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               05 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      14,741,347      3.23%       180,376      0.04%
securities
(2) Derivatives        9,506      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             14,750,853      3.23%       180,376      0.04%


(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      1,000                135.0000 AUD
Purchase      1,349                136.4800 AUD
Purchase      1,044                134.9500 AUD
Purchase      308                  134.4200 AUD
Purchase      1,044                134.9500 AUD
Purchase      19,790               135.1564 AUD
Purchase      1,354                136.2878 AUD
Purchase      10,458               134.9635 AUD
Purchase      224                  136.5073 AUD
Purchase      1,000                135.0000 AUD
Purchase      4,379                135.8313 AUD
Purchase      10,458               134.9635 AUD
Sale          10,879               135.0062 AUD
Sale          1,975                135.3486 AUD
Sale          61                   134.4200 AUD
Sale          3,087                135.5449 AUD
Sale          10,458               134.9635 AUD
Sale          1,196                134.9500 AUD
Sale          24,169               135.2787 AUD
Sale          12                   134.4200 AUD
Sale          179                  136.3321 AUD
Sale          68                   134.4200 AUD
Sale          7                    134.4200 AUD
Sale          116                  136.3320 AUD
Sale          38                   134.4200 AUD
Sale          561                  136.3320 AUD
Sale          606                  136.3320 AUD
Sale          41                   134.4200 AUD
Sale          216                  136.3320 AUD
Sale          32                   134.4200 AUD
Sale          961                  136.3320 AUD
Sale          474                  136.3321 AUD
Sale          10                   134.4200 AUD
Sale          154                  136.3321 AUD
Sale          9                    134.4200 AUD
Sale          138                  136.3321 AUD
Sale          236                  136.3320 AUD
Sale          16                   134.4200 AUD
Sale          900                  136.3320 AUD
Sale          14                   134.4200 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          10879         135.0061
CFD            Long          1975          135.3486
CFD            Long          3087          135.5448
CFD            Short         1354          136.2878
CFD            Short         224           136.5072

(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                         06 June 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