| Company | Timeline | Status | |
| Rone House Management Company Limited Director • Engineer | 9 Nov 2019←6 Years→20 Nov 2025 | Active | |
| Armstrong Court Management Company Limited Director • Engineer | 20 Feb 2000←24 Years→1 Oct 2024 | Active | |
Eatec Limited Director • Engineer | 17 Dec 1999←18 Years→13 Feb 2018 | Dissolved | |
| Eatec Holdings Limited Director • Engineer | 25 Jun 1991←33 Years→21 Jul 2024 | Dissolved | |
