Rule 8.3 - RIO TINTO LTD

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 January 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      14,619,782      3.20%     1,624,320      0.36%
securities
(2) Derivatives            0      0.00%        46,676      0.02%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             14,619,782      3.20%      1,670,996     0.37%

(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      47,181               18.9013 AUD
Purchase      244                  118.8600 AUD
Purchase      251                  114.4300 AUD
Purchase      6,071                119.5062 AUD
Purchase      6,071                119.5062 AUD
Purchase      251                  114.4300 AUD
Purchase      14,414               114.2614 AUD
Purchase      126                  118.8600 AUD
Purchase      444                  118.8600 AUD
Purchase      14,414               114.2614 AUD
Purchase      416                  118.8600 AUD
Purchase      80                   118.8600 AUD
Purchase      47,181               118.9014 AUD
Sale          263                  119.8405 AUD
Sale          63                   118.8600 AUD
Sale          251                  114.4300 AUD
Sale          251                  114.4071 AUD
Sale          6,793                114.2500 AUD
Sale          49                   119.8405 AUD
Sale          83                   119.8404 AUD
Sale          283                  119.8404 AUD
Sale          13                   118.8600 AUD
Sale          48                   119.8405 AUD
Sale          172                  118.8600 AUD
Sale          6,071                119.5062 AUD
Sale          47,181               118.9013 AUD
Sale          300                  119.8404 AUD
Sale          187                  119.8404 AUD
Sale          89                   119.8405 AUD
Sale          251                  114.4300 AUD
Sale          33                   118.8600 AUD
Sale          241                  119.8405 AUD
Sale          39                   118.8600 AUD
Sale          47,181               118.9014 AUD
Sale          5,020                119.2807 AUD
Sale          11                   118.8600 AUD
Sale          1,051                120.5834 AUD
Sale          258                  119.8404 AUD
Sale          163                  119.8405 AUD
Sale          25                   118.8600 AUD
Sale          62                   118.8600 AUD
Sale          708                  119.8404 AUD
Sale          1,610                119.8404 AUD
Sale          11                   118.8600 AUD
Sale          77                   119.8404 AUD
Sale          68                   118.8600 AUD
Sale          259                  119.8404 AUD
Sale          14                   118.8600 AUD
Sale          57                   119.8404 AUD
Sale          59                   119.8404 AUD
Sale          106                  119.8404 AUD
Sale          21                   118.8600 AUD
Sale          47,181               118.9013 AUD
Sale          18                   118.8600 AUD
Sale          58                   118.8600 AUD
Sale          406                  118.8600 AUD
Sale          18                   118.8600 AUD
Sale          45                   118.8600 AUD
Sale          72                   118.8600 AUD
Sale          320                  119.8405 AUD
Sale          137                  119.8404 AUD
Sale          20                   118.8600 AUD
Sale          14,414               114.2614 AUD
Sale          64                   118.8600 AUD
Sale          75                   119.8404 AUD
Sale          77                   118.8600 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          251           114.4071
CFD            Long          47181         118.9013

(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 January 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