- 2023 to 2028
Member, 14th National Committee of Chinese People’s Political Consultative Conference
- 2022 to 2025
Member, 7th Legislative Council of the HKSAR
- 2017 to 2021
Member, 13th Chinese People’s Political Consultative Conference Guangzhou Committee (第十三屆廣州市政協委員).
- 01 Sep 2016 to 31 Aug 2018
Member, Board of Advisors, Radio Television Hong Kong (RTHK)
- 15 Mar 2016 to 14 Mar 2018
Member, The Hong Kong Society for the Aged (SAGE) Advisory Committee on ICT Development
- 01 Jan 2016 to 31 Dec 2017
External Advisor, Higher Diploma and Diploma programmes, Hong Kong College of Technology
- 01 Apr 2015 to 31 Mar 2017
Member, Airport Technology Advisory Council of the Hong Kong International Airport (HIA)
- 15 Mar 2014 to 14 Mar 2016
Member, Advisory Committee on ICT Development, The Hong Kong Society for the Aged (SAGE)
- 1 Feb 2014 to 1 Jan 2017
Member, Advisory Peer Group, Lee Shau Kee School of Business and Administration, The Open University of Hong Kong
- 01 Jan 2014 to 31 Dec 2016
Member, 2014-2016 Radio Television Hong Kong (RTHK) Programme Advisory Panel
- 1 Jan 2014 to Jun 2016
Member, Programme Advisory Committee, Internet Learning Support Programme (ILSP), Boys’ and Girls’ Club Association (GGCA), HKSAR
- 1 Nov 2012 to 30 Apr 2014
Chair, Organization Committee, Hong Kong Information and Communication Technology Awards (HKICTA), HKSAR
- 1 May 2012 to 30 Apr 2014
Member, Programme Advisory Panel, Radio and Television of Hong Kong (RTHK), HKSAR
- 2 Apr 2012 to 1 Apr 2013
Chairman, 63rd HK IT Sector National Day Celebration Organization Committee, 2012
- 12 Dec 2011 to 2016
Elected member, Election Committee Subsector Elections (IT Subsector) 2011, HKSAR
- 1 Nov 2011 to 30 Apr 2012
Chair, Organization Committee, Hong Kong Information and Communication Technology Awards (HKICTA), HKSAR
- Jul 2008 to Jun 2010
Member of the ICT Advisory Committee, HK Trade and Development Council (HKTDC)
- Since 2008
Chairman, ICT Advisory Committee, Scout Association of Hong Kong.
- Since 2008
Elected Member of Scout Council of Hong Kong and its Executive Committee
- 1 Dec 2008
Advisor to the Professional Committee, Youth Network
- Sep 2007 to Oct 2009
Advisor, Hong Kong Institute of Utility Specialists (HKIUS)
- Sep 2007 to Oct 2009
Advisor, Hong Kong Utility Research Centre (HKURC)
- 14 Dec 2007
Forum Chair, 3rd HK Technology Forum, HKCEC, organized by HK IT Joint Council (over 300 participants)
- Nov 2007 - Present
Member, Advisory Committee, Hong Kong Information Technology Industry Council (HKITIC), since November 2007.
- Oct 2007 to Sep 2009
By Election, Board Member, HK Internet Registration Corporation Ltd and HK Domain Name registration Co. Ltd.
- 2008 - 2013
Chairman, HK IT Joint Council. (by election)
- Jan 2007 to Dec 2008, 2009 - 2012
Appointed by the Secretary for Commerce, Industry and Technology as a member of the Assessment Panel for the Small Entrepreneur Research Assistance Programme (SERAP) under the Innovation and Technology Fund (ITF) for 2 years from Jan 1, 2007 to Dec 31, 2008.
- Sep 2006
Group Leader, HK IT Sector National Day Celebration Beijing Visit Delegation.
- Jul 2006 to Jun 2008
Member of the ICT Advisory Committee, HK Trade and Development Council (HKTDC)
- Jul 2006 to Jun 2007
Member of the ICT Advisory Committee, HK Scout Association.
- Jan 2006 to Dec 2008
President of the Chinese and Oriental Languages Computer Society (COLCS), USA
- Sep 2004
Founding Chairman, Bridging Chinese Digital Divide Charity Foundation
- Jan 2004 to Dec 2005
Honorary Advisor, Information and Software Industry Association (ISIA), HK
- 18 Sep 2003
Chaiman of the HK IT Sector 54th National Day Celebration Gala Dinner, 18/9/03, Inter-continental Hotel, HK. (over 700 participants from HK and Mainland IT industries)
- 17 Sep 2003
Program Chair of 1st HK Technology Forum, 17/9/03, HKCEC, organized by HK IT Joint Council (over 300 participants)
- 2002 - 2003:
Vice Chairman, Hong Kong I.T. Joint Council
- Jan 2001 - Jun 2001
Member of the Project Assurance Team of the Government System Architecture (GSA) Review Project, HKSAR Government
- 2000 - 2003
Member of the Governing Board of Chinese Language Computer Society (CLCS), USA
- Jul 1997 – Jun 2003
Member of the Membership Activities Board (MAB), ACM responsible for the China membership program
- Jun 1996 - Jun 1999
Vice chairman of ACM Special Interest Group in Applied Computing (SIGAPP)
- Oct 1995 - Sep 1996
Chairman of the Association for Computing Machinery Hong Kong Chapter (ACM-HK)
- Oct 1995 - Sep 1996
Regional director of the ACM Asian Pacific Regional Programming Contest
- Jul 1995 - Jun 1996
Member of the Local Activities Board of the Association for Computing Machinery (U.S.A.)
- Jan 1995 - Dec 1995
Chairman of the Association for Computing Machinery Hong Kong Chapter