| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | ADVANCED FUELS LTD | 🇬🇧United Kingdom | Disuelta | 31/3/2026 – presente |
| Cargo | THE STEAM ENGINE COMPANY LTD | 🇬🇧United Kingdom | Disuelta | 14/4/2026 – presente |
| Cargo | OIL CONTAINMENT SYSTEMS INC. LTD | 🇬🇧United Kingdom | Activa | 30/4/2026 – presente |
| Cargo | ENHANCED HYDROCARBON FUELS LTD. | 🇬🇧United Kingdom | Disuelta | 19/4/2026 – presente |
| Cargo | ADVANCED HYDROCARBON FUELS LTD. | 🇬🇧United Kingdom | Activa | 9/5/2026 – presente |
16/7/2021
appointed
18/9/2018
appointed
21/7/2014
appointed