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David Cui has been a director since September 2020. Mr. Cui is currently serving as the chief financial officer of Vipshop Holdings Limited (NYSE: VIPS) since November 2020. Before joining Vipshop, Mr. Cui was the Chief Financial Officer of Huami Corp. (NYSE: HMI) from August 2017 to September 2020. Mr. Cui has also served as an independent non-executive director of Inke Limited, a leading Chinese mobile live streaming company listed on the Hong Kong Stock Exchange, since June 23, 2018, and 9F, Inc, a Nasdaq-listed leading digital financial account platform in China, since August 2019. Mr. Cui has extensive experience in public accounting and financial management. From August 2015 to April 2017, Mr. Cui was the chief financial officer of China Digital Video Holdings Limited, a company listed on the Hong Kong Stock Exchange. Prior to that, Mr. Cui was an independent financial advisor to high growth companies on business strategies, fund raising, corporate governance and accounting matters. From April 2011 to August 2013, Mr. Cui was the chief financial officer in iKang Healthcare Group, Inc., a company listed on Nasdaq. He was an audit senior manager of Deloitte Touche Tohmutsu, China from April 2007 to April 2011. Prior to that, Mr. Cui was the financial reporting manager of Symantec Corporation. From April 2004 to August 2006, he served as an audit manager of Ernst & Young, California. Mr. Cui was a senior auditor in the Audit and Advisory Services practice of Health Net, Inc., California from May 2001 to April 2004. From January 1996 to May 2001, Mr. Cui worked in public accounting in Canada and the United States. Mr. Cui has a bachelor’s degree in business administration from Simon Fraser University, Canada and is a licensed CPA in the United States and Canada.