Supplementary information

Computershare Investor Services PLC and Computershare Investor Services Pty Limited are the registrars for Rio Tinto plc and Rio Tinto Limited respectively. All enquiries and correspondence concerning shareholdings, other than shares held in ADR form, should be directed to the respective registrar. Their addresses and telephone numbers are given on the Useful Addressses page. Please notify Computershare promptly in writing of any change of address.

Shareholders are able to obtain details about their own shareholding from the internet. Full details, including how to gain secure access to this personalised enquiry facility, are given on the Computershare website.

Consolidation of share certificates

If your certificated shareholding in Rio Tinto plc is represented by several individual share certificates, they can be replaced by one consolidated certificate; there is no charge for this service. Share certificates should be sent to Computershare together with a letter of instruction.

Share certificates - name change

Share certificates in the name of The RTZ Corporation PLC remain valid notwithstanding the name change to Rio Tinto plc in 1997.

Share warrants to bearer

All outstanding share warrants to bearer of Rio Tinto plc have been converted into registered ordinary shares under the terms of a scheme of arrangement sanctioned by the court in 2001. Holders of any outstanding share warrants to bearer should contact the Rio Tinto plc company secretary for an application form to obtain their rights to registered ordinary shares.

Low cost share dealing service

Stocktrade operates the Rio Tinto low cost share dealing service which provides Rio Tinto plc shareholders with a simple telephone facility for buying and selling Rio Tinto shares. Basic commission is 0.5 per cent up to £10,000, reducing to 0.2 per cent thereafter (subject to a minimum commission of £15). Further information is available from Stocktrade, which is a division of Brewin Dolphin Securities, authorised and regulated by the Financial Services Authority. Their details are given on the Useful addresses page.

Some transactions may be subject to the money laundering regulations and you may be required to provide certain personal details to Stocktrade prior to any purchase or sale of shares.

Individual Savings Account (ISA)

Stocktrade offers an ISA for UK residents wishing to hold Rio Tinto plc shares in an ISA account. Existing PEPS or ISAs may also be transferred to Stocktrade.

Further information on ISAs can be obtained from Stocktrade, whose details are given on the Useful addresses page.

Corporate nominee service

Computershare, in conjunction with Rio Tinto plc, have introduced a corporate nominee service for private individuals. Further information can be obtained from Computershare.

Publication of financial statements

Shareholders currently receiving the Annual review who wish to receive a copy of the full Annual report and financial statements, free of charge, for this and future years, should contact Computershare. Alternatively if shareholders wish to receive these reports electronically, rather than in paper form, they should register their instruction on the Computershare website. The reports are also available on the Rio Tinto website.

Registered holders of ADRs will have the annual and US GAAP reports sent to their record address. Brokers or financial institutions which hold ADRs for shareholder clients are responsible for forwarding shareholder information to their clients and will be provided with copies of the Annual review for this purpose.

Full parent entity financial statements for Rio Tinto Limited are available free of charge from the Rio Tinto Limited company secretary on request. These financial statements are also available on the Rio Tinto website.

Unsolicited mail and telephone calls

Rio Tinto is aware that some shareholders have had occasion to complain that outside organisations have used information, obtained from the Companies' share registers, for their own purposes. Rio Tinto, like other companies, cannot by law refuse to supply such information provided that the organisation concerned pays the appropriate statutory fee.

Shareholders in the UK who wish to reduce the amount of unsolicited mail and telephone calls they receive should register with The Mailing Preference Service and The Telephone Preference Service whose details are on the Useful addresses page.