| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | SAFEROCK HEALTH LTD | — | Disuelta | 17/5/2026 – presente |
| Cargo | SAFEROCK MINERALS LTD | — | Disuelta | 17/5/2026 – 2/1/2013 |
| Cargo | SAFEROCK FEED LTD | — | Disuelta | 17/5/2026 – presente |
| Cargo | SAFEROCK COMPOST LTD | 🇬🇧United Kingdom | Disuelta | 17/5/2026 – presente |
| Cargo | ROCK MINERALS (HOLDINGS) LTD | — | Disuelta | 17/5/2026 – presente |
| Cargo | POTASHPLUS FEED LTD | 🇬🇧United Kingdom | Disuelta | 17/5/2026 – presente |
| Cargo | POTASHPLUS ROCK MINERALS LTD | 🇬🇧United Kingdom | Disuelta | 17/5/2026 – presente |
| Cargo | POTASHPLUS SOIL CONDITIONER LTD | 🇬🇧United Kingdom | Disuelta | 17/5/2026 – presente |
| Cargo | GEO-GRIT LIMITED | 🇬🇧United Kingdom | Disuelta | 18/5/2026 – presente |
| Cargo | ROCK MINERALS LIMITED | — | Disuelta | 3/2/2026 – 7/6/2013 |
| Cargo | GEO-MINERALS (UK) LIMITED | — | Disuelta | 21/5/2026 – 16/1/2012 |
| Cargo | GEO-MINERALS (HOLDINGS) LIMITED | — | Disuelta | 21/5/2026 – 16/1/2012 |
| Cargo | DRAVEN SOLUTIONS LIMITED | — | Disuelta | 8/6/2026 – presente |
7/6/2013
resigned
2/1/2013
resigned
13/1/2010
appointed