| Company | Timeline | Status | |
| Alpha Park Management Company Limited Director • Electrical Engineer | 18 Jan 1996←29 Years→Current | Active | |
| Design Selectric Limited Director • Electrical Engineer | 1 Mar 1991←34 Years→Current | Active | |
| Design Selectric Limited Secretary • Unreported | 1 Mar 1991←10 Years→21 Sep 2001 | Active | |
