the agreement dated as of March 12, 2009 and $0.2 million under the amendment agreement dated as of
December 14, 2011). The remaining milestone payments will be paid when we achieve each specific milestone, which includes obtaining clinical trials approval,
completing clinical trials and achievement of desired results, and achievement of commercial sales.

In  January  2015,  we  entered  into  the  third  amendment  to  the  technology  transfer  agreement  dated  March  12,  2009,  as  amended  on  November  17,  2009  and
December  24,  2011,  respectively.  By  entering  into  this  third  amendment,  the  technology  transfer  agreement  was  amended  to  be  a  licensing  agreement.  The
remaining  milestone  and  royalty  payments  under  the  technology  transfer  agreement  have  been  reduced.  Both  we  and  Tianjin  Cansino  are  free  to  develop
pneumococcal vaccines or to collaborate with other companies for the same purpose. We did not make any payment in this regard for the years ended December 31,
2020, 2019 and 2018.

In August 2009, we entered into a patent license agreement with the National Institutes of Health (“NIH”), an agency of the United States Public Health Services
within the Department of Health and Human Services. NIH has granted us a non-exclusive license to import and use certain Rotavirus Strains and Monoclonal
Antibodies (“Biological Materials”)  to  develop  an  oral  rotavirus  vaccine  and  produce  the  vaccine  in  commercial  sales  and  launch  into  market.  NIH  has  also
granted us the right to use certain documentation associated with the Biological Materials for this research and development project. The term of the license under
the patent license agreement is from August 18, 2009 to the later of (a) the expiration of all royalty obligations under the licensed rights where such rights exist and
(b) eight years after the first commercial sale by us, unless the agreement is terminated earlier per the provisions included therein.

39

 
 
 
 
We  agreed  to  pay  NIH  a  license  royalty  of  $80,000  upon  execution  of  the  agreement  and  a  non-refundable  minimum  annual  royalty  of  $8,000,  and  royalty
payments on net sales ranging from 1.5% to 4% depending on the sales territory and the customers. We also agreed to pay NIH benchmark royalties of $0.3 million
upon achieving each benchmark as specified in the patent license agreement, including completion of clinical trials, obtaining regulatory approval for marketing,
and  achievement  of  commercial  sales.  We  recorded  a  license  royalty  of  $1,000,  $1,000  and  $16,000  for  the  year  ended  December  31,  2020,  2019  and  2018,
respectively, as research and development expenses.

In June 2020, we entered into a clinical development collaboration agreement with Instituto Butantan, a leading Brazilian producer of immunobiologic products, to
advance the clinical trials of CoronaVac to phase III. Through the collaboration, Instituto Butantan sponsored the phase III clinical trials in Brazil. These series of
agreements completed or to be completed between the parties help establish extensive collaboration that includes technology licensing, market authorization and
commercialization of CoronaVac. In this way, Instituto Butantan can ensure that the Brazilian population has access to this vaccine.

In August 2020, we signed two agreements with PT Bio Farma, a leading biopharmaceutical company in Indonesia, for the supply, local production and technology
licensing in respect of CoronaVac. Under these agreements, we are committed to supply Bio Farma bulk vaccine to enable the latter to produce at least 140 million
doses of CoronaVac in Indonesia.

In November 2020, we signed two agreements with KEYMEN Ilac Sanayi. Ve Tic. A.S. (“KEYMEN”), an active in supplier of pharmaceutical products in Turkey,
for  the  supply,  local  production  and  technology  and  know-how  licensing  of  CoronaVac.  Under  the  agreements,  our  company  and  KEYMEN  will  cooperate  to
enable local filling and packaging from the bulk vaccine supplied by us in designated facilities in Turkey.

Competition

The pharmaceutical, biopharmaceutical and biotechnology industries both within China and globally are intensely competitive and are characterized by rapid and
significant  technological  progress,  and  our  operating  environment  is  increasingly  competitive.  In  2010,  NMPA  increased  the  quality  standard  of  some  vaccine
products by issuing a new version of Pharmacopeia. As a result, some vaccine products manufactured by multinational companies could no longer be sold in China.
According to NMPA, there are approximately 40 vaccine companies in China, of which we believe approximately 10 are our direct competitors.

Even with the advent of private medical and healthcare insurance programs in China and the government vaccine purchase program’s expanded vaccine list, most
Chinese  citizens  must  pay  for  vaccines  by  their  own  because  these  insurance  programs  do  not  typically  cover  vaccines  and  the  government  vaccine  purchase
program covers only infants and young children. We believe the consumer market for conventional products is health conscious yet price sensitive and accordingly
would favor our products over both the cheaper vaccines with lower quality provided by local manufacturers and the more expensive vaccines with comparable
quality  manufactured  by  international  competitors.  Our  competitors,  both  domestic  and  international,  include  large  integrated  multinational  pharmaceutical,
domestic  state-owned  entities  and  domestic  private  companies  that  currently  engage  in,  have  engaged  in  or  may  engage  in,  efforts  related  to  the  discovery  and
development  of  new  biopharmaceuticals  and  vaccines.  Many  of  these  entities  have  substantially  greater  research  and  development  capabilities  and  financial,
scientific,  manufacturing,  marketing  and  sales  resources  than  we  do.  They  are  also  more  experienced  in  research  and  development,  clinical  trials,  regulatory
matters, manufacturing, marketing and sales.

Multiple  vaccine  products  have  been  approved  for  sales  worldwide.  Many  of  these  vaccine  products  are  marketed  by  our  major  competitors  in  particular  for
hepatitis A, hepatitis B, influenza and EV71 vaccine. Specifically, with respect to the inactivated hepatitis A vaccine, we consider Merck Sharp & Dohme Corp. as
key  competitors  in  China,  and  GlaxoSmithKline  Biologicals  and  Merck  Sharp  &  Dohme  Corp.  for  the  markets  outside  China.   The  live  attenuated  hepatitis  A
vaccine  manufacturers  include  Institute  of  Medical  Biology,  Chinese  Academy  of  Medical  Sciences  Pukang  Biological  Co.,  Ltd.,  and  Changchun  Institute  of
Biological Products. With respect to the hepatitis A and B vaccines, we are the only company with this product in China. With respect to the influenza vaccines, we
consider Hualan Biological Engineering Inc. and Changchun Institute of Biological Products as key competitors in China, and Sanofi Pasteur S.A. as our major
competitor for the markets outside China. With respect to the EV71 vaccines, we considered Institute of Medical Biology, Chinese Academy of Medical Sciences
and China National Biotec Group Co., Ltd. as our key competitors in China as well as outside China. With respect to the COVID-19 vaccine, we consider China
National Biotec Group, Pfizer and AstraZeneca as our key competitors. With respect to the varicella vaccine, we consider Changchun BCHT Biotechnology Co.,
Ltd. and Changchun Keygen Biological Products Co., Ltd. as key competitors in China. With respect to the 23-valent pneumococcal polysaccharide vaccine, we
consider Chengdu Institute of Biological Products and Walvax Biotechnology Co., Ltd. as the key competitors in China.

We believe we enjoy a number of advantages over the PRC domestic competitors and multinational competitors in China. Generally, we believe that the principal
competitive advantage in the markets for our products and product candidates include:

•

•

safety and efficacy profile;

brand reputation;

40

 
 
 
•

•

product supply; and

after-sales services.

Intellectual Property and Proprietary Technology

Protection of our intellectual property and proprietary technology is important to our business. We rely primarily on a combination of trademark, patent and trade
secret protection laws in China and other jurisdictions, as well as employee and third-party confidentiality agreements to safeguard our intellectual property, know-
how and brand. Our ability to protect and use our intellectual property rights in the development and commercialization of our technologies and products, operate
without infringing the proprietary rights of others and prevent others from infringing our proprietary rights is crucial to our long term success. We will be able to
protect our products and technologies from unauthorized use by third parties only to the extent that they are covered by valid and enforceable patents, trademarks or
copyrights, or are effectively maintained as trade secrets, know-how or other proprietary information.

We have a total of 68 issued patents and a number of pending patent applications relating to our vaccines in China.

With respect to, among other things, proprietary know-how that is not patentable and processes for which patents are difficult to enforce, we rely on trade secret
protection and confidentiality agreements to safeguard our interests. We believe that many elements of our vaccine products, clinical trial data and manufacturing
processes involve proprietary know-how, technology or data that are not covered by patents or patent applications. We have taken appropriate security measures to
protect such assets. We have entered into confidentiality agreements (which include, in the case of employees, non-competition provisions) with all our employees
and many of our consultants, outside scientific collaborators, sponsored researchers and other advisors. These agreements provide that all confidential information
developed or made known to the individual or an organization or company during the course of its relationship with us is to be kept confidential and not disclosed
to  third  parties  except  in  specific  circumstances  permitted  by  such  agreements.  In  the  case  of  our  employees,  the  agreements  provide  that  all  of  the  technology
conceived by the individual during the course of employment is our exclusive property and require our employees to assign to us all of their inventions, designs and
technologies  they  develop  once  the  technology  is  conceived  and  cooperate  with  us  to  secure  patent  protection  for  these  inventions  if  we  wish  to  pursue  such
protection.

In the past, we have relied on the administrative protection afforded to new drugs through the monitoring period provided by NMPA. During the monitoring period,
third party applications for manufacturing or importing the same drugs are not accepted by NMPA. The administrative protection for Healive expired in December
2007 and Bilive expired in January 2008. Currently, the administrative protection was no longer implemented in China. Instead, NMPA implements a new drug
monitoring  period  starting  from  the  issuance  of  production  license.  Our  EV71  vaccine  was  granted  a  five-year  new  drug  monitoring  period  and  during  the
monitoring  period,  no  other  company  will  be  approved  to  enter  into  a  human  clinical  study  of  the  same  kind  of  vaccine.  Therefore,  only  three  products  from
Kunming, CNBG and Sinovac have been approved in China. The monitoring period of our EV71 vaccine has expired in December 2020.

We maintain 22 registered trademarks in China, including (i) “Sinovac”, (ii) Sinovac’s Chinese name and its logo, (iii) “Healive”, its Chinese name and its logo,
(iv) “Bilive” and its Chinese name, (v) “Anflu” and its Chinese name, (vi) “Panflu”, its Chinese name and its logo, (vii) “PANFLU.1” and its Chinese name, (viii)
“Inlive” and its Chinese name, (ix) “EV71Vac” , (x) “EntV71” and its Chinese name,  and (xi) “CoronaVac” and its Chinese name.

We have registered and maintain “Sinovac” trademark in Canada, Malaysia, the Philippines, South Korea and Egypt. In the Philippines, we have registered and
maintain “Anflu”.

As our brand names “Sinovac” and “科兴” are becoming more recognized in the vaccine market, we are working to maintain, increase and enforce our rights in the
trademark portfolio. Since 2001, Sinovac Beijing has been using “科兴” (Kexing) as part of its Chinese trade name. Sinovac Dalian began to use “科兴” (Kexing)
as  part  of  its  Chinese  trade  name  in  2010.  Shenzhen  Kexing  successfully  registered  “ 科 兴 ”  trademark  in  China  for  Class  5  (Pharmaceuticals)  under  the
International Classification of Goods and Services in 2001. To protect our interest in using “科兴” in our trade names, we applied to register “科兴” in China for
Class  42  (Scientific  &  Technological  Services  &  Research)  in  2006  and  the  PRC  Trademark  Office  of  the  State  Administration  for  Industry  and  Commerce
approved our application in 2010. As of the date of this annual report, the “科兴” trademark registered and owned by Shenzhen Kexing has not been identified as
“Well-known  Trademark”  by  the  relevant  PRC  authorities.  If  the  “ 科 兴 ”  trademark  owned  by  Shenzhen  Kexing  is  ever  officially  identified  as  a  “Well-Known
Trademark” in the future, however, we may be subject to trademark infringement claim for the use of “科兴” in our trade names.

We have registered our own domain names, including www.sinovac.com.cn and www.sinovac.com, with the China Internet Network Information Center.

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Insurance

We  maintain  property  insurance  coverage  with  an  annual  aggregate  insured  amount  of  approximately  RMB1,062  million  ($162.8  million)  in  2020  to  cover  our
property  and  facilities  from  claims  arising  from  fire,  earthquake,  flood  and  a  wide  range  of  other  natural  disasters.  We  are  carrying  worldwide  product  liability
insurance for Healive, Bilive, Anflu, Panflu and Inlive (excluding the United States and Europe) from April 2020 to April 2021. We do not carry liability insurance
to cover liability claims that may arise from the incidents relating to the clinical trials of our vaccine products. Our insurance coverage may not be sufficient to
cover any claim for product liability or damage to our fixed assets. We do not maintain any business interruption insurance. We are negotiating with the insurance
providers for a renewal of our product liabilities insurance policies. See “Item 3. Key Information — D. Risk Factors — Risks Related to Our Company — We
could be subject to costly and time-consuming product liability actions and, because our insurance coverage is limited, our exposure to such claims could cause
significant financial burden.”

Regulatory Framework of the Pharmaceutical Industry in the PRC

The testing, approval, manufacturing, labeling, advertising and marketing, delivery, post-approval safety reporting, and export of our vaccine products or product
candidates are extensively regulated by governmental authorities in the PRC and other countries.

In the PRC, the NMPA regulates and supervises vaccine products under the Pharmaceutical Administration Law, the Implementing Regulations on Pharmaceutical
Administration Law, the Vaccine Administration Law, the Administration of Registration of Pharmaceuticals Procedures, and other relevant rules and regulations
which are applicable to manufacturers in general. Every step of our vaccine production is subject to the requirements on the manufacture and sale of pharmaceutical
products as provided by these laws and regulations, including but not limited to, the standards of clinical trial, approval and transfer of new medicine registrations,
applicable industry standards of manufacturing, distribution, packaging, advertising and pricing.

Pre-clinical Studies. Pre-clinical studies include in-vitro laboratory evaluation of the product candidate, as well as in-vivo animal studies to assess the potential
safety  and  efficacy  of  the  product  candidate.  Non-clinical  studies  must  be  conducted  in  compliance  with  Good  Laboratory  Practice  for  Non-clinical  Studies  of
Pharmaceuticals. With respect to vaccines, the pre-clinical studies should also comply with Technical Guidance for Pre-clinical Studies on Preventive Vaccines. We
must submit a file package for investigational new drug application (“IND”) to the Centers for Drug Evaluation. The applicant shall be provided with a decision on
whether  a  consent  is  granted  to  conduct  clinical  study.  If  no  decision  is  provided  within  60  days,  it’s  regarded  as  permission  granted.  We  cannot  assure  that
submission of an IND will result in the Centers for Drug Evaluation allowing clinical trials to begin, after these trials commence, issues could arise that result in the
suspension or termination of such clinical trials.

Clinical trials. Clinical trials involve the administration of the product candidate to healthy volunteers or patients under the supervision of principal investigators,
who  are  generally  physicians  or  an  independent  third  party  not  employed  by  us  or  under  our  control.  Clinical  trials  typically  are  conducted  in  three  sequential
phases, but the phases may overlap or be combined. In phase I, the initial introduction of the drug into human subjects, the drug is usually tested for safety (adverse
effects), dosage tolerance, and pharmacologic action. phase II usually involves studies in a limited patient population to evaluate preliminarily the efficacy of the
drug for specific, targeted conditions and to determine dosage tolerance and appropriate dosage and to identify possible adverse effects and safety risks. Phase III
trials generally further evaluate clinical efficacy and test further for safety within an expanded patient population. Clinical trials have to be conducted in compliance
with the Good Clinical Trial Practice of Pharmaceuticals.

With respect to vaccines, we also have to comply with the NMPA’s Requirements on Application for Clinical Trial of New Preventive Biological Products. The
sample vaccine products must be tested by the NIFDC before they may be used in the clinical trials. We or the NMPA may suspend clinical trials at any time on
various grounds, including a finding that subjects are being exposed to an unacceptable health risk.

After three phases of clinical trials, we apply for New Drug Application (“NDA”). We submit to the Centers for Drug Evaluation the NDA file package, which
includes  a  clinical  trial  research  report,  pharmaceutical  research  data,  and  records  of  manufacturing  and  testing  of  three  batches  of  products,  to  apply  for  the
marketing authorization. For vaccines, we have to comply with the NMPA’s Guidelines for Clinical Trial Report on Vaccines.

Communication Meeting.  In  order  to  improve  review  process  of  regulatory  approval,  NMPA  has  set  up  a  communication  channel  between  the  applicant  and
reviewing  agencies.  Applicant  can  discuss  material  safety  issues  during  the  human  clinical  study  or  significant  technical  issues  arise  during  the  development
process  with  regulatory  agencies.  This  kind  of  meetings  can  also  be  held  at  critical  stages  in  the  entire  process  of  drug  development,  including  before  IND
application, before phase III human clinical studies, or before NDA.

Marketing Authorization. The applicant can submit an application for a marketing authorization with submission of relevant research materials after completing
the  research  on  pharmacology,  pharmacological  toxicology  and  clinical  trials  to  support  the  registration  of  drugs  on  the  market,  establishing  quality  standards,
completing the verification of commercial-scale production processes, and preparing to accept the verification and inspection of drug registration. If the application
dossiers  pass  the  formal  examination,  they  will  be  accepted.  The  Center  for  Drug  Evaluation  would  organize  pharmaceutical,  medical  and  other  technicians  to
evaluate  the  accepted  application  of  drug  marketing  authorization  according  to  the  requirements.  The  Center  for  Drug  Evaluation  would  then  initiate  the
verification  and  inspection  action  based  on  the  risks  identified  during  the  evaluation  and  the  relevant  technical  institutes  would  conduct  the  verification  and
inspection within the time limit. NMPA will verify the

42

 
authenticity of submitted document, reliability of submitted data and conduct site inspection on research lab and production site, as well as other inspections as
NMPA thinks necessary. For vaccine products, the on-site inspection on production site and the inspection of the quality management on the production of vaccine
products shall be conducted. Vaccine products shall be tested before marketing authorizations are issued. The testing includes confirmation on the quality stand and
sample testing. Subsequently the Center for Drug Evaluation shall conduct a comprehensive review of the safety, effectiveness and quality controllability of drugs
on the basis of the drug registration declaration information, verification results and inspection results, etc., and, if the conclusions of the comprehensive review are
adopted, the drug marketing authorization will be approved and a drug registration certificate will be sent.

The marketing authorization is valid for a term of five years and must be renewed before its expiration. During the renewal process, our production facilities will be
re-evaluated by the appropriate governmental authorities and must comply with effective standards and regulations.

During  or  after  a  public  health  emergency,  the  NMPA  may  decide,  in  accordance  with  the  law,  to  apply  special  approval  for  the  prevention  and  treatment  of
medicines  necessary  for  emergency  response  to  public  health  emergencies.  For  applications  for  the  registration  of  drugs  subject  to  special  approval,  the  NMPA
shall,  organize  and  carry  out  the  processing,  review,  verification  and  inspection  of  drug  registration  in  a  simultaneous  manner,  following  the  principles  of
centralized  coordination,  early  intervention,  and  rapid,  efficient  and  scientific  examination  and  approval.  The  circumstances,  procedures,  time  limits  and
requirements of special approval shall be implemented in accordance with the provisions of the special approval procedure for medicines.

We  may  also  be  required  to  conduct  clinical  trials  prior  to  commencing  the  manufacturing  of  pharmaceutical  products  for  which  there  are  published  state
pharmaceutical standards.

Batch Approval. Our vaccine products cannot be distributed in the market before receiving batch approval. After we obtain the production permit, we will start
commercial production, after which we need to apply for batch release approval by the NIFDC for the commercial lots. For each batch of products, we will provide
samples  taken  from  cold  rooms  by  inspectors,  together  with  manufacturing  records,  self-testing  records  and  other  quality  control  documents.  The  NIFDC  will
review  the  documents  and  test  the  samples  and  issue  a  batch  approval  within  approximately  two  months  if  our  manufacture  procedures  and  the  quality  of  our
products meet the NMPA standards. With the batch approval, we may distribute the approved batch of vaccines to the market.

Regulatory Framework of the Vaccine Administration in the PRC

On December 1, 2019, the PRC Vaccine Administration Law, China’s first legislation dedicated to vaccine management, became effective.

The  new  law  is  expected  to  enable  the  regulators  to  close  loopholes  and  rein  in  risks  in  vaccine  management.  In  addition,  the  strategic  position  of  the  vaccine
industry  to  the  whole  country  and  its  welfare  nature  concerning  the  general  public  have  been  clearly  recognized  in  the  new  law.  The  Chinese  government  will
support the fundamental scientific research and commercialization research of vaccine products to encourage the development of innovation technologies and new
vaccine products. The research and development, production and stockpiling of vaccine products preventing serious diseases will be part of the state strategy. The
new law also makes it very clear that the PRC government will encourage the further consolidation of the vaccine industry so that manufacturers with large scale
production capacities of more quality products, using more advanced technologies, could emerge. All of these new regulatory regimes to be established under the
new law may largely boost the confidence of the public in vaccine products manufactured in China.

The  new  PRC  Vaccine  Administration  Law  implements  more  stringent  supervision  of  the  entire  process  of  vaccine  development,  production,  delivery,  and
inoculation. The legislation mandates both government oversight and the duty of manufacturers to report compliance in all substantial aspects of the whole lifecycle
of vaccine products. The sanctions and penalties for the illegal activities have been significantly increased. For instance, the sanctions for production or selling of
fake or substandard vaccines extend to include confiscating of all illegal gains obtained from and the materials, equipment and other facilities and resources used
for production or selling of fake or substandard vaccines, suspension of business for corrections, revoking of drug registration certificate or production license. The
fines can be as high as 15 times to 50 times of the market value of the fake vaccines or 10 times to 30 times of the market value of the substandard vaccines. In the
case of serious circumstances, the legal representative, the person in charge or the key personnel who are directly responsible for production or selling of fake or
substandard  vaccines  and  the  other  persons  responsible  are  also  subject  to  sanctions  of  confiscating  their  income  during  the  production  period  of  the  fake  or
substandard vaccines, a fine of one time to ten times of the said income. Such persons will be permanently banned from engaging in drug production activities and
will be subject to 15 days of confinement in prison.

Classification of Vaccines

Vaccines refer to preventive biological products for human vaccination so as to prevent and control the occurrence and prevalence of diseases, including vaccines
under immunization programs (the “Vaccines Under Program”) and vaccines not covered by immunization programs (the “Vaccines Beyond Program”).

•

Vaccines Under Program refer to the vaccines that must be inoculated to residents in accordance with government provisions, including vaccines determined
in national immunization programs, vaccines added by provincial government in the implementation of national immunization programs, and vaccines used in
emergency vaccination or group preventive vaccination organized by governments at the

43

 
 
county  level  or  above  or  their  competent  health  departments,  which  is  similar  to  the  Vaccines  of  Class  1  under  the  previous  classification  under  the
Administrative Regulations on the Circulation of Vaccines and Vaccination of the PRC.

•

Vaccines Beyond Program refer to other vaccines voluntarily inoculated by residents, which is similar to Vaccines of Class 2 under the previous classification.

Mandated Manufacturing

Market  authorization  holder  of  vaccines  refers  to  the  enterprise  who  obtains  both  a  vaccine  registration  certificate  and  a  drug  manufacturing  license.  Market
authorization holders of vaccines must have adequate vaccines manufacturing capacity. Where the mandated manufacturing is necessary due to inadequate vaccines
manufacturing capacity, the market authorization holder of vaccines must obtain an approval of the medical products administration under the State Council for
such mandated manufacturing.

Keeping of Sales Records

Market authorization holders of vaccines must keep accurate and complete sales records and keep the same for reference for at least five years after the shelf life of
the relevant vaccines.

Electronic Traceability of Vaccines

The  PRC  government  will  set  up  national  vaccines  electronic  traceability  collaboration  platform  and  the  market  authorization  holders  of  vaccines  must  also
establish vaccines electronic traceability system to be linked with the national vaccines electronic traceability collaboration platform, for the purpose of integrating
the traceability information on the whole process of vaccine production, circulation and vaccination so as to realize the traceability of vaccines. In case of failure of
complying with such obligation, the market authorization holder of vaccines will be imposed a fine up to RMB2 million.

Compulsory Vaccines Liability Insurance

The  PRC  government  will  implement  the  rules  for  compulsory  vaccines  liability  insurance.  The  market  authorization  holders  of  vaccines  must  underwrite  the
compulsory vaccine liability insurance. Specific implementing measures for the compulsory vaccine liability insurance system will be formulated by the medical
products administration under the State Council in collaboration with the health administration and insurance regulatory authority under the State Council. In case
of failure of complying with such obligation, the market authorization holder of vaccines will be imposed a fine up to RMB2 million.

Post-Market Management of Vaccines

(a) Post-market investigation

The market authorization holders of vaccines must establish the whole-lifecycle quality management system of vaccines, and carry out post-market investigation to
further confirm the safety, efficacy and quality controllability of the vaccines put into the market. In case of failure of complying with such obligation, the market
authorization holder of vaccines will be imposed a fine up to RMB2 million.

(b) Quality retrospection analysis and risk reporting

The  market  authorization  holders  of  vaccines  must  set  up  a  vaccines  quality  retrospection  analysis  and  risk  reporting  system,  and  faithfully  report  relevant
information on vaccine manufacturing, distribution, post-market investigation and risk management to the medical products administration under the State Council
on a yearly basis. In case of failure of complying with such obligation, the market authorization holder of vaccines will be imposed a fine up to RMB2 million.

(c) Post-market evaluation

The medical products administration under the State Council has the right to request a market authorization holder of vaccines to conduct post-market evaluation or
directly organize post-market evaluation. The medical products administration under the State Council will cancel

the drug registration certificate for vaccines with serious adverse event to vaccination or endangering human health due to other causes.

Information Disclosure

The market authorization holders of vaccines must establish an information disclosure system and promptly disclose vaccine product information, package insert
and  labels,  situations  concerning  the  implementation  of  quality  control,  lot  release,  recall,  inspection  and  punishment  imposed  and  compulsory  vaccine  liability
insurance effected, etc. on its website as required. In case of failure of complying with such obligation the market authorization holder of vaccines will be imposed
a fine up to RMB2 million.

44

 
Following the promulgation of the PRC Vaccine Administration Law in June 2019, the Ministry of Industry and Information Technology of the People’s Republic
of  China  (“MIIT”)  announced  that  the  thresholds  to  entry  in  the  Chinese  vaccine  industry  will  be  raised  and  they  will  more  strictly  control  the  number  of  new
vaccine manufacturers to be established. MIIT will encourage the centralization and consolidation of the vaccine industry.

C.

Organizational Structure

The  following  diagram  illustrates  our  company’s  organizational  structure,  and  the  place  of  incorporation,  ownership  interest  and  affiliation  of  each  of  our
subsidiaries as of the date of this report.

As of December 31, 2020, we held 100% equity interest in Sinovac Biotech (Hong Kong) Limited, our subsidiary incorporated in Hong Kong, Sinovac Biotech
(Singapore) Pte. Ltd., our subsidiary established in the Singapore and Sinovac Biomed Co., Ltd., our subsidiary established in the PRC; and we held 73.09% of
equity interests in Sinovac Biotech Co., Ltd., our subsidiary established in the PRC, 59.24% of the equity interests in Sinovac Life Sciences Co., Ltd. (formerly
known  as  Sinovac  Research  &  Development  Co.,  Ltd.),  our  subsidiary  established  in  the  PRC  and  68%  of  the  equity  interests  in  Sinovac  (Dalian)  Vaccine
Technology Co., Ltd., our subsidiary established in the PRC.

*

Dalian Jin Gang Group Co., Ltd. owns the remaining 32% equity interest in Sinovac (Dalian) Vaccine Technology Co., Ltd.

** Sinobioway Bio-medicine Co., Ltd., formerly named Xiamen Bioway Group Co., Ltd, owns the remaining 26.91% equity interest in Sinovac Biotech Co., Ltd.

*** Affiliates  of  Sino  Biopharmaceutical  Limited,  Keding  Investment  (Hong  Kong)  Limited,  Vivo  Capital  Fund  IX  and  Prime  Success,  L.P.  owns  15.38%,
12.69%, 6.345% and 6.345%, respectively, of the remaining equity interest in Sinovac LS, former name of which was Sinovac Research & Development Co.,
Ltd. Keding Investment (Hong Kong) Limited is holding shares underlying awards granted to officers and employees of Sinovac LS pursuant to its employee
share ownership plan.

****The former name is Sinovac Zhong Yi Bio-pharmaceutical Co., Ltd.

D.

Property, Plants and Equipment

We  are  headquartered  in  the  Peking  University  Biological  Industry  Park  in  Haidian  District  in  Beijing  in  a  48,900-square-foot  facility,  of  which  approximately
16,700 square feet are used as office space and approximately 32,200 square feet are used for the production plant for Healive and Bilive. Sinovac Beijing owns the
above-described 48,900-square-foot facility in Peking University Biological Industry Park.

In  August  2004,  we  signed  two  20-year  leases  with  SinoBioway  Biotech  Group  Co.  Ltd.  (“SinoBioway”),  pursuant  to  which  we  leased  two  buildings  of
approximately 28,000 and 13,300 square feet, respectively, located at the Peking University Biological Park in Beijing. We house our Anflu manufacturing and
R&D center in these two buildings. One of the lease agreements was amended on August 12, 2010 to reflect an increase in the lease rental. In June 2007, we signed
another 20-year lease with SinoBioway, in order to expand Sinovac Beijing’s production facilities in our Shangdi site, pursuant to which we lease one building of
approximately 37,000 square feet, located at Peking University Biological Park. Part of our administrative offices and filling facilities are located in this building
until  2013.  The  filling  facilities  have  been  moved  to  Changping  site  since  2013,  and  the  original  filling  facilities  space  is  set  up  as  the  commercial  production
facility for our pneumococcal vaccines.

In September 2010, we entered into an agreement with SinoBioway, under which we lease a space of 6,778 square feet. The lease term is five years and we use it
for our research and development function. On April 8, 2013, we entered into three supplemental agreements with SinoBioway, under which the expiration date of
each of the four operating lease agreements was extended to April 7, 2033.

All these offices and production facilities in the Peking University Biological Industry Park are known as our Shangdi site. We have three production lines located
at the Shangdi site. The production line to manufacture hepatitis vaccines, Healive and Bilive, interchangeably has an aggregate combined production capacity of
approximately 10 million doses annually. The production line to manufacture flu vaccines, Anflu, Panflu and Panflu.1, interchangeably has an annual production
capacity of approximately 15 million doses of Anflu (northern hemisphere). We have built a PPV production line at the Shangdi site with designed annual capacity
of 5 million doses per year. As described above, a representative of Sinobioway Medicine and dozens of unidentified individuals forcibly entered Sinovac Beijing’s
corporate offices and cut power at the Shangdi site. Due to the actions of the representative of Sinobioway Medicine, Sinovac Beijing was forced to destroy the
affected products and temporarily

45

 
 
 
 
decided to stop the production at the impacted facility in order to maintain product safety. The production resumed at the Shangdi site in the second half of 2018.

In  February  2010,  we  acquired  a  right  to  use  approximately  312,400  square  feet  of  land  located  in  Changping  District,  Beijing  (“Changping  Site”)  with  five
buildings  with  a  total  built-out  area  of  32,322  square  meters  (approximately  347,900  square  feet)  for  a  total  consideration  of  approximately  RMB123.6  million
($17.8 million). We have made all required payments by December 31, 2012. We built a new filling and packaging line, EV71 production facilities and a warehouse
at the Changping site. In May 2013, the new filling and packaging line at the Changping site was granted the GMP certificate, following which, we moved all the
filling and packaging activities to the Changping site. The five-year GMP renewal at the Changping site for the filling and package line was successfully completed
on April 13, 2018. The new warehouse was put into operation in December 2010. The EV71 vaccine production line at the Changping site has a designed annual
capacity of 20 million doses and was granted the new GMP certificate in January 2016. In July 2016, we started to build our sIPV plant for bulk production at the
Changping site. The expected capacity is approximately 20 million doses.

In November 2009, we entered into an agreement with Dalian Jin Gang Group to establish Sinovac Dalian. In January 2010, we established Sinovac Dalian which
focuses on the research, development, manufacturing and commercialization of live-attenuated vaccines, such as varicella, mumps and rubella vaccines for human
use. Sinovac Dalian has seven existing buildings with a total built-out area of 20,000 square meters (approximately 215,280 square feet) on a parcel of land of
95,685  square  meters  (approximately  1,030,000  square  feet),  located  at  DD  Port,  Economic  and  Technical  Development  Zone,  Dalian  City,  Liaoning  province.
Sinovac Dalian received its GMP certificate (2010 version) from the NMPA for its mumps vaccine in September 2012 for five years. The renewed GMP certificate
issued  by  Food  and  Drug  Administration  of  Liaoning  Province  was  obtained  on  February  13,  2018,  which  will  remain  valid  until  February  12,  2023.  The
construction of a varicella vaccine production plant was completed in 2019. The production permit was granted in December 2019 after NMPA’s inspection of our
varicella vaccine production line. The annual capacity of the varicella production line is 5 million doses.

In 2009, we established Sinovac LS focusing on R&D. In 2020, Sinovac LS obtained a drug production license. Currently, Sinovac LS is mainly committed to the
research and development, production and sales of COVID-19 vaccine, CoronaVac. Sinovac LS Ltd is located in the biomedical industry base in Daxing District,
Beijing, which has three existing production bases, Tianfu factory, Yongda factory and Xiangrui factory. Sinovac LS had a rapid growth in 2020. As of the date of
this  annual  report,  Sinovac  LS  has  a  total  of  15  existing  and  under  construction  buildings,  with  a  total  built-out  area  of  144,500  square  meters  and  a  total
construction area of 196,000 square meters. Sinovac LS was granted national and WHO GMP certifications in 2020. When construction is completed and facilities
are put to use, the annual production capacity of CoronaVac by Sinovac LS is expected to reach 2 billion doses.

ITEM 4A.UNRESOLVED STAFF COMMENTS

Not applicable.

ITEM 5. OPERATING AND FINANCIAL REVIEW AND PROSPECTS

You should read the following discussion and analysis of our financial condition and results of operations in conjunction with our consolidated financial statements
and  the  related  notes  included  elsewhere  in  this  annual  report  on  Form  20-F.  This  discussion  may  contain  forward-looking  statements  based  upon  current
expectations that involve risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of
various factors, including those set forth under “Item 3. Key Information — D. Risk Factors” or in other parts of this annual report on Form 20-F.

A.

Operating Results

Overview

We are a fully integrated, China-based biopharmaceutical company that focuses on the research, development, manufacturing and commercialization of vaccines
against infectious diseases. We have successfully developed a portfolio of products, consisting of vaccines against

46

 
hepatitis  A,  hepatitis  B,  EV71,  influenza  viruses,  mumps,  varicella,  pneumococcal  and  COVID-19.  The  following  table  sets  forth  certain  information  on  our
commercialized products.

Products
Healive
Bilive
Anflu
Inlive
Panflu(1)
Panflu.1(1)
Mumps
Varicella
Quadrivalent influenza
Pneumococcal polysaccharide
CoronaVac(2)

Date of Approval

  May 2002
June 2005
  October 2005
January 2016

  April 2008
  September 2009
  September 2012
  December 2019

June 2020

  December 2020
  February 2021

We sold all of our Panflu and Panflu.1 products to the PRC government. Our sales of Panflu and Panflu.1 depend on the completion of government

(1)
audit on our fulfillment to the stockpiling order.
(2)

 CoronaVac was granted conditional marketing authorization in China on February 5, 2021.

Our pipeline consists of various vaccine candidates in the pre-clinical and clinical development phases in China. We obtained the approvals to conduct clinical trials
of PPV, sIPV and QIV in May 2014, November 2015 and November 2016, respectively. And the new drug applications for PPV, sIPV and QIV are received by
NMPA in June 2017, January 2019 and March 2019. NMPA approved and issued a product license for our varicella vaccine, QIV vaccine and PPV vaccine in
December 2019, June 2020 and December 2020, respectively. We initiated the development of an inactivated vaccine (named CoronaVac) against COVID-19 on
January 28, 2019 and began rolling submission to the MMPA since September 2020 and the NMPA carried out rolling reviews when the submission was made. On
February 5, 2021, NMPA granted a conditional marketing authorization to us for CoronaVac in individuals aged 18 and above.

Our Proprietary Rights

Healive was co-developed by Tangshan Yian and the NIFDC. In April 2001, Tangshan Yian contributed its proprietary rights to Healive to Sinovac Beijing as its
capital contribution. In 2002, the NIFDC, Tangshan Yian and Sinovac Beijing agreed that Sinovac Beijing owned the right to market and sell Healive, and that
Sinovac Beijing was required to pay the NIFDC approximately $1 million for the Healive technology consulting fee that Tangshan had not paid by that time. We
obtained Healive’s new drug certificate from the NMPA in December 1999, the production license in May 2002, and final PRC regulatory approval for production
of Healive in May 2002. Production of Healive commenced in July 2002.

Bilive  was  initially  developed  by  Tangshan  Yian.  In  March  2002,  Tangshan  Yian  and  Beijing  Keding  entered  into  an  agreement  under  which  Tangshan  Yian
transferred  to  Beijing  Keding  its  proprietary  rights  to  Bilive  at  no  cost.  In  August  2002,  Sinovac  Beijing  acquired  the  proprietary  rights  to  Bilive  from  Beijing
Keding in consideration of a 10.7% equity interest in Sinovac Beijing and a cash payment of $18,000. Beijing Keding is owned by Mr. Weidong Yin and three other
senior  officers  of  Sinovac  Beijing.  We  received  the  production  license  for  Bilive  from  the  NMPA  in  January  2005.  In  June  2005,  we  obtained  the  final  PRC
regulatory  approval  for  production  of  Bilive.  The  cost  of  the  proprietary  rights  to  Bilive  was  expensed  as  purchased  in-process  research  and  development.
Production of Bilive commenced in June 2005.

In March 2003, Sinovac Beijing acquired the proprietary rights to Anflu from Tangshan Yian at the vendor’s cost. In November 2004, we completed the acquisition
of 100% of the shares of Tangshan Yian. We received final PRC regulatory approval for the production of Anflu in October 2005. The cost of the proprietary rights
to Anflu was expensed as purchased in-process research and development.

Sinovac  Beijing  started  to  research  and  develop  the  H5N1  vaccine  in  2004.  In  2004,  Sinovac  Beijing  entered  into  an  agreement  with  the  National  Institute  for
Biological Standards and Controls (“NIBSC”), an England based laboratory under the WHO, on transferring the H5N1 virus strain. According to the agreement,
Sinovac Beijing as the recipient would receive the materials and information from NIBSC. The agreement indicated that Sinovac Beijing can only use received
materials and information for academic in-house research purposes and Sinovac Beijing shall negotiate with the owner of reverse genetics technology pertaining to
virus strain for any commercial purpose. In April 2008, Sinovac Beijing received a production license for H5N1 from the PRC government and started to produce
H5N1 vaccines for the government-stockpiling program in June 2008.

In 2011, we licensed from MedImmune certain rights to use patented reverse genetics technology pertaining to virus strain production for H5N1 influenza vaccine.
We  have  agreed  to  pay  an  upfront  license  fee,  milestone  payments  up  to  an  aggregate  of  $9.9  million  based  upon  the  achievement  of  cumulative  net  sales  of
licensed products in China (including Hong Kong and Macau), as well as royalty payments in single digit

47

 
 
 
 
 
 
 
 
 
of net sales of the licensed products in China (including Hong Kong and Macau). On August 15, 2012, we entered into amended agreements with MedImmune to,
among  other  things,  extend  the  effectiveness  of  each  agreement  to  reflect  revised  termination  dates  between  December  2015  and  May  2021.  License  fee  and
royalties of $3.4 million accrued at the end of 2011 was paid in 2012. We accrued a royalty of $9,000 at the end of 2018, which was paid in 2019. No royalties were
incurred for the years ended December 31, 2020 and 2019.

No amortization expenses were recorded in 2020, 2019 and 2018 for proprietary rights as they were fully amortized.

Research and Development Programs

The research and development strategy is developed by management and reviewed and approved by the board of directors of our company. Utilizing the resources
and platform of each subsidiary, the R&D team of each subsidiary selects a R&D project and develops a feasibility analysis for review and approval by the board of
directors. Once the project is approved, the R&D progress as well as the spending of each project will be tracked. Each year all the ongoing R&D projects will be
reviewed along with the budgeting for the following year.

We also use our research and development resources, including employees and our technology, across multiple product development programs.

The process of developing, obtaining and maintaining regulatory approvals for new products is lengthy, expensive and uncertain. While the development may take
years  to  complete,  the  market  environment  may  change  from  the  time  when  the  project  is  selected,  which  will  have  an  impact  to  the  expected  return  of  the
investment. We anticipate that we will frequently monitor the progress of each key project and determine which of our early stage product candidates is best suited
for  further  development,  as  well  as  how  much  funding  to  direct  to  each  program,  on  an  on-going  basis  in  response  to  the  scientific  and  clinical  success  and
commercial potential of each product candidate.

We have completed phase III clinical trials for the PPV, filed an application of GMP inspection in February 2020 and received the product license for our PPV
vaccine  from  NMPA  in  December  2020.  We  also  completed  phase  III  clinical  trials  of  sIPV  in  2018  and  file  the  new  drug  application  in  September.  We  have
completed phase III clinical trial on our QIV in 2019, filed the new drug application in March 2020 and received the product license for our QIV vaccine from
NMPA in June 2020. We commenced phase I clinical trial on our COVID-19 vaccine in April 2020, commenced phase III clinical trials in July in Brazil, Turkey,
Indonesia and Chile, filed for conditional marketing authorization in February 2021 and received a conditional marketing authorization for CoronaVac from NMPA
on February 5, 2021.

