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Sinovac Biotech, Ltd.

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FY2011 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 

12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 

OR 

  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 

SECURITIES EXCHANGE ACT OF 1934 
For the fiscal year ended December 31, 2011 

OR 

  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 

SECURITIES EXCHANGE ACT OF 1934 

For the transition period from                       to                         

OR 

  SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF 

THE SECURITIES EXCHANGE ACT OF 1934 

Date of event requiring this shell company report . . . . . . . . . . . . . . . . . . . 

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. 39 Shangdi Xi Road, 
Haidian District, Beijing 100085 
People’s Republic of China 
(Address of principal executive offices) 

Nan Wang 
Interim  Chief Financial Officer 
No. 39 Shangdi Xi Road, 
Haidian District, Beijing 100085 
People’s Republic of China 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Tel: +86-10-8289-0088 
Fax: +86-10-6296-6910 
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 

   Name of each exchange on which registered 
NYSE Amex (to November 13, 2009) 
NASDAQ Global Market (from November 
16, 2009) 
NASDAQ Global Select Market (from 
January 3, 2011) 

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

None 
(Title of Class) 

  
  
  
  
  
  
 
Table of Contents 

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

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. 

54,773,961 common shares as of December 31, 
2011  

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 and posted on its corporate 
Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 
of Regulation S-T during the preceding 12 months (or  such shorter period that the registrant was 
required to submit and post such files). 

Yes    No  

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-
accelerated filer. See definition of ―accelerated filer and large accelerated filer‖ in Rule 12b-2 of the 
Exchange Act. (Check one): 

Large accelerated filer  

Accelerated filer  

Non-accelerated filer  

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  

Other  

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

Item 17    Item 18  

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

Yes    No  

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

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

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Yes    No  

  
  
 
Table of Contents 

INTRODUCTION  

PART I 

TABLE OF CONTENTS 

ITEM 1.  IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS  
ITEM 2.  OFFER STATISTICS AND EXPECTED TIMETABLE  
ITEM 3.  KEY INFORMATION  
ITEM 4.  INFORMATION ON THE COMPANY  
UNRESOLVED STAFF COMMENTS  
ITEM 
4A.   

ITEM 5.  OPERATING AND FINANCIAL REVIEW AND PROSPECTS  
ITEM 6.  DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES  
ITEM 7.  MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS  
ITEM 8.  FINANCIAL INFORMATION  
ITEM 9.  THE OFFER AND LISTING  
ITEM 
10. 
ITEM 
11. 
ITEM 
12. 

DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES  

ADDITIONAL INFORMATION  

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK  

PART II 

ITEM 
13. 
ITEM 
14. 
ITEM 
15. 
ITEM 
16A.  
ITEM 
16B. 
ITEM 
16C.   
ITEM 

16D.  

ITEM 
16E.  
ITEM 
16F.  
ITEM 

16G.  

PART III 

ITEM 
17. 
ITEM 
18. 
ITEM 
19. 

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  

FINANCIAL STATEMENTS  

FINANCIAL STATEMENTS  

EXHIBITS  

i 

1 

1 

1 
1 
1 
22 

37 
37 
52 
57 
58 
59 

60 

68 

69 

69 

69 

69 

70 

71 

71 

71 

72 

72 

72 

72 

72 

72 

72 

72 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

INTRODUCTION 

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

requires, 

                  ―Sinovac,‖ ―we,‖ ―us,‖ ―our company,‖ and ―our‖ refer to Sinovac Biotech Ltd., its predecessor 

entities and its consolidated subsidiaries  

                  ―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 general 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. 

Our business is primarily conducted in China, and the financial records of our PRC subsidiaries are 

maintained in renminbi, their functional currency. However, we use the U.S. dollar as our reporting 
currency. At the transaction date, each asset, liability, revenue and expense is translated into the 
functional currency by the use of the exchange rate in effect at that date. At the period end, foreign 
currency monetary assets, and liabilities are re-evaluated 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 operations. 

For your convenience, this annual report contains translations from renminbi to U.S. dollars  made at 

the bid rate reported by the Oanda Corporation on December 31, 2011, which was RMB6.3647 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 10, 2012, the bid rate was RMB 6.3286 to $1.00. 

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 income data for the fiscal years ended 

December 31, 2009, 2010 and 2011 and consolidated balance sheet data as of December 31, 2010 and 
2011 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 income data 
for the fiscal years ended December 31, 2007 and 2008 and consolidated balance sheet data as of 
December 31, 2007, 2008 and 2009 have been derived from our audited consolidated financial 
statements that are not included in this annual report. 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Our historical results do not necessarily indicate results expected for any future periods. The 
selected consolidated financial data should be read in conjunction with our audited consolidated 
financial statements and related notes and Item 5 ―Operating and Financial Review and Prospects‖ 
below. Our audited consolidated financial statements are prepared and presented in accordance with 
U.S. GAAP. 

1 

  
 
Table of Contents 

Statement of income (loss) data 

Sales 
Cost of sales(1) 
Gross profit 
Operating expenses: 

Selling, general and administrative 

expenses(2) 

Provision for doubtful accounts 
Research and development expenses 
Depreciation of property, plant and 
equipment and amortization of 
licenses and permits 
Government grants recognized in 

income  
Total operating expenses 
Operating income (loss) 
Interest and financing expenses 
Interest income 
Other income (expenses) 
Loss on disposal and write down of 

equipment 

Income (loss) before income taxes and 

non-controlling interests 
Income tax recovery (expenses) 
Consolidated net income (loss) 
Loss (income) attributable to non-

controlling interests(3) 

Net income (loss) attributable to the 

stockholders 

Earnings (loss) per share 
- basic 
- diluted 
Weighted average number of common 

shares outstanding 

- basic 
- diluted 

2008 

2007 

Year ended December 31, 
2009 
(in thousands, except share and per share data) 
  $  33,541   $  46,497   $  84,197   $  33,401   $  56,842   
21,127   
35,714   

20,063   
64,134   

16,719   
16,682   

9,936   
36,561   

6,502   
27,039   

2011 

2010 

11,498   
456   
965   

17,313   
24   
2,767   

18,165   
18   
4,406   

18,885   
1,921   
8,508   

22,372   
(167 ) 
9,007   

641   

750   

693   

1,411   

1,437   

—   
13,560   
13,479   
(478 ) 
161   
29   

(80 ) 
20,774   
15,787   
(702 ) 
179   
32   

(1,296 ) 
21,986   
42,148   
(534 ) 
143   
(34 ) 

(1,924 ) 
28,801   
(12,119 ) 
(1,178 ) 
1,133   
96   

(764 ) 
31,885   
3,829   
(388 ) 
1,397   
280   

(4 ) 

(126 ) 

(169 ) 

(1,237 ) 

(455 ) 

13,187   
(1,974 ) 
11,213   

15,170   
(2,954 ) 
12,216   

41,554   
(11,141 ) 
30,413   

(13,305 ) 
704   
(12,601 ) 

4,667   
(5,067 ) 
(400 ) 

(3,563 ) 

(4,206 ) 

(10,455 ) 

4,094   

445   

7,650   $ 

8,010   $  19,958   $ 

(8,507 ) $ 

(845 ) 

0.19   $ 
0.19   $ 

0.19   $ 
0.19   $ 

0.47   $ 
0.46   $ 

(0.16 ) $ 
(0.16 ) $ 

(0.02 ) 
(0.02 ) 

  $ 

  $ 
  $ 

  40,254,192   42,426,703   42,580,945   53,064,968   54,608,919   
  40,637,876   42,450,606   42,975,007   53,064,968   54,608,919   

(1)          Excludes depreciation of land-use rights and amortization of licenses and permits of $418,867, 

$546,623 and 290,526 for 2009, 2010 and 2011, respectively.  

(2)          Includes stock-based compensation expense of $422,860, $459,901 and $206,301 in 2009, 2010 

and 2011, respectively.  

(3)          The presentation and disclosure for non-controlling interests have been changed retrospectively 

with the adoption of new authoritative guidance effective January 1, 2009. 

Balance sheet data 
Cash and cash equivalents 
Restricted cash 
Total assets 
Short-term loans 
Total current liabilities 
Long-term loans payable 
Net assets 

2008 

2009 

2010 

2011 

   $  32,894    $  74,953    $ 101,585    $ 104,287   
—   
64   
215,908   
145,477   
4,713   
17,698   
40,642   
51,013   
17,321   
—   
129,921   
70,658   

—   
214,358   
10,436   
45,758   
10,058   
126,440   

—   
83,203   
8,024   
21,279   
2,188   
49,714   

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
    
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
    
    
  
    
    
    
    
    
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Non-controlling interests 
Capital stock 
Total stockholders’ equity 

7,185   
43   

15,377   
13,808   
55   
43   
   $  49,714    $  70,658    $ 126,440    $ 129,921   

21,317   
54   

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Table of Contents 

B.             Capitalization and Indebtedness 

Not applicable. 

C.             Reasons for the Offer and Use of Proceeds 

Not applicable. 

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 clinical trials and 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 
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 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 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; and  

                  construct product lines in time of which meet the new China good manufacturing practice, or 

GMP, standards implemented on March 1, 2011.  

Although we were profitable from 2007 through 2009, we incurred losses in 2010 and 2011 and may 
not be able to return to profitability again in the future. 

Biopharmaceutical product development is a highly speculative undertaking and involves a 

substantial degree of risk. We have incurred substantial losses since our inception. Although we first 
became profitable for the year ended December 31, 2007 and were profitable from 2007 through 2009, 
we incurred losses in both 2010 and 2011.  We cannot assure you when we will be profitable again in 
the future. We incurred net losses attributable to stockholders of $8.5 million and $0.8 million in 2010 
and 2011, respectively. Our losses have principally stemmed from increased spending on research and 
development, increased selling expenses and deprecation related to new subsidiaries of Sinovac Dalian 
and Changping site of Sinovac Beijing. The increased spending on R&D is one of our core strategies to 
maintain our long term growth opportunity. R&D expenses incurred on non-government sponsored 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
projects are not capitalized in our financial statements. We expect our R&D spending will have a 
negative impact on our future net earnings. If we keep incurring losses in the future, such losses will 
have an adverse impact on our working capital, total assets, stockholders’ equity and cash flow. We 
cannot assure you that we will not incur additional losses in the future. 

Increased sales of our vaccines to PRC government agencies and our strategy to capture market 
share in China’s growing market for publicly funded inoculations expose us to risks relating to 
doing business with the government. 

We have increased sales of our vaccines to PRC government agencies. We are also pursuing a 

strategy to capture market share in China’s growing market for publicly-funded inoculations. While our 
increased sales to PRC government agencies afford us the opportunity to expand our sources of 
revenue and to further enhance our brand and reputation in China, we are exposed to various risks 
relating to doing business with the government. 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 

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Table of Contents 

changes to their contracts with us without our consent. 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 to 
you. In addition, many of 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 of Healive, Bilive or Anflu 
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. 39.3% of our sales in 2009, 37.6% 
of our sales in 2010 and 25.0% in 2011 were attributable to Healive. Revenue from sales of Healive 
was $33.0 million, $12.5 million and $14.2 million in 2009, 2010 and 2011, respectively. We began 
marketing and selling Bilive in 2005, but sales of this product were limited before 2007. After Healive 
was included into the EPI program, we adjusted our marketing strategy to sell Bilive primarily in the 
private market, which resulted in an increase in sales of Bilive. Revenue from sales of Bilive was $6.2 
million, $3.6 million and $12.7 million in 2009, 2010 and 2011, respectively. As Bilive is a combined 
hepatitis A and B vaccine, while Healive is a hepatitis A vaccine, an increase in Bilive sales may result 
in a corresponding decrease in Healive sales in the private market as customers may substitute Bilive 
for Healive if they are sold in the same market segment. We target Healive towards the EPI market and 
Bilive towards the private pay market, respectively, in order to prevent competition between the two 
products. As a result of this relative lack of product diversification, an investment in our company 
would be more risky than investments in companies that offer a wider variety of products or services. 

Maintaining and increasing revenue from the sale of flu vaccine is critical to our success. We began 

marketing and selling Anflu in 2006 and revenue from the sale of Anflu was $15.2 million in 2009, 
$7.6 million in 2010 and $8.1 million in 2011. In 2011, 14.3% of our revenue came from the sale of 
Anflu. However, the competition in the flu market is fierce as there are over 10 vaccine companies 
manufacturing seasonal flu vaccines in China and several multinational companies have announced 
that they plan on investing in manufacturing flu vaccines in China. 

We expect a small number of our key products, which will likely shift over time, to continue 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. 

We manufacture vaccines that are injected into 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 injure the vaccinees 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, expensive to defend and could result in 
the diversion of management’s attention from managing our core business or result in associated 
negative publicity. For example, in November 2008, a minor in Beijing died two days after she 
received a dose of Healive. An autopsy was conducted and the government investigation confirmed 
that the death was caused by myocarditis. However, in June 2009, the parents of the deceased initiated 
a lawsuit against us and three other defendants in Beijing’s Haidian District People’s Court claiming 
damages of RMB616,858. On November 19, 2010, Beijing’s Haidian District People’s Court absolved 
Sinovac of liability in the matter. 

  
  
  
  
  
  
  
  
Our business exposes us to potential product liability risks that are inherent in the testing, 
manufacturing and marketing of biopharmaceutical products. We currently do not carry product 
liability insurance for Healive, Bilive or Anflu. In addition, we have no clinical trial liability insurance 
for our clinical trials. In 2011, we generated $435,000 from exporting our products; however, we do 
not currently carry any product liability insurance for international market sales, although we are in the 
process to have one. Our current levels of insurance coverage may not be sufficient to satisfy liability 
resulting from product liability claims. A successful product liability claim or series of claims could 
have a material adverse impact on our business, financial condition and results of operations. 

Any pandemic threat may abate, or alternative vaccines or technologies may be adopted, before our 
vaccines achieve significant sales. 

We have devoted significant resources to researching and developing various vaccines to address the 

pandemic threat of infectious diseases, including SARS, avian flu and swine flu, and will continue to 
devote resources to the development of our vaccines to address any new needs. 

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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 believe 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 adopted other technologies or strategies to 
prevent or limit outbreaks before our pandemic vaccine achieves 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. 

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. 

During the preparation of our consolidated financial statements for the year ended December 31, 
2010, we identified a material weakness in our internal control over financial reporting. We remediated 
this material weakness during 2011 and have concluded that our internal control over financial 
reporting was effective for our fiscal year ended December 31, 2011. However, we cannot assure you 
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 fail to comply with our listing obligations, we risk being de-listed from the NASDAQ Global 
Select Market, which could have a material adverse effect on the trading market for our common 
shares, reduce our ability to raise funds and otherwise have significant negative consequences on 
the Company. 

Our common shares have been listed on the NASDAQ Global Market since November 2009 and we 
were added to the NASDAQ Global Select Market on January 3, 2011.  On January 18, 2012, we 
received a NASDAQ Staff Deficiency Letter indicating that we no longer complied with the 
requirement that the audit committee of a NASDAQ-listed company shall consist of at least three 
independent directors, due to the departure of Ms. Chup Hung Mok effective December 
2011.  NASDAQ provided us with a cure period in order to regain compliance of until the earlier of our 
next annual shareholders meeting or January 4, 2013; or if the next annual shareholders’ meeting is 
held before July 2, 2012, then we must evidence compliance no later than July 2, 2012. In March 2012, 
we appointed Mr. Meng Mei as a new director of our board and as the chairman of our compensation 
committee and a member of our audit committee and nominating and corporate governance committee. 
We received a letter from NASDAQ on March 30, 2012 indicating that we had regained compliance 
with NASDAQ requirement. We cannot assure you, however, that we will always be able to comply 
with the requirements of the NASDAQ Global Select Market in the future. If for any reasons we are 
unable to comply with the requirements of the NASDAQ Global Select Market in the future, our shares 
could be delisted from trading on that exchange. De-listing of our common shares could have a 
material adverse effect on the liquidity and price of our common shares and make it more difficult for 
us to raise additional capital on favorable terms, if at all. In addition, de-listing by the NASDAQ 
Global Select Market might negatively impact our reputation and, as a consequence, our business. 

  
  
  
  
  
  
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 further 
in the future. Our competitors include large pharmaceutical, biotechnology companies and academic 
research institutions, both domestic and international. Many of these competitors have greater 
resources than us. New competitors may also enter into the markets in which we currently 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;  

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                  have greater access to certain raw materials;  

                  have more efficient manufacturing processes and greater manufacturing capacity;  

                  have greater marketing capabilities;  

                  have greater pricing flexibility;  

                  have more extensive research and development and technical capabilities;  

                  have proprietary patent portfolios or other intellectual property rights that may present an 

obstacle to our conduct of 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 in hepatitis A vaccines, hepatitis A and B 
vaccines and influenza vaccines, please see ―Item 4. Information on the Company — B. Business 
overview —  Competition.‖ 

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

Our market share is estimated based on the batch release number published by the National 

Institutes for Food and Drug Control, or NIFDC, which represents the market share estimated based on 
published supply quantity, but not the actual sales number in the market. Although we supplied 31% of 
the total hepatitis A vaccine market in China, or 67% of the inactivated hepatitis A vaccine market in 
2007, we supplied 23%, 13.2% and 7% of the total hepatitis A vaccine market, or 52%, 35% and 32.4% 
of the inactivated hepatitis A vaccine market in 2009, 2010 and 2011, respectively.  Going forward, we 
may not be able to compete with other hepatitis A suppliers for either private pay market or 
government paid market, which could adversely affect our ability to increase our revenues from 
hepatitis A vaccine. 

We have been marketing and selling seasonal flu vaccines since 2006. Our market share was 11.3% in 
2009, 12% in 2010 and 8% in 2011. The flu vaccine market in China is highly competitive. 
Multinational companies are increasing investment in localized flu vaccine manufacturing plants. Our 
revenue growth could be adversely impacted if we are not able to maintain our market share in this 
highly competitive market. 

We may not be able to capture 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 capture market share in these markets, we may need to sell our vaccines a lower price, which 
could adversely affect our gross margin. 

Hepatitis A vaccines have been included in the Expanded Program of Immunization, or EPI, in 
China since 2007. The PRC Government purchase hepatitis A vaccines for each 18-month-old child, 
which has resulted in a decline in demand of hepatitis A vaccines in the private market for the cohort 
group. We cannot assure you that we will be able to maintain our sales volume in the private hepatitis 
A vaccine market. 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
We expect the EPI to increase the overall size of the hepatitis A vaccine market in China, as well as 

other vaccine markets in China. However, we may not be able to capture market share in these 
government-funded vaccine markets. For example, domestic suppliers of freeze-dried, live attenuated 
hepatitis A vaccine may be able to supply this market at a lower cost and with higher quantities of 
vaccine than we can. If we are unable to capture market share in these government-funded vaccine 
markets, our sales volume may not grow significantly. Moreover, if we do successfully capture market 
share in these government-funded vaccine markets, we may need to sell our vaccines at a lower price 
than we do in the private market. Any reduction in the average selling price of our vaccines could 
adversely affect our gross margin. 

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 the 
insufficient financial support, which constrains the purchase of inactivated hepatitis A vaccines in 
government-funded market. Most provincial and municipal governments prefer to purchase the 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. Our revenue growth could be adversely impacted if we are not able to 
successfully enter into the government-funded markets of these cities. 

We may not be able to expand the sales of Bilive, the combined hepatitis A and B vaccine, in China. 

We started to market Bilive in 2005. The sales of Bilive were very limited compared to other products 
sold by us from 2005 to 2008. Since 2009, our revenue derived from Bilive has grown rapidly, and the 
trend continued in 2011. We sold 946,000 doses, 

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684,000 doses and 1.8 million doses of Bilive in 2009, 2010, and 2011, respectively. Although there is 
currently no competition for Bilive in China, we cannot assure you that other organizations will not 
launch similar type of vaccines in the future. Also, as both hepatitis A and hepatitis B vaccines are 
included in the National Immunization Program, the coverage of which is expected to be expanded as 
required by the PRC government, we may not be able to further expand our sales of Bilive in the 
private pay market or we may not be able to achieve the similar level of growth in the future. 

If end users, such as hospitals, physicians and vaccinees, do not accept our products, we may be 
unable to generate significant revenue. 

Even if we have obtained the regulatory approval for commercialization of our vaccines, they still may 
not gain market acceptance among centers for disease control, or CDCs, hospitals, physicians, 
vaccinees and the medical community, which would limit our ability to generate revenue and would 
adversely affect our results of operations. CDCs, 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, hospitals and physicians may elect not 
to recommend these products for a variety of reasons, including the reimbursement policies of 
government and third-party payers. There are other vaccines and treatment options for the conditions 
that many of our products and product candidates target, such as hepatitis A and B and influenza. In 
order to successfully launch a product, we must educate physicians and vaccinees about the relative 
benefits of our products. If our products are not perceived as easy and convenient to use, are perceived 
to present a greater risk of side effects or are not perceived to be as effective as other available 
treatments, CDCs, hospitals, physicians and vaccinees 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. 

We may not achieve the expected return on our investment in the development of animal vaccine 
products. 

We are new to the animal vaccine market in China. In 2011, we developed and launched our first 
animal vaccine product, RabEnd, an animal rabies vaccine. China’s animal vaccine market differs 
significantly from the human vaccine market with regard to development stage, distribution channel 
and governing authorities. We may not achieve the expected returns on our investment in developing 
animal vaccine products. We established a new sales team to market our animal vaccine products to 
animal hospitals and CDCs. We also participated in the government tendering process. We cannot 
assure you, however, that we will succeed in our efforts to penetrate the animal vaccine market or that 
our animal vaccine products will be well received by our target customers. Failure of our animal 
vaccine products to gain market acceptance will negatively affect our business, financial condition and 
results of operations. 

Our growth may be adversely affected if market demand for our vaccine products 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, as well as damage 
our reputation and brand. 

Our growth may be adversely affected if market demands for our vaccine products do not meet our 

expectations. The production of vaccine products is a lengthy and complex process. As a result, our 
ability to match our production to market demand is imprecise and may result in a failure to meet 
market demand, which could materially and adversely affect our financial conditions and results of 
operations as well as damage our reputation and corporate brand. For example, many vaccinees 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 vaccinees and identify clinical investigators for our clinical 
trials, our development programs could be delayed or terminated. 

The rate of completion of our clinical trials, and those of our collaborators, is significantly 

dependent upon the rate of enrollment of vaccines and clinical investigators. Vaccinees enrollment is a 
function of many factors, including: 

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

                  vaccine 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 vaccine population;  

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                  availability of competing therapies;  

                  availability of clinical trial sites; and  

                  proximity of and access by vaccines to clinical sites.  

We may have difficulty obtaining sufficient vaccinee enrollment or clinician participation to conduct 
our 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 or field trials could adversely affect our share price. 

In January 2012, we initiated phase III clinical trials for enterovirus 71 vaccine against hand foot and 
mouth disease after positive results were achieved in phase I and II clinical trials conducted in 2011. In 
addition, we filed applications to conduct clinical trials for pneumococcal conjugate vaccine, 
pneumococcal polysaccharides vaccine and rubella vaccine in early 2011. Our product pipeline also 
includes vaccines for human rabies, varicella and rotavirus. Setbacks in any phase of the clinical trials 
or field trials of our product candidates could have a material adverse effect on our business and our 
future prospects and financial results and would 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 dramatically 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 currently 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 our clinical trials and those third parties may not perform 
satisfactorily, including failing to meet established deadlines for the completion of such trials. 

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 vaccinees and 
conduct our 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 successfully 
carry out their contractual duties, including meeting expected deadlines, our efforts to obtain regulatory 
approvals for and commercialize our vaccine candidates may be delayed or prevented. 

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 materials 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 the third-party suppliers were to cease production or otherwise fail to supply us with 
quality raw materials, and 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 long-term supply sources for some of the raw materials we use, our 
business could be harmed. For example, we do not have a long-term supply agreement for the hepatitis 
B vaccine we use for Bilive production. We source the hepatitis B vaccine entirely from Beijing 

  
  
  
  
  
  
  
  
  
  
  
  
Temple of Heaven Biological Products Co., Ltd., or Beijing Temple of Heaven. In an agreement dated 
October 15, 2002, we agreed to purchase all hepatitis B vaccine to be used in our Bilive production 
exclusively from Beijing Temple of Heaven for 10 years and to enter into a separate supply agreement 
in the future to specify the pricing, quantity, delivery and payment terms of the hepatitis B vaccine 
supply relationship. The agreement will expire in October 2012. We cannot assure you that Beijing 
Temple of Heaven will continue to furnish us with hepatitis B vaccine for the following years. 

From time to time, concerns are raised with respect to potential contamination of biological 
materials that are supplied to us. These concerns can further 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, there is a possibility that material shortages could impact product development and 
production. 

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

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. You should expect this seasonality in our business 
to contribute to significant quarterly fluctuations in our operating results. 

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 standards, each product can only be produced in one dedicated 

production facility. We manufacture all our human vaccine products and store them in the same facility 
located in Beijing and our only animal vaccine product is manufactured and stored in one facility in 
Tangshan. We also conduct some of our primary research and development activities out of the same 
facilities. Although we have purchased facilities in Changping District, Beijing and also established a 
joint venture in Dalian, Liaoning province, the production lines that will be used for manufacturing 
pipeline products in the future are still under construction. We do not maintain back-up facilities for the 
current available products, so we are dependent on our existing facility for the continued operation of 
our business. A natural disaster or other unanticipated catastrophic events, including power 
interruptions, water shortage, storms, fires, earthquakes, terrorist attacks and wars, could significantly 
impair our ability to manufacture our products and operate our business, as well as delay our research 
and development activities. Our facility and certain equipment located in this facility would be difficult 
to replace and could require substantial replacement lead-time. Catastrophic events may also destroy 
any inventory located in our facility. We currently do not carry business interruption insurance to 
compensate for losses that may occur as a result of these catastrophic events. Therefore, the occurrence 
of such an event could materially and adversely affect our business. In 2010, we purchased 
manufacturing facilities in Changping District, Beijing and Dalian, Liaoning province. The projects 
will require significant build-out before they will be operational. We may experience difficulties in 
expanding our manufacturing capabilities to the new facilities. Moreover, we may not realize the 
anticipated benefits of our new facilities. Any of these factors could reduce or restrict our sales and 
harm our reputation and have a material adverse effect on our business, financial condition, results of 
operations and prospects. 

We will need additional capital to upgrade the production plant for our existing products or expand 
the facility, 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. 

We closed a public offering of our common shares on February 2, 2010, and received net proceeds 
of approximately $61.8 million, after deducting underwriting discounts and commissions and offering 
expenses payable by us. The proceeds will be used in research and development, facility expansion and 
international collaboration and potential merger and acquisition. 

In the long run, we will need to raise additional funds from the capital markets to finance equipment 

expenditures, to acquire intellectual property, to expand the production facility for our pipeline 
products, such as pneumococcal polysaccharides vaccine, pneumococcal conjugate vaccine, to continue 
the development and commercialization of our product candidates and for other corporate purposes. As 
of December 31, 2011, we had approximately $104.3 million in cash and cash equivalents. Although 
we believe that we have adequate near-term cash resources, we will need to undertake significant 
future financings in order to: 

                  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 other product candidates or technologies;  

                  protect our intellectual property; and  

                  finance general and 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 
offering of our common shares. We may raise additional funds in future because our current operating 
and capital resources may be insufficient to meet future requirements. 

If we continue to raise additional funds by issuing equity securities, it will result in further dilution 
to our existing shareholders because the shares may be sold at a time 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 

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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 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 also received research grants from the PRC government to 
finance the development of our vaccine products. We may not receive additional grants in the future. 

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 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. 

The interests of the existing minority shareholder in Sinovac Biotech Co., Ltd., or Sinovac Beijing, 
and/or the interests of the existing minority shareholder of Sinovac Dalian, may diverge from our 
own and this may adversely affect our ability to manage Sinovac Beijing and/or Sinovac Dalian. 

Sinovac Beijing, our principal operating subsidiary, is a Sino-foreign equity joint venture in which 

we own a 73.09% interest and SinoBioway Group Co., Ltd, or SinoBioway, an affiliate of Peking 
University, owns a 26.91% interest. SinoBioway’s interests may not be aligned with our interests at all 
times. If SinoBioway’s and our interests diverge, SinoBioway may exercise its right under PRC laws to 
protect its own interest, which may be adverse to us. For example, under China’s joint venture 
regulations, unanimous approval of members of a joint venture’s (such as Sinovac Beijing) board of 
directors who are present at a board meeting is required for any amendment to the joint venture’s 
articles of association, the termination or dissolution of the joint venture company, an increase or 
decrease in the registered capital of the joint venture company or a merger or de-merger of the joint 
venture. SinoBioway appoints the legal representative of Sinovac Beijing, who also serves as the 
chairman of the five-director board of Sinovac Beijing. Accordingly, SinoBioway has the ability to 
take actions that bind Sinovac Beijing or to block any action that requires unanimous board approval. 
Further, if we wish to transfer our equity interest in Sinovac Beijing, in whole or in part, to a third-
party, SinoBioway has a right of first refusal to purchase our interest under China’s joint venture 
regulations. 

In addition to its statutory rights as a minority shareholder, SinoBioway has additional rights under 

the joint venture contract and under the 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. 

To date, SinoBioway has been cooperative with us in handling matters with respect to the business 

of Sinovac Beijing. We cannot assure you, however, that SinoBioway will continue to act in a 
cooperative manner in the future. 

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 vaccines, such as mumps, varicella and rabies for human use. 
Pursuant to the joint venture agreement, we have made the initial cash contribution of RMB60 million 
in exchange for a 30% equity interest in Sinovac Dalian, and Dalian Jin Gang Group has made an asset 
contribution of RMB140 million including the manufacturing facilities, production lines and land use 

  
  
  
  
  
  
  
  
rights, in exchange for the remaining 70% interest in Sinovac Dalian. We have also entered into an 
agreement with Dalian Jin Gang Group, under which we have agreed, subject to the approval of the 
PRC government to increase our shareholding in Sinovac Dalian to 55% through purchasing 25% 
equity interest in Sinovac Dalian from Dalian Jin Gang Group for a consideration of RMB50 million 
on or before December 31, 2010. The transaction was completed on December 31, 2010, and we 
currently own a 55% equity interest in Sinovac Dalian while Dalian Jin Gang Group currently holds a 
45% equity interest in the entity. 

To date, Dalian Jin Gang Group has been cooperative with us in handling matters with respect to the 
business of Sinovac Dalian. We cannot assure you, however, that Dalian Jin Gang Group will continue 
to act in a cooperative manner in the future. 

Some of the predecessor shareholders of Sinovac Beijing and Tangshan Yian Biological 
Engineering Co., Ltd., or Tangshan Yian, were enterprises owning state-owned assets, or 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 and Tangshan Yian. 

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Sinovac Beijing is currently owned 73.09% by us and 26.91% by SinoBioway. Tangshan Yian is 
wholly owned by us. Some of the predecessor shareholders of Sinovac Beijing and Tangshan Yian, 
including Shenzhen Kexing Biological Engineering Ltd., or Shenzhen Kexing, SinoBioway, Tangshan 
Medicine Biotech Co., Ltd., Tangshan Yikang Biotech Co., Ltd. and Tangshan Yian itself (as Sinovac 
Beijing’s former shareholder), 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. Our 
acquisitions of intellectual property rights and some equity interests were subject to these requirements. 
The technologies related to 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. 

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: 

                  obtain the appraisal of the hepatitis A and B vaccine technology that it transferred for no 

consideration to Beijing Keding Investment Co., Ltd., or 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 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 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 and 100% equity 
interest in Tangshan Yian, both companies had undergone multiple changes in their shareholders and 
these shareholders’ shareholdings. Some of the EOSA shareholders of Sinovac Beijing and Tangshan 
Yian, including SinoBioway and Tangshan Medicine Biotech Co., Ltd., have sold, transferred or 
assigned their respective equity interests in Sinovac Beijing and Tangshan Yian 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 
interests in Sinovac Beijing and Tangshan Yian. 

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. We cannot guarantee that government authorities will not take 
such legal actions or that such legal actions, if commenced, will not 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 and Tangshan Yian constitute all of our operations, our loss 
of these technologies or equity interests in Sinovac Beijing and/or Tangshan Yian would materially and 
adversely affect our business operations and financial condition. 

We became a public company through our acquisition of a public shell company, where we were the 
accounting acquirer and assumed all known and unknown potential liabilities of our predecessor 
entity. 

In September 2003, we engaged in a share exchange with Net-Force Systems Inc. This transaction 
was accounted for as a reverse merger in which Sinovac Biotech Co., Ltd. was deemed the accounting 
acquirer and Net-Force, which was originally incorporated in 1999, was the legal acquirer. Although 
we disposed of all the assets and liabilities of Net-Force to a company controlled by its then president 
and CEO, we cannot guarantee that we will not be liable for any liabilities related to the conduct by 
Net-Force of its business prior to its acquisition by us. 

  
  
  
  
  
  
  
  
  
  
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 are a small company with 614 full-time employees as of December 31, 2011, 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 Dr. Weidong Yin, our President and Chief Executive Officer, the loss 
could significantly impede the achievement of our research and development objectives and delay our 
product development programs and the approval and commercialization of our product candidates. We 
do not currently 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 our executive officers in the future. In addition, recruiting 
and retaining additional qualified scientific, technical and managerial personnel and research partners 
will be critical to 

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our success. Competition among biopharmaceutical and biotechnology companies for qualified 
employees in China is intense and turnover rates are high. There is currently 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. 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 a period of rapid and substantial growth that has placed and, if such growth 
continues, will continue to 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 further promote our brand and generate demand for our products so 
as to attract distributors in international markets, we expect to spend significantly more on marketing 
and promotion than we do in our existing domestic markets. We may be unable to attract a sufficient 
number of distributors, and our selected distributors may not be suitable for selling our products. 
Furthermore, 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. 

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

                  political instability;  

                  economic instability and recessions;  

                  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; and  

                  inability to effectively enforce contractual or legal rights. 

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 could require that our management develop expertise in new areas, 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 also 
experience difficulties integrating acquisitions into our existing business and operations. Future 
acquisitions may also expose us to potential risks, including risks associated with: 

                  the integration of new operations, services and personnel;  

                  unforeseen or hidden liabilities;  

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                  the diversion of resources from our existing businesses and technologies;  

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

                  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. 

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, or OFAC, 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, or 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. 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 comply with all applicable U.S. Economic 
Sanctions Laws. Moreover, if a U.S. distributor conducts activities or transacts business with a country, 
government, entity or individual subject to U.S. economic sanctions, such actions may violate 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 and adverse effect on our business, 
financial condition, results of operations and prospects. 

Failure to comply with the U.S. Foreign Corrupt Practices Act 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 law in connection with 
the marketing or sale of our products, including the U.S. Foreign Corrupt Practices Act, or the FCPA, 
and applicable anti-corruption law in China and other jurisdictions in which our products are sold or 
registered for sale. The 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 the 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 the countries in which we seek to do business. While we have implemented measures to 
ensure compliance with the FCPA and other applicable anti-corruption laws by all individuals involved 
with our company, it is possible that our 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. 

In addition, there may be corrupt practices in the healthcare industry in China and other countries in 

which we conduct business. For example, in order to secure agreements with CDCs or hospitals in 
China, our competitors may engage in corrupt practices in order to influence decision-makers in 
violation of the anti-corruption laws of China and the 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. 

