| Company | Timeline | Status | |
| OLD Brewery Court Management Company Limited Director • Electrician | 9 Sep 2005←4 Years→25 Nov 2009 | Active | |
| Hercules Trading Limited Director • Electrical Engineer | 31 Dec 1991←34 Years→Current | Active | |
| Hiwean Limited Director • Electrical Engineer | 31 Dec 1990←34 Years→13 May 2025 | Dissolved | |
