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               31 January 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      26,641,237      2.72%     1,116,433      0.11%
securities
(2) Derivatives      208,464      0.02%       278,639      0.03%
(other than
options)
(3) Options and      712,175      0.07%       551,800      0.06%
agreements to
purchase/sell
Total             27,561,876      2.82%      1,946,872     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      16,697               38.2700
Purchase      7,507                37.7609
Purchase      111,282              37.7611
Purchase      12,752               37.7078
Purchase      150,027              37.1800
Purchase      171                  36.7566
Purchase      44,115               37.7611
Purchase      19,643               37.7612
Purchase      128                  37.5131
Purchase      2,435                37.4125
Purchase      2,234                37.7600
Purchase      4,966                38.2700
Purchase      4,809                37.7602
Purchase      3,120                38.0136
Purchase      1,033                38.2700
Purchase      752                  38.2700
Purchase      6,032                37.7607
Purchase      3,940                37.1467
Purchase      569                  38.2700
Purchase      2,161                38.2700
Purchase      3,945                38.2700
Purchase      500                  32.7786
Purchase      2,581                38.2700
Purchase      1,067                38.2700
Purchase      23,351               38.2700
Purchase      1,030                38.2700
Purchase      4,869                37.7605
Purchase      15,244               38.2700
Purchase      13,230               37.2915
Purchase      3,505                37.7601
Purchase      3,933                37.4326
Purchase      42,758               37.3123
Purchase      61                   38.2700
Purchase      2,435                37.4125
Purchase      4,263                37.7603
Purchase      7,822                37.7614
Purchase      22,110               37.8017
Purchase      1,870                37.7597
Purchase      7,900                37.2298
Purchase      3,000                37.0885
Sale          752                  38.2700
Sale          307                  36.5799
Sale          16,697               38.2700
Sale          3,511                37.6930
Sale          23,351               38.2700
Sale          1,692                38.2700
Sale          41,756               37.2487
Sale          60,157               36.9815
Sale          100                  37.4433
Sale          2,435                37.4125
Sale          19,621               38.2700
Sale          500                  37.5612
Sale          1,237                38.2700
Sale          7,900                37.2298
Sale          7,900                37.2298
Sale          30,757               37.9989
Sale          210                  37.9338
Sale          299                  38.2700
Sale          128                  37.4669
Sale          4,966                38.2700

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         500           32.7786
CFD            Short         171           36.7566
CFD            Short         3000          37.0885
CFD            Short         3940          37.1466
CFD            Short         42758         37.3123
CFD            Short         2435          37.4125
CFD            Short         22110         37.8017
CFD            Long          60157         36.9814
CFD            Long          7900          37.2298
CFD            Long          41756         37.2487
CFD            Long          100           37.4433
CFD            Long          12037         37.4982
CFD            Long          500           37.5612
CFD            Long          50137         37.623
CFD            Long          3511          37.693

(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)
CALL            Purchase          100000             47          AMER          19/09/2008  13.125
CALL            Selling           50000              37          AMER          20/03/2008  .305

(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                         01 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                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -500                   3,200.0000       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