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               04 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      27,314,182      2.81%       768,972      0.08%
securities
(2) Derivatives      159,823      0.02%       180,350      0.02%
(other than
options)
(3) Options and        1,550      0.00%         1,000      0.00%
agreements to
purchase/sell
Total             27,475,555      2.83%        950,322     0.10%

(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      2,308                36.5820
Purchase      639                  35.4119
Purchase      86,693               36.6389
Purchase      700                  35.2200
Purchase      85                   36.3185
Purchase      12,104               35.9765
Purchase      80,122               35.5728
Purchase      455                  36.7539
Purchase      143,671              35.8010
Purchase      53,000               36.9700
Purchase      110                  36.3185
Purchase      432                  36.8961
Purchase      1,053                35.2267
Purchase      4,395                35.2200
Purchase      443                  36.4000
Purchase      150                  36.4467
Purchase      30,736               36.8000
Purchase      432                  36.8961
Purchase      110                  36.3185
Purchase      4,332                35.2200
Purchase      1,730                35.9399
Purchase      1,397                36.6171
Purchase      10,723               35.8064
Purchase      34,105               35.9651
Purchase      3,297                36.6611
Purchase      5,058                35.6451
Purchase      1,397                36.6171
Purchase      49,624               35.3712
Purchase      81,793               36.0346
Purchase      34,105               35.9651
Purchase      84,058               35.6143
Purchase      4,049                35.8770
Purchase      20,021               36.0251
Sale          1,397                36.6171
Sale          34,105               35.9651
Sale          3,372                36.8802
Sale          639                  35.4119
Sale          143,671              35.8010
Sale          5,058                35.6451
Sale          1,053                35.2200
Sale          150                  36.4401
Sale          2,272                35.3761
Sale          59,788               36.8281
Sale          81,793               36.0346
Sale          455                  36.7539
Sale          3,374                35.3761
Sale          53,000               36.9700
Sale          80,122               35.5728
Sale          2,308                36.5820
Sale          3,297                36.6611
Sale          4,049                35.8770
Sale          4,049                35.8770
Sale          86,693               36.6389
Sale          7,605                35.3761
Sale          432                  36.8961
Sale          49,624               35.3680
Sale          7,639                36.8802
Sale          1,730                35.9399
Sale          2,282                36.8802
Sale          1,397                36.6125
Sale          143,671              35.8010
Sale          12,104               35.9697
Sale          10,723               35.7996
Sale          1,397                36.6171
Sale          20,021               36.0218
Sale          155,000              36.5400
Sale          455                  36.7539

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         612           34.9997
CFD            Short         1053          35.2266
CFD            Short         10723         35.8063
CFD            Short         19409         36.0573
CFD            Short         2308          36.5819
CFD            Short         432           36.8961
CFD            Long          41592         35.1933
CFD            Long          4049          35.8769
CFD            Long          12104         35.9696
CFD            Long          81793         36.0345
CFD            Long          8032          36.2724
CFD            Long          150           36.4401
CFD            Long          1397          36.6125
CFD            Long          455           36.7538

(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                         07 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   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   250                    3,200.0000       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                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   500                    3,400.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   250                    3,200.0000       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                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
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