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               21 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      14,908,507      3.26%    1,068,862       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             14,908,507      3.26%     1,075,098      0.24%


(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      301                  133.4333 AUD
Purchase      3,189                133.2273 AUD
Purchase      12,417               132.3446 AUD
Purchase      7,217                133.6666 AUD
Purchase      14,955               134.3392 AUD
Purchase      2,888                133.2058 AUD
Sale          304                  133.5379 AUD
Sale          7,217                133.6666 AUD
Sale          568                  133.5379 AUD
Sale          265                  133.5379 AUD
Sale          345                  133.5379 AUD
Sale          318                  133.5379 AUD
Sale          193                  133.5379 AUD
Sale          12,417               132.3446 AUD
Sale          101                  134.1100 AUD
Sale          647                  133.5379 AUD
Sale          188                  133.5379 AUD
Sale          7,217                133.6666 AUD
Sale          853                  133.6800 AUD
Sale          958                  133.5379 AUD
Sale          3,803                133.5379 AUD
Sale          240                  133.5379 AUD
Sale          1,034                133.5379 AUD
Sale          691                  133.5379 AUD
Sale          136                  133.5379 AUD
Sale          779                  133.5379 AUD
Sale          2,991                133.6800 AUD
Sale          14,955               134.3392 AUD
Sale          188                  133.5379 AUD
Sale          86                   133.5378 AUD
Sale          2,888                133.2058 AUD
Sale          868                  133.5379 AUD
Sale          301                  133.4333 AUD
Sale          440                  133.5379 AUD
Sale          614                  133.5379 AUD

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

(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 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