Rio Tinto plc EGM

Rio Tinto PLC
14 September 2007


Rio Tinto Offer for Alcan: Rio Tinto plc Extraordinary General Meeting



Rio Tinto announces that the extraordinary general meeting of Rio Tinto plc to
approve the acquisition of Alcan was held in London on 14 September 2007.



The resolution to approve the acquisition was proposed as an ordinary resolution
under the joint electorate procedure. The result will be announced shortly after
the extraordinary general meeting of Rio Tinto Limited which will be held in
Australia on 28 September 2007.



About Rio Tinto


Rio Tinto is a leading international mining group headquartered in the UK,
combining Rio Tinto plc, a London 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.



The Sharing Agreement (the agreement relating to the regulation of the
relationship between Rio Tinto plc and Rio Tinto Limited following the dual
listed companies merger) provides for the public shareholders of Rio Tinto plc
and Rio Tinto Limited to vote as a joint electorate on all matters which affect
shareholders of both companies in similar ways. These are referred to as Joint
Decisions. Joint Decisions are voted on a poll. To facilitate the joint voting
arrangements, each company has entered into shareholder voting agreements. Each
company has issued a Special Voting Share to a special purpose company held in
trust by a common trustee. Rio Tinto plc has issued its Special Voting Share
(RTP Special Voting Share) to RTL Shareholder SVC and Rio Tinto Limited has
issued its Special Voting Share (RTL Special Voting Share) to RTP Shareholder
SVC. The total number of votes cast on Joint Decisions by the public
shareholders of one company are voted at the parallel meeting of the other
company.





For further information, please contact:


Rio Tinto
Media Relations
London
Christina Mills                                  Office:   [phone]

                                                 Mobile:  [phone]
Nick Cobban                                      Office:  [phone]
                                                 Mobile: [phone]

Australia
Ian Head                                         Office:  [phone]
                                                 Mobile: [phone]
Amanda Buckley                                   Office:  [phone]

                                                 Mobile: [phone]

Investor Relations
London
Nigel Jones                                      Office:  [phone]
                                                 Mobile: [phone]
David Ovington                                   Office:  [phone]
                                                 Mobile: [phone]
Australia
Dave Skinner                                     Office:  [phone]
                                                 Mobile: [phone]
North America
Jason Combes                                     Office:  [phone]
                                                 Mobile: [phone]
Email: [e-mail]

Website: www.riotinto.com

High resolution photographs available at: www.newscast.co.uk







Additional information



IMPORTANT INFORMATION:

The offer to purchase all of the issued and outstanding common shares of Alcan
for US$101 per common share in a recommended, all cash transaction (the 'Offer')
is being made by Rio Tinto Canada Holding Inc. (the 'Offeror'), an indirect
wholly-owned subsidiary of Rio Tinto. The Offer represents a total consideration
for Alcan common shares of approximately US$38.1 billion.



The Offer is open for acceptance until 6.00 p.m., Canadian Eastern Time, on
September 24, 2007, unless extended. The Offer is subject to a number of
conditions including valid acceptances by holders of not less than 66-2/3 per
cent of Alcan shares on a fully diluted basis and the receipt of various
governmental and regulatory approvals, certain of which the Offeror does not
expect to receive prior to 24 September 2007. Accordingly, the Offeror currently
intends to extend the Offer beyond 24 September 2007. The board of Rio Tinto has
approved the transaction.  The Offer is expected to close in the fourth quarter
of 2007.



This announcement is for information purposes only and does not constitute or
form part of any offer or invitation to purchase, otherwise acquire, subscribe
for, sell, otherwise dispose of or issue, or any solicitation of any offer to
sell, otherwise dispose of, issue, purchase, otherwise acquire or subscribe for,
any security. The Offer (as the same may be varied or extended in accordance
with applicable law) is being made exclusively by means of, and subject to the
terms and conditions set out in, the offer and takeover bid circular delivered
to Alcan and filed with Canadian provincial securities regulators and the United
States Securities and Exchange Commission (the 'SEC') and mailed to Alcan
shareholders.



The release, publication or distribution of this announcement in certain
jurisdictions may be restricted by law and therefore persons in such
jurisdictions into which this announcement is released, published or distributed
should inform themselves about and observe such restrictions.



In connection with the Offer, an offer and takeover bid circular as well as
ancillary documents such as a letter of transmittal and a notice of guaranteed
delivery have been filed with the Canadian securities regulatory authorities and
the SEC and an Alcan directors' circular with respect to the Offer has also been
filed. A Tender Offer statement on Schedule TO (the 'Schedule TO') and a
Solicitation/Recommendation Statement on Schedule 14D-9 (the 'Schedule 14D-9')
has also been filed with the SEC.



SHAREHOLDERS OF ALCAN ARE URGED TO READ THE OFFER AND TAKEOVER BID CIRCULAR
(INCLUDING THE LETTER OF TRANSMITTAL AND NOTICE OF GUARANTEED DELIVERY), THE
SCHEDULE TO (INCLUDING THE OFFER AND TAKEOVER BID CIRCULAR, LETTER OF
TRANSMITTAL AND RELATED TENDER OFFER DOCUMENTS) AND THE SCHEDULE 14D-9 AS THEY
CONTAIN IMPORTANT INFORMATION ABOUT THE OFFER.



The offer and takeover bid circular as well as other materials filed with the
Canadian securities regulatory authorities are available electronically without
charge at www.sedar.com. The Schedule TO and the Schedule 14D-9 are available
electronically without charge at the SEC's website, www.sec.gov. Materials filed
with the SEC or the Canadian securities regulatory authorities may also be
obtained without charge at Rio Tinto's website, www.riotinto.com.



While the Offer is being made to all holders of Alcan common shares, this
announcement does not constitute an offer or a solicitation in any jurisdiction
in which such offer or solicitation is unlawful. The Offer is not being made in,
nor will deposits be accepted in, any jurisdiction in which the making or
acceptance thereof would not be in compliance with the laws of such
jurisdiction.



However, the Offeror may, in its sole discretion, take such action as it may
deem necessary to extend the Offer in any such jurisdiction.



The Offer is made to holders in France of Alcan common shares admitted to
trading on Euronext-Paris. An announcement including the main information
relating to the Offer documents has been prepared and released pursuant to
article 231-24 of the AMF General Regulation and contains information relating
to how and in which time limit Alcan shareholders residing in France can accept
this Offer. The offer document and the announcement prepared pursuant to article
231-24 of the AMF General Regulation are available free of charge to the holders
of Alcan Shares registered with Euroclear France who request it from Citi
France, Global Transaction Services, Operations departement, 19 le Parvis la
Defense 7, 92073 Paris La Defense. They are also available on the internet at
the following address: www.computershare.com/Rio-AlcanFrenchofferdocument



The Offer is made to holders in Belgium of Alcan common shares and/or
certificates admitted to trading on Euronext Brussels (the 'IDRs'). A Belgian
supplement, addressing issues specific to holders of Alcan common shares and/or
IDRs in Belgium (the 'Belgian Supplement') was approved by the Belgian Banking,
Finance and Insurance Commission on 2 August 2007. The offer document and the
Belgian Supplement are available free of charge to the investors in Belgium who
request it from the Belgian branch of Citibank International plc, Department GTS
Operations, 4th floor, boulevard General Jacques 263G, 1050 Brussels. They are
also available on the internet at the following address: www.computershare.com/
Rio-AlcanBelgianofferdocument.




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