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               06 March 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      28,334,860     2.90%     1,363,683       0.14%
securities
(2) Derivatives       75,424     0.01%       483,624       0.05%
(other than
options)
(3) Options and    1,072,275     0.11%       912,750       0.09%
agreements to
purchase/sell
Total             29,482,559     3.02%     2,760,057       0.28%


(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      9,158                39.7813
Purchase      4,505                39.7600
Purchase      6,506                39.9259
Purchase      7,749                39.7441
Purchase      15,532               39.8087
Purchase      30                   39.7877
Purchase      400                  39.7793
Purchase      200                  39.9000
Purchase      150                  39.7876
Purchase      80                   39.8284
Purchase      69,792               39.8844
Purchase      200                  39.7980
Purchase      815                  39.6850
Purchase      37,590               39.9228
Sale          339                  39.7417
Sale          200                  39.6934
Sale          2,600                39.7000
Sale          9,320                39.7845
Sale          180                  39.7600
Sale          6,000                39.7365
Sale          253                  39.7600
Sale          2,138                39.7668
Sale          11,818               39.7665


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         7749          39.744
CFD            Short         400           39.7792
CFD            Short         9158          39.7813
CFD            Short         69792         39.8843
CFD            Short         37590         39.9227
CFD            Short         6506          39.9259
CFD            Long          200           39.6934
CFD            Long          2600          39.7
CFD            Long          6000          39.7365
CFD            Long          11818         39.7665

(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

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.

None



Is a Supplemental Form 8 attached? (Note 9)                 YES


Date of disclosure                         07 March 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   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   600                    4,000.0000       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   360,000                42.0000          AMER           20/03/2008
Option            Purchased   360,000                40.0000          AMER           20/03/2008
Option            Purchased   -360,000               36.0000          AMER           20/03/2008
Option            Purchased   -360,000               45.0000          AMER           20/03/2008
Option            Purchased   -140,000               34.0000          AMER           20/03/2008
Option            Purchased   500                    3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,800.0000       EURO           20/03/2008
Option            Purchased   -350                   4,000.0000       EURO           20/03/2008
Option            Purchased   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -100                   4,000.0000       EURO           20/06/2008
Option            Purchased   150                    3,600.0000       EURO           20/03/2008
Option            Purchased   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   375                    4,800.0000       EURO           20/03/2008
Option            Purchased   -50,000                37.0000          AMER           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