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               14 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      14,133,001      3.09%       284,777      0.06%
securities
(2) Derivatives        7,240      0.00%         1,246      0.00%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total             14,140,241      3.10%       286,023      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      8,179                135.8700 AUD
Purchase      17,456               136.6200 AUD
Purchase      85,324               136.6200 AUD
Purchase      581                  135.5500 AUD
Purchase      89                   136.5300 AUD
Purchase      83                   135.5500 AUD
Purchase      743                  138.1400 AUD
Purchase      330                  135.5500 AUD
Purchase      6,037                138.3000 AUD
Purchase      23,656               137.6086 AUD
Purchase      1,282                138.3000 AUD
Purchase      78                   135.5500 AUD
Purchase      178                  138.3000 AUD
Sale          635                  137.0752 AUD
Sale          497                  137.0751 AUD
Sale          8,179                135.8700 AUD
Sale          175                  137.0751 AUD
Sale          486                  137.0752 AUD
Sale          31,835               137.1619 AUD
Sale          190                  137.0752 AUD
Sale          743                  138.1400 AUD
Sale          23,656               137.6086 AUD
Sale          323                  137.0752 AUD
Sale          124                  137.0751 AUD
Sale          295                  137.0751 AUD
Sale          535                  137.0752 AUD
Sale          416                  137.0751 AUD
Sale          387                  137.0751 AUD
Sale          2,091                137.0751 AUD
Sale          159                  137.0751 AUD
Sale          121                  137.0752 AUD
Sale          185                  137.0751 AUD
Sale          78                   135.5500 AUD
Sale          3,529                137.0752 AUD
Sale          138                  137.0751 AUD


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)


(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                         15 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