| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | SAFEROCK HEALTH LTD | — | Dissolved | 17/05/2026 – present |
| Officer | SAFEROCK MINERALS LTD | — | Dissolved | 17/05/2026 – 02/01/2013 |
| Officer | SAFEROCK FEED LTD | — | Dissolved | 17/05/2026 – present |
| Officer | SAFEROCK COMPOST LTD | 🇬🇧United Kingdom | Dissolved | 17/05/2026 – present |
| Officer | ROCK MINERALS (HOLDINGS) LTD | — | Dissolved | 17/05/2026 – present |
| Officer | POTASHPLUS FEED LTD | 🇬🇧United Kingdom | Dissolved | 17/05/2026 – present |
| Officer | POTASHPLUS ROCK MINERALS LTD | 🇬🇧United Kingdom | Dissolved | 17/05/2026 – present |
| Officer | POTASHPLUS SOIL CONDITIONER LTD | 🇬🇧United Kingdom | Dissolved | 17/05/2026 – present |
| Officer | GEO-GRIT LIMITED | 🇬🇧United Kingdom | Dissolved | 18/05/2026 – present |
| Officer | ROCK MINERALS LIMITED | — | Dissolved | 03/02/2026 – 07/06/2013 |
| Officer | GEO-MINERALS (UK) LIMITED | — | Dissolved | 21/05/2026 – 16/01/2012 |
| Officer | GEO-MINERALS (HOLDINGS) LIMITED | — | Dissolved | 21/05/2026 – 16/01/2012 |
| Officer | DRAVEN SOLUTIONS LIMITED | — | Dissolved | 08/06/2026 – present |
07/06/2013
resigned
02/01/2013
resigned
13/01/2010
appointed