| Company | Timeline | Status | |
| Lantoom Limited Director • Quarryman | 22 Dec 2000←17 Years→18 Jun 2018 | Dissolved | |
| Roseland Aggregates Limited Director • Director | 28 Dec 1992←9 Years→23 Apr 2002 | Dissolved | |
Roseland Asphalt Limited Director • Director | 5 Nov 1992←9 Years→23 Apr 2002 | Dissolved | |
| Roseland Plant Co.Limited Director • Director | 30 Sep 1992←9 Years→12 Jul 2002 | Active | |
