| Company | Timeline | Status | |
| Firetracer Suppression Limited Director • Retired | 10 Jul 1992←27 Years→28 Aug 2019 | Active | |
| Firetracer Suppression Limited Secretary • Government Service | 10 Jul 1992←27 Years→28 Aug 2019 | Active | |
Aero Engineering Design Limited Secretary • Unreported | 21 Sep 1991←22 Years→11 Feb 2014 | Dissolved | |