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

Based on the market price of our common shares, the value of our assets and 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, 2011. A non-U.S. 
corporation will be a PFIC for any taxable year if either (1) at least 75% of its gross income for such 
year is passive income or (2) at least 50% of the value of its assets (based on an average of the 
quarterly values of the assets) 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 year as to whether we were a PFIC for that year. 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. Because the value of our assets for purposes of the PFIC test will generally be determined by 
reference to the market price of our common shares, fluctuations in the market price of our common 
shares may cause us to become a PFIC for any year. 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, certain adverse U.S. federal income tax consequences 
could apply to such U.S. Holder. See ―Item 10. Additional Information — E. Taxation — United States 
Federal Income Taxation — Passive Foreign Investment Company.‖ 

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Risks Related to Government Regulation 

We may not be able to comply with applicable GMP guidelines 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, premise and equipment, raw material and products, qualification 
and validation, documents management, production management, quality control and assurance and 
products 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 have been required to comply with the new GMP standards implemented by 
the SFDA since March 1, 2011. The new GMP standards are similar to the GMP standards 
implemented by the World Health Organization, or the WHO. All the vaccine manufacturers are 
required to meet the new GMP standards and obtain certifications for their manufacturing facilities by 
December 31, 2013. Any manufacturer who fails to meet the deadline will be forced to suspend 
production. We cannot assure you that we will be able to meet the new GMP standards within the 
required timeframe. 

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: 

                  fines;  

                  product recalls or seizure;  

                  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 approval. Many factors affect our ability to 
obtain such approvals. 

Pre-clinical and clinical trials of our products, and the manufacturing and marketing of our 

technologies, 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 the SFDA 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, respectively, to develop and obtain regulatory approval to commercialize Bilive and Anflu. 

There can be no assurance that all of the clinical trials pertaining to our vaccines in development 
will be completed within the time frames currently anticipated by us. We could encounter difficulties in 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
enrolling vaccinees for clinical trials or encounter setbacks during the conduct of 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 approval, and failure to observe 
regulatory requirements or inadequate manufacturing processes are examples of other problems that 
could prevent approval. In addition, we may encounter delays or rejections in the event of additional 
regulation from future legislation, administrative action or changes in the SFDA policy or if unforeseen 
health risks become an issue with the participants of clinical trials. Clinical trials may also 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 only five years and we need to apply for renewal six months prior to their 
expirations. The approving process for 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 the SFDA or foreign approvals of our products or products that we distribute for 
others could result in substantial additional costs and adversely affect our ability to compete with other 
companies. Even if regulatory approval is ultimately granted, there can be no assurance that we can 
maintain the approval or that the approval will not be withdrawn. Any approval received may also 
restrict the intended use and marketing of the product we want to commercialize. 

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Outside the PRC, our ability to market any of our potential products is contingent upon receiving 
marketing authorizations from the appropriate foreign regulatory authorities. These foreign regulatory 
approval processes include all of the risks associated with the SFDA approval process described above 
and may include additional risks. 

Because the medical conditions 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, resumed price controls and additional regulations. 

In response to a pandemic or the perceived risk of a pandemic, governments in China 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 could subject our manufacturing locations to seizure by the PRC 
government. The PRC government may also grant compulsory licenses to allow competitors to 
manufacture products that are protected by our patents, use our technology developed using funds 
received from government agencies or resume its price control over vaccines although such control has 
recently been lifted in China. 

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 completely 
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 any liability 
could exceed our resources or any 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 PRC Environmental Protection Law, as well 
as waste-disposal standards set by the relevant governmental agencies. It is likely that China will adopt 
stricter pollution controls as the country is experiencing increasingly serious environmental pollution. 
Although we passed an environmental examination of our facilities conducted in 2004 by the Beijing 
Environment Protection Bureau on our hepatitis A vaccine production line and passed the same 
examination on our seasonal flu vaccine production line and filling and packaging line in 2005 and 
2008, respectively, we cannot assure you that we will continue to pass similar environmental 
examinations on any future production facilities that we may construct. In addition, 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. We are now producing Bilive vaccine using our production 
facility for hepatitis A vaccine and producing Panflu and Panflu.1 vaccines using our production 
facility for seasonal flu or Anflu vaccine, and have also upgraded the production capacity for our 
production facility for influenza vaccines, but we have not filed new environmental impact assessment 
reports. We are also using our filling and packaging line that was originally established to fill and 
package Panflu vaccine to package all our products. This is because we believe that the technologies 
and impacts on the environment involved in the production, filling and packaging of the additional 
vaccines are very similar to those involved in the production, filling and packaging of the vaccines that 
the lines were originally set up for, as a result of which no material changes have occurred that would 
require the filing of new environmental impact assessment reports. However, there is no assurance that 
the relevant environment protection authorities will share the same view with us. If we fail to comply 
with applicable environmental laws and regulations or with the environmental conditions attached to 
our operating licenses, our operating licenses could be revoked and we could be subject to civil, 
criminal and administrative penalties. We may also have to incur significant costs to comply with 
future environmental laws and regulations. Moreover, we do not currently have a pollution and 
remediation insurance policy to mitigate against any risk related to environmental pollution or violation 
of environmental law. 

  
  
  
  
  
We have already obtained the approval of the environmental impact assessment report from Beijing 

Municipal Environmental Protection Bureau for the construction plan of our facilities in Changping 
District, Beijing. If we change the construction plan by adding any new facilities, we will need to 
obtain another approval of the environmental impact assessment report for the new facilities. If we fail 
to obtain such approval, we cannot commence our construction of the new facilities. 

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 right. 

Sinovac Dalian was granted land use rights to two parcels of land, with an aggregate area of 

95,685.6 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  

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issuance date of the construction land approval certificate. Land users can extend the deadline for 
commencing the construction work for one year. All of our facilities of Sinovac Dalian are located at 
one of the two parcels of the land with an aggregated area of 55,606 square meters (approximately 
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 (approximately 431,418 square 
feet), which Sinovac Dalian was granted right to use and we expect construction work on the land to 
commence by the end of 2012. It is possible that the PRC government may treat the land as idle land, 
in which case we may have 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 the PRC government. Although our 
financial condition may be adversely affected if we are required to pay idle land fees on penalty or 
forfeit the land, we do not believe there will be a material impact over the proposed production of 
mumps vaccine products and other pipeline products by Sinovac Dalian. 

Risks Related to Our Intellectual Property 

Our hepatitis and influenza vaccine technology is not patented. 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 PRC patent applications and relying 
on trade secret and pharmaceutical regulatory protection. 

We have no patent protection for our hepatitis or influenza vaccines. We have four issued patents 
and a number of pending patent applications relating to our pipeline products in the PRC. 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 may be challenged, 
invalidated or circumvented in the future. 

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, it is possible that third parties could independently develop 
information and techniques substantially similar to ours or otherwise gain access to our trade secrets. 

We cannot assure you that our current or potential competitors, many of whom have substantial 
resources and have made substantial investments in competing technologies, do not have and will not 
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 countries. Policing unauthorized use of proprietary technology is difficult and 
expensive, and we might need to resort to litigation to enforce or defend 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. 

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

Our commercial success also 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: 

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                  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 competitor’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.  

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 manage effectively 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 on our part. While we 
anticipate expending substantial funds and management effort, we cannot assure you 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. Furthermore, 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 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 may also 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;  

                  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 very 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. These 
third parties also 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 our research and 

development efforts. Almost all of our pre-clinical and research programs are heavily reliant upon 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  

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new vaccines 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, it is possible that 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. 

We currently use ―科兴‖ (Kexing) as part of Sinovac Beijing’s Chinese trade name in the PRC. We 

also intend to use ―科兴‖ (Kexing) as part of the Chinese trade name of Sinovac Dalian in the PRC. 
Shenzhen Kexing currently owns the ―科兴‖ trademark registered in China for Class 5 
(Pharmaceuticals) under the International Classification of Goods and Services. To protect our interest 
in using ―科兴‖ in our trade name, 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. The ―科兴‖ trademark 
owned by Shenzhen Kexing has not been identified as ―Well-known Trademark‖ by the relevant PRC 
authorities since we first started using ―科兴‖ in the trade name of Sinovac Beijing in 2001. If the ―科
兴‖ trademark owned by Shenzhen Kexing is ever officially identified as a ―Well-Known Trademark‖, 
however, we may be subject to trademark infringement claim for the use of ―科兴‖ in our trade name. 
Although the trademark application and the trade name approval systems are administered separately in 
China, it is possible that we may lose our ability to use the ―科兴‖ trademark in our trade name 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. 

All of our business operations are conducted in China, and over 99% of our sales are currently made 

in China. 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  

                  lack of sufficient transparency in the regulatory process.  

While the Chinese economy has experienced significant growth in the past 20 years, growth has 
been uneven, both geographically and among various sectors of the economy. The Chinese government 
has implemented various 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 Chinese 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, a substantial 
portion of the productive assets in China is still owned by the Chinese government. The continued 
control of these assets and other aspects of the national economy by the Chinese government could 
materially and adversely affect our business. The Chinese government also exercises significant control 
over Chinese economic growth through the allocation of resources, controlling payment of foreign 
currency-denominated obligations, setting monetary policy and providing preferential treatment to 
particular industries or companies. Efforts by the Chinese 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. 

Moreover, the political relationship among foreign countries and China is subject to sudden 

fluctuation and periodic tension. 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. 

Any adverse change in the economic conditions or government policies in China 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. 

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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 Chinese 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. Therefore, 
prior enforcement activity, or lack of enforcement activity, is not necessarily predictive of future 
actions. Any enforcement actions against us could have a material and adverse effect on us and the 
market price of our shares of common stock. In addition, any litigation or governmental investigation 
or enforcement proceedings in China may be protracted and may result in substantial cost 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 subsidiary, Sinovac Beijing, our wholly owned subsidiaries, Tangshan Yian and 
Sinovac R&D (formerly known as Sinovac Biological), and our 55%-owned joint venture, Sinovac 
Dalian, 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. For instance, Tangshan Yian is 
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 Tangshan Yian. 
Tangshan Yian is also required to reserve a portion of its after-tax profits to its employee welfare and 
bonus fund, the amount of which is subject to its board of directors. Sinovac Beijing is required to set 
aside, at the discretion of its board of directors, a portion of its after-tax profits to its reserve fund, 
enterprise development fund and employee welfare and bonus funds. These funds are not distributable 
in cash dividends. In addition, if Sinovac Beijing, Tangshan Yian or Sinovac R&D (formerly known as 
Sinovac Biological) incurs debt on its own behalf 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 99% 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 subsidiaries. 
Under China’s existing foreign exchange regulations, Sinovac Beijing,  Tangshan,Sinovac R&D, 
Tangshan Yian, and Sinovac Dalian are able to pay dividends in foreign currencies without prior 
approval from the State Administration of Foreign Exchange, or the SAFE, by complying with certain 
procedural requirements. However, we cannot assure you that the PRC government will not 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 the 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 the SAFE. Further, such loans 

  
  
  
  
  
  
  
must be registered with the SAFE. If we finance our PRC subsidiaries by means of additional capital 
contributions, 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. On July 21, 2005, the PRC government changed its decade-old policy of pegging the value of 
the renminbi to the U.S. dollar. Under the new policy, the renminbi was permitted to fluctuate within a 
narrow and managed band against a basket of certain foreign currencies. This change in policy caused 
the renminbi to appreciate approximately more than 21.5% against the U.S. dollar over the following 
three years. Since reaching a high against the U.S. dollar in July 2008, however, the renminbi has 
traded within a narrow band against the U.S. dollar until June 2010, when the renminbi began to further 
appreciate against the U.S. dollar as a result of the PRC government’s announcement on June 19, 2010 
that it would further increase the flexibility of the renminbi exchange rate. These changes in currency 
policies resulted in an appreciation of the renminbi against the U.S. dollar by 31.5% between July 21, 
2005 and December 31, 2011. 

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It is difficult to predict how long the current situation may last and when and how it may change again. 
There remains significant international pressure on the PRC government to adopt an even more flexible 
currency policy, which could result in a further and more significant appreciation of the renminbi 
against foreign currencies. As a portion of our costs and expenses is 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, or the EIT Law, and its implementation rules, both 

effective from January 1, 2008, both domestic companies and the foreign invested enterprises, or the 
FIEs, are subject to a unified income tax rate of 25%. Tax exemption or reduction with fixed terms 
enjoyed by enterprises including us will continue until the expiry of the prescribed period. 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 according to the new criteria and obtained the 
corresponding certificate with a three-year valid period on September 14, 2011. 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, or EIT, rate of 15% from 2011 to 2013. Tangshan Yian is 
subject to a 25% income tax rate but is subject to an income tax preferential exemption from income 
taxes for two years and a 50% reduction in income taxes for the three years from 2008 to 2013. 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. 

The EIT Law could affect tax exemptions on dividends received by us and increase our enterprise 
income tax rate. 

We are incorporated under the laws of Antigua and Barbuda. As a foreign legal person, dividends 

derived from our subsidiaries in the PRC were exempt from income tax under PRC law before 
January 1, 2008. Under the EIT Law and its implementation rules, if we are deemed as a non-PRC tax 
resident enterprise without an office or premises in the PRC, withholding tax at the rate of 10% will be 
applicable to dividends received by us from Tangshan Yian, unless the tax is entitled to reduction or 
elimination in accordance with any future PRC laws or regulations or an applicable tax treaty between 
the PRC and Antigua and Barbuda. As of the date of this annual report, Antigua and Barbuda has not 
entered into any such tax treaties with the PRC. According to the Arrangement between Mainland of 
China and Hong Kong Special Administrative Region Arrangement on the Avoidance of Double 
Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income agreed between China 
and Hong Kong in August 2006, 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 
Hong Kong investor owns directly at least 25% of the shares of the foreign-invested enterprise for a 
period of greater than 12 months), or otherwise 10%. In 2009, Sinovac Biotech (Hong Kong) Ltd., or 
Sinovac Hong Kong, paid 10% withholding tax rate on the dividend received from Sinovac Beijing due 
to the holding period of the subsidiary less than 12 months from the date of the transfer the ownership 
of Sinovac Beijing to Sinovac Hong Kong. As of the date of this annual report, Sinovac Hong Kong 
has not received approval from Chinese tax authorities to apply 5% withholding tax rate on dividend 
received from Sinovac Beijing for 2010 and 2011. 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 because it is unclear whether Sinovac Hong Kong is considered as the beneficial 

  
  
  
  
  
owner of the dividends in substance. The PRC tax authorities has the 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 stockholders. 

In addition, the EIT Law provides that, if an enterprise incorporated outside the PRC has its ―de 
facto management organization‖ located within the PRC, such enterprise may be recognized as a PRC 
tax resident enterprise and thus may be subject to enterprise income tax at the rate of 25% on its 
worldwide income. Under the implementation rules of the EIT Law, ―de facto management 
organization‖ means the organization which is essentially in charge of overall management and control 
with respect to the operation, personnel, books and accounts, and assets of the enterprise in question. 
As substantially all members of our management are located in the PRC, we may be deemed a PRC tax 
resident enterprise and therefore be subject to an enterprise income tax rate of 25% on our worldwide 
income, although the dividends that we receive from our PRC subsidiaries would be exempt from PRC 
withholding tax if we are recognized as a PRC tax resident. 

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 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. 

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Recent PRC regulations relating to the establishment of offshore special purpose companies by PRC 
residents may subject our PRC resident shareholders to personal liability and limit our ability to 
acquire PRC companies or to inject capital into our PRC subsidiary, limit our PRC subsidiary’s 
ability to distribute profits to us, or otherwise adversely affect our financial position. 

SAFE issued a public notice in October 2005, or the SAFE Notice 75, requiring PRC residents to 
register with the local SAFE branch before establishing or controlling any company outside of China, 
or an offshore special purpose company, for the purposes of overseas capital raising with assets or 
equities of PRC companies. In addition, the PRC resident who is the shareholder of an offshore special 
purpose company is required to amend its SAFE registration with the local SAFE branch, with respect 
to that offshore special purpose company, in the event of any increase or decrease of capital, transfer of 
shares, merger, division, equity investment or creation of any security interest over the assets located in 
China or other material changes in share capital. If any PRC shareholder fails to make the required 
SAFE registration and amendment, the PRC subsidiaries of that offshore special purpose company may 
be prohibited from distributing their profits and the proceeds from any reduction in capital, share 
transfer or liquidation, to the offshore special purpose company. Moreover, failure to comply with the 
SAFE registration and amendment requirements described above could result in liability to our PRC 
beneficial owners or our PRC subsidiaries under PRC laws for evasion of applicable foreign exchange 
restrictions. 

SAFE Notice 75 applies retroactively to PRC residents who have established or controlled an 
offshore special purpose company that made onshore investments in the PRC prior to the issuance of 
the SAFE Notice 75. In May 2007, SAFE issued relevant guidance to its local branches with respect to 
the operational procedures for SAFE registration under SAFE Notice No. 75. This guidance 
standardized more specific and stringent supervision on registrations relating to SAFE Notice No. 75. 
Mr. Weidong Yin has made the required SAFE registration with respect to his investments in our 
company and Mr. Heping Wang has made the SAFE registration only in Beijing in 2007 but not with 
respect to his indirect investment in Tangshan Yian. The failure of our beneficial owners who are PRC 
residents to make their SAFE registrations or timely amend their SAFE registrations pursuant to the 
SAFE Notice 75 or the failure of future beneficial owners of our company who are PRC residents to 
comply with the registration procedures set forth in the SAFE Notice 75 may subject such beneficial 
owners or our PRC subsidiaries to fines and legal sanctions and may also result in a restriction on our 
PRC subsidiaries’ ability to distribute profits to us or otherwise adversely affect our business. 

As it is uncertain how the SAFE Notice 75 will be interpreted or implemented, we cannot predict 
how and to what extent it will affect our business operations or future strategy. For example, we may 
be subject to a more stringent review and approval process with respect to our foreign exchange 
activities, such as remittance of dividends, re-investments of profits and foreign currency-denominated 
borrowings, which may adversely affect our results of operations and financial condition. In addition, if 
we decide to acquire a PRC company with equity interests or assets, we or the owners of such company, 
as the case may be, may not be able to complete the necessary approvals, filings and registrations for 
the acquisition. This may restrict our ability to implement our acquisition strategy and adversely affect 
our business and prospects. 

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.‖ 
―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 amount of a PRC foreign-investment company’s 
registered capital plus all external borrowings by such company. The amounts of a PRC foreign-
investment company’s registered capital and total investment are set forth in the company’s 
constitutional documents and approved by the competent government authority in advance and, in the 
case of Sinovac Beijing and Sinovac Dalian, must be approved by their minority shareholders, 
SinoBioway or Dalian Jin Gang Group, respectively, as well. 

  
  
  
  
  
  
  
Loans by us or Sinovac Hong Kong to Sinovac Beijing, Sinovac R&D (formerly known as Sinovac 
Biological), Tangshan Yian or Sinovac Dalian cannot exceed the difference between such company’s 
registered capital and total investment, unless the company has obtained the approval of the approval 
authority and, in the case of Sinovac Beijing or Sinovac Dalian, the approval of SinoBioway or Dalian 
Jin Gang Group, respectively, also to increase the amount of total investment. Further, such loans must 
be registered with the SAFE or its local counterpart. 

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, by SinoBioway or Dalian Jin Gang Group, respectively, also. 
We cannot assure you that we will be able to obtain these government registrations or approvals, or the 
approval of SinoBioway or Dalian Jin Gang Group, on a timely basis, if at all, with respect to future 
loans or additional capital contributions by us to our subsidiaries or affiliates. If we fail to receive 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 
our business. 

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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 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. 

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 common law of Antigua and Barbuda is derived in part 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 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 requirements of 

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. 

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 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 management, 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. 39, Shangdi Xi Road, Haidian District, Beijing 100085, PRC. Our telephone number at this 
address is +86-10-8289-0088. Our registered address is located at 36 Long Street, in the City of Saint 

  
  
  
  
  
  
  
  
  
John in Antigua and Barbuda. Our agent for service of process in the United States is Law Debenture 
Corporate Services Inc., located at 400 Madison Avenue, 4th Floor, New York. 

We are a holding company and conduct our business in China through our 73.09% majority-owned 
subsidiary, Sinovac Beijing, our wholly owned subsidiaries, Tangshan Yian, Sinovac R&D (formerly 
known as Sinovac Biological) and Sinovac Hong Kong, and our 55%-owned joint venture Sinovac 
Dalian. Sinovac Beijing was incorporated on April 28, 2001, Tangshan Yian was incorporated on 
February 9, 1993, Sinovac Hong Kong was incorporated on October 21, 2008, Sinovac R&D (formerly 
known as Sinovac Biological) was incorporated on May 7, 2009, and Sinovac Dalian was established 
on January 19, 2010. 

We were incorporated in Antigua and Barbuda on March 1, 1999. 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. We were quoted on the OTC Bulletin Board on February 21, 2003. 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  

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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 through 
contributing the dividends declared to Sinovac Hong Kong but unpaid in amount of $2.9 million.  We 
currently own 73.09% of the equity interest in Sinovac Beijing. 

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 November 2009, we entered into an agreement with Dalian Jin Gang Group to establish Sinovac 
Dalian. In January 2010, we established Sinovac Dalian which will focus on the research, development, 
manufacturing and commercialization of vaccines, such as rabies, varicella, mumps and rubella 
vaccines for human use. We plan to manufacture live attenuated vaccines and vero cell cultured 
vaccines at the production facilities of Sinovac Dalian. Pursuant to the joint venture agreement, we 
have made an initial cash contribution of RMB60 million in exchange for a 30% equity interest in 
Sinovac Dalian and Dalian Jin Gang Group has made an asset contribution of RMB140 million 
including manufacturing facilities, production lines and land use rights, in exchange for the remaining 
70% interest in Sinovac Dalian. We have also entered into an agreement with Dalian Jin Gang Group, 
under which we have agreed, subject to the approval of the PRC government, to increase our 
shareholding in Sinovac Dalian to 55% through purchasing 25% equity interest in Sinovac Dalian from 
Dalian Jin Gang Group Co., Ltd., or Dalian Jin Gang Group for a consideration of RMB50 million on 
or before December 31, 2010. The transaction was completed before December 31, 2010, and Sinovac 
has increased the shareholding to 55% and Dalian Jingang holds 45%. 

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

In February 2010, we entered into an agreement to acquire buildings, land use rights and utility 
facilities in Changping District, Beijing for a total consideration of approximately RMB123.6 million. 
As of December 31, 2011, we have paid RMB90.1 million and the remaining payable of RMB33.5 
million ($5.3 million) will be due before December 31, 2012. To finance this purchase, we borrowed a 
five-year bank loan of RMB90 million ($14.1 million) from China Construction Bank, for which we 
have received RMB76.5M ($12.2 million) as of December 31, 2011. We have already completed the 
construction of a new warehouse and in the process of setting up a new filling and packaging line in 
compliance with the WHO standards and a production line for EV71 vaccine. 

  
  
  
  
  
  
  
  
We have increased the capital investment to Tangshan Yian with the total amount of $2.2 million. 

The increased investment is primarily used for the construction of a GMP-compliant animal rabies 
vaccine production plant. 

In October 2011, we purchased an additional 1.53% interest of Sinovac Beijing and increased our 
ownership from 71.56% to 73.09% through contributing declared but unpaid dividends in the amount 
of $2,906,308 (RMB18,605,600). 

For additional information regarding our principal capital expenditures, see ―— D. Property, Plants 

and Equipment.‖ 

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 the research, 
development, manufacturing and commercialization of vaccines that protect against infectious diseases. 
We have successfully developed a portfolio of market leading products, consisting of vaccines against 
the hepatitis A, hepatitis B and influenza viruses. In 2002, we launched our first product, Healive, 
which was the first inactivated hepatitis A vaccine developed, produced and marketed by a China-
based 

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manufacturer. In 2005, we received regulatory approvals in China for the production of Bilive, a 
combined hepatitis A and B vaccine, and Anflu, a split viron influenza vaccine. In April 2008, we 
received regulatory approval in China for the production in China of our whole viron pandemic H5N1 
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 
2011, our animal rabies vaccine was approved by the Ministry of Agriculture for commercialization. In 
December 2011, Sinovac Dalian, an operating subsidiary of the Company obtained the production 
license from the SFDA for its mumps vaccine product. Sinovac Dalian, applied for the GMP 
certification of its mumps vaccine production plant with the SFDA in March 2012 and is currently is 
waiting for notification of the inspection date from the SFDA. Our pipeline consists of various vaccine 
candidates in the pre-clinical and clinical development phases in China. We obtained approval from 
SFDA to commence human clinical trials of a vaccine for EV71 (hand, foot and mouth disease) on 
December 23, 2010. In 2011, phase I and II clinical trials of the EV 71 vaccine were completed. We 
initiated phase III clinical trial in January, 2012. We filed an application for the clinical trials of 
pneumococcal conjugate vaccine, pneumococcal polysaccharides vaccine and rubella vaccine in early 
2011. Our product pipeline also includes human vaccines for rotavirus, human rabies, and varicella that 
are in pre-clinical development. 

Our Products 

We specialize in the sales, marketing, manufacturing, and development of vaccines for infectious 

disease with significant unmet medical need. Set forth below is a table that outlines our current 
marketed products and those that we have developed or are developing. 

Pre- 
clinical   

File 
IND    

Obtain Clinical 
Approval from 
SFDA 

   Phase I     Phase II     Phase III   On sale 

(1) 

(2) 

Product 
Healive 

Bilive 

Indication 
  Hepatitis A 

Hepatitis A & 
B 

Anflu 

  Influenza 

Panflu Whole 
Viron Pandemic 
Influenza Vaccine   

Pandemic 
Influenza 
Virus 

Split Viron 
Pandemic 
Influenza Vaccine   

Pandemic 
Influenza 
Virus 

Panflu.1 

RabEnd 

Influenza A 
H1N1 virus 

Rabies Virus 
(in animals) 

EV71 Vaccine 

  EV71 Virus 

Mumps Vaccine    Mumps 

.......................................................................   

Pneumococcal 
Conjugate 
Vaccine 

Pneumococcus 

Pneumococcal 
Polysaccharides 

Pneumococcus 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
     
     
     
     
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Vaccine 

Rubella Vaccines   Rubella 

Rotavirus 
Vaccine 
Rabies Vaccine 
for Humans 

Varicella Vaccine 

Rotavirus 

Rabies Virus 
(in humans) 

Varicella-
zoster virus 
(Herpesvirus 
3, Human) 

(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 will not undergo Phase III clinical trials 

because none were required by the relevant authorities in order to receive regulatory approval. 

             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 

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Table of Contents 

contagious and can be spread by close personal contact, by consuming contaminated food or by 
drinking water that has been contaminated by hepatitis A. 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 Chinese government included hepatitis A vaccine into its national 
immunization program, and announced plans to expand vaccination to newborns nationwide by 
the end of 2010. According to the NIFDC lot release records, 29.37 million doses of hepatitis A 
vaccines were approved and released in 2011 in China. Administered intramuscularly, Healive is 
available in different doses for use by both adults (1.0 ml dose) and children (0.5 ml dose). Our 
production line to manufacture our hepatitis vaccines, Healive and Bilive, interchangeably has an 
aggregate combined production capacity of approximately 10 million doses annually. In 2009, 
2010 and 2011, we sold approximately 3.1 million 2.6 million and 2.7 million doses of Healive, 
which generated approximately $33.0 million, $12.6 million and $14.1 million in revenues, 
respectively. Since we launched Healive in 2002, we have sold a total of approximately 31 million 
doses as of December 31, 2011. We are selling Healive in Mongolia and Nepal and are currently 
seeking the regulatory approval to sell Healive in India and Ukraine. 

 

 

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. Bilive vaccinations must be privately paid by the recipients under China’s current 
vaccination program. 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. Currently, we are the only supplier in China that produce a combined inactivated 
hepatitis A and B vaccine, and our market share in China, according to the NIFDC lot release 
records, is 100% in 2011. Bilive is available in different doses for use in both adults and children. 
The 1.0 ml dose is for non-immune adults and adolescents 16 years of age and older. The 0.5 ml 
dose is for pediatric use in non-immune infants, children and adolescents from one year up to and 
including 15 years of age. The standard Bilive vaccination schedule consists of three doses. The 
second dose is administered one month after the first dose and the third dose is administered six 
months after the first dose. Booster vaccinations are recommended five years after the initial 
immunization. Our production line to manufacture our hepatitis vaccines, Healive and Bilive, 
interchangeably has an aggregate combined production capacity of approximately 10 million doses 
annually. In 2009, 2010 and 2011, we sold approximately 946,000, 684,000 and 1.8 million doses 
of Bilive, which generated approximately $6.2 million, $3.6 and $12.7 million in revenues, 
respectively. 

Anflu.  In October 2005, we received the final approval from the SFDA to produce our Anflu 
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, or IVS, task force 
member from a developing country that collaborates with world-class partners in influenza vaccine 
research. Our Anflu vaccine is an inactivated split viron influenza vaccine formulated from three 
split inactivated viron solutions. Anflu is produced with the virus strains recommended by the 
WHO each year and, we believe, is the only flu vaccine, among all produced by other domestic 
manufacturers that do not contain preservatives. According to the NIFDC lot release records, 
41.83 million doses of influenza vaccines were approved and released in China in 2011, compared 
to 48.2 million doses in 2010. Our production line to manufacture our flu vaccines, Anflu, Panflu 
and Panflu.1, interchangeably has an annual production capacity of approximately 8 million doses 
of Anflu. We sold 5.1 million, 2.4 million and 2.2 million doses of Anflu in 2009, 2010 and 2011, 
which generated approximately $15.2 million, $7.6 million and $8.1 million in revenues, 
respectively. Anflu is registered for sale in the Philippines. We are currently seeking the regulatory 
approval to sell Anflu in India and Mexico. 

  
  
  
       
  
       
  
       
 

 

Panflu.  In April 2008, we were granted a production license for Panflu by the SFDA. Panflu is the 
only approved vaccine available in China against the H5N1 influenza virus although we received 
the virus strains at the same time as other manufacturers globally, which demonstrated our strong 
research and development capability. 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 the Hong Kong market. 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 or 20 million doses of Panflu.1 
given the yield of virus strain received from WHO. We started to sell Panflu in August 2009.  Our 
revenue from the sale of Panflu amounted to $64,318, $2.4 million and $7.8 million in 2009, 2010 
and 2011, respectively.  

Panflu.1.  In September 2009, we were granted a production license for Panflu.1 by the SFDA. 
Panflu.1 is the first approved vaccine in the world against the influenza A H1N1 virus. The 
outbreaks of influenza A H1N1 was caused by a new virus that has not been seen previously in 
either human beings or animals. We received orders of 20.97 million doses as of the date of this 
annual report. According to the NIFDC lot release records, we were ranked No. 2 in market share 
in China in 2009 and No. 3 in 2010. 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 or20 million doses of Panflu.1. We started to sell  

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Table of Contents 

Panflu.1 in September 2009. Our revenue from the sale of Panflu. 1 amounted to approximately 
$29.7 million, $7.2 million, and $14 million in revenues in 2009, 2010, and 2011 respectively. 
Panflu.1 is also registered for sale in Mexico. 

 

 

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. The production license was granted on November 11, 2011, 
which was approved to be used among the teenagers aged from 12 to 17. 

RabEnd. Animal rabies is the leading cause of transmission that results in human rabies. Animal 
vaccination can reduce the incidence of rabies in humans by reducing human contact with rabid 
animals. On January 18, 2008, China approved compulsory vaccination for dogs. The construction 
of animal rabies vaccine production line in Tangshan has been completed. We launched RabEnd, 
the inactivated animal rabies vaccine, in China in September 2011 after obtainingthe required 
approvals, including the production license, the New Animal Drug Certificate and the GMP 
Certificate. 

Our pipeline consists of vaccine candidates in the clinical and pre-clinical development phases in China, 
including human vaccines for the EV71 virus, pneumococcal, rotavirus, rabies, varicella and rubella 
that have completed or are in pre-clinical development. And we are waiting for the GMP certification 
notice for our mumps vaccine plant from SFDA. 

 

 

EV71 virus.  Enterovirus 71, or EV71, causes hand, foot and mouth disease, or 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 in China, Malaysia, Singapore, Australia , Vietnam and 
Taiwan. According to the China CDC in 2009, over 1.1 million cases were reported in China, with 
over 353 reported fatalities. In 2010, over 1.7 million cases were reported in China, with over 880 
reported fatalities. And in 2011, over 1.6 million cases were reported in China, with over 500 
fatalities. There is no identified treatment for enterovirus infections and no vaccine is currently 
available. We have started our research and development of the EV71 vaccine since 2007, and our 
animal model has shown good safety and immunogenicity. In December 2009, the SFDA accepted 
our application to commence human clinical trials, which is the first clinical trial application for 
the EV71 vaccine in China. We have obtained the approval from SFDA to commence clinical 
trials on December 23, 2010 and have initiated phase I clinical trial for EV71 vaccine on 
December 30, 2010. We completed phase I and II clinical trials in 2011and initiated the phase III 
clinical trial in January 2012. We have five pending PRC patent applications relating to the EV71 
vaccine in China. Our EV71 vaccine will target children five years old or under, who numbered 
approximately 80 million in China. 

Pneumococcal Conjugate Vaccine.  Pneumococcal is a leading cause of serious illness in children 
and adults throughout the world. The disease is caused by a common bacterium, the 
pneumococcus, which can attack different parts of the human body. According to the WHO, 
pneumococcal disease is the leading vaccine-preventable killer of children under five years old in 
the world. At least one million children die of pneumococcal disease every year, most of them 
young children in developing countries. Since the U.S. commenced vaccination programs against 
this disease, the pneumococcal disease incidence has decreased by 94% in the U.S. Currently, in 
China, the only similar product is available from Pfizer (Prevnar). No domestic producer has a 
license to supply this vaccine. Our pneumococcal conjugate vaccine will primarily target children 
two years old or under, who numbered approximately 32 million in China. We filed an application 
for clinical trials with the SFDA in March 2011.  

 

Pneumococcal Polysaccharides vaccine.  Pneumococcal polysaccharide vaccine, or PPV, is a 
vaccine used to prevent Streptococcus pneumoniae (pneumococcus) infections such as pneumonia 

  
  
  
  
    
  
       
  
  
  
  
       
  
       
  
and septicemia. In the United States, PPV is recommended for adults 65 years of age or older, 
adults with serious long-term health problems, smokers, and children older than two years with 
serious long-term health problems. The WHO recommendations are similar. The safety of the 
current polysaccharide vaccines in older children and non-pregnant adults is well documented. We 
filed an application for clinical trials to the SFDA in February 2011.  

 

 

Rabies in humans.  Rabies is an infection of the central nervous system acquired through the bite 
of a rabid animal. The WHO recognizes rabies as the infectious disease with the highest fatality 
rate in humans, which is 100% when left untreated. Rabies is prevalent in China and the only 
preventative treatment against rabies in humans is vaccination. China is among the countries most 
threatened by rabies. Based on available data, approximately 2,400 fatal human cases of rabies are 
reported each year in China.  We are conducting pre-clinical study of a human rabies vaccine.  

Varicella.  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. According to 
the  

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NIFDC lot release records, 14.2 million doses of varicella vaccines were approved and released in 
China in 2011, compared to 13.6 million doses in 2010. We are conducting pre-clinical trials of a 
human vaccine for Varicella.  

 

 

Mumps and Rubella.  Mumps is a viral disease of the human species, caused by the mumps virus. 
It is a significant threat to health in the developing countries. According to the NIFDC, in 2011, 13 
million doses of vaccines for mumps were approved for sale in China. Rubella is a disease caused 
by the rubella virus and an acute infection is normally associated with the symptoms of fever and 
systemic rash. We are expecting GMP inspection on the production plant of mumps and we expect 
our mumps vaccine to be approved for commercialization in the second half of 2012. We 
completed the pre-clinical study for rubella vaccine and submitted the clinical trial application to 
SFDA in April 2011. Our long-term objective is to launch an MMR vaccine, a mixture of three 
live attenuated viruses, administered via injection for immunization against measles, mumps and 
rubella, in five years. According to the NIFDC lot release records, 26.3 million doses of MMR 
were approved and released in China in 2011, compared to 26.6 million doses in 2010. In 
February 2008, the Chinese government included MMR vaccine in its national immunization 
program.  

