| Company | Timeline | Status | |
Koartwork Limited Director • Engineer | 17 Nov 2015←4 Years→18 Feb 2020 | Dissolved | |
| Triac Air Conditioning Service Limited Director • Unreported | 17 Dec 1997←28 Years→Current | Active | |
| Triac Air Conditioning Limited Director • Air Conditioning Engineer | 25 Nov 1993←13 Years→11 Apr 2007 | Active | |
