 From 2003 to 2004, Cheng served as a member of the Securities & Futures Commission Public Shareholders Group to advise on issues relating to safeguarding shareholders' rights and interests.Cheng was chairman of the second Hong Kong Film Awards Organizing Committee in 1984.He was a member of the Hong Kong Film Development Council from 2011 to 2013 to advise the Secretary for Commerce and Economic Development on relevant policies and activities, including manpower training, Mainland and overseas promotion, and support for the film industry.