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Wing Hong Sammy Hsieh
Chairman, Chief Executive Officer and Co-Founder

Mr. Wing Hong Sammy Hsieh is our chairman of the board and co-founder and has served as our chief executive officer since 2009. Prior to founding our company, Mr. Hsieh held senior positions in a number of prominent technology companies. Mr. Hsieh was general manager for Asia Pacific at Efficient Frontier (now an Adobe company), a leading digital performance marketing company in 2008. Prior to that, Mr. Hsieh was director of Search Marketing at Yahoo Hong Kong during 2000 to 2008, during which he oversaw the business operations, including sales, marketing, business development and product management. Mr. Hsieh also held various sales and marketing positions at the LVMH Group and British American Tobacco earlier in his career. Mr. Hsieh received his bachelor’s degree in economics from the University of California, Los Angeles.
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Jian Tang
Director, Chief Operating Officer, Chief Technology Officer, and Co-Founder

Mr. Jian Tang is our director and co-founder and has served as our chief operating officer since January 2016 and our chief technology officer since November 2016. Mr. Tang has approximately 20 years of experience in digital advertising and is well-known in the area of advertising technologies and big data in China. Prior to joining us, Mr. Tang founded OptAim in 2012, which was later acquired by us in July 2015. Prior to founding OptAim, Mr. Tang was Tencent’s engineering director of Advertising Platform Department who helped initiate and develop Tencent’s programmatic ad exchange platform. Mr. Tang had also served key research and engineering and management roles at Yahoo’s global research and development center, Baidu and Microsoft Research from 2005 to 2011, where he led a number of major technical and research and development projects. Mr. Tang received his doctor’s degree in computer engineering from Tsinghua University. Mr. Tang was named by Campaign Asia as one of the leaders in its Digital A-List in 2016.
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Jie Jiao
Chief Financial Officer

Ms. Jie Jiao has served as our chief financial officer since May 2017 and was our head of finance from 2014 to 2016. Ms. Jiao has also served as an independent non-executive director of China Sunshine Paper Holdings Company Limited (2002.HK), a Hong Kong listed company, since 2014. Prior to joining us, Ms. Jiao served at several U.S. or Hong Kong-listed companies, including ArtGo Holdings Limited (3313.HK) and Fang Holdings Limited (NYSE: SFUN), mainly in charge of their initial public offerings, compliance after the initial public offerings and investor relationship from 2007 to 2014. She was a senior counsel at Jingtian & Gongcheng from 2004 to 2007. Ms. Jiao received her bachelor degree of law and bachelor degree of economics from Peking University, and her master degree of law in Oxford University. Ms. Jiao is a Chartered Financial Analyst and has obtained her PRC Legal Profession Qualification Certificate.
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Yan Lee
Chief Product Officer

Mr. Yan Lee has served as our chief product officer since 2016. Mr. Lee has approximately ten years of experience in digital marketing and products, with a focus on big data advertising platforms as well as business ecosystem infrastructure. Prior to joining us, Mr. Lee was the founder and chief executive officer of Buzzinate, a leading demand side platform and data service provider in mainland China, which was acquired by us in November 2014. Prior to founding Buzzinate, Mr. Lee held strategic advertising roles at several 4As agencies serving automobile, fast-moving consumer goods and retail clients. Mr. Lee received his dual bachelor’s degrees in advertising and corporate management from National Chengchi University in Taiwan, and an MBA degree from China Europe International Business School in Shanghai, China. In 2012, Mr. Lee was named by Forbes China as one of China’s “30 Under 30” Entrepreneurs.