Rotavirus.  Rotavirus is a common cause of severe diarrheal disease in infants and young children 
worldwide. Primarily transmitted by the fecal—oral route, rotaviruses affect the vast majority of 
children worldwide under the age of three, and in particular affect children under one year old in 
most developing countries. WHO highly recommends each country to include a rotavirus vaccine 
in its national immunization program. The rotavirus vaccine mainly targets young infants under 
one year old, numbering approximately 16 million in China. There is currently only one supplier 
of Rotavirus in China. According to the NIFDC, in 2011, 5.8 million doses of vaccines for 
rotavirus were approved for sale in China, which we believe do not fully satisfy market demand. 
We are conducting pre-clinical trials of a human vaccine for rotavirus derived from the virus strain 
licensed by us from an entity in the U.S. 

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 and 
Panflu.1 and RabEnd, and have made significant advances in the prevention of SARS. We believe that 
we were the first company in the world to complete a Phase I clinical trial of a SARS vaccine. In 
addition, our avian influenza vaccine product, Panflu, is the only approved vaccine available in China 
against the H5N1 influenza virus. Our Panflu.1 is the first approved vaccine in China and the world 
against the influenza A H1N1 virus. We believe our R&D capabilities provide us with a key 
competitive advantage. We intend to continue to focus our research and development efforts on 
developing vaccines for infectious diseases with significant unmet medical needs, such as pandemic 
influenza (H5N1), influenza A H1N1 and EV71, as well as the vaccine products with extensive market 
demand in China and other developing countries, such as pneumococcal vaccines, rotavirus vaccine 
and human rabies vaccine. We have started our research and development of the EV71 vaccine since 
2007, and we obtained the approval to commence clinical trials for EV71 vaccine from SFDA on 
December 23, 2010. Phase I and II clinical trial were completed in 2011. We initiated phase III clinical 
trial on EV71 vaccine in January 2012. In 2008, we initiated the research and development projects on 
pneumococcal conjugate vaccine and pneumococcal polysaccharide vaccine, rotavirus vaccine, and 
other vaccines. We have completed the preclinical studies on pneumococcal conjugate vaccine and 
pneumococcal polysaccharide vaccine. The applications for commencing human clinical studies were 
submitted to SFDA in 2011. 

In 2008, we restructured our R&D team in Beijing to better utilize our scientific and personnel 
resources. In 2009, we built a R&D center of approximately 13,300 square feet in the campus of our 
Beijing headquarter, which we expect will meet our current R&D demand to conduct three to five 
research projects at the same time. In 2011, we built a lab of 6,778 square feet, which is focused on 
maintaining quality control of our pipeline products. 

  
  
  
       
  
       
  
  
  
  
  
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 virus strains use 
rights licensing . We have entered into 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. Set forth below are examples of projects on which we have collaborated: 

Partner 
National Institute for Viral 
Disease Control and Prevention 
of China CDC 

Institute of Laboratory Animal 
Sciences, University of 
Agriculture 

University of Sydney 

National Institute for Viral 
Disease Control and Prevention 
of China CDC  

Tianjin CanSino Biotechnology 
Inc.  

United States Public Health 
Services  

Projects 

Universal Pandemic 
Influenza Vaccine 
(National High-Tech 
Research and Development 
Plan) 

Inactivated Animal Rabies 

Scope of Collaborations 

Vaccine development 

Inactivated animal rabies 
vaccine development 

   EV71 

EV71 

   Animal model 

Obtaining virus strain 

Pneumococcal vaccine  

Co-development  

Rotavirus 

Patent license to transfer  

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within the Department of Health 
and Human Services 

of virus strain 

The continuous investment in R&D is one of our strategies, which, we believe, will ensure the 
company’s future growth. Our research and development expenses were $4.4 million, $8.55 million 
and $ 9.0 million in 2009, 2010 and 2011, respectively. We have obtained financial support from the 
PRC government to conduct preclinical and clinical research of vaccines for government-sponsored 
programs, including SARS and pandemic influenza. We received government research funding in the 
amount of $1.3 million, $372,012 and $893,000 in 2009, 2010 and 2011, respectively. 

Sales and Marketing 

Our sales strategy is to maintain our market share and competitive advantage in the private vaccine 

sales market while leveraging this strength to established a presence in the government-paid market. 
We also will continue to maintain and develop stable, solid and long-term relationships with the 
various provincial and municipal CDCs that constitute our key customer base. To this end, we engage 
in various marketing activities to promote our products and services. We provide our services based on 
our well understanding of the demands of CDC. For instance, we regularly hold academic symposia for 
our CDC customers during which a group of experts and scholars invited by us give lectures to the 
CDC personnel and update them on the latest research progress in diseases and vaccines. We also assist 
our CDC customers in ―grass roots‖ disease prevention efforts. In addition, we collaborate with 
provincial and municipal CDCs to offer training programs related to disease control and prevention 
with a view to enhancing the public’s awareness and knowledge about epidemic prevention and control. 
We also employ traditional marketing tools to promote our products such as exhibiting posters at 
scientific conferences and publishing academic papers in academic journals, such as the Chinese 
Journal of Vaccines and Immunization and Chinese Journal of Epidemiology. 

In 2011, we successfully implemented our strategy of increasing our sales of Bilive in private 
market to offset the decrease in sales of Healive in private market due to its inclusion in China’s EPI 
program. Revenue generated from Bilive in private market increased by 249% to $12.7 million in 2011. 
And combining the sales revenue of $7.3 million generated from Healive in private market, the sales 
generated from hepatitis vaccines in private pay market totaled approximately $20 million, compared 
to $12.6 million in 2010. Meanwhile, we have implemented a special task force composing of 
experienced sales professionals focusing on EPI sales, which resulted in $8.2 million generated from 
EPI sales in 2011, increasing 71% compared to $4.8 million in 2010. 

Unlike many of our competitors who typically rely on third-party distributors to sell to the CDCs, 
China’s dominant channel for vaccine sales, our sales and marketing team, which comprised 165 staff 
members in 31 provinces throughout China as of December 31, 2011, in most cases, sells directly to 
the CDCs. This network enables us to better control the supply chain and gain a deeper understanding 
of the end market. Our sales network has a national coverage across China. We enter into sales 
agreements with CDCs each time a CDC places a purchase order. Pursuant to the sales agreements, 
CDCs typically agree not to re-sell our products to regions outside the territory the pertinent CDC 
covers administratively. Our sales team has created stable relationships with our customers by 
providing them with technical support and trainings. We believe these efforts have contributed to our 
reputation for quality and brand awareness in the Chinese vaccine market. 

We intend to increase our sales to international markets and enhance awareness of our products 
outside of China. Our products are currently registered in Hong Kong (Panflu and Anflu), Mexico 
(Panflu.1), Nepal (Healive) and the Philippines (Anflu). We have already exported some of our product 
to Philippines, Nepal and Mongolia. We are currently seeking regulatory approval to sell a number of 
our products in countries such as India (Healive), Mexico (Anflu), and Pakistan (Healive and Anflu), 
and Ukraine (final bulk of Healive). We will continue to explore the globalization of our portfolio and 
develop products targeting other potential international markets where we believe we can be successful. 
In addition, we have also entered into various distribution agreements with international healthcare 
companies such as Glovax to distribute products in different parts of the world. Such business 
partnerships enable us to explore business opportunities internationally. 

  
  
  
  
  
  
  
  
  
  
  
In May 2011, we agreed to terminate the exclusive distribution agreement entered into with LG Life 

Sciences, Ltd. on February 29, 2006 in response to a request of LG Life Sciences to terminate the 
agreement in February 2011.  According to the agreement, Sinovac shall exclusively help LGLS 
register and market its hepatitis B vaccine in China. Due to LGLS’ reassessment of the market potential 
of the vaccine, it decided to terminate the agreement.  We do not think there will be any material 
impact on our business. 

On June 14, 2011, we terminated the exclusive distribution agreement entered into with Parenteral 

Biotech Ltd. on April 15, 2009. According to the agreement, Parenteral is obligated to assist us to 
register and market our Anflu product in India on an exclusive basis. After a reassessment of the 
registration process of Anflu, however, we decided to terminate this agreement. 

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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. You should 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. 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 we use, with the exception of the hepatitis B antigens we use for 
Bilive production. We source the hepatitis B antigens we use for Bilive production entirely from 
Beijing Temple of Heaven, pursuant to a long-term supply agreement. In an agreement dated 
October 15, 2002, we agreed to purchase all hepatitis B antigens to be used in our Bilive production 
exclusively from Beijing Temple of Heaven for ten years and to enter into a separate supply agreement 
in the future to specify the pricing, quantity, delivery and payment terms of the hepatitis B antigens 
supply relationship. The agreement will expire in October, 2012. It is uncertain whether Beijing 
Temple of Heaven will continue to furnish us with hepatitis B vaccine after the expiry of the 
agreement.  Raw materials generally have been 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 Haidian District and Changping District of Beijing, 

Dalian City of Liaoning Province, and Tangshan City of Hebei Province. 

We have two production lines and one filling and packaging line located in our principal 

manufacturing facility in Haidian District of Beijing. All of our three lines are Chinese GMP-certified. 
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 eight million doses, which can 
also be used to produce Panflu and Panflu.1. The annual capacity of the current filling and packaging 
line is 20 million doses. Our Healive, Bilive and Anflu facilities received their GMP certificates 
initially in March 2002, June 2005 and October 2005, respectively and renewed their GMP 
certificates for another five years in 2008, 2010 and 2010 respectively. The GMP certification was 
granted to our filling and packaging facility on February 2, 2009. We are required to meet the newly 
implemented GMP standards by December 31, 2013 

Our new production site in Changping District of Beijing is still under construction, which will 

be used to produce our EV71 vaccine. The EV71 vaccine production line has a designed annual 
capacity of 10 to 20 million doses. Meanwhile, we are also building a new filling and packaging line 
in Changping site. The two lines are designed and constructed in compliance with the new China 
GMP standard, which is very similar to the WHO GMP standard. 

Our production site in Dalian focuses on the manufacturing of live attenuated vaccine and human 

rabies vaccine. In December, 2011, we have obtained the production license from SFDA for our 
mumps vaccine.  In March 2012, we applied for the GMP certification inspection with SFDA, and 
currently we are waiting for the notification of GMP inspection from SFDA. 

Our production site in Tangshan city focuses on the manufacturing animal vaccines. 

  
  
  
  
  
  
  
  
  
  
  
Each of our production sites has its own department responsible for quality assurance, or QA. 

These QA departments are directly supervised by a QA team at our headquarter, which is responsible 
for establishing QA procedures for production of our human vaccine products. We are establishing QA 
procedures for the production of our animal vaccine products, which differs from the QA procedures 
for our human vaccine products due to differences in authorities and policies governing these two types 
of products. The QA departments at the subsidiary level are responsible for executing the QA 
procedures established by our headquarter level QA team during the manufacturing process. In addition, 
the headquarter level QA team also provides training to our subsidiary level QA teams on a regular 
basis. 

We have four production sites in China. Each of them has its own quality assurance departments, 

who are under the supervision of QA team of Sinovac Beijing. The QA team at parent level is 
responsible for establishing quality assurance system and procedures for the three human vaccine 
productions. QA departments of each subsidiary manufacturing human vaccines is responsible to 
execute based on the system established by the parent company. Timely training is provided by QA 
team at parent level to the QA team at subsidiaries. The parent company’s QA team is also assisting 
Tangshan Yian on establish animal vaccine production quality assurance procedures, but the quality 
governing organization and policies are different from human vaccine. 

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We have established an Adverse Effect After Immunization, or AEFIs, response system under 

which a team of experts, professors and doctors responds to AEFIs within 24 hours to handle any 
emergency reported from users of our vaccine products. We also ensure that we have an effective 
internal reporting system to report any serious adverse event, or SAE, related to vaccine use to the 
SFDA promptly as mandated by the SFDA and the Ministry of Health of the PRC. 

Collaborations 

We licensed from MedImmune, LLC certain rights to use patented reverse genetics technology 
pertaining to virus strain production for vaccines, including the H5N1 influenza virus strain. We have 
agreed to pay an upfront license fee and to pay milestone payments of up to an aggregate of $6.5 
million conditional 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 digit of net 
sales of the licensed products in China (including Hong Kong and Macau). As of December 31, 2011, 
an upfront license fee was included in the account payable and accrued liabilities. No milestone 
payments have been paid or are payable because the cumulative net sales target has not been achieved. 

In August 2009, we entered into a patent license agreement with the National Institutes of Health, or 

PHS, an agency of the United States Public Health Services within the Department of Health and 
Human Services. PHS grants us a non-exclusive license to make and use its certain licensed products. 
PHS also grants us the right to use the relevant information for development of its licensed products. 
We have agreed to pay PHS a license issue royalty of $80,000 and a non-refundable minimum annual 
royalty of $7,500, and royalty payments on net sales with a range in single digit depending on the sales 
territory and the customers. The Company has also agreed to pay PHS benchmark royalties upon 
achieving each benchmark as specified in the patent license agreement. In 2011, the Company recorded 
a license issue royalty of $21,125 (2010 - $7,500; 2009 - $90,274) in research and development 
expenses. 

In July 2009, Tangshan Yian entered into a research agreement with University of Sydney on 

protective research of EV71 vaccine in animal model. The research purpose is to evaluate the efficacy 
of EV71 vaccine on mice after challenging mice with EV71 virus. Based on the agreement, the animal 
model was established by the University of Sydney and the study results showed good efficacy profile 
of EV71 vaccine candidate with cross protection against other sub-type of EV71 virus. On July 20, 
2009, Tangshan Yian entered into a transfer agreement with Sinovac Beijing. Therefore, Sinovac 
Beijing has the ownership of this research and has full right to use it. 

In March 2009, we entered into a technology transfer agreement with Tianjin CanSino 

Biotechnology Inc., a non-related company, to develop a 7-valent pneumococcal conjugate vaccine. 
The collaboration term under the technology transfer agreement is from the signing date to eight years 
after the first sales of the vaccine developed under the technology transfer agreement in the Chinese 
market. Under this technology transfer agreement, we agreed to make milestone payments of up to $3 
million and royalty payment based on net sales in Chinese market. Each of the future milestone 
payments is subject to certain conditions, including the PRC government approvals at different stages, 
which are uncertain. We also agreed to make royalty payments in eight years after the first sales of the 
vaccine developed under the technology transfer agreement in the Chinese market. The percentage of 
royalty payments for the portion of annual net sales below RMB100 million will be in the teens and the 
percentages of royalty payments for the portion above RMB100 million will be of single digits. The 
sales of the pneumococcal vaccine in the Chinese market are also subject to the PRC government 
approval. Both parties agreed to work together to develop international markets for the products. On 
December 14, 2011, we entered into an amendment to the technology transfer of another six serotypes 
and related technology to us for $300,000 to develop a 13-valent pneumococcal conjugate vaccine. As 
of the date of this annual report, we have paid a total of $1 million in milestone payments to this party. 

In December 2008, we entered into a distribution agreement with IP-BIOTECH, a trade company in 

Philippines, we appointed IP-BIOTECH to be the exclusive distributor of Anflu in the Philippine 
market.  We obtained registration approval for Anflu with Northern hemisphere influenza strains for 
the period 2010-2011 in November 2011, and we have distributed 170,500 doses of our Anflu in 
Philippines since 2010. 

  
  
  
  
  
  
  
In July 2008, Sinovac Beijing and Tangshan Yian entered into the co-development agreement with 

the Institute of Laboratory Animal Sciences of the University of Agriculture to jointly develop the 
animal rabies vaccine. Sinovac Beijing is responsible for assigning technical personnel to develop an 
animal rabies vaccine. The Institute of Laboratory Animal Sciences is responsible for making 
development strategy and provides guidance on the roadmap design for vaccine development and to 
assist Tangshan Yian on regulatory applications with the animal rabies vaccine. Tangshan Yian is 
responsible for establishing the R&D center and commercial production line for animal rabies vaccine 
and carrying out vaccine development project, applying for the New Drug Certificate for animal rabies 
vaccine, and providing the financial resources, etc. Tangshan Yian will be the applicant for and the 
exclusive owner of the future new drug certificate, production license and any patent or know-how in 
connection with the animal rabies vaccine. In 2011, the animal vaccine has been approved for sales. 

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In June 2008, we entered into the collaboration agreement with the National Institute for Viral 

Disease Control and Prevention of China CDC on the separation, selection, cultivation and verification 
of EV71 virus strain, through which we obtained the appropriate EV71 virus strain with good 
immunogenicity and cross protection effects for vaccine production. 

In November 2006, Sinovac Beijing entered into a co-development agreement with National 
Institute for Viral Disease Control and Prevention of China CDC to jointly develop a universal 
pandemic influenza vaccine, which was included in the ―863 National High-Tech Research and 
Development Plan.‖ The purpose of the project is to obtain the approval from the SFDA to commence 
the clinical trials. 

In February 2006, we entered into an exclusive distribution agreement with LGLS under, which 

LGLS granted us an exclusive right to market and distribute its hepatitis B vaccine, Euvax B, in 
mainland China for five years from the date we obtain regulatory approval for the sale of the product in 
China. This is the first strategic alliance that we have made with a major vaccine supplier to capitalize 
upon our local knowledge and technology expertise in the vaccine industry. On March 7, 2007, we 
filed the application for regulatory approval for product registration for sales of Euvax B in China. 
During 2008, we worked with LGLS and the NIFDC on the vaccine’s testing and verification of drug 
standards to speed up the sample tests. In July 2009, the NIFDC completed the sample tests and 
verification of drug standards for Euvax B and the sample test report has been forwarded to the Center 
for Drug Evaluation of SFDA, or CDE. On December 26, 2009, we submitted the supplementary 
documents required by the CDE for technology evaluation as part of the approval process and obtained 
the approval from SFDA to commence clinical trials in China in April 2010. Due to the reassessment 
of hepatitis B vaccine market potential in China, LGLS has decided to terminate the agreement. We 
accepted the termination request.  We do not think there will be any material impact on our business. 

In August 2005, we entered into a distribution agreement with Glovax C.V., a Dutch 

biopharmaceutical company with operations in Mexico, pursuant to which we appointed Glovax to be 
the exclusive distributor of our vaccine products in the Mexican market. We obtained the registration 
approval for our H1N1 vaccine in Mexico on October 13, 2009, and GMP license for both Anflu and 
Healive from Mexico government. 

In December 2004, we signed a pandemic influenza vaccine co-development agreement with China 
CDC to jointly develop a pandemic influenza vaccine. Pursuant to this co-development agreement, we 
agreed, among other things, to conduct pandemic influenza vaccine R&D based on our established 
vaccine R&D technical platform and to apply for the new drug certificate, production license and 
patents for the pandemic influenza vaccine. China CDC agreed, among other things, to strategize 
development of the pandemic influenza vaccine, provide us with scientific guidance to vaccine 
technicalities and conduct certain pandemic related research and vaccine development-related analysis 
and testing. Both parties agreed to be responsible for certain specified expenditures associated with the 
vaccine development and to jointly apply for government R&D funds. However, the co-development 
agreement expressly provides that we will be the applicant for and owner of the future new drug 
certificate, production license and any patent or know-how in connection with the pandemic influenza 
vaccine. In return, we have agreed to fund and support China CDC’s influenza-related investigation 
and other pandemic control efforts after we gain profits from the sale of pandemic influenza vaccines. 
The regulatory approval for production of our whole viron pandemic influenza vaccine was obtained in 
April 2008. 

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 recent years, SFDA 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 can no longer be sold in China. However, 
according to the SFDA, there are approximately 40 vaccine companies in China, of which we believe 
approximately 10 are our direct competitors. In addition, multinational companies have started to 

  
  
  
  
  
  
  
localize their vaccine production in China by making acquisitions and by forming joint ventures with 
Chinese companies, which is expected to further intensify the competition. 

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 
their own vaccines 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 is health conscious yet price sensitive and accordingly would favor our products over 
both cheaper but less safe vaccines provided by local manufacturers and comparable quality but more 
expensive vaccines manufactured by some of our international competitors. Our competitors, both 
domestic and international, include large integrated multinational pharmaceutical and biotechnology 
companies, domestic state-owned entities and domestic private companies that currently engage in or 
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, as well as more experience in research and development, clinical trials, regulatory matters, 
manufacturing, marketing and sales. 

There are multiple vaccines products approved for sale worldwide. Many of these vaccine products 

are marketed by our major competitors and are in the areas of hepatitis A, hepatitis B and influenza. 
Specifically, with respect to the hepatitis A vaccine, we  

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consider Kunming Institute of Biological Product, Changchun Institute of Biological Products, 
Changchun Changsheng Life Sciences Ltd, and Pukang Biological Co., Ltd., and as our major 
competitors. With respect to the hepatitis A and B vaccines, we are the only company to supply 
hepatitis A and B vaccine in 2011. Finally, with respect to the influenza vaccines, we consider Hualan 
Biological Engineering Inc., Changchun Changsheng Life Sciences Ltd, Sanofi Pasteur S.A., 
Changchun Institute of Biological Products and Aleph Biological Co., Ltd. (Dalian Yalifeng) as our 
major competitors. 

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

                  vaccine development capability; 

                  safety and efficacy profile; 

                  product price; 

                  ease of application; 

                  length of time to receive regulatory approval; 

                  product supply; 

                  enforceability of patent and other proprietary rights; 

                  marketing and sales capability; and 

                  post sales service. 

Intellectual Property and Proprietary Technology 

Protection of our intellectual property and proprietary technology is very important for 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 our brand. Our ability to protect and use our intellectual property 
rights in the continued 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 continued 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 no patent protection for our hepatitis or influenza vaccines. We have three issued patents 

and a number of pending patent applications relating to our pipeline products in the PRC. 

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 these elements. 
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 and require our employees to assign to us all 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
of their inventions, designs and technologies they develop during their terms of employment with us 
and cooperate with us to secure patent protection for these inventions if we wish to pursue such 
protection. 

We also rely on administrative protection afforded new drugs through the protection period or 
monitoring period provided by the SFDA. During the protection period or monitoring period, third 
parties’ applications for manufacturing or importing the same drug are not accepted by the SFDA. Our 
vaccines, Healive and Bilive, were granted protection periods that expired in December 2007 and 
January 2008, respectively. 

We maintain nineteen registered trademarks in China, including Sinovac, Sinovac Chinese name and 
its logo, Healive, its Chinese name and logo, Bilive and its Chinese name, Anflu and its Chinese name, 
Panflu, its Chinese name and the logo, sPanflu and its Chinese name, PANFLU.1 and its Chinese name, 
EVLIVE for EV71 vaccine and its Chinese name We have registered ―Sinovac‖ trademark in Canada, 
Columbia, India, Korea, Malaysia, Thailand and the United States respectively and we have registered 
―Sinovac‖ as trademarks under the ―Madrid international trademark registration system,‖ which can be 
used in the member countries of Madrid Union, including France, United Kingdom, Germany, etc. 

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We currently use ―科兴‖ (Kexing) as part of Sinovac Beijing’s Chinese trade name in the PRC. We 

also intend to use ―科兴‖ (Kexing) as part of the Chinese trade name of Sinovac Dalian in the PRC. 
Shenzhen Kexing currently owns the ―科兴‖ trademark registered in China for Class 5 
(Pharmaceuticals) under the International Classification of Goods and Services. To protect our interest 
in using ―科兴‖ in our trade name, 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. The ―科兴‖ trademark 
owned by Shenzhen Kexing has not been identified as ―Well-known Trademark‖ by the relevant PRC 
authorities since we first started using ―科兴‖ in the trade name of Sinovac Beijing in 2001. If the ―科
兴‖ trademark owned by Shenzhen Kexing is ever officially identified as a ―Well-Known trademark‖, 
however, we may be subject to trademark infringement claim for the use of ―科兴‖ in our trade name. 
Although the trademark application and the trade name approval systems are administered separately in 
China, it is possible that we may lose our ability to use the ―科兴‖ trademark in our trade name 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. As 
our brand name is becoming more recognized in the vaccine market, we are working to maintain, 
increase and enforce our rights in our trademark portfolio, the protection of which is important to our 
reputation and branding. 

We have registered our domain names, including http://www.sinovac.com.cn, with the China 

Internet Network Information Center. 

Despite any measures we take to protect our intellectual property, no assurance can be made that 
unauthorized parties will not attempt to copy aspects of our products or manufacturing processes or 
otherwise our proprietary technology or to obtain and use information that we regard as proprietary 

Insurance 

We maintain property insurance coverage with an annual aggregate insured amount of 

approximately RMB321 million ($51 million) to cover our property and facilities from claims arising 
from fire, earthquake, flood and a wide range of other natural disasters. We do not currently carry 
product liability insurance for Healive, Bilive, Anflu, Panflu or Panflu.1. Moreover, 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 because such insurance program has not become available in mainland 
China. 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. In 2011, we generated 
$435,000 from exporting our products; however, we do not currently carry product liability insurance 
for international market sales. 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 carry limited 
insurance coverage.‖ 

Regulatory Framework of the Pharmaceutical Industry in the PRC 

The testing, approval, manufacturing, labeling, advertising and marketing, 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 SFDA regulates and supervises biopharmaceutical products under the 

Pharmaceutical Administration Law, the Implementing Regulations on Pharmaceutical 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 biopharmaceutical 
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, 
declaration, approval and transfer of new medicine registrations, applicable industry standards of 
manufacturing, distribution, packaging, advertising and pricing. 

  
  
  
  
  
  
  
  
  
Pre-clinical Laboratory Studies and Animal 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. Pre-clinical studies must be conducted in compliance with 
Good Laboratory Practice for Non-clinical Studies of Pharmaceuticals, or GLP. With respect to 
vaccines, the pre-clinical studies should also comply with Technical Guidance for Pre-clinical Studies 
on Preventive Vaccines. We must submit file package for IND (investigational new drug application) 
to provincial SFDA. The files should include pharmaceutical research, pharmacology and toxicology 
research, together with the records of manufacturing and testing and the sample of product candidate. 
We cannot commence human clinical trials until we get IND Application. We cannot assure that 
submission of an IND will result in the SFDA allowing human clinical trials to begin, or that, once 
begin, issues will not arise that result in the suspension or termination of such human clinical trials. 

Human Clinical Trials.  Clinical trials involve the administration of the product candidate to 
healthy volunteers or vaccinees 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  

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tolerance, and pharmacologic action. Phase II usually involves studies in a limited vaccinee population 
to evaluate preliminarily the efficacy of the drug for specific, targeted conditions and to determine 
dosage tolerance, 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 vaccinee 
population. Clinical trials have to be conducted in compliance with the Good Clinical Trial Practice of 
Pharmaceuticals, or GCP. With respect to vaccines, we also have to comply with the SFDA’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 
SFDA 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 human clinical trials, we will apply for NDA (New Drug Application). We will 
submit to the provincial level SFDA the NDA file package, which includes clinical trial research report, 
pharmaceutical research data, and records of manufacturing and testing three product batches, to apply 
for a new drug certificate. For vaccines, we have to comply with the SFDA’s Guidelines for Clinical 
Trial Report on Vaccines. 

New Drug Certificate.  The provincial level SFDA will conduct a preliminary examination of our 

application for a new drug certificate. Once it decides to accept our application based upon such 
preliminary examination, the provincial level SFDA will, within five days, conduct an on-site 
examination on the circumstances of our clinical trials. Then the provincial level SFDA will submit its 
opinion, together with our application materials, to the Centers for Drug Evaluation (CDE). CDE will 
review our application materials, and give their technical option to SFDA. The SFDA will decide 
whether or not to issue a new drug certificate to us. We consider obtaining the new drug certificate for 
our product candidates a significant milestone in our business. 

Production Permit.  Simultaneously with the application of new drug certificate, we also apply to 
the provincial level SFDA for a production license to manufacture the new drug to be approved by the 
SFDA. The production license application will be examined with similar stage procedure as for the 
new drug certificate, first by the provincial level SFDA followed by the CDE, and SFDA the last. After 
the provincial level SFDA accepts the application, conducts the on-site examination and forms its 
opinion, the provincial level SFDA will transfer the file to the CDE, and CDE will review the 
application files and give technical option. If CDE is satisfied with our application materials, it will 
notify us to apply for the on-site production inspection within six months after being so notified. The 
Center for Drug Certification (CCD) will conduct an on-site inspection on our production procedures 
within thirty days after receipt of our application and take samples from three batches of our products, 
and NIFDC will test the selected samples and later submit its testing reports to the CDE. The CCD 
shall submit the on-site production inspection report to within ten days after completion of the on-site 
inspection. The CDE will form a comprehensive opinion based upon the technical review and 
evaluation opinion, the on-site production inspection report and the testing results of the samples, and 
submit its opinion and relevant materials to the SFDA. The SFDA will decide whether or not to issue 
the production permit to us. If the product approval and production approval both meet the criteria, the 
SFDA will issue the production permit together with the new drug certificate at the same time. The 
production permit 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 the effective standards and regulations. 

Under certain circumstances, for instance, where drugs are developed to cure a disease without 
effective therapeutic methods, the SFDA provides a special proceeding for its review of the new drug 
certificate application and production permit application relating to such drugs. 

The SFDA will specify a monitoring period ranging from three to five years when approving the 
first production permit for most new drugs. During this monitoring period, the manufacturers holding 
the new drug certificates must regularly report, among other things, the production process, efficacy, 
stability and side effects of the new drugs involved to the provincial level SFDA. During the same 
period, the SFDA will not accept any new application for approval of the same drug involved. 
However, if a third party has filed an application for the same drug and obtained the clinical trial permit 

  
  
  
  
  
  
before the monitoring period commences, the third party may still obtain a new drug certificate and 
production permit for the same drug. 

We may also be required to conduct clinical trials prior to commencing the manufacture of 

pharmaceutical products for which there are published state pharmaceutical standards. 

GMP Certificate.  After receiving a new drug certificate and production permit, we will further need 

to submit to the SFDA an application for a Good Manufacturing Practice Certificate, or GMP 
Certificate. A GMP Certificate is used to approve the quality system, including Quality Assurance, or 
QA, and Quality Control, or QC, management, production management, material and product, 
qualification and validation, facility and equipment, etc. The SFDA has issued GMP standards for 
pharmaceutical manufacturers to minimize the risks arising out of the production process of drugs that 
will not be identified or eliminated through testing the final products. The application for a GMP 
Certificate should be approved or rejected within six months from the application date. 

A GMP Certificate is valid for five years and we should apply for a renewal of our GMP Certificate 

no later than six months prior to the expiration of our GMP Certificate. 

We cannot commence the manufacture of a new drug unless and until we have obtained a valid new 

drug certificate, production permit and GMP certificate. 

Batch Approval.  Our vaccine products cannot be distributed in the market before they obtain the 
batch approval. We need to apply for batch release approval by the NIFDC. 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 testing institute will  

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review the documents and test the samples and issue a batch approval within approximately two 
months, if our manufacture procedures and the quality of the products are ascertained to meet the 
standards as approved by the SFDA. With the batch approval, we may distribute the approved batch of 
vaccines to the market. 

Regulatory Framework of the Animal Vaccine Products in the PRC 

The testing, approval, manufacturing, labeling, advertising and marketing, 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 Ministry of Agriculture, or the MOA, regulates and supervises 
veterinary biopharmaceutical products under the Chinese veterinary pharmacopoeia, the Regulations on 
Veterinary Drug Administration, the Method of Registration of Veterinary Drug and other relevant 
rules and regulations which are applicable to manufacturers in general. Every step of our 
biopharmaceutical production is subject to the requirements on the manufacture and sale of Veterinary 
pharmaceutical products as provided by these laws and regulations, including but not limited to, the 
standards of clinical testing, declaration, approval and transfer of new medicine registrations, 
applicable industry standards of manufacturing, distribution, packaging, advertising and pricing. 

Pre-clinical Tests.  Pre-clinical tests 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. Pre-
clinical tests must be conducted in compliance with the Method of New Veterinary Drug Registration. 
With respect to vaccines, the pre-clinical tests should also comply with the Announcement No. 442 and 
No. 683 of the MOA. We must submit the results of the pre-clinical tests, together with manufacturing 
information, analytical data to the MOA as part of an investigational new drug application, which must 
be approved before we may commence clinical studies. We cannot assure that submission of an 
investigational new drug application will result in the MOA allowing animal clinical studies to begin, 
or that, once studies begin, issues will not arise that result in the suspension or termination of such 
animal clinical studies. 

Clinical Studies.  Clinical studies involve the administration of the product candidate to the target 

species under the supervision of the veterinary administration department, who are generally 
veterinarians or an independent third party not employed by us or under our control. Clinical studies 
typically are conducted in one phase. Clinical studies generally further evaluate clinical efficacy and 
test further for safety within an expanded animal population. Clinical studies have to be conducted in 
compliance with the Good Clinical Practice in the Guidance for Industry VICH GL9. We or the MOA 
may suspend clinical studies at any time on various grounds, including a finding that animals are being 
exposed to an unacceptable health risk. Assurance about the integrity of the clinical study data, and that 
due regard has been given to animal welfare and protection of the personnel involved in the study, the 
environment and the human and animal food chains. 

After clinical studies, we will submit a report containing the results of the pre-clinical and clinical 
studies to the MOA, together with other detailed information, including information on the 
manufacture and composition of the product candidate, to apply for a new veterinary drug certificate. 
For vaccines, we have to comply with the Announcement No. 442 and No. 683 of the MOA. 

New Veterinary Drug Certificate.  The Center for Veterinary Drug Evaluation of the MOA will 
conduct a formal examination of our application for a new veterinary drug certificate. Once it decides 
to accept our application based upon such formal examination, it will notify us within 10 working days 
and a group of experts will conduct a preliminary examination on our materials. The Center for 
Veterinary Drug Evaluation will distribute its opinion to the applicant, and the applicant will 
supplement the materials and tests according to the opinion. The applicant will then submit a 
supplemental application to the Center for Veterinary Drug Evaluation. The Center for Veterinary Drug 
Evaluation’s experts will reexamine on the supplemental application. If the Center for Veterinary Drug 
Evaluation is satisfied with our materials, it will ask for samples from three batches of our products and 
they will inspect the selected samples and later submit its inspection reports to the MOA. The Center 
for Veterinary Drug Evaluation will form a comprehensive opinion based upon the technical 
examination and evaluation opinion, and the inspection results of the samples, and submit its opinion 
and relevant materials to the MOA. The MOA will decide whether or not to issue a new veterinary 

  
  
  
  
  
  
  
drug certificate to us. We consider obtaining the new veterinary drug certificate for our product 
candidates a significant milestone in our business. 

GMP Certificate.  After conducting the workshop, we will need to submit an application for a Good 

Manufacturing Practice Certificate, or GMP Certificate to the MOA. A GMP Certificate is used to 
approve the manufacturing equipment, process and workshop used in producing a particular drug. The 
MOA has issued GMP standards for veterinary pharmaceutical manufacturers to minimize the risks 
arising out of the production process of veterinary drugs that will not be identified or eliminated 
through testing the final products. The application for a GMP Certificate will be examined through a 
two-stage procedure. The first stage is the static examination and the second stage is the dynamic 
examination. In the first stage, the MOA will conduct an examination in the static circumstance and 
will give us a notice to applying for the dynamic examination if they accept our static examination. 
After that, we will apply for the dynamic examination and if successful, the MOA will issue us a GMP 
certificate. 

A GMP Certificate is valid for five years and we should apply for a renewal of our GMP Certificate 

no later than six months prior to the expiration of our GMP Certificate. 

Production License.  After receiving the GMP certificate, we can apply to the MOA for a 

production license to manufacture the new veterinary drug. The MOA will issue the production license 
certificate to us within 40 working days. The production license is  

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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 the then effective standards and regulations. 

Product Permission Number.  After receiving the production license we can apply to MOA for a 
product permission number to manufacture the new drug. We should offer our GMP certificate, the 
production license certificate and the new veterinary drug certificate. The MOA will decide whether or 
not to issue the product permission number to us within 20 working days. 

We cannot commence the manufacturing of a new drug unless and until we have obtained a valid 

new drug certificate, GMP certificate, production license and product permission number. 

Under certain circumstances, for instance, where drugs are developed to cure a disease without 
effective therapeutic methods, the MOA provides for a special proceeding for its review of the new 
veterinary drug certificate application and production permit application relating to such drugs. 

