Transaction in Own Shares

Rio Tinto PLC
08 August 2006

Rio Tinto plc
Transaction in Own Shares
8 August 2006


Rio Tinto plc announces today that it has transferred to participants in its
employee share schemes the following number of its ordinary shares of 10p each,
which were previously held as treasury shares.


Ordinary Shares

Date of transfer:                               8 August 2006

Number of ordinary shares transferred:          1,793

Highest transfer price per share:               1263p

Lowest transfer price per share:                1263p


Following the above purchase, Rio Tinto plc holds 29,421,496 ordinary shares as
treasury shares.  The total number of ordinary shares in issue (excluding shares
held as treasury shares) is 1,042,857,597.



For further information, please contact:

Investor Relations
Nigel Jones
Office:  [phone]
Mobile:  [phone]

Secretarial Department
Matthew Whyte
Office:  [phone]

Website:  www.riotinto.com


                      This information is provided by RNS
            The company news service from the London Stock Exchange