Rule 8.3 - XSTRATA PLC

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              XSTRATA PLC
Class of relevant security    ORD USD0.50
to which the dealings being
disclosed relate (Note 2)
Date of dealing               27 December 2007

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      27,205,337      2.80%      698,671       0.07%
securities
(2) Derivatives      256,561      0.03%      189,617       0.02%
(other than
options)
(3) Options and        1,550      0.00%          500       0.00%
agreements to
purchase/sell
Total             27,463,448      2.83%      888,788       0.09%


(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      5,991                36.4147
Purchase      29,718               36.3389
Purchase      2,412                36.2404
Purchase      45,047               36.4567
Purchase      145                  36.3000
Purchase      2,400                36.3078
Purchase      522                  36.4306
Purchase      1,016                36.5060
Purchase      204                  36.0300
Purchase      45,393               36.2859
Purchase      38,486               36.3610
Purchase      70,224               36.3679
Purchase      61,419               36.2935
Purchase      1,016                36.5060
Purchase      2,766                36.4900
Purchase      38,486               36.3610
Purchase      173                  36.4700
Purchase      204                  36.4900
Purchase      13,626               36.3165
Purchase      2,412                36.2404
Purchase      2,777                36.5324
Purchase      2,500                36.0000
Sale          204                  36.0300
Sale          2,400                36.3009
Sale          38,486               36.3610
Sale          29,718               36.3356
Sale          2,766                36.4900
Sale          145                  36.3000
Sale          2,412                36.2404
Sale          47,813               36.4586
Sale          5,991                36.4078
Sale          204                  36.4900
Sale          2,777                36.5324
Sale          61,419               36.2935
Sale          45,047               36.4567
Sale          13,626               36.3132
Sale          70,224               36.3679
Sale          61,419               36.2935
Sale          173                  36.4700
Sale          550                  36.0496
Sale          1,016                36.5060
Sale          45,393               36.2859

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         2500          36
CFD            Short         2412          36.2403
CFD            Short         28624         36.3369
CFD            Short         1094          36.3893
CFD            Short         5991          36.4146
CFD            Short         1016          36.506
CFD            Short         2777          36.5324
CFD            Long          550           36.0496
CFD            Long          9615          36.2723
CFD            Long          45393         36.2858
CFD            Long          2400          36.3009
CFD            Long          4011          36.4112

(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)                 YES


Date of disclosure                         28 December 2007
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

SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)

OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased   500                    3,400.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   150                    4,000.0000       EURO           20/06/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008



Notes

1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given.
Full details of any  existing agreements to purchase or to sell  should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk