| Company | Timeline | Status | |
| Guthriecourt Property Management Limited Secretary • Civil Engineer  | 1 May 2008←14 Years→16 Jan 2023  | Active  | |
| Guthriecourt Property Management Limited Director • Civil Engineer  | 3 Dec 2001←21 Years→16 Jan 2023  | Active  | |
| Guthriecourt Property Management Limited Director • Civil Servant  | 3 Dec 2001←1 Day→3 Dec 2001  | Active  | |
| Ross Mansions Management Limited Director • Civil Engineer  | 26 Nov 1995←11 Years→25 Mar 2007  | Active  | |
