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 February 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      15,097,498      3.30%    1,062,051       0.23%
securities
(2) Derivatives            0      0.00%        5,636       0.00%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             15,097,498      3.30%    1,067,687       0.23%


(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      40,000               133.7834 AUD
Purchase      42,304               132.4153 AUD
Purchase      857                  133.7700 AUD
Purchase      161                  131.5000 AUD
Purchase      4,426                133.7700 AUD
Purchase      268                  131.5000 AUD
Purchase      10,812               133.7566 AUD
Purchase      234                  133.7700 AUD
Purchase      1,000                131.9262 AUD
Purchase      81                   131.5000 AUD
Purchase      1,836                132.4100 AUD
Purchase      181                  131.5000 AUD
Purchase      1,067                132.4100 AUD
Purchase      40,000               133.7834 AUD
Purchase      234                  133.7700 AUD
Purchase      122                  131.1300 AUD
Sale          40                   132.4100 AUD
Sale          103                  132.4100 AUD
Sale          842                  132.2993 AUD
Sale          251                  132.2993 AUD
Sale          202                  132.4100 AUD
Sale          40,000               133.7834 AUD
Sale          10,812               133.7566 AUD
Sale          518                  132.2993 AUD
Sale          13                   132.4100 AUD
Sale          37                   132.4100 AUD
Sale          64                   132.2993 AUD
Sale          573                  132.2992 AUD
Sale          10,812               133.7566 AUD
Sale          42,304               132.4152 AUD
Sale          182                  132.4100 AUD
Sale          410                  132.2992 AUD
Sale          111                  132.4100 AUD
Sale          73                   132.4100 AUD
Sale          88                   132.4100 AUD
Sale          51                   132.4100 AUD
Sale          480                  132.2993 AUD
Sale          1,337                133.7700 AUD
Sale          105                  132.4100 AUD
Sale          123                  132.4100 AUD
Sale          164                  132.2993 AUD
Sale          838                  132.2992 AUD
Sale          114                  132.4100 AUD
Sale          171                  132.2992 AUD
Sale          11                   132.4100 AUD
Sale          4,443                132.2993 AUD
Sale          110                  132.4100 AUD
Sale          976                  132.4100 AUD
Sale          26                   132.4100 AUD
Sale          198                  132.4100 AUD
Sale          124                  132.2992 AUD
Sale          88                   132.2993 AUD
Sale          55                   132.2993 AUD
Sale          51                   132.4100 AUD
Sale          35                   132.4100 AUD
Sale          19                   132.4100 AUD
Sale          236                  132.2992 AUD
Sale          487                  132.2992 AUD
Sale          937                  132.2992 AUD
Sale          341                  132.2993 AUD
Sale          509                  132.2992 AUD
Sale          531                  132.2993 AUD
Sale          919                  132.2992 AUD
Sale          238                  132.2993 AUD
Sale          181                  132.4100 AUD
Sale          185                  132.2992 AUD
Sale          54                   132.4100 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         1000          131.9262

(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 February 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