SVA [SINOVAC BIOTECH] 6-K: (Original Filing)
[Sinovac Announces Resignation of Chup Hung Mok from Board of Directors Press Release: Sinovac Biotech Ltd. – Wed, Jan 4, 2012 8:00 AM EST BEIJING , Jan. 4, 2012 /PRNewswire-Asia/ -- Sinovac Biotech Ltd. (Nasdaq: SVA - News), a leading provider of vaccines in China , today announced the resignation of Ms. Chup Hung Mok from its Board of Directors] [SINOVAC BIOTECH LTD. Weidong Yin Chairman and Chief Executive Officer]