Rio Tinto Regulatory News (RIO)

Rio Tinto plc

1 June 2012

TOTAL VOTING RIGHTS AND ISSUED CAPITAL

In accordance with the FSA's Disclosure and Transparency Rule 5.6.1R, Rio Tinto plc notifies the market that as of 31 May 2012:

1.         Rio Tinto plc's issued share capital comprised 1,425,375,466 Ordinary shares of 10p each, each with one vote.

2.         14,409,899 Ordinary shares of 10p each are held in treasury.  These shares are not taken into consideration in relation to the payment of dividends and voting at shareholder meetings.

3.         Accordingly the total number of voting rights in Rio Tinto plc is 1,410,965,567 which figure may be used by shareholders (and others with notification obligations) as the denominator for the calculation by which they will determine if they are required to notify their interest in, or a change to their interest in, Rio Tinto plc under the FSA's Disclosure and Transparency Rules.

Further information:

Ines Watson

Assistant Company Secretary

Office: +44 (0) 20 7781 1599

email: ines.watson@riotinto.com

Note:

As at the date of this announcement Rio Tinto plc had also issued one Special Voting Share of 10p and one DLC Dividend Share of 10p in connection with its dual listed companies ('DLC') merger with Rio Tinto Limited which was designed to place the shareholders of both companies in substantially the same position as if they held shares in a single enterprise owning all of the assets of both companies.