Sinovac to Host Conference Call to Report Second Quarter 2008 Financial Results
Thursday August 7, 8:00 am ET

BEIJING, Aug. 7 /Xinhua-PRNewswire/ -- Sinovac Biotech Ltd. (Amex: SVA - News), a vaccine-focused biotech company in China, today announced that it will host a conference call on Wednesday, August 13, 2008 at 9:00 a.m. ET to review the Company's second quarter financial results for the period ended June 30, 2008 and provide an update on recent corporate developments.

To access the conference call, please dial 1-877-407-4018 ( ) or 1-201- 689-8471 (international). A replay of the call will be available from 12:00 p.m. ET on August 13 until August 27, 2008, at midnight. To access the replay, please dial 1-877-660-6853 ( ) or 1-201-612-7415 (international) and reference the account number 3055 and the access code 293426.

A live audio webcast of the call will also be available from the Investors section on the corporate web site at http://www.sinovac.com . A webcast replay can be accessed on the corporate website beginning August 13, 2008 and the replay will remain available for 30 days.

About Sinovac

Sinovac Biotech Ltd. is a China-based biopharmaceutical company that focuses on the research, development, manufacture and commercialization of vaccines that protect against human infectious diseases. Sinovac's commercialized vaccines include Healive® (hepatitis A), Bilive® (combined hepatitis A and B), Anflu® (influenza) and Panflu(TM) (H5N1). Sinovac is currently developing Universal Pandemic Influenza vaccine and Japanese encephalitis vaccine. Additional information about Sinovac is available on its website, http://www.sinovac.com . To be added to our distribution list, please email: info@sinovac.com.

 For more information, please contact:

     Helen G. Yang

     Sinovac Biotech Ltd.

     Tel:   +86-10-8289-0088 x871

     Fax:   +86-10-6296-6910

     Email: info@sinovac.com

    Investors/Media:

     Stephanie Carrington

     The Ruth Group

     Tel:   +1-646-536-7017

     Email: scarrington@theruthgroup.com

     Janine McCargo

     The Ruth Group

     Tel:   +1-646-536-7033

     Email: jmccargo@theruthgroup.com