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               05 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      27,400,640      2.80%     1,098,682      0.11%
securities
(2) Derivatives      118,530      0.01%       275,850      0.03%
(other than
options)
(3) Options and      712,175      0.07%       551,800      0.06%
agreements to
purchase/sell
Total             28,231,345      2.89%      1,926,332     0.20%


(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      5,682                38.0881
Purchase      27,049               38.1685
Purchase      9,236                38.2127
Purchase      9,342                38.5012
Purchase      70,093               38.0881
Purchase      8,602                38.5262
Purchase      6,882                38.0882
Purchase      50                   37.6200
Purchase      322                  38.1695
Purchase      1,425                38.0872
Purchase      3,742                38.0875
Purchase      1,724                37.9000
Purchase      2,160                38.0873
Purchase      276                  38.5262
Purchase      7,410                38.5262
Purchase      27,906               38.5262
Purchase      1,908                38.5262
Purchase      12,283               38.0881
Purchase      376                  38.5262
Purchase      2,330                37.9000
Purchase      249                  37.9000
Purchase      118,266              38.5087
Purchase      2,584                38.0872
Purchase      2,588                38.0872
Purchase      28,090               38.0881
Purchase      4,795                38.0876
Purchase      2,939                38.0875
Purchase      7,382                37.6200
Purchase      1,137                38.0873
Purchase      35,000               37.9000
Sale          3,050                38.4600
Sale          12,768               37.9084
Sale          5,501                37.6847
Sale          7,332                37.9000
Sale          50                   37.6200
Sale          47,448               37.9675
Sale          30,627               38.5298
Sale          7,382                37.6200
Sale          1,000                38.5327
Sale          3,604                38.5298
Sale          30,061               38.0962

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         2658          37.7519
CFD            Short         27049         38.1684
CFD            Short         6578          38.3989
CFD            Short         9342          38.5011
CFD            Short         118266        38.5086
CFD            Long          5501          37.6846
CFD            Long          3602          37.8992
CFD            Long          9166          37.9119
CFD            Long          47448         37.9674
CFD            Long          1156          38.0256
CFD            Long          30061         38.0962
CFD            Long          276           38.2745
CFD            Long          1000          38.5327

(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                         06 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

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   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   -140,000               34.0000          AMER           20/03/2008
Option            Purchased   -50,000                37.0000          AMER           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008
Option            Purchased   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -360,000               36.0000          AMER           20/03/2008
Option            Purchased   150                    3,600.0000       EURO           20/03/2008
Option            Purchased   360,000                42.0000          AMER           20/03/2008
Option            Purchased   350                    4,000.0000       EURO           20/03/2008
Option            Purchased   375                    4,800.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   500                    3,400.0000       EURO           20/03/2008
Option            Purchased   100,000                47.0000          AMER           19/09/2008
Option            Purchased   250,000                42.0000          AMER           20/03/2008
Option            Purchased   150                    4,000.0000       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