| Period of LegCo service |
| 9 October 1991 - 29 January 1992 |
Appointed (Official - Secretary for Planning, Environment and Lands) |
| 12 June 1991 - 12 June 1991 |
Appointed (Ex officio - Acting Chief Secretary) |
| 6 February 1991 - 6 February 1991 |
Appointed (Ex officio - Acting Chief Secretary) |
| 11 October 1989 - 22 August 1991 |
Appointed (Official - Secretary for Planning, Environment and Lands) |
| 12 October 1988 - 19 July 1989 |
Appointed (Official - Secretary for Lands and Works) |
| 8 October 1986 - 25 August 1988 |
Appointed (Official - Secretary for Lands and Works) |
| 9 December 1981 - 27 April 1983 |
Appointed (Official - Regional Secretary (Hong Kong and Kowloon), City and New Territories Administration) |
| 1 October 1980 - 25 November 1981 |
Appointed (Official - Director of Home Affairs) |
| 20 June 1979 - 1 August 1979 |
Appointed (Official - Acting Secretary for the Environment) |
| 10 August 1977 - 10 August 1977 |
Appointed (Official - Acting Secretary for the Environment) |