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               29 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      14,850,870      3.25%    1,089,686       0.24%
securities
(2) Derivatives            0      0.00%       47,246       0.01%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             14,850,870      3.25%    1,136,932       0.25%


(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      3,206                137.0000 AUD
Purchase      967                  137.0000 AUD
Purchase      50                   137.0000 AUD
Purchase      1,565                137.0000 AUD
Purchase      41                   134.1500 AUD
Purchase      4,780                137.0000 AUD
Purchase      198                  137.0000 AUD
Purchase      1,404                137.0000 AUD
Purchase      342                  137.0000 AUD
Purchase      42                   137.0000 AUD
Purchase      817                  134.1500 AUD
Purchase      468                  134.1500 AUD
Purchase      14,721               136.0351 AUD
Purchase      4,852                134.2592 AUD
Purchase      2,208                137.0137 AUD
Purchase      3,176                137.0000 AUD
Purchase      723                  136.0864 AUD
Purchase      62                   137.0000 AUD
Purchase      22,489               135.4019 AUD
Purchase      112                  137.0000 AUD
Purchase      2,208                137.0137 AUD
Purchase      1,418                137.0000 AUD
Purchase      24,269               134.4746 AUD
Purchase      1,872                135.3700 AUD
Purchase      3,419                137.0000 AUD
Purchase      74                   137.0000 AUD
Sale          3,206                137.0000 AUD
Sale          3,052                137.0000 AUD
Sale          5,575                134.4962 AUD
Sale          64                   137.0000 AUD
Sale          723                  136.0864 AUD
Sale          4,950                137.0000 AUD
Sale          50                   137.0000 AUD
Sale          42                   137.0000 AUD
Sale          1,103                135.2862 AUD
Sale          967                  137.0000 AUD
Sale          1,326                134.1500 AUD
Sale          4,852                134.2592 AUD
Sale          342                  137.0000 AUD
Sale          4,780                137.0000 AUD
Sale          14,721               136.0351 AUD
Sale          116                  137.0000 AUD
Sale          1,418                137.0000 AUD
Sale          30,000               137.0000 AUD
Sale          79                   137.0000 AUD
Sale          6,911                137.0000 AUD
Sale          62                   137.0000 AUD
Sale          16,001               134.3004 AUD
Sale          112                  137.0000 AUD
Sale          1,565                137.0000 AUD
Sale          139                  137.0000 AUD
Sale          3,419                137.0000 AUD
Sale          24,269               134.4746 AUD
Sale          568                  137.0000 AUD
Sale          2,208                137.0137 AUD
Sale          44                   137.0000 AUD
Sale          74                   137.0000 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         22489         135.4019
CFD            Long          16001         134.3004

(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                         03 March 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