Exhibit 99 MHR CAPITAL PARTNERS MASTER ACCOUNT LP By: MHR Advisors LLC, its General Partner By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHR ADVISORS LLC By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHR INSTITUTIONAL PARTNERS II LP By: MHR Institutional Advisors II LLC, its General Partner By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHR INSTITUTIONAL PARTNERS IIA LP By: MHR Institutional Advisors II LLC, its General Partner By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHR INSTITUTIONAL ADVISORS II LLC By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHRC LLC By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHRC II LLC By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHR FUND MANAGEMENT LLC By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105 MHR HOLDINGS LLC By: /s/ Janet Yeung ------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS, 42ND FLOOR NEW YORK, NY 10105