Company:  RIO TINTO PLC (RIO)
Form Type:  POSASR
Filing Date:  3/16/2012 
CIK:  0000863064 
Address:  2 EASTBOURNE TERRACE 
City, State, Zip:  LONDON, W2 6LG,  00000 
Telephone:  44 20 7781 1623 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$44.00  
Change: 
0.24 (0.55%)  
Trade Time: 
May 17  
Market Cap: 
$62.08B
Description of Business
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  FORM POSASR
  EXHIBIT 4.1
  EXHIBIT 5.1
  EXHIBIT 5.2
  EXHIBIT 5.3
  EXHIBIT 8.2
  EXHIBIT 8.3
  EXHIBIT 12
    RATIO COMPUTATION
  EXHIBIT 23.1
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 24.1
    POWER OF ATTORNEY
  EXHIBIT 24.2
    Power of Attorney
  EXHIBIT 25