Exhibit 99.1
Signatures
     
KKR Fund Holdings L.P.
  June 6, 2011
 
   
By: KKR Fund Holdings GP Limited
   
Its: General Partner
   
 
   
/s/ Richard J. Kreider
 
   
Name: Richard J. Kreider
   
Title: Attorney-in-fact for William J. Janetschek, Director
 
   
KKR Fund Holdings GP Limited
  June 6, 2011
 
   
/s/ Richard J. Kreider
 
   
Name: Richard J. Kreider
   
Title: Attorney-in-fact for William J. Janetschek, Director
 
   
KKR Group Holdings L.P.
  June 6, 2011
 
   
By: KKR Group Limited
   
Its: General Partner
   
 
   
/s/ Richard J. Kreider
 
   
Name: Richard J. Kreider
   
Title: Attorney-in-fact for William J. Janetschek, Director
 
   
KKR Group Limited
  June 6, 2011
 
   
/s/ Richard J. Kreider
 
   
Name: Richard J. Kreider
   
Title: Attorney-in-fact for William J. Janetschek, Director
 
   
KKR & Co. L.P.
  June 6, 2011
 
   
By: KKR Management LLC
   
Its: General Partner
   
 
   
/s/ Richard J. Kreider
 
   
Name: Richard J. Kreider
   
Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer
 
   
KKR Management LLC
  June 6, 2011
 
   
/s/ Richard J. Kreider
 
   
Name: Richard J. Kreider
   
Title: Attorney-in-fact for William J. Janetschek, Chief Financial Officer
 
   
KKR SP Limited
  June 6, 2011
 
   
/s/ Richard J. Kreider
 
   
Name: Richard J. Kreider
   
Title: Attorney-in-fact for Johannes P. Huth, Director