The MOA will specify a monitoring period ranging from three to five years when approving the 
first production permit for most new drugs. During this monitoring period, the MOA will not accept 
any new application for approval of the same drug involved. However, if a third party has filed an 
application for the same drug and obtained the clinical trial permit before the monitoring period 
commences, the third party may still obtain a new drug certificate and production permit for the same 
drug. 

We can directly apply for product permission number of pharmaceutical products for which there 

are published state pharmaceutical standards. 

Batch Approval.  Our vaccine products cannot be distributed in the market before they are approved 
for sale by China Institute of Veterinary Drug Control. We have to apply for examination or inspection, 
or both examination and inspection, of each batch of our products by the China Institute of Veterinary 
Drug Control. For each batch of products, we will provide China Institute of Veterinary Drug Control 
with samples together with manufacturing records, internal inspection records and other quality control 
documents. The China Institute of Veterinary Drug Control will review the documents and/or inspect 
the samples and issue a batch approval within approximately three months if our manufacture 
procedures and the quality of the products are ascertained to meet the standards as approved by the 
MOA. With the batch approval, we may distribute the approved batch of vaccines to the market. 

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. 

  
  
  
  
  
  
  
  
  
  
 
*  Dalian Jingang Group Co., Ltd. owns the remaining 45% equity interest in Sinovac Dalian. 

**SinoBioway Group Co., Ltd., an affiliate of Peking University, owns the remaining 26.91% equity 
interest in Sinovac Beijing. 

***The former name is Beijing Sinovac Biological Technology Co., Ltd. 

C.            Property, Plants and Equipment 

We are headquartered in the Peking University Biological Industry Park 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  

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Table of Contents 

for Healive and Bilive, where the production equipment for hepatitis vaccines is located. We own the 
above-described 48,900-square-foot facility in Beijing. In August 2004, we signed two 20-year leases 
with 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. In June 2007, we signed another 20-year 
lease with SinoBioway, in order to expand Sinovac Beijing’s production facilities in Beijing, pursuant 
to which we leased one building of approximately 37,000 square feet, located at Peking University 
Biological Park. Part of our administrative offices and filling and packaging facilities are located in this 
building. In September, 2010, we entered an agreement with SinoBioway, under which we lease a 
space of 6,778 square feet. The lease term is five years and we used it for our research and 
development function. 

We have two production lines and one filling and packaging line located in the Peking University 

Biological Park. Our production line to manufacture our hepatitis vaccines, Healive and Bilive, 
interchangeably has an aggregate combined production capacity of approximately 10 million doses 
annually. Our production line to manufacture our flu vaccines, Anflu, Panflu and Panflu.1, 
interchangeably has an annual production capacity of approximately 8 million doses of Anflu, or the 
equivalent of 20 million doses of Panflu or 20 million doses of Panflu.1. Our filling and packaging line 
is used for all products we manufacture with an annual capacity of 20 million doses. 

We conduct research and development and manufacturing of animal vaccines in a 40,000-square-
foot facility in Tangshan, Hebei province. In Tangshan, we obtained a state-owned land use certificate 
of a parcel of granted land with an area of approximately 214,200 square feet. We have obtained GMP 
license and production license for our animal rabies vaccine. . 

In February 2010, we entered into an agreement to acquire buildings, land use rights and utility 
facilities in Changping District, Beijing for a total consideration of approximately RMB123.6 million. 
We have paid the initial payment of RMB90.1 million and will pay the balance of the purchase price in 
two installments before December 31, 2012. Under this agreement, we acquired five existing buildings 
with a total built-out area of 32,322.66 square meters (approximately 347,900 square feet) on 29,021.61 
square meters (approximately 312,400 square feet) of land, located in Changping District, Beijing. The 
site was previously used to manufacture medicinal products. We are constructing a new filling and 
packaging line and a production line for EV71 vaccine, based on the new China GMP standard, and 
other supporting infrastructures. We completed construction of the cold storage facility, which was put 
into use by year-end. The construction of a cold warehouse was completed and the construction for a 
new filing and packaging line in compliance with new China GMP standard and an EV71 vaccine 
production plant is in progress.  We are financing the acquisition and construction of this site through 
short-term and long-term borrowings from commercial banks in China. 

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 will focus on the research, development, 
manufacturing and commercialization of vaccines, such as rabies, 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 95,685.60 square meters (approximately 
1,030,000 square feet) of land, located at DD Port, Economic and Technical Development Zone, Dalian 
City, Liaoning province. Currently, Sinovac Dalian is waiting for the GMP certification notice from 
SFDA for its mumps vaccine. 

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 that protect against infectious diseases. 
We have successfully developed a portfolio of market leading products, consisting of vaccines against 
the hepatitis A, hepatitis B and influenza viruses. 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 in China for the production of Bilive, a 
combined hepatitis A and B vaccine, and Anflu, a split viron influenza vaccine. In April 2008, we 
received regulatory approval in China for the production in China of our whole viron pandemic H5N1 
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). Our 
pipeline consists of various vaccine candidates  

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in the pre-clinical and clinical development phases in China. In 2011, we launched a clinical study on a 
vaccine for EV71 (hand, foot and mouth disease). And in 2011, we completed Phase I and Phase II 
clinical studies for the EV71 vaccine and results were announced that the vaccine candidate has good 
safety profile and good immunogenicity, which is ready to enter into Phase III trial. We also filed an 
application to commence the human clinical trials for our 13-valent pneumococcal conjugate vaccine 
and Rubella vaccine to the SFDA. In December 2011, Sinovac Dalian, an operating subsidiary of the 
Company obtained the production license from the SFDA for its mumps vaccine products. Sinovac 
Dalian, applied for GMP certification of its mumps vaccine production plant with the SFDA in 
March 2012 and is currently waiting for notification of the inspection date from the SFDA. Our product 
pipeline also includes human vaccines for rabies, meningitis, and varicella that have completed or are 
in pre-clinical development. In 2011, we also received the approval from The Ministry of Agriculture 
for the animal rabies vaccine. And the vaccine was launched to the market by the end of 2011. 

In May 2002, we obtained the final PRC regulatory approval for the production of Healive. We sold 

approximately 5.8 million, 2.6 million and 2.7 million doses of Healive in 2009, 2010 and 2011, 
respectively. In June 2005, we obtained the final PRC regulatory approval for the production of Bilive, 
and began selling this product in July 2005. We sold approximately 946,000, 684,000, and 1.8 million 
doses of Bilive in 2009, 2010 and 2011, respectively. In October 2005, we received the final PRC 
regulatory approval for the production of our Anflu vaccine against influenza. We sold approximately 
5.1 million, 2.5 million and 2.2 million doses of Anflu in 2009, 2010 and 2011, respectively. In 
April 2008, we received the government approval for production of our Panflu, a whole viron vaccine 
against the H5N1 strain of pandemic influenza virus. We have received a production assignment from 
the PRC government to begin production of Panflu. We received a new order to replace the previously 
ordered products that were granted to us in October 2010 and in June 2011. We completed the second 
production order as of December 31, 2011. In September 2009, we were granted a license for the 
production of Panflu.1 by the SFDA. We started to sell Panflu in August 2009 and recognized revenue 
from the sale of approximately 20,000, 730,000 and 2.3 million doses of Panflu in 2009, 2010 and 
2011, respectively. We started to sell Panflu.1 in September 2009 and generated revenue of $29.7 
million, $7.2 million and $14.0 million in 2009, 2010 and 2011, respectively. Sales of Panflu and 
Panflu.1 represented 13.7% and 24.6%, respectively, of total revenue in 2011, compared with 7.2% and 
21.5%, respectively, in 2010. Panflu and Panflu.1 were all sold to the PRC government. Our sales of 
Panflu and Panflu.1 were dependent on government purchases. Loss of such government purchase 
would have a material adverse effect on our total sales. 

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 to Sinovac 
Beijing. In 2002, the NIFDC, Tangshan Yian and Sinovac Beijing agreed that Sinovac Beijing owns 
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 SFDA 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 $18,116. Beijing Keding is owned by Dr. Weidong Yin and three other senior officers of 
Sinovac Beijing. We received the production license for Bilive from the SFDA 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 the 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 an agreement with the National Institute for Biological Standards and Controls, or 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. In April 2008 Sinovac Beijing received a production license for 
H5N1 from the Chinese government and started to produce H5N1 vaccines for the government 
stockpiling program in June 2008. 

In 2011, the Company licensed from MedImmune, LLC certain rights to use patented reverse 
genetics technology pertaining to virus strain production for vaccines, including the H5N1 influenza 
virus strain. The Company has agreed to pay an upfront license fee, pay milestone payments up to an 
aggregate of $6.5 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 of net sales of the 
licensed products in China (including Hong Kong and Macau). As of December 31, 2011, an upfront 
license fee was included in the account payable and accrued liabilities, no milestone payments have 
been paid or are payable because the cumulative net sales target has not been achieved. 

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Amortization expense for these proprietary rights was $397,878, $546,623 and $268,345 in 2009, 

2010 and 2011, respectively. 

Research and Development Programs 

Due to the risks inherent in the clinical trial process and the early stage of development of our 
products, we did not track our internal research and development costs for each of our research and 
development programs. We use our research and development resources, including employees and our 
technology, across multiple product development programs. As a result, we cannot state precisely the 
costs incurred for each of our research and development programs or our clinical and pre-clinical 
product candidates. However, the table below presents our best estimate of our total research and 
development costs allocable to our leading research and development programs for the periods 
indicated. We have allocated direct and indirect costs to each program based on certain assumptions 
and our review of the status of each program, payroll related expenses and other overhead costs based 
on estimated usage by each program 

Research and development 

programs 

Panflu  
Panflu.1 
Rabies for animal 
EV71 vaccine 
Pneumococcal conjugate vaccine 
Pneumococcal Polysaccharides 

vaccine 
Rotavirus 
Varicella 
Rabies for humans 
Mumps Vaccine 
Mumps Vaccine- pilot production 
Universal pandemic influenza 
Others 
Total 

2009 

Year ended December 31, 
2010 
(in thousands of dollars) 

2011 

287   
977   
263   
404   
334   

335   
—   
—   
365   
—   
—   
900   
792   
4,657   

87   
—   
508   
2,756   
580   

581   
118   
124   
903   
1,019   
—   
796   
1,166   
8,638   

—   
—   
1,027   
1,945   
435   

435   
216   
324   
1,035   
—   
1,480   
109   
2,000   
9,007   

R&D Project Status 

Projects 

EV 71 Vaccine 

Cost 
Incurred 
(in 
thousands) 
5,574 
$ 

   Current Status    

In the Phase 
III clinical 
trial 

Estimated 
Completion 
Date 

2014 

Estimated 
Completion 
Cost 
(in 
thousands)    
$  12,000 

Funding 

Sinovac 
Beijing 

Pneumococcal 

$ 

1,350 

IND Filed 

2016 

$  3,000 

Sinovac 

Polysaccharides 
Vaccine (23 and 
24 valent) 

Pneumococcal 

$ 

1,350 

IND Filed 

2016 

$  6,000 

Sinovac 

Conjugate Vaccine 
(13-valent) 

Mumps 

$ 

1,019 

GMP 
Inspection    

December 2012 

$  1,800 

Sinovac 
Dalian 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
     
    
  
  
  
     
    
  
  
  
  
  
  
  
  
  
     
    
  
  
  
     
    
  
  
  
  
  
  
  
  
  
     
    
  
  
  
     
    
  
  
  
  
  
  
  
  
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Significant additional expenditures are generally required to complete clinical trials, setting up 
designated production plant, apply for regulatory approvals, improving the production process, and 
bring product candidates to market. The eventual total cost of each clinical trial is dependent on a 
number of uncertain variables such as trial design, the length of trials, the number of clinical sites and 
the number of subjects. The process of obtaining and maintaining regulatory approvals for new 
therapeutic products is lengthy, expensive and uncertain. We anticipate that we will 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 identified the EV71 vaccine which fights hand foot and mouth diseases as our most important 
pipeline product. As of December 31, 2011, we have completed Phase II clinical trial and commenced 
Phase III clinical trial in early 2012. The Phase III clinical trial commenced in January 2012 and is 
expected to be completed by July 2013, with about 10,000 volunteers of children from 6 to 35 months. 
The expenses of Phase III clinical trial is estimated approximately US$10 million. We have 
commenced the construction of production plant for EV 71 vaccine with total estimated capital 
expenditure of approximately US$8 million. We expect to complete the construction by June 2012, 
followed by validation. 

The risks associated with the EV71 clinical trials are the uncertainties of the pandemic situation 
which could affect the evaluation on the efficacy of the vaccine during the phase III clinical studies. 

We expect to obtain the new drug certificate for the EV71 vaccine and launch to the market in the 

year of 2014. However, the risks and uncertainties of this pipeline product are identified by the 
following: 

(1)          The technology used to produce the vaccine developed in the research and development stage 
will not meet the mass production requirements, therefore affecting the quality of the vaccine.  

(2)          The quality standard of the vaccine might be changed by the regulator.  

(3)          We might fail the clinical trials.  

(4)          The market demand for the vaccine will be diminished due to the reduced threat of hand, foot 

and mouth diseases.  

Government Grants 

The PRC government has provided grants to us which are accounted for as income in the period in 
which the research and development expenses are recorded and the conditions imposed by government 
authorities are fulfilled. We received government research and development funding in the amount of 
$1.3 million, $370,000 and $ 893,000, for 2009, 2010 and 2011, respectively. In 2011, we also received 
$700,000 of interest subsidy related to our Changping facility construction project which was offset 
against interest expenses incurred on borrowing to finance the project. 

Research and development expenses qualified for government grants were $251,436, $43,278 and 

$686,258 in 2009, 2010 and 2011, respectively. In 2011, we also received and recognized in our 
income statement $331,153 of general incentives and $595,883 of interest subsidy from the 
government, compared to $1,398,289 and $147,521 in 2010. 

Deferred government grants the unamortized portion of the amount received by us in 2007 for 
construction of a pandemic influenza vaccine production facility, was $2.3 million as of December 31, 
2011 as compared with $2.5 million as of December 31, 2010. The condition for the grant is that we 
make the entire facility available for the manufacturing of pandemic influenza vaccines whenever 
requested by the Chinese government. We recognized government grant relating to the production 
facility of $197,347, $265,547 and $278,067 as income in 2009, 2010 and 2011, respectively. 

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. 

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Revenue Recognition 

Sales revenue is recognized when persuasive evidence of an arrangement exists, the price is fixed and 
determinable, delivery has occurred and there is a reasonable assurance of collection of the sales 
proceeds. We generally obtain purchase authorizations from our customers for a specified amount of 
products at a specified price and consider delivery to have occurred when the customer takes title of the 
products. We provides our customers with a limited right of return. The product return provision for 
seasonal influenza vaccine at year end is estimated based on actual sales returns because the returned 
products are known by the end of the flu season which is generally end of March. As of December 31, 
2011, reserves for seasonal influenza vaccine returns are approximately $1 million (December 31, 2010 
- $3.2 million). The product return provisions for inactivated hepatitis A vaccine and combined 
inactivated hepatitis A&B vaccine are estimated based on historical return and exchange levels, 
external data with respect to inventory levels as well as the remaining shelf lives of the products in the 
distribution channel. As of December 31, 2011, reserves for inactivated hepatitis A vaccine and 
combined inactivated hepatitis A&B vaccine returns are $1.7 million (December 31, 2010 - $2.6 
million). Sales return provision on inactivated hepatitis A and combined inactivated hepatitis A&B 
represents 8.3% and 16% of private pay market sales in 2011 and 2010, respectively. For H1N1 and 
H5N1 vaccines, customers do not have a right of return. 

Deferred revenue is generally relating to government stockpiling programs and advances received 
from customers. For government stockpiling programs, we generally obtain purchase authorizations 
from the government for a specified amount of products at a specified price and revenue is recognized 
when the government takes delivery of the products. If the products expire prior to delivery, revenue 
related to the portion of deferred revenue relating to these expired products is recognized once cash has 
been received and the products have expired and passed government inspection. 

Shipping and handling fees billed to customers are included in sales. Costs related to shipping and 
handlings are part of selling expenses in the consolidated statements of income. In 2011, $1.2 million 
related to shipping and handling costs was included in selling expenses in the accompanying 
consolidated statements of income (loss), compared to $1.1 million in 2010 and $1.4 million in 2009. 

Allowance for Doubtful Accounts 

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, 2011 was $3.9 million, 
compared to $4.2 million as of December 31, 2010. 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. 

Inventory Provision 

We write off all the unsold seasonal influenza vaccines at the end of the fiscal year. In addition, we 
estimate an inventory provision for the existing products in the warehouse after considering the sales 
forecasts, the conditions of the raw material inventory, as well as the expiring date of Healive and 

  
  
  
  
  
  
  
  
  
Bilive inventory. The inventory provision in 2009, 2010 and 2011 was $593,451, $6.8 million and $4.0 
million, respectively. The change of inventory provision is based on a review of our inventory 
expiration dates at year-end and estimated sales of 2012. 

Amortization of Intangible Assets 

We have amortized the value of intangible assets, being licenses and permits, over an estimated 10-
year or 20-year useful life. The estimated life of intangible assets is inevitably subjective, however, at 
least once per year, we evaluate impairment and reevaluate the market opportunities for the intangible 
assets’ products and determine whether the remaining useful life estimate is still reasonable. In 2010 
and 2011, we found no impairment of intangible assets. 

The following table shows the effect of a change in the estimated useful life of licenses and permits 

of 10% for 2011: 

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Table of Contents 

Useful life 
Amortization expense 
Loss for the year 
Loss per share  

Changes from reported  
amount based on 
hypothetical 10% Decrease  
in Useful Life 
9/18 years 

   As Reported    
   10/20 years    

157,117   $ 
733,468   $ 
0.01    $ 

268,345   $ 
844,696   $ 
0.02    $ 

Changes from reported  
amount based on 
hypothetical 10% Increase  
in Useful Life 
11/22 years 

467,698   
1,044,048   
0.02   

  $ 
  $ 
   $ 

Given the nature of estimating the useful life of long-term assets, it is not yet possible to provide a 
meaningful assessment of historical accuracy of the useful life estimates employed. It is very likely that 
the useful life of the licenses and permits will be different from the estimate employed, and the changes 
could be material. Changes in the estimated life of the licenses and permits will not have a bearing on 
the total amount charged to operations over the life of the assets, but could change the results of 
operations and financial position in any given period. 

Leases 

In 2004, we entered into two operating lease agreements with SinoBioway with respect to Sinovac 

Beijing’s production plant and laboratory in Beijing, China with annual lease payments totaling 
approximately RMB1.4 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 increased from 
RMB 452,600 to approximately RMB1.4 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 
approximately RMB 2.0 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 Biological’s business on research and development for an annual lease 
payment of RMB 816,202. The lease commenced on September 30, 2010 and has a term of five years. 
The lease payment included in current and long-term prepaid expenses and deposits was $543,965 as of 
December 31, 2011, compared to $653,888 as of December 31, 2010. 

Income tax valuation allowance 

In 2011, we recorded a $0.4 million long-term deferred income tax asset based on the difference in 
timing of certain deductions for income tax and accounting purposes. Our ability to ultimately derive a 
benefit from the deferred tax asset depends on the existence of sufficient taxable income of the 
appropriate character within the carry forward period available under the tax law. We have reviewed 
available information, both positive and negative, and have concluded that a full valuation allowance 
for current deferred income tax assets of $2.8 million established in 2011 is required due to unlikely 
utilization of it in the following year. However, realization is more likely than not for the long term 
deferred income tax assets. If our evaluation of the circumstances is not correct, we will have to record 
a charge to operations with respect to any over-accrual of the benefit. 

Key Performance Indicator 

Since the vaccine market in China is a fragment market in China, we did not use any industry trend 

or indicator as our key performance indicator. Alternatively, we develop internal sales and revenue 
target as our key performance indicator. As we revised our performance indicator, we communicated 
the changes through our press releases throughout the year. 

Recently Adopted Accounting Standards 

Effective January 1, 2011, the Company adopted Accounting Standard Update (―ASU‖) 2009-13, 

which amends ASC 605 Revenue Recognitions, Multiple-Deliverable Revenue Arrangements. The 
amendments require an entity to allocate arrangement consideration at the inception of the arrangement 
to all of its deliverables based on relative selling prices. The guidance eliminates the use of the residual 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
method of allocation and expands the ongoing disclosure requirements. The adoption of this guidance 
did not have a material effect on the Company’s consolidated financial statements. 

Effective January 1, 2011, the Company adopted ASU 2010-13, which amends ASC 718 

Compensation — Stock Compensation, Effect of Denominating the Exercise Price of a Share-Based 
Payment Award in the Currency of the Market in Which the Underlying Equity Security Trades. The 
amendments clarify that a share-based payment award with an exercise price denominated in the 
currency of a market in which a substantial portion of the entity’s equity securities trades shall not be 
considered to contain a market, performance, or service condition. Therefore, such an award is not to 
be classified as a liability if it otherwise qualifies as equity classification. The amendments are 
effective for fiscal year beginning on or after December 15, 2010, with early adoption permitted. The 
adoption of this guidance did not have a material effect on the Company’s consolidated financial 
statements. 

Effective January 1, 2011, the Company adopted ASU 2010-17, which amends ASC 605, Revenue 

Recognition, Milestone Method of Revenue Recognition. The amendments provide guidance on 
defining a milestone under ASC 605 and determining when it may  

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be appropriate to apply the milestone method of revenue recognition for research or development 
transactions. The amendments are effective for fiscal year beginning on or after June 15, 2010, with 
early adoption permitted. The adoption of this guidance did not have a material effect on the 
Company’s consolidated financial statements. 

Effective January 1, 2011, the Company adopted ASU 2010-29, which amends ASC 805, Business 
Combinations, and Disclosure of Supplementary Pro Forma Information for Business Combinations. 
The ASU clarifies that if comparative financial statements are presented, the pro forma disclosures for 
both periods presented should be reported as if the acquisition had occurred as of the beginning of the 
comparable prior annual reporting period only and not as if it had occurred at the beginning of the 
current annual reporting period. The ASU also expands the supplemental pro forma disclosure 
requirements to include a description of the nature and amount of any material non-recurring 
adjustments that are directly attributable to the business combination. The guidance in the ASU is 
effective for business combinations for which the acquisition date is on or after the beginning of the 
first annual reporting period beginning on or after December 15, 2010, and should be applied 
prospectively. The adoption of this guidance did not have a material effect on the Company’s 
consolidated financial statements. 

Recently Issued Accounting Pronouncements not adopted as of December 31, 2011 

In May 2011, the FASB issued ASU 2011-4, which amends the fair value measurement and 

disclosure guidance in ASC 820, Fair Value Measurement, to converge US GAAP and IFRS 
requirements for measuring amounts at fair value as well as disclosures about these measurements. The 
amendments are effective for fiscal year beginning on or after December 15, 2011. The Company is 
currently evaluating the effect that the adoption of this guidance will have on its consolidated financial 
statements. 

In June 2011, the FASB issued ASU 2011-5, which amends the presentation guidance in ASC 220, 
Comprehensive Income, and will result in more converged guidance on how comprehensive income is 
presented under US GAAP and IFRS, although some differences remain. The new US GAAP guidance 
gives companies two choices of how to present items of net income, items of other comprehensive 
income or separate consecutive statements. Companies will no longer be allowed to present OCI in the 
statement of stockholders’ equity. Earnings per share would continue to be based on the net income. 
Although existing guidance related to items that must be presented in other comprehensive income 
(―OCI‖) has not changed, companies will be required to display reclassification adjustments for each 
component of OCI in both net income and OCI. Also companies will need to present the components 
of other comprehensive income in their interim and annual financial statements. The amendments are 
effective for fiscal year beginning on or after December 15, 2011. In December 2011, the FASB issued 
ASU 2011-12, which defers ASU 2011-05 requirement that companies present reclassification 
adjustments for each component of accumulated other comprehensive income (―AOCI‖) in both net 
income and OCI on the face of the financial statements. Companies are still required to present 
reclassifications out of AOCI on the face of the financial statements or disclose those amounts in the 
notes to the financial statements. The ASU also defers the requirement to report reclassification 
adjustments in interim periods. The Company is currently evaluating the effect that the adoption of this 
guidance will have on its consolidated financial statements. 

In December 2011, the FASB issued ASU 2011-11, which amends the disclosure guidance in ASC 
210, Balance Sheet. New disclosures are required to enable users of financial statements to understand 
significant quantitative differences in balance sheets prepared under US GAAP and IFRS related to the 
offsetting of financial instruments. The existing US GAAP guidance allowing balance sheet offsetting, 
including industry-specific guidance, remains unchanged. The amendments are effective for annual 
reporting periods beginning on or after January 1, 2013, and interim periods within those annual 
periods. The amendments should be applied retrospectively for all prior periods presented. The 
adoption of this guidance did not have a material effect on the Company’s consolidated financial 
statements. 

RESULS OF OPERATIONS 

2009 

Year ended December 31, 
2010 
(in thousands, except for percentages) 

2011 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Statement of income (loss) data    
Sales 
Cost of sales(1) 
Gross profit 
Operating expenses: 

   $ 84,197   
20,063   
64,134   

100.0 % $ 33,401   
23.8 %  16,719   
76.2 %  16,682   

100.0 % $ 56,842   
50.1 %  21,127   
49.9 %  35,715   

100.0 % 
37.2 % 
62.8 % 

Selling, general and 

administrative expenses(2) 
Provision for doubtful accounts   
Research and development 

expenses 

Depreciation of property, plant 

and equipment and 
amortization of licenses and 
permits 

Government grants recognized 

in income 

Total operating expenses 
Operating income (loss) 
Interest and financing expenses 
Interest income 
Other income (expenses) 
Loss on disposal and write down 

of equipment 
Income (loss) before income 
taxes and non-controlling 
interest 

Income tax (expenses) recovery 
Consolidated net income (loss) for 

the period 

Less: income (loss) attributable to 

non-controlling interests 
Net income (loss) attributable to 

the stockholders 

18,165   
18   

4,406   

21.6 %  18,886   
1,921   
0.02 % 

56.5 %  22,372   
(167 ) 
5.8 % 

39.4 % 
(0.3 )% 

5.2 % 

8,508   

25.5 % 

9,007   

15.8 % 

693   

0.8 % 

1,411   

4.0 % 

1,437   

2.5 % 

(1,296 ) 
21,986   
42,148   
(534 ) 
143   
(34 ) 

(1.5 )%  (1,924 ) 
26.2 %  28,801   
50.0 %  (12,119 ) 
(0.6 )%  (1,178 ) 
1,133   
0.2 % 
96   
(0.0 )% 

(5.7 )% 
(764 ) 
86.3 %  31,885   
(36.2 )%  3,829   
(385 ) 
(3.5 )% 
1,397   
3.5 % 
280   
0.3 % 

(1.3 )% 
56.1 % 
6.7 % 
(0.7 )% 
2.5 % 
0.5 % 

(169 ) 

(0.2 )%  (1,237 ) 

(3.7 )% 

(455 ) 

(0.8 )% 

41,554   
(11,141 ) 

49.4 %  (13,305 ) 
704   
(13.2 )% 

(39.8 )%  4,667   
(5,067 ) 

2.1 % 

8.2 % 
(8.9 )% 

30,413   

10,455   

36.1 %  (12,601 ) 

(37.7 )% 

(400 ) 

(0.7 )% 

(12.4 )%  (4,094 ) 

(12.3 )% 

445   

0.8 % 

   $ 19,958   

23.7 % $  (8,507 ) 

(25.5 )% $ 

(845 ) 

(1.5 )% 

43 

    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
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(1)          Excludes depreciation of land-use rights and amortization of licenses and permits of $418,867, 

$546,623 and $290,526 for 2009, 2010 and 2011, respectively.  

(2)          Includes stock-based compensation expense of $422,860, $459,90l and $206,301 in 2009, 2010 

and 2011, respectively. 

Sales 

Revenues from sales represent: 1) the invoiced value of goods, net of value added taxes, or VAT, 

sales returns, trade discounts and allowances. See ―ITEM 5. Operating and Financial Review and 
Prospects — A. Operating Results — Taxes and incentives.‖ We recognize revenues at the time when 
our products are delivered, persuasive evidence of an arrangement exists, the price is fixed and final 
and there is reasonable assurance of collection of the sales proceeds; 2) the value of goods produced for 
government stockpiling program. We recognize revenue 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 vaccinees, 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 vaccinees is influenced by the performance, promotion and academic 
research, and pricing of our products. 

We market and sell our vaccine products primarily through various 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 was 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 the CDCs when 
we win the bid. 

Pricing 

To gain market penetration, we price our Healive at levels that we believe offer attractive economic 
returns to CDCs and their end customers, such as hospitals, taking into account the prices of competing 
products in the market. We believe that our Healive and Bilive are competitively priced compared to 
hepatitis vaccines available in China. In the government paid market, we priced our Healive in 
reference to the price guidance set up by the government and adjusted the price from time to time in 
order to win the bid. We priced Anflu competitively to offer attractive economic returns to CDCs. The 
prices of our products are lower than those of foreign imports. Panflu and Panflu.1 pricing were 
determined on a cost plus basis in consultation with the government. 

The provincial governments in China may adjust the fee rates from time to time. If they reduce the 

fee rates, some hospitals and distributors may be discouraged from purchasing our products, which 
would reduce our sales. In that event, we may need to decrease the price of our products to provide our 
customers acceptable returns on their purchases. We cannot assure you that our  

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business, financial condition and results of operations will not be adversely affected by any reduction 
in fees for the vaccines in the future. 

Cost of sales 

Our cost of sales primarily consists of material and component costs. Depreciation of property, plant 
and equipment attributable to manufacturing activities is capitalized as part of inventory, and expensed 
as cost of sales when product is sold. Cost of goods sold in 2009, 2010 and 2011 amounted to $20.1 
million, $16.7 million, and $21.1 million, respectively. We produce our own products and conduct the 
final product packaging in-house. 

As we source a significant portion of our components and raw materials in China, we currently have 
a relatively low cost base compared to vaccines manufacturers in more developed countries. We expect 
the costs of components and raw materials in China will increase in the future as a result of further 
economic development and inflation in China. In addition, our focus on new generations and 
applications of our products may require higher cost components and raw materials. We plan to offset 
increases in our cost of raw materials and components through more efficient product designs and 
product assembly enhancements as well as through savings due to economies of scale. 

Selling, general and administrative expense 

Selling 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. 
Going forward, we expect to increase our expenditures on selling and marketing, both on an absolute 
basis and as a percentage of revenue, to promote our products, especially Bilive and Anflu. We expect 
the selling and marketing expenses to promote Bilive will increase in 2012 as we will increase the 
promotion activities on this product in the private market. 

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, stock-based compensation, professional fees 
for accounting and legal services and the income taxes we assumed for our employees as a result of 
their exercising the stock options. 

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 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;  

                  costs of materials used in research and development; and  

              depreciation of facilities and equipment used to develop our products.  

We expense both internal and external research and development costs as incurred, other than those 
capital expenditures that have alternative future uses, such as the build-out of our plant. 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 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Under the current laws of Antigua, we are not subject to tax on our income or capital gains. In 

addition, no Antigua withholding tax will be imposed on payments of dividends by us to our 
shareholders. Sinovac was incorporated in Antigua and Barbuda and has historically been involved in a 
number of business combinations and significant financing. As a result, Sinovac could be involved in 
various investigations, claims and tax reviews that arise in the ordinary course of business activities. 

Substantially all of our sales are conducted in the PRC. Under PRC law, Sinovac Beijing and 

Tangshan Yian are both subject to EIT and VAT. Sinovac Beijing is classified as a HNTE. As such, it 
was subject to a reduced EIT rate of 15% in 2009 and 2010 compared to a statutory rate of 25% for 
most companies in China. In 2011, Sinovac Beijing’s HNTE status was reconfirmed and it will remain 
subject to an EIT rate of 15% until 2013. For the three fiscal years ended December 31, 2009, 2010 and 
2011, Sinovac Beijing incurred income tax expenses of $9.8 million, $1.0 million and $1.5 million, 
respectively. VAT is charged based on the selling price of our products at a rate of 6%. Tangshan Yian 
was subject to an EIT rate of 25% in 2009, 2010 and 2011. The statutory rate of 25% applies to 
Sinovac R&D and Sinovac Dalian until they obtain the HNTE certificates. 

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 are subject to withholding tax 
at a rate of 5%, or otherwise 10%. Whether the favorable rate will be applicable to dividends received 
by Sinovac Hong Kong from its PRC subsidiaries is subject to the approval  

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of the PRC tax authorities because it is unclear whether Sinovac Hong Kong is considered as the 
beneficial owner of the dividends in substance. The PRC tax authorities have discretion to determine 
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. As 
of the date of this annual report, Sinovac Hong Kong has not obtained approval from the PRC tax 
authorities to apply a 5% withholding tax rate on the dividends received from Sinovac Beijing in 2010 
and 2011. As such, we applied a 10% withholding tax rate on such dividends declared. As of 
December 31, 2011, our income taxes payable included withholding income taxes of $1.7 million 
calculated based on $16.9 million distributed earnings of Sinovac Beijing multiplied by a 10% 
withholding tax rate. The deferred income taxes liability as of December 31, 2011 was $nil compared 
to $1.0 million based on 5% withholding income tax as of December 31, 2010. 

Year ended December 31, 2011 Compared to Year Ended December 31, 2010 

Sales.  Sales increased by 70.2% to $56.8 million from $33.4 million in 2010. The revenue 

generated from sales of hepatitis vaccines increased by 66.3%, In 2011, we adjusted our sales strategies 
to gear to the overall China hepatitis vaccines market where the hepatitis A market gradually shifted 
from private market to public market, there was no public market for combined hepatitis A and B 
vaccines, and no competitive product with our Blive in Chinese private market exists. As a result, the 
sales of Bilive increased by 248.9% compared to the sales of 2010 while sales of Healive to public 
market increased by 89.5% compared to the sales in 2010. However, the significant increase in Bilive 
in the private market and Healive in the public market were offset by a 15.3% decreased sales from 
Healive in the private market in 2011. The increase in revenue was also attributed to the recognition of 
$21.8 million of pandemic influenza vaccine sales on prior year orders as revenue. Sales of H1N1 and 
H5N1 vaccines represented 24.6% and 13.7%, respectively, of total revenue in 2011, as compared to 
21.5% and 7.2% of total revenues in 2010. The H1N1 and H5N1 vaccines were ultimately sold to 
Chinese government. The table below sets forth a breakdown of our sales by product: 

Sales 
Hepatitis vaccines 
Influenza vaccines  
Total  

Year ended December 31, 
2010 
2011 

   $ 26,939,386    $ 16,200,844   
17,200,582   
   $ 56,841,892    $ 33,401,426   

29,902,506   

Cost of Sales.  Compared with a 70.2% increase in total revenue, cost of sales increased by 26.4% to 
$21.1 million in 2011 from $16.7 million in 2010. Cost of sales improved in 2011 mainly as a result of 
1) inventory write-offs and provisions decreased from $6.8 million in 2010 to $4.0 million as a result of 
improved coordination of production planning, 2) the cost of sales of 431,000 doses of Bilive was 
recorded in prior year as inventory provision, 3) decrease in sales return provision of hepatitis vaccines, 
which was primarily determined based on the inventory levels in the distribution channels and their 
remaining shelf lives, which led to a less increase of cost of sales in proportion of sales increase. 
However, a higher write-off of idle capacity was recorded in cost of sales because of the enhanced 
control of production volume. In 2011, hepatitis and the influenza production facilities had idle 
capacity of 48% and 30%, respectively, compared to the idle capacity of 11% and nil in 2010. 

