| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | MALTBY COLLIERY LIMITED | — | Activa | 9/6/2026 – 11/2/2009 |
| Cargo | FORWARD SOUND LIMITED | — | Activa | 2/6/2026 – 23/2/2009 |
| Cargo | POWER MINERALS LIMITED | — | Activa | 2/6/2026 – 23/2/2009 |
| Cargo | POWER MINERALS UK HOLDINGS LIMITED | — | Disuelta | 2/6/2026 – 23/2/2009 |
| Cargo | ROCFUEL LIMITED | — | Activa | 7/6/2026 – 23/2/2009 |
| Cargo | ROCPOWER LIMITED | — | Activa | 8/1/2026 – 23/2/2009 |
23/2/2009
resigned
11/2/2009
resigned
8/12/2007
appointed