Unassociated Document
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2011


Commission File Number: 001-32371


SINOVAC BIOTECH LTD.

No. 39 Shangdi Xi Road
Haidian District
Beijing 100085, People’s Republic of China
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F Form 40-F o


Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):________________

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):________________
 
 
 

 
 
SIGNATURE
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
 
  SINOVAC BIOTECH LTD.  
     
       
 
By:
/s/ Weidong Yin  
    Name: Weidong Yin  
    Title: Chairman and Chief Executive Officer  
 
Date: August 5, 2011
 
 
 

 
 
Exhibit Index

Exhibit 99.1 – Press Release