| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Kopernik Global Investors, LLC | 7.4% | 12,906,244 | 0 | 11,833,270 | /s/ Sarah L. Bertrand | Sarah L. Bertrand/General Counsel and Chief Compliance Officer | |
| David B. Iben | 7.4% | 12,906,244 | 0 | 11,833,270 | /s/ David B. Iben by Sarah L. Bertrand, power of attorney | David B. Iben by Sarah L. Bertrand, power of attorney |