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               30 June 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      13,368,455      2.93%       258,397      0.06%
securities
(2) Derivatives        7,946      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             13,376,401      2.93%       258,397      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      1,485                135.4696 AUD
Purchase      331                  135.4695 AUD
Purchase      132                  135.4695 AUD
Purchase      163                  135.8900 AUD
Purchase      387                  135.4696 AUD
Purchase      478                  135.8900 AUD
Purchase      157                  135.4695 AUD
Purchase      2,101                135.8900 AUD
Purchase      410                  135.8900 AUD
Purchase      129                  135.4695 AUD
Purchase      194                  135.8900 AUD
Purchase      1,839                135.8900 AUD
Purchase      842                  135.5000 AUD
Purchase      2,717                135.5000 AUD
Purchase      56                   135.5000 AUD
Purchase      147                  135.5000 AUD
Purchase      834                  134.9220 AUD
Purchase      63,446               135.4865 AUD
Purchase      13,243               135.4787 AUD
Purchase      158                  135.8900 AUD
Purchase      652                  135.4695 AUD
Purchase      432                  132.0400 AUD
Purchase      130                  135.8900 AUD
Purchase      1,680                135.4695 AUD
Purchase      808                  135.8900 AUD
Purchase      496                  135.4695 AUD
Purchase      156                  135.4695 AUD
Purchase      192                  135.8900 AUD
Purchase      322                  135.8900 AUD
Purchase      261                  135.4696 AUD
Purchase      427                  135.4696 AUD
Purchase      613                  135.8900 AUD
Purchase      404                  135.4695 AUD
Purchase      500                  135.8900 AUD
Purchase      840                  135.4695 AUD
Purchase      1,040                135.8900 AUD
Purchase      528                  135.8900 AUD
Purchase      106                  135.4696 AUD
Sale          1,922                135.5000 AUD
Sale          1,669                132.0400 AUD
Sale          236                  134.8530 AUD
Sale          13,243               135.4788 AUD
Sale          2,034                136.1381 AUD
Sale          63,446               135.4865 AUD
Sale          535                  135.5000 AUD
Sale          842                  135.5000 AUD
Sale          29,514               135.5000 AUD
Sale          56                   135.5000 AUD
Sale          3,095                135.5000 AUD
Sale          1,567                135.5000 AUD
Sale          147                  135.5000 AUD
Sale          9,476                135.8900 AUD
Sale          63,446               135.4865 AUD
Sale          604                  135.5000 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          236           134.853
CFD            Long          2034          136.1381
CFD            Short         834           134.922

(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                         01 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