| Company | Timeline | Status | |
| Limbermist Limited Director • Engineer | 9 Sep 2002←7 Years→4 Jul 2010 | Active | |
| Oakforest Limited Secretary • Unreported | 1 Jan 2000←26 Years→Current | Active | |
| Oakforest Limited Director • Engineer | 1 Feb 1991←35 Years→Current | Active | |
| Oakforest Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
