| Company | Timeline | Status | |
| Linkam Scientific Instruments Limited Director • Technical Director | 30 Jan 1992←33 Years→Current | Active | |
| Edmc Management Limited Director • Company Director | 31 Mar 1991←34 Years→Current | Active | |
| Edmc Management Limited Director • Unreported | 1 Jan 1970←55 Years→27 Oct 2025 | Active | |
