| Company | Timeline | Status | |
| Nightingale Residents' Management Limited Secretary • Unreported | 20 Jul 1996←5 Years→28 Mar 2002 | Active | |
| Raner Reinforcements Limited Director • General Manager | 13 Apr 1992←9 Years→28 Mar 2002 | Active | |
| Hy-Ten Group Limited Director • General Manager | 13 Apr 1992←9 Years→28 Mar 2002 | Active | |
| Hy-Ten Limited Director • General Manager | 13 Apr 1992←9 Years→28 Mar 2002 | Active | |
