Rio Tinto media release Web versionhttp://riotinto.msgfocus.com/q/1MtPh8bojKUDRH/wv If you have problems viewing images in Outlook, please add us to your safe list http://riotinto.msgfocus.com/c/1398VJic4Mlzf8BsD01007yc 7 January 2012 Rio Tinto offer for Hathor Exploration Click to download full pdf article Download pdf here http://riotinto.msgfocus.com/c/1398XM1YsIWcGhHca5la6LPF Rio Tinto, through an indirect wholly-owned subsidiary, has now taken up a total of 119,456,310 Hathor common shares representing approximately 93.76 per cent of the outstanding common shares of Hathor on a fully diluted basis (other than the Hathor common shares already held by an affiliate of Rio Tinto as of the date of the offer) pursuant to its offer to acquire all of the outstanding Hathor common shares. Rio Tinto’s offer expired at 5:00pm (Toronto time) on 6 January 2012.

All Hathor common shares validly deposited and not withdrawn before the expiry of the offer have been taken up and payment will be made for such shares within three business days of take-up.

Rio Tinto now intends to acquire all outstanding Hathor common shares not tendered to the offer through a compulsory acquisition under the Canada Business Corporations Act. Rio Tinto also intends to apply to delist the Hathor common shares from the Toronto Stock Exchange as soon as practicable after the completion of the compulsory acquisition. 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 Tintos 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. Contacts: Media Relations, EMEA / Americas Illtud Harri Office: +44 (0) 20 7781 1152 Mobile: +44 (0) 7920 503 600 Tony Shaffer Office: +44 (0) 20 7781 1138 Mobile: +44 (0) 7920 041 003 Christina Mills Office: +44 (0) 20 7781 1154 Mobile: +44 (0) 7825 275 605 Media Relations, Australia / Asia David Luff Office: +61 (0) 3 9283 3620 Mobile: +61 (0) 419 850 205 Karen Halbert Office: +61 (0) 3 9283 3627 Mobile: +61 (0) 412 119 389 Bruce Tobin Office: +61 (0) 3 9283 3612 Mobile: +61 (0) 419 103 454 Media Relations, Canada Bryan Tucker Office: +1 (0) 514 848 8151 Mobile: +1 (0) 514 825 8319 Investor Relations, London Mark Shannon Office: +44 (0) 20 7781 1178 Mobile: +44 (0) 7917 576 597 David Ovington Office: +44 (0) 20 7781 2051 Mobile: +44 (0) 7920 010 978 Investor Relations, North America Jason Combes Office: +1 (0) 801 204 2919 Mobile: +1 (0) 801 558 2645 Investor Relations, Australia Dave Skinner Office: +61 (0) 3 9283 3628 Mobile: +61 (0) 408 335 309 Christopher Maitland Office +61 (0) 3 9283 3063 Mobile +61 (0) 459 800 131 Further information: If you have been forwarded this email, you may wish to click here to signup for our media releases http://riotinto.msgfocus.com/c/1398ZOLKQFwQ7qMVHaFkdq78 directly. Follow us on Twitter http://riotinto.msgfocus.com/c/13991RvxeC7tyzSFefZuk4oB Website: www.riotinto.com http://riotinto.msgfocus.com/c/13993UfjCyI6ZIYoLljEqIG4 LEGAL INFORMATION - Copyright © 2010 Rio Tinto.

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