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               09 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      13,322,639      2.92%       277,846      0.06%
securities
(2) Derivatives       41,315      0.01%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             13,363,954      2.93%       277,846      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      7,036                125.0125 AUD
Purchase      3,518                123.1377 AUD
Purchase      900                  123.8748 AUD
Purchase      7,100                123.8536 AUD
Purchase      14,230               124.1908 AUD
Purchase      10,983               124.4118 AUD
Purchase      3,947                123.3409 AUD
Purchase      1,207                123.1377 AUD
Purchase      1,815                123.1500 AUD
Purchase      801                  124.8930 AUD
Purchase      812                  125.0000 AUD
Purchase      302                  123.1500 AUD
Sale          1,437                123.5390 AUD
Sale          3,518                123.1377 AUD
Sale          3,947                123.3409 AUD
Sale          164                  123.8393 AUD
Sale          1,207                123.1377 AUD
Sale          807                  123.8393 AUD
Sale          14                   123.6193 AUD
Sale          14,230               124.1908 AUD
Sale          503                  123.8393 AUD
Sale          352                  123.8393 AUD
Sale          4,725                123.1377 AUD
Sale          140                  123.8393 AUD
Sale          887                  123.8393 AUD
Sale          2,955                123.8393 AUD
Sale          7,036                125.0125 AUD
Sale          113                  123.8393 AUD
Sale          31,204               123.3306 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          1437          123.539
CFD            Long          14            123.6192
CFD            Short         7100          123.8535
CFD            Short         900           123.8747

(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                         10 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