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               18 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      14,664,965      3.21%     1,614,431      0.35%
securities
(2) Derivatives            0      0.00%        94,108      0.02%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             14,664,965      3.21%      1,708,539     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      92,997               115.6496 AUD
Purchase      4,700                122.0080 AUD
Purchase      409                  121.4400 AUD
Purchase      92,997               115.6496 AUD
Purchase      92,997               115.6496 AUD
Purchase      4,700                122.0080 AUD
Purchase      3,349                115.9665 AUD
Purchase      1,860                124.0280 AUD
Purchase      3,410                124.0124 AUD
Purchase      2,269                123.5615 AUD
Purchase      372                  117.6100 AUD
Purchase      3,873                115.9665 AUD
Purchase      3,410                124.0124 AUD
Purchase      372                  117.6335 AUD
Purchase      372                  117.6100 AUD
Sale          3,410                124.0124 AUD
Sale          2,269                123.5615 AUD
Sale          529                  124.0000 AUD
Sale          9,270                124.0000 AUD
Sale          92,997               115.6496 AUD
Sale          1,860                124.0032 AUD
Sale          4,700                122.0080 AUD
Sale          409                  121.4157 AUD
Sale          4,700                122.0080 AUD
Sale          5,393                124.0000 AUD
Sale          4,700                122.0080 AUD
Sale          92,997               115.6496 AUD
Sale          2,269                123.5615 AUD
Sale          372                  117.6100 AUD
Sale          372                  117.6100 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         92997         115.6495
CFD            Short         372           117.6335
CFD            Long          409           121.4157
CFD            Long          4700          122.0079
CFD            Long          1860          124.0031

(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                         21 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