Government Grants

Deferred  government  grants  represent  funding  received  from  the  government  for  research  and  development,  or  investment  in  building  or  improving  production
facilities. The amount of deferred government grants as of year-end is net of research and development expenditures or depreciation incurred or those recognized as
government grants income. We received government grants that were deferred in the amount of RMB92.4 million ($14.2 million), RMB6.7 million ($1.0 million)
and  RMB23.4  million  ($3.5  million)  in  2020,  2019  and  2018,  respectively.  In  addition,  we  received  RMB21.7  million  ($3.1  million),  RMB3.5  million  ($0.5
million) and RMB1.7 million ($0.3 million) in other government grants and subsidies that were recognized in the statements of comprehensive income in 2020,
2019 and 2018, respectively.

Deferred government grants included the following:

Government grants for property, plant and equipment

We  have  four  deferred  government  grants  related  to  property,  plant  and  equipment.  We  have  fulfilled  the  conditions  attached  to  one  grant  and  expect  to  fulfill
another  one  in  2021.  RMB3.4  million  ($0.6  million)  will  be  amortized  in  2021  which  was  included  in  the  current  portion  of  deferred  government  grant  and
RMB11.2 million ($1.7 million) will be amortized after 2021 which was included in the non-current portion of deferred government grants. RMB2.8 million ($0.4
million) was recorded as a reduction to depreciation expense for the year ended December 31, 2020, as compared to $0.4 million and $0.4 million for the years
ended  December  31,  2019  and  2018,  respectively,  and  RMB0.5  million  ($80,000)  was  recorded  as  government  grant  recognized  in  income  for  the  year  ended
December  31,  2020,  as  compared  to  $79,000  and  $82,000  for  the  years  ended  December  31,  2019  and  2018.  RMB8.4  million  ($1.3  million)  represents  the
unamortized portion of one grant where we received but has not fulfilled the conditions attached to the grants. As we do not expect to fulfill the conditions within
one year, the grant is recorded as a non-current deferred government grant.

Government grants for research and development

We have ten deferred government grants related to various research and development projects. We expect to fulfil the conditions attached to nine grants in 2021 and
recorded RMB95.2 million ($14.6 million) as current portion of deferred government grants, while the remaining one grant’s condition is expected to be fulfilled
after 2021 and RMB8 million ($1.2 million) is recorded in the non-current portion of deferred government grants.

48

 
 
 
Critical Accounting Policies and Estimates

Our consolidated financial information has been prepared in accordance with U.S. GAAP, which requires us to make judgments, estimates and assumptions that
affect (1) the reported amounts of our assets and liabilities, (2) the disclosure of our contingent assets and liabilities at the end of each fiscal period and (3) the
reported amounts of revenues and expenses during each fiscal period. We continually evaluate these estimates based on our own historical experience, knowledge
and assessment of current business and other conditions, our expectations regarding the future based on available information and reasonable assumptions, which
together form our basis for making judgments about matters that are not readily apparent from other sources. Since the use of estimates is an integral component of
the financial reporting process, our actual results could differ from those estimates. Some of our accounting policies require a higher degree of judgment than others
in their application.

When reviewing our financial statements, you should consider (1) our selection of critical accounting policies, (2) the judgment and other uncertainties affecting the
application  of  those  policies  and  (3)  the  sensitivity  of  reported  results  to  changes  in  conditions  and  assumptions.  We  believe  the  following  accounting  policies
involve the most significant judgment and estimates used in the preparation of our financial statements.

Revenue from Contracts with Customers

We adopted ASC Topic 606 Revenue from Contracts with Customers (“ASC 606”), on January 1, 2018, using the modified retrospective method.

Revenue  is  recognized  when  control  of  promised  goods  is  transferred  to  our  customers  in  an  amount  of  consideration  of  which  we  expect  to  be  entitled  to  in
exchange for the goods, and we can reasonably estimates return provision for the goods.

The  product  return  provisions  are  estimated  based  on  historical  return  and  exchange  data  as  well  as  the  inventory  levels  and  the  remaining  shelf  lives  of  the
products in the distribution channels.

As  of  December  31,  2020,  sales  return  provision  for  our  vaccine  products  was  $12.1  million,  compared  to  $3.7  million  as  of  December  31,  2019.  Sales  return
provision as a percentage of sales was 2.4% and 1.5% in 2020 and 2019, respectively.

For  the  year  ended  December  31,  2020,  we  did  not  have  any  significant  incremental  costs  of  obtaining  contracts  with  customers  incurred  or  costs  incurred  in
fulfilling contracts with customers within the scope of ASC Topic 606, that shall be recognized as an asset and amortized to expenses in a pattern that matches the
timing of the revenue recognition of the related contract.

We do not have amounts of contract assets since revenue is recognized as control of goods is transferred. The contract liabilities consist of advance payments from
customers. The contract liabilities are reported in a net position on a customer-by-customer basis at the end of each reporting period. All contract liabilities are
included in deferred revenue in the Consolidated Balance Sheets.

For the year ended December 31, 2020, we recognized sales of $4.9 million related to contract liabilities at January 1, 2020.

Allowance for Doubtful Accounts

We  adopted  Accounting  Standards  Update  (ASU)  2016-13,  “Financial  Instruments  –  Credit  Losses  (Topic  326):  Measurement  of  Credit  Losses  on  Financial
Instruments” (“ASU 2016-13”) which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. We extend
unsecured credit to our customers in the ordinary course of business but mitigate the associated risks by performing credit checks and actively pursuing past due
accounts. An allowance for doubtful accounts is established and recorded based on management’s assessment of the credit history with the customer and current
relationships with them.

We also maintain an allowance for doubtful accounts for estimated losses based on our assessment of the collectability of specific customer accounts and the aging
of the accounts receivable. We analyze accounts receivable and historical bad debts, customer concentrations, customer solvency, current economic and geographic
trends, and changes in customer payment terms and practices when evaluating the adequacy of our current and future allowance. In circumstances where we are
aware  of  a  specific  customer’s  inability  to  meet  its  financial  obligations  to  us,  a  specific  allowance  for  bad  debt  is  estimated  and  recorded,  which  reduces  the
recognized receivable to the estimated amount we believe will ultimately be collected. We monitor and analyze the accuracy of the allowance for doubtful accounts
estimate by reviewing past collectability and adjust it for future expectations to determine the adequacy of our current and future allowance. Our reserve levels have
generally been sufficient to cover credit losses. Our allowance for doubtful accounts as of December 31, 2020 was $6.7 million, compared to $4.2 million as of
December  31,  2019.  If  the  financial  condition  of  our  customers  were  to  deteriorate,  resulting  in  an  impairment  of  their  ability  to  make  payments,  additional
allowances may be required. Bad debt provision was $2.6 million for the year ended December 31, 2020 as compared with a recovery of $0.3 million for the year
ended December 31, 2019.

Inventory Provision

We write off all the unsold seasonal influenza vaccines before the end of the flu season at the end of the fiscal year, except for those distributed after the end of the
fiscal year. In addition, we estimate an inventory provision for existing Healive, Bilive, Inlive, Anflu, Mumps, Varicella and CoronaVac products in inventory after
considering the sales forecasts, the conditions of the raw material inventory, as well as the expiration dates of these products. The inventory provision in 2020, 2019
and 2018 was $5.8 million, $0.6 million and $2.5 million, respectively.

49

 
Impairment of Long-Lived Assets

Long-lived assets, including property, plant and equipment and intangible assets subject to amortization, are reviewed for impairment whenever events or changes
in circumstances indicate that the carrying value of an asset group may not be recoverable from the future undiscounted net cash flows expected to be generated by
the asset group. An asset group is identified as assets at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets.

If the asset group is not fully recoverable, an impairment loss would be recognized for the difference between the carrying value of the asset group and its estimated
fair value, based on the discounted net future cash flows or other appropriate methods, such as comparable market values. We use estimates and judgments in the
impairment tests and the timing and amount of impairment charges could be materially different if different estimates or judgments are utilized. We did not record
any impairment charges on long-lived assets in 2020, 2019 and 2018.

Income Tax Valuation Allowance

In 2020, we recorded $26.9 million of deferred income tax assets based on the difference in timing of certain deductions for income tax and accounting purposes.
We  evaluate  our  valuation  allowance  requirements  at  each  reporting  period  by  reviewing  all  available  evidence,  both  positive  and  negative,  and  considering
whether, based on the weight of that evidence, a valuation allowance is needed. When a change in circumstances causes a change in management’s judgment about
the reliability of deferred tax assets, the impact of the change on the valuation allowance is generally reflected in income from operations. The future realization of
the tax benefit of an existing deductible temporary difference ultimately depends on the existence of sufficient taxable income of the appropriate character within
the carry forward period available under applicable tax law.

Recently Issued Accounting Standards

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts
in  Entity’s  Own  Equity  (Subtopic  815-40)  (“ASU  2020-06”),  which  reduces  the  number  of  accounting  models  for  convertible  debt  instruments  and  convertible
preferred stock that simplifies the accounting for convertible instruments. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021, including
interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of adoption on its consolidated financial statements.

RESULTS OF OPERATIONS

Consolidated statements of comprehensive income data

Sales
Cost of sales(1)
Gross profit
Operating expenses:
Selling, general and administrative expenses(1)
Provision (recovery) for doubtful accounts
Research and development expenses(1)
Loss on disposal and impairment of property, plant and equipment
Government grants recognized in income
Total operating expenses
Operating income
Interest and financing expenses
Interest income
Other income
Income before income taxes
Income tax expenses
Net income
Less: income attributable to non-controlling interests
Net income attributable to the shareholders of Sinovac
Preferred stock dividends
Net income attributable to common shareholders of Sinovac
Comprehensive income
Less: comprehensive income attributable to non-controlling interests
Comprehensive income attributable to shareholders of Sinovac

Year ended December 31,
2020
2018
2019
(in thousands except share and per share data)

510,624    $
67,180   
443,444   

176,534   
2,640   
48,760   
163   
(297)  
227,800   
215,644   
(1,453)  
1,930   
496   
216,617   
(31,438)  
185,179   
(74,810)  
110,369   
(6,015)  
104,354   
217,507   
(82,892)  
134,615    $

246,053    $
32,469   
213,584   

121,468   
(306)  
24,254   
294   
(688)  
145,022   
68,562   
(650)  
1,996   
912   
70,820   
(5,605)  
65,215   
(20,286)  
44,929   
(5,128)  
39,801   
62,388   
(19,681)  
42,707    $

229,650 
24,723 
204,927 

137,003 
820 
21,910 
75 
(197)
159,611 
45,316 
(1,070)
2,016 
321 
46,583 
(10,472)
36,111 
(14,329)
21,782 
— 
21,782 
25,115 
(12,507)
12,608 

  $

  $

50

 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(1)

Includes share-based compensation of $10.2 million, $3.0 million and $4.3 million in 2020, 2019 and 2018, respectively.

Sales

Revenues  from  sales  represent:  (1)  the  invoiced  value  of  goods,  net  of  value  added  taxes,  and  sales  returns.  See  “Item  5.  Operating  and  Financial  Review  and
Prospects — A. Operating Results — Taxes and incentives.” We recognize revenues when control of promised goods is transferred to our customers in an amount
of consideration of which we expect to be entitled to in exchange for the goods, and we can reasonably estimates return provision for the goods.; and (2) the value
of goods produced for government stockpiling program. We recognize revenues from the sales of products to the government stockpiling program when cash has
been received and the products have expired and passed government inspection or are delivered per government instruction.

Our revenues, growth and results of operations depend on several factors, including the level of acceptance of our products among doctors, hospitals and patients,
and  our  ability  to  maintain  or  increase  prices  for  our  products  at  levels  that  provide  favorable  margins.  The  level  of  acceptance  among  doctors,  hospitals  and
patients is influenced by the performance, promotion and academic research, and pricing of our products.

We market and sell our vaccine products primarily through provincial and municipal CDCs. We enter into sales agreements with CDCs each time a CDC places a
purchase  order.  Pursuant  to  these  sales  agreements,  CDCs  typically  agree  not  to  re-sell  our  products  to  regions  outside  the  territory  the  pertinent  CDC  covers
administratively. Since hepatitis A vaccines were included into government sponsored expended immunization program in 2007, we have actively participated in
the tender and bidding organized by various provincial CDCs. We enter into sales agreements with CDCs when we win a bid.

Pricing

In the private market, we set our price based on our production cost, the price of competitive products and acceptance level of CDCs and patients. We also adjust
our product price according to changes in the external environment to balance sales volume and gross profit, and ultimately to maximize sales profit margins.

In the public market, the government purchases vaccines for EPI market by issuing government tenders. During the evaluation process, price is a key factor which
impacts the result of the tender. Therefore, we need to price our products competitively to win the tenders. We believe that our emphasis on product quality is an
advantage and increases our competitiveness.

Cost of sales

Our cost of sales primarily consists of material, direct labor and production overheads. Depreciation of property, plant and equipment attributable to manufacturing
activities and license amortization are capitalized as part of inventory, and expensed as cost of sales when product is sold. Cost of goods sold in 2020, 2019 and
2018 amounted to $67.2 million, $32.5 million and $24.7 million, respectively, of which idle capacity amounted to $1.7 million, $3.8 million and $2.7 million,
respectively. We produce our products and conduct the final product packaging in-house.

Our production capacity has not been fully utilized. If we successfully commercialized new products and increase sales of existing products, we expect the unit
production cost to decrease.

Selling, general and administrative expense

Selling and marketing expenses consist primarily of salaries and related expenses for personnel engaged in sales, marketing and customer support functions and
costs associated with marketing activities and shipping. Selling expense increased 51.4% from $91.5 million in 2019 to $138.6 million in 2020, which accounted
for 27.1% of total sales revenue of 2020.

General and administrative expense consists primarily of compensation for employees in executive and operational functions, including finance and accounting,
business  development  and  human  resources.  Other  significant  costs  include  facilities  costs,  share-based  compensation  and  professional  fees  for  accounting  and
legal services.

Research and development expenses

Our research and development expenses consist primarily of:

•

•

•

salaries and related expenses for personnel;

fees paid to consultants and clinical research organizations in conjunction with their independent monitoring of our clinical trials and acquiring and evaluating
data in conjunction with our clinical trials;

consulting fees paid to third parties in connection with other aspects of our product development efforts;

51

 
 
•

•

•

costs of materials used in research and development;

depreciation of facilities and equipment used to develop our products; and

technology license fees and milestone payments paid to third parties before a product receives regulatory approval.

We expense both internal and external research and development costs as incurred, other than capital expenditures that have alternative future uses, such as the
build-out of our plant, or license fees and milestone payments made to third parties after regulatory approval is received. We expect our research and development
costs will continue to be substantial and that they will increase as we advance our current portfolio of product candidates through clinical trials and move other
product candidates into pre-clinical and clinical trials.

Taxes and incentives

Sinovac  Beijing,  Sinovac  LS,  Sinovac  Dalian  and  Sinovac  Biomed  are  subject  to  income  taxes  in  China  on  their  taxable  income  calculated  at  a  tax  rate  in
accordance with the relevant income tax laws and regulations. Income tax returns filed by our PRC subsidiaries for tax years beginning in 2010 have been subject
to examination by tax authorities.

Effective from January 1, 2008, the PRC’s statutory income tax rate is 25%. Our PRC subsidiary Sinovac Biomed is subject to income tax at the statutory rate of
25%. Sinovac Beijing and Sinovac Dalian, have been reconfirmed as a “High and New Technology Enterprise,” or HNTE in 2020 for a period of three years, and
Sinovac  LS,  has  been  confirmed  as  a  HNTE  in  2020  for  a  period  of  three  years,  are  subject  to  a  preferential  income  tax  rate  of  15%  from  2020  to  2022.  We
determine deferred taxes for each tax-paying entity in each tax jurisdiction. The potential tax benefits arising from the losses incurred by the subsidiaries have been
recorded in our financial statements.

We  evaluate  our  valuation  allowances  requirements  at  each  reporting  period  by  reviewing  all  available  evidence,  both  positive  and  negative,  and  considering
whether, based on the weight of that evidence, a valuation allowance is needed. When a change in circumstances causes a change in management’s judgment about
the ability to realize deferred tax assets, the impact of the change on the valuation allowance is generally reflected in income from operations. The future realization
of the tax benefit of an existing deductible temporary difference ultimately depends on the existence of sufficient taxable income of the appropriate character within
the carry forward period available under applicable tax law.

Tax losses of our PRC subsidiaries in the amount of RMB12.6 million ($1.9 million) as of December 31, 2020 will expire from 2021 to 2030, if not utilized.

Year Ended December 31, 2020 Compared to Year Ended December 31, 2019

Sales. Total sales in 2020 increased by 107.5% to $510.6 million from $246.1 million in 2019. The growth was mainly contributed by sales of CoronaVac.

The table below sets forth a breakdown of our sales by market type:

Sales

EPI
Private Pay
Export
Total sales

Year ended December 31,

2020

2019

(in thousands)

  $

  $

96,799    $
268,821   
145,004   
510,624    $

6,896 
220,217 
18,940 
246,053 

Gross Profit. Gross profit in 2020 increased by 107.6% to $443.4 million from $213.6 million in 2019. Gross margin percentage 86.8% was the same compared
with last year.

Selling, General and Administrative Expenses. Selling, general and administrative expenses in 2020 increased by 45.3% to $176.5 million from $121.5 million in
2019. The increase was mainly due to higher sales and marketing dedicated for revenue growth.

We recorded total share-based compensation of $10.2 million in 2020, compared to $3.0 million in 2019. As of December 31, 2020 and 2019, we had unrecognized
compensation costs of $6.6 million and $9.6 million, respectively. This unearned component will be recognized over a period of 26 months.

Research and Development Expenses. Research and development expenses in 2020, primarily represented expenditures on the advancement of pipeline vaccines,
including pneumococcal vaccines, sIPV and COVID-19 vaccines, increased by 101.0% to $48.8 million from $24.3 million in 2019.

Interest and Financing Expenses. Interest and financing expense increased by 123.5% to $1.5 million from $0.7 million in 2019.

52

 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
Income Tax Expenses. Income tax expense was $31.4 million in 2020, compared to an income tax expenses of $5.6 million in 2019.

Net Income. Net income was $185.2 million in 2020, compared to $65.2 million in 2019. Net income attributable to shareholders of Sinovac was $110.4 million in
2020, compared to $44.9 million in 2019. Net income attributable to common shareholders of Sinovac was $104.4 million in 2020, compared to $ 39.8 million in
2019.

Year Ended December 31, 2019 Compared to Year Ended December 31, 2018

Sales.  Total  sales  in  2019  increased  by  7.1%  to  $246.1  million  from  $229.7  million  in  2018.  Revenue  recognition  of  Panflu  under  the  government  stockpiling
program in 2019 and 2018 were nil. The growth was mainly contributed by sales of mumps vaccines and Anflu.

The table below sets forth a breakdown of our sales by market type:

Sales

EPI
Private Pay
Export
Total sales

Year ended December 31,

2019

2018

(in thousands)
6,896    $

220,217   
18,940   
246,053    $

10,357 
204,764 
14,529 
229,650 

  $

  $

Gross Profit. Gross profit in 2019 increased by 4.2% to $213.6 million from $204.9 million in 2018. Gross margin percentage decreased to 86.8% in 2019 from
89.2% in 2018. The decrease of gross margin was mainly due to lower gross profit on Anflu in 2019.

Selling, General and Administrative Expenses. Selling, general and administrative expenses in 2019 decreased by 11.3% to $121.5 million from $137.0 million in
2018. The decrease was mainly due to lower professional and consulting fees associated with ongoing litigations.

We recorded total share-based compensation of $3.0 million in 2019, compared to $4.3 million in 2018. As of December 31, 2019 and 2018, we had unrecognized
compensation costs of $9.6 million and $12.6 million, respectively. This unearned component will be recognized over a period of 38 months.

Research and Development Expenses. Research and development expenses in 2019, primarily represented expenditures on the advancement of pipeline vaccines,
including pneumococcal vaccines, sIPV and varicella vaccine, increased by 10.7% to $24.3 million from $21.9 million in 2018.

Interest and Financing Expenses. Interest and financing expense decreased by 39.3% to $0.7 million from $1.1 million in 2018. There were $nil, $nil and $0.3
million of interest subsidies received in 2019, 2018 and 2017, respectively.

Income Tax Expenses. Income tax expense was $5.6 million in 2019, compared to an income tax expense of $10.5 million in 2018.

Net Income. Net income was $65.2 million in 2019, compared to $36.1 million in 2018. Net income attributable to shareholders of Sinovac was $44.9 million in
2019, compared to $21.8 million in 2018. Net income attributable to common shareholders of Sinovac Antigua was $39.8 million in 2019, compared to $ 21.8
million in 2018.

Cash Flows and Working Capital

The following table sets forth a summary of our net cash flows for the periods indicated:

Net cash provided by operating activities
Net cash used in investing activities
Net cash provided by financing activities
Effect of exchange rate changes on cash and cash equivalents and restricted cash
Increase (decrease) in cash and cash equivalents and restricted cash
Cash and cash equivalents and restricted cash at beginning of period
Cash and cash equivalents and restricted cash at end of period

53

2020

Year ended December 31,
2019
(in thousands)

2018

  $

  $

479,309    $
(204,756)  
592,566   
27,207   
894,326   
155,878   
1,050,204    $

39,074    $
(42,454)  
1,737   
(649)  
(2,292)  
158,170   
155,878    $

7,943 
(25,261)
64,180 
(4,656)
42,206 
115,964 
158,170 

 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating Activities

Net cash provided by operating activities was $479.3 million in 2020, compared to net cash provided by operating activities of $39.1 million in 2019. Net cash
provided  by  our  operating  activities  in  2020  resulted  primarily  from  our  net  income  of  $185.2  million  and  an  increase  in  deferred  revenue  of  $339.3  million,
partially offset by an increase of inventory of $77.7 million.

Net  cash  provided  by  operating  activities  was  $39.1  million  in  2019,  compared  to  net  cash  provided  by  operating  activities  of  $7.9  million  in  2018.  Net  cash
provided by our operating activities in 2019 resulted primarily from our net income of $65.2 million and an increase in accounts payable and accrued liabilities of
$6.8 million, partially offset by an increase of accounts receivable of $40.2 million.

Investing Activities

Net cash used in investing activities was $204.8 million in 2020, compared to $42.5 million in 2019. We invested primarily in short-term investments and property,
plant and equipment in 2020.

Net cash used in investing activities was $42.5 million in 2019, compared to $25.3 million in 2018. We invested primarily in short-term investments in 2019

Financing Activities

Net cash provided by financing activities was $592.6 million in 2020, compared to $1.7 million in 2019. In 2020, we received proceeds of $541.0 million from a
subsidiary’s financing activities, loan proceeds of $33.2 million and made loan repayments of $6.0 million.

Net cash provided by financing activities was $1.7 million in 2019, compared to $64.2 million in 2018. In 2019, we received loan proceeds of $2.1 million and
made loan repayments of $3.3 million.

Accounts Receivable

Our total accounts receivable, including other receivables, increased by 122.9% from $113.7 million as of December 31, 2019 to $253.5 million as of December 31,
2020. Our average accounts receivable turnover time in 2020 was 134 days, compared to 144 days in 2019.

Our maximum exposure to credit risk at the balance sheet dates relating to accounts receivables is summarized as follows:

Aging within one year, net of allowance for doubtful accounts
Aging greater than one year, net of allowance for doubtful accounts
Total trade receivable

54

Year ended December 31,

2020

2019

(in thousands)

240,266    $
10,365   
250,631    $

108,635 
3,462 
112,097 

  $

  $

 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
Borrowings

As  of  December  31,  2020,  we  had  $32.9  million  in  short-term  bank  loans,  offset  by  $1,041.0  million  in  cash  and  cash  equivalents,  resulting  in  a  liquid  assets
balance of $1,008 million, compared with $146.8 million at the end of December 31, 2019. The following tables summarize our short-term and long-term bank
borrowings as of December 31, 2020:

Bank loan from Bank of China

Type

Bank loan from Bank of China

Bank loan from SPD Silicon Valley Bank

Bank loan from
Guangdong Development Bank
Bank loan from China Merchants Bank

Bank loan from China Merchants Bank

Bank loan from China Everbright Bank

Amount

RMB7 million
($1.1 million)
RMB6 million
($0.9 million)
RMB42.4 million
($6.5 million)
RMB9.0 million
($1.4 million)
RMB0.7 million
($0.1 million)
RMB1.6 million
($0.2 million)
RMB13.0 million
($2.0 million)

Annual
Interest
Rate

Interest
Payment

Maturity Date

Purpose

5.00%  

monthly

  March 13, 2021

  operation

4.40%  

monthly

  December 9, 2021

  operation

5.10%  

quarterly

5.00%  

monthly

On or before August 6,
2021
On or before
November 29, 2021

  operation

  operation

5.60%  

monthly

  December 31, 2021

  mortgage

5.60%  

monthly

  May 26, 2023

  mortgage

5.88%  

quarterly

  November 16, 2028

purchase of property
plant and equipment

On November 20, 2019, Sinovac Dalian entered into a maximum credit facility of RMB20 million ($3.1 million) with Bank of China to finance its working capital
requirements.  RMB7  million  ($1.0  million)  was  drawn  on  December  24,  2019  and  was  repaid  on  December  24,  2020.  On  March  13,  2020,  Sinovac  Dalian
withdrew RMB7 million ($1.1 million) with an annual interest rate at 95 basis point above the prime rate of a one year term loan published by the People’s Bank of
China, at 5.00%. On December 9, 2020, Sinovac Dalian withdrew RMB 6 million ($0.9 million) with an annual interest rate at 55 basis point above the prime rate
of  a  one  year  term  loan  published  by  the  People’s  Bank  of  China,  at  4.40%.  Interest  is  payable  monthly  and  the  loans  are  repayable  on  March  13,  2021  and
December 9, 2021, respectively. Buildings of Sinovac Dalian with a net book value of RMB 16.1 million ($2.5 million) were pledged as a collateral.

On November 25, 2019, Sinovac Dalian entered into a revolving bank loan with SPD Silicon Valley Bank with the aggregate principal of RMB50 million ($7.7
million) to finance its working capital requirements. The revolving loan bears interest at 125 basis points above the prime rate of a one-year term loan published by
the People’s Bank of China, with a weighted average rate at 5.1% and interest is payable quarterly. Each withdraw from the revolving loan has a maximum term of
12  months.  RMB7.6  million  ($1.1  million)  was  drawn  in  2019  and  repaid  in  December  2020.  The  outstanding  balance  of  RMB42.4  million  ($6.5  million)  was
drawn during 2020 and is payable on or before August 6, 2021.  

On November 5, 2020, Sinovac Dalian entered into a maximum credit facility of RMB9 million ($1.4 million) with Guangdong Development Bank to finance its
working capital requirements. RMB9.0 million ($1.4 million) was drawn during 2020 and payable on or before November 29, 2021. The loan bears interest at 115
basis  point  above  the  prime  rate  of  a  one  year  term  loan  published  by  the  People’s  Bank  of  China,  at  5%  and  interest  is  payable  monthly.  Prepaid  land  lease
payments of Sinovac Dalian with a net book value of RMB14.3 million ($2.2 million) were pledged as collateral.

On May 26, 2020, Sinovac Dalian entered into four mortgages in the total amount of RMB2.1 million ($0.3 million) with China Merchants Bank to purchase four
apartments. The loans bear annual interest rate at 175 basis point above the prime rate of a one year term loan published by the People’s Bank of China, at 5.6%.
Principals and interests are repaid monthly over a term of 36 months. Sinovac Dalian repaid RMB0.4 million ($58,000) in principal and interest in 2020. As of
December 31, 2020, RMB0.7 million ($0.1 million) is recorded in bank loans due within one year and RMB1.1 million ($0.2 million) is recorded in long-term bank
loans.

On November 17, 2020, Sinovac Dalian entered into a maximum credit facility of RMB 200 million ($30.7 million) is to finance Sinovac Dalian’s purchase of
property plant and equipment, with a term from November 17, 2020 to November 16, 2028. The loan bears annual interest rate at 123 basis point above the prime
rate of a five year term loan published by the People’s Bank of China, at 5.88%. Interest is payable quarterly and principal installment repayments begin in 2023
and shall be fully paid by November 16, 2028. Certain plant and machinery and equipment of

55

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Sinovac Dalian with a net book value of RMB150.2 million ($23.1 million) were pledged as collateral. Sinovac Dalian withdrew RMB13 million ($2.0 million) on
December 14, 2020 and will be repaid during 2023 to 2028.

Bank loan from Bank of Beijing

Type

Bank loan from SPD Silicon Valley Bank

Bank loan from SPD Silicon Valley Bank

Amount
RMB30 million
($4.6 million)
RMB49.9 million
($7.7 million)
RMB69.9 million
($10.7 million)

Annual
Interest
Rate

Interest
Payment

Maturity Date

Purpose

3.05%  

quarterly

  March 31, 2021

  operation

5.05%  

quarterly

5.05%  

quarterly

On or before October
15, 2021
On or before October
15, 2021

  operation

  operation

On  March  31,  2020,  Sinovac  LS  entered  into  a  maximum  credit  facility  of  RMB30  million  ($4.6  million)  with  Bank  of  Beijing  to  finance  its  working  capital
requirements.  RMB30  million  ($4.6  million)  was  drawn  on  March  31,  2020  with  an  annual  interest  rate  of  3.05%.  Interest  is  payable  monthly  and  the  loan  is
payable on March 31, 2021.

On May 14, 2020 and September 3, 2020, Sinovac LS entered into two revolving bank loans with SPD Silicon Valley Bank with the aggregate principal of RMB50
million ($7.7 million) and RMB70 million ($10.7 million), respectively, to finance its working capital requirements. The revolving loan bears interest at 120 basis
points  above  the  prime  rate  of  a  one-year  term  loan  published  by  the  People’s  Bank  of  China,  with  a  weighted  average  rate  at  5.05%  and  interest  is  payable
quarterly. Each withdraw from the revolving loans has a maximum term of 12 months. The outstanding balance of RMB119.8 million ($18.4 million) was drawn
during 2020 and is payable on or before October 15, 2021.  

Our weighted average effective interest rate on outstanding borrowings was 4.84%, 5.09% and 4.91% for the years ended December 31, 2020, 2019 and 2018,
respectively. We have not historically used, and do not expect to use in the future, any derivative financial instruments to manage our exposure to interest risk.

Restrictions on Cash Dividends

We are a holding company, and we rely in part on dividends paid by our subsidiaries, Sinovac Beijing, Sinovac Dalian, Sinovac LS and Sinovac Biomed for our
cash  needs,  mainly  our  operating  expenses.  The  payment  of  dividends  in  China  is  subject  to  limitations.  Regulations  in  the  PRC  currently  permit  payment  of
dividends only out of accumulated profits as determined in accordance with accounting standards and regulations in China. Our subsidiary is also required to set
aside at least a portion of its after-tax profit based on PRC accounting standards each year to fund the statutory surplus reserves.

The reserves can be used to recoup previous years’ losses, if any, and, subject to the approval of the relevant PRC government authority, may be converted into
share  capital  in  proportion  to  their  existing  shareholdings,  or  by  increasing  the  par  value  of  the  shares  currently  held  by  them.  Such  reserves,  however,  are  not
distributable as cash dividends. In addition, at discretion of their board of directors, our subsidiaries may allocate a portion of their after-tax profits based on PRC
accounting standards to the employee welfare and bonus funds, which shall be utilized for collective staff benefits. In addition, if Sinovac Beijing, Sinovac Dalian,
Sinovac LS or Sinovac Biomed incurs debt on its own behalf in the future, the instruments governing the debt may restrict the ability of one or more of our PRC
subsidiaries, as the case may be, to pay dividends or make other distributions to us.

The  ability  of  our  subsidiary  to  convert  renminbi  into  U.S.  dollars  and  make  payments  to  us  is  subject  to  PRC  foreign  exchange  regulations.  Under  these
regulations,  the  renminbi  is  convertible  for  current  account  items,  including  the  distribution  of  dividends,  interest  payments,  trade  and  service-related  foreign
exchange  transactions.  Conversion  of  renminbi  for  capital  account  items,  such  as  direct  investment,  loan,  security  investment  and  repatriation  of  investment,
however, is still subject to the approval of SAFE. See “Item 10. Additional Information — D. Exchange Controls.”

Capital Expenditures

We made capital expenditures of $127.7 million, $10.6 million and $5.6 million in 2020, 2019 and 2018, respectively. As of December 31, 2020, our commitments
related to capital expenditures of approximately $45.3 million were primarily for the construction of our COVID-19 vaccine production facilities. We will finance
such commitments through cash generated from operations.

C.

Research and Development, Patents and Licenses, Etc.

See discussions under “Item 5. Operating and Financial Review and Prospects — A. Operating Results — Research and Development Programs.”

56

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
D.

Trend Information

Other than as disclosed elsewhere in this annual report, we are not aware of any trends, uncertainties, demands, commitments or events for the period from January
1, 2020 to December 31, 2020 that are reasonably likely to have a material adverse effect on our net revenues, income, profitability, liquidity or capital resources, or
that caused the disclosed financial information to be not necessarily indicative of future operating results or financial conditions.

E.

Off-Balance Sheet Arrangements

We do not, and did not, have any interest in variable interest entities or any other off-balance sheet arrangements that require disclosure.

F.

Tabular Disclosure of Contractual Obligations

The following table summarizes our estimated contractual obligations and commitments as of December 31, 2020 for the periods indicated:

Debt obligations including amount owing to related
   party (including interest)
R&D expenses, liabilities and commitment
Operating lease obligations
Purchase of facilities commitments
Accounts payable and accrued liabilities
Total

G.

Safe Harbor

Less
than
1 year

Total

2-3 years
(in thousands)

4-5
years

More
than
5 years

  $

  $

50,282    $
3,886     
114,403     
45,306     
211,428     
425,305    $

40,878    $
3,886     
7,700     
45,306     
211,428     
309,198    $

7,134    $
—     
21,366     
—     
—     
28,500    $

851    $
—     
21,907     
—     
—     
22,758    $

1,419 
— 
63,430 
— 
— 
64,849 

This  annual  report  on  Form  20-F  contains  forward-looking  statements  that  relate  to  future  events,  including  our  future  operating  results  and  conditions,  our
prospects  and  our  future  financial  performance  and  condition,  all  of  which  are  largely  based  on  our  current  expectations  and  projections.  The  forward-looking
statements are contained principally in the sections entitled “Item 3. Key Information — D. Risk Factors,” “Item 4. Information on the Company” and “Item 5.
Operating and Financial Review and Prospects.” These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act
of  1995.  You  can  identify  these  forward-looking  statements  by  terminology  such  as  “may,”  “will,”  “expect,”  “anticipate,”  “future,”  “intend,”  “plan,”  “believe,”
“estimate,” “is/are likely to” or other and similar expressions. Forward-looking statements involve inherent risks and uncertainties. A number of factors could cause
actual results to differ materially from those contained in any forward-looking statement, including but not limited to the following:

•

•

•

•

•

•

•

•

•

•

our ability to maximize sales of our existing products within the Chinese market;

our ability to develop new vaccines;

our ability to improve our existing vaccines and lower our production costs;

our ability to expand our manufacturing facilities to meet the needs of the growing Chinese market and other geographic markets;

our ability to acquire new technologies and products;

uncertainties  in  and  the  timeliness  of  obtaining  necessary  governmental  approvals  and  licenses  for  marketing  and  sale  of  our  vaccines  in  certain  overseas
markets;

our ability to compete successfully against our competitors;

risks associated with our corporate structure and the regulatory environment in China;

ongoing litigation between our Company and certain of our shareholders; and

other risks outlined in our filings with the Securities and Exchange Commission including this annual report on Form 20-F.

The forward-looking statements made in this annual report on Form 20-F relate only to events or information as of the date on which the statements are made in
this annual report on Form 20-F. Except as required by law, we undertake no obligation to update or revise publicly any

57

 
 
 
 
   
   
   
   
 
 
 
 
   
   
   
   
 
forward-looking statements, whether as a result of new information, future events or otherwise, after the date on which the statements are made or to reflect the
occurrence of unanticipated events. You should read this annual report on Form 20-F completely and with the understanding that our actual future results may be
materially different from what we expect.

ITEM 6. DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES

A. Directors and Senior Management

The following table sets forth information regarding our directors and executive officers as of the date of this annual report:

Directors and Executive Officers
Weidong Yin
Simon Anderson(1) (2) (3)
Yuk Lam Lo(1) (2) (3)
Kenneth Lee(2) (3)
Meng Mei(1) (2) (3)
Shan Fu
Nan Wang
Qiang Gao
Jing Li

(1) Member of the audit committee.
(2) Member of the corporate governance and nominating committee.
(3) Member of the compensation committee.

Age
57
59
71
52
66
54
54
44
47

Position/Title

  Chairman, President, Chief Executive Officer
  Independent Director
  Independent Director
  Independent Director
  Independent Director
  Independent Director
  Chief Financial Officer, Vice President
  Vice President, Chief Operating Officer
  Vice President, Quality and Production

Mr. Weidong Yin has served as our chairman, president, chief executive officer and secretary since September 2003. He previously worked as a medical doctor in
infectious disease at the China Center for Disease Control and Prevention, Tangshan City, Hebei province. Mr. Yin has been dedicated to hepatitis research for over
20  years  and  was  instrumental  in  the  development  of  Healive.  In  addition,  Mr.  Yin  has  been  appointed  as  the  principal  investigator  by  the  Chinese  Ministry  of
Science  and  Technology  for  many  key  governmental  R&D  programs  such  as  Inactivated  Hepatitis  A  Vaccine  R&D,  Inactivated  SARS  Vaccine  R&D  and  New
Human  Influenza  Vaccine  (H5N1)  R&D.  He  is  also  the  president  of  Zhongguancun  Listed  Companies  Association.  He  obtained  his  MBA  from  the  National
University of Singapore.

Mr. Simon Anderson has served as an independent director of our company since July 2004. He is a member of our audit, compensation, and corporate governance
and  nominating  committees.  Mr.  Anderson  advises  companies  listed  on  North  American  stock  exchanges  and  private  businesses  in  the  areas  of  regulatory
compliance,  exchange  listings  and  financial  operations.  He  is  a  member  of  the  Chartered  Professional  Accountants  of  British  Columbia,  having  qualified  as  a
Chartered Accountant in 1986. Mr. Anderson serves as a director of IBC Advanced Alloys Corp., which manufactures and processes alloys at its U.S. plants.

Mr. Yuk Lam Lo has served as an independent director of our company since March 2006. Mr. Lo is a member of the audit, compensation and corporate governance
and nominating committees. Currently Mr. Lo is serving as the Founding President of HK BioMed Innotech Association and the Honorary Founding Chairman of
Hong Kong Biotechnology Organization. In the educational area, Mr. Lo has been elected as an Honorary Fellow of the Hong Kong University of Science and
Technology. He is also the Honorary Professor of several universities in China. Mr. Lo was heavily involved in several committees of the HKSAR Government.
Previously he served as the Chairman of the Advisory Council for Food Safety of the Food and Health Bureau HKSAR, Director of the Hong Kong Applied R&D
Fund  Co.  Ltd.,  Chairman  of  the  Biotechnology  Committee  of  the  Hong  Kong  Industry  &  Technology  Development  Council,  and  Chairman  of  Biotechnology
Projects Vetting Committee of the Innovation and Technology Fund, HKSAR. In Mainland China, Mr. Lo is a member of Chinese People’s Political Consultative
Conference  in  Jilin  Province.  He  previously  served  as  a  consultant  of  the  Centre  for  Disease  Control  and  Prevention  of  China.  In  the  business  sector,  he  is  an
Independent Director of Luye Pharma Group Limited (2186.HK), Chairman of GT Healthcare Capital Partners, and Partner & Investment Committee Member of
Hangsen Investment Management Limited. In recognition of his leadership in the community and dedication to his field, Mr. Lo has received many awards, such as
the “Pericles International Prize” in 2019. He is the second Asian and the first person from Hong Kong to be awarded the Prize since it was founded in 1986. In
2020, Mr. Lo was awarded the Bronze Bauhinia Star from the HKSAR government for his outstanding services over the past decades.

Mr.  Kenneth  Lee  is  an  independent  director  of  Sinovac.  He  has  served  on  our  board  of  directors  since  May  2011.  In  July  2012,  the  board  appointed  him  as  a
member of the compensation committee and corporate governance and nominating committee. Mr. Lee has more than 20 years of experience across private equity
investments, corporate finance, and business development in China. He is a non-executive director on the board of another Chinese company listed on the Stock
Exchange of Hong Kong. Mr. Lee was a partner at SAIF Partners. He graduated from Amherst College.

58

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mr. Meng Mei has served as an independent director of our company since March 2012. Mr. Mei is the chairman of compensation committee, and member of the
audit and corporate governance and nominating committees. Mr. Mei founded TusPark, a science park established by Tsinghua University in 1994, to incubate high
growth companies. He has been the director of TusPark’s development center since its inception. Mr. Mei is also the Chairman of TusHoldings Co., Ltd., which is
engaged in the development, construction, and management of TusPark and is providing services to enterprises based in TusPark. TusHoldings Co., Ltd. is also
involved in venture capital investments in China. Mr. Mei sits on the judging expert panel of China’s National Science & Technology Award. He has developed
courses on entrepreneurship and new venture formation as a Tsinghua University professor and an entrepreneur. Mr. Mei holds a bachelor’s degree in automation
from Tsinghua University, PRC.