Gross Profit.  Gross profit increased by 114.1% to $35.7 million in 2011 from $16.7 million in 2010. 
Gross profit margin was 63.0% and 50.0% for 2011 and 2010, respectively. The increase of gross profit 
margin in 2011 was mainly due to the decrease of cost of sales as a result of less inventory provision 
and wrote-offs, less sales return provision and a recovery of prior year inventory provision for Bilive in 
2011. In addition, the overall gross profit margin improved because the product mix sold in 2011 
consisted of more H1N1vaccines which had higher gross profit margin. After deducting the 
depreciation of land use rights and amortization of licenses and permits from our gross profit, our gross 
profit margin was 62.5% and 48.3% for 2011 and 2010, respectively. The inventory write offs and 
provision, included in the cost of sales, reduced the gross profit margin by 6.3% and 20.4% for 2011 
and 2010, respectively. 

  
  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
  
  
Selling, General and Administrative Expenses.  Selling, general and administrative expenses, or 

SG&A expenses, include non-production related wages and salaries, stock-based compensation, 
consulting fees, travel, accomodation, advertising, public company costs and professional fees. Our 
SG&A expenses increased by 18.5% to $22.4 million in 2011 from $18.9 million in 2010. Our selling 
expenses increased by 41.9% to $12.3 million in 2011 from $8.7 million in 2010. In 2011, we have 
realigned our sales and marketing efforts to better address the changing Chinese vaccine market. 
Selling expenses increased as a result of increased sales promotional expenses for selling Bilive in the 
private market, expanded sales team to cover a wider geographic area, and increased compensation to 
sales professionals to improve employee retention. General and administrative expenses remained at 
about the same level as in 2010. 

We recorded stock-based compensation of $206,301 in 2011 compared to $459,901 in 2010. In 
December 2011, we granted 767,000 stock options to the employees at an exercise price of $2.37 per 
share. The weighted average fair value of the stock options granted in 2011 was $1.35 per share. The 
expected term was estimated to be 3,24 years and the expected volatility was estimated to be 86.91%. 

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The options granted vest in installments from December 26, 2012 to 2014, and will expire on 
December 25, 2017. As a result, as of December 31, 2011, we had unrecognized compensation costs of 
$1,043,765. This unearned component will be recognized over a period of 39 months. 

Research and Development Expenses.  Research and development expenses increased by 5.9% to 

$9.0 million from $8.5 million in 2010, primarily representing amounts spent on researching and 
developing vaccines for hand foot and mouth disease, pneumococcal conjugate vaccine, universal 
pandemic influenza, mumps and rabies in animals, net of government grants to fund these activities. 
The PRC government research and development grants are offset against the qualified research and 
development expenses incurred in the period the conditions imposed by government authorities are 
fulfilled. In 2011, we received government research grants of $893,000 mainly related to EV71 R&D, 
wherein $468,000 was offset against the qualified EV 71 clinical trial expenses and the remaining 
$424,000 was deferred to offset future qualified research and development expenses. In 2010 we 
received government research grants of $370,000. In 2011, we offset government research grant of 
$686,000 against qualified research and development expenses compared to $43,000 in 2010. 

Interest and Financing Expenses.  Interest and financing expenses decreased by 67.4% to $385,000 

in 2011 from $1.2 million in 2010. In 2011, we received $596,000 in interest subsidy from the 
government as compared to $148,000 in 2010, which was recorded as a reduction to interest and 
financing expenses. In addition, we received $700,000 (2010 - $nil) interest subsidy related to the 
Changping facility construction project which was recorded to offset the interest capitalized in 2011. 

Income Taxes Expenses. We had income tax expense of $5.1 million in 2011, compared to an 
income tax recovery of $704,000 in 2010. The significant increase in the income tax expense was 
attributed to $2.8 million deferred income tax expenses resulting from the reversal of the temporary 
differences and a derecognition of the current portion of deferred income tax assets established in 2011. 
As of December 31, 2011, included in income tax payable $1.7 million was related to withholding tax 
on distributed earnings of $16.9 million from Sinovac Beijing, of which $725,000 was recorded in 
2011 income tax expense. No earning was distributed from Tangshan Yian, Sinovac Dalian and 
Sinovac R&D in 2010 and 2011 as these subsidiaries were not profitable. 

Net Loss.  Net loss decreased to a net loss of $845,000 in 2011 from a net loss of $8.5 million in 

2010. 

Year ended December 31, 2010 Compared to Year Ended December 31, 2009 

Sales.  Sales decreased to $33.4 million in 2010 from $84.2 million in 2009, excluding one-time 
sales to the Ministry of Health and H1N1 vaccine sales, adjusted sales for the full year 2010 and 2009 
were $26.2 million and $42.4 million respectively which yielded a 38.2% decline in full year sales 
when comparing 2010 to 2009. The lower sales in 2010 were primarily attributable to adverse impact 
of the negative external factors on the domestic vaccine market and the absence of government 
purchases of hepatitis A vaccine for disease control in the flood region and lower H1N1 vaccine sales. 
Our sales breakdown by product was as follows: 

Sales 
Hepatitis vaccines 
Influenza vaccines  
Total  

Year ended December 31, 
2009 
2010 

   $ 16,200,844    $ 39,242,901   
44,954,281   
   $ 33,401,426    $ 84,197,182   

17,200,582   

Sales of H1N1 vaccine represented 21.5% of total sales for the year ended December 31, 2010, as 
compared to 35.3% in 2009. The H1N1 vaccine was sold to the Chinese government in accordance 
with government purchase program. 

Revenue decrease in 2010 was mainly attributed to the following factors: 

(1) Unfavorable business environment. 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
  
  
(2) Hepatitis vaccine market shifted faster than we expected from private market to the public 

market. Our hepatitis products are not currently preferred by a majority of provincial CDCs due to the 
fact that our hepatitis A product needs two doses to complete the immunization process compared to 
one dose of live attenuated hepatitis products. 

We did not make any one time sales to government in 2010 compared to $12.1 million of Healive 
sold to Chinese Ministry of Health to help with the disease control and prevention in flooding areas in 
2009. 

The seasonal flu vaccine market competition was fiercer than ever. The total released seasonal flu 

vaccines by NIFDC increased to 48.1 million doses supplied by 13 manufactures compared to 32.6 
million doses from 11 manufactures in 2009, but the demand of seasonal flu did not match the 
increased supply. 

We sold approximately 2.28 million doses Panflu.1 in 2010 compared to 10.08 million doses in 

2009. 

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Cost of Sales.  Compared to a decrease of 152% in total revenue, cost of sales decreased by 16.7% 
to $16.7 million in 2010 from $20.1 million in 2009.  The Company recorded a $6.8 million inventory 
write down in cost of sales in 2010 to reflect primarily the expiration of 2.95 million doses of the 
influenza vaccine that were not sold in 2010 and inventory provision for total 1.1 million doses of 
hepatitis A and hepatitis A&B vaccines.  In addition, the sales return provision for hepatitis vaccines as 
a percentage of private market sales was 16% compared to 4% in prior year, which also contribute to 
higher cost of sales as we did not reverse the cost of reserved sales. 

Gross Profit.  Gross profit decreased by 74.0% to $16.7 million in 2010 from $64.1 million in 
2009. Gross profit margin was 76.2% and 50.0% for 2009 and 2010, respectively. Lower gross profit 
margin in 2010 is mainly because of $6.8 million in inventory write offs. After deducting depreciation 
of land use rights and amortization of licenses and permits from our gross profit, our gross profit 
margin was at 75.7% and 48.3%for2009 and 2010, respectively. The inventory write down, including 
in the cost of sales, reduced the gross profit margin by 0.7% and 20.4% for 2009 and 2010, respectively. 

Selling, General and Administrative Expenses.  Selling, general and administrative expenses, or 

SG&A expenses, include non-production related wages and salaries, stock-based compensation, 
consulting fees, travel, occupancy, advertising, public company costs and professional fees. Our SG&A 
expenses increased by 3.2% to $18.9 million in 2010 from $18.2 million in 2009. Our selling expenses 
decreased by 12.1% to $8.7 million in 2010 from $9.9 million in 2009. The decrease in selling 
expenses was mainly due to decreased sales in the private market. Our general and administrative 
expenses increased by 45.8% to $12.1 million in 2010 from $8.3 million in 2009 in line with our 
business expansion in Sinovac Beijing and Sinovac Dalian. 

We recorded stock-based compensation of $459,901 in 2010 compared to $422,860 in 2009. We did 

not grant any stock options in 2010. In 2009, we granted 1,708,500 stock options to the directors, 
officers and certain employees at an exercise price of $1.60 per share. The stock options granted to our 
directors, officers and employees in 2009 had a weighted average estimated fair value of $1.2 million 
and $0.70 per share, respectively. We granted options with different vesting schedules. As a result, as 
of December 31, 2010, we had unrecognized compensation costs of $343,027, which is recognized 
over a period of 15 months. 

Research and Development Expenses.  Research and development expenses increased by 96.1% to 

$8.6 million from $4.4 million in 2009, primarily representing amounts spent in researching and 
developing vaccines for hand foot and mouth disease, pneumococcal conjugate vaccine, universal 
pandemic influenza, mumps and rabies in animals, net of government grants to fund these activities. 
The PRC government grants are brought into income in the period in which the research and 
development expenses are recorded and the conditions imposed by government authorities are fulfilled. 
In 2010 and 2009, we received government research grants of $370,000 and $1.3 million, respectively. 
In 2010, we recognized government research grant income of $43,000 compared to $251,436 in 2009. 

Interest and Financing Expenses.  Interest and financing expenses decreased by 120.4% to $1.2 

million in 2010 from $534,455 in 2009, mainly resulting from a higher balance of bank loan 
throughout the year. 

Income Taxes Expenses.  We had an income tax recovery of $704,000 in 2010, compared to an 
income tax expense of $9.9 million in 2009. As of December 31, 2010, we had deferred tax liability of 
$1.0 million for undistributed earnings of $20.4 million in Sinovac Beijing. In 2009 and 2010, 
Tangshan Yian had a net loss. Sinovac Dalian and Sinovac R&D also had losses in 2010. 

Net Loss.  Net profit decreased to a net loss of $8.5 million in 2010 from a net income of $20 

million in 2009. 

B.            Liquidity and Capital Resources 

We finance our operations primarily through short-term and long-term borrowings, proceeds from 
our public offering, capital raised in our private placement, cash generated from operations and, to a 
lesser extent, cash from government research grants. We believe that our current cash and cash 

  
  
  
  
  
  
  
  
  
  
equivalents, and anticipated cash flow will be sufficient to meet our anticipated cash needs, including 
our cash needs for working capital and capital expenditure, for the next 12 months. We may, however, 
require additional cash due to changing business conditions or other future developments, including 
any investments or acquisitions we may decide to pursue. If our existing cash is insufficient to meet our 
requirements, we may seek to sell additional equity securities, debt securities or borrow from banks. 

Cash Flows and Working Capital 

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

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Net cash provided by (used in) operating 

activities 

Net cash used in investing activities 
Net cash provided by financing activities 
Net increase in cash and cash equivalents 
Cash and cash equivalents at beginning of 

period 

Cash and cash equivalents at end of period     $ 

2009 

Year ended December 31, 
2010 
(in thousands) 

2011 

   $ 

48,412    $ 
(11,693 ) 
5,293   
42,059   

(14,279 )  $ 
(19,244 ) 
58,194   
26,632   

13,936   
(13,790 ) 
613   
2,701   

32,894   
101,585   
74,953   
74,953    $  101,585    $  104,287   

Operating Activities 

Net cash provided by operating activities was $13.9 million in 2011, compared to $14.3 million cash 

used in operating activities in 2010. Net cash provided by our operating activities in 2011 resulted 
primarily from (1) our net loss of $0.4 million, (2) an increase in inventories of $1.9 million, (3) a 
decrease in deferred revenue of $2.7 million, (4) an increase in prepaid expenses and deposits of 
$531,000. These items were partially offset by (1) an increase in inventory provision of $4.0 million, 
(2) depreciation of property, plant and equipment and amortization of licenses and permits of $4.8 
million, (3) write-offs for equipment and loss on disposal of $455,000, (4) an increase in accounts 
receivable of $5.5 million and (4) an increase in accounts payable and accrued liabilities of $1.2 
million. For a more detailed analysis of our accounts receivable, see ―— Accounts Receivable‖ below. 

Net cash used in operating activities was $14.4 million in 2010, compared to $48.4 million cash 
provided by operating activities in 2009. Net cash used in our operating activities in 2010 resulted 
primarily from (1) our net loss of $12.6 million, (2) an increase in inventories of $8.6 million, (3) an 
increase in income tax payable of $5.5 million, and (4) an increase in accounts payable and accrued 
liabilities of $686,000. These items were partially offset by (1) an increase in inventory provision of 
$6.8 million, (2) depreciation of property, plant and equipment and amortization of licenses and 
permits of $4.23 million, (3) write-offs for equipment and loss on disposal of $1.24 million and (4) an 
increase in accounts receivable of $1.0 million. For a more detailed analysis of our accounts receivable, 
see ―— Accounts Receivable‖ below. 

Investing Activities 

Net cash used in investing activities was $13.8 million in 2011, compared to $19.2 million in 2010. 

In 2011, cash used in investing activities included $15.0 million used to acquire property, plant and 
equipment partially offset by proceeds from redemption of short term investment of $1.5 million and 
$122,000 from the disposal of equipment. 

Net cash used in investing activities was $19.2 million in 2010, compared to $11.7 million in 2009. 

In 2010, cash used in investing activities included $24.8 million used to acquire property, plant and 
equipment partially offset by proceeds from redemption of short term investment of $7.3 million and 
$232,000 from the disposal of equipment. 

Financing Activities 

Net cash provided by financing activities was $613,000 in 2011 compared to $58.2 million in 2010. 
In 2011, net cash provided by our financing activities included net proceeds of $749,000 from issuance 
of common shares and government funding of $1.6 million. We also received loan proceeds of $11.4 
million and made loan repayments of $10.7 million. We paid dividends of $5.9 million to and received 
loan payment of $3.4 million from the non-controlling interest shareholder in Sinovac Beijing in 2011. 

Net cash provided by financing activities was $58.2 million in 2010 compared to $5.3 million in 
2009. In 2010, net cash provided by our financing activities included net proceeds of $62.3 million 
from issuance of common shares and proceeds of $372,012 from government funding. We also 
received loan proceeds of $20.0 million and made loan payments of $17.9 million. We paid dividends 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
of $3.3 million and loaned $3.3 million to non-controlling interest shareholders in Sinovac Beijing in 
2010. 

Accounts Receivable 

Our total accounts receivable decreased by $4.5 million to $17.8 million as of December 31, 2011 
from $22.4 million as of December 31, 2010. Our accounts receivable turnover time in 2011 was 245 
days, as compared to 261 days in 2010 and 95 days in 2009. The decrease in our turnover time was 
mainly due to more effective credit management. 

Our maximum exposure to credit risk at the balance sheet date relating to accounts receivables is 

summarized as follows: 

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Aging within one year 
Aging greater than one year, net off allowance for 

doubtful accounts 

Total trade receivable — net 

   $ 

   $ 

Borrowings 

December 31, 

2010 

2011 

(in thousands) 

19,745    $ 

16,025   

2,250   
21,995    $ 

827   
16,852   

As of December 31, 2011, we had $4.7 million in short-term borrowings, offset by $104.3 million in 

cash, resulting in a liquid assets balance of $99.6 million, compared with $91.1 million at the end of 
2010. We hold our cash and cash equivalents in interest-bearing dollar and renminbi denominated 
accounts at registered banks. The following table summarizes our borrowings as of December 31, 2011: 

Type 
Bank 

loan    

Amount 
RMB10 million 
($1,571,166) 

Interest 
Rate 

7.87% 
floating(1) 

Interest 
Payment    
quarterly   

Maturity 
Date 
December 21, 
2012 

Purpose 
operation 

The loan agreement was under a general credit facility agreement with the China 
Merchants Bank with a limit of RMB 30 million for the period from December 22, 
2011 to December 21, 2012, of which RMB 20 million for working capital use and the 
remaining for issuing financial guarantees. 

Bank 

loan    

RMB20 million 
($3,142,332) 

8.67% 
floating(2) 

monthly   

December 21, 
2012 

operation 

The loan is guaranteed by a third party, with a guarantee fee of $63,000 
(RMB400,000) over the term of the loan and the trade receivables of Sinovac Beijing 
with a carrying value of not lower than RMB 35 million was pledged to the guarantee 
company.  

Bank 

loan 

RMB33,745,050 
($5,301,907) 

6.90% 
floating(3) 

quarterly   

November 13, 
2015 

construction 
of 
Changping 
facility 

The loan is for construction of the Changping facility and as a maximum credit 
amount of RMB200 million.  We also obtained a credit with a maximum quota for 
issuing letter of credits of RMB80 million. Plant and building of Sinvoac Beijing with 
a net book value of $3.4 million (RMB 21.5 million) was pledged as collateral. Plant 
and building of Sinovac Beijing with a net book value of $3.4 million (RMB21.5 
million) was pledged as collateral. 

Bank 

loan 

RMB76.5 
million 
($12,019,420) 

6.9% 
floating(3) 

monthly   

February 9, 
2015 

purchase of 
Changping 
Facility 

The loan is exclusively for the purchase of the Changping facility. The total amount of 
the loan is $14.14 million (RMB90 million) and is advanced to the Company in six 
installments according to the agreement. Land and building of the Changping facility 
of Sinovac Beijing with a net book value of $7.38 million (RMB 46.97 million) were 
pledged as collateral.  

(1)         20% above the prime rate of a one-year term loan published by the Bank of China. 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
     
     
     
     
     
  
  
  
     
     
     
     
     
  
  
  
  
  
  
     
     
     
     
     
  
  
  
     
     
     
     
     
  
  
  
  
  
  
  
     
     
     
     
     
  
  
  
     
     
     
     
     
  
  
  
  
  
  
  
     
     
     
     
     
  
  
  
 
  
(2)         Annual interest rate at 10% above Bank of China’s prime rate for loans of six months to one year 

plus 1.456% of financing fee per year.  

(3)         Annual interest rate at the bank’s prime lending rate and adjusted every 12 months.  

Our weighted average effective interest rate was 5.78%, 5.56% and 6.71% for the years ended 

December 31, 2009, 2010 and 2011, respectively.  

Restrictions on Cash Dividends 

We are a holding company, and we rely on dividends paid by our subsidiaries, Sinovac Beijing, 
Sinovac Dalian, Sinovac R&D and Tangshan Yian, 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 certain reserve funds. These 
reserves can be used to recoup previous years’ 

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Table of Contents 

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 its after-tax 
profits based on PRC accounting standards to its enterprise development funds and employee welfare 
and bonus funds. These funds also are not distributable as cash dividends. In addition, if Sinovac 
Beijing, Sinovac Dalian, Sinovac R&D or Tangshan Yian 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 the SAFE. See ―Item 10D. Exchange Controls.‖ 

Capital Expenditures 

We made capital expenditures of $4.3 million, $24.8 million and $14.99 million in 2009, 2010 and 

2011, respectively. We spent $9.15 million to build up Changping facility and $5.84 million on 
purchasing equipment. As of December 31, 2011, our commitments of capital expenditures were 
approximately $3.4 million, primarily for manufacturing facility expansion and purchase of Changping 
facility. We will finance such commitments through short-term and long-term borrowings, proceeds 
from our public offering and cash generated from operations. 

C.            Research and Development, Patents and Licenses, Etc. 

See discussions under ―— ITEM 5A. Research and Development Programs.‖ 

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, 2011 to December 31, 2011that 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 contractual obligations and commitments as of December 31, 

2011 for the periods indicated: 

Contractual obligations 
Long-term debt obligations 

(including interest) 

R&D expenses, liabilities and 

commitment 

Operating lease obligations 
Purchase of facilities commitments 

Payments due by period 

Total 

Less than 
1 year 

—   

—   

   1 – 3 years     3 – 5 years    
(in thousands) 
—   

—   

More than 
5 years 

   $  23,596    $ 

5,110    $ 

—    $  18,486    $ 

2,541   
9,877   
3,407   

241   
805   
3,407   

2,300   
2,415   
—   

—   
1,610   
—   

—   

—   

—   
5,047   
—   

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Accounts payable and accrued 

liabilities 

29,522   

29,522   

—   

—   

—   

Total 

   $  68,943    $  39,085    $ 

4,715    $  20,096    $ 

5,047   

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Table of Contents 

G. Safe Harbor 

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 need 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; and  

                  other risks outlined in our filings with the Securities and Exchange Commission, or the SEC, 

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 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 

Kenneth Lee 
Simon Anderson(1)(2)(3) 
Yuk Lam Lo(1)(2)(3) 
Meng Mei(1)(2)(3) 

Age 
47 

44 
50 
63 
57 

Position/Title 
Chairman, President, Chief Executive Officer 
and Secretary 
  Director 
  Independent Director 
  Independent Director 
  Independent Director 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Nan Wang 

Ming Xia 

45 

38 

Interim Chief Financial Officer, Vice 
President, Business Development, Clinical 
Research 
  Vice President, Sales and Marketing 

(1) Member of the audit committee. 

(2) Member of the nominating and corporate governance committee.  

(3) Member of the compensation committee. 

Dr. Weidong Yin has served as our chairman, president, chief executive officer and secretary since 
September 2003. Mr. Yin is also the general manager of Sinovac Biotech and the chairman of Sinovac 
Hong Kong, Tangshan Yian and Sinovac Dalian. He is the former general manager of Tangshan Yian 
Bioengineering Co., Ltd., and previously he worked as a medical doctor in infectious disease at the 
China Center for Disease Control and Prevention, Tangshan City, Hebei province. Dr. Yin has been 
dedicated to hepatitis research for over 20 years and was instrumental in the development of our 
Healive vaccine. In addition, Dr. Yin has been appointed as the principal investigator by the Chinese 
Ministry of Science and Technology for many key  

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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 obtained his MBA from the 
National University of Singapore. 

Mr.Kenneth Lee has served as a director on the board of our company since May 2011.  He is a 
Principal at SAIF Partners, which is one of the largest and most successful growth venture capital funds 
focused on China.  SAIF Partners IV L.P. is the largest shareholder in Sinovac Biotech Ltd.  Mr. Lee 
has more than 15 years of experience across private equity investment, corporate finance, and business 
development in China.  Before becoming a member of the SAIF team in 2007, he had served as the 
Chief Financial Officer of Topsec Holdings from 2006 to 2007.  From 2004 to 2005, he worked as a 
Principal at RimAsia Capital Partners.  Prior to RimAsia Capital Partners, Mr. Lee served in various 
positions at Delta Associates, the exclusive advisor to Asia Equity Infrastructure Fund, CNK 
Telecommunications Limited, H&Q Asia Pacific, and Salomon Brothers Inc. in New York.  Currently, 
he is a non-executive director on the boards of Yayi International Inc. (OTC: YYIN) and China 
Hanking Holdings Limited (SEHK:  03788).  Mr. Lee graduated from Amherst College in 
Massachusetts, USA in 1990 and obtained a Bachelor of Arts degree in Philosophy. 

Mr. Simon Anderson has served as an independent director of our company since July 2004. 
Mr. Anderson is a member of our audit, compensation, and nominating and corporate governance 
committees. Mr. Anderson provides consulting expertise in the areas of regulatory compliance, 
exchange listings and financial operations. He was admitted as a member of the Institute of Chartered 
Accountants in British Columbia in 1986. Mr. Anderson serves as chief financial officer of companies 
listed on North American stock exchanges, including IBC Advanced Alloys Corp., which manufactures 
and processes alloys at its U.S. plants. Mr. Anderson also serves as a director of Simba Gold Corp., a 
gold exploration company and War Eagle Mining Company Inc., a zinc exploration company. 

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 nominating and corporate governance committees. Mr. Lo 
was heavily involved in several committees of the HKSAR Government. He had been appointed a 
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. Currently Mr. Lo is 
serving as a Member of the Advisory Council for Food Safety of the Food and Health Bureau HKSAR, 
a Director of the Chinese Manufacturers’ Association of Hong Kong (CMA) and Chairman of the 
Innovation and Technology Committee of CMA. Mr. Lo is also the Hononary Founding Chairman of 
Hong Kong Bio-Organization.In the educational area, Mr. Lo has been elected an Honorary Fellow of 
the Hong Kong University of Science and Technology. He is a member of the Advisory Committee of 
the Vocational Training Council, an Executive Vice-President of Asian College of Management, 
Adjunct Professor of the Chinese University of Hong Kong and Honorary Professor of several 
universities in China. In China, Mr. Lo was a Consultant to the Economic Bureau of Changchun and a 
Member of the Advisory Committee of the Shenzhen Municipal Science and Technology Bureau. At 
present, he is a Consultant of the Centre for Disease Control and Prevention of China. At present, he is 
a Consultant of the Centre for Disease Control and Prevention of China. In the business sector, Mr. Lo 
had worked almost 30 years as Asia Pacific President for 2 multi-national technology companies, Bio-
Rad (NYSE:BIO) and Perkin Elmer (NYSE:PKI) and is now the Chairman of  Lo’s Associates 
Ltd., vice-Chairman of Santai Eco-Fishery Ltd., vice-Chairman of APlus OTC Health Group 
Ltd.,   Senior Advisor of Questmark Capital Management Sdn. Bhd., and Senior Director of Questmark 
Asia Ltd.Mr. Lo is an Independent Director of South East Group Ltd. (0726.HK) and Shangpharma 
(NYSE:SHP). 

Mr. Mei Meng 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 nominating and corporate 
governance 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 TusPark Co., Ltd., which is engaged in the 
development, construction, and management of TusPark and is providing services to enterprises based 
in TusPark.  TusPark 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. 

Ms. Nan Wang has served as the Vice General Manager of Sinovac Beijing since 2001 where she 
oversees business development and clinical research. From 1988 to 1993, Ms. Wang was a researcher 
in biology at the Life Science College of Peking University, PRC. From 1993 to 2001, she worked as a 
manager at SinoBioway. Ms. Wang received her bachelor’s degree in biology from Peking University 
and her master 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. Ming Xia has served as Vice President of Sinovac Beijing since 2011 where he oversees sales 

and marketing departments. Mr. Ming Xia has over 15 years’ experience in vaccine sales and 
marketing in China. He worked in Aventis Pasteur before joining Sinovac in 2002 and has served as 
Regional Sales Manager, National Sales Manager and Sales Director at Sinovac. Mr. Xia obtained his 
bachelor degrees in Biochemistry at Anhui University and in International Trade at Shanghai Institute 
of Foreign Trade. Mr. Xia has made significant contributions to our sales revenue growth in previous 
years with outstanding leadership and performance results. He kept his top record of generating sales 
revenue for many years after joining Sinovac. He is a leader with creativity and developed the sales 
strategy for our existing products. Mr. Ming Xia organized the reform on sales strategy to meet the 
change of the market situation. 

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B. Compensation 

In 2011, the aggregate cash compensation paid to our directors and executive officers was 

approximately $1.24 million. The total amount of compensation paid to executive directors in 2011 
included payment made to Ms. Chup Hung Mok, a former independent director, who resigned from the 
board effective December 31, 2011. No executive officer is entitled to any severance benefits upon 
termination of his or her employment with our company. The bonus plan of executive officers is made 
based on the annual performance of the company in different functions. Each vice president’s bonus is 
determined based on a comparison of their actual performance in each of the functional areas they 
supervise objectives set at the beginning of the years. The bonus payment plan is approved by the 
board of the company they are serving. For options granted to officers and directors, see ―2003 Stock 
Option Plan.‖ 

Our board of directors and shareholders approved the issuance of up to 5,000,000 common shares 
upon exercise of options granted under our 2003 stock option plan. The following table summarizes, as 
of March 31, 2012, the outstanding options that we granted to several of our directors, executive 
officers, principal shareholders and to other individuals as a group under our 2003 Stock Option Plan. 

Name 
Simon 

Anderson 

Yuk Lam Lo    
Xianping 
Wang 
Chuphung 
Mok(1) 

Common Shares Underlying 
Outstanding Options 

1.60   

  Exercise Price ($/Share)    Grant Date 
January 20, 
2009 
January 20, 
2009 
January 20, 
2009 
January 20, 
2009 

1.60   

1.60   

1.60   

   Expiration Date   
January 19, 
2014 
January 19, 
2014 
January 19, 
2014 
January 19, 
2014 

50,000   

50,000   

50,000   

50,000   

(1)         Ms. Chup Hung Mok resigned from the board in January 2012 for her personal reason. 

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 benefit, medical insurance benefits, housing funds, 
unemployment and other statutory benefits. 

2003 STOCK OPTION PLAN 

Our board of directors adopted a Stock Option 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 is dependent upon 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 our Stock Option Plan. 

        Size of plan.  We have reserved an aggregate of 5,000,000 of our common shares for issuance 
under our 2003 Stock Option Plan. As of April 2, 2012, options to purchase an aggregate of 
1,728,500 of our common shares were issued and outstanding and an aggregate of 3,221,000 
common shares have been issued pursuant to options issued under the plan. 

         Administration.  Our Stock Option 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 our Stock Option 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 Stock Option 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 is 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  

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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 2003 Stock Option Plan will expire in 2023. 
Our board of directors has the authority to terminate our Stock Option Plan prior to the expiry of 
the plan provided that such early termination shall not affect the options then outstanding under 
the plan.  

C. Board Practices 

Board of Directors 

Our Articles of Association prescribes that we should have a minimum of one and a maximum of 15 

directors. Currently, our board of directors comprises five board members, three of whom are 
independent. 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. 

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.  

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 

nominating and corporate governance 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. 

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In 2011, our audit committee held meetings or passed resolutions by unanimous written consent 

seven times. 

Compensation Committee 

Our compensation committee consists of Messrs. Simon Anderson, Yuk Lam Lo and Mr. Meng Mei 
and is chaired by Mr. Meng Mei, all of whom satisfy the ―independence‖ requirements of Rule 5605 of 
the NASDAQ Listing Rules 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 2011, our compensation committee held meetings or passed resolutions by unanimous written 

consent three times. 

Nominating and Corporate Governance Committee 

Our nominating and corporate governance committee consists of Messrs. Simon Anderson, Yuk 

Lam Lo and Mr. 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 former chairman, Ms. Chup Hung Mok 
resigned from the board effective December 31, 2011. The nominating and corporate governance 
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 nominating and corporate 
governance 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 2011, our nominating and corporate governance 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 the powers of the company 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. 

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D. Employees  

As of December 31, 2009, 2010 and 2011, we had 400, 483 and 614 full-time employees. Of our 
workforce as of December 31, 2011, about 85 employees are engaged in research and development and 
165 employees are engaged in sales and marketing. None of our employees are represented by a labor 
union or covered by a collective bargaining agreement. 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 December 31, 2011, 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 54,773,961 common shares outstanding as of 

December 31, 2011. Beneficial ownership is determined in accordance with the rules and regulations of 
the SEC. In computing the number of shares beneficially owned by a person and the percentage 
ownership of that person, we have included shares that the person has the right to acquire within 60 
days, including through the exercise of any option, warrant or other right or the conversion of any other 
security. These shares, however, are not included in the computation of the percentage ownership of 
any other person. 

Directors and Executive Officers: 
Weidong Yin 
Simon Anderson 
Yuk Lam Lo 
Nan Wang 
Ming Xia 
Institutional Shareholders (as of 

March 28) 

SAIF Partners IV(1) 
Wellington Management Company, LLP 

Shares Beneficially Owned 
% 
Number 

6,134,250   
97,400   
50,000   
40,500   
36,000   

10,595,720   
3,464,387   

11 % 
*   
*   
*   
*   

19.4 % 
6.3 % 

*      Less than 1%.  
(1)   According to the 13-D Filing made by SAIF Partners on December 29, 2011 (shares beneficially 

owned as of December 31, 2010 – 6.88%)            

None of our existing shareholders has different voting rights from other shareholders. 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, 2011, 54,773,961 of our common shares were issued and outstanding. 

Approximately 89% of the issued and outstanding shares are held by the record shareholders in the 
United States. 

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

Compensation of Directors and Executive Officers.‖ 

ITEM 7. MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS 

A. Major Shareholders  

Please refer to ―Item 6. Directors, Senior Management and Employees — Share Ownership.‖ 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
  
  
  
  
    
    
  
  
  
 
  
  
  
  
  
  
B. Related Party Transactions  

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Transaction with Lo Yuk Lam 

In connection to the establishment of the Sinovac Hong Kong, we have been using part of our 
independent director’s office as our office. We pay our share of the utilities and property management 
fees. 

Transactions with Certain Directors and Affiliates 

We entered into two operating lease agreements with SinoBioway, a non-controlling shareholder of 
Sinovac Beijing, in 2004, with respect to Sinovac Beijing’s production plant and laboratory in Beijing 
for total annual rent of approximately RMB1.4 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 to increase the 
rent from RMB452,600 to RMB1,357,000 per year. We entered into another operating lease agreement 
with SinoBioway in June 2007 with respect to Sinovac Beijing’s production plant in Beijing for an 
annual rent of approximately RMB2.0 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 R&D’s (formerly known as Sinovac Biological) business on research 
and development for an annual rent of approximately RMB861,000. The lease commenced on 
September 30, 2010 and has a term of five years. We incurred rent of $503,136, $581,941 and 
$804,565 to SinoBioway for these leases in 2009, 2010 and 2011, respectively. 

In 2009, 2010 and 2011, we incurred $121,119, $176,032 and $274,812, respectively, to our 

directors for management consulting services and director fees. 

Share Options 

See ITEM 6.B. ―Directors, Senior Management and Employees — 2003 Stock Option Plan.‖ 

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 

In November 2008, a death of a minor in Beijing was reported, which coincided with the 
administration of Healive that we produced two days prior. According to the autopsy results, the 
government investigation confirmed that the death was caused by myocarditis. However, in June 2009, 
parents of the dead commenced a legal proceeding against us and other three defendants at Beijing 
Haidian District People’s Court and claimed RMB616,858 as compensation. On November 19, 2010, 
the Beijing’s Haidian District People’s Court absolved Sinovac of liability in the matter. 

On October 18, 2010, the plaintiff, Beijing Acctrue Technology Co., Ltd., filed a case of software 

copyright infringement against Sinovac Beijing and other five defendants. Under its claims against 
Sinovac Beijing, the plaintiff only demanded Sinovac Beijing’s immediate cease of use of the 
infringing software products without demanding the destruction and deletion of the software products 
involved in such case, the damages for the losses suffered by plaintiff, the recovery for reasonable 
expenses incurred to plaintiff and litigation fees. 

Other than as described above, we are not currently a party to any serious litigation or other legal 
proceedings brought against us. We are also not aware of any legal proceedings, investigation or claim, 
or other legal exposure that has a more than remote possibility of having a material adverse effect on 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
our business, financial condition or results of operations. We may be subject to legal proceedings, 
investigations and claims incidental to the conduct of our business from time to time. 

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. 

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We are a holding company, and we rely on the dividends paid by our majority-owned subsidiary, 
Sinovac Beijing and Sinovac Dalian, and wholly owned subsidiaries Sinovac R&D through Sinovac 
HK and wholly owned Tangshan Yian, 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. Tangshan Yian is 
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 Tangshan Yian. 
Tangshan Yian is also required to reserve a portion of its after-tax profits to its employee welfare and 
bonus fund, the amount of which is subject to its board of directors. Sinovac Beijing and Sinovac 
Dalian are required to set aside, at the discretion of their boards of directors, a portion of their after-tax 
profits to their reserve fund, enterprise development fund and employee welfare and bonus funds. 
These funds are not distributable in cash dividends. 

Furthermore, under the PRC Enterprise Income Tax Law promulgated on March 16, 2007, and its 

implementation rules promulgated by the State Council of China on December 6, 2007, if we are 
deemed as a non-PRC tax resident enterprise without an office or premises in the PRC, withholding tax 
at the rate of 10% will be applicable to dividends received by us from Tangshan Yian, unless the tax is 
entitled to reduction or elimination in accordance with any future PRC laws or regulations or an 
applicable tax treaty between the PRC and Antigua and Barbuda. As of the date of this annual report, 
Antigua and Barbuda has not entered into any such tax treaties with the PRC. 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%. 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 because it is unclear whether Sinovac Hong Kong is considered as 
the beneficial owner of the dividends in substance. 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 new withholding tax imposed on dividends paid to us by our PRC subsidiaries would reduce our 
net income attributable to the stockholders. 

