BLACKSTONE MANAGEMENT ASSOCIATES IV LLC

• 10% owner at Nalco Holding CO · on record since Mar 23, 2006
• 10% owner at UICI · on record since Apr 17, 2006
• 10% owner at TRW AUTOMOTIVE HOLDINGS CORP · on record since Jun 4, 2007
• 10% owner at TEAM HEALTH HOLDINGS INC. · on record since Dec 16, 2009
• 10% owner at BankUnited, Inc. · on record since Jan 27, 2011
• 10% owner at VANGUARD HEALTH SYSTEMS INC · on record since Jun 21, 2011
• See footnotes 1, 2, 3 at Nalco Holding CO · on record since Nov 19, 2004
• 10% owner at Foundation Coal Holdings, Inc. · on record since Dec 7, 2004
• See Remarks at Foundation Coal Holdings, Inc. · on record since Sep 20, 2005