| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | TOWER REGENERATION LIMITED | 🇬🇧United Kingdom | Activa | 31/5/2026 – 28/2/2019 |
| Cargo | FORWARD SOUND LIMITED | — | Activa | 2/6/2026 – 1/7/2014 |
| Cargo | ROCPOWER LIMITED | — | Activa | 8/1/2026 – 1/7/2014 |
| Cargo | ROCFUEL LIMITED | — | Activa | 7/6/2026 – 1/7/2014 |
| Cargo | POWER MINERALS UK HOLDINGS LIMITED | — | Disuelta | 2/6/2026 – 28/5/2010 |
| Cargo | POWER MINERALS LIMITED | — | Activa | 2/6/2026 – 28/5/2010 |
| Cargo | MALTBY COLLIERY LIMITED | — | Activa | 9/6/2026 – 1/7/2014 |
| Cargo | EASTGATE MATERIALS HANDLING LIMITED | — | Disuelta | 4/6/2026 – 1/7/2014 |
28/2/2019
resigned
1/7/2014
resigned
18/1/2007
appointed