B. Significant Changes  

Except as 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  

The table below sets forth, for the periods indicated, the high and low closing prices on the 

NASDAQ Global Market and the NASDAQ Global Select Market for our common shares. 

Annual High and Low 
2007 
2008 
2009 
2010 
2011 
Quarterly High and Low 

First quarter 2010 
Second quarter 2010 

Sales Price 

High 

Low 

8.33   
5.22   
12.50   
7.78   
4.92   

7.78   
6.00   

2.50   
0.75   
1.02   
3.50   
1.91   

5.77   
3.72   

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
  
  
  
  
    
    
  
  
Third quarter 2010 
Fourth quarter 2010 
First quarter 2011 
Second Quarter 2011 
Third Quarter 2011 
Fourth Quarter 2011 
Monthly High and Low 
October 2011 
November 2011 
December 2011 
January 2012 
February 2012 
March 2012 
April 2012 (through April 11, 2012)   

59 

4.71   
5.06   
4.92   
4.55   
3.33   
2.88   

2.41   
2.47   
2.88   
2.36   
2.25   
2.24   
2.05   

3.50   
3.58   
3.98   
2.77   
1.91   
1.92   

1.92   
1.93   
2.11   
2.10   
2.05   
1.92   
1.78   

  
  
  
  
  
  
  
    
    
  
  
  
  
  
  
  
 
Table of Contents 

B. Plan of Distribution 

Not applicable. 

C. Markets  

Our common shares traded on the OTC Bulletin Board from February 21, 2003 to December 7, 2004. 

Since December 8, 2004, our common shares have been listed on the American Stock Exchange, now 
the NYSE Amex. Since November 16, 2009, our common shares have been listed on the NASDAQ 
Global Market under the symbol ―SVA.‖ Since January 3, 2011, our common shares have been 
included into the NASDAQ Global Select Market under the symbol ―SVA.‖ 

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 with limited liability and our affairs are governed by our Articles of 
Incorporation, By-laws and the International Business Corporation 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. 

Dividends 

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. 

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 requires 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. 

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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. 

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; 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. 

Differences in Corporate Law 

The International Business Corporations Act is modeled after English law but does not follow many 

recent English law statutory enactments. In addition, the International Business Corporations Act 
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 Law applicable to us and the laws applicable to companies incorporated in the United 
States and their shareholders. 

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 three-fourths 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 offerer 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. 

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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, based on English authorities, which would in all likelihood be of persuasive authority in 
Antigua and Barbuda, there are 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. 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, English 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. 

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  

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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 Law, 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. 

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. 

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. 

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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 preference shares in one or more series and to designate the price, rights, 
preferences, privileges and restrictions of such preference 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. 

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 State Administration of Foreign Exchange, or 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. 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. 

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The following discussion does not deal with the tax consequences to any particular investor or to 

persons in special tax situations such as: 

                  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;  

                  tax-exempt entities;  

                  persons liable for alternative minimum tax;  

                  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 the total combined voting power of 

all classes of our voting stock;  

                  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 U.S. persons for all substantial decisions or (2) has a valid election in 
effect under applicable U.S. Treasury regulations to be treated as a U.S. person.  

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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. 

Taxation of Dividends and Other Distributions on Our Common Shares 

Subject to the passive foreign investment company, or 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, for taxable 
years beginning before January 1, 2013, dividends may constitute ―qualified dividend income‖ eligible 
to be taxed at the preferential rate applicable to capital gains (currently, a maximum rate of 15 percent), 
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  

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below) for the taxable year in which the dividend was paid and the preceding taxable year and 
(3) certain holding period requirements are met. Under 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 our 
common shares are. 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 normally applicable to dividends. 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‖ but could, in the case of certain U.S. Holders, constitute ―general 
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. 

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. Your tax basis in our common 
shares will generally equal the cost of such shares. 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 
resident enterprise for PRC tax purposes and PRC tax were to be imposed on any gain from the 
disposition of the common shares (see ―Item 10. Additional Information — E. Taxation — PRC 
Taxation‖), a U.S. Holder that is eligible for the benefits of the income tax treaty between the United 
States and the PRC may elect to treat the gain as PRC source income. You should consult your tax 
advisors regarding the proper treatment of gain or loss in your particular circumstances. 

Passive Foreign Investment Company 

Based on the market price of our common shares, the value of our assets, and 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, 2011. 

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 (based on an average of the quarterly values of the assets) 

during such year is attributable to assets that produce passive income or are held for the 
production of passive income.  

  
  
  
  
  
  
  
  
  
  
  
For purposes of the PFIC rules, passive income 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 earning 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 year as to whether we were a PFIC 
for that year. 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. Because the value of our assets 
for purposes of the PFIC test will generally be determined by reference to the market price of our 
common shares, fluctuations in the market price of our common shares may cause us to become a PFIC 
for any year. If we are a PFIC for any year during which you hold our common shares, we generally 
will continue to be treated as a PFIC with respect to you for all succeeding years during which you hold 
our common shares, 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 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. 

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For each taxable year we are treated as a PFIC with respect to you, you will be subject to special tax 

rules with respect to any ―excess distribution‖ you receive and any gain you recognize from a sale or 
other disposition (including a pledge) of the common shares, unless you make a ―mark-to-market‖ 
election as discussed below. In addition, a step-up in the tax basis of stock in a PFIC may not be 
available upon the death of an individual U.S. Holder. 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 will be treated as an excess 
distribution. 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 the highest 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.  

The tax liability for amounts allocated to years prior to the year of disposition or excess distribution 

cannot be offset by any net operating losses for such years, and gains (but not losses) from a sale or 
other disposition of the common shares cannot be treated as capital, 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 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,‖ except 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. 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 become a PFIC. 
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. 

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. 

Unless otherwise provided by the U.S. Treasury, each U.S. shareholder of a PFIC is required to file 
an annual report containing such information as the U.S. Treasury may require. If we 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. 

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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 Internal Revenue 
Service and possible U.S. backup withholding at a current rate of 28%. 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 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 Internal Revenue Service Form W-9. U.S. Holders should consult their 
tax advisors regarding the application of the U.S. information reporting and backup withholding rules. 

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 Internal Revenue Service and furnishing any required information in a timely manner. 

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, which took effect as of January 1, 2008, 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. 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 and the capital gains derived from transferring our 71.56% interest to Sinovac 
Hong Kong may be exempt from PRC withholding tax but be subject to PRC income tax at 25%. 

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 the 10% PRC 
withholding tax. 

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 Securities Exchange Act of 1934, we are required to file reports and other information with 
the SEC. Specifically, we are required to file annually a Form 20-F: (1) within six months after the end 
of each fiscal year, which is December 31, for fiscal years ending before December 15, 2011 and 
(2) within four months after the end of each fiscal year for fiscal years ending on or after December 15, 
2011. Copies of reports and other information, when so filed, may be inspected without charge and 
may be obtained at prescribed rates at the public reference facilities maintained by the Securities and 
Exchange Commission at Judiciary Plaza, 100 F Street, N.E., Washington, D.C. 20549, and at the 
regional office of the Securities and Exchange Commission located at Citicorp Center, 500 West 
Madison Street, Suite 1400, Chicago, Illinois 60661. The public may obtain information regarding the 
Washington, D.C. Public Reference Room by calling the Commission at 1-800-SEC-0330. The SEC 
also maintains a web site at http://www.sec.gov that 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 http://www.sinovac.com. In addition, we will provide hardcopies of our annual report free of 
charge to shareholders upon request. 

I. Subsidiary Information  

For a listing of our subsidiaries, see ―Item 4. C. Information on the Company — Organizational 

Structure.‖ 

ITEM 11. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 

Foreign Exchange Risk 

Our revenues and costs and our expenses (other than U.S. dollar denominated professional, investor 

relations and miscellaneous fees related to our operations as a public company) are currently 
denominated entirely 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, Finland and Sweden may be affected by fluctuations in the value of renminbi 
against the currencies of those countries. We do not believe that  

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we currently have any significant direct foreign currency exchange rate risk and have not hedged 
exposures denominated in foreign currencies or any other derivative financial instruments. 

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. On July 21, 2005, the PRC government changed its decade-old policy of pegging the 
value of the renminbi to the U.S. dollar. Under the new policy, the renminbi is permitted to fluctuate 
within a narrow and managed band against a basket of certain foreign currencies. This change in policy 
caused the renminbi to appreciate approximately 21.5% against the U.S. dollar over the following three 
years. Since reaching a high against the U.S. dollar in July 2008, however, the renminbi has traded 
within a narrow band against the U.S. dollar until June 2010, when the renminbi began to further 
appreciate against the U.S. dollar as a result of the PRC government’s announcement on June 19, 2010 
that it would further increase the flexibility of the renminbi exchange rate. These changes in currency 
policies resulted in an appreciation of the renminbi against the U.S. dollar by approximately 31.5% 
between July 21, 2005 and December 31, 2011. There remains significant international pressure on the 
PRC government to adopt an even more flexible currency policy, which could result in a further and 
more significant appreciation of the renminbi against the U.S. dollar. By way of example, assuming we 
had converted a U.S. dollar denominated cash balance of $1.0 million as of December 31, 20111 into 
renminbi at the exchange rate of $1.00 for RMB6.3647 as of December 31, 20111, such a cash balance 
would have been RMB6.36 million. Assuming a further 1% appreciation of the renminbi against the 
U.S. dollar, such a cash balance would have decreased to RMB6.30 million as of December 31, 2011. 

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 statement of operations 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 expenses 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 5.78%, 5.56% and 6.71% for the years ended December 31, 2009, 2010 and 
2011. A hypothetical increase in interest rates of 1% would increase our annual interest and financing 
expenses by $215,000 based on our outstanding indebtedness as of December 31, 2011. 

ITEM 12. DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES 

Not applicable. 

PART II 

ITEM 13. DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES 

None. 

ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND 
USE OF PROCEEDS 

A. — D. Material Modifications to the Rights of Security Holders 

  
  
  
  
  
  
  
  
  
  
  
  
None. 

F.            Use of Proceeds 

On February 2, 2010, we completed a follow-on public offering of our common shares. In this 
follow-on offering, we issued and sold an aggregate of 11,500,000 common shares at $5.75 per share. 
The common shares offered and sold were registered pursuant to the registration statement on Form F-
3 (File Number: 333-163165) effective on November 30, 2010 and the registration statement on 
Form F-3 (File Number: 333-164559) effective on January 27, 2010. UBS Securities LLC and Piper 
Jaffray & Co. were the representatives of the underwriters of the offering. We received net proceeds of 
approximately $61.8 million, after deducting underwriting discounts and commissions and estimated 
offering expenses payable by us. We intend to use the net proceeds we received from this offering for 
the following purposes: 

                  up to $30.0 million to fund the acquisition and expansion of production facilities and the 

enhancement of production lines;  

                  up to $15.0 million to fund the research and development of our product candidates and the 

expansion of our product pipeline; and  

                  the remaining amount for general corporate purposes.  

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Table of Contents 

The foregoing use of our net proceeds received from this offering represents our current intentions 
based upon our present plans and business condition. The amounts and timing of any expenditure will 
vary depending on the amount of cash generated by our operations, competitive and technological 
developments and the rate of growth, if any, of our business. Accordingly, our management will have 
significant discretion in the allocation of the net proceeds we received from this offering. Depending on 
future events and other changes in the business climate, we may determine at a later time to use the net 
proceeds for different purposes, including repayment of certain of our outstanding bank borrowings. 
Pending the use of the net proceeds, we intend to invest the net proceeds in a variety of capital 
preservation instruments, including short-term, investment-grade, interest-bearing instruments. 

We have spent approximately $16.4 million in acquisition of Sinovac Dalian and invested $4.4 

million in research and development. 

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 our system of disclosure controls and 
procedures was effective as of December 31, 2011. Please see below under ―Management’s Annual 
Report on Internal Control over Financial Reporting.‖ 

Changes in Internal Control over Financial Reporting 

As previously reported, we identified a material weakness as of December 31, 2010 related to the 

Company’s financial statement close process with respect to accounting estimates related to sales 
provision, allowance for doubtful accounts provision and inventory provision, which was subsequently 
remedied in 2011. 

We implemented a number of changes in our internal control over financial reporting during the 

year ended December 31, 2011. As of December 31, 2011, we have fully remediated the 
aforementioned material weakness in our internal control over financial reporting. Our remediation 
actions included the following: 

                  Designed and implemented additional control procedures related to sales provision, allowance 

for doubtful accounts provision and inventory provision; 

                  Timely and accurately collected information with respect to products held in the distribution 
channel and the related products’ shelve lives from the regional sales team to the financial 
reporting department; and 

                  Performed in-depth analysis including retrospective reviews with respect to significant 
accounting estimates to evaluate appropriateness of the estimation method and make 
necessary adjustments to reflect the change of business or market environment to arrive at 
appropriate provisions. 

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, except as described above, it has been determined that 
there has been no change during the period covered by this annual report that materially affected, or are 
reasonably likely to materially affect, our internal control over financial reporting. Our management 
will continue to work to strengthen our internal controls over financial reporting. 

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 system was designed to provide reasonable assurance regarding the reliability of 
financial reporting and the preparation and fair presentation of the consolidated financial statements for 
external purposes in accordance with accounting principles generally accepted in the United States and 
includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable 
detail, accurately and fairly reflect the transactions and dispositions of a company’s assets, (2) 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 being made only in accordance with authorizations of a company’s 
management and directors, and (3) 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. 

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Our management conducted an assessment of the effectiveness of our internal control over financial 
reporting as of December 31, 2011. In making this assessment, we used the criteria established within 
the Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of 
the Treadway Commission. This evaluation included review of the documentation of controls, 
evaluation of the design effectiveness of controls, testing of the operating effectiveness of controls and 
a conclusion on this evaluation. Based on this evaluation, we concluded that our internal control 
process over financial reporting was effective as of December 31, 2011. 

All internal control systems, no matter how well designed, have inherent limitations. Therefore, 
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. 

Ernst & Young LLP, an independent registered public accounting firm that audited the financial 
statements included in this annual report, has issued an attestation report on the effectiveness of our 
internal control over financial reporting. 

Attestation Report of the Registered Public Accounting Firm 

The attestation report issued by Ernst & Young LLP, an independent registered public accounting 
firm, on the effectiveness of internal control over financial reporting can be found on page F-3 of 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 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 
http://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 Ernst & Young LLP, our principal external auditors, for 2009 
and 2010. We did not pay any other fees to our auditors during the periods indicated below. 

Audit fees(1) 
Audit-related fees(2) 
Tax consulting service fees(3) 

2010 

2011 

   $  510,170    $  524,000   

115,054   
—   

—   

(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 and 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
 
 
review of financial statements included in our Form 20-Fs or services that are normally provided by 
accountants in connection with statutory and regulatory engagements for those fiscal years. 

(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 or review of our financial statements and are not reported under ―Audit Fees.‖ The 
services comprising the fees under this category include the work performed related to the 
prospectus filed by us during the year ended December 31, 2010. 

(3) ―Tax consulting service fees‖ means the aggregate fees billed in each of the fiscal years listed for 

professional services rendered  

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by our principal auditors for tax compliance, tax advice, and tax planning. 

Before our independent auditors are engaged to render any services, the engagement is 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 

Not applicable. 

ITEM 16G. CORPORATE GOVERNANCE 

Our corporate governance practices do not differ in any significant way from those followed by 

domestic companies under the listing standards of the NASDAQ Global Select Market. 

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* 

   Articles of Incorporation and By-laws 

Description of Document 

4.1 

4.2 

4.3 

4.4 

4.5 

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) 

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) 

Form of Employment Agreement between the Registrant and Weidong Yin, 
dated July 7, 2006 (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 July 14, 2006) 

    
     
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
4.6 

4.7 

4.8 

4.9 

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 4.6 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 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) 

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) 

Share Purchase Agreement between Sinovac Biotech Ltd. and Sansar Capital 
Management LLC dated January 22, 2008 (incorporated by reference to 
Exhibit 4.9 from our annual report on Form 20-F (file no. 001-32371) filed 
with the Securities and Exchange Commission on March 31, 2008) 

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Table of Contents 

Exhibit 
Number 

4.10 

4.11 

4.12 

4.13 

4.14 

8.1* 

11.1 

12.1* 

12.2* 

13.1* 

13.2* 

15.1* 

Description of Document 

Exclusive Promotion Service Agreement between Sinovac Beijing and 
GlaxoSmithKline (China) Investment Co., Ltd., dated July 30, 2007 
(incorporated by reference to Exhibit 4.10 from our annual report on Form 20-
F (file no. 001-32371) filed with the Securities and Exchange Commission on 
March 31, 2008) 

Equity Joint Venture Contract dated November 22, 2009 between Sinovac 
Hong Kong and Dalian Jingang (English Translation) (incorporated by 
reference to Exhibit 99.1 from our current report on Form 6-K (file no. 001-
32371) filed with the Securities and Exchange Commission on January 20, 
2010) 

Memorandum of Understanding dated November 22, 2009 between Sinovac 
Hong Kong and Dalian Jingang (English Translation) (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 January 20, 
2010) 

Equity Interest Transfer Agreement dated December 17, 2009 between 
Sinovac Hong Kong and Dalian Jingang (English Translation) (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 January 
20, 2010) 

Asset Acquisition Agreement dated February 10, 210 between Sinovac 
Beijing and Beijing Xingchang High-tech Development Co., Ltd. (English 
Translation) (incorporated by reference to Exhibit 4.10 from our annual report 
on Form 20-F (file no. 001-32371) filed with the Securities and Exchange 
Commission on April 16, 2010) 

   List of Subsidiaries 

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 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 Ernst & Young LLP 

101.INS** 

   XBRL Instance Document 

101.SCH**     XBRL Taxonomy Extension Scheme Document 

101.CAL**     XBRL Taxonomy Extension Calculation Linkbase Document 

101.DEF**     XBRL Taxonomy Extension Definition Linkbase Document 

101.LAB**     XBRL Taxonomy Extension Label Linkbase Document 

101.PRE**     XBRL Taxonomy Extension Presentation Linkbase Document 

  
  
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
     
  
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
*      Filed with this annual report on Form 20-F 

**   XBRL (eXtensible Business Reporting Language) information is furnished and not filed or a part 
of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 
1933, as amended, is deemed not filed for purposes of Section 18 of the Exchange Act of 1934, as 
amended, and otherwise is not subject to liability under these sections. 

73 

  
 
  
  
 
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SINOVAC BIOTECH LTD. 

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS 

Index 
Report of Independent Registered Public Accounting Firm  
Report of Independent Registered Public Accounting Firm on Internal Control Over 
Financial Reporting  
Consolidated Balance Sheets as of December 31, 2011 and 2010  
Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) for the 

Years Ended December 31, 2011, 2010 and 2009  

Consolidated Statements of Changes in Equity for the Years Ended December 31, 2011, 
2010 and 2009 
Consolidated Statements of Cash Flows for the Years Ended December 31, 2011, 2010 
and 2009 
Notes to Consolidated Financial Statements  

F-2 

F-3 
F-4 

F-6 

F-7 

F-10 
F-11 

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Table of Contents 

SIGNATURES 

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. 

Sinovac Biotech Ltd. 

By:  /s/ Weidong Yin 

Name: Weidong Yin 
Title: Chairman and Chief Executive Officer 

Date: April 12, 2012 

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Table of Contents 

Exhibit Number 

1.1* 

   Articles of Incorporation and By-laws 

Description of Document 

EXHIBIT INDEX 

4.1 

4.2 

4.3 

4.4 

4.5 

4.6 

4.7 

4.8 

4.9 

4.10 

4.11 

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) 

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) 

Form of Employment Agreement between the Registrant and Weidong Yin, dated 
July 7, 2006 (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 July 14, 2006) 

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 4.6 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 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) 

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) 

Share Purchase Agreement between Sinovac Biotech Ltd. and Sansar Capital 
Management LLC dated January 22, 2008 (incorporated by reference to Exhibit 4.9 
from our annual report on Form 20-F (file no. 001-32371) filed with the Securities 
and Exchange Commission on March 31, 2008) 

Exclusive Promotion Service Agreement between Sinovac Beijing and 
GlaxoSmithKline (China) Investment Co., Ltd., dated July 30, 2007 (incorporated 
by reference to Exhibit 4.10 from our annual report on Form 20-F (file no. 001-
32371) filed with the Securities and Exchange Commission on March 31, 2008) 

Equity Joint Venture Contract dated November 22, 2009 between Sinovac Hong 
Kong and Dalian Jingang (English Translation) (incorporated by reference to 

  
  
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
  
     
  
Exhibit 99.1 from our current report on Form 6-K (file no. 001-32371) filed with 
the Securities and Exchange Commission on January 20, 2010) 

4.12 

Memorandum of Understanding dated November 22, 2009 between Sinovac Hong 
Kong and Dalian Jingang (English Translation) (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 January 20, 2010) 

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Table of Contents 

Exhibit Number 

4.13 

Description of Document 

Equity Interest Transfer Agreement dated December 17, 2009 between Sinovac 
Hong Kong and Dalian Jingang (English Translation) (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 January 20, 2010) 

Asset Acquisition Agreement dated February 10, 210 between Sinovac Beijing and 
Beijing Xingchang High-tech Development Co., Ltd. (English Translation) 
(incorporated by reference to Exhibit 4.10 from our annual report on Form 20-F 
(file no. 001-32371) filed with the Securities and Exchange Commission on 
April 16, 2010) 

   List of Subsidiaries 

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 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 Ernst & Young LLP 

4.14 

8.1* 

11.1 

12.1* 

12.2* 

13.1* 

13.2* 

15.1* 

101.INS** 

   XBRL Instance Document 

101.SCH** 

   XBRL Taxonomy Extension Scheme Document 

101.CAL** 

   XBRL Taxonomy Extension Calculation Linkbase Document 

101.DEF** 

   XBRL Taxonomy Extension Definition Linkbase Document 

101.LAB** 

   XBRL Taxonomy Extension Label Linkbase Document 

101.PRE** 

   XBRL Taxonomy Extension Presentation Linkbase Document 

*      Filed with this annual report on Form 20-F  

**   XBRL (eXtensible Business Reporting Language) information is furnished and not filed or a part 
of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 
1933, as amended, is deemed not filed for purposes of Section 18 of the Exchange Act of 1934, as 
amended, and otherwise is not subject to liability under these sections. 

77 

  
  
  
  
     
  
  
     
  
     
  
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
     
  
 
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 

CONSOLIDATED FINANCIAL STATEMENTS 
(Expressed in U.S. Dollars) 

December 31, 2011 and 2010 

Index 

Report of Independent Registered Public Accounting Firm  

Consolidated Balance Sheets  

Consolidated Statements of Income (Loss) and Comprehensive Income (Loss)  

Consolidated Statements of Changes in Equity  

Consolidated Statements of Cash Flows  

Notes to Consolidated Financial Statements  

F-1 

  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Stockholders of 
Sinovac Biotech Ltd. 

We have audited the accompanying consolidated balance sheets of Sinovac Biotech Ltd. (the 
―Company‖) as of December 31, 2011 and 2010, and the related consolidated statements of income 
(loss) and comprehensive income (loss), changes in equity and cash flows for each of the three years in 
the period ended December 31, 2011. These financial statements are the responsibility of the 
Company’s management.  Our responsibility is to express an opinion on these financial statements 
based on our audits. 

We conducted our audits in accordance with the standards of the Public Company Accounting 
Oversight Board (United States).  Those standards require that we plan and perform the audit to obtain 
reasonable assurance about whether the financial statements are free of material misstatement.  An 
audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the 
financial statements.  An audit also includes assessing the accounting principles used and significant 
estimates made by management, as well as evaluating the overall financial statement presentation.  We 
believe that our audits provide a reasonable basis for our opinion. 

In our opinion, the financial statements referred to above present fairly, in all material respects, the 
consolidated financial position of Sinovac Biotech Ltd. at December 31, 2011 and 2010, and the 
consolidated results of its operations and its cash flows for each of the three years in the period ended 
December 31, 2011, in conformity with U.S. generally accepted accounting principles. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight 
Board (United States), Sinovac Biotech Ltd.’s internal control over financial reporting as of 
December 31, 2011, based on criteria established in Internal Control — Integrated Framework issued 
by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated 
April 12, 2012 expressed an unqualified opinion thereon. 

Vancouver, Canada 
April 12, 2012 

/s/ Ernst & Young LLP 
Chartered Accountants 

F-2 

  
  
  
  
  
  
  
  
  
 
Table of Contents 

Report of Independent Registered Public Accounting Firm 
on Internal Control Over Financial Reporting 

To the Board of Directors and Stockholders of 
Sinovac Biotech Ltd. 

We have audited Sinovac Biotech Ltd.’s internal control over financial reporting as of December 31, 
2011, based on criteria established in Internal Control — Integrated Framework issued by the 
Committee of Sponsoring Organizations of the Treadway Commission (the ―COSO‖ criteria).  Sinovac 
Biotech Ltd.’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’s Annual Report on Internal Control over Financial 
Reporting.  Our responsibility is to express an opinion on Sinovac Biotech Ltd.’s internal control over 
financial reporting based on our audit. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight 
Board (United States).  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 included obtaining an understanding of internal control over financial 
reporting, assessing the risk that a material weakness exists, testing and evaluating the design and 
operating effectiveness of internal control based on the assessed risk, and performing such other 
procedures as we considered necessary in the circumstances.  We believe that our audit provides a 
reasonable basis for our opinion. 

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 its inherent limitations, internal control over financial reporting may not prevent or detect 
misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the 
risk that controls may become inadequate because of changes in conditions, or that the degree of 
compliance with the policies or procedures may deteriorate. 

In our opinion, Sinovac Biotech Ltd. maintained, in all material respects, effective internal control over 
financial reporting as of December 31, 2011, based on the COSO criteria. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight 
Board (United States), the consolidated balance sheets of Sinovac Biotech Ltd. as of December 31, 
2011 and 2010, and the related consolidated statements of income (loss) and comprehensive income 
(loss), changes in equity and cash flows for each of the three years in the period ended December 31, 
2011 and our report dated April 12, 2012 expressed an unqualified opinion thereon. 

Vancouver, Canada 
April 12, 2012 

/s/ Ernst & Young LLP 
Chartered Accountants 

F-3 

  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Consolidated Balance Sheets 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

ASSETS 

Current assets 

Cash and cash equivalents 
Short-term investments (note 3) 
Accounts receivable – net (notes 4 and 9) 
Inventories (note 5) 
Due from related party (note 12(a)) 
Prepaid expenses and deposits (note 12(b)) 
Deferred tax assets (note 10) 

Total current assets 

Property, plant and equipment (notes 7 and 9) 
Long-term inventories (note 6)  
Long-term prepaid expenses (note 12 (b)) 
Prepayments for acquisition of equipment 
Deferred tax assets (note 10) 
Licenses and permits (note 8) 
Total assets 

LIABILITIES AND EQUITY 

Current liabilities 

Loans payable (note 9) 
Accounts payable and accrued liabilities (notes 7 and 13) 
Income tax payable (note 10) 
Deferred revenue (note 20) 
Deferred tax liability (note 10) 
Dividends payable 
Deferred government grants (note 19)  

Total current liabilities 

Deferred government grants (note 19)  
Loans payable (note 9) 
Long term payable for acquisition of assets  
Deferred revenue (note 20) 
Total long term liabilities 

Total liabilities 

Commitments and contingencies (notes 14 and 23) 

2011 

2010 

   $ 104,286,695    $ 101,585,490   
1,512,447   
—   
22,370,296   
17,834,407   
14,541,554   
8,113,428   
3,397,522   
—   
887,187   
1,804,555   
2,682,069   
—   

   132,039,085    146,976,565   

75,627,881   
5,248,237   
408,656   
828,902   
419,114   
1,336,254   

64,036,228   
395,516   
517,957   
576,232   
507,062   
1,348,364   
   $ 215,908,129    $ 214,357,924   

   $  4,713,498    $  10,435,887   
22,091,190   
958,411   
9,707,688   
1,005,186   
—   
1,559,589   

29,522,495   
3,351,127   
429,416   
—   
795,106   
1,830,566   

40,642,208   

45,757,951   

2,277,428   
17,321,327   
—   
10,369,695   
29,968,450   

2,464,565   
10,057,775   
4,842,509   
3,478,629   
20,843,478   

70,610,658   

66,601,429   

EQUITY 
Preferred stock 

Authorized 50,000,000 shares at par value of $0.001 each Issued and 

outstanding: nil 
Common stock (note 16) 

Authorized: 100,000,000 shares at par value of $0.001 each Issued 

—   

—   

54,774   

54,306   

  
  
  
  
  
  
  
    
    
  
  
    
    
  
    
    
  
  
  
  
  
  
  
  
    
    
  
  
    
    
  
  
  
  
  
  
  
  
    
    
  
    
    
  
  
    
    
  
    
    
  
  
  
  
  
  
  
  
    
    
  
  
  
    
    
  
  
  
  
  
  
  
    
    
  
  
  
    
    
  
    
    
  
  
    
    
  
    
    
  
  
    
    
  
  
    
    
and outstanding: 54,773,961(2010 -54,305,961) 

Additional paid-in capital 
Accumulated other comprehensive income 
Statutory surplus reserves (note 18) 
Retained earnings  

Total stockholders’ equity 

Non-controlling interests (notes 11 and 15) 

Total equity 

Total liabilities and equity 

   105,383,346    104,152,182   
6,883,834   
11,473,110   
3,876,084   

9,978,325   
11,808,271   
2,696,227   

   129,920,943    126,439,516   

15,376,528   

21,316,979   

   145,297,471    147,756,495   

   $ 215,908,129    $ 214,357,924   

The accompanying notes are an integral part of these consolidated financial statements. 

F-4 

  
  
  
  
  
    
    
  
  
    
    
  
  
  
    
    
  
  
    
    
  
  
 
Table of Contents 

Approved on behalf of the Board: 

/s/ Weidong Yin 
Director 

/s/ Simon Anderson 
Director 

F-5 

  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) 
Years ended December 31, 2011, 2010 and 2009 
(Expressed in U.S. Dollars) 

Sales (note 22) 

2011 

2010 
   $ 56,841,892    $ 33,401,426    $ 84,197,182   

2009 

Cost of sales - (exclusive of depreciation of land-use 
rights and amortization of licenses and permits of 
$290,526 (2010 - $546,623; 2009 - $418,867) (note 5)   

Gross profit 

21,127,410   

16,718,727   

20,063,361   

35,714,482   

16,682,699   

64,133,821   

Selling, general and administrative expenses (note 12)   

22,372,095   

18,885,270   

18,165,201   

Provision for doubtful accounts 

(166,865 ) 

1,921,493   

17,744   

Research and development expenses - net of $686,258 
(2010 - $43,278;2009 - $251,436) in government 
research grants  

9,006,550   

8,507,796   

4,405,618   

Depreciation of property, plant and equipment and 

amortization of licenses and permits 

1,436,944   

1,411,053   

692,696   

Government grants recognised as income 

(763,677 ) 

(1,924,134 ) 

(1,295,563 ) 

Total operating expenses 

Operating income (loss) 

31,885,047   

28,801,478   

21,985,696   

3,829,435   

(12,118,779 )  42,148,125   

Interest and financing expenses – net of $595,883 

(2010 - $147,520; 2009 - $321,596) in government 
grants 

Interest income 

Other income (expenses) 

(384,560 ) 

(1,178,072 ) 

(534,455 ) 

1,397,141   

1,132,907   

143,464   

279,866   

95,744   

(33,550 ) 

Loss on disposal and write down of equipment 

(454,973 ) 

(1,237,685 ) 

(169,678 ) 

Income (loss) before income taxes and non-

controlling interests 

4,666,909   

(13,305,885 )  41,553,906   

Income tax recovery (expenses) (note 10) 

(5,066,603 ) 

703,882   

(11,140,521 ) 

Consolidated net income (loss) 

(399,694 ) 

(12,602,003 )  30,413,385   

Less: income (loss) attributable to non-controlling 

interests 

Net income (loss) attributable to stockholders 
Net income (loss) 
Other comprehensive income  
Foreign currency translation adjustment 
Total comprehensive income (loss) 

445,002   

(4,094,659 )  10,454,997   

   $  (844,696 )  $  (8,507,344 )  $ 19,958,388   
   $  (399,694 )  $ (12,602,003 )  $ 30,413,385   

3,639,992   
3,240,298   

99,473   
3,547,617   
(9,054,386 )  30,512,858   

  
  
  
  
  
  
  
  
  
    
    
    
  
  
    
    
    
  
  
  
    
    
    
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
    
    
    
  
  
Less: comprehensive income (loss) attributable to 

non-controlling interests  

Comprehensive income (loss) attributable to 

stockholders 

973,562   

(3,205,680 )  10,472,499   

   $  2,266,736    $  (5,848,706 )  $ 20,040,359   

Earnings (loss) per share (note 21) – basic 

– diluted 

   $ 
   $ 

(0.02 )  $ 
(0.02 )  $ 

(0.16 )  $ 
(0.16 )  $ 

0.47   
0.46   

Weighted average number of shares of common stock 

outstanding 
– Basic  
– Diluted 

54,608,919   
54,608,919   

53,064,968   
53,064,968   

42,580,945   
42,975,007   

The accompanying notes are an integral part of these financial statements. 

F-6 

  
  
  
    
    
    
  
  
    
    
    
  
    
    
    
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Consolidated Statements of Changes in Equity 
(Expressed in U.S. Dollars) 

Accumulate
d 
other 
comprehens
ive 
income (fore
ign 

  Additional    translation    Statutory    earnings/     Total 
stockholder
s’ 

(accumulat
ed 

   Common stock     paid-in 
Amoun
   capital 
t 
   Shares    

  exchange n     surplus    
Adjustment
) 

   reserves     deficit) 

equity 

   Non- 
  controlling    Total 
   interest     Equity 

   Retained    

42,893,9

28   $ 

42,8

41,629,5

4,143,22

5,549,6

(1,651,5

49,713,7

7,185,34

94   $ 

06   $ 

5   $ 

84   $ 

34 ) $ 

75   $ 

56,899,1
24   

9   $ 

—    —    422,860   

—   

—   

—    422,860   

—    422,860   

   234,100   

234    697,086   

—   

—   

—    697,320   

—    697,320   

—    —    115,677   

—   

—   

—    115,677   

—    115,677   

—    —   

4,035   

—   

—   

—   

4,035   

—   

4,035   

buyback 
(note 16)   (542,767 )  (543 ) (335,288 ) 

—   

—   

—    (335,831 ) 

—    (335,831 ) 

Other 

compreh
ensive 
income 
(loss) 
- Other 

compreh
ensive 
income 
attributab
le to non-
controlli
ng 

—    —   

—   

—   

—   

—   

—   

17,502   

17,502   

Balance, 

Decemb
er 31, 
2008 

Stock-

based 
compens
ation 

Exercise of 
stock 
options 

Contributio
n from a 
former 
minority 
sharehol
der  

Subscriptio

ns 
received 
(note 16)   

Share 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
    
    
    
    
    
    
    
    
    
  
interest 

- Other 

compreh
ensive 
income 
attributab
le to 
stockhol
ders 

Net income 
for the 
year 

- Net 

income 
attributab
le to non-
controlli
ng 
interest     

- Net 

income 
attributab
le to 
stockhol
ders 

-Transfer to 
statutory 
surplus 
reserve 
(note 18)   

Dividend to 

non-
controlli
ng 
interest 

—    —   

—   

81,971   

—   

—   

81,971   

—   

81,971   

—    —   

—   

—   

—   

—   

10,454,99
7   

10,454,99
7   

—   

—    —   

—   

—   

19,958,38
8   

19,958,38
8   

—   

19,958,38
8   

—    —   

—   

4,313,56
7   

—   

(4,313,56

7 ) 

—   

—   

—   

—    —   

—   

—   

—   

—   

—   

(3,849,60

(3,849,60

1 ) 

1 ) 

Balance, 

Decemb
er 31, 
2009 

42,585,2

61   $ 

42,5

42,533,8

4,225,19

9,863,2

13,993,2

70,658,1

13,808,2

85   $ 

76   $ 

6   $ 

51   $ 

87   $ 

95   $ 

84,466,4
42   

47   $ 

The accompanying notes are an integral part of these financial statements. 

