Chairman

President, Hong Kong Chinese Industry & Commerce Association
President, Chinese Progressive Association (Hong Kong)
President, Wing On Professional Group
President, Accounting Associates Alliance

CEO, The Certizen Management
Secretary General, The Asia Public Key Infrastructure (PKI) Consortium

Principle Liaison Officer for Hong Kong, Authority of Qianhai Shenzhen-Hong Kong Modern Service Industry Cooperation Zone of Shenzhen
President, The Internet Professional Association

President, Monte Jade Science and Technology Association of Hong Kong
President, Hong Kong-ASEAN Economic Cooperation Foundation

Associate Professor, The Business School, National University of Singapore

Professor and Head, Department of Management Sciences, Faculty of Business, City University of Hong Kong

Professor, Department of Systems Engineering and Engineering Management, Faculty of Engineering, The Chinese University of Hong Kong