Dr. YEN has been a Non-Executive Director of the Company since 31 May 2013 and was appointed as Non-Executive Vice Chairman on 28 August 2018. Prior to that, he was the Chief Financial Officer and an Executive Director of the Group. He joined the Group in 1999 and was then promoted to the role of Executive Director in 2004 before assuming the role of Non-Executive Director. Dr. YEN is currently the Managing Director of Radiant Venture Capital Limited. He also serves as an independent non-executive director as well as a member of each of the audit committee and the nomination committee of Impro Precision Industries Limited, a company listed on the Main Board of the Stock Exchange (stock code: 1286). Dr. YEN is a member of the Henan Province Committee of the Chinese People's Political Consultative Conference of the People's Republic of China (the "PRC"); a Director of GS1 HK Limited; and a Director of the Hong Kong Chiu Chow Chamber of Commerce. He holds a Bachelor's degree in Manufacturing Engineering from Boston University, USA; a Master's degree in Business Administration from McGill University, Canada and a Doctorate in Business Administration from the Hong Kong Polytechnic University.