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               20 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      13,674,658      2.99%       189,219      0.04%
securities
(2) Derivatives        7,688      0.00%           273      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             13,682,346      3.00%       189,492      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      10,000               138.6139 AUD
Purchase      261                  138.5861 AUD
Purchase      3,161                139.0900 AUD
Purchase      1,468                139.1080 AUD
Purchase      324                  139.7500 AUD
Purchase      128                  139.0900 AUD
Purchase      2,900                138.7568 AUD
Purchase      10,000               138.6139 AUD
Purchase      466                  138.6000 AUD
Purchase      261                  138.6000 AUD
Sale          224                  139.0900 AUD
Sale          838                  138.5504 AUD
Sale          487                  138.5504 AUD
Sale          1,065                138.5504 AUD
Sale          654                  138.5504 AUD
Sale          174                  139.0900 AUD
Sale          312                  139.0900 AUD
Sale          86                   139.0900 AUD
Sale          1,169                138.5504 AUD
Sale          130                  139.0900 AUD
Sale          284                  139.0900 AUD
Sale          800                  138.5504 AUD
Sale          214                  139.0900 AUD
Sale          400                  138.5504 AUD
Sale          6,190                138.6000 AUD
Sale          209                  138.5504 AUD
Sale          228                  139.7221 AUD
Sale          261                  138.6000 AUD
Sale          261                  138.5861 AUD
Sale          10,000               138.6139 AUD
Sale          1,376                139.3848 AUD
Sale          261                  138.5861 AUD
Sale          107                  139.0900 AUD
Sale          49                   139.0900 AUD
Sale          1,909                138.5504 AUD
Sale          23,645               138.8300 AUD
Sale          714                  138.6000 AUD
Sale          232                  138.6000 AUD
Sale          3,643                138.6000 AUD
Sale          32                   139.0900 AUD
Sale          122                  138.5504 AUD
Sale          44                   139.0900 AUD
Sale          165                  138.5504 AUD
Sale          218                  138.5504 AUD
Sale          58                   139.0900 AUD
Sale          297                  139.0900 AUD
Sale          39                   139.0900 AUD
Sale          184                  138.5504 AUD
Sale          322                  138.5504 AUD
Sale          155                  139.0900 AUD
Sale          581                  138.5504 AUD
Sale          410                  138.5504 AUD
Sale          109                  139.0900 AUD
Sale          1,217                138.5504 AUD
Sale          325                  139.0900 AUD
Sale          202                  138.5504 AUD
Sale          53                   139.0900 AUD
Sale          20                   139.0900 AUD
Sale          75                   138.5504 AUD
Sale          55                   139.0900 AUD
Sale          522                  139.0900 AUD
Sale          148                  138.5504 AUD
Sale          1,112                138.5504 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          1376          139.3848
CFD            Long          228           139.722
CFD            Short         2900          138.7568
CFD            Short         1468          139.108

(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                         23 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