Mr.  Shan  Fu  has  served  as  an  independent  director  since  July  2018,  when  he  was  appointed  as  a  director  by  the  PIPE  Investors  in  connection  with  the  PIPE
transaction  described  above.  Mr.  Fu  is  a  Managing  Partner  at  Vivo  Capital.  Vivo  Capital  is  a  healthcare  focused  investment  firm  formed  in  1996  with  over  $3
billion  under  management.  Prior  to  joining  Vivo  in  2013,  Mr.  Fu  was  Senior  Managing  Director  in  the  Private  Equity  group  and  the  Chief  Representative  of
Blackstone’s Beijing Office. Additionally, Mr. Fu’s qualifications include experience in the Department of Foreign Investment in China’s National Development
and Reform Commission, the State Economic and Trade Commission, the Office of Economic and Trade in State Council, and the Office of Production in State
Council. Mr. Fu is currently a director on the boards of 4 biopharma companies, 1 medical consumable company, and 1 healthcare service company.

Ms. Nan Wang has served as our chief financial officer since June 2013. Ms. Wang served as the vice president of Sinovac Beijing from 2001 and the board director
since 2009. Ms. Wang oversaw business development, investment and clinical research. Ms. Wang also served as the first general manager of Sinovac Dalian since
establishment of this company. During her 19 years of service, Ms. Wang was responsible for our business development, investment and clinical research. She has
been actively promoted our foreign cooperation, leading domestic and international cooperation negotiations on a number of projects including equity, technology
and market, and successfully achieving a number of foreign cooperation. Ms. Wang has led clinical research on many important projects including SARS vaccine
(phase I), inactivated H5N1 influenza (avian flu) vaccine, influenza, H1N1 influenza vaccine and EV71 vaccine (Vero Cell), inactivated, and has actively promoted
the listing of new products. Ms. Wang received her bachelor’s degree in biology from Peking University and her master’s degree from University of International
Business and Economics, PRC. Ms. Wang also received a diploma in financial management from Beijing College for Entrepreneurs, PRC in 2003.

Mr. Qiang Gao  has  served  as  our  chief  operating  officer  since  April  2020.  Mr.  Gao  joined  Sinovac  Beijing  in  2002  and  has  served  as  quality  control  manager,
quality assurance manager, R&D manager and R&D director at Sinovac Beijing in the past years, the general manager of Sinovac LS since 2010, and our vice
president since April 2016. Mr. Gao has participated in the development of several vaccine varieties, including influenza vaccine, SARS vaccine, inactivated H5N1
influenza  (avian  flu)  vaccine,  EV71  vaccine,  COVID-19  vaccine,  ongoing  sIPV  vaccine  and  declared  23-valent  pneumonia  vaccine.  Under  his  leadership,  we
successfully passed the WHO assessment and were selected to be eligible to import inactivated polio vaccine technology from the Netherlands and participate in
the global polio eradication project. This project makes China become one of only six developing countries eligible for the technology transfer. Mr. Gao is currently
a member of the Beijing Virus Society, Master of Engineering Supervisor of Institute of Microbiology (Chinese Academy of Sciences), and a subject review expert
of the Beijing Municipal Science and Technology Commission. Mr. Gao received a master’s degree and a bachelor’s degree in microbiology from the University of
Agriculture, PRC.

Ms. Jing Li has served as our vice president since April 2016. Ms. Li was named as quality person of Sinovac Beijing in March 2015. Since she joined Sinovac
Beijing in 2003, she has worked in different roles in production and quality function, including quality assurance vice manager, department manager of hepatitis A
vaccine production and director of vaccine production at Sinovac Beijing. Ms. Li has successively organized and completed the production and site inspection of
EV71  vaccine,  the  commercial  production  and  application  of  23-valent  pneumococcal  polysaccharide  vaccine.  As  the  project  leader,  she  organized  and  led  the
effort to pass WHO pre-certification assessment of hepatitis A vaccine, which significantly promoted the export sales of hepatitis A vaccine. Ms. Li received a
master’s degree in physiology from the University of Agriculture, PRC.

No family relationship exists among any of our directors or members of our executive officers named above and no arrangement or understanding exists between
any of our major shareholders, customers, suppliers or others, pursuant to which any person referred to above was selected as a director or executive officers.

B. Compensation

In 2020, the aggregate cash compensation paid to our directors and executive officers was approximately $8.3million.

We have not set aside or accrued any amount of cash to provide pension, retirement or other similar benefits to our officers and directors. Our PRC subsidiaries and
consolidated affiliated entities as well as their subsidiaries are required by law to make contributions equal to certain percentages of each employee’s salary for his
or her retirement benefits, medical insurance benefits, housing funds, unemployment and other statutory benefits.

59

 
 
 
 
INDEMNIFICATION AGREEMENTS

We  have  entered  into  indemnification  agreements  with  each  of  our  directors  and  executive  officers.  Under  these  agreements,  we  may  agree  to  indemnify  our
directors and executive officers against certain liabilities and expenses incurred by such persons in connection with claims made by reason of their being a director
or officer of our company.

EMPLOYMENT AGREEMENTS; NON-DISCLOSURE, NON-COMPETITION AND PROPRIETARY INFORMATION AGREEMENT

We have entered into employment agreements with each of our executive officers. Under these agreements, each of our executive officers is employed for a specified time
period. We may terminate the employment of any officers for cause, at any time, without notice or remuneration, for certain acts of such officer, such as conviction of or
plea of guilty to a felony or to an act of fraud, misappropriation or embezzlement, gross negligence or dishonest acts to our detriment, gross misconduct or a failure to
perform agreed duties, death or disability (physical or mental impairment). We may also terminate his or her employment without cause, at any time, upon a one month’s
written  notice.  Our  officers  may  terminate  their  employment,  at  any  time,  with  a  one-month  prior  written  notice  to  our  company  for  good  reason,  including  material
diminution in their authority, duties, responsibilities or cash compensation as detailed in their employment agreements, or in event of any action or inaction that constitutes a
material breach by our company under the employment agreement, in the manner set forth in their employment agreements. Upon termination of his or her employment
with us by our company without cause or by him or her for good reason, such executive officer is entitled to receive severance benefits including cash payment equal to the
amount set forth in his or her employment agreement. In addition, all the share options and restricted share award granted to him or her under our stock/share incentive
plans  will  become  fully  vested  on  the  employment  termination  date  and  such  share  options  will  remain  exercisable  for  eighteen  months  following  the  employment
termination date. In addition, each of our executive officer has entered into a non-disclosure, non-competition and proprietary information agreement and agreed to be
bound by non-competition and non-solicitation restrictions during the term of his or her employment and typically for one year and four years, respectively, following the
last date of employment.

The bonus plan of the executive officers is made based on our annual performance in different functions and the respective key result areas of these functional
teams.  Each  vice  president’s  bonus  is  determined  based  on  the  key  corporate  development  objectives  and  key  performance  index  set  by  the  compensation
committee and approved by the board at the beginning of the year. The bonus payoff plan is approved by the board.

Our shareholders have authorized the board of directors to administer two share incentive plans which in aggregate provide for the issuance of up to 9,000,000
shares of common stock, including 5,000,000 shares reserved under the 2003 Stock Option Plan and 4,000,000 shares reserved under 2012 Share Incentive Plan. As
of December 31, 2020, an aggregate of 42,800 shares, consisting 42,800 shares under the 2003 Stock Option Plan and no shares under the 2012 Share Incentive
Plans, are still available for any future grant of incentive awards under the two share incentive plans. The following tables summarize, as of December 31, 2020, the
outstanding options and regular shares that we granted to several of our directors, executive officers, principal shareholders and to other individuals as a group, all
of which were made under our 2012 Share Incentive Plan.

Weidong Yin
Simon Anderson
Yuk Lam Lo
Meng Mei
Kenneth Lee
Nan Wang
Xiaomei Yin
Qiang Gao
Jing Li
Others as a group
Subtotal

Weidong Yin
Nan Wang
Xiaomei Yin
Qiang Gao
Jing Li
Others as a group
Subtotal

Name

Number of
Options

120,000   
40,000   
40,000   
10,000   
40,000   
60,000   
—   
—   
—   
70,000   
380,000   

Exercise

Price($/Share)    
4.98   
4.98   
4.98   
4.98   
4.98   
4.98   
4.98   
4.98   
4.98   
4.98   
4.98   

Grant Date

May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 
May 1, 2015 

  Expiration Date
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023
April 30, 2023

Name

60

Restricted
Shares

160,000   
160,000   
120,000   
120,000   
120,000   
1,283,000   
1,963,000   

Grant Date

March 7, 2018
March 7, 2018
March 7, 2018
March 7, 2018
March 7, 2018
March 7, 2018
March 7, 2018

 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2003 STOCK OPTION PLAN

Our  board  of  directors  adopted  the  2003  Stock  Option  Plan  (the  “2003  Plan”)  on  November  1,  2003.  The  purpose  of  the  plan  is  to  attract  and  retain  the  best
available personnel for positions of substantial responsibility, provide additional incentive to employees, directors and consultants and promote the success of our
business. Our board of directors believes that our company’s long-term success depends on our ability to attract and retain superior individuals who, by virtue of
their ability, experience and qualifications, make important contributions to our business.

Set forth below is a summary of the principal terms of the 2003 Plan.

•

•

•

•

•

•

•

•

Size of plan. We have reserved an aggregate of 5,000,000 of our common shares for issuance under the 2003 Plan. As of December 31, 2020 an aggregate of
4,699,700 common shares have been issued pursuant to options issued under the 2003 Plan.

Administration. The 2003 Plan is administered by our board of directors. The board will determine the provisions, terms and conditions of each option grant,
including  without  limitation  the  option  vesting  schedule  or  exercise  installment,  the  option  exercise  price,  payment  contingencies  and  satisfaction  of  any
performance criteria.

Vesting schedule. The vesting schedules of options granted will be specified in the applicable option agreements.

Option  agreement.  Options  granted  under  the  2003  Plan  are  evidenced  by  option  agreements  that  contain,  among  other  things,  provisions  concerning
exercisability  and  forfeiture  upon  termination  of  employment  or  consulting  arrangements  by  reason  of  death  or  otherwise,  as  determined  by  our  board.  In
addition, the option agreement also provides no option shares will be issued under the plan unless the Securities Act has been fully complied with.

Option term. The term of options granted under the 2003 Plan may not exceed ten years from the date of grant.

Termination  of  options.  Where  the  option  agreement  permits  the  exercise  of  the  options  granted  for  a  certain  period  of  time  following  the  recipient’s
termination of services with us, the options will terminate to the extent any options are not exercised or purchased on the last day of the specified period or the
last day of the original term of the options, whichever occurs first.

Change  of  control.  If  a  third-party  acquires  us  through  the  purchase  of  all  or  substantially  all  of  our  assets,  a  merger  or  other  business  combination,  all
outstanding stock options will become fully vested and exercisable immediately prior to such transaction.

Termination of plans. Unless terminated earlier, the Plan will expire in 2023. Our board of directors has the authority to terminate the 2003 Plan prior to the
expiry of the plan provided that such early termination shall not affect the options then outstanding under the plan.

2012 SHARE INCENTIVE PLAN

In August 2012, our shareholders adopted a 2012 Share Incentive Plan, or the 2012 Plan. The maximum aggregate number of common shares which may be issued
pursuant  to  all  awards  under  the  2012  Plan  is  4,000,000  shares.  As  of  December  31,  2020,  3,073,700  common  shares  were  issued  under  the  2012  Plan.  The
following paragraphs describe the principal terms of the 2012 Plan.

Types of Awards

The types of awards we may grant under the plan include the options to purchase our common shares at a specified price and in a specified period determined by
our board. Under the 2012 Plan, we may also grant awards of our (1) restricted shares, (2) restricted share units, (3) dividend equivalents, (4) deferred shares, (5)
share payments and (6) share appreciation rights under the terms and conditions determined by our board of directors.

Eligibility

We may grant awards to the directors, officers, advisors and employees of us and our wholly owned subsidiaries and any entity which may thereafter be established.

Plan Administration

Our board of directors will administer the 2012 Plan. The board will determine the terms and conditions of each grant, including but not limited to, the exercise,
grant or purchase prices, any reload provision, any restrictions or limitations on the awards, vesting schedules, restrictions on the exercisability of the awards, any
accelerations or waivers, and any provision related to non-competition and recapture of gain on the awards.

61

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Award Agreement

Awards  granted  under  the  plan  will  be  evidenced  by  an  award  agreement  that  will  set  forth  the  terms,  conditions  and  limitations  for  each  award.  The  award
agreement should be signed by the employee and a director or an officer of us. Share awards may be evidenced by way of an issuance of certificates or book entries
with  appropriate  legends.  The  certificates  and  book  entry  procedures  may  be  subject  to  counsels’  advice,  stop-transfer  orders  or  other  conditions  or  restrictions
where the plan administrator deems necessary to comply with the required laws and regulations.

Vesting

The 2012 Plan provides that the administrator may set the period during which an option or a share appreciation right can be exercised and may determine that an
option  or  a  share  appreciation  right  may  not  be  exercised  for  a  specified  period  after  it  is  granted.  Such  vesting  can  be  based  on  criteria  selected  by  the
administrator.  At  any  time  after  the  grant  of  an  option  or  a  share  appreciation  right,  the  administrator  may,  in  its  sole  discretion  and  subject  to  the  terms  and
conditions  it  determines,  accelerate  the  period  during  which  an  option  or  a  share  appreciation  right  vests.  No  portion  of  an  option  or  a  share  appreciation  right
exercisable  at  the  termination  of  service  of  an  option  or  a  share  appreciation  right  holder  with  our  company  or  subsidiaries  can  become  exercisable  afterwards,
unless otherwise provided by the administrator.

Exercise Price and Term of Awards

The exercise price per share of options granted under the 2012 Plan is determined by the plan administrator in the award agreement. The price may be fixed or
variable  related  to  the  fair  market  value  of  our  ordinary  shares.  The  term  of  any  option  granted  should  not  exceed  ten  years.  However,  in  the  case  where  our
incentive option is granted to an individual who, at the date of grant, owns more than ten percent of the total voting power of all classes of our shares, the price
granted shall not be less than 110% of the fair market value on the date of grant and the option is exercisable for no more than five years from the date of grant.

For common share awards granted under the 2012 Plan, namely (1) restricted shares, (2) restricted share units, (3) dividend equivalents, (4) deferred shares, and (5)
share payments, the consideration shall not be less than the par value of the shares purchased. The terms of the share awards are set by the plan administrator in its
sole discretion.

The exercise price of share appreciation right under the 2012 Plan is determined by the plan administrator and set forth in the award agreement which may be a
fixed or variable price related to the fair market value of the shares. The term of the share appreciation right will not exceed ten years.

The approval of shareholders is required for downward adjustment of the exercise prices of options or share appreciation rights. A downward adjustment of the
exercise prices of options or share appreciation rights means (i) lowering the exercise price of outstanding options or share appreciation rights, or (ii) cancelling
outstanding options or share appreciation rights in exchange for cash, other awards, or options or share appreciation rights with an exercise price that is less than the
exercise price of the original options or share appreciation rights.

Transfer Restrictions

The awards granted under the 2012 Plan may not be sold, pledged, assigned or transferred other than by will or the laws of descent and distribution or, subject to
the consent of the plan administrator, as required under the applicable laws.

Amendments or Termination

The 2012 Plan provides that in the event of any changes affecting our common shares or our share price, the plan administrator can make proportional and equitable
adjustments  to  reflect  such  changes.  Upon  or  in  anticipation  of  a  corporate  transaction,  including  acquisition,  disposal  of  substantially  all  or  all  assets,  reverse
takeover, dissolution, the plan administrator should in its discretion provide for replacement or assumption of such award. In the event of other changes, the board
of directors should in its discretion make adjustments in the number and class of shares subject to awards outstanding on the date of such change to prevent dilution
or enlargement of rights. The 2012 Plan will expire and no further awards may be granted after the tenth anniversary of the date the plan was adopted.

C. Board Practices

Board of Directors

Our Articles of Incorporation prescribe that we should have a minimum of one and a maximum of 15 directors. Currently, our board of directors comprises six
board members, five of whom are independent. A director is not required to hold any shares in the company by way of qualification. A director may vote with
respect to any contract, proposed contract or arrangement in which he is materially interested provided that such director must disclose his interest in the contract or
arrangement. There is no age limit requirement for directors. Under Antigua law, our directors have a duty of loyalty to act honestly, in good faith and with a view
to our best interests. Our directors also have a duty to exercise the skill they actually possess and such care and diligence that a reasonably prudent person would
exercise in comparable circumstances. In fulfilling their duty of care to us, our directors must ensure compliance with our Articles of Incorporation and By-laws, as
amended and re-stated from time to time. A shareholder has the right to seek damages if a duty owed by our directors is breached.

62

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The functions and powers of our board of directors include, among others:

•

•

•

•

•

convening shareholders’ annual general meetings and reporting its work to shareholders at such meetings;

declaring dividends and distributions;

appointing officers and determining the term of office of officers;

exercising the borrowing powers of our company and mortgaging the property of our company; and

approving the transfer of shares of our company, including the registering of such shares in our share register.

As described above, on March 5, 2018, we announced the re-election of the members of our board of directors—Mr. Weidong Yin, Mr. Yuk Lam Lo, Mr. Simon
Anderson, Mr. Kenneth Lee, and Mr. Meng Mei—at the 2017 AGM. We also announced that we had determined, after consultation with our Antigua legal counsel,
that an alternative, pre-printed ballot not made available to all our shareholders and purportedly submitted at our 2017 AGM by the Shareholder Group was invalid.
On March 13, 2018, 1Globe filed a complaint against our company in the Antigua Court to dispute the results of the election. See “Item 8. Financial Information —
A. Consolidated Statements and Other Financial Information — Legal and Administrative Proceedings” for additional information. In July 2018, Mr. Shan Fu was
appointed to our board of directors in connection with the PIPE transaction.

Terms of Directors and Executive Officers

Our officers are elected by and serve at the discretion of the board of directors. Our directors are not subject to a term of office and hold office until a successor is
elected at the next annual shareholders’ meeting. A director will be removed from office automatically if, among other things, the director (i) becomes bankrupt or
makes any arrangement or composition with his creditors or (ii) dies or is found by our company to be or becomes of unsound mind. None of our directors has a
service contract with us or any of our subsidiaries providing for benefits upon termination of employment.

Committees of the Board of Directors

Our board of directors has established an audit committee, a compensation committee and a corporate governance and nominating committee.

Audit Committee

Our audit committee consists of Messrs. Simon Anderson, Yuk Lam Lo and Meng Mei, and is chaired by Simon Anderson, all of whom satisfy the “independence”
requirements  of  Rule  5605  of  the  NASDAQ  Listing  Rules  and  Rule  10A-3  under  the  Securities  Exchange  Act  of  1934.  The  audit  committee  oversees  our
accounting and financial reporting processes and the audits of the financial statements of our company. The audit committee is responsible for, among other things:

•

•

•

•

•

•

•

•

•

selecting our independent auditors and pre-approving all auditing and non-auditing services permitted to be performed by our independent auditors;

reviewing with our independent auditors any audit problems or difficulties and management’s response;

reviewing and approving all proposed related party transactions, as defined in Item 404 of Regulation S-K under the Securities Act;

discussing the annual audited financial statements with management and our independent auditors;

reviewing major issues as to the adequacy of our internal controls and any special audit steps adopted in light of material control deficiencies;

annually reviewing and reassessing the adequacy of our audit committee charter;

such other matters that are specifically delegated to our audit committee by our board of directors from time to time;

meeting separately and periodically with management and our internal and independent auditors; and

reporting regularly to the full board of directors.

In 2020, our audit committee held meetings or passed resolutions by unanimous written consent five times.

63

 
 
 
 
 
 
 
 
 
 
 
 
 
Compensation Committee

Our  compensation  committee  consists  of  Messrs.  Meng  Mei,  Simon  Anderson,  Yuk  Lam  Lo,  and  Kenneth  Lee,  and  is  chaired  by  Mr.  Meng  Mei,  all  of  whom
satisfy  the  “independence”  requirements  of  Rule  5605  of  the  NASDAQ  Listing  Rules  and  Rule  10C-1  under  the  Securities  Exchange  Act  of  1934.  Our
compensation committee assists the board in reviewing and approving the compensation structure of our directors and executive officers, including all forms of
compensation  to  be  provided  to  our  directors  and  executive  officers.  Members  of  the  compensation  committee  are  not  prohibited  from  direct  involvement  in
determining their own compensation. Our chief executive officer may not be present at any committee meeting during which his compensation is deliberated. The
compensation committee is responsible for, among other things:

•

•

•

•

approving and overseeing the compensation package for our executive officers;

reviewing and making recommendations to the board with respect to the compensation of our directors;

reviewing and approving corporate goals and objectives relevant to the compensation of our chief executive officer, evaluating the performance of our chief
executive officer in light of those goals and objectives, and setting the compensation level of our chief executive officer based on this evaluation; and

reviewing  periodically  and  making  recommendations  to  the  board  regarding  any  long-term  incentive  compensation  or  equity  plans,  programs  or  similar
arrangements, annual bonuses, employee pension and welfare benefit plans.

In 2020, our compensation committee held meetings or passed resolutions by unanimous written consent three times.

Corporate Governance and Nominating Committee

Our corporate governance and nominating committee consists of Messrs. Yuk Lam Lo, Simon Anderson, Kenneth Lee and Meng Mei, and is chaired by Mr. Yuk Lam
Lo, all of whom satisfy the “independence” requirements of Rule 5605 of the NASDAQ Listing Rules. The corporate governance and nominating committee assists the
board  of  directors  in  identifying  individuals  qualified  to  become  our  directors  and  in  determining  the  composition  of  the  board  and  its  committees.  The  corporate
governance and nominating committee is responsible for, among other things:

•

•

•

•

•

identifying and recommending to the board nominees for election or re-election to the board, or for appointment to fill any vacancy;

reviewing annually with the board the current composition of the board in light of the characteristics of independence, age, skills, experience and availability
of service to us;

identifying and recommending to the board the directors to serve as members of the board’s committees;

advising  the  board  periodically  with  respect  to  significant  developments  in  the  law  and  practice  of  corporate  governance  as  well  as  our  compliance  with
applicable laws and regulations and making recommendations to the board on all matters of corporate governance and on any corrective action to be taken;
and

monitoring compliance with our code of business conduct and ethics, including reviewing the adequacy and effectiveness of our procedures to ensure proper
compliance.

In 2020, our corporate governance and nominating committee held meetings or passed resolutions by unanimous written consent three times.

Interested Transactions

A director may vote in respect of any contract or transaction in which he or she is interested, provided that the nature of the interest of any directors in such contract
or transaction is disclosed by him or her at or prior to its consideration and any vote in that matter.

Remuneration and Borrowing

The  directors  may  determine  remuneration  to  be  paid  to  the  directors.  The  compensation  committee  assists  the  directors  in  reviewing  and  approving  the
compensation  structure  for  the  directors.  The  directors  may  exercise  all  our  powers  to  borrow  money  and  to  mortgage  or  charge  its  undertaking,  property  and
uncalled capital, and to issue debentures or other securities whether outright or as security for any debt obligations of our company or of any third party.

64

 
 
 
 
 
 
 
 
 
 
 
 
 
 
D. Employees

As of December 31, 2020, 2019 and 2018, we had 1,959, 910 and 735 full-time employees, respectively. Of our workforce as of December 31, 2020, about 190
employees are primarily engaged in research and development, 93 employees are engaged in sales and marketing, 1,497 employees in production related and 179
employees in administration. As of December 31, 2020, we have a total of 253 temporary employees. We consider our relationship with our employees to be good.

E.

Share Ownership

The following table sets forth information with respect to the beneficial ownership of our common shares, as of March 31, 2021, by:

•

•

each of our directors and executive officers; and

each person/organization known to us to own beneficially more than 5% of our common shares.

The  calculations  in  the  table  below  are  based  on  71,517,402  common  shares  outstanding  as  of  March  31,  2021  before  taking  into  account  the  issuance  of  the
Exchange  Shares  in  the  Exchange  and  113,925,556  shares,  including  99,294,743  common  shares  and  14,630,813  Series  B  Preferred  Shares,  after  taking  into
account  the  issuance  of  the  Exchange  Shares  in  the  Exchange.  Beneficial  ownership  is  determined  in  accordance  with  the  rules  and  regulations  of  the  SEC.  In
computing the number of shares beneficially owned by a person and the percentage ownership of that person, we have included shares that the person has the right
to acquire within 60 days, including through the exercise of any option, warrant or other right or the conversion of any other security. These shares, however, are
not included in the computation of the percentage ownership of any other person. Additionally, for purposes of this item, share counts and calculations in the table
below do not reflect the issuance of the Exchange Shares into the Shareholder 2019 Rights Exchange Trust in connection with the Exchange.

Directors and Executive Officers:
Weidong Yin
Simon Anderson
Yuk Lam Lo
Meng Mei
Kenneth Lee
Shan Fu
Nan Wang
Ming Xia
Xiaomei Yin
Qiang Gao
Jing Li
All directors and executive officers as a group
Principal Shareholders
SAIF Partners IV(1)
Prime Success, L.P.(2)
Vivo Capital(3)
CDH Utopia Limited(4)
1Globe Capital LLC(5)
Total share outstanding

before issuance of the
Exchange Shares

Number

%

after issuance of the
Exchange Shares

Number

%

6,359,500  
*  
*  
*  
*  
—  
*  
*  
*  
*  
*  
7,536,847  

10,780,820  
5,900,000  
5,900,000  
6,000,000  
3,353,092  
71,517,402  

8.89  
*  
*  
*  
*  
—  
*  
*  
*  
*  
*  
10.54  

15.07%  
8.25%  
8.25%  
8.39%  
4.69%  
100.00% 

12,569,000 
*  
*  
*  
*  
—  
*  
*  
*  
*  
*  
14,599,714  

21,561,640  
11,800,000  
11,800,000  
6,000,000  
3,353,092  
113,925,556 

11.03 
* 
* 
* 
* 
— 
* 
* 
* 
* 
* 
12.82 

18.93% 
10.36% 
10.36% 
5.27% 
2.94% 
100.00% 

Less than 1% of our common shares.

*
(1) According  to  the  Amendment  No.  6  to  Schedule  13D  filed  with  the  SEC  on  June  27,  2017  by  SAIF  Partners  IV  L.P.,  SAIF  IV  GP,  L.P.  and  SAIF  IV  GP

Capital Ltd.

(2) According to the Schedule 13G filed with the SEC on July 10, 2018 by Prime Success, L.P., Green Vision Partners Limited and Advantech Capital Partners

Ltd.

(3) According to the Amendment No. 2 to Schedule 13D filed with the SEC on August 27, 2018 by Vivo Capital, LLC, Vivo Capital VIII, LLC and Vivo Capital

IX, LLC.

(4) According to the Schedule 13D filed with the SEC on December 22, 2020 by CDH Utopia Limited, CDH Fund VI, L.P., CDH VI Holdings Company Limited

and CDH Griffin Holdings Company Limited.

(5) According to the Schedule 13D filed with the SEC on July 7, 2017, the Amendment No. 1 to the Schedule 13D filed with the SEC on March 23, 2018 and the

Amendment No. 2 filed with the SEC and the Amendment No. 3 filed with the SEC on December 22, 2020 by 1Globe Capital LLC.

65

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
None of our existing shareholders has different voting rights from other shareholders. Holders of our Series B Preferred Shares vote together with the common
shares on an as-converted basis on all matters presented to the shareholders for a vote, subject to applicable law. Except for the complaint against filed by 1Globe
against Sinovac Antigua in the Antigua Court, as disclosed in “Item 8. Financial Information — A. Consolidated Statements and Other Financial Information —
Legal and Administrative Proceedings” or elsewhere in this annual report, we are not aware of any arrangement that may, at a subsequent date, result in a change of
control of our company.

As of December 31, 2018, 71,139,402 of our common shares were issued and outstanding. On February 22, 2019, 27,777,341 of Sinovac Antigua’s common shares
and 14,630,813 of Sinovac Antigua’s Series B preferred shares were issued into the Shareholder 2019 Rights Exchange Trust in connection with the Exchange. As
described below under “Item 8. Financial Information — A. Consolidated Statements and Other Financial Information — Legal and Administrative Proceedings”,
courts  in  Antigua  and  Delaware  have  enjoined  the  Company  from  issuing  Exchange  Shares  from  the  Trust  until  final  resolution  of  such  matters.  Taking  into
account issuance of the Exchange Shares, immediately following such issuance, 98,918,243 of common shares and 14,630,813 of Series B Preferred Shares were
issued  and  outstanding.  As  of  December  31,  2020,  99,294,743  of  common  shares  and  14,630,813  of  Series  B  Preferred  Shares  were  issued  and  outstanding.
Approximately 89% of the aggregate total of common shares and Series B Preferred Shares issued and outstanding were held by the record shareholders in the
United States.

To our knowledge, except as disclosed elsewhere in this annual report, we are not directly or indirectly owned or controlled by another corporation, any foreign
government or any other natural or legal person, severally or jointly.

For the options granted to our directors, officers and employees, please refer to “— B. Compensation.”

ITEM 7. MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS

A. Major Shareholders

Please refer to “Item 6. Directors, Senior Management and Employees — E. Share Ownership.”

B. Related Party Transactions

Transaction with Yuk Lam Lo

Sinovac Hong Kong is using part of the office of Mr. Yuk Lam Lo, one of our independent directors, as its office. We do not pay any rent to Mr. Lo and only pay
our share of the utilities and property management fees, which totaled $3,998, $10,267 and nil in 2020, 2019 and 2018, respectively.

Transactions with Certain Directors and Affiliates

We entered into two operating lease agreements with SinoBioway, the non-controlling shareholder of Sinovac Beijing, with respect to Sinovac Beijing’s production
plant and laboratory in Beijing, China with annual lease payments totaling RMB 1.4 million ($0.2 million). The leases commenced on August 12, 2004 and have a
term of 20 years. One of the lease agreements was amended on August 12, 2010 with the rent increasing from RMB 0.5 million ($76,628) to RMB 1.4 million ($0.2
million) per year.

In June 2007, we entered into another operating lease agreement with SinoBioway, with respect to the expansion of Sinovac Beijing’s production plant in Beijing,
China, for an annual lease payment of RMB2.0 million ($0.3 million). The lease commenced in June 2007 and has a term of 20 years.

In  September  2010,  we  entered  into  another  operating  lease  agreement  with  SinoBioway  with  respect  to  expansion  of  Sinovac  LS’  business  in  research  and
development activities for an annual lease payment of RMB 1.0 million ($0.1 million). The lease commenced on September 30, 2010 and has an initial term of five
years.

On April 8, 2013, we entered into four supplemental agreements with SinoBioway, under which the expiration date of all operating lease agreements was extended
to April 7, 2033.

In 2019, we entered into an operating lease agreement with Dalian Jin Gang Group, the non-controlling shareholder of Sinovac Dalian, to rent refrigeration storage
with the space of 2,000 sq.m. with an annual rent amounted RMB0.3 million ($49,000). The lease commenced on January 1, 2019 and had a term of five years. On
June 30, 2019, the lease agreement was amended. The term of the lease was changed to from July 1, 2019 to December 31, 2024, and the annual rent was changed
to  RMB0.2  million  ($22,000)  as  the  space  of  the  leased  refrigeration  storage  was  reduced  to  1,000  sq.m.  In  2019,  we  also  entered  into  a  management  service
agreement  with  Dalian  Jin  Gang  Group,  pursuant  to  which  it  provided  us  with  management  service  related  to  the  operating  lease  agreement  with  an  annual
management service fee of RMB100,000 ($14,000). The management service agreement was amended on June 30, 2019, and the annual management service fee
was changed to RMB44,000 ($6,000).

66

 
 
 
Loan from a non-controlling shareholder

We have four loans due to Dalian Jin Gang Group, the non-controlling shareholder of Sinovac Dalian, with a total amount of RMB 80 million ($12.3 million), of
which two loans totalling RMB 40 million ($6.1 million) were borrowed in August 2020 and are repayable on August 18, 2021. RMB 10 million ($1.5 million) was
borrowed in September 2019 and is repayable on September 19, 2022. RMB 30 million ($4.6 million) was borrowed in August 2020 and is repayable on August 9,
2023. These four loans are unsecured, bearing interest at 6.5% per year and payable monthly.

Share Options

See  “Item  6.  Directors,  Senior  Management  and  Employees  —  B.  Compensation  —  2003  Stock  Option  Plan”  and  “Item  6.  Directors,  Senior  Management  and
Employees — B. Compensation — 2012 Share Incentive Plan.”

Indemnification Agreements

“Item 6. Directors, Senior Management and Employees — B. Compensation — Indemnification Agreements.”

Employment Agreements; Non-Disclosure, Non-Competition and Proprietary Information Agreement

“Item  6.  Directors,  Senior  Management  and  Employees  —  B.  Compensation  —  Employment  Agreements;  Non-Disclosure,  Non-Competition  and  Proprietary
Information Agreement.”

C.

Interests of Experts and Counsel

Not applicable.

ITEM 8. FINANCIAL INFORMATION

A. Consolidated Statements and Other Financial Information

We have appended consolidated financial statements filed as part of this annual report.

Legal and Administrative Proceedings

We may be subject to legal proceedings, investigations and claims relating to the conduct of our business from time to time.

DOJ and SEC Investigations and NASDAQ Inquiry

The Beijing People’s Court issued five judgments in 2016 and 2017. These judgments were related to corrupt conduct allegedly engaged in by a former official of
the  Center  for  Drug  Evaluation  in  NMPA,  his  wife  and  his  son.  These  judgments  found  that  the  official  and  his  wife  had  engaged  in  a  practice  of  improperly
soliciting and accepting payments from various individuals involved in the vaccine products industry. According to the judgments, one of the individuals solicited
by  the  official  was  Mr.  Weidong  Yin,  our  chairman,  president  and  chief  executive  officer.  It  was  asserted  in  the  judgments  that  Mr.  Weidong  Yin  made  three
payments, and arranged for a loan, to the official and his wife, in the total amount of RMB550,000 ($77,000) between 2002 and 2011. Mr. Weidong Yin was not
charged  with  any  offense  or  improper  conduct  and  he  cooperated  as  a  witness  with  the  procuratorate.  To  our  knowledge,  the  Chinese  authorities  have  not
commenced any legal proceedings or government inquiries against Mr. Yin. In December 2016, our audit committee authorized the commencement of an internal
investigation  into  the  allegations  made  in  the  judgments.  The  audit  committee  engaged  Latham  &  Watkins  LLP  as  independent  counsel  to  assist  with  the
investigation.

In 2017 and 2018, we became aware of certain judgments based on bribery charges issued by Chinese courts in four provinces against various officials of the CDC.
While these judgments appear to reflect an industry-wide investigation focused on CDC officials, they also referenced nine of our former salespersons, together
with  sales  personnel  from  several  other  Chinese  vaccine  companies  and  distributors.  These  judgments  did  not  name,  and  no  charges  were  brought  against,  our
company or any of our directors or officers as defendants. To the best of our knowledge, the nine referenced employees cooperated with the procuratorate. The
procuratorate  did  not  contact  us  for  cooperation.  Upon  becoming  aware  of  these  judgments,  our  Audit  Committee  expanded  its  internal  investigation  to  review
matters related to these judgments and our sales practices and policies, and further engaged Latham & Watkins LLP to continue the independent investigation with
the expanded scope. One of the nine former sales employees has been convicted for giving bribes. The judgment states that this former sales employee took these
actions without knowledge of our company. His criminal penalty was waived by the court.

After we publicly announced the internal investigation arising from the allegations in a research report in December 2016, we were notified by the SEC in February
2017 of an enforcement inquiry related to the matters discussed in the report, and in April 2017 we received a subpoena from the SEC requesting documents. In
September  2017,  we  received  an  inquiry  from  the  DOJ  and  we  have  been  cooperating  with  the  DOJ.  The  SEC  and  DOJ  requested  information  regarding  the
judgments discussed above, and we cooperated with these requests.

67

 
 
 
 
Also in February 2017, we received an inquiry from NASDAQ related to the same matter. Further, in May 2018, we received an inquiry from NASDAQ requesting
information related to the actions by Sinobioway Medicine and their impact on our operations and financial reporting. We cooperated with both of these NASDAQ
inquiries.

On August 14, 2018, the SEC notified us that the SEC had concluded its investigation and would not recommend an enforcement action against us at this time. On
September 12, 2018, the DOJ notified us that it had closed its investigation, with no charges. With the closure of the DOJ’s investigation, we are not aware of any
pending U.S. government investigations of us related to these matters. 

US Litigation

Delaware Chancery Court Action

On March 5, 2018, we filed a lawsuit in the Court of Chancery of the State of Delaware seeking a determination whether 1Globe, The Chiang Li Family, OrbiMed
and  other  shareholders  of  Sinovac  Biotech  Ltd.  had  triggered  the  Rights  Agreement  by  forming  a  group  holding  approximately  45%  of  outstanding  shares  of
Sinovac Biotech Ltd., in excess of the plan’s threshold of 15%, and acting in concert prior to the 2017 AGM. The Rights Agreement is intended to promote the fair
and equal treatment of all Sinovac shareholders and ensure that no person or group can gain control of Sinovac through undisclosed voting arrangements, open
market accumulation or other tactics potentially disadvantaging the interest of all shareholders.

On April 12, 2018, 1Globe filed an amended answer to Sinovac Antigua’s complaint, counterclaims, and a third-party complaint against Mr. Weidong Yin alleging,
among other allegations, that the Rights Agreement is not valid, that Mr. Weidong Yin and the Buyer Consortium had previously triggered the Rights Agreement,
and that 1Globe did not trigger the Rights Agreement. Sinovac Antigua and its board of directors believes that the actions taken by the board of directors were
appropriate under the circumstances and that the allegations of the counterclaims and third-party complaint are without merit. 1Globe asks for various measures of
equitable relief and also includes a claim for its costs, including attorneys’ fees.

On July 31, 2018, following Sinovac Antigua motions for partial summary judgment and an expedited trial date, the Delaware Chancery Court effectively stayed
the  action  pending  receipt  of  a  post-trial  decision  from  the  Antigua  Court  in  the  matter  captioned  1Globe  Capital,  LLC  and  Sinovac  Biotech  Ltd.,  Claim  No.
ANUHCV 2018/0120. On December 19, 2018, the Antigua Court issued a judgment affirming the validity of Sinovac Antigua’s Rights Agreement under Antigua
law, and finding that “there was a secret plan to take control” of Sinovac Antigua at the 2017 AGM.

Based upon the Antigua Court’s judgment and other facts known to the board of directors, our board of directors determined that the Collaborating Shareholders
became Acquiring Persons on or prior to the 2017 AGM and their conduct resulted in a Trigger Event under Sinovac Antigua’s Rights Agreement. As a result of
becoming  Acquiring  Persons,  the  approximately  28.7  million  Rights  held  by  the  Collaborating  Shareholders  automatically  became  void  under  the  terms  of  the
Rights Agreement. Pursuant to the Rights Agreement, our board of directors elected to exchange the approximately 42.4 million valid and outstanding Rights held
by  Sinovac  Antigua’s  shareholders  (not  including  the  Collaborating  Shareholders)  for  a  combination  of  approximately  27.8  million  common  shares  and
approximately 14.6 million Series B preferred shares, all of which Sinovac Antigua issued into a trust on February 22, 2019 for the benefit of the holders of the
valid and outstanding Rights. See “History and Development of the Company” for additional information.

On March 6, 2019, the Delaware Chancery Court entered a status quo order providing that Sinovac Antigua not distribute any of the Exchange Shares to rights
holders until the final disposition of the pending Delaware litigation or further order of the Court. On April 4, 2019, the Eastern Caribbean Supreme Court, Court of
Appeal issued an order that restrains Sinovac Antigua from taking further action under its Rights Agreement, including the distribution of the previously issued
Exchange Shares to the holders of valid Rights, until the conclusion of 1Globe Capital, LLC’s appeal of the December 19, 2018 Judgment of the Antigua Court. On
April 8, 2019, the Delaware Chancery Court stayed the Delaware litigation pending the outcome of 1Globe’s appeal of the Antigua Judgment. We cannot predict
whether an ultimate outcome will be favorable or unfavorable, nor estimate the amount or range of potential loss (if any) at this time.

Massachusetts District Court Actions

On March 5, 2018, Sinovac Antigua also filed a lawsuit in the United States District Court for Massachusetts alleging violations of Section 13(d) of the Securities
Exchange  Act  of  1934  by  1Globe  and  The  Chiang  Li  Family.  The  lawsuit  alleges,  among  other  things,  that  the  defendant  shareholders  failed  to  make  required
disclosures on Schedule 13D regarding their intentions to attempt to replace Sinovac Antigua’s board of directors.

On April 9, 2018, we received a document request from the SEC requesting all of our documents concerning 1Globe, the Chiang Li Family, OrbiMed, certain other
shareholders,  and  their  affiliates.  We  have  been  cooperating  with  the  SEC.  We  understand  the  SEC  is  investigating  whether  1Globe,  and  possibly  other
shareholders, violated the U.S. securities laws. We do not have any information to suggest the SEC is investigating the actions of Sinovac Antigua or its officers
and directors.

68

 
 
On  May  21,  2018,  1Globe  answered  and  filed  counterclaims  against  Sinovac  Antigua  and  certain  of  its  executives,  alleging  violations  of  Section  10(b)  of  the
Exchange Act and various state law claims. In response to Sinovac Antigua motion to dismiss 1Globe’s counterclaims, on August 1, 2018, 1Globe filed amended
counterclaims against Sinovac Antigua and certain of its executives, alleging violations of Section 10(b) of the Exchange Act and Rule 10b-5, as well as state law
claims of abuse of process, fraudulent misrepresentation, negligent misrepresentation, and aiding and abetting such violations, primarily arising out of allegedly
false and/or misleading statements made by us regarding our business, operational, and financial results.

