Aged 49. Mr Cheung joined the Administrative Service in October 1983 and rose to his present rank of Administrative Officer Staff Grade A in April 2011.
Mr Cheung has served in various bureaux and departments, including the former Office of Unofficial Members of the Executive and Legislative Councils, the former City and New Territories Administration, the former Office of Members of the Executive and Legislative Councils, the former Civil Service Branch, the former Health and Welfare Branch, the former Handover Ceremony Co-ordination Office and Housing Department. He was Director, Hong Kong Economic and Trade Affairs, Singapore from August 1998 to October 2001, Deputy Secretary for Works (later renamed Deputy Secretary for the Environment, Transport and Works (Works)) from October 2001 to June 2006, and Commissioner of Insurance from July 2006 to September 2009. He was Postmaster General from September 2009 to September 2011.