MHR CAPITAL PARTNERS MASTER ACCOUNT LP

By:	MHR Advisors LLC,
	its General Partner
By:	/s/ Hal Goldstein
	Name:       Hal Goldstein
	Title:         Vice President

Address: 40 West 57th Street
24th Floor
New York, NY 10019

MHR ADVISORS LLC

By:	/s/ Hal Goldstein
	Name:       Hal Goldstein
	Title:         Vice President

Address: 40 West 57th Street
24th Floor
New York, NY 10019

MHR INSTITUTIONAL PARTNERS II LP

By:	MHR Institutional Advisors II LLC,
	its General Partner
By:	/s/ Hal Goldstein
	Name:       Hal Goldstein
	Title:         Vice President

Address: 40 West 57th Street
24th Floor
New York, NY 10019

MHR INSTITUTIONAL PARTNERS IIA LP

By:	MHR Institutional Advisors II LLC,
	its General Partner
By:	/s/ Hal Goldstein
	Name:       Hal Goldstein
	Title:         Vice President

Address: 40 West 57th Street
24th Floor
New York, NY 10019

MHR INSTITUTIONAL ADVISORS II LLC

By:	/s/ Hal Goldstein
	Name:       Hal Goldstein
	Title:         Vice President

Address: 40 West 57th Street
24th Floor
New York, NY 10019

MHR FUND MANAGEMENT LLC

By:	/s/ Hal Goldstein
	Name:       Hal Goldstein
	Title:         Managing Principal

Address: 40 West 57th Street
24th Floor
New York,NY 10019