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               10 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      14,714,161      3.22%      1,585,851     0.35%
securities
(2) Derivatives       59,745      0.01%             0      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             14,773,906      3.23%      1,585,851     0.35%


(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      710                  128.0000 AUD
Purchase      969                  126.6300 AUD
Purchase      10,967               127.3286 AUD
Purchase      10,967               127.3286 AUD
Purchase      1,801                128.0128 AUD
Purchase      203                  111.7321 AUD
Purchase      844                  126.6737 AUD
Purchase      10,967               127.3286 AUD
Purchase      122                  126.0700 AUD
Purchase      16,100               126.3024 AUD
Purchase      881                  126.6736 AUD
Purchase      1,801                128.0128 AUD
Purchase      710                  128.0000 AUD
Purchase      927                  126.6300 AUD
Purchase      16,100               126.3024 AUD
Purchase      10,000               127.3849 AUD
Purchase      1,994                128.0000 AUD
Sale          1,103                126.6300 AUD
Sale          710                  128.0000 AUD
Sale          710                  128.0000 AUD
Sale          710                  127.9744 AUD
Sale          939                  126.5454 AUD
Sale          432                  126.6300 AUD
Sale          245                  126.6300 AUD
Sale          16,100               126.3024 AUD
Sale          10,000               127.3849 AUD
Sale          116                  126.6300 AUD
Sale          16,100               126.3024 AUD
Sale          10,000               127.3849 AUD
Sale          10,967               127.3286 AUD
Sale          16,100               126.3024 AUD
Sale          1,801                128.0128 AUD
Sale          203                  111.7321 AUD
Sale          10,967               127.3286 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         10967         127.3285
CFD            Long          16100         126.3024
CFD            Long          710           127.9743

(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                         11 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