| Company | Timeline | Status | |
| TVCO Limited Secretary • Engineer | 1 Apr 2006←7 Years→1 Oct 2013 | Active | |
| Unicol Limited Secretary • Engineer | 17 Jan 2005←18 Years→11 Sep 2023 | Active | |
| Unicol Limited Director • Engineer | 1 Jul 2004←19 Years→11 Sep 2023 | Active | |
| Tecma Limited Secretary • Engineer | 1 Jul 2004←19 Years→11 Sep 2023 | Active | |
