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               19 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      13,514,930      2.96%       364,075      0.08%
securities
(2) Derivatives       75,044      0.02%        14,984      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             13,589,974      2.97%       379,059      0.08%


(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      813                  102.0000 AUD
Purchase      1,039                99.8608 AUD
Purchase      99                   102.7895 AUD
Purchase      45                   101.5000 AUD
Purchase      25,023               101.5401 AUD
Purchase      15,647               101.6242 AUD
Purchase      15,647               101.6242 AUD
Purchase      2,000                102.7958 AUD
Purchase      466                  101.5000 AUD
Purchase      6,302                101.6449 AUD
Purchase      167                  101.5000 AUD
Sale          25,023               101.5401 AUD
Sale          539                  101.5000 AUD
Sale          63,900               100.7153 AUD
Sale          15,647               101.6242 AUD
Sale          25,023               101.5401 AUD
Sale          4,839                100.9231 AUD
Sale          20,800               101.5000 AUD
Sale          8,332                98.3988 AUD
Sale          1,041                101.5000 AUD
Sale          38,616               102.0000 AUD
Sale          813                  102.0000 AUD
Sale          211                  101.5000 AUD
Sale          583                  101.5000 AUD
Sale          16,353               101.5000 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          63900         100.7152
CFD            Long          4839          100.9231
CFD            Short         99            102.7894
CFD            Short         2000          102.7958
CFD            Short         1039          99.8608

(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                         22 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