| Company | Timeline | Status | |
| Optical Sciences Limited Director • Unreported | 1 Oct 2004←21 Years→Current | Active | |
| Enviroval Limited Secretary • Unreported | 17 Mar 2001←24 Years→Current | Active | |
| Optical Sciences Limited Secretary • Unreported | 6 Dec 1995←26 Years→1 Jul 2022 | Active | |
