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: 1345 AVENUE OF THE AMERICAS 42nd Floor New York, New York 10105 MHR INSTITUTIONAL ADVISORS III LLC By: /s/ Janet Yeung ------------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS 42nd Floor New York, New York 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, New York 10105 MHR HOLDINGS LLC By: /s/ Janet Yeung ------------------------------- Name: Janet Yeung Title: Authorized Signatory Address: 1345 AVENUE OF THE AMERICAS 42nd Floor New York, New York 10105