SVA [SINOVAC BIOTECH] 8-A12B/A: (Original Filing)
[W ashington FORM 8-A Amendment No. 4 FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES SINOVAC BIOTECH LTD. Antigua, West Indies Not Applicable (State or other jurisdiction (I.R.S. Employer Identification of incorporation or organization) Number) No. 15 Zhi Tong Road, Zhongguancun Science and Techno]