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               11 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      27,381,692      2.80%    1,192,024       0.12%
securities
(2) Derivatives       78,154      0.01%      321,678       0.03%
(other than
options)
(3) Options and      712,175      0.07%      552,050       0.06%
agreements to
purchase/sell
Total             28,172,021      2.88%    2,065,752       0.21%


(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      197                  38.0572
Purchase      125                  38.4500
Purchase      36,416               38.3274
Purchase      230                  38.4500
Purchase      229                  38.5200
Purchase      100                  38.4500
Purchase      100                  38.4500
Purchase      37,000               38.1036
Purchase      90                   38.4500
Purchase      1,143                38.8727
Purchase      75                   38.4500
Purchase      125                  38.4500
Purchase      125                  38.7400
Purchase      325                  38.4500
Purchase      75                   38.4500
Purchase      160                  38.4500
Purchase      253                  38.7400
Purchase      1,036                38.0500
Purchase      125                  38.4500
Purchase      100                  38.4500
Purchase      125                  38.4500
Purchase      125                  38.4500
Purchase      75                   38.4500
Purchase      225                  38.4500
Purchase      330                  38.8727
Purchase      225                  38.4500
Purchase      100                  38.4500
Purchase      90                   38.4500
Purchase      44,782               38.2062
Purchase      17,111               38.3162
Purchase      75                   38.4500
Purchase      250                  38.4500
Purchase      90                   38.4500
Purchase      5,300                38.3916
Purchase      80                   38.4500
Purchase      11,589               38.3935
Purchase      75                   38.4500
Sale          110,000              38.3500
Sale          28,000               38.2315
Sale          23,095               37.9554
Sale          802                  38.5027
Sale          142                  37.8523
Sale          52,915               38.2547
Sale          2,800                38.0533
Sale          682                  37.8217
Sale          6,498                38.0500

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         197           38.0572
CFD            Short         44782         38.2062
CFD            Short         1765          38.266
CFD            Short         17111         38.3161
CFD            Short         36416         38.3274
CFD            Short         5300          38.3916
CFD            Short         9824          38.4164
CFD            Long          682           37.8217
CFD            Long          23095         37.9553
CFD            Long          2800          38.0533
CFD            Long          52915         38.2547
CFD            Long          37932         38.3162
CFD            Long          14824         38.423

(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)
PUT             Selling           250                38        EURO            20/03/2008         .23


(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                         12 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