Hathor Exploration shareholders urged to tender their shares to Rio Tinto offer

MONTRÉAL, Nov. 28, 2011 /CNW Telbec/ - Hathor Exploration Limited shareholders are urged to promptly tender their common shares to Rio Tinto's increased offer, made through an indirect wholly-owned Canadian subsidiary, to acquire all the common shares of Hathor for C$4.70 per common share in cash before 5:00 pm (Toronto time) on 30 November 2011, when the offer expires unless extended or withdrawn.

Hathor's board of directors unanimously recommends that Hathor shareholders tender their common shares to Rio Tinto's increased offer.  Rio Tinto's recommended offer values Hathor at approximately C$654 million on a fully-diluted basis and represents a premium to the unsolicited revised offer of Cameco Corporation's of C$4.50 per common share of Hathor made on 14 November 2011.  Hathor shareholders who have already tendered their shares to the Cameco offer may still withdraw them at any time before Cameco's offer expires at 12.01 am (Vancouver time) on 29 November 2011.

Hathor shareholders whose shares are registered in the name of an investment advisor, stockbroker, bank or trust company should contact their intermediary to ensure they meet any tendering cut-off times established by the intermediaries.  Shareholders must instruct their brokers or other intermediaries, investment advisor, stockbroker, bank, trust company or other nominee promptly if they wish to tender their shares to Rio Tinto's offer.

Shareholders who need assistance tendering their shares to Rio Tinto's offer can contact Rio Tinto's information agent, Laurel Hill Advisory Group toll free at 1-877-452-7184 or collect call at 416-637-4661 or email assistance@laurelhill.com.

About Rio Tinto in Canada

Rio Tinto employs over 13,400 people across its extensive operations in Canada, which include mining and manufacturing interests in alumina, aluminium, iron ore, diamonds and titanium dioxide. Rio Tinto also operates exploration activities, research and development centres, port and rail facilities to support various businesses, technical and sales service centres, and substantial hydroelectric power facilities in British Columbia and Quebec. In addition, Canada is home to the global headquarters of Rio Tinto Alcan.

About Rio Tinto

Rio Tinto is a leading international mining group headquartered in the UK, combining Rio Tinto plc, a London and New York Stock Exchange 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, thermal and metallurgical coal, uranium, gold, industrial minerals (borax, titanium dioxide and salt) and iron ore. Activities span the world and are strongly represented in Australia and North America with significant businesses in Asia, Europe, Africa and South America.

SOURCE RIO TINTO PLC

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