Board of Directors

William Ding
Founder, Director and Chief Executive Officer
William Lei Ding, our founder, has served as our director since July 1999 and as our chief executive officer since November 2005. From March 2001 until November 2005, Mr. Ding served as our chief architect, and from June 2001 until September 2001, he served as our acting chief executive officer and acting chief operating officer. From July 1999 until March 2001, Mr. Ding served as co-chief technology officer, and from July 1999 until April 2000, he also served as our interim chief executive officer. Mr. Ding holds a Bachelor of Science degree in Communication Technology from the University of Electronic Science and Technology of China.
Alice Cheng
Independent Director
Alice Yu-Fen Cheng, also known as Alice Cheng, has served as our director since June 2007. Ms. Cheng has also served as a non-executive director of J&T Global Express Limited since May 2020 and as a member of its audit committee since the company listed on the Hong Kong Stock Exchange in October 2023 (HKEX: 1519). From 2005 to 2021, Ms. Cheng served as the chief financial officer of BBK Electronics Corp., Ltd., a PRC-based manufacturer of audio-visual equipment. From 2010 to 2013, Ms. Cheng served as a supervisor of Wistron Information Technology Corporation in Taiwan, an information technology company with operations in Taiwan, China and Japan. From 2002 to 2005, Ms. Cheng served as financial controller of Wistron Corporation, a Taiwanese original design manufacturer of notebook computers and other electronics. Prior to that, Ms. Cheng held various positions with Acer Inc., a Taiwanese computer manufacturer, culminating in the position of financial controller. Ms. Cheng received a Bachelor of Accounting from the Chinese Culture University in Taiwan in 1983 and a Master of Business Administration from the Thunderbird School of Global Management in Arizona in 2003. Ms. Cheng is also licensed as a certified public accountant in Taiwan and the PRC.
Grace Hui Tang
Independent Director
Grace Hui Tang has served as our director since July 2022. Ms. Tang worked at PricewaterhouseCoopers for more than 30 years, including approximately 19 years as an audit partner in Hong Kong and Chinese mainland, until her retirement in 2020. At PricewaterhouseCoopers, Ms. Tang was responsible for the audits of numerous public and private companies in Hong Kong, China mainland, the United States and other jurisdictions. Since 2009, she has also been a professor at the Guanghua School of Management of Peking University where she teaches courses on accounting and auditing for the graduate school of the accounting department and on career development. Since September 2022, Ms. Tang has been teaching accounting and auditing courses to foreign students at Beijing Foreign Studies University as a professor. In addition, Ms. Tang serves as an independent director of Textainer Group Holdings Ltd. (NYSE: TGH), Brii Biosciences Ltd. (HKEX: 2137), Elkem ASA (OSLO: ELK), ECARX Holdings Inc. (Nasdaq: ECX) and Pirelli & C.S.p.A. (PIRC.MI). Ms. Tang received a bachelor’s degree in accounting from the University of Utah and an MBA degree from Utah State University. Ms. Tang is a US certified public accountant and a fellow of the Hong Kong Institute of Certified Public Accountants.
Joseph Tong
Independent Director
Joseph Tze Kay Tong, also known as Joseph Tong, has served as our director since March 2003. From January 2003 to November 2021, Mr. Tong was a director of Parworld Investment Management Limited, which provides financial and investment advisory services. From December 2002 until April 2004, Mr. Tong was engaged in establishing offices and operations in Hong Kong and China mainland, setting up accounting and internal control policies and overseeing the overall operations for TLM Apparel Co., Ltd., a garment trading company operating in Hong Kong and China mainland which he co-founded. Prior to that, from September 2000 to September 2002, Mr. Tong was the e-commerce director of the Asia Region for Universal Music Limited where he was responsible for forming e-business development strategies and overseeing new promotional opportunities. Mr. Tong received a Bachelor of Social Science degree with honors in Accounting and Statistics from the University of Southampton, England. He is a member of the American Institute of Certified Public Accountants, an associate member of the Hong Kong Institute of Certified Public Accountants.
Michael Leung
Independent Director
Michael Man Kit Leung, also known as Michael Leung, has served as our director since July 2002. Mr. Leung was a responsible officer of Grand Moore Capital Limited from September 2019 to November 2021. Mr. Leung was appointed executive director of Unitas Holdings Limited (stock code: 8020) from September 2011 to November 2018, and served as a responsible officer from May 2011 to November 2018 of Chanceton Capital Partners Limited, a subsidiary of Unitas Holdings Limited. Previously, Mr. Leung was a director of Emerging Markets Partnership (Hong Kong) Limited, the principal adviser to the AIG Infrastructure Fund L.P., in 1999. Mr. Leung also held senior positions in the Hong Kong Branch of the Swiss Bank Corporation, SG Securities (HK) Limited (formerly known as Crosby Securities (Hong Kong) Limited) and Peregrine Capital Limited. Mr. Leung currently is an independent non-executive director and chairman of the audit committee for Orange Sky Golden Harvest Entertainment (Holdings) Limited (stock code: 1132) and Luye Pharma Group Ltd. (stock code: 2186), all of which are companies listed on the Hong Kong Stock Exchange. Mr. Leung also serves as an independent non-executive director on the board of China Ting Group Holdings Limited (stock code: 3398), a company listed on the Hong Kong Stock Exchange. Mr. Leung received a Bachelor’s Degree in Social Sciences from the University of Hong Kong in October 1977 with a major in Accounting, Management and Statistics.