| Company | Timeline | Status | |
| International Door Controls Limited Secretary • Engineer | 7 Nov 2005←20 Years→Current | Active | |
| Merit Components Limited Secretary • Engineer | 7 Nov 2005←19 Years→24 Dec 2024 | Dissolved | |
| International Door Controls Limited Director • Engineer | 18 Jan 2005←20 Years→Current | Active | |
| Merit Components Limited Director • Engineer | 18 Jan 2005←19 Years→24 Dec 2024 | Dissolved | |
| Merit Components Limited Director • Director | 16 Jan 1991←4 Years→30 Jun 1995 | Dissolved | |
