| Company | Timeline | Status | |
| J.F.Appelbe & Co.Limited Director • Engineer | 22 Oct 2003←2 Years 10 Months→18 Aug 2006 | Liquidation | |
| TWL Precision Limited Director • Engineer | 22 Nov 1991←14 Years→31 May 2006 | Dissolved | |
| TWL Precision Limited Secretary • Unreported | 22 Nov 1991←14 Years→31 May 2006 | Dissolved | |
