| Company | Timeline | Status | |
| Mackwell Electronics Limited Director • Director | 31 Dec 1991←4 Years→30 Jun 1996 | Active | |
| Industry Committee For Emergency Lighting Limited Director • Company Director | 19 Jul 1991←4 Years→5 Jun 1996 | Active | |
| Mackwell Electronics Limited Director • Unreported | 1 Jan 1970←26 Years→30 Jun 1996 | Active | |
