SVA [SINOVAC BIOTECH] S-8: 2012 Share Incentive Plan (Full title of the
[2012 Share Incentive Plan (Full title of the plan) Law Debenture Corporate Services Inc. 400 Madison Avenue, 4th Floor 7 New York, New York 1001 (Name and address of agent for service) (212) 750-6474 (Telephone number, including area code, of agent for service) Copies to: Eugene Y. Lee Latham & Watkins 18th Floor, One Exchange Square 8 Connaught Place, Central] [[Letterhead of RICHARDS & COMPANY] September 4, 2013 Sinovac Biotech Ltd. No. 39 Shanghai Xi Road Haidan District, Beijing, 100085 People’s Republic of China Re: Sinovac Biotech Ltd (‘the Company”) As Antigua and Barbuda legal counsel to the Company, we have examined (i) the Registration Statement, (ii) the Plan, (iii) the articles of incorporation and by-laws of the Company and] [Consent of Independent Registered Public Accounting Firm Vancouver, Canada September 4, 2013 Chartered Accountants] [SINOVAC BIOTECH LTD. ARTICLE 1. Plan Company The purpose of the Sinovac Biotech Ltd. 2012 Share Incentive Plan (the “ ARTICLE 2. Wherever the following terms are used in the Plan they shall have the meanings specified below, unless the context clearly indicates otherwise. The singular pronoun shall include the plural where the context so indicates. Administrator 2.1 “ Applicable]