Important update in Rio Tinto bid for Riversdale

Important update in Rio Tinto bid for Riversdale

Important update in Rio Tinto bid for Riversdale

. Offer price increased to $16.50
. Offer period automatically extended by two weeks to 20 April 2011

Rio Tinto Jersey Holdings 2010 Limited (RTJ), a wholly-owned subsidiary of the Rio Tinto Group, has obtained an interest in 49.49 per cent of all the shares of Riversdale Mining Limited (Riversdale) as of a short time ago. As a result, RTJ has now increased the Offer price under its takeover Offer (Offer) for Riversdale to $16.50 cash per share.

Given the Offer is now unconditional, Riversdale shareholders who have accepted the Offer on or before today’s date will be paid the Offer price of $16.50 per share by 13 April 2011. Riversdale shareholders who accept the Offer after today’s date will be paid the Offer price of $16.50 within five business days of that acceptance being received.

Also, in accordance with section 624(2) of the Corporations Act (as modified), the Offer period has been automatically extended for a period of 14 days as a result of the Offer price increase, so that it will now end at 7.00pm (Sydney time) on Wednesday, 20 April 2011 (unless further extended).

The Handling Fee described in RTJ’s Third Supplementary Bidder’s Statement will apply throughout the extended Offer period. RTJ may extend the period during which the Handling Fee will apply by further announcement released to the Australian Securities Exchange. RTJ urges all Riversdale shareholders who have not yet accepted this unanimously recommended and unconditional Offer to do so as soon as possible.

Enclosed with this announcement are the following documents:

. a notice under section 650D of the Corporations Act regarding the increase in the Offer price

. a notice under section 624(2) of the Corporations Act regarding the automatic extension to the Offer period; and

. a letter to Riversdale shareholders.
The Offer period will close at 7.00pm (Sydney, Australia time) on 20 April 2011, unless extended.

About Rio Tinto

Rio Tinto is a leading international mining group headquartered in the UK, combining Rio Tinto plc, a London and NYSE listed company, and Rio Tinto Limited, which is listed on the Australian Securities Exchange.

Rio Tinto’s business is finding, mining, and processing mineral resources. Major products are aluminium, copper, diamonds, energy (coal and uranium), gold, industrial minerals (borax, titanium dioxide, salt, talc) and iron ore. Activities span the world but are strongly represented in Australia and North America with significant businesses in South America, Asia, Europe and southern Africa.

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