F-7 

  
  
  
    
    
    
    
    
    
    
    
    
  
    
    
    
    
    
    
    
    
    
  
    
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Consolidated Statement of Changes in Equity 
(Expressed in U.S. Dollars)  

Accumulate
d 
other 
comprehens
ive 
Income (for
eign 
   Additional    translation    Statutory    

   Common stock     paid-in 
Amoun
capital 
t 
   Shares    

  currency on    surplus     Retained    
  adjustment)    reserves     earnings    

   Total 
Stockholder
s’ 

equity 

   Non- 
  controlling    Total 
equity 
   interests    

Balance, 

Decemb
er 31, 
2009 

Stock-

based 
compens
ation 

42,585,

42,5

42,533,8

4,225,1

261   $     

85   $     

76   $     

9,863,2

51   $     

96   $     

13,993,

70,658,1

13,808,

287   $     

95   $     

247   $     

84,466,4
42   

—    —    459,901   

—   

—   

—    459,901   

—    459,901   

Exercise of 
stock 
options 
(note 
16) 

   220,700    221    409,734   

—   

—   

—    409,955   

—    409,955   

Issuance of 
new 
common 
stock 
(note 
16) 

Share 

issuance 
cost 

Non-

controlli
ng 
interest 
of 
Sinovac 
Dalian 
(note 15)   

Purchase 
addition
al 25% 
interest 
in 
Sinovac 
Dalian 

11,500,
000   

11,50
0   

66,113,50
0   

—   

—   

66,125,00
0   

—   

66,125,00
0   

—   

—    —   

(4,279,69

4 ) 

—   

—   

—   

(4,279,69

4 ) 

(4,279,69

4 ) 

—   

—    —   

—   

—   

—   

—   

20,477,4
16   

20,477,41
6   

—   

—    —   

—   

—   

—   

—   

(7,562,23

(7,562,23

7 ) 

7 ) 

—   

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
(note 
15) 

Equity 

adjustme
nt on 
acquisiti
on of 
addition
al 25% 
in 
Sinovac 
Dalian 
(note15)   

Other 

compreh
ensive 
income     

- Other 

compreh
ensive 
income 
attributa
ble to 
non-
controlli
ng 
interests   

- Other 

compreh
ensive 
income 
attributa
ble to 
stockhol
ders 

Net loss 
for the 
year 
- Net loss 
attributa
ble to 
non-
controlli
ng 
interests    

- Net loss 
attributa
ble to 
stockhol
ders 

Transfer to 
statutory 
surplus 

—    —   

(1,112,52

7 ) 

—   

—   

—   

(1,112,52

7 ) 

1,112,52
7   

—   

—    —   

27,392   

—   

—   

—   

27,392    861,587    888,979   

—    —   

—   2,658,638   

—   

—    2,658,638   

—    2,658,638   

—    —   

—   

—   

—   

—   

(4,094,65

(4,094,65

9 ) 

9 ) 

—   

—    —   

—    —   

—   

—   

—   

—   

(8,507,34

—   

(8,507,34

4 ) 

(8,507,34

4 ) 

—   

—   

—   

—   

4 ) 

9 ) 

(1,609,85

1,609,85
9   

  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
reserves 
(note 
18) 

Dividend 
distribut
ed to 
non-
controlli
ng 
interest 
of 
Sinovac 
Beijing    

Balance, 

Decemb
er 31, 
2010 

—    —   

—   

—   

—   

—   

(3,285,90

(3,285,90

2 ) 

2 ) 

—   

54,305,

54,3

104,152,

6,883,8

961   $     

06   $     

182   $     

11,473,

110   $     

34   $     

3,876,0

126,439,

21,316,

84   $     

516   $     

979   $     

147,756,
495   

The accompanying notes are an integral part of these financial statements. 

F-8 

  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Consolidated Statement of Changes in Equity 
(Expressed in U.S. Dollars)  

Accumulate
d 
other 
comprehens
ive 
income (for
eign 

   Additional     currency    

   Common stock     paid-in 
Amoun
capital 
t 
   Shares    

  translation    Dedicated    Retained    
  adjustment)    reserves     earnings    

   Total 
stockholder
s’ 

equity 

   Non- 
  controlling    Total 
equity 
   interests    

Balance, 

Decemb
er 31, 
2010 

Stock-

based 
compens
ation 

54,305,9

61   $   

54,3

06   $   

104,152,

182   $    

6,883,8

11,473,1

3,876,0

126,439,

21,316,9

34   $   

10   $   

84   $   

516   $   

147,756,
495   

79   $   

—    —    206,301   

—   

—   

—    206,301   

—    206,301   

Exercise of 
stock 
options 
(note 16)    468,000    468    748,332   

—   

—   

—    748,800   

—    748,800   

Subscriptio

ns 
received    

Equity 

adjustme
nt on 
acquisiti
on of an 
addition
al 1.53% 
in 
Sinovac 
Beijing 
(note 11)   

Other 

compreh
ensive 
income     

- Other 

compreh
ensive 
income 
attributa
ble to 
non-
controlli   

—    —   

3,360   

—   

—   

—   

3,360   

—   

3,360   

—    —    273,171   

(16,941 ) 

—   

—    256,230    (256,230 ) 

—   

—    —   

—   

—   

—   

     528,560    528,560   

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
    
ng 
interests 

- Other 

compreh
ensive 
income 
attributa
ble to 
stockhol
ders 

Net income 
for the 
year 

-Net 

income 
attributa
ble to 
non-
controlli
ng 
interest    

- Net loss 
attributa
ble to 
stockhol
ders 

Transfer to 
statutory 
surplus 
reserves    

Dividend 
distribut
ed to 
non-
controlli
ng 
interest     

—    —   

—   3,111,432   

—   

—    3,111,432   

—    3,111,432   

     445,002    445,002   

—    —   

—   

—   

—   

(844,69

6 )  (844,696 ) 

—    (844,696 ) 

—    —   

—   

—    335,161   

(335,16

1 ) 

—   

—   

—   

—    —   

—   

—   

—   

—   

(6,657,78

3 ) 

—   

(6,657,78

3 ) 

Balance, 

Decemb
er 31, 
2011 

54,773,9

61   $   

54,7

74   $   

105,383,

346   $    

9,978,3

11,808,2

2,696,2

129,920,

15,376,5

25   $   

71   $   

27   $   

943   $   

145,297,
471   

28   $   

The accompanying notes are an integral part of these financial statements. 

F-9 

  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
    
    
    
    
    
    
    
    
    
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Consolidated Statement of Cash Flows 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

Cash flows from (used in) operating activities 

Net income (loss) 
Adjustments to reconcile net income to net cash 

provided by operating activities: 

- deferred income taxes 
- stock-based compensation 
- inventory provision 
- provision for (recovery of) doubtful accounts 
- write-down of equipment and loss on disposal 
- research and development expenditures qualified for 

government grant 

- depreciation of property, plant and equipment and 

amortization of licenses and permits 

- deferred government grant recognized in income  
- accretion expenses 

Changes in: 

- accounts receivable 
- inventories 
- income tax payable  
- prepaid expenses and deposits 
- deferred revenue  
- accounts payable and accrued liabilities 

2011 

2010 

2009 

   $ 

(399,694 )  $ (12,602,003 )  $ 30,413,385   

2,845,195   
206,301   
4,034,169   
(166,865 ) 
454,973   

(1,708,489 ) 
459,901   
6,805,541   
1,921,493   
1,237,685   

1,261,823   
422,860   
593,451   
17,744   
169,678   

(686,258 ) 

(43,278 ) 

(251,436 ) 

4,825,613   
(432,543 ) 
377,410   

5,474,602   
(1,915,078 ) 
1,339,812   
(530,715 ) 
(2,695,943 ) 
1,204,647   

4,232,103   
(416,019 ) 
117,064   

2,239,139   
(1,119,054 ) 
—   

(5,019,696 ) 
1,003,642   
(5,384,946 ) 
(8,597,440 ) 
6,758,750   
(5,524,628 ) 
(903,696 ) 
468,782   
426,040    12,722,284   
5,118,740   
(686,461 ) 

Net cash provided by (used in) operating activities 

13,935,626   

(14,278,545 )  48,411,504   

Cash flows from financing activities 
- Loan proceeds 
- Loan repayments 
- Proceeds from issuance of common stock, net of share 

issuance costs 

- Repurchase of common shares 
- Proceeds from shares subscribed  
- Dividends paid to non-controlling shareholder of 

Sinovac Beijing 

- Government grants received  
- Repayment from (loan to) non-controlling shareholder 

of Sinovac Beijing  

11,391,836   
(10,658,840 ) 

19,989,083    17,687,473   
(17,850,030 )  (10,232,422 ) 

748,800   
—   
3,360   

62,255,261   
—   
—   

697,320   
(335,831 ) 
4,035   

(5,862,676 ) 
1,592,925   

(3,285,902 )   (3,846,501 ) 
1,318,857   

372,012   

3,397,522   

(3,286,695 ) 

—   

Net cash provided by financing activities 

612,927   

58,193,729   

5,292,931   

Cash flows used in investing activities 

- Restricted cash  
- Proceeds from disposal of equipment 
- Proceeds from redemption of short-term investments   
- Purchase of short-term investments 
- Prepayments for acquisition of equipment 
- Acquisition of property, plant and equipment 

—   
122,089   
1,544,759   
—   
(467,183 ) 
(14,989,876 ) 

64,400   
231,606   
7,314,187   
(1,475,209 ) 
(562,043 ) 
(24,817,168 ) 

(64,400 ) 
—   
—   
(7,308,873 ) 
—   
(4,320,065 ) 

Net cash used in investing activities 

(13,790,211 ) 

(19,244,227 )  (11,693,338 ) 

  
  
  
  
  
  
  
  
  
    
    
    
  
    
    
    
  
    
    
    
  
  
  
  
  
  
  
  
  
  
    
    
    
  
  
  
  
  
  
  
  
    
    
    
  
  
  
    
    
    
  
    
    
    
  
  
  
  
  
  
  
  
  
  
    
    
    
  
  
  
    
    
    
  
    
    
    
  
  
  
  
  
  
  
    
    
    
  
  
  
    
    
    
Exchange gain on cash and cash equivalents 

1,942,863   

1,961,321   

48,013   

Increase in cash and cash equivalents 

2,701,205   

26,632,278    42,059,110   

Cash and cash equivalents, beginning of year 

101,585,490   

74,953,212    32,894,102   

Cash and cash equivalents, end of year 

   $ 104,286,695    $ 101,585,490    $ 74,953,212   

Supplemental disclosure of cash flow information: 
Cash paid for interest, net of amount capitalized 
Cash paid for income taxes 

   $ 
   $ 

455,851    $  1,017,502    $  914,546   
881,596    $  5,986,249    $  3,066,447   

Supplemental schedule of non-cash activities:  

Acquisition of property, plant and equipment included 

in accounts payable and accrued liabilities 

   $  9,124,751     $  3,958,740     $  1,120,330   

The accompanying notes are an integral part of these financial statements. 

F-10 

  
  
  
    
    
    
  
  
  
    
    
    
  
  
  
    
    
    
  
  
    
    
    
  
    
    
    
  
  
    
    
    
  
    
    
    
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

1.                              Basis of Presentation 

The consolidated financial statements have been prepared in conformity with United States 
generally accepted accounting principles (―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 
October 2008    

Place of 
incorporation 
(or 
establishment) 
/operation 
Hong Kong    

Percentage of 
ownership as 
of December 
31, 2011 
100% 

Percentage 
of ownership 
as of 
December 
31, 2010 
100% 

April 2001 

PRC 

73.09% 

71.56% 

February 1993    

PRC 

100% 

100% 

May 2009 

PRC 

100% 

100% 

January 2010    

PRC 

55% 

55% 

Principal activity 

Sales of vaccine 
products 

Research and 
development, 
production and 
sales of vaccine 
products 

Research and 
development, 
production and 
sales of vaccine 
products 

Research and 
development of 
vaccine products 

Research and 
development, 
production and 
sales of vaccine 
products 

Name 
Sinovac Biotech 
(Hong Kong) Ltd 
(―Sinovac Hong 
Kong‖) 

Sinovac Biotech 
Co., Ltd. 
(―Sinovac 
Beijing‖) (note 
11) 

Tangshan Yian 
Biological 
Engineering Co., 
Ltd (―Tangshan 
Yian‖) 

Sinovac 
Biological 
Technology 
Co., Ltd. 
(―Sinovac 
R&D‖)  

Sinovac (Dalian) 
Vaccine 
Technology 
Co., Ltd. 
(―Sinovac 
Dalian‖) (notes 
11 and 15) 

Ownership in the subsidiaries located in the People’s Republic of China (―PRC‖ or ―China‖), as 
well as licenses and permits, involve certain inherent risks due to the complexity of the 
governmental rules in China.  Such ownership could be challenged by PRC government 
authorities.  Each of these matters is subject to uncertainty, and it is possible that some of these 
matters may result in unfavorable outcome for the Company. 

F-11 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies 

(a)                               Use of Estimates 

In preparing 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 provision, useful lives of 
amortizable intangible assets, 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 with maturities of three months or less when purchased. Cash equivalents as of 
December 31, 2011 and 2010 are short-term deposits and investments with banks 
with original maturities of three months or less. 

(c)                                Short-term Investments 

Short-term investments are classified as being available-for-sale and are reported at 
fair value with all unrealized gains and temporary unrealized losses recognized in 
other comprehensive income. Other-than-temporary credit losses that represent a 
decrease in the cash flows expected to be collected on the short-term investments are 
recognized in net income (loss). Related fees and costs are recorded in consolidated 
statements of income when they are incurred. 

(d)                               Accounts Receivable 

The Company extends unsecured credit to its customers in the ordinary course of 
business but mitigates the associated risks by performing credit checks and actively 
pursuing past due accounts. The Company determines the allowance based on known 
troubled accounts, 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. 

(e)                                Inventories 

Inventories are stated at the lower of cost or replacement cost with respect to raw 
materials and the lower of cost and net realizable value with respect to finished goods 
and work in progress. Cost of work in progress and finished goods is generally 
determined on weighted average cost basis and includes direct material, direct labour 
and overhead. Net realizable value represents the anticipated selling price less 
estimated costs of completion and distribution. 

F-12 

  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

(f)                                 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 uses 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 included in 
operating income (loss). 

Depreciation of property, plant and equipment generally is computed using the 
straight-line method based on the estimated useful lives of the assets as follows: 

30 years 
term of leases, ranging from 28 to 49 years 
5 to 10 years 

Plant and building 
Land-use rights 
Machinery and 
equipment 
Motor vehicles 
Office equipment and 
furniture 
Leasehold improvement    Lesser of useful lives and term of lease 

5 years 
3 to 5 years 

(g)                                Licenses and Permits 

The Company capitalizes the patent payment and the purchase cost of vaccines if the 
vaccine has received a new drug certificate from the State Food and Drug 
Administration (―SFDA‖) of China. If the vaccine has not received a new drug 
certificate, the purchase cost is expensed as in-process research and development. 

Licenses and permits, in relation to the production and sales of pharmaceutical 
products, are amortized on a straight-line basis over their respective useful lives, 
which are estimated to be 10 years for inactivated hepatitis A and recombinant 
hepatitis A&B licenses and 20 years for H5N1 license. Useful lives of licenses and 
permits are subject to the uncertainties described in note 1. 

F-13 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

(h)                               Impairment of Long-Lived Assets 

Long-lived assets including intangible assets subject to amortization are reviewed for 
impairment whenever events or changes in circumstances indicate that the carrying 
value of the asset may not be recoverable from the future undiscounted net cash 
flows expected to be generated by the asset.  If the asset is not fully recoverable, an 
impairment loss would be recognized for the difference between the carrying value of 
the asset and its estimated fair value based on discounted net future cash flows. There 
were no impairment adjustments to the carrying value of the long-lived assets for the 
years ended December 31, 2011, 2010 and 2009. 

(i)                                  Income Taxes 

The Company recognizes deferred tax liabilities and assets for the expected future tax 
consequences of events that have been recognized in the Company’s financial 
statements or tax returns using the liability method.  Under this method, deferred tax 
liabilities and assets are determined based on the temporary differences between the 
financial statements 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 for the portion of deferred tax assets that is more likely than 
not to remain unrealized. Deferred tax assets and liabilities are measured using 
enacted tax rates and laws. 

On January 1, 2007, the Company adopted the guidance issued by the Financial 
Accounting Standards Board (―FASB‖) ―Accounting for Uncertainty in Income 
Taxes — an interpretation of FASB Statement No. 109 (―FIN 48‖), codified in the 
FASB Accounting Standards Codification (―ASC‖) 740, Income Taxes. ASC 740 
prescribes a more-likely—than-not threshold for financial statement recognition and 
measurement of a tax position taken or expected to be taken in a tax return. ASC 740 
also provides guidance on the recognition and derecognition of income tax assets and 
liabilities; classification of current and deferred income tax assets and liabilities 
accounting for interest and penalties associated with tax positions; accounting for 
income taxes in interim periods and income tax disclosures. 

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. Liabilities associated with 
uncertain tax positions are classified as long-term unless expected to be paid 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 sheet. 

F-14 

  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

The Company has reviewed the tax positions taken, or to be taken, in its tax return 
for all tax years currently open to examination by a taxing authority in accordance 
with the recognition and measurement standards of ASC 740. The Company is not 
under examination by any authority for income tax purposes and has not applied any 
income tax filing extension. 

The Company is not subject to taxation in the U.S. The Company’s taxing 
jurisdiction is Antigua and Barbuda. Sinovac Hong Kong’s taxing jurisdiction is 
Hong Kong. Sinovac Canada has had no transactions/activities since inception. The 
Company’s four subsidiaries, Sinovac Beijing, Tangshan Yian, Sinovac R&D and 
Sinovac Dalian’s taxing jurisdiction is China. Income tax returns filed by the 
Company and its active subsidiaries that are subject to examination are Sinovac 
Beijing and Tangshan Yian for the years since 2004 and Sinovac R&D and Sinovac 
Dalian for the year since 2010. 

(j)                                  Value-added Taxes 

Value-added taxes collected from customers relating to product sales and remitted to 
governmental authorities are presented on a net basis. Value-added taxes collected 
from customers are excluded from revenue. 

(k)                                 Revenue Recognition 

Sales revenue is recognized when persuasive evidence of an arrangement exists, the 
price is fixed and determinable, delivery has occurred and there is a reasonable 
assurance of collection of the sales proceeds. The Company generally obtains 
purchase authorizations from its customers for a specified amount of products at a 
specified price and considers delivery to have occurred when the customer takes title 
of the products.  The Company provides its customers with a limited right of return. 
The product return provision for seasonal influenza vaccine at year end is estimated 
based on actual sales returns because the returned products are known by the end of 
the flu season which is generally end of March. As of December 31, 2011, reserves 
for seasonal influenza vaccine returns are approximately $1 million (December 31, 
2010 - $3.2 million). The product return provisions for inactivated hepatitis A 
vaccine and combined inactivated hepatitis A&B vaccine are estimated based on 
historical return and exchange levels, external data with respect to inventory levels as 
well as the remaining shelf lives of the products in the distribution channel. As of 
December 31, 2011, reserves for inactivated hepatitis A vaccine and combined 
inactivated hepatitis A&B vaccine returns are $1.7 million (December 31, 2010 - 
$2.6 million). Sales return provision on inactivated hepatitis A and combined 
inactivated hepatitis A&B represents 8.3% and 16% of private pay market sales in 
2011 and 2010, respectively. For H1N1 and H5N1 vaccines, customers do not have a 
right of return. 

Deferred revenue is generally relating to government stockpiling programs and 
advances received from customers. For government stockpiling programs, the 
Company generally obtains purchase authorizations from the government for a 
specified amount of products at a specified price and revenue is recognized when the 
government takes delivery of the products. If the products expire prior to delivery, 

  
  
  
  
  
  
  
  
  
revenue related to these expired products is recognized once cash has been received 
and the products have expired and passed government inspection. 

F-15 

  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

(l)                                   Shipping and Handling 

Shipping and handling fees billed to customers are included in sales. Costs related to 
shipping and handling are part of selling expenses in the consolidated statements of 
income (loss). In 2011, $1,197,272 (2010 - $1,051,791; 2009 - $1,387,766) related to 
shipping and handling costs was included in selling expenses in the consolidated 
statements of income (loss). 

(m)                           Advertising Expenses 

Advertising costs are expensed as incurred and included in selling expenses. 
Advertising costs were $11,973 for the year ended December 31, 2011 (2010 - 
$39,615; 2009 - $67,614). 

(n)                               Research and Development 

Research and development costs are charged to operations as incurred and are listed 
as a separate line item on the Company’s consolidated statements of income (loss). 

(o)                               Government Grants 

Government grants are received from the PRC government by the operating 
subsidiaries of the Company. Government grants for reimbursement of research and 
development expenses are taken into income in the period in which the expenses are 
incurred and the conditions imposed by the government authorities are fulfilled. 
Government grants for research and development recognized are recorded as 
reduction to research and development expenses and classified as operating income 
in the Company’s consolidated statements of income (loss). Government grants for 
building production facilities are deferred and recognized in income in the same 
manner as the production facilities are amortized. Interest subsidies are recorded as 
reduction to interest expenses in the Company’s consolidated statements of income 
(loss) or recorded as reduction to interest capitalized if the subsidies granted are 
related to a specific borrowing associated with building a qualifying asset. Other 
incentives received from local government to encourage expansion of local 
businesses are recognized in operating income. Government grants are recognized 
when there is reasonable assurance that the amount is receivable and all the 
conditions specified in the grant have been met. 

F-16 

  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

(p)                               Foreign Currency Transaction 

The Company and its active subsidiaries maintain their accounting records in their 
functional currencies, U.S. dollars and Renminbi Yuan (―RMB‖), respectively. The 
Company translates foreign currency transactions into its functional currency in the 
following manner: 

At the transaction date, each asset, liability, revenue and expense is translated into the 
functional currency by the use of the exchange rate in effect at that date.  At the 
period end, foreign currency monetary assets, and liabilities are re-evaluated 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 operations. 

The assets and liabilities of the foreign subsidiaries, Sinovac Beijing, Tangshan Yian, 
Sinovac R&D, and Sinovac Dalian are translated into U.S. dollars at exchange rates 
in effect at the balance sheet date.  Revenue and expenses are translated at average 
exchange rate.  Gain and losses from such translations are included in stockholders’ 
equity as a component of other comprehensive income. 

(q)                               Stock-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 fair value for the 
awards.  The value of the portion of the award that is ultimately expected to vest is 
recognized on a straight-line basis as expense over the requisite service period in the 
consolidated statements of income (loss). 

(r)                                  Comprehensive Income 

The Company’s comprehensive income consists of net earnings and foreign currency 
translation adjustments. 

(s)                                 Earnings Per Share 

Earnings per share (―EPS‖) are calculated in accordance with FASB guidance 
codified in ASC 260, Earnings per Share. Basic earnings per share are computed by 
dividing the net income available to common stockholders 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 of options. 

F-17 

  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

(t)                                  Financial Instruments and Concentration of Credit Risks 

Fair Value of Financial Instruments 

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, 2011 and 2010, the Company did not have any Level 3 financial 
assets. As of December 31, 2010, the Company’s Level 2 financial assets were short-
term investments measured at fair value. As of December 31, 2011 and 2010, the 
Company did not have financial liabilities measured at fair value on a recurring basis. 

The fair values of financial instruments are estimated at a specific point in time, 
based on relevant information about financial markets and specific financial 
instruments.  As these estimates are subjective in nature, involving uncertainties and 
matters of significant judgment, they cannot be determined with precision. Changes 
in assumptions can significantly affect estimated fair values. 

The carrying values of cash and cash equivalents, short-term investments, accounts 
receivable, short-term loans payable, accounts payable and accrued liabilities, and 
due from related parties approximate their fair value because of their short term 
nature.  The fair values of loans payable and long-term payable for acquisition of 
assets are based on the estimated discounted value of future contractual cash flows 
which approximate their fair value as they have variable interest rates adjusted every 
12 months. The discount rate is estimated using the rates currently offered for debt 
with similar remaining maturities. 

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 
US dollars and the Chinese RMB. In 2011, foreign exchange gain of $294,653 (2010 
— loss of $209,958; 2009 — loss of $8,880) is included in selling, general and 
administrative expenses. As at December 31, 2011, cash and cash equivalents of 
$80,191,109 (RMB 510,392,021) (December 31, 2010 — $46,420,594 (RMB 

  
  
  
  
  
  
  
  
  
  
  
  
  
306,923,681); December 31, 2009 — $64,993,822 (RMB 444,362,763)) are 
denominated in RMB and are held in PRC and Hong Kong. 

F-18 

  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

Concentration of Credit Risks 

Financial instruments that potentially subject the Company to concentration of credit 
risks consist primarily of cash and cash equivalents, accounts receivable, and short-
term investments, the balances of which are stated on the consolidated balance sheets 
which represents the Company’s maximum exposure. The Company places its cash 
and cash equivalents in high credit quality financial institutions. Concentration of 
credit risks with respect to accounts receivables is linked to the concentration of 
revenue. The Company’s customers are various government agencies in China. No 
single customer accounted for more than 10% of total sales for the years ended 
December 31, 2011, 2010 and 2009 except for government stockpile purchases (note 
22). To manage credit risk, the Company performs ongoing credit evaluations of 
customers’ financial condition. The Company does not require collateral or other 
security to support financial instruments subject to credit risks. 

Interest Rate Risks 

The Company is subject to interest rate risk.  The interest-bearing loans are short-
term or at variable rate based on the respective bank’s primary lending rate (note 9). 

(u)                                 Recently Adopted Accounting Standards 

Effective January 1, 2011, the Company adopted Accounting Standard Update 
(―ASU‖) 2009-13, which amends ASC 605 Revenue Recognitions, Multiple-
Deliverable Revenue Arrangements. The amendments require an entity to allocate 
arrangement consideration at the inception of the arrangement to all of its 
deliverables based on relative selling prices. The guidance eliminates the use of the 
residual method of allocation and expands the ongoing disclosure requirements. The 
adoption of this guidance did not have a material effect on the Company’s 
consolidated financial statements. 

Effective January 1, 2011, the Company adopted ASU 2010-13, which amends ASC 
718 Compensation — Stock Compensation, Effect of Denominating the Exercise 
Price of a Share-Based Payment Award in the Currency of the Market in Which the 
Underlying Equity Security Trades. The amendments clarify that a share-based 
payment award with an exercise price denominated in the currency of a market in 
which a substantial portion of the entity’s equity securities trades shall not be 
considered to contain a market, performance, or service condition. Therefore, such an 
award is not to be classified as a liability if it otherwise qualifies as equity 
classification. The amendments are effective for fiscal year beginning on or after 
December 15, 2010, with early adoption permitted. The adoption of this guidance did 
not have a material effect on the Company’s consolidated financial statements. 

F-19 

  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

Effective January 1, 2011, the Company adopted ASU 2010-17, which amends ASC 
605, Revenue Recognition, Milestone Method of Revenue Recognition. The 
amendments provide guidance on defining a milestone under ASC 605 and 
determining when it may be appropriate to apply the milestone method of revenue 
recognition for research or development transactions. The amendments are effective 
for fiscal year beginning on or after June 15, 2010, with early adoption permitted. 
The adoption of this guidance did not have a material effect on the Company’s 
consolidated financial statements. 

Effective January 1, 2011, the Company adopted ASU 2010-29, which amends ASC 
805, Business Combinations, Disclosure of Supplementary Pro Forma Information 
for Business Combinations. The ASU clarifies that if comparative financial 
statements are presented, the pro forma disclosures for both periods presented should 
be reported as if the acquisition had occurred as of the beginning of the comparable 
prior annual reporting period only and not as if it had occurred at the beginning of the 
current annual reporting period. The ASU also expands the supplemental pro forma 
disclosure requirements to include a description of the nature and amount of any 
material non-recurring adjustments that are directly attributable to the business 
combination. The guidance in the ASU is effective for business combinations for 
which the acquisition date is on or after the beginning of the first annual reporting 
period beginning on or after December 15, 2010, and should be applied prospectively. 
The adoption of this guidance did not have a material effect on the Company’s 
consolidated financial statements. 

F-20 

  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

2.                                      Significant Accounting Policies (continued) 

(v)         Recently Issued Accounting Guidance, Not Adopted as of December 31, 2011 

In May 2011, the FASB issued ASU 2011-4, which amends the fair value 
measurement and disclosure guidance in ASC 820, Fair Value Measurement, to 
converge US GAAP and IFRS requirements for measuring amounts at fair value as 
well as disclosures about these measurements. The amendments are effective for 
fiscal year beginning on or after December 15, 2011. The Company is currently 
evaluating the effect that the adoption of this guidance will have on its consolidated 
financial statements. 

In June 2011, the FASB issued ASU 2011-5, which amends the presentation 
guidance in ASC 220, Comprehensive Income, and will result in more converged 
guidance on how comprehensive income is presented under US GAAP and IFRS, 
although some differences remain. The new US GAAP guidance gives companies 
two choices of how to present items of net income, items of other comprehensive 
income or separate consecutive statements. Companies will no longer be allowed to 
present OCI in the statement of stockholders’ equity. Earnings per share would 
continue to be based on the net income. Although existing guidance related to items 
that must be presented in other comprehensive income (―OCI‖) has not changed, 
companies will be required to display reclassification adjustments for each 
component of OCI in both net income and OCI. Also companies will need to present 
the components of other comprehensive income in their interim and annual financial 
statements. The amendments are effective for fiscal year beginning on or after 
December 15, 2011. In December 2011, the FASB issued ASU 2011-12, which 
defers ASU 2011-05 requirement that companies present reclassification adjustments 
for each component of accumulated other comprehensive income (―AOCI‖) in both 
net income and OCI on the face of the financial statements. Companies are still 
required to present reclassifications out of AOCI on the face of the financial 
statements or disclose those amounts in the notes to the financial statements. The 
ASU also defers the requirement to report reclassification adjustments in interim 
periods. The Company is currently evaluating the effect that the adoption of this 
guidance will have on its consolidated financial statements. 

In December 2011, the FASB issued ASU 2011-11, which amends the disclosure 
guidance in ASC 210, Balance Sheet. New disclosures are required to enable users of 
financial statements to understand significant quantitative differences in balance 
sheets prepared under US GAAP and IFRS related to the offsetting of financial 
instruments. The existing US GAAP guidance allowing balance sheet offsetting, 
including industry-specific guidance, remains unchanged. The amendments are 
effective for annual reporting periods beginning on or after January 1, 2013, and 
interim periods within those annual periods. The amendments should be applied 
retrospectively for all prior periods presented. 

(w)       Comparative Figures 

Certain comparative figures have been reclassified in order to conform with the 
presentation adopted in the current year. 

F-21 

  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

3.                                      Short-term Investments 

   December 31,     December 31,    

2011 

2010 

Commercial paper with a term of 7 days, payable or 
renewable on any weekday, bearing maximum 
interest at 3.2% per year 

Short-term investments 

4.                                      Accounts Receivable - net 

—    $  1,512,447   

—    $  1,512,447   

Trade receivables (note 9) 
Allowance for doubtful accounts 

Other receivables 
Total accounts receivable 

   December 31,     December 31,    

2011 

2010 

(3,927,914 ) 

   $ 20,779,992    $ 26,208,393   
(4,212,922 ) 
   $ 16,852,078    $ 21,995,471   
374,825   
   $ 17,834,407    $ 22,370,296   

982,329   

Accounts receivable with a carrying value of $5.5 million (RMB 35 million) were pledged as 
collateral for a bank loan (note 9). 

The allowance for doubtful accounts reflects the Company’s best estimate of probable losses 
inherent in the accounts receivable balance. The Company determines the allowance based on 
known troubled accounts, 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 records its allowance for doubtful 
accounts based upon its assessment of various factors. As of December 31, 2011, the 
Company provided 100% allowance for accounts aged more than two years, approximately 55% 
allowance for accounts receivable aged between one year and two years, and approximately 6% 
allowance for accounts receivable aged less than one year. 

F-22 

  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

4.                                      Accounts Receivable — net (continued) 

The Company’s maximum exposure to credit risk at the balance sheet date relating to trade 
receivables is summarized as follows: 

   December 31,     December 31,    

2011 

2010 

Aging within one year, net of allowance for doubtful 

accounts 

   $ 16,025,464    $ 19,745,688   

Aging greater than one year, net of allowance for doubtful 

accounts 

Total trade receivables 

826,614   

2,249,783   
   $ 16,852,078    $ 21,995,471   

5.                                      Inventories 

Raw materials 
Work in progress  
Finished goods  
Inventories 

   December 31,     December 31,    

2011 

2010 

   $  3,230,727    $  1,176,209   
632,911   
12,732,434   
   $  8,113,428    $ 14,541,554   

446,468   
4,436,233   

For the year ended December 31, 2011, the Company charged $1,205,179 (2010 – $297,623; 
2009 – $187,442) of excessive fixed production overhead to cost of sales. 

In 2011, 2010 and 2009, cost of sales included provision of $4,034,169, $6,805,541, and 
$593,451, respectively for the estimated value of inventory likely to expire before being sold. 

6.                                      Long-term Inventories 

Long-term inventories represent H5N1 with remaining shelf lives over one year and H1N1 
vaccines expired but government inspection has not been completed. These vaccines are for 
government stockpiling purpose. 

   December 31,     December 31,    

2011 

2010 

Work in progress 
Finished goods  
Long-term inventories 

F-23 

   $ 

—    $  317,857   
77,659   
   $  5,248,237    $  395,516   

5,248,237   

  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

7.                                      Property, Plant and Equipment 

Construction in progress 
Plant and building 
Land-use rights 
Machinery and equipment 
Motor vehicles 
Office equipment and furniture 
Leasehold improvement 
Total 

Construction in progress 
Plant and building 
Land-use rights 
Machinery and equipment 
Motor vehicles 
Office equipment and furniture 
Leasehold improvement 
Total 

December 31, 2011 
   Accumulated    
   Depreciation    

Net book 
Value 

Cost 
   $ 22,341,627    $ 
23,902,926   
11,639,714   
26,178,326   
1,842,370   
2,083,117   
3,658,617   

—    $ 22,341,627   
20,529,782   
10,960,210   
17,438,449   
736,585   
1,181,803   
2,439,425   
   $ 91,646,697    $ 16,018,816    $ 75,627,881   

3,373,144   
679,504   
8,739,877   
1,105,785   
901,314   
1,219,192   

December 31, 2010 
   Accumulated    
   Depreciation    

Net book 
Value 

Cost 
   $ 11,421,734    $ 
22,274,540   
11,204,708   
22,912,867   
1,773,515   
2,022,351   
3,521,885   

—    $ 11,421,734   
19,920,039   
10,809,221   
16,742,880   
1,082,583   
1,390,292   
2,669,479   
   $ 75,131,600    $ 11,095,372    $ 64,036,228   

2,354,501   
395,487   
6,169,987   
690,932   
632,059   
852,406   

Land and building of Changping facilities of Sinovac Beijing with a net book value of $7.38 
million (RMB 46.97 million) was pledged as collateral (note 9) for a bank loan from China 
Construction Bank. 

Plant and building of Sinovac Beijing with a net book value of $3.4 million (RMB 21.5 
million) was pledged as collateral (note 9) for a bank loan from Bank of Beijing. 

Depreciation expense in 2011, 2010 and 2009 was $4,557,268, $3,685,480 and $1,841,261 
respectively. 

As at December 31, 2011, the accounts payable and accrued liabilities included $9,124,751 
(December 31, 2010 - $3,958,740) for purchasing plant, property and equipment. 

