| Company | Timeline | Status | |
| TTL Electronics Limited Secretary • Secretary | 1 Jun 2005←10 Years→28 Aug 2015 | Active | |
| Semitronics Limited Secretary • Secretary | 1 Jun 2005←10 Years→28 Aug 2015 | Active | |
| Testime Technology Limited Secretary • Secretary | 1 Jun 2005←2 Years 2 Months→1 Aug 2007 | Active | |
