Rule 8.3 - RIO TINTO Limited

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 April 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      14,142,345      3.10%       284,777      0.06%
securities
(2) Derivatives        7,240      0.00%         3,106      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             14,149,585      3.10%       287,883      0.06%


(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      9,942                141.2692 AUD
Purchase      234                  141.4489 AUD
Purchase      1,61                 141.1004 AUD
Purchase      6,251                141.5133 AUD
Purchase      17,154               141.1170 AUD
Purchase      609                  140.6281 AUD
Purchase      8,359                141.6900 AUD
Purchase      4,137                141.4350 AUD
Purchase      1,611                141.1004 AUD
Purchase      512                  139.9000 AUD
Sale          535                  141.6900 AUD
Sale          547                  141.6900 AUD
Sale          256                  141.6900 AUD
Sale          4,052                140.6000 AUD
Sale          9,942                141.2692 AUD
Sale          100                  141.6900 AUD
Sale          17,154               141.1170 AUD
Sale          4,900                141.4183 AUD
Sale          1,611                141.1004 AUD
Sale          529                  141.6900 AUD
Sale          1,827                141.6900 AUD
Sale          145                  141.6900 AUD
Sale          83                   141.6900 AUD
Sale          247                  141.6900 AUD
Sale          540                  141.6900 AUD
Sale          681                  141.6900 AUD
Sale          1,209                141.6900 AUD
Sale          335                  141.6900 AUD
Sale          435                  141.6900 AUD
Sale          233                  141.6900 AUD
Sale          155                  141.6900 AUD
Sale          5,518                138.1100 AUD
Sale          627                  140.6000 AUD
Sale          502                  141.6900 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          4900          141.4183
CFD            Short         609           140.6281
CFD            Short         6251          141.5132

(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 April 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