| Company | Timeline | Status | |
| Dunpal Ltd Director • Civil Engineer | 4 Jan 2005←9 Years→26 Sep 2014 | Dissolved | |
| Dunpal Ltd Secretary • Unreported | 24 Jul 1998←16 Years→26 Sep 2014 | Dissolved | |
| Specpro Ltd Director • Civil Engineer | 1 Apr 1997←28 Years→Current | Active | |
| Specpro Ltd Director • Civil Engineer | 1 Apr 1997←27 Years→12 Apr 2024 | Active | |
| Specpro Ltd Secretary • Unreported | 1 Apr 1996←2 Years 6 Months→1 Oct 1998 | Active | |
| Treasure Chest Limited Secretary • Civil Engineer | 8 Dec 1994←28 Years→28 Mar 2023 | Dissolved | |
| Treasure Chest Limited Director • Civil Engineer | 8 Dec 1994←28 Years→28 Mar 2023 | Dissolved | |
