Aged 57. Mr Cheung joined the Information Officer Grade of the Government in July 1972. He transferred to the Administrative Service in September 1979, and was promoted to the rank of Administrative Officer Staff Grade A1 in September 2004.

Mr Cheung has served in various bureaux and departments including the former Finance Branch, Home Affairs Department, the former City and New Territories Administration, the former Government House, the former Industry Department, the former Trade Department, the former Financial Secretary's Office, Judiciary and Central Policy Unit. He was Deputy Secretary for Education and Manpower from March 1996 to January 1999, Commissioner for Labour from January 1999 to June 2000, and Director of Education from June 2000 to June 2002. He was Permanent Secretary for Economic Development and Labour (Labour), later retitled as Permanent Secretary for Economic Development and Labour (Labour)/Commissioner for Labour from July 2002 to March 2007.

Last Revision Date: August 2008