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               25 March 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      14,025,391      3.07%      331,443       0.07%
securities
(2) Derivatives        7,240      0.00%       40,315       0.01%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             14,032,631      3.07%      371,758       0.08%


(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      3,650                117.0000 AUD
Purchase      174                  117.0117 AUD
Purchase      33,000               117.7264 AUD
Purchase      33,000               117.7264 AUD
Purchase      14,338               117.0117 AUD
Purchase      47,512               117.5081 AUD
Purchase      47,404               118.0780 AUD
Purchase      98                   119.6958 AUD
Purchase      5,424                118.4666 AUD
Purchase      3,718                118.4666 AUD
Purchase      436                  118.3139 AUD
Purchase      16,500               118.5572 AUD
Purchase      37,300               118.8297 AUD
Purchase      70                   118.0000 AUD
Purchase      16,500               118.5572 AUD
Sale          33,000               117.7264 AUD
Sale          400                  117.6700 AUD
Sale          2,102                117.0000 AUD
Sale          70                   118.0000 AUD
Sale          33,000               117.7264 AUD
Sale          16,500               118.5572 AUD
Sale          29,843               117.9988 AUD
Sale          31,509               117.0000 AUD
Sale          17,561               118.2126 AUD
Sale          3,376                117.0000 AUD
Sale          16,500               118.5572 AUD
Sale          980                  118.8014 AUD
Sale          3,095                117.0000 AUD
Sale          480                  117.0000 AUD
Sale          14,338               117.0117 AUD
Sale          4,119                117.0000 AUD
Sale          16,500               118.5572 AUD
Sale          10,506               117.0000 AUD
Sale          174                  117.0117 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         37300         118.8296
CFD            Long          400           117.67

(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                         26 March 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