Martin Chiping Lau has served as our director since March 2014. Mr. Lau is president and executive director of Tencent Holdings Limited, a provider of comprehensive internet services serving the largest online community in China and listed on the Hong Kong Stock Exchange. In 2007, Mr. Lau was appointed as an executive director of Tencent. In 2006, Mr. Lau was promoted as the president of Tencent to manage the day-to-day operation of Tencent. In February 2005, he joined Tencent as the chief strategy and investment officer, and was responsible for corporate strategies, investments, merger and acquisitions and investor relations. Prior to joining Tencent, Mr. Lau was an executive director at Goldman Sachs (Asia) L.L.C.'s investment banking division and the chief operating officer of its telecom, media and technology group. Prior to that, he worked at McKinsey & Company, Inc. as a management consultant. Mr. Lau also serves as a director of Vipshop Holdings Limited, an online discount retailer listed on the NYSE, a director of Tencent Music Entertainment Group, an online music entertainment platform in China listed on the NYSE, a non-executive director of Meituan, an e-commerce platform for service listed on the Hong Kong Stock Exchange, and a non-executive director of Kingsoft Corporation Limited, an internet based software developer, distributor and software service provider listed on the Hong Kong Stock Exchange. Mr. Lau received a bachelor of science degree in electrical engineering from the University of Michigan, a master of science degree in electrical engineering from Stanford University and an MBA degree from Kellogg Graduate School of Management, Northwestern University.