| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | DEREK WALKER CONSULTANTS LTD | 🇬🇧United Kingdom | Disuelta | 3/4/2026 – presente |
| Cargo | MARNOCH MCKNIGHT RESOURCES LIMITED | — | Disuelta | 23/5/2026 – presente |
| Cargo | D & K CONSULTANCY TRADING LIMITED | — | Disuelta | 25/5/2026 – presente |
| Cargo | THE SCOTTISH COAL (DEEP MINE) COMPANY LIMITED | 🇬🇧United Kingdom | Activa | 10/12/2025 – presente |
5/10/2020
appointed
16/7/2012
appointed
7/1/2000
appointed