SVA [SINOVAC BIOTECH] SC 13G/A: (Name of Issuer) Common Stock (Title of Class
[(Name of Issuer) Common Stock (Title of Class of Securities) P8696W104 (CUSIP Number) January 31, 2011 (Date of Event Which Requires Filing of this Statement) [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) * CUSIP No. P8696W104 1. NAMES OF REPORTING PERSONS 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 3. SEC USE ONLY]