On August 17, 2018, the Massachusetts Court granted a consent motion to extend the deadline for Sinovac Antigua’s response to 1Globe’s counterclaims (and for
any subsequent opposition by 1Globe) until after the Antigua Court issued a ruling in the matter captioned 1Globe Capital, LLC and Sinovac Biotech Ltd., Claim
No.  ANUHCV  2018/0120.  On  December  19,  2018,  the  Antigua  Court  issued  a  judgment,  which  1Globe  appealed  on  January  29,  2019.  Per  the  Massachusetts
Court’s order, the parties have filed periodic status reports regarding the pending court proceedings in Antigua. No date for Sinovac Antigua’s response to 1Globe’s
counterclaims has been set. We are vigorously pursuing this lawsuit; however, we cannot predict whether an ultimate outcome will be favorable or unfavorable, nor
estimate the amount or range of potential loss (if any) at this time.

Also  on  August  1,  2018,  1Globe  filed  a  motion  for  preliminary  injunction  seeking  to  enjoin  Sinovac  Antigua  from,  inter  alia,  altering  its  capital  structure.  On
October 15, 2018, the Massachusetts Court denied 1Globe’s motion. On November 14, 2018, 1Globe filed an appeal of the denial of its motion for preliminary
injunction  to  the  United  States  Court  of  Appeals  for  the  First  Circuit.  On  January  10,  2019,  1Globe  filed  a  motion  to  hold  its  appeal  in  abeyance  pending  the
outcome of its separate appeal of the Antigua Court’s judgment, which Sinovac Antigua opposed. In October 2019, 1Globe voluntarily dismissed the appeal.

Separately, Heng Ren Investments LP (“Heng Ren”) filed suit against Sinovac Antigua and Weidong Yin for alleged breach of fiduciary duties and wrongful equity
dilution on May 31, 2019, in Massachusetts state court. Sinovac Antigua removed the matter from state court to the United States District Court for the District of
Massachusetts.  Heng  Ren  alleged  that  Mr.  Yin  breached  fiduciary  duties  owed  to  minority  shareholders,  that  Sinovac  Antigua  aided  and  abetted  breaches  of
fiduciary duties, and that both Sinovac Antigua and Mr. Yin engaged in wrongful equity dilution. Heng Ren requested damages, attorneys’ fees, and prejudgment
interest. On September 14, 2020, Sinovac Antigua filed a motion to dismiss Heng Ren’s claims and the court’s decision on that motion is pending as of the date of
this annual report.

Antigua Litigation

On March 13, 2018, 1Globe filed a complaint against Sinovac Antigua in the Antigua Court. The complaint seeks a declaration that the five persons purportedly
proposed on the Non-Public Submission at the 2017 AGM were elected as directors of Sinovac Antigua at that meeting, an order of the Antigua Court that those
directors be installed as Sinovac Antigua’s board of directors, and a declaration that any actions taken on behalf of Sinovac Antigua at the direction of the board of
directors since the 2017 AGM are null and void. On April 10, 2018, 1Globe filed a notice of application in the Antigua Court seeking an order declaring the result
of the disputed election, an urgent order restraining Sinovac Antigua’s board of directors from acting, pending determination of the dispute, including acting to
initiate or continue litigation against the Shareholder Group, and other related relief. We attended the first hearing on May 9, 2018. In July 2018, the Antigua court
heard an application by 1Globe for interim injunctive relief preventing Sinovac Antigua from exercising its rights under the Rights Agreement. This application
was unsuccessful, but the judge set an expedited timetable to trial. The trial of the matter took place from December 3 to 5, 2018. On December 19, 2018, the judge
handed down his judgment, finding in Sinovac Antigua’s favor in full, dismissing 1Globe’s claim and declaring that the Rights Agreement was validly adopted as a
matter of Antigua law. On January 29, 2019, 1Globe filed a Notice of Appeal. On March 4, 2019, 1Globe filed an application for urgent interim relief, seeking an
injunction to prevent Sinovac Antigua from continuing to implement its Rights Agreement until the resolution of the appeal. This urgent interim relief application
was heard on April 4, 2019, at which the Court of Appeal made an order restraining Sinovac Antigua in similar terms to the Delaware Court order of March 6,
2019,  together  with  restraint  from  operating  the  Rights  Agreement  in  any  way  that  affects  1Globe’s  rights  or  shareholding  until  determination  of  the  appeal.
1Globe’s appeal of the Antigua Court’s Judgment was heard on September 18, 2019, and the appeal decision is pending as of the date of this annual report. We
cannot predict or estimate an outcome or economic burden for this case at this time.

Hong Kong Litigation

On  October  8,  2018,  Sinovac  became  aware  that  unauthorized  documents  in  respect  of  Sinovac  Hong  Kong  had  been  unlawfully  filed  with  the  Hong  Kong
Companies Registry to change the directors of Sinovac Hong Kong from Mr. Weidong Yin and Ms. Nan Wang to Mr. Jianzeng Cao and Mr. Pengfei Li. On October
15, 2018, Mr. Yin and Ms. Nan Wang commenced proceedings HCMP 1731/2018 before the Hong Kong High Court.

In a hearing before the Hong Kong High Court on October 19 2018, the Lawful Directors asked the court to grant an urgent interim injunction order to restrain Mr.
Li and Mr. Cao from taking further unlawful actions against Sinovac HK and its subsidiaries. At the hearing, the judge granted an interlocutory injunction in the
same  terms  sought  by  the  Lawful  Directors  restraining  Mr.  Pengfei  Li  and  Mr.  Jianzeng  Cao  from  purporting  to  act  or  holding  themselves  out  as  directors  of
Sinovac Hong Kong or its subsidiaries, purporting to take any actions as directors of Sinovac Hong Kong or its subsidiaries, and relying on or using the forged
documents in any way whatsoever.

On November 28, 2018 at a further hearing in the Hong Kong High Court, the Hong Kong High Court made the November 28 Order and held that it is beyond
dispute that the documents in respect of Sinovac Hong Kong had been forged and unlawfully filed with the Hong Kong Companies Registry, based on the evidence
filed by Mr. Cao, Mr. Li and the Lawful Directors. The Hong Kong High Court therefore declared

69

 
that Mr. Yin and Ms. Wang were and still are the lawful directors of Sinovac Hong Kong, and Mr. Li and Mr. Cao were not and are not the lawful directors of
Sinovac Hong Kong. The Hong Kong High Court also granted a permanent injunction restraining Mr. Li and Mr. Cao from purporting to act or holding themselves
out as directors of Sinovac Hong Kong or its subsidiaries (including but not limited to Sinovac Beijing), purporting to take any actions as directors of Sinovac Hong
Kong  or  its  subsidiaries,  and  relying  on  or  using  the  forged  documents  in  any  way  whatsoever.  Furthermore,  the  Hong  Kong  High  Court  also  ordered  the
Companies Registry to remove the forged documents in respect of Sinovac Hong Kong that had been unlawfully filed.

On November 28, 2018, Mr. Cao and Mr. Li filed a Notice of Appeal with the Hong Kong Court of Appeal, indicating their intention to appeal the orders made by
the Hong Kong High Court. No hearing date has yet been fixed to hear the appeal. Mr. Yin and Ms. Wang intends to vigorously contest the appeal filed by Mr. Cao
and Mr. Li. Pending the determination of the appeal, the November 28 Order remains effective and enforceable. Pursuant to the November 28 Order, the Hong
Kong Companies Registry has removed the purported Sinovac Hong Kong documents from the Companies Register and updated Sinovac Hong Kong’s register of
director such that the directors on record are Mr. Yin, Ms. Wang and Mr. Yuk Lam Lo.

As of the date of this annual report, neither the Court of First Instance nor the Court of Appeal directed that the execution of the November 28 Order should be
stayed. So far, Mr. Cao and Mr. Li have taken no further steps in respect of the appeal after the Notice of Appeal was filed on November 28, 2018.

PRC Litigation

On May 16, 2018, Sinovac Hong Kong filed a complaint against Sinobioway Medicine, Mr. Aihua Pan, and Shandong Sinobioway Biomedicine Co., Ltd. in the
Fourth Intermediate People’s Court of Beijing (“Beijing Fourth Court”). The complaint sought to hold the defendants jointly and severally liable for the torts they
committed during an attempt of the defendants to take physical control of our facility in Shangdi site in Beijing on April 17, 2018. Later, Sinovac Hong Kong made
an application to the court to add Sinovac Beijing as a third party to participate in the proceedings. The court has granted an order, permitting Sinovac Beijing to
participate in the proceedings as a third party. At the hearing held on July 2, 2019, Sinovac Hong Kong, the defendants and Sinovac Beijing cross-examined the
evidences submitted by each party. Based on the result of the cross-examination, the court declared that an independent evaluation firm shall be engaged by both
the defendants and Sinovac Hong Kong to evaluate the losses and damages sustained by Sinovac Beijing as the result of the actions taken by the defendants on
April  17,  2019.  An  independent  evaluation  firm  was  selected  by  the  court  and  the  evaluation  was  conducted  accordingly.  On  September  17,  2020,  the  Fourth
Intermediate People’s Court of Beijing issued a judgment holding Sinobioway Medicine and Mr. Aihua Pan liable for torts and breaches of shareholders fiduciary
duty under the PRC Company Law and liable for Sinovac Beijing’s losses of RMB 15.4 million caused by their disruptive actions. Sinovac Beijing, Sinobioway
Medicine and Mr. Aihua Pan filed notice to appeal to the Higher People’s Court of Beijing Municipality.

On September 13, 2018, Sinovac Beijing filed a complaint against Mr. Aihua Pan in the Haidian District Court of Beijing (the “Haidian Court”). The complaint
sought  to  request  Mr.  Pan  return  a  business  license  of  Sinovac  Beijing  which  was  reissued  by  the  Haidian  Branch  of  Beijing  Administration  for  Industry  and
Commerce on May 10, 2018 based on the false reporting made by Mr. Pan and the seals of Sinovac Beijing which are forged by Mr. Pan. Sinovac Beijing filed a
preservation application to the court. The court supported Sinovac Beijing’s preservation application and prohibited Mr. Pan from using or authorizing others to use
the above-mentioned license and seals during the case hearing. The court held a preliminary and brief hearing on November 18, 2019. At the hearing, the court has
decided and declared to suspend the proceedings until the final verdict of the September 5 Board Resolution Case (as described below) is given by the Beijing
Fourth Court. As of the date of this annual report, the case is still pending.

On October 8, 2018, Sinovac also became aware that unauthorized documents in respect of Sinovac Beijing had been filed with the Industry and Commerce Bureau
of  Haidian  District  of  Beijing  (“Haidian  AIC”)  to  change  the  directors  of  Sinovac  Beijing  from  Mr.  Weidong  Yin,  Ms.  Nan  Wang  and  Mr.  Dawei  Mao  to  Mr.
Jianzeng Cao, Mr. Pengfei Li and Ms. Xiaomin Yang. Mr. Yin and Ms. Wang filed an objection to such unlawful change with the Haidian AIC. On March 19, 2020,
Haidian AIC issued an official decision (“AIC Decision”) declaring that (i) the unauthorized documents are forged and fake documents; (ii) the filing of change of
directors made based on the forged documents is null and void; (iii) the unlawful filing to change the said directors will be removed and (iv) the registration of
directors of Sinovac Beijing will be restored. The parties of material interest in the AIC Decision may raise objection or file a lawsuit within 60 days. No one had
filed the objection or lawsuit against the AIC Decision within 60 days thereof.

On December 24, 2018, Sinobioway Medicine filed a complaint against Sinovac Beijing in the Haidian Court. The complaint sought a declaration that all the board
resolutions dated September 5, 2018, including the composition of the board, the appointment of the senior managers and the management of the corporate seals,
are  invalid  (“September  5  Board  Resolution  Case”).  Sinovac  Hong  Kong  has  filed  an  application  for  adding  itself  as  the  third  party  in  this  lawsuit.  The  court
decided to accept its application. As a result of Sinovac Hong Kong, which is deemed as a foreign entity under the PRC Civil Procedural Law, participating in the
litigation,  the  Haidian  Court  does  not  have  the  jurisdiction  over  the  case  and  has  transferred  the  case  to  the  Beijing  Fourth  Court.  In  January  2020,  the  Beijing
Fourth Court requested all the participants in the litigation to submit evidence. Both Sinovac Beijing and Sinovac Hong Kong submitted all the valid evidence to
the court in February and March 2020. Then, Sinobioway Medicine filed a request to the Beijing Fourth Court to voluntarily withdrew the case on November 2,
2020. The Beijing Fourth Court supported such voluntary withdraw and made a ruling to dismiss the case on November 6, 2020.

70

 
On July  25,  2019,  Sinobioway  Medicine  filed  a  complaint  against  Sinovac  Beijing  in  the  Haidian  Court.  The  complaint  sought  to  request  Sinovac  Beijing  to
provide (i) all the corporate documents of Sinovac Beijing, including the Articles of Association and board resolutions (ii) all the books and the related accounting
vouchers and records of Sinovac Beijing, created from the date of January 1, 2017, and (iii) the monthly financial reports of Sinovac Beijing for the lawyers and
auditors  of  Sinobioway  Medicine  to  review  and/or  copy.  The complaint  also  sought  to  request  Sinovac  Beijing  to  agree  the  auditors  of  Sinobioway  to  audit  its
annual and quarterly financial reports. On October 28, 2019, one judge of the Haidian Court held a preliminary and brief hearing and declared that the simplified
procedures shall not apply to this case, which shall be heard by a panel of three judges. On August 25, 2020, the Haidian Court issued a judgment only supporting
Sinobioway Medicine’s request for inspecting and copying the Articles of Association and board resolutions of Sinovac Beijing and inspecting books and related
accounting vouchers and records of Sinovac Beijing, and dismissing the rest of Sinobioway Medicine’s claims. Sinobioway Medicine filed a notice to appeal to
Beijing First Intermediate Court  on  September  7,  2020.  Neither party provided any  new  evidence  nor  questioned  the  procedures  applied  by  Haidian  Court.  On
March  15,  2021,  after  a  hearing,  the  Beijing  First  Intermediate  Court  made  a  ruling  after  a  hearing,  rejecting  the  appeal  made  by  Sinobioway  Medicine  and
endorsing the judgment made by Haidian Court. The lawsuit was closed.

Dividend Policy

We have never declared or paid any dividends, nor do we have any present plan to pay any cash dividends on our common shares in the foreseeable future. We
currently intend to retain most, if not all, of our available funds and any future earnings to operate and expand our business.

Our  board  of  directors  has  complete  discretion  on  whether  to  pay  dividends.  Even  if  our  board  of  directors  decides  to  pay  dividends,  the  form,  frequency  and
amount will depend upon our future operations and earnings, capital requirements and surplus, general financial condition, contractual restrictions and other factors
that the board of directors may deem relevant. Cash dividends on our common shares, if any, will be paid in U.S. dollars.

We  are  a  holding  company,  and  we  rely  on  the  dividends  paid  by  our  majority-owned  subsidiaries,  Sinovac  Beijing,  Sinovac  Dalian  and  Sinovac  LS,  and  our
wholly owned subsidiary Sinovac Biomed through Sinovac Hong Kong, for our cash needs, including the funds necessary to pay any dividends and other cash
distributions  to  our  shareholders,  service  any  debt  we  may  incur  and  pay  our  operating  expenses.  The  payment  of  dividends  in  China  is  subject  to  limitations.
Regulations  in  the  PRC  currently  permit  payment  of  dividends  by  our  PRC  subsidiaries  only  out  of  accumulated  profits  as  determined  in  accordance  with
accounting standards and regulations in China. In accordance with the regulations in China, Sinovac Beijing, Sinovac Dalian, Sinovac LS and Sinovac Biomed are
required to set aside at least 10% of its after-tax profits each year to contribute to its reserve fund until the accumulated balance of such reserve fund reaches 50% of
the  registered  capital  of  each  company.  Sinovac  Beijing,  Sinovac  Dalian,  Sinovac  LS  and  Sinovac  Biomed  are  required  to  set  aside,  at  the  discretion  of  their
respective board of directors, a portion of its after-tax profits to their employee welfare and bonus funds.

Furthermore, pursuant to the double tax arrangement between Hong Kong and PRC, dividends paid by a foreign-invested enterprise in China to its direct holding
company in Hong Kong will be subject to withholding tax at a rate of no more than 5% (if the foreign investor owns directly at least 25% of the shares of the
foreign-invested enterprise for a period greater than 12 months), or otherwise 10%. Prior to May 2012, whether the favorable rate will be applicable to dividends
received by Sinovac Hong Kong from our PRC subsidiaries is subject to the approval of the PRC tax authorities. The PRC tax authorities have discretion to assess
whether a recipient of the PRC-sourced income is only an agent or a conduit, or lacks the requisite amount of business substance, in which case the application of
the tax arrangement may be denied. This withholding tax imposed on dividends paid to us by our PRC subsidiaries would reduce our net income attributable to the
shareholders. In May 2012, Sinovac Hong Kong was granted by the local tax bureau the preferential dividend withholding tax rate of 5% on dividends declared by
Sinovac  Beijing  for  three  years  from  2012  to  2014.  The  preferential  dividend  withholding  tax  rate  expired  in  2014.  Subsequent  to  May  2012,  the  preferential
dividend withholding tax rate no longer needed to be approved by the PRC tax authorities, instead companies can apply the 5% rate if a self-assessment determined
the recipient of the PRC-sourced income qualify for the preferential rate. However, such self-assessment could be overturned upon an inspection by the PRC tax
authorities. We will make such self-assessment when necessary and use the appropriate withholding tax rate based on the result of the assessment.

B. Significant Changes

Except with respect to the Exchange and the related issuance of common shares and Series B Preferred Shares pursuant to Sinovac Antigua’s Rights Agreement, as
well as the related ongoing litigation, in each case disclosed elsewhere in this annual report, we have not experienced any significant changes since the date of our
audited consolidated financial statements included in this annual report.

ITEM 9. THE OFFER AND LISTING

A.

Offer and Listing Details

See “—C. Markets.”

B.

Plan of Distribution

Not applicable.

71

 
 
C.

Markets

Our common shares have been listed on the NASDAQ Global Select Market since January 3, 2011 under the symbol “SVA.” In connection with the Exchange and
the issuance of the Exchange Shares into the Shareholder 2019 Rights Exchange Trust, trading of our common shares on Nasdaq has been halted since February 22,
2019.

D.

Selling Shareholders

Not applicable.

E.

Dilution

Not applicable.

F.

Expenses of the Issue

Not applicable.

ITEM 10.ADDITIONAL INFORMATION

A. Share Capital

Not applicable.

B. Memorandum and Articles of Association

We  are  an  Antiguan  company  (Company  No.  11949)  with  limited  liability  and  our  affairs  are  governed  by  our  Articles  of  Incorporation,  By-laws  and  the
International  Business  Corporations  Act.  The  following  are  summaries  of  material  provisions  of  our  Articles  of  Incorporation,  By-laws  and  the  International
Business Corporations Act.

General

All of our outstanding common shares are fully paid and non-assessable. The common shares are issued in registered form. Holders of common shares are entitled
to receive share certificates. Our shareholders who are non-residents of Antigua may freely hold and vote their common shares.

Corporate Purpose

The objects for which the Company is established are set forth in the Company’s Articles of Incorporation, as follows:

1.

2.

To conduct any and all business activities permitted by the laws of the State of Antigua and Barbuda as an International Business Corporation.

To acquire and deal with any property, real or personal, to erect any buildings, and generally to do all acts and things which, in the opinion of Sinovac
Antigua  or  the  Directors,  may  be  conveniently,  or  profitably,  or  usefully,  acquired  and  dealt  with,  carried  on,  erected  or  done  by  Sinovac  Antigua  in
connection with said property.

3.

To generally have and exercise all powers, rights and privileges necessary and incident to carrying out properly the objects herein mentioned.

Sinovac  Antigua  shall  not  engage  in  International  banking,  Trust,  Insurance,  Betting  and  Bookmaking  or  any  other  activity  which  requires  a  License  under  the
International Business Corporations Act.

Sinovac Antigua shall be primarily engaged in research, development and commercialization of human vaccines for infectious diseases.

Dividends; Rights to Share Profits

The holders of our common shares are entitled to such dividends as may be declared by our board of directors subject to the International Business Corporations
Act. For example, under the International Business Corporations Act, a company shall not declare or pay a dividend if this would results in the company’s inability
to pay its liabilities as they become due or the realizable value of the company’s assets less than the aggregate of its liabilities and stated capital of all class. In
addition, a company shall not pay a dividend out of unrealized profits.

72

 
 
 
 
 
 
 
 
 
 
 
Voting Rights

Each common share is entitled to one vote on all matters upon which the common shares are entitled to vote.

A quorum required for a meeting of shareholders consists of shareholders who hold at least a majority of our shares at the meeting present in person or by proxy.
Shareholders’ meetings are held annually and may be convened by our board of directors on its own initiative or upon a request to the directors by shareholders
holding in aggregate at least five percent of our issued share capital. Advance notice of at least 21 days is required for the convening of our annual general meeting
and other shareholders meetings.

Unless  the  International  Business  Corporations  Act  otherwise  requires,  resolutions  to  be  passed  by  the  shareholders  require  a  simple  majority  vote.  Important
matters such as changes to our By-laws require a resolution passed by a vote of shareholders holding a majority of all the outstanding and issued shares.

Transfer of Common Shares

Our  shareholders  may  transfer  common  shares  by  endorsing  the  relevant  share  certificates,  completing  a  share  transfer  form  or  by  other  proper  evidence  of
succession, assignment or authority to transfer.

Liquidation

On a return of capital on winding up or otherwise (other than on conversion, redemption or purchase of common shares), assets available for distribution among the
holders of common shares shall be distributed among the holders of the common shares on a pro rata basis. If our assets available for distribution are insufficient to
repay all of the paid-up capital, the assets will be distributed so that the losses are borne by our shareholders proportionately.

Reserve Fund

Subject to the provisions of the International Business Corporations Act, as amended, we may by special resolution reduce any capital redemption reserve fund or
any share premium account.

Redemption, Repurchase and Surrender of Shares

Subject to the provisions of the International Business Corporations Act, as amended, we may by special resolution reduce our share capital, any capital redemption
on  reserve  fund  or  any  share  premium  account.  However,  in  accordance  with  the  International  Business  Corporations  Act,  we  must  not  make  any  payment  to
purchase or redeem any redeemable issued by it if there are reasonable grounds for us believing that

(a) we are unable or would, after that payment, be unable to pay its liabilities as they become due; or

(b)

the realizable value of our assets would, after that payment, be less than the aggregate of

(i)

our liabilities; and

(ii)

the amount that would be required to pay the holders of the shares that have a right to be paid, on a redemption or in a liquidation, rateable with or
before the holders of the shares to be purchased or redeemed.

Calls on Shares and Forfeiture of Shares

There are no provisions in our Articles of Incorporation and By-laws, as amended, governing the calls on shares and forfeiture of shares.

Limitations on the Rights to Own Shares

There are no provisions in our Articles of Incorporation and By-laws, as amended, governing the limitations on the rights to own shares in the Corporation.

Ownership Threshold

There are no provisions in our Articles of Incorporation and By-laws, as amended, governing the ownership threshold above which shareholder ownership must be
disclosed. Shareholders will, however, be required to disclose shareholder ownership in accordance with applicable laws and regulations.

73

 
 
 
 
 
Inspection of Books and Records

Holders of our common shares will have no general right under Antigua law to inspect or obtain copies of our list of shareholders or our corporate records. They
may, however, access such corporate information as is publicly available in the Companies Registry in St. John’s, Antigua. We will also provide our shareholders
with annual audited consolidated financial statements.

Changes in Capital

We may from time to time by a resolution passed by a majority of the shares entitled to vote:

•

•

•

•

•

increase the share capital by such sum, to be divided into shares of such classes and amount, as the resolution may prescribe;

consolidate and divide all or any of our share capital into shares of a larger amount than our existing shares;

sub-divide our existing shares, or any of them into shares of a smaller amount provided that in the subdivision the proportion between the amount paid and the
amount, if any unpaid on each reduced share shall be the same as it was in case of the share from which the reduced share is derived;

designate and issue any number of new series of preferred shares; and

cancel any shares which, at the date of the passing of the resolution, have not been taken or agreed to be taken by any person and diminish the amount of our
share capital by the amount of the shares so cancelled.

We may by special resolution reduce our share capital and any capital redemption reserve in any manner authorized by law.

Director’s Powers and Qualification

Pursuant  to  the  International  Business  Corporation  Act,  a  director  or  officer  of  the  corporation,  (a)  who  is  a  party  to  a  material  contract  or  proposed  material
contract with the corporation; or (b) who is a director or an officer of any body, or has material interest in any body, that is a party to a material contract or proposed
material contract with the corporation, must disclose in writing to the corporation or request to have entered in the minutes of meetings of directors the nature and
extent of his interest. The disclosure must be made, in the case of a director of a corporation, (a) at the meeting at which a proposed contract is first considered; (b)
if the director was not then interested in the proposed contract, at the first meeting after he becomes so interested; (c) if the director becomes interested after a
contract is made at the first meeting after he becomes so interested; or (d) if a person who is interested in a contract later becomes a director of the corporation, at
the first meeting after he becomes a director. A director of the corporation may vote on any resolution to approve a contract that he has an interest in, if the contract
(a) is an arrangement by way of a security for money loaned to or obligation undertaken by him for the benefit of the corporation or an affiliate of the corporation;
(b) is a contract that relates primarily to his remuneration as a director, officer, employee or agent of the corporation or affiliate of the corporation; (c) is a contract
for indemnity or insurance under section 99 to 101 of the International Business Corporation Act; (d) is a contract with an affiliate of the corporation; or (e) is a
contract other than one referred to in (a) to (d) above. But, in the case of a contract described in paragraph (e), no resolution is valid unless it is approved by not less
than  two-thirds  of  the  votes  of  the  shareholders  of  corporation  to  whom  notice  of  the  nature  and  extent  of  the  director’s  interest  in  the  contract  is  declared  and
disclosed in reasonable details. A general notice to the directors of the corporation by a director or an officer of the corporation declaring that he is a director or
officer of or has a material interest in another body and is to be regarded as interested in any contract with that body is a sufficient declaration of interest in relation
to any such contract.

There  are  no  provisions  in  our  Articles  of  Incorporation  and  By-laws,  as  amended,  governing  the  directors’  powers  to  vote  compensation  to  themselves  or  any
members of their body.

Pursuant  to  the  International  Business  Corporation  Act,  unless  the  articles  or  by-laws,  or  any  unanimous  shareholder  agreement  relating  to,  the  corporation
otherwise  provide,  the  articles  of  a  corporation  are  presume  to  provide  that  the  directors  of  the  corporation  may,  without  authorization  of  the  shareholders,  (i)
borrow money upon the credit of the corporation; (ii) issue, re-issue, sell or pledge debenture of the corporation; (iii) give guarantee on behalf of the corporation to
secure performance of an obligation of any person; and (iv) mortgage, charge, pledge, or otherwise create to secure any obligation of the corporation a security
interest in all or any property of the corporation that is owned or subsequently acquired by the corporation. “Security interest” means any interest in or charge upon
any  property  of  a  corporation,  by  way  of  mortgage,  bond,  lien,  pledge  or  other  mean,  that  is  created  or  taken  to  secure  the  payment  of  an  obligation  of  the
corporation.  Notwithstanding,  when  circumstances  prejudicial  to  the  corporation  exist,  the  corporation  shall  not  directly  or  directly,  give  financial  assistance  by
means of a loan, guarantee or otherwise to a shareholder, director, officer or employee of the corporation or affiliated corporation; or to any person for the purpose
of or in connection with a purchase of a share issued or to be issued by the corporation or a corporation with which it is affiliated. Unless the articles or by-laws, or
any  unanimous  shareholder  agreement  relating  to,  the  corporation  otherwise  provide,  the  directors  of  the  corporation  may  by  resolution  delegate  the  powers
mentioned above to a director, a committee of directors or an officer of the corporation.

There are no provisions in our Articles of Incorporation and By-laws, as amended, governing the directors’ powers as it relates to retirement or non-retirement of
directors under the age limit requirement.

There are no provisions in our Articles of Incorporation and By-laws, as amended, that make provisions for number of shares required for director’s qualification.

74

 
 
General Meetings of Shareholders

We must hold an annual shareholders’ meeting every year. The meeting must take place within Antigua and Barbuda at a place and time prescribed by our board of
directors. As it relates to a special shareholders’ meeting, the board of directors may, whenever it thinks fit, convene a special shareholders’ meeting. Our board of
directors shall also on the requisition of the holders of not less than one-twentieth of our issued share capital proceed to convene a special shareholders’ meeting.
No  business  shall  be  transacted  at  any  shareholders’  meeting  unless  a  quorum  of  shareholders  is  present  at  the  time  when  the  meeting  proceeds  to  business.
Shareholders present in person or by proxy representing a majority of the our shares shall constitute a quorum. All meetings shall be chaired by a director appointed
by  our  board  of  directors  to  act  as  the  chairman.  Minutes  of  the  proceedings  of  every  annual  shareholders’  meeting  shall  be  kept,  and  shall  be  signed  by  the
chairman  of  the  same  meeting,  or  by  the  chairman  of  the  next  succeeding  meeting,  and  the  same,  when  so  signed,  shall  be  conclusive  evidence  of  all  such
proceedings and of the proper election of the chairman.

Subject to any rights or restrictions for the time being attached to any class or classes of shares, every shareholder shall have one vote for each share of which he is
the holder. All elections for director shall be decided by majority vote; all other questions shall be decided by majority vote except as otherwise required by the
International Business Corporations Act, as amended. Unless otherwise provided by law, any action required to be taken at a meeting of the shareholders, or any
other action which may be taken at a meeting of the shareholders, may be taken without a meeting if a consent in writing, setting forth the action so taken, shall be
signed  by  all  of  the  shareholders  entitled  to  vote  with  respect  to  the  subject  matter  thereof.  Votes  may  be  given  either  personally  or  by  proxy.  The  instrument
appointing a proxy shall be in writing under the hand of the appointer of his attorney duly authorized in writing, or if the appointer is a corporation, either under
seal or under the hand of an officer or attorney duly authorized. A proxy need not be our shareholder.

Written or printed notice stating the place, day and hour of the meeting and, in case of a special meeting, the purpose or purpose for which the meeting is called,
shall be delivered not less than 21 days before the date of the meeting, either personally by mail or facsimile, to each shareholder on record entitled to vote at such
meeting. If mailed such notice is deemed to be delivered when deposited in the mail, addressed to the shareholder at his address as it appears on our share transfer
books, with postage thereon prepaid.

Series B Preferred Shares

Ranking.  The  Series  B  Preferred  Shares  rank  senior  to  Sinovac  Antigua’s  common  shares,  Series  A  Junior  Participating  Preferred  Shares,  par  value  $0.001  per
share,  and  Series  C  Junior  Participating  Preferred  Shares,  par  value  $0.001  per  share,  and  junior  to  all  series  or  any  other  class  of  Sinovac  Antigua’s  Preferred
Shares, except to the extent that any such other series or class specifically provides that it will rank on a parity with or junior to the Series B Preferred Shares.

Dividends. Holders of Series B Preferred Shares are entitled to receive (i) the same aggregate amount per share (on an as-converted basis) of all dividends (cash or
in-kind) declared on the common shares and (ii) cumulative preferential dividends, payable quarterly in arrears, at an annual rate of $0.41 per annum in cash until
the  earlier  of  (a)  the  conversion  of  the  Series  B  Preferred  Shares  into  the  common  shares  or  (b)  the  listing  of  the  Series  B  Preferred  Shares  on  a  nationally
recognized securities exchange.

Voting Rights.  Holders  of  Series  B  Preferred  Shares  are  entitled  to  vote  with  the  holders  of  common  shares,  voting  together  as  a  single  class,  on  all  matters
submitted for a vote of the shareholders of Sinovac Antigua, subject to applicable law. Each Series B Preferred Share entitles the holder to a number of votes equal
to the number of common shares issuable upon the conversion of such Series B Preferred Share to which such share is entitled as of the applicable record date.

Conversion. Either (i) at our option or (ii) within 90 days of approval by the shareholders of Sinovac Antigua of an increase in the number of Sinovac Antigua’s
authorized but unissued common shares to such number as would be sufficient to effect the conversion of all or any portion of the outstanding Series B Preferred
Shares (a “Common Share Increase”), all or such portion of the Series B Preferred Shares will be convertible into common shares on a one-for-one basis, subject to
customary anti-dilution adjustments.

Listing. In the event the shareholders of Sinovac Antigua do not vote to approve a Common Share Increase at the next annual general meeting following the initial
issuance  of  any  Series  B  Preferred  Shares,  Sinovac  Antigua  will  use  its  best  efforts  to  list  the  Series  B  Preferred  Shares  for  trading  on  a  nationally  recognized
securities exchange within 180 days of such annual general meeting.

Consolidation,  Merger,  etc.  In  case  Sinovac  Antigua  shall  enter  into  any  consolidation,  amalgamation,  merger,  combination  or  other  transaction  in  which  the
common shares are exchanged for or changed into other shares or securities, cash and/or any other property, then in any such case each Series B Preferred Share
shall at the same time be similarly exchanged or changed into an amount per share (on an as-converted basis) equal to the aggregate amount of shares, securities,
cash and/or any other property (payable in kind), as the case may be, into which or for which each common share is changed or exchanged.

Liquidation. Upon any liquidation, dissolution or winding up of Sinovac Antigua, voluntary or otherwise, the holders of Series B Preferred Shares shall be entitled
to receive a preferential payment of $0.01 per share, plus an aggregate amount per share (on an as-converted basis) equal to the aggregate amount to be distributed
per share to holders of common shares.

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Differences in Corporate Law

The  International  Business  Corporations  Act  is  modeled  after  Canadian  corporate  law  and  differs  from  laws  applicable  to  United  States  corporations  and  their
shareholders. Set forth below is a summary of the significant differences between the provisions of the International Business Corporations Act applicable to us and
the laws applicable to companies incorporated in the State of Delaware and their stockholders.

Mergers and Similar Arrangements

Antigua and Barbuda law does not provide for mergers as that expression is understood under United States corporate law. However, there are statutory provisions
for amalgamation that facilitate the consolidation of companies, provided that the arrangement is approved by a majority number of each class of shareholders and
creditors with whom the arrangement is to be made, and who must in addition represent two-thirds in value of each such class of shareholders or creditors, as the
case may be, that are present and voting either in person or by proxy at a meeting, or meetings, convened for that purpose. The convening of the meetings and
subsequently the arrangement may be, but is not required to be, sanctioned by the High Court of Antigua and Barbuda. While a dissenting shareholder has the right
to express to the court his view that the transaction ought not to be approved, the court can be expected to approve the arrangement if it determines that:

•

•

•

•

the statutory provisions as to the dual majority vote have been met;

the shareholders have been fairly represented at the meeting in question;

the arrangement is such that a businessman would reasonably approve; and

the arrangement is not one that would more properly be sanctioned under some other provision of the International Business Corporations Act.

When a take-over offer is made and accepted (within four months) by holders of 90% of the shares affected, the offeror may, within a two-month period, require the
holders of the remaining shares to transfer such shares on the terms of the offer. An objection can be made to the High Court of Antigua and Barbuda but this is
unlikely to succeed unless there is evidence of fraud, bad faith or collusion.

If the arrangement and reconstruction is thus approved, the dissenting shareholder would have no rights comparable to appraisal rights, which would otherwise
ordinarily be available to dissenting shareholders of United States corporations, providing rights to receive payment in cash for the judicially determined value of
the shares.

Shareholders’ Suits

We are not aware of any reported class action or derivative action having been brought in a court in Antigua and Barbuda. In principle, the company itself will
normally be the proper claimant in actions against directors, and derivative actions may not generally be brought by a minority shareholder. However, Canadian
authorities provide exceptions to the foregoing principle, including when:

•

•

•

a company acts or proposes to act illegally or ultra vires;

the act complained of, although not ultra vires, required a special resolution, which was not obtained; and

those who control the company are perpetrating a “fraud on the minority.”

Directors’ Fiduciary Duties

Under Delaware corporate law, a director of a Delaware corporation has a fiduciary duty to the corporation and its shareholders. This duty has two components: the
duty of care and the duty of loyalty. The duty of care requires that a director act in good faith, with the care that an ordinarily prudent person would exercise under
similar circumstances. Under this duty, a director must inform himself of, and disclose to shareholders, all material information reasonably available regarding a
significant transaction. The duty of loyalty requires that a director act in a manner he reasonably believes to be in the best interests of the corporation. He must not
use his corporate position for personal gain or advantage. This duty prohibits self-dealing by a director and mandates that the best interest of the corporation and its
shareholders take precedence over any interest possessed by a director, officer or controlling shareholder and not shared by the shareholders generally.

In general, actions of a director are presumed to have been made on an informed basis, in good faith and in the honest belief that the action taken was in the best
interests of the corporation. However, this presumption may be rebutted by evidence of a breach of one of the fiduciary duties. Should such evidence be presented
concerning a transaction by a director, a director must prove the procedural fairness of the transaction, and that the transaction was of fair value to the corporation.
As a matter of Antigua and Barbuda law, a director of an Antigua and Barbuda company is in the position of a fiduciary with respect to the company and therefore
it is considered that he owes the following duties to the company — a duty to act bona fide in the best interests of the company, a duty not to make a profit out of
his position as director (unless the company permits him to do so) and a duty not to put himself in a position where the interests of the company conflict with his
personal interest or his duty to a third-party.

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A director of an Antigua and Barbuda company owes to the company a duty to act with skill and care. It was previously considered that a director need not exhibit
in the performance of his duties a greater degree of skill than may reasonably be expected from a person of his knowledge and experience. However, Canadian and
Commonwealth  courts  have  moved  towards  an  objective  standard  with  regard  to  the  required  skill  and  care  and  these  authorities  are  likely  to  be  followed  in
Antigua and Barbuda.

Shareholder Action by Written Consent

Under the Delaware General Corporation Law, a corporation may eliminate the right of shareholders to act by written consent by amendment to its certificate of
incorporation.  Antigua  and  Barbuda  law  and  our  By-laws  provide  that  shareholders  may  approve  corporate  matters  by  way  of  a  unanimous  written  resolution
signed by or on behalf of each shareholder who would have been entitled to vote on such matter at a general meeting without a meeting being held.

Shareholder Proposals

Under the Delaware General Corporation Law, a shareholder has the right to put any proposal before the annual meeting of shareholders, provided it complies with
the  notice  provisions  in  the  governing  documents.  A  special  meeting  may  be  called  by  the  board  of  directors  or  any  other  person  authorized  to  do  so  in  the
governing documents, but shareholders may be precluded from calling special meetings. Antigua and Barbuda law and our By-laws allow our shareholders holding
not less than five per cent of the paid up voting share capital of the company to requisition a shareholder’s meeting. We are obligated under our By-laws and the
International Business Corporations Act to call shareholders’ annual general meetings. See “Risk Factors — We do not currently intend to hold an annual general
meeting of shareholders until after the final determination of the litigation concerning the Rights Agreement, which will delay the ability of our shareholders to vote
in an election of our directors.”

Cumulative Voting

Under  the  Delaware  General  Corporation  Law,  cumulative  voting  for  elections  of  directors  is  not  permitted  unless  the  corporation’s  certificate  of  incorporation
specifically provides for it. Cumulative voting potentially facilitates the representation of minority shareholders on a board of directors since it permits the minority
shareholder to cast all the votes to which the shareholder is entitled on a single director, which increases the shareholder’s voting power with respect to electing
such director. As permitted under Antigua and Barbuda law, our By-laws will not provide for cumulative voting. As a result, our shareholders are not afforded any
less protections or rights on this issue than shareholders of a Delaware corporation.

Removal of Directors

Under the Delaware General Corporation Law, a director of a corporation with a classified board may be removed only for cause with the approval of a majority of
the outstanding shares entitled to vote, unless the certificate of incorporation provides otherwise. Under our By-laws, directors can be removed by a majority vote
of the shareholders.

Transactions with Interested Shareholders

The Delaware General Corporation Law contains a business combination statute applicable to Delaware public corporations whereby, unless the corporation has
specifically  elected  not  to  be  governed  by  such  statute  by  amendment  to  its  certificate  of  incorporation,  it  is  prohibited  from  engaging  in  certain  business
combinations  with  an  “interested  shareholder”  for  three  years  following  the  date  that  such  person  becomes  an  interested  shareholder.  An  interested  shareholder
generally is a person or a group who or which owns or owned 15% or more of the target’s outstanding voting stock within the past three years. This has the effect of
limiting the ability of a potential acquirer to make a two-tiered bid for the target in which all shareholders would not be treated equally. The statute does not apply
if,  among  other  things,  prior  to  the  date  on  which  such  shareholder  becomes  an  interested  shareholder,  the  board  of  directors  approves  either  the  business
combination  or  the  transaction  which  resulted  in  the  person  becoming  an  interested  shareholder.  This  encourages  any  potential  acquirer  of  a  Delaware  public
corporation to negotiate the terms of any acquisition transaction with the target’s board of directors.

Antigua  and  Barbuda  law  has  no  comparable  statute.  As  a  result,  we  cannot  avail  ourselves  of  the  types  of  protections  afforded  by  the  Delaware  business
combination  statute.  However,  although  Antigua  and  Barbuda  law  does  not  regulate  transactions  between  a  company  and  its  significant  shareholders,  it  does
provide that such transactions must be entered into bona fide in the best interests of the company and not with the effect of constituting a fraud on the minority
shareholders.

Dissolution; Winding Up

Under  the  Delaware  General  Corporation  Law,  unless  the  board  of  directors  approves  the  proposal  to  dissolve,  dissolution  must  be  approved  by  shareholders
holding 100% of the total voting power of the corporation. Only if the dissolution is initiated by the board of directors may it be approved by a simple majority of
the corporation’s outstanding shares. Delaware law allows a Delaware corporation to include in its certificate of incorporation a supermajority voting requirement
in connection with dissolutions initiated by the board. Under the International Business Corporations Act, our company may be dissolved, liquidated or wound up
only by the vote of holders of two-thirds of our shares voting at a meeting or the unanimous written resolution of all shareholders.

