| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Sentient Global Resources Fund IV, L.P. | 0% | 0 | 0 | 0 | /s/ Mike de Leeuw | Mike de Leeuw, Director | 0001520861 |
| SENTIENT GP IV, LP | 0% | 0 | 0 | 0 | /s/ Mike de Leeuw | Mike de Leeuw, Director | 0001580229 |
| SENTIENT EXECUTIVE GP IV LTD | 0% | 0 | 0 | 0 | /s/ Mike de Leeuw | Mike de Leeuw, Director | 0001532092 |