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 February 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      14,929,145      3.27%    1,064,834       0.23%
securities
(2) Derivatives            0      0.00%        6,236       0.00%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             14,929,145      3.27%    1,071,070       0.23%


(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      9,037                135.5344 AUD
Purchase      11,393               135.8645 AUD
Purchase      1,064                132.3600 AUD
Purchase      1,200                136.5900 AUD
Purchase      2,291                132.3600 AUD
Sale          176                  135.7609 AUD
Sale          206                  135.7609 AUD
Sale          4,985                132.3600 AUD
Sale          1,693                135.7609 AUD
Sale          144                  135.7609 AUD
Sale          6,599                135.7609 AUD
Sale          196                  135.7609 AUD
Sale          3,988                132.3600 AUD
Sale          5,562                132.3600 AUD
Sale          194                  135.7609 AUD
Sale          231                  135.7609 AUD
Sale          601                  135.7609 AUD
Sale          994                  135.7609 AUD
Sale          390                  135.7609 AUD
Sale          467                  135.7609 AUD
Sale          300                  135.7609 AUD
Sale          743                  135.7609 AUD
Sale          960                  135.7609 AUD
Sale          387                  135.7609 AUD
Sale          1,023                135.7609 AUD
Sale          9,037                135.5344 AUD
Sale          145                  135.7609 AUD
Sale          289                  135.7609 AUD
Sale          218                  135.7609 AUD
Sale          216                  135.7609 AUD
Sale          95                   135.7609 AUD
Sale          856                  135.7609 AUD
Sale          224                  135.7609 AUD
Sale          205                  135.7609 AUD
Sale          139                  135.7609 AUD
Sale          145                  135.7609 AUD
Sale          986                  135.7609 AUD
Sale          11,393               135.8645 AUD
Sale          766                  135.7609 AUD
Sale          566                  135.7609 AUD
Sale          318                  135.7609 AUD
Sale          1,580                135.7609 AUD

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1200          136.59

(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                         21 February 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