David Ying Zhang has been our director since October 2010. Mr. Zhang was appointed to be our director by Matrix Partners China, one of our shareholders and such appointment right will automatically terminate upon the closing of this offering. Our board of directors has determined that Mr. Zhang meets the independence standards under Rule 10A-3 under the Exchange Act and applicable NYSE corporate governance rules. Mr. Zhang is a founding managing partner of Matrix Partners China, where he oversees all of private equity investment firm's operations. Mr. Zhang is currently also a director of Sungy Mobile Limited (NASDAQ: GOMO). Prior to joining Matrix Partners China, since 2002, Mr. Zhang established and expanded WI Harper Group's Beijing operations and co-managed its China portfolios. Prior to joining WI Harper Group, Mr. Zhang worked at Salomon Smith Barney, where he was responsible for analyzing, structuring and marketing companies in the internet, software and semiconductor sectors. Before then, Mr. Zhang worked at ABN AMRO Capital as a senior venture associate. Mr. Zhang received a master of science degree in biotechnology and business from Northwestern University in 1999 and a bachelor of science degree in clinical science with minor in chemistry from California State University in 1997.