| Company | Timeline | Status | |
Hess Diamond Tool Co., Ltd Director • Director  | 4 Dec 2015←4 Years→29 Sep 2020  | Dissolved  | |
| Yorkshire Diamond Products Limited Director • Company Secretary  | 8 Nov 1991←34 Years→Current  | Active  | |
| Yorkshire Diamond Products Limited Secretary • Unreported  | 8 Nov 1991←21 Years→5 Mar 2013  | Active  | |
