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               14 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      27,904,230     2.85%     1,174,355       0.12%
securities
(2) Derivatives       69,992     0.01%       540,568       0.06%
(other than
options)
(3) Options and      712,175     0.07%       552,050       0.06%
agreements to
purchase/sell
Total             28,686,397    2.93%      2,266,973       0.23%


(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      7,200                38.7763
Purchase      10,101               38.6242
Purchase      4,347                38.6242
Purchase      14,014               38.7325
Purchase      53,967               38.7056
Purchase      71,592               38.5797
Purchase      4,162                38.7325
Purchase      3,462                37.3626
Purchase      8,621                38.5200
Purchase      2,056                38.6242
Purchase      7,451                38.6242
Purchase      1,920                38.6242
Purchase      1,752                37.2489
Purchase      3,586                38.6242
Purchase      100                  38.7485
Purchase      7,821                37.3626
Purchase      1,345                38.6242
Purchase      249                  38.5200
Purchase      3,078                38.5200
Purchase      263                  38.2200
Purchase      6,115                38.7325
Purchase      2,337                37.3626
Purchase      6,912                38.3222
Purchase      13,862               38.1333
Purchase      249                  38.5200
Purchase      490                  38.2200
Purchase      3,646                38.6242
Purchase      2,269                38.6242
Purchase      159                  37.6595
Purchase      9,878                38.5200
Purchase      2,602                38.5200
Sale          900                  38.7103
Sale          1,126                38.5200
Sale          300                  38.1137
Sale          196                  38.5127
Sale          6,057                38.5976
Sale          8,970                38.3437
Sale          2,705                37.4269
Sale          1,000                37.8000
Sale          18,334               38.5956
Sale          53,196               38.6050
Sale          83                   38.9800

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         6800          37.8251
CFD            Short         6912          38.3222
CFD            Short         7062          38.43
CFD            Short         71592         38.5796
CFD            Short         53967         38.7056
CFD            Short         7200          38.7762
CFD            Long          1000          37.8
CFD            Long          300           38.1137
CFD            Long          8970          38.3437
CFD            Long          6501          38.4935
CFD            Long          196           38.5127
CFD            Long          6057          38.5975
CFD            Long          53196         38.6049
CFD            Long          11833         38.6516
CFD            Long          900           38.7103

(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                         15 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                    4,000.0000       EURO           20/06/2008
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   250                    3,200.0000       EURO           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   -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