| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | TOWER ENERGY RESOURCES LIMITED | 🇬🇧United Kingdom | Activa | 24/3/2026 – 25/12/2007 |
| Cargo | TOWER COLLIERY LIMITED | 🇬🇧United Kingdom | Activa | 25/2/2026 – 25/12/2007 |
| Cargo | WELSH DRAGON COAL LIMITED | 🇬🇧United Kingdom | Activa | 23/3/2026 – 10/3/2004 |
| Cargo | WELSH DRAGON COAL LIMITED | 🇬🇧United Kingdom | Activa | 23/3/2026 – 10/3/2004 |
| Cargo | TOWER COLLIERY LIMITED | 🇬🇧United Kingdom | Activa | 25/2/2026 – 10/3/2004 |
25/12/2007
resigned
7/4/2006
appointed
19/10/2000
appointed