Sidney Xuande Huang has served as our independent director since IPO. Mr. Huang is currently a senior advisor to JD.Com, Inc. (NASDAQ: JD; HKG: 9618) and was its chief financial officer from September 2013 until his retirement in September 2020, including the last three months as an executive coach to his successor. He was a member of the board of directors of Bitauto Holdings Limited (NYSE: BITA) from November 2010 to August 2020. Prior to that, Mr. Huang was the chief financial officer of VanceInfo Technologies Inc. (NYSE: VIT) and its successor company, Pactera Technology International Ltd., from July 2006 to September 2013. Mr. Huang served as the co-president of VanceInfo Technologies Inc. from 2011 to 2012 and its chief operating officer from 2008 to 2010. Prior to VanceInfo Technologies Inc., he was the chief financial officer of two other China-based companies in technology and internet sectors between 2004 and 2006. Mr. Huang was an investment banker at Citigroup Global Markets Inc. in New York from 2002 to 2004. He held various positions including audit manager at KPMG LLP from 1996 to 2000 and was a Certified Public Accountant in the State of New York. Mr. Huang obtained his master's degree in business administration with distinction from the Kellogg School of Management at Northwestern University as an Austin Scholar. He received his bachelor's degree in accounting from Bernard M. Baruch College, where he graduated as class valedictorian.