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               24 October 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      12,640,566     2.77%        311,407     0.07%
securities
(2) Derivatives       22,376     0.00%            689     0.00%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total             12,662,942     2.77%        312,096     0.07%


(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      10,568               64.1000 AUD
Purchase      604                  67.0000 AUD
Purchase      119                  65.7700 AUD
Purchase      141                  65.7700 AUD
Purchase      710                  64.9724 AUD
Purchase      535                  64.9724 AUD
Purchase      107                  65.7700 AUD
Purchase      596                  64.9724 AUD
Purchase      1,762                64.9725 AUD
Purchase      16                   65.7700 AUD
Purchase      90                   67.0000 AUD
Purchase      318                  67.0000 AUD
Purchase      79                   67.0000 AUD
Purchase      279                  67.0000 AUD
Purchase      3,844                64.1000 AUD
Purchase      1,632                67.0000 AUD
Purchase      352                  65.7700 AUD
Purchase      209                  64.9724 AUD
Purchase      6,938                64.0936 AUD
Purchase      2,440                64.9725 AUD
Purchase      492                  65.7700 AUD
Purchase      41                   65.7700 AUD
Purchase      809                  64.9724 AUD
Purchase      161                  65.7700 AUD
Purchase      100                  65.7700 AUD
Purchase      500                  64.9724 AUD
Purchase      82                   64.9725 AUD
Purchase      3,080                64.1000 AUD
Sale          602                  65.7700 AUD
Sale          6,938                64.0936 AUD
Sale          381                  65.7700 AUD
Sale          546                  65.7700 AUD
Sale          487                  64.1000 AUD
Sale          563                  64.1000 AUD
Sale          6,938                64.0936 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                         27 October 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