| Company | Timeline | Status | |
| Oak Products International Limited Secretary • Co Secretary | 26 Feb 2005←20 Years→Current | Active | |
| Oak Products Limited Secretary • Secretary | 24 Jan 2003←21 Years→1 Mar 2024 | Dissolved | |
| Timberplan Contracts Limited Secretary • Secretary | 24 Jan 2003←22 Years→Current | Active | |
| Oakmasters Limited Secretary • Secretary | 26 Jan 2001←24 Years→Current | Active | |
| Timberplan Products Limited Secretary • Unreported | 19 Sep 1996←29 Years→Current | Active | |