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Variation of Rights of Shares

Under the Delaware General Corporation Law, a corporation may vary the rights of a class of shares with the approval of a majority of the outstanding shares of
such class, unless the certificate of incorporation provides otherwise. Under Antigua and Barbuda law and our By-laws, if our share capital is divided into more
than one class of shares, we may vary the rights attached to any class only with the vote at a class meeting of holders of two-thirds of the shares of such class or
unanimous written resolution.

Amendment of Governing Documents

Under the Delaware General Corporation Law, a corporation’s governing documents may be amended with the approval of a majority of the outstanding shares
entitled to vote, unless the certificate of incorporation provides otherwise. As permitted by Antigua and Barbuda law, our By-laws may only be amended with the
vote  of  holders  representing  a  majority  of  all  our  shares  voting  issued  and  outstanding  or  the  unanimous  written  resolution  of  all  shareholders.  By-laws  can  be
amended by a vote or unanimous written resolution of the directors.

Indemnification of Directors and Executive Officers and Limitation of Liability

Antigua and Barbuda law does not limit the extent to which a company’s by-laws may provide for indemnification of officers and directors, except to the extent any
such  provision  may  be  held  by  the  Antigua  and  Barbuda  courts  to  be  contrary  to  public  policy,  such  as  to  provide  indemnification  against  civil  fraud  or  the
consequences  of  committing  a  crime.  Our  By-laws  permit  indemnification  of  officers  and  directors  for  losses,  damages,  costs  and  expenses  incurred  in  their
capacities as such unless such losses or damages arise from negligence or illegal action of such directors or officers. This standard of conduct is generally the same
as  permitted  under  the  Delaware  General  Corporation  Law  to  a  Delaware  corporation.  In  addition,  we  have  entered  into  indemnification  agreements  with  our
directors and senior executive officers that provide such persons with additional indemnification beyond that provided in our By-laws.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to our directors, officers or persons controlling us under the foregoing
provisions, we have been informed that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is therefore
unenforceable as a matter of United States law.

We have obtained directors and officers insurance providing indemnification for our directors for certain liabilities.

Anti-takeover Provisions in the By-laws

Some provisions of our By-laws may discourage, delay or prevent a change in control of our company or management that shareholders may consider favorable,
including provisions that authorize our board of directors to issue preferred shares in one or more series and to designate the price, rights, preferences, privileges
and restrictions of such preferred shares without any further vote or action by our shareholders.

However, under Antigua and Barbuda law, our directors may only exercise the rights and powers granted to them under our By-laws for what they believe in good
faith to be in the best interests of our company.

Rights of Non-resident or Foreign Shareholders

There are no limitations imposed by our By-laws on the rights of non-resident or foreign shareholders to hold or exercise voting rights on our shares. In addition,
there are no provisions in our By-laws governing the ownership threshold above which shareholder ownership must be disclosed.

Rights Agreement

In March 2016, we adopted the Rights Agreement that provides for the issuance of one Right for each of our outstanding common shares. In February 2019, we
amended and restated the Rights Agreement that provides for the issuance of one Right for each of our outstanding common shares or Series B Preferred Shares. In
February 2020 and 2021, we further amended the amended and restated Rights Agreement to extend its term until February 2022. The Rights are designed to assure
that  all  of  our  shareholders  receive  fair  and  equal  treatment  in  the  event  of  any  proposed  takeover  and  to  guard  against  partial  tender  offers,  open  market
accumulations, undisclosed voting arrangements and other abusive or coercive tactics to gain control of our company or our board of directors without paying all
shareholders a control premium. The Rights will cause substantial dilution to a person or group that acquires 15% or more of the aggregate total of our common
shares and Series B Preferred Shares on terms not approved by our board of directors.

Rights  agreements  are  allowable  under  Delaware  law.  Additionally,  as  discussed  above,  on  December  19,  2018,  the  Antigua  Court  held  that  Sinovac  Antigua’s
Rights Agreement is valid under Antigua law. 1Globe filed notice to appeal the Antigua Court’s judgment on January 29, 2019. 1Globe’s appeal of the Antigua
Court’s Judgment was heard on September 18, 2019, and the appeal decision is pending as of the date of this annual report.

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C. Material Contracts

We  have  not  entered  into  any  material  contracts  other  than  in  the  ordinary  course  of  business  and  other  than  those  described  in  “Item  4.  Information  on  the
Company” or elsewhere in this annual report on Form 20-F.

D. Exchange Controls

Foreign Currency Exchange

Pursuant to the Foreign Currency Administration Rules promulgated in 1996 and amended in 1997 and various regulations issued by SAFE and other relevant PRC
government  authorities,  renminbi  is  freely  convertible  only  to  the  extent  of  current  account  items,  such  as  trade  related  receipts  and  payments,  interest  and
dividends.  Capital  account  items,  such  as  direct  equity  investments,  loans  and  repatriation  of  investment,  require  the  prior  approval  from  SAFE  or  its  local
counterpart for conversion of renminbi into a foreign currency, such as U.S. dollars, and remittance of the foreign currency outside the PRC.

Payments  for  transactions  that  take  place  within  PRC  must  be  made  in  renminbi.  Unless  otherwise  approved,  PRC  companies  must  repatriate  foreign  currency
payments received from abroad. Foreign-invested enterprises may retain foreign exchange in accounts with designated foreign exchange banks subject to a cap set
by SAFE or its local counterpart. Unless otherwise approved, domestic enterprises must convert all of their foreign currency receipts into renminbi.

E. Taxation

Antigua and Barbuda Taxation

We  and  our  securities  holders,  other  than  those  resident  in  Antigua  and  Barbuda,  are  exempt  from  Antigua  and  Barbuda  income,  corporation  or  profits  tax,
withholding tax, capital gains tax, capital transfer tax, estate duty or inheritance tax. We are not subject to stamp or other similar duty on the issuance, transfer or
redemption  of  our  common  shares.  Under  Section  276  of  the  International  Business  Corporations  Act  of  Antigua  and  Barbuda,  the  tax  exemption  we  and  our
securities holders currently enjoy will continue in effect for a period of 50 years from our date of incorporation, which is March 1, 1999. No reciprocal income tax
treaty affecting us exists between Antigua and Barbuda and the United States.

United States Federal Income Taxation

The following discussion describes the material U.S. federal income tax consequences to U.S. Holders (as defined below) under current law of an investment in our
common shares. The effects of any applicable state or local laws and other U.S. federal tax laws such as estate and gift tax laws, and the impact of the alternative
minimum tax and the Medicare contribution tax on net investment income, are not discussed. This discussion applies only to U.S. Holders that hold our common
shares as capital assets (generally, property held for investment) and have the U.S. dollar as their functional currency. This discussion is based on the tax laws of the
United States as in effect on the date of this annual report and on U.S. Treasury regulations in effect or, in some cases, proposed as of the date of this annual report,
as well as judicial and administrative interpretations thereof available on or before such date. All of the foregoing authorities are subject to change, which change
could  apply  retroactively  and  could  affect  the  tax  consequences  described  below.  The  following  discussion  does  not  address  all  U.S.  federal  income  tax
consequences relevant to a U.S. Holder’s particular circumstances or to holders subject to particular rules, including:

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•

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•

•

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banks and other financial institutions;

insurance companies;

regulated investment companies;

real estate investment trusts;

broker-dealers;

traders that elect to use a mark-to-market method of accounting;

U.S. expatriates and certain former citizens or long-term residents of the United States;

tax-exempt entities;

persons holding a common share as part of a straddle, hedging, conversion or integrated transaction;

persons that actually or constructively own 10% or more of our stock by vote or value;

persons  subject  to  special  tax  accounting  rules  as  a  result  of  any  item  of  gross  income  with  respect  to  our  common  shares  being  taken  into  account  in  an
“applicable financial statement” (as defined in the U.S. Internal Revenue Code of 1986, as amended) (the “Code”));

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•

•

•

persons that hold our common shares through a permanent establishment or fixed base outside the United States;

partnerships or other pass-through entities, or persons holding our common shares through such entities; or

persons who acquired our common shares pursuant to the exercise of any employee share option or otherwise as compensation.

INVESTORS ARE URGED TO CONSULT THEIR TAX ADVISORS REGARDING THE APPLICATION OF THE U.S. FEDERAL INCOME TAX RULES TO
THEIR PARTICULAR CIRCUMSTANCES AS WELL AS THE ESTATE AND GIFT, STATE, LOCAL AND FOREIGN TAX CONSEQUENCES TO THEM OF
THE PURCHASE, OWNERSHIP AND DISPOSITION OF OUR COMMON SHARES.

The discussion below of the U.S. federal income tax consequences to “U.S. Holders” will apply to you if you are a beneficial owner of our common shares and you
are, for U.S. federal income tax purposes:

•

•

•

•

an individual who is a citizen or resident of the United States;

a corporation (or other entity taxable as a corporation for U.S. federal income tax purposes) created or organized under the laws of the United States, any state
thereof or the District of Columbia;

an estate, the income of which is subject to U.S. federal income taxation regardless of its source; or

a trust that (1) is subject to the primary supervision of a court within the United States and the control of one or more ”United States persons” (within the
meaning of Section 7701(a)(30) of the Code) for all substantial decisions or (2) has a valid election in effect under applicable U.S. Treasury regulations to be
treated as a United States person for U.S. federal income tax purposes.

If a partnership (or other entity taxable as a partnership for U.S. federal income tax purposes) is a beneficial owner of our common shares, the tax treatment of a
partner in the partnership generally will depend upon the status of the partner and the activities of the partnership. If you are a partner in such partnership, you
should consult your tax advisor.

Taxation of Dividends and Other Distributions on Our Common Shares

Subject to the PFIC rules discussed below, the gross amount of any distributions we make to you with respect to our common shares generally will be includible in
your  gross  income  in  the  year  received  as  dividend  income  to  the  extent  the  distribution  is  paid  out  of  our  current  or  accumulated  earnings  and  profits  (as
determined under U.S. federal income tax principles). To the extent the amount of the distribution exceeds our current and accumulated earnings and profits, such
excess amount will be treated first as a tax-free return of your tax basis in your common shares, and then, to the extent such excess amount exceeds your tax basis,
as capital gain. We currently do not, and we do not intend to, calculate our earnings and profits under U.S. federal income tax principles. Therefore, a U.S. Holder
should expect that a distribution will generally be reported as a dividend even if that distribution would otherwise be treated as a non-taxable return of capital or as
capital gain under the rules described above. Any dividends we pay will not be eligible for the dividends-received deduction allowed to corporations in respect of
dividends received from U.S. corporations.

With respect to certain non-corporate U.S. Holders, including individual U.S. Holders, dividends may constitute “qualified dividend income” eligible to be taxed at
the preferential rate applicable to capital gains, provided that (1) our common shares are readily tradable on an established securities market in the United States, or
we are eligible for the benefits of a qualifying income tax treaty with the United States that includes an exchange of information program, (2) we are neither a PFIC
nor treated as such with respect to you (as discussed below) for the taxable year in which the dividend is paid or the preceding taxable year and (3) certain holding
period  requirements  are  met.  Under  U.S.  Internal  Revenue  Service  authority,  common  shares  are  considered  for  the  purpose  of  clause  (1)  above  to  be  readily
tradable on an established securities market in the United States if they are listed on the NASDAQ Global Select Market, as are our common shares. There can be
no assurance our common shares will continue to be readily tradable on an established securities market in the future. Consequently, there can be no assurance
dividends paid on our common shares will continue to qualify for the reduced tax rates. If we are treated as a “resident enterprise” for PRC tax purposes under the
EIT Law (see “Item 10. Additional Information — E. Taxation — PRC Taxation”), we may be eligible for the benefits of the income tax treaty between the United
States  and  the  PRC.  You  should  consult  your  tax  advisors  regarding  the  availability  of  the  lower  capital  gains  rate  applicable  to  qualified  dividend  income  for
dividends paid with respect to our common shares.

Dividends generally will constitute foreign source income for foreign tax credit limitation purposes. If the dividends are taxed as qualified dividend income (as
discussed above), the amount of the dividend taken into account for purposes of calculating the U.S. foreign tax credit limitation generally will be limited to the
gross  amount  of  the  dividend,  multiplied  by  the  reduced  tax  rate  applicable  to  qualified  dividend  income  and  divided  by  the  highest  tax  rate  that  would  be
applicable  to  dividends  if  not  for  the  reduced  tax  rate  applicable  to  qualified  dividend  income.  The  limitation  on  foreign  taxes  eligible  for  credit  is  calculated
separately  with  respect  to  specific  classes  of  income.  For  this  purpose,  dividends  distributed  by  us  with  respect  to  our  common  shares  generally  will  constitute
“passive category income.”

If  PRC  withholding  taxes  apply  to  dividends  paid  to  you  with  respect  to  the  common  shares  (see  “Item  10.  Additional  Information  —  E.  Taxation  —  PRC
Taxation”), subject to certain conditions and limitations, such PRC withholding taxes may be treated as foreign taxes eligible for credit against your U.S. federal
income tax liability. The rules relating to the determination of the foreign tax credit are complex, and you should consult your tax advisors regarding the availability
of a foreign tax credit in your particular circumstances.

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Taxation of Disposition of Our Common Shares

Subject to the PFIC rules discussed below, you will recognize taxable gain or loss on any sale, exchange or other taxable disposition of a common share equal to the
difference between the amount realized for the common share and your tax basis in the common share. The gain or loss generally will be capital gain or loss. If you
are a non-corporate U.S. Holder, including an individual U.S. Holder, who has held the common share for more than one year, you will be eligible for reduced tax
rates. The deductibility of capital losses is subject to limitations.

Any  gain  or  loss  you  recognize  on  a  disposition  of  our  common  shares  generally  will  be  treated  as  U.S.  source  income  or  loss  for  foreign  tax  credit  limitation
purposes. However, if we are treated as a PRC resident enterprise for PRC tax purposes and PRC tax is imposed on any gain from the disposition of the common
shares, a U.S. Holder that is eligible for the benefits of the income tax treaty between the United States and the PRC (see “Item 10. Additional Information — E.
Taxation  —  PRC  Taxation”)  may  elect  to  treat  the  gain  as  PRC  source  income  under  such  treaty.  You  should  consult  your  tax  advisors  regarding  the  proper
treatment of gain or loss in your particular circumstances.

Passive Foreign Investment Company

Based on our estimates of the fair market value of our assets, and the composition of our income and assets, we do not believe we were a PFIC for U.S. federal
income tax purposes for our taxable year ended December 31, 2020. However, the application of the PFIC rules is subject to uncertainty in several respects, and we
cannot assure that we will not be a PFIC for any taxable year.

In general, a non-U.S. corporation will be a PFIC for any taxable year if either:

•

•

at least 75% of its gross income for such year is passive income, or

at least 50% of the value of its assets (generally based on a quarterly average) during such year is attributable to assets that produce passive income or are held
for the production of passive income.

For this purpose, passive income generally includes, among other things, dividends, interest, royalties, rents, annuities, and net gains from certain commodity and
foreign currency transactions, subject to certain exceptions. Passive income generally does not include rents and royalties derived from the active conduct of a trade
or  business  (other  than  from  a  related  person).  We  will  be  treated  as  owning  our  proportionate  share  of  the  assets  and  receiving  our  proportionate  share  of  the
income of any other corporation in which we own, directly or indirectly, at least 25% (by value) of the stock.

We must make a separate determination after the close of each taxable year as to whether we were a PFIC for that year. In particular, under normal circumstances,
the value of our assets for purposes of the PFIC test for a particular taxable year would generally be determined by reference to the market price of our common
shares at the end of each quarter during such taxable year. As a result, fluctuations in the market price of our common shares (or changes in the composition of our
income  or  assets)  may  cause  us  to  become  a  PFIC  for  any  subsequent  year.  However,  as  a  result  of  the  suspension  of  trading  in  our  shares,  we  are  unable  to
reference the actual market prices of our common shares in determining our PFIC status. As a result, we have relied on the market price as of the last date of the
last trading day as well as implied valuations based on recent financings in our determination. We cannot provide any assurances that the actual value of our shares
are not materially different on actual measurement dates and as to whether the IRS will respect our approach. This uncertainty will continue so long as trading in
our shares remains suspended. In addition, the composition of our income and assets will be affected by how, and how quickly, we use any cash we generate from
our operations or raise in any offering. If we are a PFIC for any taxable year during which you hold our common shares, we generally will continue to be treated as
a PFIC with respect to you for that year and for all succeeding years during which you hold our common shares, regardless of whether we continue to meet the
income or asset tests described above, unless we cease to be a PFIC and you make a “deemed sale” election with respect to our common shares. If such election is
made, you will be deemed to have sold common shares you hold at their fair market value on the last day of the last taxable year in which we qualified as a PFIC,
and any gain from such deemed sale would be subject to the rules described in the following two paragraphs. After the deemed sale election, your common shares
with respect to which such election was made will not be treated as shares in a PFIC unless we subsequently become a PFIC. You are urged to consult your tax
advisor about this election.

For each taxable year we are treated as a PFIC with respect to you, you will be subject to additional reporting requirements as well as special tax rules with respect
to any “excess distribution” you receive and any gain you realize from a sale or other disposition (including a pledge) of the common shares, unless (i) you make a
“mark-to-market”  election  as  discussed  below  or  (ii)  we  have  ceased  to  be  a  PFIC  and  you  have  previously  made  the  deemed  sale  election  described  above.
Distributions you receive in a taxable year that are greater than 125% of the average annual distributions you received during the shorter of the three preceding
taxable years or your holding period for the common shares before the current taxable year will be treated as excess distributions. Under these special tax rules:

•

•

•

the excess distribution or recognized gain will be allocated ratably over your holding period for the common shares;

the amount allocated to the current taxable year, and any taxable years in your holding period prior to the first taxable year in which we became a PFIC, will
be treated as ordinary income; and

the amount allocated to each other year will be subject to tax at the highest income tax rate in effect for individuals or corporations, as applicable, for each
such year, and the interest charge generally applicable to underpayments of tax will be imposed on the resulting tax attributable to each such year.

81

 
Gains (but not losses) from a sale or other disposition of the common shares are not taxed at reduced tax rates, even if you hold the common shares as capital assets.

If  we  are  treated  as  a  PFIC  with  respect  to  you  for  any  taxable  year,  to  the  extent  any  of  our  subsidiaries  are  also  PFICs  or  we  make  direct  or  indirect  equity
investments in other entities that are PFICs, you will be deemed to own shares in such lower-tier PFICs directly or indirectly owned by us in the proportion that the
value of the common shares you own bears to the value of all of our common shares, and you may be subject to the rules described in the preceding two paragraphs
with respect to the shares of such lower-tier PFICs that you would be deemed to own. You should consult your tax advisors regarding the application of the PFIC
rules to any of our subsidiaries.

A U.S. Holder of “marketable stock” (as defined below) in a PFIC may make a mark-to-market election for such stock to elect out of the PFIC rules described
above  regarding  excess  distributions  and  recognized  gains.  If  you  make  a  mark-to-market  election  for  the  common  shares,  you  will  include  in  income  for  each
taxable year that we are a PFIC an amount equal to the excess, if any, of the fair market value of the common shares as of the close of your taxable year over your
adjusted basis in such common shares. You will be allowed a deduction for the excess, if any, of the adjusted basis of the common shares over their fair market
value as of the close of the taxable year. However, deductions will be allowable only to the extent of any net mark-to-market gains on the common shares included
in your income for prior taxable years. Amounts included in your income under a mark-to-market election, as well as gain from the actual sale or other disposition
of the common shares will be treated as ordinary income. Ordinary loss treatment will apply to the deductible portion of any mark-to-market loss on the common
shares, as well as to any loss from the actual sale or other disposition of the common shares, to the extent that the amount of such loss does not exceed the net mark-
to-market gains previously included for such common shares. Your basis in the common shares will be adjusted to reflect any such income or loss amounts. If you
make a valid mark-to-market election, any distributions we make would generally be subject to the tax rules discussed above under “— Taxation of Dividends and
Other Distributions on Our Common Shares,” and the lower capital gains rate applicable to qualified dividend income would not apply.

The mark-to-market election is available only for “marketable stock,” which generally is defined as stock that is traded in greater than de minimis quantities on at
least 15 days during each calendar quarter (“regularly traded”) on a “qualified exchange or other market,” as defined in applicable U.S. Treasury regulations. Any
trades that have as their principal purpose satisfying this requirement will be disregarded. Our common shares are listed on the NASDAQ Global Select Market,
which is a qualified exchange or other market for these purposes. Consequently, if the common shares remain listed on the NASDAQ Global Select Market and are
regularly traded, and you are a holder of common shares, we expect the mark-to-market election would be available to you if we are or become a PFIC. There can
be  no  assurance  the  common  shares  are  or  will  be  “regularly  traded”  for  purposes  of  the  mark-to-market  election.  Once  made,  the  election  cannot  be  revoked
without the consent of the U.S. Internal Revenue Service unless the common shares cease to be marketable stock. Because a mark-to-market election cannot be
made  for  equity  interests  in  any  lower-tier  PFICs  that  we  own,  a  U.S.  Holder  may  continue  to  be  subject  to  the  PFIC  rules  described  above  regarding  excess
distributions and recognized gains with respect to its indirect interest in any investments held by us that are treated as an equity interest in a PFIC for U.S. federal
income tax purposes. You should consult your tax advisors as to the availability and desirability of a mark-to-market election, as well as the impact of such election
on interests in any lower-tier PFICs.

Alternatively,  a  U.S.  Holder  of  stock  in  a  PFIC  may  make  a  “qualified  electing  fund”  election  with  respect  to  such  corporation  to  elect  out  of  the  PFIC  rules
described  above  regarding  excess  distributions  and  recognized  gains.  A  U.S.  Holder  that  makes  a  qualified  electing  fund  election  with  respect  to  a  PFIC  will
generally include in income such holder’s pro rata share of the corporation’s income on a current basis. However, you may make a qualified electing fund election
with  respect  to  your  common  shares  only  if  we  furnish  you  annually  with  certain  tax  information,  and  we  currently  do  not  intend  to  prepare  or  provide  such
information.

Each U.S. shareholder of a PFIC is required to file an annual report containing such information as the U.S. Treasury requires. If we are or become a PFIC, you
should consult your tax advisors regarding any reporting requirements that may apply to you.

You are urged to consult your tax advisors regarding the application of the PFIC rules to your investment in our common shares.

Information Reporting and Backup Withholding

Dividend payments with respect to our common shares and proceeds from the sale, exchange or redemption of our common shares may be subject to information
reporting to the U.S. Internal Revenue Service and possible U.S. backup withholding at a current rate of 24%. Backup withholding will not apply, however, to a
U.S. Holder that furnishes a correct taxpayer identification number and makes any other required certification on U.S. Internal Revenue Service Form W-9 or that is
otherwise  exempt  from  backup  withholding.  U.S.  Holders  that  are  required  to  establish  their  exempt  status  generally  must  provide  such  certification  on  U.S.
Internal Revenue Service Form W-9. We do not assume responsibility for backup withholding.

Backup withholding is not an additional tax. Amounts withheld as backup withholding may be credited against your U.S. federal income tax liability, and you may
obtain  a  refund  of  any  excess  amounts  withheld  under  the  backup  withholding  rules  by  filing  the  appropriate  claim  for  refund  with  the  U.S.  Internal  Revenue
Service  and  furnishing  any  required  information  in  a  timely  manner.  You  should  consult  your  tax  advisors  regarding  the  application  of  the  U.S.  information
reporting and backup withholding rules.

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Additional Reporting Requirements

Certain U.S. Holders who are individuals are required to report information relating to an interest in our common shares, subject to certain exceptions (including an
exception for common shares held in accounts maintained by certain financial institutions). U.S. Holders should consult their tax advisors regarding the effect, if
any, of these rules on their ownership and disposition of our common shares.

PRC Taxation

Under the EIT Law, enterprises established under the laws of non-PRC jurisdictions but whose “de facto management body” is located in China are considered
“resident  enterprises”  for  PRC  tax  purposes.  Under  the  implementation  regulations  issued  by  the  State  Council  relating  to  the  EIT  Law,  “de  facto  management
bodies” are defined as the bodies that have material and overall management control over the business, personnel, accounts and properties of an enterprise. In 2009,
the  State  Administration  of  Taxation  issued  a  circular,  known  as  Circular  82,  which  provides  certain  specific  criteria  for  determining  whether  the  “de  facto
management body” of a PRC-controlled offshore incorporated enterprise is located in China. Although this circular only applies to offshore enterprises controlled
by  PRC  enterprises  or  PRC  enterprise  groups,  not  those  controlled  by  PRC  individuals  or  foreigners,  the  criteria  set  forth  in  the  circular  may  reflect  the  State
Administration of Taxation’s general position on how the “de facto management body” text should be applied in determining the tax resident status of all offshore
enterprises. According to Circular 82, an offshore incorporated enterprise controlled by a PRC enterprise or a PRC enterprise group will be regarded as a PRC tax
resident by virtue of having its “de facto management body” in China only if all of the following conditions are met: (i) the primary location of the day-to-day
operational  management  is  in  the  PRC;  (ii)  decisions  relating  to  the  enterprise’s  financial  and  human  resource  matters  are  made  or  are  subject  to  approval  by
organizations or personnel in the PRC; (iii) the enterprise’s primary assets, accounting books and records, company seals, and board and shareholders minutes, are
located  or  maintained  in  the  PRC;  and  (iv)  at  least  50%  of  voting  board  members  or  senior  executives  habitually  reside  in  the  PRC.  Substantially  all  of  our
management are currently based in China, and may remain in China in the future. If we were treated as a “resident enterprise” for PRC tax purposes, we would be
subject to PRC income tax on our worldwide income at a uniform tax rate of 25%. Dividends received by us from our PRC subsidiaries may be exempt from PRC
withholding tax.

Under  the  EIT  Law  and  its  implementation  regulations,  dividends  paid  to  a  non-PRC  investor  are  generally  subject  to  a  10%  PRC  withholding  tax,  if  such
dividends  are  derived  from  sources  within  China  and  the  non-PRC  investor  is  considered  to  be  a  non-resident  enterprise  without  any  establishment  or  place  of
business within China or if the dividends paid have no connection with the non-PRC investor’s establishment or place of business within China, unless such tax is
eliminated or reduced under an applicable tax treaty. Similarly, any gain realized on the transfer of common shares by such investor is also subject to a 10% PRC
withholding tax if such gain is regarded as income derived from sources within China, unless such tax is eliminated or reduced under an applicable tax treaty.

If we were considered a PRC “resident enterprise,” it is possible that the dividends we pay with respect to our common shares, or the gain you may realize from the
transfer of our common shares, would be treated as income derived from sources within China and be subject to income tax at 10%.

F. Dividends and Paying Agents

Not applicable.

G. Statement by Experts

Not applicable.

H. Documents on Display

We are subject to the periodic reporting and other informational requirements of the Exchange Act. Under the Exchange Act, we are required to file reports and
other information with the SEC. Specifically, we are required to file annually a Form 20-F within four months after the end of each fiscal year. You can access the
reports that we file with the SEC at the SEC’s web site at www.sec.gov, which contains reports, proxy and information statements, and other information regarding
registrants that make electronic filings with the SEC using its EDGAR system. As a foreign private issuer, we are exempt from the rules under the Exchange Act
prescribing the furnishing and content of quarterly reports and proxy statements, and officers, directors and principal shareholders are exempt from the reporting
and short-swing profit recovery provisions contained in Section 16 of the Exchange Act.

We  will  furnish  the  transfer  agent  of  our  common  shares,  with  our  annual  reports,  which  will  include  a  review  of  operations  and  annual  audited  consolidated
financial  statements  prepared  in  conformity  with  U.S.  GAAP,  and  all  notices  of  shareholders’  meetings  and  other  reports  and  communications  that  are  made
generally available to our shareholders. The transfer agent will make such notices, reports and communications available to holders of our common shares and,
upon our request, will mail to all record holders of our common shares the information contained in any notice of a shareholders’ meeting received by the transfer
agent from us.

In accordance with the NASDAQ Rules, we will post this annual report on Form 20-F on our website www.sinovac.com. In addition, we will provide hardcopies of
our annual report free of charge to shareholders upon request.

83

 
 
 
 
I.

Subsidiary Information

For a listing of our subsidiaries, see “Item 4. Information on the Company — C. Organizational Structure.”

ITEM 11.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Foreign Exchange Risk

Substantially all of our revenues and most of our costs and our expenses are denominated in renminbi. Our exposure to foreign exchange risk primarily relates to
cash and cash equivalents denominated in U.S. dollars as a result of our past issuances of common shares through a private placement and proceeds from our public
offering of common shares. Furthermore, the renminbi prices of some of the materials and supplies for reagent kits that are imported from companies in the United
States, Sweden and United Kingdom may be affected by fluctuations in the value of renminbi against the currencies of those countries. We also incur professional,
investor relations, director compensation and miscellaneous fees related to our operations as a public company that are denominated in U.S. dollars.

The  value  of  the  renminbi  against  the  U.S.  dollar  and  other  currencies  may  fluctuate  and  is  affected  by,  among  other  things,  changes  in  China’s  political  and
economic conditions. The conversion of renminbi into foreign currencies, including U.S. dollars, has been based on rates set by the People’s Bank of China. In July
2005, the PRC government changed its decades-old policy of pegging the value of renminbi to U.S. dollars, and renminbi appreciated more than 20% against U.S.
dollars  over  the  following  three  years.  Between  July  2008  and  June  2010,  this  appreciation  subsided  and  the  exchange  rate  between  renminbi  and  U.S.  dollars
remained within a narrow band. Since June 2010, renminbi has fluctuated against U.S. dollars, at times significantly and unpredictably. It is difficult to predict how
market forces or PRC or U.S. government policy may impact the exchange rate between renminbi and U.S. dollar in the future. The PRC government has indicated
that it will make effort to widen the trading band of the renminbi exchange rate, which increases the possibility of sharp fluctuations in renminbi’s value in the
future as well as the unpredictability associated with renminbi’s exchange rate. By way of example, assuming we had converted a U.S. dollar denominated cash
balance of $1.0 million as of December 31, 2020 into renminbi at the noon buying rate of $1.00 for RMB6.5250 as of December 31, 2020, such a cash balance
would  have  been  RMB6.52  million.  Assuming  a  1%  appreciation/depreciation  of  the  renminbi  against  the  U.S.  dollar,  such  a  cash  balance  would  have
decreased/increased by RMB65,250 as of December 31, 2020.

Our financial statements are expressed in U.S. dollars but our subsidiaries’ functional currency is renminbi. The value of our shares will be affected by the foreign
exchange rate between U.S. dollars and renminbi. To the extent we hold assets denominated in U.S. dollars, any appreciation of the renminbi against the U.S. dollar
could result in a change to our statements of comprehensive income and a reduction in the value of our U.S. dollar denominated assets. On the other hand, a decline
in  the  value  of  renminbi  against  the  U.S.  dollar  could  reduce  the  U.S.  dollar  equivalent  amounts  of  our  financial  results,  the  value  of  your  investment  in  our
company and the dividends we may pay in the future, if any, all of which may have a material adverse effect on the prices of our shares.

Interest Rate Risk

Our  exposure  to  interest  rate  risk  relates  primarily  to  the  interest  expense  associated  with  our  short-term  and/or  long-term  bank  borrowings  as  well  as  interest
income provided by excess cash invested in demand and term deposits. Such borrowing and interest-earning instruments carry a degree of interest rate risk. We
have not historically used, and do not expect to use in the future, any derivative financial instruments to manage our exposure to interest risk. We have not been
exposed nor do we anticipate being exposed to material risks due to changes in interest rates. The weighted effective interest rate on our outstanding loans was
4.84%, 5.09% and 4.91% for the years ended December 31, 2020, 2019 and 2018. A hypothetical increase or decrease in interest rates of 1% would increase or
decrease our annual interest and financing expenses by $351 based on our outstanding indebtedness as of December 31,2020.

ITEM 12.DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

C. Warrants and Rights.

With respect to the preferred share purchase right, see Form 8-A (file no. 001-32371), Amendment No. 1 to Form 8-A (file no. 001-32371) and Amendment No. 2
to Form 8-A (file no. 001-32371) which we filed with the Securities and Exchange Commission on February 22, 2019 and February 21, 2020 and February 22,
2021, respectively).

PART II

ITEM 13.DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES

None.

84

 
 
ITEM 14.MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

A. — D. Material Modifications to the Rights of Security Holders

In March 2016, we adopted the Rights Agreement. In February 2019, we amended and restated the Rights Agreement. Pursuant to the amended and restated Rights
Agreement, subject to limited exceptions, upon (i) a person or group obtaining ownership of 15% or more of aggregate total of our common shares and Series B
Preferred  Shares  (on  an  as  converted  basis)  then  issued  and  outstanding  or  (ii)  the  commencement  or  announcement  of  an  intention  to  make  a  tender  offer  or
exchange offer, the consummation of which would result in the beneficial ownership by a person or group of 15% or more of our common shares and Series B
Preferred Shares (on an as converted basis) then issued and outstanding, in each case, without the approval of our board of directors, each Right will entitle the
holders, other than the acquiring person, to buy, at an exercise price of $20.00, one one-thousandth of a Series C Preferred Share. Holders are entitled to receive, in
lieu of each one one-thousandths of a Series C Preferred Share, common shares or Series B Preferred Shares having a market value at that time of twice the Right’s
exercise price. Our board of directors is entitled to redeem the Rights at $0.001 per Right at any time before the Rights are exercisable. We refer to the person who
acquired 15% or more of the outstanding common shares or Series B Preferred Shares of Sinovac Antigua as the “acquiring person.” In February 2020, we further
amended the amended and restated Rights Agreement to extend its term until February 2021. In February 2020 and 2021, we further amended the amended and
restated Rights Agreement to extend its term until February 2022.

On  February  18,  2019,  after  reviewing  the  judgment  of  the  Antigua  Court  of  December  19,  2018  and  considering  all  additional  facts  known  to  the  board  of
directors, our board of directors determined that the Collaborating Shareholders became Acquiring Persons as defined under Sinovac Antigua’s Rights Agreement,
and that their conduct resulted in a Trigger Event under the Rights Agreement. As a result, the Rights held by the Collaborating Shareholders were deemed void.
Pursuant  to  the  Rights  Agreement,  the  board  of  directors  elected  to  exchange  each  valid  and  outstanding  Right  held  by  Sinovac  Antigua’s  shareholders  (not
including  the  Collaborating  Shareholders)  for  an  Exchange  Share.  On  March  6,  2019,  the  Delaware  Chancery  Court  entered  a  status  quo  order  providing  that
Sinovac Antigua not distribute any of the Exchange Shares from the trust until the final disposition of the pending Delaware litigation or further order of the Court.
On April 4, 2019, the Eastern Caribbean Supreme Court, Court of Appeal issued an order that restrains Sinovac Antigua from taking further action under its Rights
Agreement, including the distribution of the previously issued Exchange Shares to the holders of valid Rights, until the conclusion of 1Globe Capital, LLC’s appeal
of the December 19, 2018 Judgment of the Antigua Court. On April 8, 2019, the Delaware Chancery Court stayed the Delaware litigation pending the outcome of
1Globe’s appeal of the Antigua Judgment. 1Globe’s appeal of the Antigua Court’s Judgment was heard on September 18, 2019, and the appeal decision is pending
as of the date of this annual report.

On February 22, 2019, in connection with the Exchange, we issued approximately 27.8 million common shares and 14.6 million Series B Preferred Shares for the
benefit of the holders of valid and outstanding Rights as of that date. This issuance had the effect of significantly diluting the holdings of the shareholders that are
not entitled to participate in the Exchange. The Series B Preferred Shares share equally in all dividends and distributions made on our common shares and vote
together with the common shares on all matters brought before the shareholders, in each case on an as-converted basis and subject to applicable law. The Series B
Preferred  Shares  are  convertible  into  common  shares  at  our  option,  or  automatically  upon  a  successful  shareholder  vote  to  increase  the  authorized  number  of
common shares of Sinovac Antigua. Until the Series B Preferred Shares are converted into common shares (or until the Series B Preferred Shares are listed on a
nationally recognized securities exchange), they will earn a preferred dividend equal to $0.41 per annum, payable quarterly in arrears.

E. Use of Proceeds

Not applicable.

ITEM 15.CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

In connection with the preparation of this annual report on Form 20-F, we carried out an evaluation of the effectiveness of our disclosure controls and procedures,
which is defined in Rules 13a-15(e) of the Exchange Act, as of the period covered by this annual report.

Based on this evaluation, our chief executive officer and chief financial officer concluded that, as of December 31, 2020, our disclosure controls and procedures
were effective in ensuring that the information required to be disclosed by us in the reports that we file or submit under the Exchange Act was recorded, processed,
summarized and reported, within the time periods specified in the SEC’s rules and forms, and that the information required to be disclosed by us in the reports that
we file or submit under the Exchange Act is accumulated and communicated to our management, including our chief executive officer and chief financial officer, to
allow timely decisions regarding required disclosure.

Management’s Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, which is defined in Rules 13a-15(f) and 15d-
15(f) of the Exchange Act. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial
reporting and the preparation and fair presentation of the consolidated financial statements for external

85

 
 
 
 
purposes  in  accordance  with  accounting  principles  generally  accepted  in  the  United  States  and  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  a  company’s  assets,  (ii)  provide  reasonable
assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with generally accepted accounting
principles,  and  that  a  company’s  receipts  and  expenditures  are  made  only  in  accordance  with  authorization  of  a  company’s  management  and  directors,  and  (iii)
provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use  or  disposition  of  a  company’s  assets  that  could  have  a
material effect on the consolidated financial statements.

Our management conducted an assessment of the effectiveness of our internal control over financial reporting as of December 31, 2020. In making this assessment,
we used the criteria established within the Internal Control —Integrated Framework (2013 Framework) issued by the Committee of Sponsoring Organizations of
the Treadway Commission. This evaluation included a review of the documentation of controls, an evaluation of the design effectiveness of controls, the testing of
the operating effectiveness of controls and a conclusion on this evaluation. All internal control systems, no matter how well designed, have inherent limitations.
Even  those  systems  determined  to  be  effective  may  not  prevent  or  detect  misstatements  and  can  provide  only  reasonable  assurance  with  respect  to  financial
statement  preparation  and  presentation.  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. A material weakness is a deficiency,
or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement to our annual or
interim financial statements will not be prevented or detected on a timely basis.

Based on our evaluation, our management has concluded that our internal control over financial reporting was effective as of December 31, 2020.

Marcum Bernstein & Pinchuk LLP, an independent registered public accounting firm that audited our financial statements included in this annual report, has issued
an attestation report on the effectiveness of our internal control over financial reporting as of December 31, 2020.

Attestation Report of the Registered Public Accounting Firm

The attestation report issued by Marcum Bernstein & Pinchuk LLP, our independent registered public accounting firm, on the effectiveness of internal control over
financial reporting can be found on page F-4 of this annual report.

Changes in Internal Control over Financial Reporting

As  required  by  Rule  13a-15(d),  under  the  Exchange  Act,  our  management,  including  our  chief  executive  officer  and  chief  financial  officer,  has  conducted  an
evaluation of our internal control over financial reporting to determine whether any changes occurred during the period covered since last report have materially
affected, or are reasonably likely to materially affect, our internal control over financial reporting. Based on this evaluation, it has been determined that there has
been no change during the period covered by this annual report.

ITEM 16A.AUDIT COMMITTEE FINANCIAL EXPERT

Our board of directors has determined that we have at least one audit committee financial expert serving on our audit committee. Our audit committee financial
expert  is  Mr.  Simon  Anderson.  Each  member  of  our  audit  committee,  including  Mr.  Anderson,  satisfies  the  “independence”  requirements  of  the  NASDAQ
Marketplace rule and Rule 10A-3 under the Exchange Act.

ITEM 16B.CODE OF ETHICS

Our board of directors has adopted a code of business conduct and ethics that applies to our directors, officers, employees and agents, including certain provisions
that specifically apply to our chief executive officer, chief financial officer, vice presidents and any other persons who perform similar functions for us. We have
filed our code of business conduct and ethics as an exhibit our annual report on Form 20-F (file no. 001-32371) filed with the SEC on July 14, 2006, and posted the
code on our website at www.sinovac.com. We hereby undertake to provide to any person without charge, a copy of our code of business conduct and ethics within
ten working days after we receive such person’s written request.

ITEM 16C.PRINCIPAL ACCOUNTANT FEES AND SERVICES

The following table sets forth the aggregate fees by categories specified below in connection with certain professional services rendered by Marcum Bernstein &
Pinchuk LLP, for the periods indicated below.

Audit fees(1)
Audited-related fees(2)
Tax fees(3)
All other fees(4)

2020

2019

$0.9 million   
—   
—   
—   

$1.1 million 
— 
— 
— 

(1) “Audit fees” means the aggregate fees billed in each of the fiscal years listed for professional services rendered by our principal auditors for the audit of our
annual financial statements included in our annual reports on Form 20-F or services that are normally provided by accountants in connection with statutory
and regulatory engagements for those fiscal years.

86

 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
(2) “Audit-related fees” means the aggregate fees billed in each of the fiscal years listed for assurance and related services rendered by our principal auditors that

are reasonably related to the performance of the audit of our financial statements and are not reported under “Audit fees.”

(3) “Tax fees” means the aggregate fees billed in each of the fiscal years listed for professional services rendered by our principal auditors for tax compliance, tax

advice, and tax planning.

(4) “All other fees” means the aggregate fees billed in each of the fiscal years listed for products and services provided by our principal accountant, other than the

services reported in the other categories.

Before our independent auditors are engaged to render any services, the terms and fees of the engagement are reviewed by the audit committee before our audit
committee grants approval. All services as described above have been approved by our audit committee.

ITEM 16D.EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES

None.

ITEM 16E.PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

None.

ITEM 16F.CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT

None.

