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               09 September 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      13,871,018      3.04%       284,128      0.06%
securities
(2) Derivatives        7,597      0.00%           134      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             13,878,615      3.04%       284,262      0.06%


(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      1,119                110.2500 AUD
Purchase      700                  109.0186 AUD
Purchase      15,582               107.5108 AUD
Purchase      1,750                109.5290 AUD
Purchase      5,816                109.5400 AUD
Purchase      15,582               107.5108 AUD
Purchase      1,344                107.5000 AUD
Purchase      604                  107.9900 AUD
Purchase      362                  111.6900 AUD
Purchase      278                  111.0266 AUD
Purchase      3,184                110.2500 AUD
Purchase      3,973                107.5000 AUD
Purchase      154                  107.5000 AUD
Purchase      110                  110.1000 AUD
Sale          14,536               107.5000 AUD
Sale          5,816                109.5400 AUD
Sale          204                  107.9900 AUD
Sale          1,080                107.7765 AUD
Sale          5,816                109.5400 AUD
Sale          1,750                109.5290 AUD
Sale          1,750                109.5290 AUD
Sale          663                  107.7766 AUD
Sale          1,119                110.2500 AUD
Sale          1,027                110.2500 AUD
Sale          3                    108.0300 AUD
Sale          1,439                107.7765 AUD
Sale          362                  111.6900 AUD
Sale          275                  107.9900 AUD
Sale          125                  107.9900 AUD
Sale          15,582               107.5108 AUD


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          3             108.03
CFD            Short         700           109.0185

(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                         10 September 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