| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| MHR INSTITUTIONAL PARTNERS III LP | 10% | 1,678,258 | 1,678,258 | 0 | /s/ Janet Yeung | Authorized Signatory | |
| MHR INSTITUTIONAL ADVISORS III LLC | 10% | 1,678,258 | 1,678,258 | 0 | /s/ Janet Yeung | Authorized Signatory | |
| MHR FUND MANAGEMENT LLC | 15% | 2,509,898 | 2,509,898 | 0 | /s/ Janet Yeung | Authorized Signatory | 0001277742 |
| MHR HOLDINGS LLC | 15% | 2,509,898 | 2,509,898 | 0 | /s/ Janet Yeung | Authorized Signatory | |
| MARK H. RACHESKY, M.D. | 15% | 2,524,509 | 2,524,509 | 0 | /s/ Janet Yeung | Attorney-in-Fact | 0001194368 |