| Company | Timeline | Status | |
| Rainbow Technology Systems Limited Director • Engineer | 13 Jun 2007←15 Years→30 Aug 2022 | Dissolved | |
| Teknek (China) Limited Director • Director | 19 Jun 2002←9 Years→8 Jul 2011 | Active | |
| Mekall Ltd Director • Engineer | 26 May 2000←23 Years→21 Nov 2023 | Dissolved | |
T H Group Limited Director • Engineer | 24 May 2000←15 Years→28 Nov 2015 | Dissolved | |
| Teknek (Japan) Limited Director • Engineer | 9 Nov 1999←11 Years→8 Jul 2011 | Dissolved | |
Teknek Limited Director • Engineer | 8 May 1989←22 Years→8 Jul 2011 | Dissolved | |
