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               16 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      14,605,189      3.20%     1,624,630      0.36%
securities
(2) Derivatives            0      0.00%         8,408      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             14,605,189      3.20%     1,633,038      0.36%

(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      18,325               122.9905 AUD
Purchase      183                  123.2904 AUD
Purchase      348                  123.2904 AUD
Purchase      130                  123.2904 AUD
Purchase      93                   123.2904 AUD
Purchase      226                  123.2904 AUD
Purchase      640                  123.2904 AUD
Purchase      18,325               122.9905 AUD
Purchase      74                   122.9600 AUD
Purchase      1,482                122.9600 AUD
Purchase      431                  123.2200 AUD
Purchase      1,482                122.9600 AUD
Purchase      8,732                123.2200 AUD
Purchase      18,325               122.9905 AUD
Sale          551                  123.2200 AUD
Sale          18,325               122.9905 AUD
Sale          76                   123.1699 AUD
Sale          235                  123.1699 AUD
Sale          66                   123.2200 AUD
Sale          92                   123.2200 AUD
Sale          65                   123.1699 AUD
Sale          24                   123.2200 AUD
Sale          1,482                122.9600 AUD
Sale          244                  123.2200 AUD
Sale          113                  123.1699 AUD
Sale          4,202                123.1699 AUD
Sale          1,048                123.2200 AUD
Sale          44                   123.2200 AUD
Sale          1,028                122.5497 AUD
Sale          18,325               122.9905 AUD
Sale          31                   123.2200 AUD
Sale          597                  123.2200 AUD
Sale          1,482                122.9354 AUD
Sale          69                   123.1699 AUD
Sale          112                  123.2200 AUD
Sale          85                   123.1699 AUD
Sale          54                   123.1699 AUD
Sale          1,482                122.9600 AUD
Sale          23,675               123.0068 AUD
Sale          447                  123.1699 AUD
Sale          184                  123.1699 AUD
Sale          50                   123.1698 AUD
Sale          5,637                123.2200 AUD
Sale          34                   123.1698 AUD
Sale          19                   123.1695 AUD
Sale          313                  123.2200 AUD
Sale          24                   123.1696 AUD
Sale          70                   123.2200 AUD
Sale          149                  123.2200 AUD
Sale          413                  123.1699 AUD
Sale          100                  123.2200 AUD
Sale          85                   123.2200 AUD
Sale          784                  123.1699 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         18325         122.9905
CFD            Long          1482          122.9354

(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                         17 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