Exhibit 99.1
AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13D
The undersigned hereby agree as follows:
| (i) | Each of them is eligible to use the Schedule 13D to which this Exhibit is attached, and such Schedule 13D is filed on behalf of each of them; and | |
| (ii) | Each of them is responsible for the timely filing of such Schedule 13D and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate. |
Date: December 2, 2011
| PP IV MOUNTAIN PASS II, LLC | ||||
| By: | Pegasus Investors IV, L.P., its managing member | |||
| By: | Pegasus Investors IV GP, L.L.C., its general partner | |||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
| PP IV MP AIV 1, LLC | ||||
| By: | Pegasus Investors IV, L.P., its managing member | |||
| By: | Pegasus Investors IV GP, L.L.C., its general partner | |||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
Exhibit 99.1
| PP IV MP AIV 2, LLC | ||||
| By: | Pegasus Investors IV, L.P., its managing member | |||
| By: | Pegasus Investors IV GP, L.L.C., its general partner | |||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
| PP IV MP AIV 3, LLC | ||||
| By: | Pegasus Investors IV, L.P., its managing member | |||
| By: | Pegasus Investors IV GP, L.L.C., its general partner | |||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
| PEGASUS PARTNERS IV, L.P. | ||||
| By: | Pegasus Investors IV, L.P., its general partner | |||
| By: | Pegasus Investors IV GP, L.L.C., its general partner | |||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
| PEGASUS PARTNERS IV (AIV), L.P. | ||||
| By: | Pegasus Investors IV, L.P., its general partner | |||
| By: | Pegasus Investors IV GP, L.L.C., its general partner | |||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
Exhibit 99.1
| PEGASUS INVESTORS IV, L.P. | ||||
| By: | Pegasus Investors IV GP, L.L.C., its general partner | |||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
| PEGASUS INVESTORS IV GP, L.L.C. | ||||
| By: | /s/ Alec Machiels | |||
| Name: Alec Machiels | ||||
| Title: Vice President | ||||
| PEGASUS CAPITAL LLC | ||||
| By: | /s/ Craig Cogut | |||
| Name: Craig Cogut | ||||
| Title: President | ||||
| /s/ Craig Cogut | ||||
| Craig Cogut | ||||
Exhibit 99.1