ITEM 16G.CORPORATE GOVERNANCE

NASDAQ Stock Market Rule 5620 requires each issuer to hold an annual meeting of shareholders no later than one year after the end of the issuer’s fiscal year-
end. However, NASDAQ Stock Market Rule 5615(a)(3) permits foreign private issuers like us to follow “home country practice” in certain corporate governance
matters. We did not have an annual meeting of shareholders in 2020 and 2019 and held an annual meeting of shareholders on February 6, 2018. Dentons (formerly
known as Delany Law), our Antigua and Barbuda counsel, has provided a letter to the NASDAQ Global Select Market certifying that our current practice relating
to the annual meeting of shareholders will not breach our Articles of Incorporation and By-laws nor any applicable law in Antigua and Barbuda.

Other than the annual meeting practice described above, there are no significant differences between our corporate governance practices and those followed by U.S.
domestic companies under NASDAQ Stock Market Rules.

ITEM 16H.MINE SAFETY DISCLOSURE

Not applicable.

PART III

ITEM 17.FINANCIAL STATEMENTS

We have elected to provide financial statements pursuant to Item 18.

ITEM 18.FINANCIAL STATEMENTS

The consolidated financial statements of our company are included at the end of this annual report.

ITEM 19.EXHIBITS

Exhibit
Number

    1.1

    1.2

    1.3

    1.4

Description of Document

  Articles of Incorporation and By-laws, as amended on March 21, 2006 and July 14, 2011 (incorporated by reference to Exhibit 1.1 from our annual

report on Form 20-F (file no. 001-32371) filed with the Securities and Exchange Commission on April 12, 2012)

  Certificate of Designations of Series A Junior Participating Preferred Shares (incorporated by reference to Exhibit A to Exhibit 4.1 from our Current

Report on Form 6-K (file no. 001-32371) filed with the Securities and Exchange Commission on March 29, 2016)

  Certificate of Designations of Series B Convertible Preferred Shares (incorporated by reference to Exhibit 3.2 from our Registration Statement on

Form 8-A (file no. 000-29031) filed with the Securities and Exchange Commission on February 22, 2019)

  Certificate of Designations of Series C Junior Participating Preferred Shares (incorporated by reference to Exhibit 99.7 from our Current Report on

Form 6-K (file no. 001-32371) filed with the Securities and Exchange Commission on February 22, 2019)

    2.1*

  Specimen of Common Share Certificate

87

 
 
 
 
   
    2.2*
    2.3*
    4.1

    4.2

    4.3

    4.4

    4.5

    4.6

    4.7

    4.8

    4.9

  Specimen of Series B Convertible Preferred Shares
  Description of Rights of Each Class of Securities Registered under Section 12 of the Securities Exchange Act of 1934
  Translation of a Lease between Sinovac Beijing and SinoBioway related to a building of approximately 28,000 square feet, dated August 12, 2004
(incorporated  by  reference  to  Exhibit  4.1  from  our  annual  report  on  Form  20-F  (file  no.  001-32371)  filed  with  the  Securities  and  Exchange
Commission on July 14, 2006)

  Translation of a Lease between Sinovac Beijing and SinoBioway related to a building of approximately 13,300 square feet, dated August 12, 2004
(incorporated  by  reference  to  Exhibit  4.2  from  our  annual  report  on  Form  20-F  (file  no.  001-32371)  filed  with  the  Securities  and  Exchange
Commission on July 14, 2006)

  Translation of a Supplement Agreement to the Leases between Sinovac Beijing and SinoBioway (incorporated by reference to Exhibit 4.3 from our

annual report on Form 20-F (file no. 001-32371) filed with the Securities and Exchange Commission on July 14, 2006)

  Translation of a Supplemental Agreement, dated August 12, 2010, to a Lease Contract between Sinovac Beijing and SinoBioway, dated August 12,
2004 (incorporated by reference to Exhibit 4.18 from our annual report on Form 20-F (file no. 001-32371) filed with the Securities and Exchange
Commission on April 30, 2013)

  Translation of a Supplemental Agreement, dated April 8, 2013, to a Lease Contract between Sinovac Beijing and SinoBioway, dated August 12,
2004 (incorporated by reference to Exhibit 4.16 from our annual report on Form 20-F (file no. 001-32371) filed with the Securities and Exchange
Commission on April 30, 2013)

  Translation  of  a  Lease  between  Sinovac  Beijing  and  SinoBioway  related  to  buildings  of  approximately  37,000  square  feet,  dated  June  4,  2007
(incorporated  by  reference  to  Exhibit  4.8  from  our  annual  report  on  Form  20-F  (file  no.  001-32371)  filed  with  the  Securities  and  Exchange
Commission on March 31, 2008)

  Translation of a Supplemental Agreement, dated April 8, 2013, to a Lease Contract between Sinovac Beijing and SinoBioway, dated June 4, 2007
(incorporated  by  reference  to  Exhibit  4.17  from  our  annual  report  on  Form  20-F  (file  no.  001-32371)  filed  with  the  Securities  and  Exchange
Commission on April 30, 2013)

  Stock  Option  Plan  adopted  on  November  1,  2003  (incorporated  by  reference  to  Exhibit  4.4  from  our  annual  report  on  Form  20-F  (file  no.  001-

32371) filed with the Securities and Exchange Commission on July 14, 2006)

  2012 Share Incentive Plan adopted on August 22, 2012 (incorporated by reference to Exhibit 4.15 from our annual report on Form 20-F (file no.

001-32371) filed with the Securities and Exchange Commission on April 30, 2013)

    4.10

  Form of Employment Agreement between the Registrant and Officers (incorporated by reference to Exhibit 4.5 from our annual report on Form 20-

F (file no. 001-32371) filed with the Securities and Exchange Commission on May 11, 2018)

    4.11

    4.12

    4.13

    4.14

    4.15

    4.16

    4.17

    4.18

    4.19

    4.20

  Translation of Form of Employment Agreement between the Registrant or its subsidiary and any other senior executive officers of the Registrant or
its subsidiary (incorporated by reference to Exhibit 4.11 from our annual report on Form 20-F (file no. 001-32371) filed with the Securities and
Exchange Commission on April 29, 2019)

  Form  of  Non-disclosure,  Non-competition  and  Proprietary  Information  Agreement  between  the  Registrant  or  its  subsidiary  and  any  other  senior
executive officers of the Registrant or its subsidiary (incorporated by reference to Exhibit 4.7 from our annual report on Form 20-F (file no. 001-
32371) filed with the Securities and Exchange Commission on July 14, 2006)

  Form of Director Indemnification Agreements (incorporated by reference to Exhibit 4.13 from our annual report on Form 20-F (file no. 001-32371)

filed with the Securities and Exchange Commission on April 29, 2019)

  Securities Purchase Agreement dated as of July 2, 2018, between Sinovac Biotech Ltd., Vivo Capital, LLC and Prime Success, L.P. (incorporated by
reference to Exhibit 99.2 from our current report on Form 6-K (file no. 001-32371) filed with the Securities and Exchange Commission on July 3,
2018)

  Registration  Rights  Agreement  dated  as  of  July  2,  2018,  between  Sinovac  Biotech  Ltd.,  and  Vivo  Capital,  LLC  and  Prime  Success,  L.P.
(incorporated  by  reference  to  Exhibit  99.3  from  our  current  report  on  Form  6-K  (file  no.  001-32371)  filed  with  the  Securities  and  Exchange
Commission on July 3, 2018)

  Shareholders Agreement dated as of July 2, 2018, between Sinovac Biotech Ltd., and Vivo Capital, LLC and Prime Success, L.P. (incorporated by
reference to Exhibit 99.4 from our current report on Form 6-K (file no. 001-32371) filed with the Securities and Exchange Commission on July 3,
2018)

  Form of Director Confidentiality Agreement (incorporated by reference to Exhibit 99.8 from our current report on Form 6-K (file no. 001-32371)

filed with the Securities and Exchange Commission on July 3, 2018)

  Trust  Agreement  dated  as  of  February  20,  2019  between  Sinovac  Biotech  Ltd.  and  Wilmington  Trust,  National  Association  (incorporated  by
reference to Exhibit 99.2 from our current report on Form 6-K (file no. 001-32371) filed with the Securities and Exchange Commission on February
22, 2019)

  Amended and Restated Rights Agreement, dated as of February 22, 2019, between Sinovac Biotech Ltd. and Pacific Stock Transfer Company, as
Rights  Agent  (incorporated  by  reference  to  Exhibit  99.6  from  our  current  report  on  Form  6-K  (file  no.  001-32371)  filed  with  the  Securities  and
Exchange Commission on February 22, 2019)

  Amendment to Amended and Restated Rights Agreement, dated as of February 19, 2020, between Sinovac Biotech Ltd. and Pacific Stock Transfer
Company, as Rights Agent (incorporated herein by reference to Exhibit 4.1 from our current report on Form 6-K (file no. 001-32371) filed with the
Securities and Exchange Commission on February 21, 2020)

    4.21*
    8.1*

  Shareholders’ Agreement dated December 4, 2020
  List of Subsidiaries

88

 
  11.1

  Code of Business Conduct and Ethics (incorporated by reference to Exhibit 11.1 from our annual report on Form 20-F (file no. 001-32371) filed

  12.1*
  12.2*
  13.1**
  13.2**
  15.1*
  101.INS*

with the Securities and Exchange Commission on July 14, 2006)

  CEO Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
  CFO Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
  CEO Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
  CFO Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
  Consent of Marcum Bernstein & Pinchuk LLP

Inline XBRL Instance Document—this instance document does not appear in the Interactive Data File because its XBRL tags embedded within the
Inline XBRL document

  101.SCH*    Inline XBRL Taxonomy Extension Schema Document
  101.CAL*    Inline XBRL Taxonomy Extension Calculation Linkbase Document
  101.DEF*    Inline XBRL Taxonomy Extension Definition Linkbase Document
  101.LAB*    Inline XBRL Taxonomy Extension Label Linkbase Document
  101.PRE*    Inline XBRL Taxonomy Extension Presentation Linkbase Document
  104

   Cover Page Interactive Data File (embedded within the Inline XBRL document)

*
**

  Filed with this annual report on Form 20-F
  Furnished with this annual report on Form 20-F

89

 
  
 
   
 
 
The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this
annual report on its behalf.

SIGNATURES

Date: April 22, 2021

Sinovac Biotech Ltd.

By:

/s/ Weidong Yin
Name: Weidong Yin
Title: Chairman and Chief Executive Officer

90

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.

CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in thousands of U.S. dollars, unless otherwise stated)

December 31, 2020 and 2019

F-1

 
 
 
Index

Reports of Independent Registered Public Accounting Firm –Marcum Bernstein & Pinchuk LLP

Consolidated Balance Sheets

Consolidated Statements of Comprehensive Income

Consolidated Statements of Shareholders’ Equity

Consolidated Statements of Cash Flows

Notes to Consolidated Financial Statements

F-2

F-3

F-6

F-7

F-8

F-11

F-12

 
 
 
 
 
 
 
 
 
 
 
 
 
To the Shareholders and Board of Directors of Sinovac Biotech Ltd.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Opinion on the Financial Statements
We  have  audited  the  accompanying  consolidated  balance  sheets  of  Sinovac  Biotech  Ltd.  (the  “Company”)  as  of  December  31,  2020  and  2019,  the  related
consolidated statements of comprehensive income, shareholders’ equity and cash flows for each of the three years in the period ended December 31, 2020, and the
related notes (collectively referred to as the “financial statements”).  In our opinion, the financial statements present fairly, in all material respects, the financial
position of the Company as of December 31, 2020 and 2019, and the results of its operations and its cash flows for each of the three years in the period ended
December 31, 2020, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"), the Company's internal
control over financial reporting as of December 31, 2020, based on the criteria established in Internal Control - Integrated Framework issued by the Committee of
Sponsoring Organizations of the Treadway Commission (COSO) in 2013 and our report dated April 22, 2021, expressed an unqualified opinion on the effectiveness
of the Company’s internal control over financial reporting.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements
based on our audits. We are a public accounting firm registered with the 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 financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to
assess the risks of material misstatement of the 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 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 financial statements. We believe
that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to
be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially
challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken
as  a  whole,  and  we  are  not,  by  communicating  the  critical  audit  matters  below,  providing  separate  opinions  on  the  critical  audit  matters  or  on  the  accounts  or
disclosures to which they relate.

Ongoing litigation

Description of the Matter

As described in Note 17(c) and Note 21 to the financial statements, there are series of ongoing litigations between the Company and 1Globe, and certain other
minority shareholders. The Company’s board of directors determined that those shareholders became “Acquiring Person”, and their conduct resulted in a “Trigger
Event” under the Company’s Rights Agreement. As a result, 27,777,341 new common shares and 14,630,813 preferred shares of the Company were issued into a
trust for the benefit of the holders of the valid and outstanding rights. 1Globe filed an amended answer to the Company’s complaint, counterclaims, and a third-
party complaint alleging, among other allegations, that the Rights Agreement is not valid, and that 1Globe did not trigger the Rights Agreement. Releasing these
shares from the trust is contingent on the outcome from the Company’s legal proceeding in Antigua. 1Globe’s appeal of the Antigua Court’s Judgment was heard on
September  18,  2019,  and  the  appeal  decision  is  pending  as  of  the  date  of  this  annual  report.  The  Company  cannot  predict  or  estimate  an  outcome  or  economic
burden for this case at this time.

This significant unusual situation is a critical audit matter as it relates to a material disclosure of contingencies and calculation of earnings per shares, and involved
subjective and complex auditor judgement.

How we Addressed the Matter in Our Audit

Our principal audit procedures included, amongst others:

F-3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•  Obtaining  an  understanding,  and  evaluating  the  design,  and  testing  the  operating  effectiveness  of  management  controls  with  regards  to  the  ongoing  litigation
review, assessment on the impact to financial reporting and disclosure.
• Obtaining an understanding of the progress of above matter with management and reviewing the relevant litigation documents.
• Obtaining written confirmation from the Company’s legal counsel to confirm the status of the litigation.
• Reviewing the relevant disclosures to the financial statements.

/s/ Marcum Bernstein & Pinchuk LLP

Marcum Bernstein & Pinchuk LLP

We have served as the Company’s auditor since 2019.

Beijing, China
April 22, 2021

F-4

 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON INTERNAL CONTROL OVER FINANCIAL REPORTING

To the Shareholders and Board of Directors of Sinovac Biotech Ltd.

Opinion on Internal Control over Financial Reporting

We have audited Sinovac Biotech Ltd.'s (the “Company”) internal control over financial reporting as of December 31, 2020, based on criteria established in Internal
Control-Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission.  In  our  opinion,  the  Company
maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control –
Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated balance
sheets as of December 31, 2020 and 2019 and the related consolidated statements of comprehensive income, shareholders’ equity, and cash flows and the related
notes for each of the three years in the period ended December 31, 2020 of the Company, and our report dated April 22, 2021 expressed an unqualified opinion on
those financial statements.

Basis for Opinion

The Company's management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal
control over financial reporting, included in the accompanying “Management Annual Report on Internal Control over Financial Reporting”. Our responsibility is to
express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the 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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance
about  whether  effective  internal  control  over  financial  reporting  was  maintained  in  all  material  respects.  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  audit  also  included  performing  such  other  procedures  as  we  considered
necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

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 (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions
and  dispositions  of  the  assets  of  the  company;  (2)  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  (3)  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  the  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 degree of compliance with the
policies or procedures may deteriorate.  

Marcum Bernstein & Pinchuk LLP
Beijing, China
April 22, 2021

F-5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Consolidated Balance Sheets
As of December 31, 2020 and 2019
(Expressed in thousands of U.S. dollars, except for number of shares and per share data)

December 31,
2020

December 31,
2019

ASSETS
Current assets

Cash and cash equivalents
Restricted cash (note 3)
Short-term investment (note 4)
Accounts receivable – net (note 5)
Inventories (note 6)
Prepaid expenses and deposits

Total current assets

Property, plant and equipment – net (note 7)
Prepaid land lease payments (note 8)
Intangible assets - net (note 9)
Long–term prepaid expenses (note 12(b))
Prepayments for acquisition of equipment
Deferred tax assets (note 14)
Right-of-use assets (note 10 and 12(b))

Total assets

LIABILITIES AND EQUITY
Current liabilities

Short-term bank loans and current portion of long-term bank loans (note 11)
Loan from a non-controlling shareholder (note 12 (a))
Accounts payable and accrued liabilities (note 13)
Income tax payable
Deferred revenue (note 15)
Deferred government grants (note 16)
Dividend payable (note 18)
Lease liability (note 10 and 12(b))

Total current liabilities

Deferred government grants (note 16)
Long-term bank loans (note 11)
Deferred tax liability
Loan from a non-controlling shareholder (note 12 (a))
Lease liability (note 10 and 12(b))
Other non-current liabilities (note 14)

Total long-term liabilities
Total liabilities
Commitments and contingencies (notes 17 and 23)
EQUITY

Preferred stock (note 18)
Authorized 50,000,000 shares at par value of $0.001 each
Issued and outstanding: 14,630,813, including 14,630,813 held in trust (2019 – 14,630,813, 14,630,813)
Common stock (note 18)
Authorized: 100,000,000 shares at par value of $0.001 each
Issued and outstanding: 99,294,743, including 27,777,341 held in trust (2019 – 98,903,243, 27,777,341)
Additional paid-in capital
Subscriptions receivable
Accumulated other comprehensive income (loss)
Statutory surplus reserves (note 20)
Accumulated earnings
Total shareholders' equity
Non-controlling interests
Total equity
Total liabilities and equity

The accompanying notes are an integral part of these consolidated financial statements.

F-6

$

$

$

$

$

$

$

1,041,008   
9,196   
135,248   
253,487   
105,813   
15,541   
1,560,293   
200,371   
8,247   
1,474   
25   
20,192   
26,891   
83,833   
1,901,326   

32,941   
6,155   
211,428   
35,262   
364,005   
15,159   
11,143   
3,517   
679,610   
4,229   
2,155   
2,724   
6,130   
85,488   
865   
101,591   
781,201   

15   

99   

538,924   
(7,109)  
19,925   
50,377   
144,241   
746,472   
373,653   
1,120,125   
1,901,326   

$

152,718 
3,160 
50,274 
113,736 
27,846 
1,873 
349,607 
74,310 
7,965 
— 
23 
2,390 
11,368 
6,636 
452,299 

5,934 
6,607 
58,890 
1,904 
5,462 
2,738 
5,128 
536 
87,199 
3,986 
— 
— 
1,436 
5,758 
1,725 
12,905 
100,104 

15 

99 

207,962 
— 
(4,321)
33,533 
56,731 
294,019 
58,176 
352,195 
452,299 

 
 
 
 
   
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Consolidated Statements of Comprehensive Income
For the years ended December 31, 2020, 2019 and 2018
(Expressed in thousands of U.S. Dollars, except for number of shares and per share data)

Sales (note 22)
Cost of sales
Gross profit
Selling, general and administrative expenses (including rent expenses incurred
   to a related party of 2020 - $798, 2019 - $811, 2018 - $810) (note 12(b))
Provision (recovery) for doubtful accounts
Research and development expenses
Loss on disposal of property, plant and equipment (note 7)
Government grants recognized in income
Total operating expenses
Operating income
Interest and financing expenses – (including interest expenses incurred
   to a related party, 2020 - $663, 2019 - $455, 2018 - $453) (note 12(a))
Interest income
Other income, net
Income before income taxes
Income tax expense (note 14)
Net income
Less: Income attributable to non-controlling interests
Net income attributable to shareholders of Sinovac
Preferred stock dividends
Net income attributable to common shareholders of Sinovac
Net income
Other comprehensive income, net of tax of nil
Foreign currency translation adjustments
Comprehensive income
Less: comprehensive income attributable to non-controlling interests
Comprehensive income attributable to shareholders of Sinovac
Earnings per share (note 21)
Basic net income per share
Diluted net income per share
Weighted average number of shares of common stock outstanding
– Basic
– Diluted

The accompanying notes are an integral part of these consolidated financial statements.

F-7

2020

For the year ended December 31
2019

2018

  $

510,624    $
67,180   
443,444   

246,053    $
32,469   
213,584   

176,534   
2,640   
48,760   
163   
(297)  
227,800   
215,644   

(1,453)  
1,930   
496   
216,617   
(31,438)  
185,179   
(74,810)  
110,369   
(6,015)  
104,354    $
185,179   

32,328   
217,507   
(82,892)  
134,615   

1.06   
0.97   

121,468   
(306)  
24,254   
294   
(688)  
145,022   
68,562   

(650)  
1,996   
912   
70,820   
(5,605)  
65,215   
(20,286)  
44,929   
(5,128)  
39,801    $
65,215   

(2,827)  
62,388   
(19,681)  
42,707   

0.42   
0.41   

  $

229,650 
24,723 
204,927 

137,003 
820 
21,910 
75 
(197)
159,611 
45,316 

(1,070)
2,016 
321 
46,583 
(10,472)
36,111 
(14,329)
21,782 
— 
21,782 
36,111 

(10,996)
25,115 
(12,507)
12,608 

0.34 
0.34 

98,897,345   
113,662,362   

94,876,946   
109,691,959   

64,727,146 
64,977,554 

 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Consolidated Statements of Shareholders’ Equity
For the years ended December 31, 2020, 2019 and 2018
(Expressed in thousands of U.S. dollars, expect number of shares data)

Accumulated
other
comprehensive
income
(foreign
currency
translation    

    Additional   
paid-in    
capital
115,339    $
4,305     
3     
64     

57     
—     
—     
—     

    57,281,861    $
—     
109,041     
—     

Common stock

Shares

    Amount    

    adjustment)

    Statutory    Accumulated   

Total

Non-

surplus    
    reserves    

(deficit)
earnings

    shareholders’    controlling    Total

equity

interests    

7,075    $ 19,549    $
—     
—     
—     

—     
—     
—     

9,132    $
—     
—     
—     

151,152    $
4,305     
3     
64     

equity  
25,988    $ 177,140 
4,305 
3 
64 

—     
—     
—     

(51,500)    

—     

—     

—     

—     

    13,800,000     
—     

14     
—     

85,287     
—     

—     
—     

—     
—     

—     

—     

—     

—     

—     

—     
—     

—     
—     

—     
—     

(9,174)    
—     

—     
—     

—     

—     

—     

—     

—     

—     

—     
—     

—     

—     
—     

—     

—     

—     

— 

85,301     
—     

—      85,301 
— 
—     

—     

(1,822)    

(1,822)

(9,174)    
—     

—     
—     

(9,174)
— 

—     

14,329      14,329 

—     

—     

—     

—     

—     

21,782     

21,782     

—      21,782 

—     
    71,139,402    $

—     
—     
71    $ 204,998    $

—     

7,094     
(2,099)   $ 26,643    $

(7,094)    
23,820    $

—     
253,433    $

—     

— 
38,495    $ 291,928 

Balance, December 31, 2017
Share-based compensation (note 19)
Exercise of stock options (note 18)
Subscriptions received (note 18)
Cancellation of outstanding shares (note
18)
Issuance of new and restricted shares
(note 18)
Other comprehensive income
- Other comprehensive loss attributable to
   non-controlling interests
- Other comprehensive loss attributable
   to shareholders of Sinovac
Net income for the year
-Net income attributable to non-
controlling interests
- Net income attributable to shareholders
of Sinovac
- Transfer to statutory surplus reserves
(note 19)
Balance, December 31, 2018

The accompanying notes are an integral part of these consolidated financial statements

F-8

 
 
 
   
 
     
 
   
     
 
 
 
 
   
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
 
SINOVAC BIOTECH LTD.
Consolidated Statements of Shareholders’ Equity
For the years ended December 31, 2020, 2019 and 2018
(Expressed in thousands of U.S. dollars, expect number of shares data)

Additional

Common stock

Shares

    Amount   

Preferred stock
Shares

    Amount   

paid-in    
capital

Accumulated
other
comprehensive
loss
(foreign
currency
translation    

Statutory
surplus     Accumulated   

    adjustment)

    reserves    

earnings

Total
shareholders’   
equity

Non-

controlling    Total
interests     equity  

Balance, December
31, 2018
Share-based
compensation (note
19)
Exercise of stock
options (note 18)
Cancellation of
outstanding shares
(note 18)
Issuance of new shares
(note 18)
Dividend accrued (note
18)
Other comprehensive
loss
- Other comprehensive
loss attributable to
non-controlling
interests
- Other comprehensive
loss attributable to
shareholders of
Sinovac
Net income for the
year
-Net income
attributable to non-
controlling interests
- Net income
attributable to
shareholders of
Sinovac
- Transfer to statutory
surplus reserves (note
20)
Balance, December
31, 2019

    71,139,402    $

71     

—    $

—    $ 204,998    $

(2,099)   $ 26,643    $

23,820    $

253,433    $

38,495    $ 291,928 

—     

—     

—     

—     

3,003     

—     

—     

—     

3,003     

—     

3,003 

13,500     

—     

—     

—     

4     

—     

—     

—     

4     

—     

4 

(27,000)    

—     

—     

—     

—     

—     

—     

    27,777,341     

28      14,630,813     

15     

(43)    

—     

—     

—     

—     

—     

—     

—     

—     

— 

— 

—     

—     

—     

—     

—     

—     

—     

(5,128)    

(5,128)    

—     

(5,128)

—     

—     

—     

—     

—     

—     

—     

—     

—     

—     

— 

—     

—     

—     

—     

—     

—     

—     

—     

—     

(605)    

(605)

—     

—     

—     

—     

—     

(2,222)    

—     

—     

(2,222)    

—     

(2,222)

—     

—     

—     

—     

—     

—     

—     

—     

—     

—     

— 

—     

—     

—     

—     

—     

—     

—     

—     

—     

20,286      20,286 

—     

—     

—     

—     

—     

—     

—     

44,929     

44,929     

—      44,929 

—     

—     

—     

—     

—     

—     

6,890     

(6,890)    

—     

—     

— 

    98,903,243    $

99      14,630,813    $

15    $ 207,962    $

(4,321)   $ 33,533    $

56,731    $

294,019    $

58,176    $ 352,195 

The accompanying notes are an integral part of these consolidated financial statements

F-9

 
 
 
   
 
     
 
     
 
     
 
     
 
   
     
 
     
 
     
 
     
 
     
 
 
 
 
   
   
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
 
SINOVAC BIOTECH LTD.
Consolidated Statements of Shareholders’ Equity
For the years ended December 31, 2020, 2019 and 2018
(Expressed in thousands of U.S. dollars, expect number of shares data)

Additional

Accumulated
other
comprehensive
income (loss)
(foreign
currency
translation    

Statutory
surplus   Accumulated   

Common stock

Preferred stock

  Shares

   Amount   Shares

  Amount  

paid-in   Subscriptions   
capital

   receivable     adjustment)

    reserves   

earnings

Total
shareholders’   
equity

Non-

controlling    Total
equity
interests    

Balance,
December 31,
2019
Share-based
compensation
(note 19)
Exercise of
stock options
(note 18)
Subscriptions
receivable
Cancellation
of outstanding
shares (note
18)
Equity
transactions of
subsidiaries
(note 1)
Dividend
accrued (note
18)
Other
comprehensive
income
- Other
comprehensive
income
attributable to
non-
controlling
interests
- Other
comprehensive
income
attributable to
shareholders
of Sinovac
Net income for
the year
-Net income
attributable to
non-
controlling
interests
- Net income
attributable to
shareholders
of Sinovac
- Transfer to
statutory
surplus
reserves (note
20)
Balance,
December 31,
2020

  98,903,243   $

99   14,630,813  $

15  $ 207,962  $

—   $

(4,321) $ 33,533  $

56,731   $

294,019   $

58,176   $ 352,195 

—    

—   

—   

—   

10,203   

—    

—    

—   

—    

10,203    

—    

10,203 

401,500    

—   

—   

—   

9,108   

—    

—    

—   

—    

9,108    

4,891    

13,999 

—    

—   

—   

—   

—   

(7,109)  

—    

—   

—    

(7,109)  

(4,891)  

(12,000)

(10,000)  

—   

—   

—   

—   

—    

—    

—   

—    

—    

—    

— 

—    

—   

—   

—   

311,651   

—    

—    

—   

—    

311,651    

232,585    

544,236 

—    

—   

—   

—   

—   

—    

—    

—   

(6,015)  

(6,015)  

—    

(6,015)

—    

—   

—   

—   

—   

—    

—    

—   

—    

—    

—    

— 

—    

—   

—   

—   

—   

—    

—    

—   

—    

—    

8,082    

8,082 

—    

—   

—   

—   

—    

—   

—   

—   

—   

—   

—    

—    

24,246    

—   

—    

24,246    

—    

24,246 

—    

—   

—    

—    

—    

— 

—    

—   

—   

—   

—   

—    

—    

—   

—    

—    

74,810    

74,810 

—    

—   

—   

—   

—   

—    

—    

—   

110,369    

110,369    

—    

110,369 

—    

—   

—   

—   

—   

—    

—     16,844   

(16,844)  

—    

—    

— 

  99,294,743   $

99   14,630,813  $

15  $ 538,924  $

(7,109) $

19,925   $ 50,377  $

144,241   $

746,472   $ 373,653   $1,120,125 

The accompanying notes are an integral part of these consolidated financial statements.

F-10

 
 
 
  
 
    
 
   
 
   
 
   
 
   
 
   
    
 
   
 
    
 
    
 
    
 
 
 
 
  
  
 
 
   
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
SINOVAC BIOTECH LTD.
Consolidated Statements of Cash Flows
For the years ended December 31, 2020, 2019 and 2018
(Expressed in thousands of U.S. dollars)

Cash flows provided by operating activities
Net Income
Adjustments to reconcile net income to net cash provided by operating activities:
- Deferred income taxes (note 14)
- Share-based compensation (note 19)
- Inventory provision (note 6)
- Provision (recovery) for doubtful accounts
- Loss on disposal of property, plant and equipment (note 7)
- Depreciation of property, plant and equipment and amortization of licenses (note 7)
- Amortization of prepaid land lease payments (note 8)
- Amortization of intangible assets (note 9)
- Government grants recognized in income
Changes in:
- Accounts receivable
- Inventories
- Income tax payable
- Prepaid expenses and deposits
- Deferred revenue
- Accounts payable and accrued liabilities
- Other non-current liabilities
Net cash provided by operating activities
Cash flows provided by financing activities
- Proceeds from bank loans
- Repayments of bank loans
- Proceeds from issuance of common stock, net of share issuance costs
- Proceeds from shares subscribed
- Proceeds from subsidiary's financing
- Government grants received (note 16)
- Loan from a non-controlling shareholder (note 12(a))
- Repayments of loan from a non-controlling shareholder (note 12(a))
Net cash provided by financing activities
Cash flows used in investing activities
- Purchase of short-term investments
- Proceeds from redemption of short-term investments
- Proceeds from disposal of equipment
- Acquisition of property, plant and equipment
- Acquisition of intangible assets
Net cash used in investing activities
Effect of exchange rate changes on cash and cash equivalents and restricted cash
Increase (decrease) in cash and cash equivalents and restricted cash
Cash and cash equivalents and restricted cash, beginning of year
Cash and cash equivalents and restricted cash, end of year

Supplemental disclosure of cash flow information:
Cash paid for interest
Cash paid for income taxes

The accompanying notes are an integral part of these consolidated financial statements

F-11

2020

For the year ended December 31
2019

2018

  $

185,179    $

65,215    $

36,111 

(11,227)  
10,203   
5,816   
2,640   
163   
3,693   
238   
106   
(297)  

(128,016)  
(77,738)  
31,804   
(13,151)  
339,329   
131,777   
(1,210)  
479,309   

33,227   
(6,041)  
1,999   
—   
541,043   
16,521   
10,162   
(4,345)  
592,566   

(201,688)  
124,562   
20   
(127,486)  
(164)  
(204,756)  
27,207   
894,326   
155,878   
1,050,204    $

1,041    $
11,172    $

(5,685)  
3,003   
651   
(306)  
294   
4,579   
238   
—   
(688)  

(40,191)  
(3,651)  
4,904   
2,645   
2,521   
6,793   
(1,248)  
39,074   

2,109   
(3,305)  
—   
—   
—   
1,476   
1,457   
—   
1,737   

(50,665)  
18,818   
21   
(10,628)  
—   
(42,454)  
(649)  
(2,292)  
158,170   
155,878    $

717    $
7,307    $

3,146 
4,305 
2,529 
820 
75 
4,887 
249 
— 
(197)

(13,082)
(9,412)
(11,844)
(2,613)
(892)
(6,167)
28 
7,943 

18,898 
(43,886)
85,304 
64 
— 
3,800 
— 
— 
64,180 

(19,670)
— 
22 
(5,613)
— 
(25,261)
(4,656)
42,206 
115,964 
158,170 

1,494 
19,151 

  $

  $
  $

 
 
 
 
 
 
 
   
   
 
 
 
    
 
    
 
  
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

1.

Basis of Presentation

These  consolidated  financial  statements  have  been  prepared  in  accordance  with  accounting  principles  generally  accepted  in  the  United  States  (“US
GAAP”). They include the accounts of Sinovac Biotech Ltd., which is incorporated under the laws of Antigua and Barbuda, and its wholly owned or
controlled  subsidiaries  (collectively,  the  “Company”).  All  significant  intercompany  transactions  have  been  eliminated.  Details  of  the  Company’s
subsidiaries are as follows:

Date of
incorporation or
establishment

Place of
incorporation
(or
establishment)
/operation

Percentage of
ownership
as of
December
31, 2020

Percentage of
ownership
as of
December
31, 2019

  Principal activities

  October 2008  

Hong Kong

100%  

100%  

People’s
Republic of
China (“PRC”)  

April 2001

73.09%  

73.09%  

May 2009

PRC

59.24%  

100%  

January 2010  

April 2015

PRC

PRC

68%  

100%  

67.86%  

100%  

International sales
  and marketing
Research and
  development,
  production and
  sales of
  vaccine
  products
Research and
  development,
  production and
  sales of
  vaccine
  products
Research and
  development,
  production and
  sales of
  vaccine
  products
Distribution of
  vaccine products

August 2020

Singapore

100%  

International sales
  and marketing

— 

Name

Sinovac Biotech
  (Hong Kong) Limited
  (“Sinovac Hong Kong”)
Sinovac Biotech Co.,
  Ltd. (“Sinovac Beijing”)

Sinovac Life Sciences
  Co., Ltd. (“Sinovac LS”)
  (formerly Sinovac
  Research & Development
  Co., Ltd.) *

Sinovac (Dalian) Vaccine
  Technology Co., Ltd.
  (“Sinovac Dalian”) **

Sinovac Biomed Co., Ltd.

Sinovac Biotech (Singapore)
  Pte. Ltd. ("Sinovac
  Singapore")

*  In  December  2020,  Sinovac  LS  secured  funding  for  further  development,  capacity  expansion  and  manufacturing  of  the  CoronaVac,  its  COVID-19
vaccine candidate. The investor, Sino Biopharmaceutical Limited, a leading innovative research and development driven pharmaceutical conglomerate in
China, through its affiliates invested a total of $527,000 in exchange for 15.38% of the total equity interest of Sinovac LS. Vivo Capital Fund IX, L.P. and
Prime Success, L.P., also exercised each of its right to convert its convertible loan that was issued to the Company in May 2020 with a total of $15,000,
which after the investment by Sino Biopharmaceutical Limited’s affiliates, Vivo Capital Fund IX, L.P. and Prime Success, L.P. each holds 6.345% stake
in  Sinovac  LS.  In  September  2020,  the  board  of  directors  approved  an  employee  share  ownership  plan  where  options  were  granted  to  officers  and
employees of the Company, through Keding Investment (Hong Kong) Limited, to purchase up to 15% of equity interest of Sinovac LS upon exercise of
the options. The options were fully vested and exercised, and after the investment by Sino Biopharmaceutical Limited’s affiliates, Keding Investment
(Hong Kong) Limited holds 12.69% stake in Sinovac LS. Total financing expenses associated with the above transactions was $1,000.
** In November 2020, the Company and Dalian Jin Gang Group, non-controlling shareholder of Sinovac Dalian, each made a capital contribution to
Sinovac Dalian with a total of $6,972 and $3,193, respectively.After this capital contribution, our ownership of Sinovac Dalian increased.

2.

Significant Accounting Policies

(a) Use of Estimates

F-12

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

In  preparation  of  the  Company’s  consolidated  financial  statements,  management  is  required  to  make  estimates  and  assumptions  that  affect  the
reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported
amounts of revenue and expenses during the reporting periods. Significant estimates made by management include: provision for product returns,
allowance for doubtful accounts, inventory provisions, impairment of long-lived assets, fair value of options granted and related forfeiture rates, and
realizability  of  deferred  tax  assets.  On  an  ongoing  basis,  management  reviews  its  estimates  to  ensure  that  these  estimates  appropriately  reflect
changes in the Company’s business and new information as it becomes available. If historical experience and other factors used by management to
make these estimates do not reasonably reflect future activity, the Company’s consolidated financial statements could be materially impacted.

(b) Cash and Cash Equivalents

Cash  equivalents  consist  of  highly  liquid  investments  that  are  readily  convertible  to  cash  generally  with  maturities  of  three  months  or  less  when
purchased.

(c) Restricted Cash

Restricted cash is cash held as collateral for transactions the Company has entered into.

In  November  2016,  the  FASB  issued  Accounting  Standards  Update  No.  2016-18,  Statement  of  Cash  Flows  (Topic  230):  Restricted  Cash,  which
requires  companies  to  include  amounts  generally  described  as  restricted  cash  and  restricted  cash  equivalents  in  cash  and  cash  equivalents  when
reconciling beginning-of-period and end-of-period total amounts presented in the statement of cash flows. The Company adopted the new standard
effective January 1, 2018, using the retrospective transition method.

The ending balance of cash and cash equivalents and restricted cash presented on the face of the consolidated statements of cash flows in 2020 is
$1,050,204 (2019 - $155,878, 2018 - $158,170). It includes $ 1,041,008 cash and cash equivalents (2019 - $ 152,718, 2018 - $158,170) and $9,196
restricted cash (2019 - $3,160, 2018 - $nil) as presented in consolidated balance sheets.

(d) Short-term investments

All  highly  liquid  investments  with  original  maturities  greater  than  three  months,  but  less  than  twelve  months,  are  classified  as  short-term
investments. Investments that are expected to be realized in cash during the next twelve months are also included in short-term investments.

The  Company  accounts  for  short-term  debt  investments  in  accordance  with  ASC  Topic  320,  Investments—Debt  Securities  (“ASC  320”).  The
Company classifies the short-term investments in debt as “held-to-maturity,” “trading” or “available-for-sale,” whose classification determines the
respective accounting methods stipulated by ASC 320. Dividend and interest income, including amortization of the premium and discount arising at
acquisition,  for  all  categories  of  investments  in  securities  are  included  in  earnings.  Any  realized  gains  or  losses  on  the  sale  of  the  short-term
investments are determined on a specific identification method, and such gains and losses are reflected in earnings during the period in which gains
or losses are realized.

(e) Accounts Receivable

The Company extends unsecured credit to its customers in the ordinary course of business and actively pursues past due accounts. On January 1,
2020, the Company adopted Accounting Standards Update (ASU) 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of
Credit Losses on Financial Instruments” (“ASU 2016-13”) which requires the measurement and recognition of expected credit losses for financial
assets held at amortized cost. ASU 2016-13 replaces the existing incurred loss impairment model with an expected loss methodology, which will
result in more timely recognition of credit losses. The Company estimates an allowance for doubtful accounts based on historical experience, the age
of the accounts receivable balances, credit quality of the Company’s customers, current economic conditions and other factors that may affect its
customers’ ability to pay.

(f)

Inventories

Inventories are stated at the lower of cost or net realizable value. The cost of work in progress and finished goods is determined on a weighted-
average cost basis and includes direct material, direct labor and overhead costs. Net realizable value represents the anticipated selling price, net of
distribution cost, less estimated costs to completion for work in progress.

F-13

 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

(g) Property, Plant and Equipment

Property,  plant  and  equipment  are  recorded  at  cost.  Significant  additions  and  improvements  are  capitalized,  while  repairs  and  maintenance  are
charged to expenses as incurred. Equipment purchased for specific research and development projects with no alternative use are expensed. Assets
under  construction  are  not  depreciated  until  construction  is  completed  and  the  assets  are  ready  for  their  intended  use.  Gains  and  losses  from  the
disposal of property, plant and equipment are recorded in gain or loss on disposal and impairment of property, plant and equipment included in the
consolidated statements of comprehensive income (loss).

Depreciation  of  property,  plant  and  equipment  is  computed  using  the  straight-line  method  based  on  the  estimated  useful  lives  of  the  assets  as
follows:

Plant and buildings
Machinery and equipment
Motor vehicles
Office equipment and furniture
Leasehold improvements

(h) Prepaid Land Lease Payments

10 to 24 years
8 to 10 years
4 to 5 years
3 to 5 years
Lesser of useful lives and term of lease

Prepaid  land  lease  payments  represent  amounts  paid  for  the  rights  to  use  land  in  the  PRC  and  is  recorded  at  purchased  cost  less  accumulated
amortization. Amortization is provided on a straight-line basis over the term of the lease agreement, which ranges from 28 to 49 years.

(i)

Intangible Assets

The Company capitalizes the patent payment and the purchased cost of vaccines if the vaccine has received a new drug certificate from the National
Medical Products Administration (“NMPA) of China. If the vaccine has not received a new drug certificate, the purchase cost is expensed as in-
process research and development.

Licenses in relation to the production and sales of pharmaceutical products are amortized on a straight-line basis over their respective useful lives.
Costs incurred to renew or extend the term of licenses are capitalized and amortized over the license’s useful life on a straight-line basis.

The  costs  of  acquiring  and  developing  computer  software  and  cloud  computing  websites  for  internal  use  are  capitalized  as  intangible  assets.
Computer software and cloud computing related intangible assets are amortized over 5 - 10 years.

