| Company | Timeline | Status | |
| I2 Analytical Limited Director • Business Manager | 8 May 2003←5 Years→22 Oct 2008 | Active | |
| Vintec Laboratories Limited Director • Technical Director | 6 Apr 1994←29 Years→14 Sep 2023 | Active | |
| Vintec Laboratories Limited Secretary • Unreported | 6 Apr 1991←32 Years→14 Sep 2023 | Active | |
