| Company | Timeline | Status | |
| Penlee Residents Management Company Limited Director • Chartered Engineer | 30 Sep 1997←3 Years→28 Feb 2001 | Active | |
| Gatechime Property Management Limited Director • Chartered Engineer | 15 Oct 1991←12 Years→15 Oct 2003 | Active | |
| Power Feed Limited Director • Company Director | 31 Dec 1990←5 Months→31 May 1991 | Dissolved | |