F-14

 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

(j)

Impairment of Long-Lived Assets

Long-lived  assets  including  property,  plant  and  equipment  and  intangible  assets  subject  to  amortization  are  reviewed  for  impairment  whenever
events or changes in circumstances indicate that the carrying value of an asset group may not be recoverable from the future undiscounted net cash
flows expected to be generated by the asset group. An asset group is identified as assets at the lowest level for which identifiable cash flows are
largely independent of the cash flows of other assets. If the asset group is not fully recoverable, an impairment loss would be recognized for the
difference  between  the  carrying  value  of  the  asset  group  and  its  estimated  fair  value,  based  on  the  discounted  net  future  cash  flows  or  other
appropriate  methods,  such  as  comparable  market  values.  The  Company  uses  estimates  and  judgments  in  its  impairment  tests  and  if  different
estimates or judgment had been utilized, the timing or the amount of any impairment charges could be materially different.

(k)

Income Taxes

The  Company  follows  the  liability  method  of  accounting  for  income  taxes.  Under  this  method,  deferred  tax  liabilities  and  assets  are  determined
based on the temporary differences between the carrying values and tax bases of assets and liabilities using enacted tax rates in effect in the years in
which the differences are expected to reverse. A valuation allowance is provided if, based on the weight of available evidence, it is more-likely-
than-not that some portion, or all, of the deferred tax assets will not be realized. Deferred tax assets and liabilities are measured using enacted tax
rates and laws. 

The tax benefit from an uncertain tax position is recognized only if it is more likely than not that the tax position will be sustained upon examination
by the appropriate taxing authority, based on the technical merits of the position. The tax benefits recognized from such a position are measured
based on the amount that is greater than 50% likely of being realized upon settlement. The Company recognizes a change in available facts after the
reporting date but before issuance of the financial statements in the period when the change in facts occur, even if that new information provides a
better  estimate  of  the  ultimate  outcome  of  an  uncertainty.  Liabilities  associated  with  uncertain  tax  positions  are  classified  as  long−term  unless
expected to be settled within one year. Interest and penalties related to uncertain tax positions, if any, are recorded in the provision for income taxes
and classified with the related liability on the consolidated balance sheets.

(l) Value-added Taxes

Value-added taxes (“VAT”) collected from customers relating to product sales and remitted to governmental authorities are presented on a net basis.
VAT collected from customers is excluded from revenue.

(m) Revenue from Contracts with Customers

The Company adopted ASC Topic 606 Revenue from Contracts with Customers (“ASC 606”), on January 1, 2018, using the modified retrospective
method.

Revenue  is  recognized  when  control  of  promised  goods  is  transferred  to  the  Company’s  customers  in  an  amount  of  consideration  of  which  the
Company expect to be entitled to in exchange for the goods, and the Company can reasonably estimates return provision for the goods.

Product return provisions are estimated based on historical return and exchange data as well as the inventory levels and the remaining shelf lives of
the products in the distribution channels.     

As  of  December  31,  2020,  sales  return  provision  for  the  Company’s  vaccine  products  was  $12,056  (December  31,  2019  -  $3,726).  Sales  return
provision as a percentage of sales was 2.4% and 1.5% in 2020 and 2019, respectively.   

F-15

 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

Deferred  revenue  is  generally  related  to  government  stockpiling  programs  and  advances  received  from  customers.  For  government  stockpiling
programs of H5N1 vaccines, the Company generally obtains purchase authorizations from the government for a specified amount of products at a
specified  price  and  no  rights  of  return  are  provided.  Revenue  is  recognized  when  the  government  takes  delivery  of  the  products.  If  the  products
expire  prior  to  delivery,  these  expired  products  are  recognized  as  revenue  once  cash  is  received  and  the  products  have  expired  and  passed
government inspection. For the year ended December 31, 2020, the Company recognized sales of $4,871 related to contract liabilities at January 1,
2020.

For the year ended December 31, 2020, the Company did not have any significant incremental costs of obtaining contracts with customers incurred
or costs incurred in fulfilling contracts with customers within the scope of ASC Topic 606, that shall be recognized as an asset and amortized to
expenses in a pattern that matches the timing of the revenue recognition of the related contract.

The Company does not have amounts of contract assets since revenue is recognized as control of goods is transferred. The contract liabilities consist
of  advance  payments  from  customers.  The  contract  liabilities  are  reported  in  a  net  position  on  a  customer-by-customer  basis  at  the  end  of  each
reporting period. All contract liabilities are included in deferred revenue in the Consolidated Balance Sheets.

(n) Shipping and Handling

Shipping and handling fees billed to customers are included in sales. Costs related to shipping and handling are recognized in selling, general and
administrative expenses in the consolidated statements of comprehensive income. For the year ended December 31, 2020, $9,609 of shipping and
handling costs was included in selling, general and administrative expenses (2019 - $7,253, 2018 - $6,261).    

(o) Advertising Expenses

Advertising costs are expensed as incurred and included in selling, general and administrative expenses. Advertising costs were $859 for the year
ended December 31, 2020 (2019 - $1,398, 2018 - $3,901).

(p) Research and Development

Research  and  development  ("R&D")  costs  are  expensed  as  incurred  and  are  disclosed  as  a  separate  line  item  in  the  Company’s  consolidated
statements of comprehensive income. R&D costs consist primarily of the remuneration of R&D staff, depreciation, material, clinical trial costs as
well as amortization of acquired technology and know-how used in R&D with alternative future uses. R&D costs also include costs associated with
collaborative R&D and in-licensing arrangements, including upfront fees paid to collaboration partners in connection with technologies which have
not reached technological feasibility and did not have an alternative future use. Reimbursement of R&D costs for arrangements with collaboration
partners is recognized when the obligations are incurred.

Under certain R&D arrangements with third parties, the Company may be required to make payments that are contingent on the achievement of
specific development, regulatory and/or commercial milestones. Before a product receives regulatory approval, license fees and milestone payments
made to third parties are expensed as incurred. License fees and milestone payments made to third parties after regulatory approval is received are
capitalized and amortized over the remaining life of the agreement with third parties.

F-16

 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

(q) Government Grants

Government grants received from the PRC government by the PRC operating subsidiaries of the Company are recognized when there is reasonable
assurance that the amount is receivable and all the conditions specified in the grant have been met. Government grants for R&D are recognized as a
reduction to R&D expenses when the expenses are incurred in the same period when the conditions attached to the grants are met, or recognized as
government grants recognized in income in the period when the conditions are met after the expenses are incurred. Government grants for property,
plant and equipment are deferred and recognized as a reduction to the related depreciation and amortization expenses in the same manner as the
property, plant and equipment are depreciated. Interest subsidies are recorded as a reduction to interest and financing expenses in the consolidated
statements of comprehensive income, or recorded as a reduction to interest capitalized if the subsidies granted are related to a specific borrowing
associated with building a qualifying asset. For government loans received at below market interest rate, the difference between the face value of the
loan and fair value using the effective interest rate method is recorded as deferred government grants.

(r) Retirement and Other Post-retirement Benefits

Full-time employees of the Company in the PRC participate in a government mandated defined contribution plan pursuant to which certain pension
benefits,  medical  care,  unemployment  insurance,  employee  housing  fund  and  other  welfare  benefits  are  provided  to  employees.  Chinese  labor
regulations  require  that  the  Company  makes  contributions  to  the  government  for  these  benefits  based  on  certain  percentages  of  the  employees’
salaries. The Company has no legal obligation for the benefits beyond the contributions. Total amounts for such employee benefits incurred was
$10,809 for the year ended December 31, 2020 (2019 - $9,884, 2018 - $7,438).

(s) Foreign Currency Translation and Transactions

The  Company  maintains  their  accounting  records  in  their  functional  currencies,  U.S.  dollars  (“$”)  for  the  Company,  Sinovac  Hong  Kong  and
Sinovac Singapore, and Renminbi Yuan (“RMB”) for the PRC subsidiaries. The Company uses the US$ as its reporting currency.

At the transaction date, each asset, liability, revenue and expense is re-measured into the functional currency by the use of the exchange rate in effect
at that date. At each period end, foreign currency monetary assets, and liabilities are re-measured into the functional currency by using the exchange
rate in effect at the balance sheet date. The resulting foreign exchange gains and losses are included in selling, general and administrative expenses.
The Company recognized foreign exchange gain of $2,554 for the year ended December 31, 2020 (2019 - $306, 2018 - $559).

Assets  and  liabilities  of  the  PRC  subsidiaries,  Sinovac  Beijing,  Sinovac  LS,  Sinovac  Dalian  and  Sinovac  Biomed  are  translated  into  US$  at  the
exchange  rates  in  effect  at  the  balance  sheet  date.  Revenue  and  expenses  are  translated  at  average  exchange  rates.  Gains  and  losses  from  such
translations are recorded in accumulated other comprehensive income, a component of shareholders’ equity.

Gain on intra-entity foreign currency transactions that are of a long-term-investment nature was $nil for the year ended December 31, 2020 (2019 -
$62, 2018 - $268) which was recorded in accumulated other comprehensive income, a component of shareholders’ equity.

(t) Share-based Compensation

Compensation  expense  for  costs  related  to  all  share-based  payments,  including  grants  of  stock  options,  is  recognized  through  a  fair-value  based
method. The Company uses the Black-Scholes option-pricing model to determine the grant date fair value for stock options. The Company uses the
grant date stock price to determine the grant date fair value of restricted shares. The Company has elected to recognize share-based compensation
costs using the straight-line method over the requisite service period with a graded vesting schedule, provided that the amount of compensation costs
recognized at any date is at least equal to the portion of the grant date value of the awards that are vested at that date. Forfeitures are estimated at the
time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from initial estimates. Share based compensation costs are
recorded net of estimated forfeitures such that expense is recorded only for those awards that are expected to vest.

F-17

 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

(u) Comprehensive Income

The Company’s comprehensive income consists of net income and foreign currency translation adjustments.

(v) Earnings Per Share

Earnings per share is calculated in accordance with Accounting Standards Codification (“ASC”) 260 Earnings per Share. Basic earnings per share is
computed by dividing the net income attributable to shareholders of Sinovac by the weighted average number of common shares outstanding during
the  year.  Diluted  earnings  per  share  is  computed  in  accordance  with  the  treasury  stock  method  and  based  on  the  weighted  average  number  of
common shares and dilutive common share equivalents. Dilutive common share equivalents are excluded from the computation of diluted earnings
per share if their effects would be anti-dilutive.

(w) Leases

The Company adopted ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”) on January 1, 2019 by using the modified retrospective method and
did not restate the comparable periods. The Company has elected the package of practical expedients, which allows the Company not to reassess (1)
whether any expired or existing contracts as of the adoption date are or contain a lease, (2) lease classification for any expired or existing leases as
of the adoption date and (3) initial direct costs for any expired or existing leases as of the adoption date. Lastly, the Company elected the short-term
lease exemption for all contracts with lease terms of 12 months or less.

The Company determines if an arrangement is a lease or contains a lease at lease inception. For operating leases, the Company recognizes a right-
of-use  asset  and  a  lease  liability  based  on  the  present  value  of  the  lease  payments  over  the  lease  term  on  the  consolidated  balance  sheets  at
commencement date. As most of the Company’s leases do not provide an implicit rate, the Company estimates its incremental borrowing rate based
on  the  information  available  at  the  commencement  date  in  determining  the  present  value  of  lease  payments.  The  incremental  borrowing  rate  is
estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased
asset is located.

(x) Fair Value Measurements

Assets and liabilities subject to fair value measurements are required to be disclosed within a specified fair value hierarchy. The fair value hierarchy
ranks the quality and reliability of inputs, or assumptions, used in the determination of fair value and requires assets and liabilities carried at fair
value to be classified and disclosed in one of the following categories based on the lowest level input used that is significant to a particular fair value
measurement:

•

•

Level 1 — Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 — Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2
inputs include quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets and liabilities in
markets that are not active.

•

Level 3 — Unobservable inputs for the asset or liability.

As of December 31, 2020 and 2019, the Company did not have any financial assets or liabilities measured at fair value on a recurring basis.

The carrying values of cash equivalents, restricted cash, short-term investment, accounts receivable, accounts payable and accrued liabilities and
short-term bank loans and the current portion of long-term debt approximate their fair value because of their short-term nature. Fair value of the
long-term  bank  loans  are  determined  based  on  level  2  inputs,  and  the  carrying  amounts  of  long-term  bank  loans  approximate  fair  value  as  the
related interest rates approximate rates currently offered by financial institution for similar debt instruments.

The Company measures property, plant and equipment at fair value on a non-recurring basis only if an impairment charge were to be recognized.
There were no non-recurring fair value measurements for the years ended December 31, 2020 and 2019.

F-18

 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

(y) Concentration of Risks

Exchange Rate Risks

The Company operates in China, which may give rise to significant foreign currency risks from fluctuations and the degree of volatility of foreign
exchange rates between the U.S. dollars and the RMB. In 2020, foreign exchange gain of $2,554 is included in selling, general and administrative
expenses (2019 - $306, 2018 - $559). As of December 31, 2020, cash and cash equivalents of $322,442 (RMB 2,104  million)  is  denominated  in
RMB and are held in PRC and Hong Kong (December 31, 2019 - $57,079 (RMB 397 million)).   

Currency Convertibility Risks

Substantially all of the Company’s operating activities are transacted in RMB, which is not freely convertible into foreign currencies. All foreign
exchange  transactions  take  place  either  through  the  People’s  Bank  of  China  or  other  banks  authorized  to  buy  and  sell  foreign  currencies  at  the
exchange rates quoted by the People’s Bank of China. Approval of foreign currency payments by the People’s Bank of China or other regulatory
institutions  requires  submitting  a  payment  application  form  together  with  other  information  such  as  suppliers’  invoices,  shipping  documents  and
signed contracts.

Concentration of Credit Risks

Financial instruments that potentially subject the Company to concentration of credit risks consist primarily of cash and cash equivalents, restricted
cash,  short-term  investment  and  accounts  receivable,  the  balances  of  which  are  stated  on  the  consolidated  balance  sheets  which  represent  the
Company’s maximum exposure. The Company places its cash and cash equivalents, restricted cash, and short-term investment in good credit quality
financial institutions in Hong Kong and China. Concentration of credit risks with respect to accounts receivables is linked to the concentration of
revenue.  The  Company’s  customers  are  mainly  various  government  agencies  in  China.  For  the  year  ended  December  31,  2020,  one  of  the
Company’s customers accounted for 11% of the Company’s total revenue, and no single customer of the Company accounted for more than 10% of
the  total  sales  for  the  year  ended  December  31,  2019  and  2018.  To  manage  credit  risk,  the  Company  performs  ongoing  credit  evaluations  of
customers’ financial condition.

Interest Rate Risks

The  Company  is  subject  to  interest  rate  risk.  Other  than  loans  from  a  non-controlling  shareholder  of  $12,260  with  fixed  interest  rates  as  of
December 31, 2020 (note 12(a)), interests of other interest-bearing loans are charged at variable rates based on the People’s Bank of China (note 11).

(z) Recently Issued Accounting Standards

In  August  2020,  the  FASB  issued  ASU  No.  2020-06,  Debt—Debt  with  Conversion  and  Other  Options  (Subtopic  470-20)  and  Derivatives  and
Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2020-06”), which reduces the number of accounting models for convertible
debt instruments and convertible preferred stock that simplifies the accounting for convertible instruments. ASU 2020-06 is effective for fiscal years
beginning  after  December  15,  2021,  including  interim  periods  within  those  fiscal  years.  Early  adoption  is  permitted.  The  Company  is  currently
evaluating the impact of adoption on its consolidated financial statements.

F-19

 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

3.

Restricted Cash

As  of  December  31,  2020,  the  balance  of  $9,196  (December  31,  2019  –  $3,160)  represents  cash  collateral  held  as  a  guarantee  relating  to  an  EPI
(Expanded Program on Immunization) sales contract, which is restricted until December 2021.

4.

Short-term investments

As  of  December  31,  2020,  the  Company’s  short-term  investments  comprised  of  only  debt  securities,  with  a  total  balance  of  $135,248  (December  31,
2019 - $50,274).  All  of  the  short-term  held-to-maturity  investments  were  deposits  in  commercial  banks  with  maturities  of  less  than  one  year  and  the
Company has the intent and ability to hold those securities to maturity.

During the years ended December 31, 2020, 2019 and 2018, the Company recorded interest income from its short-term investments of $1,154, $797 and
$47 in the consolidated statements of comprehensive income, respectively.

5.

Accounts Receivable – net

Trade receivables
Allowance for doubtful accounts

Other receivables
Total accounts receivable

December 31,

2020

2019

  $

  $

257,311    $
(6,680)  
250,631   
2,856   
253,487    $

116,278 
(4,181)
112,097 
1,639 
113,736 

The allowance for doubtful accounts reflects the Company’s best estimate of probable losses inherent in the accounts receivable balance. The Company
estimates the allowance based on historical experience, the age of the accounts receivable balances, credit quality of the Company’s customers, current
economic conditions, and other factors that may affect customers’ ability to pay.           

The Company’s maximum exposure to credit risk at the balance sheets date relating to trade receivables is summarized as follows:

Aging within one year, net of allowance for doubtful accounts
Aging greater than one year, net of allowance for doubtful accounts
Total trade receivables

6.

Inventories

Raw materials
Work in progress
Finished goods
Total inventories

December 31,

2020

2019

240,266    $
10,365   
250,631    $

108,635 
3,462 
112,097 

December 31,

2020

2019

29,005    $
52,515   
24,293   
105,813    $

5,689 
8,565 
13,592 
27,846 

  $

  $

  $

  $

For the year ended December 31, 2020, the Company charged $1,697  of  excessive  fixed  production  overhead  to  cost  of  sales  (2019  -  $3,794, 2018 -
$2,735).

For the year ended December 31, 2020, cost of sales includes $5,816 of inventory provision for products that are likely to expire before being sold (2019
- $ 651, 2018 - $2,529).

F-20

 
 
    
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

7.

Property, Plant and Equipment - net

Cost
Construction in progress
Plant and buildings
Machinery and equipment
Motor vehicles
Office equipment and furniture
Leasehold improvements
Total cost
Less: Accumulated depreciation
Construction in progress
Plant and buildings
Machinery and equipment
Motor vehicles
Office equipment and furniture
Leasehold improvements
Total accumulated depreciation
Property, plant and equipment, net

December 31,

2020

2019

  $

  $

  $

  $
  $

143,465    $
29,963   
63,675   
1,830   
3,343   
15,632   
257,908    $

—    $

13,200   
32,398   
1,184   
1,823   
8,932   
57,537    $
200,371    $

29,367 
28,833 
49,762 
1,536 
3,431 
12,767 
125,696 

— 
12,183 
27,012 
1,057 
2,122 
9,012 
51,386 
74,310 

Buildings of Sinovac Dalian with a net book value of $2,567 (RMB16.7 million) were pledged as collateral for a bank loan from Bank of China (note 11
(b)).

Buildings of Sinovac Dalian with a net book value of $672 (RMB4.4 million) were pledged as collateral for a bank loan from China Merchants Bank
(note 11 (g)).

Buildings and Machinery and equipment of Sinovac Dalian with a net book value of $23,015 (RMB150.2 million) were pledged as collateral for a bank
loan from China Everbright Bank (note 11 (h))

Net depreciation expense for the year ended December 31, 2020 was $3,693 (2019 - $4,579, 2018 - $4,887 ), after deduction of amortized government
grant specifically related to qualified property, plant and equipment.

Loss on disposal of equipment for the year ended December 31, 2020 was $163 (2019 - $294, 2018 - $75).

8.

Prepaid Land Lease Payments

Prepaid land lease payments
Less: accumulated amortization
Net carrying value

December 31,

2020

2019

  $

  $

11,066    $
2,819   
8,247    $

10,372 
2,407 
7,965 

F-21

 
 
 
 
 
 
 
   
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

Prepaid land lease payments of Sinovac Dalian with a net book value of $2,196 (RMB 14.3 million) were pledged as collateral (note 11 (f)) for a bank
loan from Guangdong Development Bank.

Amortization expense for prepaid land lease payments for the year ended December 31, 2020 was $238 (2019 - $238, 2018 - $249).

9.

Intangible Assets - net

Computer software
Less: accumulated amortization
Net carrying value

December 31,

2020

2019

  $

  $

1,586    $
112   
1,474    $

— 
— 
— 

Amortization expense for intangible assets for the year ended December 31, 2020 was $106 (2019 - $nil, 2018 - $nil).

10.

Lease

The Company’s operating leases mainly related to plants and buildings, some of which include options to extend the leases that have not been included in
the calculation of the Company’s lease liabilities and right-of-use assets. The Company recognizes rent on a straight-line basis over the expected term of
the lease, which includes rent holiday and scheduled rent increase. For leases with terms greater than 12 months, the Company records the related asset
and lease liability at the present value of lease payments over the term.

As of December 31, 2020, there was no finance leases entered into by the Company.

As  of  December  31,  2020,  the  weighted  average  remaining  lease  term  was  10.8  years  and  weighted  average  discount  rate  was  4.9%  for  the  Group’s
operating leases. Operating lease cost excluding cost of short-term lease for the year ended December 31, 2020 was $6,075. Short-term lease cost for the
year ended December 31, 2020 was $784 (2019 - $487, 2018 - $948). Supplemental cash flow information related to operating leases was as follows:

Cash payments for operating leases
Right-of-use asset obtained in exchange for operating lease liabilities

  $

856    $

71,824   

807 
135 

Future lease payments under operating leases as of December 31, 2020 were as follows:

For the year
ended December 31,

2020

2019

2021
2022
2023
2024
2025
Thereafter
Total future lease payments
Less: Imputed interest
Total lease liability balance

  $

  $

7,700 
10,621 
10,745 
10,891 
11,016 
63,430 
114,403 
25,398 
89,005 

Minimum future rental payments under short-term lease for the year ending December 31, 2020 was $10.

As of December 31, 2020, additional operating leases that have not yet commenced were immaterial.

F-22

 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

11.

Bank Loans

Summarized below are bank loans as of December 31, 2020 and 2019:

Bank of Beijing (a)
Bank of China (b)
Bank of Beijing (c)
SPD Silicon Valley Bank (d)
SPD Silicon Valley Bank (e)
Guangdong Development Bank (f)
China Merchants Bank (g)
Bank loans due within one year
China Merchants Bank (g)
China Everbright Bank (h)
Long-term bank loans
Total  bank loans

December 31,

2020

2019

  $

  $

—    $

1,993   
4,598   
6,503   
18,361   
1,378   
108   
32,941   
163   
1,992   
2,155   
35,096    $

3,842 
1,005 
— 
1,087 
— 
— 
— 
5,934 
— 
— 
— 
5,934 

(a) On May 20, 2015, Sinovac Beijing entered into a bank loan with Bank of Beijing in the aggregate principal amount of $7,356 (RMB 48 million) with
a term from July 2015 to May 2020 for construction of the pneumococcal polysaccharide vaccine facilities. The loan’s interest rate is based on the prime
rate of a five-year term loan published by the People’s Bank of China at the time withdraws are made. Interest is payable quarterly and the loan was
repaid on May 20, 2020.         

(b) On  November  20,  2019,  Sinovac  Dalian  entered  into  a  maximum  credit  facility  of  $3,065  (RMB  20  million)  with  Bank  of  China  to  finance  its
working capital requirements. $1,005 (RMB 7 million) was drawn on December 24, 2019 and was repaid on December 24, 2020. On March 13, 2020,
Sinovac Dalian withdrew $1,073 (RMB 7 million) with an annual interest rate at 95 basis point above the prime rate of a one year term loan published by
the People’s Bank of China, at 5.00%. On December 9, 2020, Sinovac Dalian withdrew $920 (RMB 6 million) with an annual interest rate at 55 basis
point above the prime rate of a one year term loan published by the People’s Bank of China, at 4.40%.  Interest  is  payable  monthly  and  the  loans  are
repayable on March 13, 2021 and December 9, 2021, respectively. Buildings of Sinovac Dalian with a net book value of $2,567 (RMB 16.7 million) were
pledged as collateral.

(c) On March 31, 2020, Sinovac LS entered into a maximum credit facility of $4,598 (RMB 30  million)  with  Bank  of  Beijing  to  finance  its  working
capital requirements. $4,598 (RMB 30 million) was drawn on March 31, 2020 with an annual interest rate of 3.05%. Interest is payable quarterly and the
loan is payable on March 31, 2021.

(d) On November 25, 2019, Sinovac Dalian entered into a revolving bank loan with SPD Silicon Valley Bank with the aggregate principal of $7,663
(RMB 50 million) to finance its working capital requirements. The revolving loan bears interest at 125 basis points above the prime rate of a one-year
term  loan  published  by  the  People’s  Bank  of  China,  with  a  weighted  average  rate  at  5.1%  and  interest  is  payable  quarterly.  Each  withdraw  from  the
revolving loan has a maximum term of 12 months. $1,087 (RMB 7.6 million) was drawn in 2019 and repaid in December 2020. The outstanding balance
of $6,503 (RMB 42.4 million) was drawn during 2020 and is payable on or before August 6, 2021.  

(e) On  May  14,  2020  and  September  3,  2020,  Sinovac  LS  entered  into  two  revolving  bank  loans  with  SPD  Silicon  Valley  Bank  with  the  aggregate
principal of $7,663 (RMB 50 million) and $10,728 (RMB 70 million) to finance its working capital requirements. The revolving loan bears interest at
120  basis  points  above  the  prime  rate  of  a  one-year  term  loan  published  by  the  People’s  Bank  of  China,  with  a  weighted  average  rate  at  5.05% and
interest is payable quarterly. Each withdraw from the revolving loan has a maximum term of 12 months. The outstanding balance of $18,361 (RMB 119.8
million) was drawn during 2020 and is payable on or before October 15, 2021.  

F-23

 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

(f) On November 5, 2020, Sinovac Dalian entered into a maximum credit facility of $1,379 (RMB 9  million)  with  Guangdong  Development  Bank  to
finance its working capital requirements. $1,378 (RMB 9.0 million) was drawn during 2020 and payable on or before November 29, 2021. The loan bears
interest at 115 basis point above the prime rate of one year term loan published by the People’s Bank of China, at 5% and interest is payable monthly.
Prepaid land lease payments of Sinovac Dalian with a net book value of $2,196 (RMB 14.3 million) were pledged as collateral.

(g)  On  May  26,  2020,  Sinovac  Dalian  entered  into  four  mortgages  in  the  total  amount  of  $333  (RMB  2.1  million)  with  China  Merchants  Bank  to
purchase four apartments. The loans bears annual interest rate at 175 basis point above the prime rate of a one year term loan published by the People’s
Bank of China, at 5.6%. Principals and interests are repaid monthly over a term of 36 months. Sinovac Dalian repaid $58 (RMB 0.4 million) in principal
and interest in 2020. As of December 31, 2020, $108 (RMB 0.7 million) is recorded in bank loans due within one year and $163 (RMB 1.1 million) is
recorded in long-term bank loans. Buildings of Sinovac Dalian with a net book value of $672 (RMB 4.4 million) were pledged as collateral.

(h)  On  November  17,  2020,  Sinovac  Dalian  entered  into  a  maximum  credit  facility  of  $30,651  (RMB  200  million)  is  to  finance  Sinovac  Dalian’s
purchase of property plant and equipment, with a term from November 17, 2020 to November 16, 2028. The loan bears annual interest rate at 123 basis
point  above  the  prime  rate  of  a  five  year  term  loan  published  by  the  People’s  Bank  of  China,  at  5.88%.  Interest  is  payable  quarterly  and  principal
installment repayments begin in 2023 and shall be fully paid by November 16, 2028. Certain machinery and equipment of Sinovac Dalian with a net
book  value  of  $23,015  (RMB  150.2  million)  were  pledged  as  collateral.  Sinovac  Dalian  withdrew  $1,992  (RMB  13  million)  on  December  14,  2020,
which will be repaid during 2023 to 2028.

Aggregate maturities of loans for each of the next 5 years following December 31, 2020 are as follows:

Within 1 year
In 2022
In 2023
In 2024
After 2024
Total

  $

  $

32,941 
114 
98 
249 
1,694 
35,096 

The weighted average interest rate for all short-term and long-term bank loans was 4.84% in 2020 (2019 - 5.09%, 2018 - 4.91%). The weighted average
interest rate for short-term loans was 4.77% in 2020 (2019 – 5.09%, 2018 – 5.04%). The Company incurred $1,485 in interest and financing expenses for
the year ended December 31, 2020 (2019 - $715,  2018  -  $1,470 ),  of  which  $32  was  capitalized  in  property,  plant  and  equipment  for  the  year  ended
December 31, 2020 (2019 - $65, 2018 - $400 ).

12.

Related Party Transactions and Balances

(a) Loan from a non-controlling shareholder

Loan -  current
Loan -  non - current

December 31,

2020

2019

  $

  $

6,155    $
6,130   
12,285    $

6,607 
1,436 
8,043 

F-24

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

The Company has four loans due to Dalian Jin Gang Group, the non-controlling shareholder of Sinovac Dalian, with a total amount of $12,260, of which
two  loans  totalling  $6,130  (RMB40  million)  were  borrowed  in  August  2020  and  are  repayable  on  August  18,  2021.  $1,533  (RMB10  million)  was
borrowed  in  September  2019  and  is  repayable  on  September  19,  2022.  $4,597 (RMB30  million)  was  borrowed  in  August  2020  and  is  repayable  on
August 9, 2023. These four loans are unsecured, bearing interest at 6.5% per year and payable monthly. Interest expense was $663 in 2020 (2019 - $455,
2018 - $453). As of December 31, 2020, $25 interest is owed on the loan from the non-controlling shareholder (December 31, 2019 - $nil). Interests of
$640, $470 and $438 were paid to the non-controlling shareholder for the years ended December 31, 2020, 2019 and 2018, respectively.

(b) The Company entered into the following transactions in the normal course of operations at the exchange amount with related parties:

For the year ended December 31,
2019

2018

2020

Rent expenses to SinoBioway Biotech Group Co. Ltd. (“SinoBioway”).
Rent expenses to Dalian Jin Gang Group (“Jin Gang”).

  $

  $

776    $
22   
798    $

775 
36 
811 

 $

 $

810 
— 
810 

In 2004, the Company entered into two operating lease agreements with SinoBioway, the non-controlling shareholder of Sinovac Beijing, with respect to
Sinovac Beijing’s production plant and laboratory in Beijing, China with annual lease payments totaling $197 (RMB 1.4 million). The leases commenced
on August 12, 2004 and have a term of 20 years. One of the lease agreements was amended on August 12, 2010 with the rent increasing from $75 (RMB
0.5 million) to $197 (RMB1.4 million) per year.

In  June  2007,  the  Company  entered  into  another  operating  lease  agreement  with  SinoBioway,  with  respect  to  the  expansion  of  Sinovac  Beijing’s
production plant in Beijing, China, for an annual lease payment of $296 (RMB2.0 million). The lease commenced in June 2007 and has a term of 20
years.

In September 2010, the Company entered into another operating lease agreement with SinoBioway with respect to expansion of Sinovac R&D’s business
in research and development activities for an annual lease payment of $146 (RMB1.0 million). The lease commenced on September 30, 2010 and has a
term of 5 years.

On  April  8,  2013,  the  Company  entered  into  four  supplemental  agreements  with  SinoBioway,  under  which  the  expiration  date  of  all  operating  lease
agreements was extended to April 7, 2033.

In 2019, the Company entered into an operating lease agreement with Jin Gang, the non-controlling shareholder of Sinovac Dalian, to rent refrigeration
storage with the space of 2,000 sq.m. with an annual rent amounted $49 (RMB0.3 million). The lease commenced on January 1, 2019 and has a term of 5
years. On June 30, 2019, the lease agreement was amended for a remaining 5.5 years, and the annual rent was changed to $22(RMB0.2 million) as the
space of the leased refrigeration storage was reduced to 1,000 sq.m. In 2019, the Company also entered into a management service agreement with Jin
Gang, pursuant to which it provided the Company with management service related to the operating lease agreement with an annual management service
fee of $14 (RMB0.1 million). The management service agreement was amended on June 30, 2019, and the annual management service fee was changed
to $7 (RMB 44,000).

As of December 31, 2020, $7,796 in right-of use asset and $7,423 in current and non-current lease liability are related to the lease with SinoBioway and
Jin Gang.

13.

Accounts Payable and Accrued Liabilities

Trade payables
Machinery and equipment payables
Accrued expenses
Value added tax payable
Other tax payable
Withholding tax payable
Bonus and benefit payables
Other payables
Total accounts payable and accrued liabilities

December 31,

2020

2019

  $

  $

30,543 
13,044 
113,688 
4,682 
1,885 
301 
44,098 
3,187 
211,428 

 $

 $

5,783 
2,106 
31,145 
515 
488 
74 
10,884 
7,895 
58,890 

F-25

 
 
 
 
 
 
 
 
   
   
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

14.

Income Taxes

Antigua and Barbuda

Under the current laws of Antigua and Barbuda, the Company is not subject to tax on income or capital gains. Additionally, upon payments of dividends
by the Company to its shareholders, no Antigua and Barbuda withholding tax will be imposed.

Hong Kong

Under Hong Kong tax laws, Sinovac Hong Kong is subject to Hong Kong Profits Tax rate at 16.5%, and is exempted from income tax on its foreign-
derived income. There are no withholding taxes in Hong Kong on remittance of dividends.

Singapore

Under Singapore tax laws, Sinovac Singapore is subject to Singapore Income Tax rate at 17%, and is exempted from income tax on its foreign-derived
income. There are no withholding taxes in Singapore on remittance of dividends.

China

Effective from January 1, 2008, the PRC’s statutory income tax rate is 25%. The Company’s PRC subsidiaries are subject to income tax at the statutory
rate of 25% except for Sinovac Beijing, Sinovac Dalian and Sinovac LS. Sinovac Beijing and Sinovac Dalian, have been reconfirmed as a “High and
New Technology Enterprise” (“HNTE”) in 2020 for a period of 3 years, are subject to a preferential income tax rate of 15% from 2020 to 2022. Sinovac
LS, has been confirmed as a “High and New Technology Enterprise” (“HNTE”) in 2020 for a period of 3 years, is subject to a preferential income tax
rate of 15% from 2020 to 2022.

The Company’s income before income tax consists of:

For the year ended December 31,
2019

2018

2020

Non-PRC
PRC
Total

  $

  $

5,866 
210,751 
216,617 

 $

 $

(7,337)
78,157 
70,820 

 $

 $

(16,308)
62,891 
46,583 

Income taxes attributed in China consists of:

For the year ended December 31,
2019

2018

2020

Current income tax expenses
Deferred tax benefits
Total income tax expense

  $

  $

(42,665)   $
11,227   
(31,438)   $

(11,290)   $
5,685   
(5,605)   $

(7,326)
(3,146)
(10,472)

The following is a reconciliation of the Company’s total income tax expenses to the amount computed by applying the PRC statutory income tax rate of
25% to its income before income taxes for the years ended December 31, 2020, 2019 and 2018:

For the year ended December 31,
2019

2018

2020

Income before income taxes
Income tax expense at the PRC statutory rate
International tax rate differential
Super deduction for research and development expenses
Non-deductible expenses
Other adjustments
Effect of preferential tax rate
Change in valuation allowance
Effect of PRC withholding tax
Income tax expense

  $

  $

216,617    $
(54,154)  
(419)  
7,229   
(2,225)  
(1,002)  
19,224   
2,656   
(2,747)  
(31,438)   $

70,820    $
(17,705)  
(1,827)  
2,310   
685   
(486)  
7,018   
4,415   
(15)  
(5,605)   $

46,583 
(11,646)
(3,929)
1,835 
(1,865)
14 
6,562 
(1,429)
(14)
(10,472)

F-26

 
 
 
 
 
 
 
   
   
 
 
 
  
  
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

The tax effects of temporary differences that give rise to the Company’s deferred tax assets are as follows:

Inventories
Accrued expenses
Deferred government grants
Fixed assets
Tax losses carried forward
Less: valuation allowance
Deferred tax assets

December 31,

2020

2019

1,212 
17,240 
2,838 
5,382 
338 
(119)
26,891 

 $

394 
4,184 
985 
4,160 
4,420 
(2,775)
11,368 

  $

In assessing the realizbility of deferred tax assets, management considers whether it is more likely than not that some portion of the deferred tax assets
will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which
the temporary differences become deductible or utilized. The Company considers projected future taxable income and tax planning strategies in making
this assessment. Based upon an assessment of the level of historical taxable income and projections for future taxable income over the periods in which
the deferred tax assets are deductible or can be utilized, the Company provided valuation allowance of $119 as of December 31, 2020 (December 31,
2019 - $2,775).

The  Company  evaluates  its  valuation  allowance  requirements  at  end  of  each  reporting  period  by  reviewing  all  available  evidence,  both  positive  and
negative,  and  considering  whether,  based  on  the  weight  of  that  evidence,  a  valuation  allowance  is  needed.  When  circumstances  cause  a  change  in
management’s  judgment  about  the  realizability  of  deferred  tax  assets,  the  impact  of  the  change  on  the  valuation  allowance  is  generally  reflected  in
income from operations. The future realization of the tax benefit of an existing deductible temporary difference ultimately depends on the existence of
sufficient  taxable  income  of  the  appropriate  character  within  the  carry  forward  period  available  under  applicable  tax  law.  The  Company’s  valuation
allowance decreased by $2,656 from $2,775 as of December 31, 2019 to $119 as of December 31, 2020.

Tax losses of the Company’s PRC subsidiaries in the amount of $1,932 (RMB 12.6 million) as of December 31, 2020 will expire from 2021 to 2030, if
not utilized.

As of December 31, 2020, deferred tax liabilities of $2,724 represents withholding tax for the potential remittance of earnings from the PRC subsidiaries
to Sinovac Hong Kong, accrued at a 5% withholding tax rate. Under the PRC tax regulations, dividends from PRC companies to their overseas parents in
respect of earnings derived from January 1, 2008 onwards are subject to PRC dividend withholding tax at 10%, which could be reduced to 5% should
treaty benefits be applicable.

As  of  December  31,  2020,  the  Company  has  not  recognized  any  deferred  tax  liability  on  Sinovac  Beijing’s  undistributed  earnings  of  approximately
$189,898,  in  view  of  the  Company's  permanent  reinvestment  plan.  The  Company  would  be  subject  to  PRC  withholding  income  taxes  at  5%  or  10%,
depending on the availability of treaty benefit between China and Hong Kong, upon the distribution of such profits outside of China. As of December 31,
2020, the Company’s portion on the amount of unrecognized deferred tax liability was ranging from $9,495 to $18,990.

The changes in unrecognized tax benefits are as follows:

For the year ended December 31,
2019

2018

2020

Balance at January 1
Additions for tax positions of the current year
Additions for tax positions of the prior years
Settlement with the taxing authority
Lapse of statute of limitations
Balance at December 31

904 
— 
— 
— 
(343)
561 

 $

1,681 
— 
— 
— 
(777)
904 

 $

1,873 
7 
— 
— 
(199)
1,681 

  $

The Company recognizes interest and penalties, if any, related to unrecognized tax benefits, and such interest and penalties are reversed when statute of
limitations lapse. For the year ended December 31, 2020, the Company reversed $107 in interest (December 31, 2019 -

F-27

 
 
 
 
 
 
 
 
   
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
   
   
 
 
 
  
  
 
 
  
  
 
 
  
  
 
 
  
  
 
 
  
  
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

$458 interest recorded) and nil in penalties (December 31, 2019 - nil). The Company had $305 accrued interest as of December 31, 2020 (December 31,
2019 - $412). The PRC tax law provides statute of limitations ranging from 3 to 5 years and for transfer pricing related matters, it could be extended to 10
years.  In  general,  the  PRC  tax  authorities  have  up  to  five  years  to  conduct  examinations  of  the  tax  filings  of  the  Company’s  PRC  subsidiaries.
Accordingly, the PRC subsidiaries’ tax years of 2015 - 2020 remain open to examination by the respective tax authorities.

As of December 31, 2020, the Company had unrecognized tax benefits of approximately $561 (December 31, 2019 - $904, December 31, 2018 - $1,681)
and such balance was included in “other non-current liabilities”. As of December 31, 2020, unrecognized tax benefits amounting to $561 would affect the
effective tax rate if recognized (December 31, 2019 - $904, December 31, 2018 - $1,681). The Company does not expect the amount of unrecognized tax
benefits would change significantly in the next 12 months.

15.

Deferred Revenue

Current  deferred  revenue  included  $363,787  of  advances  from  customers  (December  31,  2019  -  $5,258)  and  $218  from  Chinese  government  for
stockpiling of H5N1 and hepatitis A vaccines (December 31, 2019 - $204).

16.

Deferred Government Grants

Deferred  government  grants  represent  funding  received  from  the  government  for  research  and  development  (“R&D”)  or  investment  in  building  or
improving production facility. The amount of deferred government grants as of year end is net of research and development expenditures, deduction of
depreciation expenses, and the amount recognized as government grant income. The Company received $14,162 of government grant in 2020 (2019 -
$975,  2018  -  $3,546)  that  were  deferred.  In  addition,  the  Company  received  $3,137  in  other  government  grants  and  subsidies  for  the  year  ended
December 31, 2020 and recognized as income in the statements of comprehensive income (2019 - $501, 2018 - $254).

