EXHIBIT 99 MHR INSTITUTIONAL PARTNERS III LP By: MHR Institutional Advisors III LLC, its General Partner By: /s/ Janet Yeung ------------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 40 West 57th Street 24th Floor New York, New York 10019 MHR INSTITUTIONAL ADVISORS III LLC By: /s/ Janet Yeung ------------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 40 West 57th Street 24th Floor New York, New York 10019 MHR FUND MANAGEMENT LLC By: /s/ Janet Yeung ------------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 40 West 57th Street 24th Floor New York, New York 10019 MHR HOLDINGS LLC By: /s/ Janet Yeung ------------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 40 West 57th Street 24th Floor New York, New York 10019