| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Telemark Asset Management, LLC | 4.1% | 327,824 | 0 | 327,824 | /s/ Brian C. Miley | Brian C. Miley, Chief Financial Officer | |
| Telemark Fund, LP | 4.1% | 327,824 | 0 | 327,824 | By: Telemark Asset Management, LLC, investment adviser, /s/ Brian C. Miley | Brian C. Miley, Chief Financial Officer | |
| Colin S. McNay | 4.1% | 327,824 | 0 | 327,824 | /s/ Colin S. McNay | Colin S. McNay, President and sole owner of Telemark Asset Management, LLC |