| Company | Timeline | Status | |
| Rockhard Concrete Company Limited Secretary • Unreported | 15 Jun 1998←26 Years→24 Dec 2024 | Dissolved | |
| Rockbond SCP Limited Secretary • Secretary | 1 Dec 1997←27 Years→Current | Active | |
| Ecoscreed Trading Limited Secretary • Unreported | 1 Jan 1970←23 Years→22 Nov 1993 | Active | |
