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               10 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      27,465,514      2.83%      811,437       0.08%
securities
(2) Derivatives       35,372      0.00%      261,581       0.03%
(other than
options)
(3) Options and        2,175      0.00%        1,000       0.00%
agreements to
purchase/sell
Total             27,503,061      2.83%    1,074,018       0.11%


(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      1,700                33.0600
Purchase      1,811                32.5600
Purchase      23,000               32.5600
Purchase      23,251               32.7189
Purchase      1,766                33.2379
Purchase      1,310                33.0418
Purchase      23,487               32.7694
Purchase      443                  32.5600
Purchase      23,000               32.5600
Purchase      52,626               32.6971
Purchase      300                  32.3947
Purchase      400                  33.1555
Purchase      1,766                33.2420
Purchase      412                  32.8900
Purchase      50,370               32.7897
Purchase      400                  33.1555
Purchase      17,559               32.9466
Purchase      1,000                32.4700
Purchase      961                  20.9687
Purchase      4,332                32.5600
Purchase      600                  32.9929
Purchase      3,246                32.2981
Purchase      217                  32.8900
Purchase      372                  33.1318
Purchase      20,040               32.6303
Purchase      452                  32.8900
Purchase      3,246                32.2981
Purchase      7,502                32.7309
Purchase      7,635                32.7392
Sale          76,431               32.8158
Sale          23,000               32.5600
Sale          500                  33.6544
Sale          1,000                32.4700
Sale          7,635                32.7330
Sale          961                  20.9687
Sale          3,246                32.2981
Sale          600                  32.9929
Sale          400                  33.1555
Sale          17,559               32.9466
Sale          1,766                33.2379
Sale          300                  32.3947
Sale          3,164                33.5606
Sale          20,040               32.6273
Sale          50,370               32.7868
Sale          23,251               32.7189
Sale          180                  32.6968
Sale          7,502                32.7247
Sale          600                  32.9929
Sale          1,700                33.0600
Sale          300                  32.3947
Sale          15,000               32.7000
Sale          102,500              32.6000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         3246          32.298
CFD            Short         8808          32.4422
CFD            Short         3518          32.5714
CFD            Short         23251         32.7189
CFD            Short         7635          32.7392
CFD            Short         7714          32.8717
CFD            Short         1310          33.0418
CFD            Short         1700          33.06
CFD            Short         372           33.1318
CFD            Shor          400           33.1555
CFD            Short         1766          33.242
CFD            Long          300           32.3947
CFD            Long          1000          32.47
CFD            Long          7502          32.7246
CFD            Long          37725         32.7504
CFD            Long          8245          32.7931
CFD            Long          11534         32.8403
CFD            Long          17559         32.9465
CFD            Long          600           32.9929
CFD            Long          4400          33.0861
CFD            Long          3164          33.5606
CFD            Long          500           33.6544

(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            Purchasing        375                48        EURO            20/03/2008    2


(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                         11 January 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                    3,400.0000       EURO           20/03/2008
Option            Purchased   500                    4,000.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   375                    4,800.0000       EURO           20/03/2008
Option            Purchased   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   150                    4,000.0000       EURO           20/06/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -500                   3,400.0000       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