EX-1 2 v228713_ex1.htm Unassociated Document
 
EXHIBIT 1
 
 
JOINT FILING AGREEMENT
 
 
Each of the undersigned hereby agrees that this Amendment No. 9 to the statement on Schedule 13D is being filed with the United States Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k) under the United States Securities Exchange Act of 1934, as amended.
 
Date: July 15, 2011
 
  Glencore AG  
       
 
By:
/s/ Stuart Cutler
  
 
Name:
 Stuart Cutler  
 
Title:
 Officer  
       
 
By:
/s/ Andreas Hubmann
  
 
Name:
 Andreas Hubmann  
 
Title:
 Director  
 
  Glencore International AG  
       
 
By:
/s/ Stefan Peter
  
 
Name:
 Stefan Peter  
 
Title:
 Officer  
       
 
By:
/s/ Stuart Cutler
  
 
Name:
Stuart Cutler
  
 
Title:
 Officer   
 
  Glencore International plc  
       
 
By:
/s/ Steven Kalmin
  
 
Name:
 Steven Kalmin  
 
Title:
 Director