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               01 September 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      13,719,574      3.00%       283,771     0.06%
securities
(2) Derivatives        7,240      0.00%           913     0.00%
(other than
options)
(3) Options and            0      0.00%             0     0.00%
agreements to
purchase/sell
Total             13,726,814      3.00%       284,684     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      702                  125.0627 AUD
Purchase      5,032                124.9725 AUD
Purchase      696                  125.2474 AUD
Purchase      1,500                124.5893 AUD
Purchase      3,115                124.9635 AUD
Purchase      303                  124.9725 AUD
Purchase      5,335                124.9725 AUD
Purchase      203                  125.0627 AUD
Purchase      864                  125.0627 AUD
Purchase      940                  125.0628 AUD
Purchase      227                  125.0627 AUD
Purchase      2,772                124.9759 AUD
Purchase      541                  127.5000 AUD
Purchase      3,646                125.0627 AUD
Purchase      103                  127.5000 AUD
Purchase      887                  127.5000 AUD
Purchase      420                  125.0627 AUD
Purchase      128                  127.5000 AUD
Purchase      873                  125.0627 AUD
Purchase      190                  125.0628 AUD
Purchase      918                  125.0628 AUD
Purchase      1,359                125.0628 AUD
Purchase      659                  125.0628 AUD
Purchase      255                  127.5000 AUD
Sale          303                  124.9725 AUD
Sale          287                  124.9227 AUD
Sale          5,032                124.9725 AUD
Sale          40                   125.1753 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          40            125.1752
CFD            Short         1500          124.5893
CFD            Short         3115          124.9634
CFD            Short         696           125.2473

(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                         02 September 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