Rule 8.3 - RIO TINTO Limited

FORM 8.3 DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE (Rule 8.3 of the City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of person dealing BARCLAYS PLC (Note 1) Company dealt in RIO TINTO LIMITED Class of relevant security NPV to which the dealings being disclosed relate (Note 2) Date of dealing 10 October 2008 2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE (a) Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3) Long Short Number (%) Number (%) (1) Relevant 13,335,858 2.92% 311,407 0.07% securities (2) Derivatives 22,376 0.00% 689 0.00% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 13,358,234 2.92% 312,096 0.07% (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of Long Short relevant security: Number (%) Number (%) (1) Relevant securities (2) Derivatives (other than options) (3) Options and agreements to purchase/sell Total (c) Rights to subscribe (Note 3) Class of relevant security: Details 3. DEALINGS (Note 4) (a) Purchases and sales Purchase/sale Number of Securities Price per unit (GBP) Purchase 7,383 73.0073 AUD Purchase 3,883 73.0000 AUD Purchase 3,615 71.9769 AUD Purchase 7,383 73.0073 AUD Purchase 20,211 72.9082 AUD Sale 4,830 73.0000 AUD Sale 20,211 72.9082 AUD Sale 3,615 71.9769 AUD Sale 16,102 78.0100 AUD Sale 23,826 72.7669 AUD Sale 7,383 73.0073 AUD Sale 6,762 73.0000 AUD Sale 25,000 72.6409 AUD Sale 6,254 73.0000 AUD Sale 930 73.0000 AUD Sale 1,078 73.0000 AUD Sale 1,642 71.9253 AUD Sale 10,000 72.6409 AUD Sale 20,000 72.6409 AUD Sale 234 72.1573 AUD Sale 45,000 72.6409 AUD Sale 5,514 73.0000 AUD (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying Product name, Writing, Number of Exercise Type, e.g. Expiry Option money e.g. call selling, securities to price American, date paid/received option purchasing, which the option European etc. per unit (GBP) varying etc. relates (GBP) (ii) Exercising Product name, e.g. Number of Exercise price per call option securities unit (Note 5) (d) Other dealings (including new securities) (Note 4) Nature of transaction Details Price per unit (Note 8) (if applicable) (Note 5) 4. OTHER INFORMATION None Agreements, arrangements or understandings relating to options or derivatives Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated. Is a Supplemental Form 8 attached? (Note 9) NO Date of disclosure 13 October 2008 Contact name Geoff Smith Telephone number 020 7116 2913 If a connected EFM, name of offeree/offeror with which connected If a connected EFM, state nature of connection (Note 10) Notes The Notes on Form 8.3 can be viewed on the Takeover Panel's website at www.thetakeoverpanel.org.uk

Companies

Barclays (BARC)
UK 100

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