Summarized below are deferred government grants As of December 31, 2020 and 2019:

Government grants for property, plant and equipment (a)
Government grants for research and development (b)
Current deferred government grants
Government grants for property, plant and equipment (a)
Government grants for research and development (b)
Non-current deferred government grants
Total deferred government grants

  $

December 31,

2020

2019

 $

565 
14,594 
15,159 
3,003 
1,226 
4,229 
19,388 

486 
2,252 
2,738 
2,137 
1,849 
3,986 
6,724 

(a) The Company has four deferred government grants related to property, plant and equipment. The Company has fulfilled one of the grants’ conditions
and expect to fulfill another one in 2021. $565 will be amortized in 2021 which was included in the current portion of deferred government grant and
$1,714 will be amortized after 2021 which was included in the non-current portion of deferred government grants. $412 was recorded as a reduction to
depreciation  expense  for  the  year  ended  December  31,  2020  (2019  -  $412,  2018  -  $430),  and  $80  was  recorded  as  government  grant  recognized  in
income for the year ended December 31, 2020 (2019 - $79, 2018 - $82). $1,289 represents the unamortized portion of one grant where the Company
received but has not fulfilled the conditions attached to the grant. As the Company does not expect to fulfill the conditions within one year, the grant is
recorded as a non-current deferred government grant.

(b) The Company has ten deferred government grants related to various research and development projects. The Company expects to fulfill nine grants’
conditions in 2021 and recorded $14,594 as current portion of deferred government grants, while the remaining one grant’s condition is expected to be
fulfilled after 2021 and $1,226 is recorded in the non-current portion of deferred government grants.  

F-28

 
 
 
 
 
 
 
 
   
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
  
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

17.

Commitments and Contingencies

(a) Other Commitments

In addition to commitments disclosed in note 23, commitments related to R&D expenditures are $3,886 as of December 31, 2020.

Commitments related to capital expenditures for the Company are approximately $45,306 as of December 31, 2020.

(b) Foreign Corrupt Practice Act Matters

The Company may be subject to legal proceedings, investigations and claims relating to the conduct of the Company’s business from time to time.

The Beijing People’s Court issued five judgments in 2016 and 2017. These judgments were related to corrupt conduct allegedly engaged in by a former
official of the Center for Drug Evaluation in NMPA, his wife and his son. These judgments found that the official and his wife had engaged in a practice
of improperly soliciting and accepting payments from various individuals involved in the vaccine products industry. According to the judgments, one of
the  individuals  solicited  by  the  official  was  Mr.  Weidong  Yin,  the  Company’s  chairman,  president  and  chief  executive  officer.  It  was  asserted  in  the
judgments that Mr. Weidong Yin made three payments, and arranged for a loan, to the official and his wife, in the total amount of $77 (RMB 0.6 million)
between 2002 and 2011. Mr. Weidong Yin was not charged with any offense or improper conduct and he cooperated as a witness with the procuratorate.
To the Company’s knowledge, the Chinese authorities have not commenced any legal proceedings or government inquiries against Mr. Yin. In December
2016, the Company’s audit committee authorized the commencement of an internal investigation into the allegations made in the judgments. The audit
committee engaged Latham & Watkins as independent counsel to assist with the investigation.

In 2017 and 2018, the Company became aware of certain judgments based on bribery charges issued by Chinese courts in four provinces against various
officials of the CDC. While these judgments appear to reflect an industry-wide investigation focused on CDC officials, they also referenced nine of our
former salespersons, together with sales personnel from several other Chinese vaccine companies and distributors. These judgments did not name, and no
charges  were  brought  against,  our  company  or  any  of  our  directors  or  officers  as  defendants.  To  the  best  of  the  Company’s  knowledge,  the  nine
referenced employees cooperated with the procuratorate. The procuratorate did not contact the Company for cooperation. Upon becoming aware of these
judgments, the Company’s Audit Committee expanded its internal investigation to review matters related to these judgments and our sales practices and
policies, and further engaged Latham & Watkins LLP to continue the independent investigation with the expanded scope. One of the nine former sales
employees  has  been  convicted  for  giving  bribes.  The  judgment  states  that  this  former  sales  employee  took  these  actions  without  knowledge  of  the
Company. His criminal penalty was waived by the court.

F-29

 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

After the Company publicly announced the internal investigation arising from the allegations in a research report in December 2016, the Company was
notified by the SEC in February 2017 of an enforcement inquiry related to the matters discussed in the report, and in April 2017 the Company received a
subpoena from the SEC requesting documents. In September 2017, the Company received an inquiry from the Department of Justice (the “DOJ”) and the
Company has been cooperating with the DOJ. The SEC and DOJ have requested information regarding the judgments discussed above, and the Company
is cooperating with these requests.

Also in February 2017, the Company received an inquiry from NASDAQ related to the same matter. Further, in May 2018, the Company received an
inquiry  from  NASDAQ  requesting  information  related  to  the  actions  by  Sinobioway  and  their  impact  on  the  Company’s  operations  and  financial
reporting. The Company has cooperated with both of these NASDAQ inquiries.

On  August  14,  2018,  the  SEC  notified  the  Company  that  the  SEC  had  concluded  its  investigation  and  would  not  recommend  an  enforcement  action
against the Company at this time. On September 12, 2018, the DOJ notified the Company that it had closed its investigation, with no charges.

With the closure of the DOJ’s investigation, the Company is not aware of any pending U.S. government investigations of the Company related to these
matters.

(c) Other Litigation Matters

On March 5, 2018, the Company filed a lawsuit in the Court of Chancery of the State of Delaware seeking a determination whether 1Globe, The Chiang
Li Family, OrbiMed and other shareholders of Sinovac Biotech Ltd. had triggered the Rights Agreement by forming a group holding approximately 45%
of  outstanding  shares  of  Sinovac  Biotech  Ltd.,  in  excess  of  the  plan’s  threshold  of  15%,  and  acting  in  concert  prior  to  the  2017  AGM.  The  Rights
Agreement is intended to promote the fair and equal treatment of all Sinovac shareholders and ensure that no person or group can gain control of Sinovac
through undisclosed voting arrangements, open market accumulation or other tactics potentially disadvantaging the interest of all shareholders.

On April 12, 2018, 1Globe filed an amended answer to the Company’s complaint, counterclaims, and a third-party complaint against Mr. Weidong Yin
alleging, among other allegations, that the Rights Agreement is not valid, that Mr. Weidong Yin and the Buyer Consortium had previously triggered the
Rights Agreement, and that 1Globe did not trigger the Rights Agreement. The Company and its board of directors believes that the actions taken by the
board of directors were appropriate under the circumstances and that the allegations of the counterclaims and third-party complaint are without merit.
1Globe asks for various measures of equitable relief and also includes a claim for its costs, including attorneys’ fees.

On July 31, 2018, following the Company motions for partial summary judgment and an expedited trial date, the Delaware Chancery Court effectively
stayed the action pending receipt of a post-trial decision from the Antigua Court in the matter captioned 1Globe Capital, LLC and Sinovac Biotech Ltd.,
Claim  No.  ANUHCV  2018/0120.  On  December  19,  2018,  the  Antigua  Court  issued  a  judgment  affirming  the  validity  of  Sinovac  Antigua’s  Rights
Agreement under Antigua law, and finding that “there was a secret plan to take control” of the Company at the 2017 AGM.

Based  upon  the  Antigua  Court’s  judgment  and  other  facts  known  to  the  board  of  directors,  the  Company’s  board  of  directors  determined  that  the
Collaborating  Shareholders  became  Acquiring  Persons  on  or  prior  to  the  2017  AGM  and  their  conduct  resulted  in  a  “Trigger  Event”  under  the
Company’s Rights Agreement. As a result of becoming Acquiring Persons, the approximately 28.7 million Rights held by the Collaborating Shareholders
automatically became void under the terms of the Rights Agreement. Pursuant to the Rights Agreement, the board of directors elected to exchange the
approximately  42.4  million  valid  and  outstanding  Rights  held  by  the  Company’s  shareholders  (not  including  the  Collaborating  Shareholders)  for  a
combination of approximately 27.8 million Common Shares and approximately 14.6 million Series B Preferred Shares, all of which the Company issued
into a trust on February 22, 2019 for the benefit of the holders of the valid and outstanding Rights.

On March 6, 2019, the Delaware Chancery Court entered a status quo order providing that the Company not distribute any of the Exchange Shares to
rights  holders  until  the  final  disposition  of  the  pending  Delaware  litigation  or  further  order  of  the  Court.  On  April  4,  2019,  the  Eastern  Caribbean
Supreme  Court,  Court  of  Appeal  issued  an  order  that  restrains  the  Company  from  taking  further  action  under  its  Rights  Agreement,  including  the
distribution  of  the  previously  issued  Exchange  Shares  to  the  holders  of  valid  Rights,  until  the  conclusion  of  1Globe  Capital,  LLC’s  appeal  of  the
December 19, 2018 Judgment of the High Court of Justice of Antigua and Barbuda. On April 8, 2019, the Delaware Chancery Court stayed the Delaware
litigation pending the outcome of 1Globe’s appeal of the Antigua Judgment. The Company cannot predict whether an ultimate outcome will be favorable
or unfavorable, nor estimate the amount or range of potential loss (if any) at this time.

F-30

 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

On March 5, 2018, the Company also filed a lawsuit in the United States District Court for Massachusetts alleging violations of Section 13(d) of the
Securities Exchange Act of 1934 by 1Globe and The Chiang Li Family. The lawsuit alleges, among other things, that the defendant shareholders failed to
make required disclosures on Schedule 13D regarding their intentions to attempt to replace the Company's board of directors.

On April 9, 2018, the Company received a document request from SEC requesting all of the Company’s documents concerning 1Globe, the Chiang Li
Family, OrbiMed, certain other shareholders, and their affiliates. The Company has been cooperating with the SEC. The Company understands the SEC
is  investigating  whether  1Globe,  and  possibly  other  shareholders,  violated  the  U.S.  securities  laws.  The  Company  does  not  have  any  information  to
suggest the SEC is investigating the actions of the Company or its officers and directors.

On May 21, 2018, 1Globe answered and filed counterclaims against the Company and certain of its executives, alleging violations of Section 10(b) of the
Exchange Act and various state law claims. In response to the Company’s motion to dismiss 1Globe’s counterclaims, on August 1, 2018, 1Globe filed
amended counterclaims against the Company and certain of its executives, alleging violations of Section 10(b) of the Exchange Act and Rule 10b-5, as
well as state law claims of abuse of process, fraudulent misrepresentation, negligent misrepresentation, and aiding and abetting such violations, primarily
arising out of allegedly false and/or misleading statements made by the Company regarding its business, operational, and financial results.

On August 17, 2018, the Massachusetts Court granted a consent motion to extend the deadline for the Company’s response to 1Globe’s counterclaims
(and for any subsequent opposition by 1Globe) until after the Antigua Court issued a ruling in the matter captioned 1Globe Capital, LLC and Sinovac
Biotech Ltd., Claim No. ANUHCV 2018/0120. On December 19, 2018, the Antigua Court issued a judgment, which 1Globe appealed on January 29,
2019. Per the Massachusetts Court’s order, the parties have filed periodic status reports regarding the pending court proceedings in Antigua. No date for
the Company’s response to 1Globe’s counterclaims has been set. The Company is vigorously pursuing this lawsuit; however, the Company cannot predict
whether an ultimate outcome will be favorable or unfavorable, nor estimate the amount or range of potential loss (if any) at this time.

Also on August 1, 2018, 1Globe filed a motion for preliminary injunction seeking to enjoin the Company from, inter alia, altering the capital structure of
the Company. On October 15, 2018, the Massachusetts Court denied 1Globe’s motion. On November 14, 2018, 1Globe filed an appeal of the denial of its
motion for preliminary injunction to the United States Court of Appeals for the First Circuit. On January 10, 2019, 1Globe filed a motion to hold its
appeal in abeyance pending the outcome of its separate appeal of the Antigua Court’s judgment, which the Company opposed. In October 2019, 1Globe
voluntarily dismissed the appeal.

Separately, Heng Ren Investments LP (“Heng Ren”) filed suit against the Company and Weidong Yin for alleged breach of fiduciary duties and wrongful
equity dilution on May 31, 2019, in Massachusetts state court. The Company removed the matter from state court to the United States District Court for
the  District  of  Massachusetts.  Heng  Ren  alleged  that  Mr.  Yin  breached  fiduciary  duties  owed  to  minority  shareholders,  that  the  Company  aided  and
abetted  breaches  of  fiduciary  duties,  and  that  both  the  Company  and  Mr.  Yin  engaged  in  wrongful  equity  dilution.  Heng  Ren  requested  damages,
attorneys’ fees, and prejudgment interest. On September 14, 2020, the Company filed a motion to dismiss Heng Ren’s claims and the court’s decision on
that motion is pending as of the date of this annual report.

On  March  13,  2018,  1Globe  filed  a  complaint  against  the  Company  in  the  Antigua  Court.  The  complaint  seeks  a  declaration  that  the  five  persons
purportedly proposed on the Non-Public Submission at the 2017 AGM were elected as directors of the Company at that meeting, an order of the Antigua
Court that those directors be installed as the Company’s board of directors, and a declaration that any actions taken on behalf of the Company at the
direction of the board of directors since the 2017 AGM are null and void. On April 10, 2018, 1Globe filed a notice of application in the Antigua Court
seeking  an  order  declaring  the  result  of  the  disputed  election,  an  urgent  order  restraining  the  Company’s  board  of  directors  from  acting,  pending
determination  of  the  dispute,  including  acting  to  initiate  or  continue  litigation  against  the  Shareholder  Group,  and  other  related  relief.  The  Company
attended the first hearing on May 9, 2018. In July 2018, the Antigua court heard an application by 1Globe for interim injunctive relief preventing the
Company from exercising its rights under the Rights Agreement. This application was unsuccessful, but the judge set an expedited timetable to trial. The
trial of the matter took place from December 3 to 5, 2018. On December 19, 2018, the judge handed down his judgment, finding in Sinovac’s favor in
full, dismissing 1Globe’s claim and declaring that the Rights Agreement was validly adopted as a matter of Antigua law. On January 29, 2019, 1Globe
filed  a  Notice  of  Appeal.  On  March  4,  2019,  1Globe  filed  an  application  for  urgent  interim  relief,  seeking  an  injunction  to  prevent  Sinovac  from
continuing to implement its Rights Agreement until the resolution of the appeal. This urgent interim relief application was heard on April 4, 2019, at
which the Court of Appeal made an order restraining the Company in similar terms to the Delaware Court order of March 6, 2019, together with restraint
from operating the Rights Agreement in any way that affects 1Globe’s rights or shareholding until determination of the appeal. 1Globe’s appeal of the
Antigua Court’s Judgment was heard on September 18, 2019, and the appeal decision is pending as of the date of this annual report. The Company cannot
predict or estimate an outcome or economic burden for this case at this time.

F-31

 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

18.

Preferred and Common Stock

Share Capital

On February 22, 2019, pursuant to the Rights Agreement, the Company’s board of directors elected to exchange the approximately 42.4 million valid and
outstanding Rights held by the Company’s shareholders (not including the Collaborating Shareholders) for a combination of 27,777,341 common shares
and 14,630,813 Series B Convertible Preferred Shares (the “Preferred Shares”), all of which the Company issued into a trust on February 22, 2019 for the
benefit  of  the  holders  of  the  valid  and  outstanding  Rights  under  the  Company’s  Rights  Agreement.  The  Preferred  Shares  issued  share  equally  in  all
dividends and distributions made on the common shares and vote together with the common shares on all matters brought before the shareholders, in
each  case  on  an  as-converted  basis  and  subject  to  applicable  law.  Each  preferred  share  is  convertible  into  one  common  share  at  the  option  of  the
Company, or automatically upon a successful shareholder vote to increase the authorized number of common shares of the Company. Until the Preferred
Shares  are  converted  into  common  shares  (or  until  the  Preferred  Shares  are  listed  on  a  nationally  recognized  securities  exchange),  they  will  earn  a
preferred dividend equal to $0.41 per share per annum, payable quarterly in arrears. As of December 31, 2020, there were 14,630,813  preferred  stock
issued and outstanding, and the Company accrued $6,015 in preferred stock dividend for the year ended December 31, 2020.

Each share of common stock is entitled to one  vote  per  share  and  is  entitled  to  dividends  when  declared  by  the  Company’s  board  of  directors.  As  of
December 31, 2020 and 2019, there were 99,294,743 and 98,903,243 shares of common stock outstanding, respectively.  

In  2018,  the  Company  issued  1,219  shares  of  common  stock  on  the  exercise  of  employee  stock  options  with  exercise  price  of  $2.37  per  share  and
107,822 shares of common stock on the exercise of employee stock options with exercise price of $4.98 per share, for 156,300 shares of stock options
exercised under cashless excise with total proceeds of $3. In 2018, the Company cancelled 51,500 restricted shares previously issued to employees of the
Company due to employee termination. On July 2, 2018, in connection with a private placement transaction, the Company issued 11,800,000 shares of
common stock at $7.35 per share with a nine months restricted period. The Company received net proceeds of $85,299 after deducting offering expenses
of approximately $1,431.

In 2019, the Company issued 13,500 shares of common stock on the exercise of employee stock options with exercise price of $4.98 per share. In 2019,
the Company cancelled 27,000 restricted shares previously issued to employees of the Company due to employee termination.

In 2020, the Company issued 401,500 shares of common stock on the exercise of employee stock options with exercise price of $4.98 per share. In 2020,
the Company cancelled 10,000 restricted shares previously issued to employees of the Company due to employee termination.

19.

Stock Options

(a) Stock Option Plan

The board of directors approved a stock option plan (the “2003 Plan”) effective on November 1, 2003, pursuant to which directors, officers, employees
and consultants of the Company are eligible to receive grants of options for the Company’s common stock. The 2003 Plan expires on November 1, 2023.
Up to 10% of the Company’s then outstanding common stocks were reserved for issuance under the 2003 Plan. As of December 31, 2020, 42,800 shares
of common stock under the 2003 Plan remain available for issuance. Each stock option entitles its holder to purchase one share of common stock of the
Company. Options may be granted for a term not exceeding 10 years from the date of grant. The 2003 Plan is administered by the board of directors.

In December 2011, the Company granted 767,000 options to employees with an exercise price of $2.37, being the quoted market price of the Company’s
shares at the time of grant. 10% of the options vest every three months from December 26, 2012 to March 26, 2015 and expired on December 25, 2017.
This grant was fully vested on March 26, 2015.

On August 22, 2012, the board of directors approved a new stock option plan (the “2012 Plan”), which allowed the Company to issue up to 4,000,000
options for common shares and restricted shares of the Company to directors, officers, employees and consultants of the Company. Each stock option
entitles its holder to purchase one share of common stock of the Company. Options and restricted shares may be granted for a term not exceeding 10
years from the date of grant. The 2012 Plan is administered by the board of directors. The 2012 Plan will expire on August 22, 2022. Any awards that are
outstanding on August 22, 2022 will remain in force according to the terms of the 2012 Plan and the applicable award agreement.

F-32

 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

On May 1, 2015, the Company granted 729,000 restricted shares (the “Restricted Shares”) at par value of $0.001 and 1,341,000 options (the “Options”)
under the 2012 Plan with an exercise price of $4.98, being the quoted market price of the Company’s shares at the time of grant. The options will expire
on April 30, 2023. One-fifth of the Restricted Shares and Options shall vest on the first, second, third, fourth and fifth anniversaries of date of grant,
respectively. The Restricted Shares are not subject to any restriction on transfer and repurchase after they are vested. 20% of the Options and Restricted
Shares  were  vested  on  May  1,  2016.    On  December  16,  2016, the  board  of  directors  approved  that  an  additional  30%  of  the  Options  to  be  vested  on
December 16, 2016, and restrictions of an additional 30% of the Restricted Shares were removed on December 16, 2016. On April 25, 2018, the board of
directors approved that all remaining unvested Options and Restricted Shares that were granted on May 1, 2015 were fully vested on April 25, 2018.

On March 7, 2018, the Company granted 2,000,000 restricted shares (the “2018 Restricted Shares”) at par value of $0.001 under the 2012 Plan, to certain
officers and employees of the Company. 60% of the 2018 Restricted Shares will vest on the third anniversary of the date of grant, the remaining 40%
2018 Restricted Shares will vest on the fourth and the fifth anniversary evenly.

On September 16, 2020, the board of directors approved an employee share ownership plan (the “2020 ESOP”), where options were granted to officers
and  employees  of  the  Company  the  right  to  purchase  up  to  a  15%  equity  interest  in  Sinovac  LS  upon  exercise  of  the  options.  The  options  have  an
exercise price of $12,000 that vested immediately and have a life of 8 years.

(b) Valuation Assumptions

The Company used the Black-Scholes option-pricing model in determining the fair value of stock options issued under the 2020 ESOP, and valuation
assumptions include expected volatility of 73.22%, an expected life of 2 years, a risk-free interest rate of 2.72%, and a dividend rate of 0%. As Sinovac
LS is a private company with limited equity transactions in the past, expected volatility is estimated based on share price volatilities of a group of public
traded  development  stage  vaccine  companies  and  development  stage  East  Asian  pharmaceutical  companies  that  most  closely  represent  the  stage  of
Sinovac LS at the time. The expected life represents the amount of time that options granted are expected to be outstanding based on forecasted exercise
behavior. The risk-free interest rate is based on the rate at grant date of Chinese government bond yield with an average term equal to the expected term
of the option. There were no options granted in the years ended December 31, 2019 and 2018.

(c) Share-based Payment Award Activity

A summary of the Company’s stock options activity for the 2003 and 2012 Plan is presented below:

Outstanding as of January 1, 2020
Granted
Exercised
Forfeited / Expired
Outstanding as of December 31, 2020

Vested and expected to vest at December 31, 2020

Exercisable as of December 31, 2020

Weighted
Average
Exercise Price
($/option)

Aggregate
Intrinsic
Value ($)

Number
of Options

785,500    $

—   
(401,500)  
(4,000)  
380,000    $

380,000    $

380,000    $

4.98    $
—   
4.98   
—   
4.98    $

4.98   

4.98    $

1,170,395 
— 
— 
— 
566,200 

566,200 

566,200 

A summary of the Company’s non-vested restricted share activity for the 2012 plan is presented below:

Non-vested as of January 1, 2020
Granted
Vested
Forfeited
Non-vested as of  December 31, 2020

F-33

Number
of Non-Vested
Restricted
Shares

Weighted
Average
Grant Date
Fair Value ($)

1,973,000    $

—   
—   
(10,000)  
1,963,000    $

8.25 
— 
— 
8.25 
8.25 

 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

As at December 31, 2020

Exercise
Prices
($/option)

  $

4.98   

Number of
Options

Outstanding    
380,000   
380,000   

Remaining
Average
Contractual
Life (years)

Average
Exercise Price
($/option)

Number
of Options
Exercisable

Remaining
Contractual
Life (years)

Average
Exercise Price
($/option)

2.33   
2.33   

4.98   
4.98   

380,000    $
380,000   

2.33    $
2.33   

4.98 
4.98 

The grant date fair value of options issued under the 2020 ESOP is $7,200 and the options can acquire 15% of Sinovac LS’s equity interest upon exercise.
The options were fully exercised in 2020. The aggregate intrinsic value of the options exercised under the 2020 ESOP was $3,000.

Share-based compensation expense, included in cost of sales, selling, general and administrative expenses and R&D expenses is charged to operations
over the vesting period of the options using the straight-line amortization method. The share-based compensation expense was $10,203 in 2020 (2019 -
$3,003, 2018 - $4,305 ). As of December 31, 2020, there was $nil and $6,555 of unrecognized compensation cost related to non-vested stock options and
non-vested restricted shares, respectively, granted under the 2012 Plan. The unrecognized compensation cost related to the non-vested restrict shares will
be recognized over a weighted average period of 26 months.

The aggregate intrinsic value of the Company’s stock options is calculated as the difference between the exercise price of the options and the quoted price
of the common shares that were in the money. The aggregate intrinsic value of the Company’s stock options exercised under the 2003 Plan and the 2012
Plan was $nil and $598 for year ended December 31, 2020, respectively, determined as of the date of option exercise (2019 - $27, 2018 - $426).

The estimated fair value of stock options vested during the year ended December 31, 2020 was nil (2019 - $nil, 2018 – $1,135).

20.

Statutory Surplus Reserves

Pursuant  to  Chinese  company  law  applicable  to  foreign  investment  companies,  the  Company’s  PRC  subsidiaries  are  required  to  maintain  statutory
surplus reserves. The statutory surplus reserves are to be appropriated from net income after taxes, and should be at least 10% of the after tax net income
determined in accordance with accounting principles and relevant financial regulations applicable to PRC enterprises (“PRC GAAP”). The Company has
an  option  of  not  appropriating  the  statutory  surplus  reserve  after  the  statutory  surplus  reserve  is  equal  to  50%  of  the  subsidiary’s  registered  capital.
Statutory surplus reserves are recorded as a component of shareholders’ equity. The statutory surplus reserve as of December 31, 2020 is $50,377 (2019 -
$33,533).

Sinovac Biomed have not accumulated any profit since inception. No appropriation to the statutory surplus reserves and staff welfare and bonus were
made.

Dividends declared by the Company’s PRC subsidiaries are based on the distributable profits as reported in their statutory financial statements reported in
accordance with PRC GAAP, which differ from the results of operations reflected in the consolidated financial statements prepared in accordance with
US GAAP. The Company’s ability to pay dividends is primarily dependent on the Company receiving distributions of funds from its PRC subsidiaries.
As of December 31, 2020, the Company has $nil dividend payable to the common shareholders (December 31, 2019 - $nil), and has $11,143 dividend
payable to preferred shareholders (December 31, 2019 - $5,128).

Under PRC laws and regulations, statutory surplus reserves are restricted to set-off against losses, expansion of production and operation and increasing
registered  capital  of  the  respective  company,  and  are  not  distributable  other  than  upon  liquidation.  Staff  welfare  and  bonus  funds  are  restricted  to
expenditures for the collective welfare of employees. The reserves are not allowed to be transferred to the Company in terms of cash dividends, loans or
advances,  nor  are  they  allowed  for  distribution  except  under  liquidation.  Amounts  restricted  include  the  PRC  subsidiaries’  paid-in  capital,  additional
paid-in  capital  and  statutory  surplus  reserves  of  the  Company’s  PRC  subsidiaries  totaling  $442,562  (RMB  2,947  million)  as  of  December  31,  2020
(December  31,  2019,  $85,446  (RMB  588  million)).  Further,  foreign  exchange  and  other  regulations  in  the  PRC  further  restrict  the  Company’s  PRC
subsidiaries  from  transferring  funds  to  the  Company  in  the  form  of  loans,  advances  or  cash  dividends.  As  of  December  31,  2020,  amounts  restricted
include the net assets of the Company’s PRC subsidiaries, which amounted to $698,552 (December 31, 2019 - $225,014).

F-34

 
 
 
   
   
   
   
   
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

21.

Earnings per Share

The  following  table  sets  forth  the  computation  of  basic  and  diluted  income  attributable  to  common  shareholders  of  Sinovac  per  share  (in  thousands,
except for number of shares and per share data):

For the year ended December 31
2019

2018

2020

Numerator
Net income
Less: Income attributable to non-controlling interests
Income attributable to shareholders of Sinovac
Less: Preferred stock dividends
Net income attributable to shareholders of Sinovac
Net income attributable to shareholders of Sinovac for computing diluted net
   income per share
Denominator
Basic weighted average number of common shares outstanding
Dilutive effect of stock options and preferred shares
Diluted weighted average number of common shares outstanding
Earnings per share
Basic net income per share
Diluted net income per share

  $

185,179    $
74,810   
110,369   
6,015   
104,354   

65,215    $
20,286   
44,929   
5,128   
39,801   

36,111 
14,329 
21,782 
— 
21,782 

110,369   

44,929   

21,782 

98,897,345   
14,765,017   
113,662,362   

94,876,946   
14,815,013   
  109,691,959   

64,727,146 
250,408 
64,977,554 

1.06   
0.97   

0.42   
0.41   

0.34 
0.34 

As the Company announced on February 22, 2019, the Company’s Board of Directors determined that certain shareholders became Acquiring Persons,
and a Trigger Event occurred under the Rights Agreement. As a result, 27,777,341 new common and 14,630,813 preferred shares of the Company were
issued into a trust for the benefit of the holders of the valid and outstanding Rights. Releasing these shares from the trust is contingent on an outcome
from the Company's legal proceeding in Antigua. Without the effect of the implementation of the Rights Agreement and the newly issued common and
preferred shares, basic weighted average number of common shares outstanding and diluted weighted average number of common shares outstanding
would be 71,120,004 and 85,885,021, respectively. And the basic and diluted earnings per share for 2020 would be $1.55 and $ 1.29, respectively.

22.

Segment Information

The  Company  operates  exclusively  in  the  biotechnology  sector.  The  Company’s  business  is  considered  as  operating  in  one  segment.  The  Company’s
Chief Executive Officer is the chief operating decision maker and reviews the consolidated results of operations when making decisions about resources
allocation and assessing performance of the Company as a whole. All revenues are generated from the subsidiaries located in China. Total long-lived
assets  of  $208,618  including  prepaid  land  lease  payments,  property,  plant  and  equipment  are  all  located  in  mainland  China  (December  31,  2019  -
$82,275). The Company’s total assets by geographic location are as follows:

Assets
Mainland China
Outside Mainland China
Total Assets

December 31,

2020

2019

  $

  $

1,824,380    $
76,946   
1,901,326    $

384,297 
68,002 
452,299 

F-35

 
 
 
 
 
 
 
   
   
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
    
 
  
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

The Company’s revenues by market type are as follows:

For the year ended December 31,
2019

2018

2020

Sales
EPI
Private Pay
Export
Total Sales

  $

  $

96,799    $
268,821   
145,004   
510,624    $

6,896    $

220,217   
18,940   
246,053    $

10,357 
204,764 
14,529 
229,650 

The Company’s revenues are attributed to geographic locations as follows:

For the year ended December 31,
2019

2018

2020

Sales
Mainland China
Outside Mainland China
Total Sales

  $

  $

365,620    $
145,004   
510,624    $

227,113    $
18,940   
246,053    $

215,121 
14,529 
229,650 

F-36

 
 
 
 
 
 
 
   
   
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
    
 
    
 
  
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

23.

Collaboration Agreements

(a) On March 12, 2009, the Company entered into a technology transfer agreement (with an amendment agreement entered into on December 14, 2011)
with Tianjin CanSino Biotechnology Inc. (“Tianjin Cansino”). According to the agreement, Tianjing Cansino will transfer the technology related to
pneumococcal vaccine to the Company and jointly develop the technology with the Company. The collaboration term under the technology transfer
agreement is from March 12, 2009 to eight years after the first sale of the vaccine developed under the technology transfer agreement in the Chinese
market.

Under the terms of the technology transfer agreement, the Company will make milestone payments of up to $3,000 and royalty payments ranging
from 6% to 10% of net sales in China. Both parties will work together to develop international markets for the products. On November 17, 2009 and
December  14,  2011,  two  amendment  agreements  were  signed  for  the  payment  of  $300 for the transfer of an additional six  serotypes  and  related
technology. As of December 31, 2016, the Company made total milestone payments of $1,200 ($1,000 under the agreement dated as of March 12,
2009  and  $200  under  the  amendment  agreement  dated  as  of  December  14,  2011).  The  remaining  milestone  payments  will  be  paid  when  the
Company achieves each specific milestone, which includes obtaining clinical trials approval, completing clinical trials and achievement of desired
results, and achievement of commercial sales.

On  January  29,  2015,  the  Company  entered  into  the  third  amendment  to  the  technology  transfer  agreement  dated  March  12,  2009  and  the  two
amendment  agreements  dated  November  17,  2009  and  December  24,  2011,  respectively.  By  entering  into  this  third  amendment,  the  technology
transfer  agreement  was  amended  to  be  a  licensing  agreement.  The  remaining  milestone  and  royalty  payments  under  the  technology  transfer
agreement  have  been  reduced.  Both  the  Company  and  Tianjin  Cansino  are  free  to  develop  pneumococcal  vaccines  or  to  collaborate  with  other
companies for the same purpose. The Company did not make any payment or recorded any research and development expenses for the years ended
December 31, 2020, 2019 and 2018, respectively.

(b) On August 18, 2009, the Company entered into a patent license agreement with the National Institutes of Health (“NIH”), an agency of the United
States Public Health Services within the Department of Health and Human Services. NIH has granted us a non-exclusive license to import and use
certain  Rotavirus  Strains  and  Monoclonal  Antibodies  (“Biological  Materials”)  to  develop  an  oral  rotavirus  vaccine  and  produce  the  vaccine  in
commercial sales and launch into market. NIH has also granted us the right to use certain documentation associated with the Biological Materials for
this research and development project. The term of the license under the patent license agreement is from August 18, 2009 to the later of (a) the
expiration  of  all  royalty  obligations  under  the  licensed  rights  where  such  rights  exist  and  (b)  eight years  after  the  first  commercial  sale  by  the
Company, unless the agreement is terminated earlier per the provisions included therein.

The Company has agreed to pay NIH a license issue royalty of $80 upon execution of the agreement and a non-refundable minimum annual royalty
of $8, and royalty payments on net sales ranging from 1.5% to 4% depending on the sales territory and the customers. The Company has also agreed
to  pay  NIH  benchmark  royalties  of  $330  upon  achieving  each  benchmark  as  specified  in  the  patent  license  agreement,  including  completion  of
clinical trials, obtaining regulatory approval for marketing, and achievement of commercial sales. The Company recorded a license royalty of $1 for
the year ended December 31, 2020 as R&D expenses (2019 - $1, 2018 - $16).

(c) On  August  15,  2011,  the  Company  licensed  from  Medimmune,  LLC,  a  US  based  pharmaceutical  company,  certain  non-exclusive  rights  to  use
patented reverse genetics technology pertaining to H5N1 influenza virus strain production for vaccines. The Company has agreed to pay an upfront
license fee and milestone payments of up to an aggregate of $9.9 million based upon achievement of cumulative net sales of licensed products in
China (including Hong Kong and Macau), as well as royalty payments in single digit of net sales of the licensed products in China (including Hong
Kong and Macau). License fee and royalties of $3,400 accrued at the end of 2011 were paid in 2012. In 2013, the Company obtained a new stockpile
order of 3 million doses of H5N1 vaccines from the Chinese government. The Company accrued a royal payment of $9 as of December 31, 2018,
which was paid in 2019. The Company did not accrue any royalty payment in 2020 and 2019.

(d) On April 3, 2014, the Company entered into a non-exclusive license agreement (the “Agreement”) with The Institute for Translational Vaccinology
(“INTRAVACC”), a governmental institute working under the Dutch Ministry of Public Health, Welfare and Sports, to develop and commercialize
the Sabin Inactivated Polio Vaccine (“sIPV”) for distribution in China and other countries. The Company expects to develop and commercialize the
vaccine in China, as well as seeking regulatory approval in other countries. The agreement has a term of 50 years.

The Company has agreed to pay INTRAVACC up to $2,406 (€1.5 million), net of PRC tax, including an entrance fee and milestone payments upon
achieving specific milestones. The Company has also agreed to pay royalty payments in a single digit percentage of net sales generated worldwide
from the product or products developed under the Agreement. The Company recorded a milestone fee of $35 (€30,000) and $611 (€0.5 million) for
the year ended December 31, 2020 and 2018 as research and development expense. There was no expense incurred or paid to INTRAVACC for the
year ended December 31, 2019.

F-37

 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

(e)

(f)

(g)

(h)

In September 2015, Sinovac Dalian entered into a technology transfer and supply agreement with GlaxoSmithKline Biologicals SA, or GSK, to use
GSK’s measles seeds to develop combination vaccines containing measles for the China market. Under this agreement, GSK agreed to transfer its
measles  seeds,  provide  reasonable  assistance  and  relevant  technical  materials  to  Sinovac  Dalian  for  the  purpose  of  developing  and  producing
combination  vaccines  containing  measles.  The  Company  did  not  make  any  payment  for  purchasing  measles  seeds  to  GSK  for  the  year  ended
December 31, 2020, 2019 and 2018.

In  June  2020,  the  Company  entered  into  a  clinical  development  collaboration  agreement  with  Instituto  Butantan,  a  leading  Brazilian  producer  of
immunobiologic  products,  to  advance  the  clinical  trials  of  CoronaVac,  Sinovac’s  inactivated  vaccine  candidate  against  COVID-19  to  Phase  III.
Through the collaboration, Instituto Butantan sponsored our phase III clinical trials in Brazil. A series of agreements completed or to be completed
between  the  parties  help  establish  extensive  collaboration  that  includes  technology  licensing,  market  authorization  and  commercialization  of
CoronaVac. In this way, Instituto Butantan can ensure that the Brazilian population has access to this vaccine.

In September 2020, the Company signed two agreements with PT Bio Farma, a leading biopharmaceutical company in Indonesia, for the supply,
local production and technology licensing in respect of CoronaVac. Under these agreements the Company will supply PT Bio Farma bulk vaccine to
enable the latter to produce at least 140 million doses of CoronaVac in Indonesia.

In  November  2020,  the  Company  signed  two  agreements  with  KEYMEN  Ilac  Sanayi.  Ve  Tic.  A.S.  (“KEYMEN”),  an  active  in  supplying  of
pharmaceutical products in Turkey, for the supply, local production and technology and know-how licensing of CoronaVac. Under the agreements
the  Company  and  KEYMEN  will  cooperate  to  enable  local  filling  and  packaging  from  the  bulk  vaccine  supplied  by  the  Company  in  designated
facilities in Turkey.

24.

Subsequent Events

Aside from those disclosed in note 17 to the financial statements, no other reportable events or transactions take place after the balance sheet date.

F-38

 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

25.

Condensed Financial Information of the Parent Company

ASSETS
Current assets
Cash and cash equivalents
Prepaid expenses and other receivables
Amount due from subsidiaries
Dividend receivables
Total current assets
Investment in subsidiaries
Total assets

LIABILITIES AND EQUITY
Current liabilities
Accrued expenses and other payables
Amount due to subsidiaries
Dividend payable
Total current liabilities
Total liabilities
EQUITY
Preferred stock
Authorized 50,000,000 shares at par value of $0.001 each
Issued and outstanding: 14,630,813 (2019 – 14,630,813)
Common stock
Authorized: 100,000,000 shares at par value of $0.001 each
Issued and outstanding: 99,294,743 (2019 – 98,903,243)
Additional paid-in capital
Accumulated other comprehensive income (loss)
Retained earnings
Total shareholders' equity
Total liabilities and equity

Balance Sheets

December 31,

2020

2019

  $

  $

  $

  $

  $

56,666    $
2,461   
93,665   
3,195   
155,987   
609,057   
765,044    $

4,236    $
3,193   
11,143   
18,572   
18,572    $

15   

99   

531,815   
19,925   
194,618   
746,472   
765,044    $

70,201 
1,166 
86,006 
3,195 
160,568 
149,087 
309,655 

1,544 
8,964 
5,128 
15,636 
15,636 

15 

99 

207,962 
(4,321)
90,264 
294,019 
309,655 

Statements of Comprehensive Income

Selling, general and administrative expenses
Total operating expenses
Loss from operations
Other expenses
Interest income
Equity earnings of subsidiaries, net of tax
Net income
Preferred stock dividends
Net income attributable to common shareholders
Net income
Foreign currency translation adjustments
Total comprehensive income

For the year ended December 31
2019

2018

2020

7,013   
7,013   
(7,013)  
(23)  
532   
116,873   
110,369   
(6,015)  
104,354   
110,369   
24,246   
134,615    $

7,750   
7,750   
(7,750)  
(16)  
871   
51,824   
44,929   
(5,128)  
39,801   
44,929   
(2,222)  
42,707    $

15,615 
15,615 
(15,615)
(13)
798 
36,612 
21,782 
— 
21,782 
21,782 
(9,174)
12,608 

  $

F-39

 
 
 
 
 
 
 
   
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SINOVAC BIOTECH LTD.
Notes to Consolidated Financial Statements
(Expressed in thousands of U.S. dollars, unless otherwise stated)

Statements of Cash Flows

Cash flows used in operating activities
Net income
Adjustments to reconcile net loss to net cash provided by (used in)
   operating activities:
- Share-based compensation
- Equity in earnings of subsidiaries
Changes in:
- Amount due from subsidiaries
- Prepaid expenses and other receivables
- Dividend receivables
- Amount due to subsidiaries
- Accrued expenses and other payables
Net cash used in operating activities
Cash flows provided by financing activities
- Proceeds from issuance of common stock, net of share issuance costs
- Proceeds from shares subscribed
Net cash provided by financing activities
Increase (decrease) in cash and cash equivalents
Cash and cash equivalents, beginning of year
Cash and cash equivalents, end of year

For the year ended December 31
2019

2018

2020

  $

110,369    $

44,929    $

21,782 

3,003   
(116,873)  

(7,659)  
(1,295)  
—   
(5,771)  
2,692   
(15,534)  

1,999   
—   
1,999   
(13,535)  
70,201   
56,666    $

3,003   
(51,824)  

(3,425)  
172   
—   
(7,584)  
(119)  
(14,848)  

—   
—   
—   
(14,848)  
85,049   
70,201    $

445 
(36,612)

(7,624)
(861)
18,085 
2,602 
(276)
(2,459)

85,304 
64 
85,368 
82,909 
2,140 
85,049 

  $

(a) Basis of presentation

The condensed financial information has been prepared using the same accounting policies as set out in the accompanying consolidated financial statements except
that the Company used the equity method to account for investment in its subsidiaries.

The Company records its investment in its subsidiaries under the equity method of accounting. Such investment is presented on the balance sheets as “Investment
in subsidiaries” and share of their income (loss) as “Equity earnings (losses) of subsidiaries” in the statements of comprehensive income (loss).

Each  of  the  Company’s  PRC  subsidiaries  has  restrictions  on  its  ability  to  pay  dividends  to  the  Company  under  PRC  laws  and  regulations  (Note  20).  The
subsidiaries did not pay any dividends to the Company for the years presented.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted by
reference to the consolidated financial statements.

(b) Commitments

The Company does not have any significant commitments or long-term obligations as of any of the periods presented, except for those disclosed in the consolidated
financial statements (notes 17 and 23).

F-40