Rule 8.3 - RIO TINTO PLC

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               11 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      15,010,126      3.29%    1,154,843       0.25%
securities
(2) Derivatives            0      0.00%        5,731       0.00%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             15,010,126      3.29%    1,160,574       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      47,840               123.7043 AUD
Purchase      500                  124.5380 AUD
Purchase      70,811               121.7822 AUD
Purchase      60,000               121.7822 AUD
Purchase      669                  124.2500 AUD
Purchase      10,811               121.7822 AUD
Purchase      172                  121.7700 AUD
Sale          935                  123.2332 AUD
Sale          860                  123.2332 AUD
Sale          636                  123.2331 AUD
Sale          146                  123.2331 AUD
Sale          252                  123.2331 AUD
Sale          60,000               121.7822 AUD
Sale          47,716               123.7051 AUD
Sale          24                   123.2330 AUD
Sale          143                  123.2331 AUD
Sale          1,132                123.2332 AUD
Sale          522                  123.2332 AUD
Sale          10,811               121.7822 AUD
Sale          69                   123.2331 AUD
Sale          118                  123.2332 AUD
Sale          113                  123.2331 AUD
Sale          964                  123.2332 AUD
Sale          203                  123.2332 AUD
Sale          300                  125.0000 AUD
Sale          830                  123.2331 AUD
Sale          277                  123.2332 AUD
Sale          124                  123.4000 AUD
Sale          2,991                121.7700 AUD
Sale          678                  123.2331 AUD
Sale          864                  123.2332 AUD
Sale          85                   123.2331 AUD
Sale          2,415                123.2332 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        500           124.538

(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                         12 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