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               25 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      27,806,380     2.84%     1,179,599       0.12%
securities
(2) Derivatives       72,726     0.01%       205,383       0.02%
(other than
options)
(3) Options and      712,175     0.07%       552,050       0.06%
agreements to
purchase/sell
Total             28,591,281     2.92%      1,937,032      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      896                  40.9154
Purchase      117                  41.5800
Purchase      624                  40.9154
Purchase      6,023                40.9154
Purchase      2,366                41.0718
Purchase      15,174               40.9154
Purchase      3,500                40.9894
Purchase      70                   41.0579
Purchase      581                  40.9154
Purchase      432                  40.9154
Purchase      121                  40.1200
Purchase      637                  40.9370
Purchase      1,191                40.7308
Purchase      37,200               41.0540
Purchase      548                  40.9154
Purchase      772                  40.9154
Purchase      473                  40.9154
Purchase      2,711                40.9154
Purchase      539                  40.9370
Purchase      259                  40.9370
Purchase      463                  40.9370
Purchase      1,175                40.9370
Purchase      33,809               40.6842
Purchase      370                  41.0574
Purchase      1,191                40.6929
Purchase      256                  41.0744
Purchase      256                  40.9370
Purchase      1,010                40.9154
Purchase      1,249                40.9154
Purchase      2,700                40.8200
Purchase      3,328                40.9154
Purchase      9,500                41.3122
Purchase      259                  40.9370
Sale          46,082               39.4700
Sale          76,754               40.7900
Sale          97,651               40.9992
Sale          2,846                41.1240
Sale          162                  41.2400
Sale          370                  41.1276
Sale          12,306               41.1816
Sale          754                  41.0500
Sale          1,191                40.7308
Sale          30,772               41.0200

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         2700          40.82
CFD            Short         3500          40.9894
CFD            Short         37200         41.0539
CFD            Short         370           41.0573
CFD            Short         70            41.0578
CFD            Short         2366          41.0718
CFD            Short         9500          41.3122
CFD            Long          307           40.9621
CFD            Long          97651         40.9992
CFD            Long          1029          41.0867
CFD            Long          9842          41.1183
CFD            Long          2846          41.1239
CFD            Long          370           41.1275
CFD            Long          12306         41.1816

(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                         26 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   150                    3,600.0000       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                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -360,000               36.0000          AMER           20/03/2008
Option            Purchased   150                    4,000.0000       EURO           20/06/2008
Option            Purchased   360,000                42.0000          AMER           20/03/2008
Option            Purchased   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   350                    4,000.0000       EURO           20/03/2008
Option            Purchased   375                    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   -250                   3,800.0000       EURO           20/03/2008


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