Rule 8.3 - RIO TINTO PLC

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    ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)
Date of dealing               27 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      44,534,105      4.46%     1,140,914      0.11%
securities
(2) Derivatives      914,692      0.09%       155,952      0.02%
(other than
options)
(3) Options and      101,200      0.01%         1,030      0.00%
agreements to
purchase/sell
Total             45,549,997      4.56%     1,297,896      0.13%


(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      320                  58.1651
Purchase      64                   Transfer
Purchase      24,878               57.2653
Purchase      1,036                57.9655
Purchase      52,090               57.8075
Purchase      567                  56.9974
Purchase      2,156                58.0887
Purchase      16,350               56.8927
Purchase      337                  Transfer
Purchase      26,812               57.2061
Purchase      2,311                57.0817
Purchase      2,311                57.0894
Purchase      50                   58.0026
Purchase      12,370               57.6177
Purchase      500                  57.3800
Purchase      18,310               57.7669
Purchase      150                  57.0600
Purchase      150                  57.0600
Purchase      150                  57.0600
Purchase      25                   71.5000 EUR
Purchase      26,798               58.0241
Purchase      322                  58.4300
Purchase      25                   57.5855
Purchase      44                   57.4410
Purchase      7,312                57.5951
Sale          14,887               57.4546
Sale          2,700                56.7428
Sale          2,311                57.0817
Sale          338                  56.9250
Sale          300                  57.5000
Sale          81                   58.0305
Sale          1,310                Transfer
Sale          96,835               58.1425
Sale          6,335                57.1583
Sale          2,105                57.0320
Sale          22,578               58.2905
Sale          175                  57.3732
Sale          100                  57.2924
Sale          150                  57.6324
Sale          50                   57.1760
Sale          100                  57.1532
Sale          50                   57.9416
Sale          170                  57.2245
Sale          1,565                57.0320
Sale          162                  56.3000
Sale          209                  57.4821
Sale          6,900                57.1371

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2700          56.7428
CFD            Long          338           56.925
CFD            Long          6900          57.137
CFD            Long          14887         57.4546
CFD            Long          96835         58.1425
CFD            Long          22578         58.2905
CFD            Short         199           56.74
CFD            Short         24878         57.2653
CFD            Short         7515          57.371
CFD            Short         7312          57.5951
CFD            Short         12370         57.6176
CFD            Short         18310         57.7669
CFD            Short         52090         57.8075
CFD            Short         1036          57.9655
CFD            Short         26798         58.0241
CFD            Short         5418          58.0362
CFD            Short         2156          58.0886
CFD            Short         320           58.165

(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                         30 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

SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)

OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased   100,000                56.0000          AMER           18/12/2009
Option            Purchased   500                    5,000.0000       EURO           19/12/2008
Option            Purchased   350                    4,600.0000       EURO           19/12/2008
Option            Purchased   350                    4,600.0000       EURO           19/12/2008
Option            Purchased   -135                   5,200.0000       EURO           19/12/2008
Option            Purchased   -145                   5,200.0000       EURO           19/12/2008
Option            Purchased   -250                   5,200.0000       EURO           19/09/2008
Option            Purchased   -500                   7,000.0000       EURO           19/12/2008

Notes

1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given.
Full details of any  existing agreements to purchase or to sell  should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk