Transaction in Own Shares

Rio Tinto PLC
21 February 2007

Transaction in own shares



21 February 2007



Rio Tinto plc today acquired through JPMorgan Cazenove Limited 500,000 of its
ordinary shares at an average price of 2796.2980 pence per ordinary share. The
purchased shares will all be held as treasury shares.


Following the above purchase, Rio Tinto plc holds 57,066,002 ordinary shares as
treasury shares. The total number of ordinary shares in issue (excluding shares
held as treasury shares) is 1,014,643,323.


For further information, please contact:


Investor Relations


Nigel Jones


Office: [phone]


Mobile: [phone]


Secretarial Department


Matthew Whyte


Office: [phone]


Website: www.riotinto.com




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