| Company | Timeline | Status | |
| Labcold Limited Director • Chartered Accountant | 18 Aug 1991←8 Years→30 Sep 1999 | Active | |
| Bytec Embedded Limited Director • Chartered Accountant | 31 Mar 1991←4 Months→31 Jul 1991 | Active | |
| Bytec Embedded Limited Director • Unreported | 1 Jan 1970←21 Years→31 Jul 1991 | Active | |
