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               23 July 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      13,441,193      2.94%       283,771      0.06%
securities
(2) Derivatives        7,240      0.00%         8,812      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             13,448,433      2.94%       292,583      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      109                  118.9200 AUD
Purchase      105                  119.6356 AUD
Purchase      8,721                119.6356 AUD
Purchase      330                  119.6356 AUD
Purchase      15,269               119.0571 AUD
Purchase      9,890                119.6356 AUD
Purchase      458                  118.9200 AUD
Purchase      324                  119.6356 AUD
Purchase      237                  118.9200 AUD
Purchase      4                    118.9200 AUD
Purchase      2,397                119.6356 AUD
Purchase      1,823                120.1000 AUD
Purchase      7,026                118.1118 AUD
Purchase      8,243                119.8628 AUD
Purchase      14,203               120.0880 AUD
Purchase      1,378                119.0007 AUD
Purchase      5,178                119.6356 AUD
Purchase      27                   118.9200 AUD
Purchase      399                  118.9200 AUD
Purchase      702                  120.1000 AUD
Purchase      1,729                120.1000 AUD
Purchase      4                    118.9200 AUD
Purchase      15                   118.9200 AUD
Purchase      106                  119.6356 AUD
Purchase      14                   118.9200 AUD
Purchase      593                  119.6356 AUD
Purchase      176                  118.9200 AUD
Purchase      1,012                119.6356 AUD
Purchase      65                   118.9200 AUD
Purchase      1,420                119.6356 AUD
Purchase      46                   118.9200 AUD
Purchase      3,843                119.6356 AUD
Sale          10                   120.8960 AUD
Sale          14,203               120.0880 AUD
Sale          14,203               120.0880 AUD
Sale          2,734                118.1000 AUD
Sale          4,301                120.1000 AUD
Sale          7,026                118.1118 AUD
Sale          8,243                119.8628 AUD
Sale          1,253                118.9200 AUD
Sale          49                   118.9200 AUD
Sale          252                  118.9200 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          10            120.896
CFD            Short         1378          119.0006

(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                         24 July 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