Loss on disposal and write down of equipment in 2011, 2010 and 2009 was $454,973, 
$1,237,685 and $169,678, respectively. 

F-24 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

8.                                      Licenses and Permits 

Inactivated hepatitis A 
Combined inactivated hepatitis A&B 
H5N1 licenses (note 23 (c)) 
Total 

Inactivated hepatitis A 
Combined inactivated hepatitis A&B 
H5N1 licenses (note 23 (c)) 
Total 

December 31, 2011 
   Accumulated    
   amortization    

Net book 
value 

Cost 

   $  3,319,347    $  3,319,347    $ 

—   
144,397   
1,191,857   
   $  5,241,335    $  3,905,081    $  1,336,254   

477,313   
1,444,675   

332,916   
252,818   

Cost 

December 31, 2010 
   Accumulated   
   amortization    
   $ 3,195,295    $ 3,073,516    $  121,779   
185,335   
1,041,250   
   $ 4,844,770    $ 3,496,406    $ 1,348,364   

459,475   
1,190,000   

274,140   
148,750   

Net book    
value 

(a)                                  Amortization expense for the licenses and permits was $268,345, $546,623 and 
$397,878 for the years ended December 31, 2011, 2010 and 2009, respectively. 

(b)                                The estimated amortization expenses for the remaining useful lives are as follows: 

2012 
2013 
2014 
2015 
2016 
Thereafter 
Total 

   $ 

 120,000   
120,000   
120,000   
72,000   
72,000   
832,254   
   $  1,336,254   

The above amortization expense forecast is an estimate. Actual amounts of 
amortization expense may differ from estimated amounts due to additional intangible 
asset acquisitions, changes in foreign currency exchange rates, impairment of licenses 
and permits, and other events. 

(c)                                  See note 1 regarding risks and uncertainties associated with licenses and permits. 

F-25 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

9.                                      Loans   Payable 

Bank loan (China Merchants Bank): RMB 10 million, bearing 

interest at 5.56% per year, interest is payable quarterly and the 
principal is payable on December 22, 2011.The loan was 
repaid on December 22, 2011. 

Bank loan (China Merchants Bank): RMB 10 million, bearing 
interest at 20% above the prime rate of a one-year term loan 
published by the People’s Bank of China, currently at 7.872% 
per year. Interest is payable quarterly and the principal is 
payable on December 21, 2012. The loan agreement is under a 
general credit facility agreement with the same bank with a 
limit of RMB 30 million for the period from December 22, 
2011 to December 21, 2012.  

Bank loan (Industrial and Commercial Bank of China Limited): 
RMB 50 million, bearing interest at Bank of China’s prime 
rate for loans of nine months to one year plus 1.04% per year. 
Interest is payable monthly and the principal is payable on 
December 7, 2011. The loan was collateralized by the trade 
receivables of Sinovac Beijing with a carrying value of RMB 
80 million. The loan was repaid on December 7, 2011. 

Bank loan (Industrial and Commercial Bank of China Limited): 

RMB 20 million, bearing interest at 10% above Bank of 
China’s prime rate for loans of six months to one year plus 
1.456% of financing fee per year, currently at 8.672% per 
year. Interest is payable monthly and the principal is payable 
on December 21, 2012. The loan is guaranteed by an unrelated 
third party, with a guarantee fee of $63,000 (RMB 400,000) 
over the term of the loan and the trade receivables of Sinovac 
Beijing with a carrying value of not lower than RMB 35 
million is pledged to the guarantee company.  

Bank loan (Bank of China): RMB 9 million, bearing interest at 
5.31% per year, interest is payable quarterly and the principal 
is repayable on April 5, 2011. The loan is exclusively for 
H1N1 working capital. Subject to the terms and conditions 
pursuant to the agreement, Sinovac Beijing is required to 
maintain a debt to asset ratio less than 90% and daily balance 
of cash and cash equivalents not less than RMB 50 million. 
The loan was repaid on April 2, 2011. 

Loans payable — current-term 

F-26 

   December 31,     December 31,    

2011 

2010 

   $ 

—    $  1,512,447   

1,571,166   

—   

—   

7,562,237   

3,142,332   

—   

1,361,203   
—   
   $  4,713,498    $ 10,435,887   

  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

9.                                      Loans   Payable  (continued) 

Bank loan (China Construction Bank): RMB 76.5 million 

   December 31,     December 31,    

2011 

2010 

   $ 12,019,420    $ 10,057,775   

(December 31, 2010 — RMB 66.5 million), bearing interest at 
the bank’s prime lending rate and adjusted every 12 months, 
currently at 6.9% per year. The loan is exclusively for the 
purchase of the Changping facility. Interest is payable 
monthly. The total amount of the loan is $14.14 million (RMB 
90 million) and is advanced to the Company in six installments 
according to the agreement. Land and building of the 
Changping facility of Sinovac Beijing with a net book value of 
$7.38 million (RMB 46.97 million) was pledged as collateral. 
The entire principal amount is payable on February 9, 2015.  
Bank loan (Bank of Beijing): RMB 33,745,050 bearing interest at 
the bank’s prime lending rate and adjusted every 12 months, 
currently at 6.9% per year. Interest is payable quarterly. The 
loan is for construction of the Changping facility and has a 
maximum credit amount of RMB 200 million. The loan is 
repayable on November 13, 2015. The Company also obtained 
a credit with a maximum quota for issuing letter of credits of 
RMB 80 million with the same bank. Plant and building of 
Sinovac Beijing with a net book value of $3.4 million (RMB 
21.5 million) was pledged as collateral. 

5,301,907   

—   

Loans payable — long-term 

   $ 17,321,327    $ 10,057,775   

The weighted average effective interest rate was 6.71% and 5.56% in 2011 and 2010, 
respectively. In 2011, 2010, and 2009, the Company incurred $1,439,743, $1,163,551 and 
$914,546 interest costs, respectively, of which $251,891 (net of $711,738 loan interest 
subsidies received) (2010 - $nil and 2009 - $nil) have been capitalized in property, plant and 
equipment. 

F-27 

  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

10.                               Income Taxes 

Sinovac Beijing, Tangshan Yian, Sinovac R&D and Sinovac Dalian are subject to income 
taxes in China on their taxable income as reported in their statutory accounts at a tax rate in 
accordance with the relevant income tax laws applicable to foreign investment enterprises. 

On January 1, 2008, ―The Law of the People’s Republic of China on Enterprise Income Tax‖ 
(the ―Enterprise Income Tax Law‖) became effective. This Enterprise Income Tax Law 
eliminated the previous preferential tax treatment that was available to the foreign invested 
enterprises (―FIEs‖) but provided grandfathering of the preferential tax treatment currently 
enjoyed by the FIEs.  Under the Enterprise Income Tax Law, both domestic companies and 
FIEs are subject to an unified income tax rate of 25%. Sinovac Beijing reconfirmed its ―High 
and New Technology Enterprise‖ (―HNTE‖) status according to the new criteria and obtained 
the certificate on September 19, 2011. Sinovac Beijing qualifies for preferential income tax 
rate of 15% from 2011 to 2013.  The income tax rate will need to be reviewed every three 
years thereafter depending on whether or not Sinovac Beijing is in compliance with the ―High 
and New Technology Enterprise‖ criteria. Tangshan Yian is subject to a 25% income tax rate 
but is subject to a preferential exemption from income taxes for two years and a 50% 
reduction in income taxes for the three years from 2008 to 2013. The unified income tax rate 
of 25% is also applicable to Sinovac R&D and Sinovac Dalian until they obtain HNTE 
certificates. 

The Enterprise Income Tax Law provides that, if an enterprise incorporated outside the PRC 
has its ―de facto management organization‖ located within the PRC, such enterprise may be 
recognized as a PRC tax resident enterprise and thus may be subject to enterprise income tax 
at the rate of 25% on its worldwide income. Under the Implementation Rules of the 
Enterprises Income Tax Law, ―de facto management organization‖ means the organization 
which is essentially in charge of overall management and control with respect to the operation, 
personnel, books and accounts, and assets of the enterprise in question. As substantially all 
members of the management continue to be located in the PRC, the Company may be deemed 
a PRC tax resident enterprise and therefore be subject to an enterprise income tax rate of 25% 
on its worldwide income. The dividends that the Company receives from its PRC subsidiaries 
would be exempt from PRC withholding tax but be subject to income tax at 25% if the 
Company is recognized as a PRC tax resident. 

If Sinovac Beijing had not been subject to the beneficial tax rate described above, the income 
tax expenses (net of non-controlling interest) would have been increased (decreased) by 
approximately $521,155 (RMB 3,373,697), ($2,545,830) (RMB17,254,418) and $2,622,861 
(RMB 17,942,992), for the years ended December 31, 2011, 2010 and 2009, 
respectively.  Basic earnings (losses) per common share would have been approximately 
($0.03), ($0.11), $0.41, and diluted earnings (losses) per common share would have been 
($0.03), ($0.11), $0.40 for the years ended December 31, 2011, 2010 and 2009, respectively. 

F-28 

  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

10.                               Income Taxes (continued) 

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 are subject 
to withholding tax at a rate of 5%, or otherwise 10%. Whether the favorable rate will be 
applicable to dividends received by Sinovac Hong Kong from its PRC subsidiaries is subject 
to the approval of the PRC tax authorities because it is unclear whether Sinovac Hong Kong is 
considered as the beneficial owner of the dividends in substance. 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. As of December 31, 2011, the deferred tax liability related 
to the withholding tax on undistributed earnings of Sinovac Beijing is $nil (December 31, 
2010 - $1,005,186) based on 10%. As of December 31, 2011, the withholding tax on 
dividends declared to Sinovac Hong Kong is $1,730,201 (December 31, 2010 - $nil) based on 
a withholding tax rate of 10% and is included in income tax payable.  The withholding tax rate 
and amount are subject to the approval of the PRC tax authorities. 

The Company was incorporated in Antigua and Barbuda, and has historically been involved in 
a number of business combinations and significant financing. As a result, the Company could 
be involved in various investigations, claims and tax reviews that arise in the ordinary course 
of business activities. 

Income taxes are attributed to the operations in China and consist of: 

2011 

2010 

2009 

Current  
Deferred 
Total income tax expense (recovery) 

   $  2,221,408    $  1,004,607    $  9,878,698   
1,261,823   
   $  5,066,603    $  (703,882 )  $ 11,140,521   

2,845,195   

(1,708,489 ) 

The reconciliation of income taxes at the statutory income tax rate in Antigua and Barbuda to 
income tax rate based on income before income taxes stated in the consolidated statements of 
income (loss) is as follows: 

Income taxes resultant from capital gain  
Income taxes on dividend and interest income 

received from subsidiary 

Loss of subsidiaries at higher rate in China 
Income of the subsidiary (Sinovac Beijing) at 

higher rate in China 

Changes in tax benefits not recognized 
Non-deductible expenses 
Future tax rate difference on current timing 

differences 

Others 
Income tax expense (recovery) 

2011 

—    $ 

2010 

2009 

—    $  2,485,556   

   $ 

725,015   
(2,055,694 ) 

(420,237 ) 
(1,897,897 ) 

1,397,306   
(650,715 ) 

1,651,243   
4,327,094   
206,641   

901,804   
2,172,278   
13,800   

6,918,471   
772,572   
355,924   

432,924   
(220,620 ) 

(133,719 ) 
(4,874 ) 
   $  5,066,603    $  (703,882 )  $ 11,140,521   

(1,487,233 ) 
13,603   

F-29 

  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
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SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

10.                               Income Taxes (continued) 

The tax effects of temporary differences that give rise to the Company’s deferred tax assets 
are as follow: 

Tax losses carried forward  
Tax on accounts receivable provision 
Excess of tax cost over net book value of certain 

assets 

Less: valuation allowance 
Total deferred tax assets 
Less: current portion 
Total deferred tax assets-long term 

2011 

2010 

   $  2,055,694    $  1,897,897   
631,938   

630,970   

3,189,131   
2,898,123   
(2,529,835 ) 
(5,165,673 ) 
3,189,131   
419,114   
(2,682,069 ) 
—   
   $  419,114    $  507,062   

The Company determines deferred taxes for each tax-paying entity in each tax jurisdiction. 
The potential tax benefits arising from the losses incurred by its subsidiaries have not been 
recorded in the financial statements. The tax losses of its PRC subsidiaries in the amount of 
$8,930,894 (RMB 56,842,461) can be carried forward for five consecutive years against its 
profits starting from 2012 and will expire ranging from 2015 to 2017. 

The Company evaluates its 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 circumstances change 
causes a change in management’s judgement about the realizability of deferred tax assets, the 
impact of the change on the valuation allowance is generally reflected in income from 
continuing 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 carryforward period available under applicable tax law. 

A full valuation allowance has been provided for the current deferred income tax assets 
arising from Sinovac Beijing’s temporary differences. 

The valuation allowance relating to losses carried forward of the PRC subsidiaries are still 
required as realization of this element of the potential tax benefit is still uncertain. 

F-30 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

11.                               Non-controlling Interests 

Non-controlling interests represent the interest of non-controlling shareholders in Sinovac 
Beijing and Sinovac Dalian based on their proportionate interests in the equity of that 
company adjusted for its proportionate share of income or losses from operations. On 
October 1, 2011, the Company increased its ownership in Sinovac Beijing by an additional 
1.53% through contributing the dividends declared to Sinovac Hong Kong but unpaid in the 
amount of $2,906,308 (RMB 18,605,600). An adjustment of $273,171 (RMB 1,640,336) 
resulted from the difference between the adjustment to the carrying amount of the non-
controlling interest in Sinovac Beijing and the consideration was charged to additional paid-in 
capital. The non-controlling interest in Sinovac Beijing was 28.44% prior to October 1, 2011 
and was 26.91% after October 1, 2011. The non-controlling interest in Sinovac Dalian was 70% 
for the period from the incorporation to December 27, 2010 and was 45% as of December 31, 
2010 (note 15). 

12.                               Related Party Transactions and Balances 

Related party transactions and balances not disclosed elsewhere in the consolidated financial 
statements are as follows: 

(a)                                 Unsecured, non-interest bearing. The loan to the non-controlling shareholder was in 

lieu of dividend. 

   December 31,     December 31,    

2011 

2010 

Due from Sino Bioway Biotech Group Holding Ltd., 
(―Sino Bioway‖), a non-controlling shareholder of 
Sinovac Beijing  

   $ 

—    $  3,397,522   

(b)                                The Company entered into the following transactions in the normal course of 

operations at the exchange amount with related parties: 

Rent expenses incurred to Sino Bioway     $  804,565    $  581,941    $  503,136   

2011 

2010 

2009 

In 2004, the Company entered into two operating lease agreements with Sino Bioway 
with respect to Sinovac Beijing’s production plant and laboratory in Beijing, China 
with annual lease payments totaling $216,062 (RMB 1,398,680). 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 increased from $69,916 
(RMB 452,600) to $209,747 (RMB 1,357,800) per year. 

In June 2007, the Company entered into another operating lease agreement with Sino 
Bioway, with respect to the expansion of Sinovac Beijing’s production plant in 
Beijing, China for an annual lease payment of $315,636 (RMB 2,043,270). The lease 
commenced in June 2007 and has a term of 20 years. 

F-31 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

12.                               Related Party Transactions and Balances (continued) 

In September 2010, the Company entered into another operating lease agreement with 
Sino Bioway with respect to expansion of Sinovac R&D’s business on research and 
development for an annual lease payment of $133,035 (RMB 861,202). The lease 
commenced on September 30, 2010 and has a term of 5 years. Included in current and 
long-term prepaid expenses and deposits as at December 31, 2011, is $543,965 (RMB 
3,462,172) (December 31, 2010, $653,888 (RMB 4,323,374)), representing prepaid lease 
payments made to this related party. 

(c) 

During 2011, 2010 and 2009, the Company incurred $274,812, $176,032 and $121,119 
respectively, to directors of the Company, relating to management consulting services 
and director fees. Included in accounts payable and accrued liabilities as at December 31, 
2011 is $168,818 (December 31, 2010 - $56,250; December 31, 2009 - $32,000). 

13.                               Accounts Payable and Accrued Liabilities 

Accounts payable and accrued liabilities at December 31, 2011 and December 31, 2010 
consisted of the following: 

Trade payables 
Machinery and equipment payables 
Payable on acquisition of Changping assets 
Accrued expenses 
Value added tax payable 
Other tax payable  
Withholding personal income tax  
Bonus and benefit payables 
Other payables 
Total  

   December 31, 2011     December 31, 2010   
970,114   
   $ 
1,303,361   
2,655,379   
6,964,825   
142,556   
331,295   
1,109,318   
5,478,793   
3,135,549   
22,091,190   

2,945,096    $ 
4,094,238   
5,030,513   
4,119,443   
911,286   
536,735   
1,201,628   
5,759,425   
4,924,131   
29,522,495    $ 

   $ 

In February 2010, Sinovac Beijing purchased the facility located in Changping District, 
Beijing, China for $19.42 million (RMB123.6 million). To finance the acquisition, Sinovac 
Beijing entered into a loan agreement with China Construction Bank to borrow total RMB 90 
million on February 10, 2010 (note 9). As of December 31, 2011, Sinovac Beijing made total 
payments of $14.16 million (RMB 90.1 million). The balance of the payable will be repaid in 
one payment of RMB 10 million on June 30, 2012 and one payment of RMB 23.5 million on 
December 31, 2012. The payable was discounted at a rate of 5.40%. Accretion expense in the 
amount of $377,410 (2010 - $117,064, 2009 - $nil) was included in interest and financing 
expenses. 

F-32 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

14.                               Commitments and Contingencies 

(a)                                 Operating Lease Commitments 

The Company leases production plant and laboratory under operating leases (note 12 (b)). 
Rental expense amounted to $804,565, $581,941 and $503,136 in 2011, 2010 and 2009, 
respectively. 

Minimum future rental payments under operating leases for the years ending December 31 are 
as follows: 

2012 
2013 
2014 
2015 
2016 
Thereafter 
Total minimum future payments 

(b)                                 Other Commitments 

   $ 

805,000   
805,000   
805,000   
805,000   
805,000   
5,851,970   
   $  9,876,970   

In addition to commitments disclosed in note 23, commitments related to R&D expenditures 
are approximately $241,472 as at December 31, 2011. 

Commitments related to capital expenditures are approximately $3,407,057. 

15.                           Incorporation of Sinovac Dalian and Acquisition of Additional 25% Interest of Sinovac 
Dalian 

The Company, through its subsidiary, Sinovac Hong Kong, incorporated Sinovac Dalian on 
January 19, 2010. Upon incorporation, the non-controlling interest shareholder of Sinovac 
Dalian contributed assets in the amount of $20,477,416 (RMB140 million) to own 70% 
interest in Sinovac Dalian. Sinovac Hong Kong contributed cash in the amount of $8,776,036 
(RMB 60 million) to own 30% interest in Sinovac Dalian. Upon incorporation, the non-
controlling interest was recorded at the fair value of $20,477,416 (RMB140 million). The 
transaction was accounted for as an asset acquisition. The Company consolidated Sinovac 
Dalian from the date of incorporation due to its control of Sinovac Dalian’s board of directors 
by holding two of three board seats. 

On December 27, 2010, the Company purchased an additional 25% interest in Sinovac Dalian. 
An adjustment of $1,112,527 (RMB7,355,807) resulted from the difference between the 
adjustment to the carrying amount of the non-controlling interest in Sinovac Dalian and the 
cash consideration was charged to additional paid-in capital. 

F-33 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

16.                           Common Stock 

Share Capital 

In 2009, the Company repurchased 249,734 shares of common stock through open-market 
transactions on NYSE AMEX, at an average price of $1.34 per share, for a total consideration 
of $335,831. 

In 2009, the Company cancelled 542,767 shares of common stock which were repurchased in 
the open market. 

In 2009, the Company issued 234,100 shares of common stock on the exercise of employee 
stock options with exercise price of $2.40 to $3.20 per share, for total proceeds of $697,320. 
In 2009, the Company received further cash proceeds of $4,035 on the exercise of stock 
options for which the shares were issued subsequent to December 31, 2009. 

In 2010, the Company issued a total 11,500,000 shares of common stock at $5.75 per share, 
including 1,500,000 shares of common stock pursuant to the full exercise of the underwriters’ 
over-allotment option. The Company received net proceeds of $61,845,306 after deducting 
underwriters’ commissions and offering expenses of approximately $4,279,694. 

In 2010, the Company issued 220,700 shares of common stock on the exercise of employee 
stock options with exercise prices ranging from $1.60 to $2.69 per share, for total proceeds of 
$409,955. 

In 2011, the Company issued 468,000 shares of common stock on the exercise of employee 
stock options with exercise price of $1.60 per share, for total proceeds of $748,000. In 2011, 
the Company received further cash proceeds of $3,360 on the exercise of stock options for 
which the shares were issued subsequent to December 31, 2011. 

F-34 

  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

17.                               Stock Options 

(a)                                 Stock Option Plan 

The board of directors approved a stock option plan (the ―Plan‖) effective 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 Plan expires on 
November 1, 2023. Up to 10% of the Company’s then outstanding common stocks were 
reserved for issuance under the plan. As of December 31, 2011, 80,100 shares of common 
stock under the options plan remained available. 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 Plan is administered by the board of directors. 

In January 2009, the Company granted 1,708,500 options to directors, officers and certain 
employees with an exercise price of $1.60, being the quoted market price of the Company’s 
shares at the time of grant. These options vest in installments from January 10, 2010 to 
April 10, 2012 and expire on January 10, 2014. The Company did not grant any stock options 
in 2010. 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. These options vest in installments from December 26, 2012 to March 26, 2015, and 
expire on December 25, 2017. 

(b)                                 Valuation Assumptions 

The following assumptions were used in determining stock based compensation costs under 
the Black-Scholes option pricing model: 

Expected volatility 
Risk-free interest rate 
Expected life (years) 
Dividend yield 
Estimated forfeiture rate 

2011 

86.91 % 
0.36 % 
3.24   
Nil   
10 % 

2010 

—   
—   
—   
—   
—   

2009 

75.80 % 
1.38 % 
2.26   
Nil   

7 % 

The weighted average fair value of options granted in 2011 and 2009 was $1.35 and $0.70 per 
option, respectively. 

The expected volatility related to 2011 grants and 2009 grants is based on the Company’s 
historical stock prices. Computation of expected life was estimated after considering the 
contractual terms of the stock-based award, vesting schedules and expectations of future 
employee behaviour. The interest rate for period within the contractual life of the award is 
based on the U.S. Treasury yield curve in effect at the time of grant. 

F-35 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

17.                           Stock Options (continued) 

(c)                                  Stock-based Payment Award Activity 

A summary of the Company’s stock options activities is presented below: 

Outstanding as at December 31, 2009 
Exercised 
Forfeited 
Outstanding as at December 31, 2010 
Granted 
Expired 
Exercised 
Forfeited 
Outstanding as at December 31, 2011 

  Aggregate Intrinsic   
Value 

   Number 

Weighted 
Average 
   Exercise Price    
1.66   
1.88   
1.60   
1.63   
2.37   
3.23   
1.60   
1.60   
1.90    $ 

1,783,500   
(220,700 ) 
(65,400 ) 
1,497,400   
767,000   
(30,000 ) 
(468,000 ) 
(37,900 ) 
1,728,500    $ 

576,900   

Exercisable at December 31, 2011 

801,700    $ 

1.60    $ 

481,020   

Options Outstanding 

   Weighted    

   Weighted    
   Average 
   Remaining     Average 
   Contractual     Exercise 
Price 

Life 

Options Exercisable 
   Weighted    
   Weighted    
   Average 
   Remaining     Average    
   Contractual     Exercise    

Life 

Price 

   Number 
   Exercisable    

Range of 
Exercise 
Prices 

   Number 
   Outstanding    

$ 
$ 

1.60   
2.37   

961,500   
767,000   
   1,728,500   

2.06    $ 
5    $ 
3.36    $ 

1.60   
2.37   
1.90   

801,700   
—   
801,700   

2.06    $ 
—   
2.06    $ 

1.60   
—   
1.60   

Included in selling, general and administrative expenses are $206,301, $459,901 and 
$422,860 of stock-based compensation in 2011, 2010 and 2009, respectively. Stock-based 
compensation expense is charged to operations over the vesting period of the options 
using the straight-line amortization method. 

F-36 

  
  
  
  
  
  
  
  
  
  
  
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
  
  
    
    
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

17.                               Stock Options (continued) 

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 Plan was $995,444, $604,222 and $1,539,669 in 2011, 2010 and 2009, respectively, 
determined as of the date of exercise of option. 

As at December 31, 2011, there was $1,043,765 of unrecognized compensation cost related to 
non-vested stock options granted under the Plan. That cost is expected to be recognized over a 
period of 39 months. The estimated fair value of stock options vested during 2011, 2010 and 
2009 was $416,325, $528,675 and $22,960, respectively. 

18.                               Distribution of Profit 

Pursuant to Chinese company law applicable to foreign investment companies, the Company’s 
subsidiaries, Sinovac Beijing, Tangshan Yian, Sinovac R&D and Sinovac Dalian, are required 
to maintain statutory surplus reserves, which include a general reserve and an enterprise 
expansion reserve. As a solely foreign invested enterprise, Tangshan Yian could only maintain 
a general reserve. 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 general reserve after the 
general reserve is equal to 50% of the subsidiaries registered capital. Statutory surplus 
reserves are recorded as a component of shareholders’ equity and are not distributable other 
than upon liquidation. 

For the year ended December 31, 2011, Sinovac Beijing appropriated 10% (2010 -10%; 2009 
-10%) and nil (2010 - 5%; 2009 - 5%) of its after-tax profit, determined under the relevant 
Chinese accounting regulations, to the general reserve and the enterprise expansion reserve, 
respectively.  For the year ended December 31, 2011, the general reserve and the enterprise 
expansion reserve appropriated are $335,161 (RMB 2,133,203), (2010 - $1,073,240 (RMB 
7,096,045); (2009 - $2,875,711 (RMB 19,661,240)) and nil, (2010 - $536,619 (RMB 
3,548,023); (2009 - $1,437,856 (RMB 9,830,620)) respectively. 

Pursuant to the same Chinese company law, the Company’s subsidiaries, Sinovac Beijing, 
Tangshan Yian, Sinovac R&D and Sinovac Dalian can transfer, at the discretion of their 
respective boards of directors, a certain amount of their annual net income after taxes as 
determined under the relevant PRC GAAP to a staff welfare and bonus fund.  For the year 
ended December 31, 2011, the board of directors of Sinovac Beijing approved $167,580 
(RMB 1,066,601); (2010 - $536,619 (RMB 3,548,023); (2009 - $1,437,856 (RMB 9,830,620)) 
for contribution to such fund which shall be utilized for collective staff benefits. The amounts 
appropriated to the staff welfare and bonus fund were charged against income and the related 
provisions were reflected as accrued liabilities in the consolidated balance sheets. 

F-37 

  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

18.                               Distribution of Profit (continued) 

Tangshan Yian recorded a net loss for each of the three years in the period ended 
December 31, 2011, so no appropriation to the statutory surplus reserves and staff welfare and 
bonus fund was made. 

Sinovac R&D and Sinovac Dalian have not made any profit since inception, so no 
appropriation to the statutory surplus reserves and staff welfare and bonus was made. 

Dividends declared by the Company’s subsidiaries are based on the distributable profits as 
reported in their statutory financial statements. In 2011, Sinovac Beijing declared a dividend 
of $5,862,676 (RMB 38,608,654) related to the profits of 2010 (2010 - $3,285,902 (RMB 
22,463,737), 2009 - $3,849,501 (RMB 26,319,722)) to the non-controlling shareholder of 
Sinovac Beijing. On January 18, 2012, Sinovac Beijing declared a dividend of $795,106 
(RMB5,060,612) related to the profits of 2011. As of December 31, 2011, the Company has 
$795,106 dividend payable (December 31, 2010 - $nil). 

In addition to the above reserves, transferring net assets from the Chinese subsidiaries to the 
Company in the form of dividend payments, loans or advances also requires the Company and 
certain shareholders to comply with certain administrative rules prescribed by the relevant 
Chinese government authorities. 

Pursuant to the relevant PRC company laws and regulations, the Company’s PRC subsidiaries’ 
paid-in capital and statutory surplus reverses that are restricted from transfer or dividend 
distribution amounted to $86.2 million (RMB 548.9 million) and $72.2 million (RMB 477.1 
million) as of December 31, 2011 and 2010. 

19.                               Deferred Government Grants 

Deferred government grants (current) represent research and development grants received, net 
of research and development expenditures incurred. In 2011, the Company received $893,149 
(RMB 5,781,800) (2010 - $372,012 (RMB 2,521,760)) in government grants for research and 
development expenses. 

Deferred government grants (non-current) included $2,277,428 (RMB 14,495,147) 
(December 31, 2010 - $2,464,565 (RMB 16,295,212)) being the unamortized portion of the 
amount that the Company received in 2007 for construction of a pandemic influenza vaccine 
production facility. The condition of receiving the production facility grant requires the 
Company to have the entire facility available to manufacture pandemic influenza vaccines at 
any given moment upon request by the Chinese government. Government grant relating to the 
production facility recognized in income was $278,067, $265,547 and $197,347 in 2011, 2010 
and 2009, respectively. 

In 2011, the Company received $699,776 (RMB 4,530,000) (2010 - $nil) interest subsidy 
related to the Changping facility construction project and recorded as a reduction to interest 
capitalized (note 9). 

In 2011, the Company received $331,135 (RMB 2,143,600) (2010 - $nil) general incentives 
from the government and recorded it in government grants recognized as income in statement 
of income. 

F-38 

  
  
  
  
  
  
  
  
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

19.                               Deferred Government Grants (continued) 

In 2011, the Company received $595,883 (RMB 3,857,450) (2010 - $147,521 
(RMB1,000,000)) interest subsidy from the government and recorded it as a reduction to 
interest and financing expenses in statement of income. 

20.                               Deferred Revenue 

The current deferred revenue included $97,412 (December 31, 2010 - $7,712,996) received 
from the Chinese government for stockpiling of H5N1 vaccines which would expire within 
one year and $332,004 (December 31, 2010 - $1,994,681) of HA vaccines products in 
advances from customers. 

The long-term deferred revenue included $10,369,695 (December 31, 2010 - $3,478,629) 
received from the Chinese government for stockpiling of H5N1 vaccines. 

21.                           Earnings (Loss) per Share 

Earnings (loss) per share was calculated as follows: 

Net income (loss) attributable to the 

stockholders 

Basic weighted average number of 
common shares outstanding 
Dilutive effect of stock options 
Diluted weighted average number of 

common shares outstanding 
Basic earnings (loss) per share 
Diluted earnings (loss) per share 

2011 

2010 

2009 

   $  (844,696 )  $ (8,507,344 )  $ 19,958,388   

54,608,919   
—   

53,064,968   
—   

42,580,945   
394,062   

54,608,919   

53,064,968   

(0.02 )  $ 
(0.02 )  $ 

(0.16 )  $ 
(0.16 )  $ 

42,975,007   
0.47   
0.46   

   $ 
   $ 

For the years ended December 31, 2011 and 2010, the basic and diluted loss per share are the 
same as including the additional potential common stock equivalents would have an anti-
dilutive effect on the loss per share calculation. 

F-39 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
    
    
  
  
  
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

22.                               Segmented Information 

The Company operates exclusively in the biotech sector. The Company’s business is 
considered as operating in one segment based upon the Company’s organizational structure, 
the way in which the operation is managed and evaluated, the availability of separate financial 
results and materiality considerations. All revenues are generated in China. Total long-lived 
assets of $76,964,135 (December 31, 2010 - $65,384,592) including property, plant and 
equipment and license and permits are all located in mainland China. The Company’s total 
assets by geographic location are as follows: 

Assets 
Mainland China 
Hong Kong 
Total  

   December 31, 2011     December 31, 2010   

   $  170,662,019    $  160,814,672   
53,543,252   
   $  215,908,129    $  214,357,924   

45,246,110   

The Company’s revenues by product are as follows: 

2011 

2010 

2009 

Sales 
Inactivated hepatitis vaccines 
Influenza vaccines 
Total  

   $ 26,939,386    $ 16,200,844    $ 39,242,901   
44,954,281   
   $ 56,841,892    $ 33,401,426    $ 84,197,182   

17,200,582   

29,902,506   

Sales of H1N1 and H5N1 vaccines represent 24.6% and 13.7%, respectively, of total revenue 
in 2011 (2010 – 21.5% and 7.2%, respectively, 2009 – 35.3% and 0.1%, respectively). The 
H1N1 and H5N1 vaccines were all sold to the Chinese government. The Company’s sales of 
H1N1 and H5N1 vaccines are dependent on government purchases. Loss of such government 
purchases would have a material adverse effect on the Company’s total sales. 

The Company’s revenues are attributed to geographic locations as follows: 

2011 

2010 

2009 

Sales 
Mainland China 
Foreign countries 
Total  

   $ 56,407,130    $ 32,981,974    $ 84,122,913   
74,269   
   $ 56,841,892    $ 33,401,426    $ 84,197,182   

419,452   

434,762   

F-40 

  
  
  
  
  
  
    
    
  
  
  
  
  
  
  
  
  
    
    
    
  
  
  
  
  
  
  
  
  
  
    
    
    
  
  
 
Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

23.                               Collaboration Agreements 

(a) 

On March 12, 2009, the Company entered into a technology transfer agreement (with an 
amendment entered on December 14, 2011) with Tianjing CanSino Biotechnology Inc. 
to develop a pneumococcal vaccine. The collaboration term under the technology 
transfer agreement is from March 12, 2009 to eight years after the first sales of the 
vaccine developed under the technology transfer agreement in Chinese market. 

(b) 

(c) 

Under the terms of the technology transfer agreement, the Company will make 
milestone payments of up to $3 million and royalty payments ranging from percentages 
falling in the teens for the portion of the net sales in Chinese market less than RMB 100 
million and the single digits for net sales in Chinese market in excess of RMB 100 
million. Both parties will work together to develop international markets for the 
products. 

On December 14, 2011, an amendment agreement was signed for the payment of 
$300,000 for transfer of additional 6 serotypes and related technology. As of 
December 31, 2011, the Company incurred milestone payments of $1 million. 

On August 18, 2009, the Company entered into a patent license agreement with the 
National Institutes of Health (―PHS‖), an agency of the United States Public Health 
Services within the Department of Health and Human Services. PHS has granted the 
Company a non-exclusive license to make and use certain of its products. PHS has also 
granted the Company the right to use certain associated information for development of 
its licensed products. 

The Company has agreed to pay PHS a license issue royalty of $80,000 and a non-
refundable minimum annual royalty of $7,500, and royalty payments on net sales with a 
range in single digits depending on the sales territory and the customers. The Company 
has also agreed to pay PHS benchmark royalties upon achieving each benchmark as 
specified in the patent license agreement. In 2011, the Company recorded a license issue 
royalty of $21,125 (2010 $ - 7,500; 2009 $ - 90,274) in research and development 
expenses. 

The Company licensed from MedImmune, LLC certain rights to use patented reverse 
genetics technology pertaining to virus strain production for vaccines, including the 
H5N1 influenza virus strain. The Company has agreed to pay an upfront license fee, 
milestone payments of up to an aggregate of $6.5 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). As of December 31, 2011, an upfront license fee 
was included in the account payable and accrued liabilities. No milestone payments 
have been paid or are payable because the cumulative net sales target has not been 
achieved. 

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Table of Contents 

SINOVAC BIOTECH LTD. 
Incorporated in Antigua and Barbuda 
Notes to Consolidated Financial Statements 
December 31, 2011 and 2010 
(Expressed in U.S. Dollars) 

24.                               Subsequent Events 

On March 15, 2012, Sinovac Dalian borrowed a loan of $3.14 million (RMB 20 million) from 
its non-controlling shareholder, bearing interest at 7.2% per year and interest is payable 
monthly. The loan is payable on March 14, 2014. 

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