| Company | Timeline | Status | |
| Technical Affairs Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Technical Affairs Limited Secretary • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Electrical Affairs Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| Electrical Affairs Limited Secretary • Unreported | 1 Jan 1970←55 Years→Current | Active | |
