| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | NEROS Netzwerk mineralische Rohstoffe Schweiz Genossenschaft in Liquidation | 🇨🇭Switzerland | Disuelta | 20/12/2019 – presente |
| Cargo | Iff AG | 🇨🇭Switzerland | Activa | 30/7/2018 – presente |
| Cargo | Fr. Blaser AG, Hasle | 🇨🇭Switzerland | Activa | 30/7/2018 – presente |
20/12/2019
appointed
30/7/2018
appointed