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               18 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      15,051,614      3.29%    1,055,381       0.23%
securities
(2) Derivatives          547      0.00%        5,583       0.00%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             15,052,161      3.30%    1,060,964       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      690                  134.9900 AUD
Purchase      7,217                134.0134 AUD
Purchase      7,217                134.0134 AUD
Purchase      18,354               134.9879 AUD
Purchase      11,602               135.4987 AUD
Sale          401                  134.9417 AUD
Sale          4                    134.9900 AUD
Sale          16                   134.9900 AUD
Sale          15                   134.9900 AUD
Sale          3                    134.9900 AUD
Sale          12                   134.9900 AUD
Sale          1,271                134.9417 AUD
Sale          600                  134.8552 AUD
Sale          177                  134.9417 AUD
Sale          894                  134.9418 AUD
Sale          174                  134.9418 AUD
Sale          7,217                134.0134 AUD
Sale          1,319                134.9418 AUD
Sale          530                  134.9417 AUD
Sale          396                  134.9417 AUD
Sale          10                   134.9900 AUD
Sale          5                    134.9900 AUD
Sale          129                  134.9418 AUD
Sale          5                    134.9900 AUD
Sale          29                   134.9900 AUD
Sale          390                  134.9417 AUD
Sale          28                   134.9900 AUD
Sale          1,313                134.9418 AUD
Sale          2                    134.9900 AUD
Sale          253                  134.9417 AUD
Sale          191                  134.9417 AUD
Sale          29                   134.9900 AUD
Sale          4                    134.9900 AUD
Sale          3                    134.9900 AUD
Sale          8                    134.9900 AUD
Sale          5                    134.9900 AUD
Sale          8                    134.9900 AUD
Sale          227                  134.9418 AUD
Sale          31                   134.9900 AUD
Sale          4                    134.9900 AUD
Sale          295                  134.9417 AUD
Sale          11                   134.9900 AUD
Sale          9                    134.9900 AUD
Sale          114                  134.9418 AUD
Sale          1,752                134.9418 AUD
Sale          1,426                134.9418 AUD
Sale          18,354               134.9879 AUD
Sale          11,602               135.4987 AUD
Sale          335                  134.9418 AUD
Sale          231                  134.9417 AUD
Sale          15,234               134.9417 AUD
Sale          262                  134.9417 AUD
Sale          480                  134.9417 AUD
Sale          1                    134.9900 AUD
Sale          579                  134.9418 AUD
Sale          733                  134.9417 AUD
Sale          352                  134.9900 AUD
Sale          721                  134.9418 AUD
Sale          6                    134.9900 AUD
Sale          62                   134.9417 AUD
Sale          7                    134.9900 AUD
Sale          736                  134.9417 AUD
Sale          8                    134.9900 AUD
Sale          16                   134.9900 AUD
Sale          19                   134.9900 AUD
Sale          38                   134.9900 AUD
Sale          417                  134.9417 AUD
Sale          2                    134.9900 AUD
Sale          196                  134.9418 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          600           134.8551

(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                         19 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