| Company | Timeline | Status | |
Tkmtelco Limited Secretary • Unreported | 16 Aug 2005←11 Years→4 Oct 2016 | Dissolved | |
| Kee Applied Systems Limited Secretary • Unreported | 10 Oct 1991←34 Years→Current | Active | |
| Kee Applied Systems Limited Director • Assistant | 10 Oct 1991←11 Years→27 Sep 2003 | Active | |
| Kee Applied Systems Limited Secretary • Unreported | 1 Jan 1970←55 Years→9 Oct 2025 | Active | |
