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               09 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      27,550,315      2.84%       725,175      0.07%
securities
(2) Derivatives       42,661      0.00%       301,679      0.03%
(other than
options)
(3) Options and        2,050      0.00%         1,000      0.00%
agreements to
purchase/sell
Total             27,595,026      2.84%      1,027,854     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      55,461               33.6381
Purchase      23,000               32.7700
Purchase      2,348                32.6700
Purchase      1,491                33.6272
Purchase      13,099               33.1200
Purchase      12,245               33.2103
Purchase      9,370                33.2686
Purchase      1,590                33.8792
Purchase      852                  34.3300
Purchase      981                  33.6500
Purchase      213                  34.6450
Purchase      32,051               33.2921
Purchase      180                  32.6968
Purchase      1,160                33.1200
Purchase      4,200                32.9759
Purchase      2,804                33.6500
Purchase      2,027                33.7866
Purchase      24,720               33.5434
Purchase      9,810                33.6500
Purchase      10,277               33.5702
Purchase      147                  33.4700
Purchase      32,051               33.2921
Purchase      13,797               33.6500
Purchase      4,911                34.6450
Purchase      90                   32.7308
Purchase      6,576                33.1200
Purchase      487                  32.7420
Purchase      2,804                33.1200
Purchase      18,779               34.6500
Purchase      5,192                33.6400
Purchase      2,943                33.6500
Purchase      2,943                33.1200
Purchase      8,204                33.1436
Purchase      2,274                33.7762
Purchase      10,830               33.6500
Purchase      1,174                33.1200
Purchase      17,005               34.0850
Purchase      103                  337.7673
Sale          6,576                33.1200
Sale          487                  32.7420
Sale          10,277               33.5672
Sale          23,000               32.7700
Sale          55,461               33.6381
Sale          24,720               33.5404
Sale          1,491                33.6272
Sale          2,300                33.2687
Sale          180                  32.6968
Sale          8,204                33.1436
Sale          6,312                33.3433
Sale          4,200                32.9759
Sale          8,445                35.2200
Sale          8,445                35.2200
Sale          103                  337.7673
Sale          142                  33.4500
Sale          17,005               34.0850
Sale          9,370                33.2622
Sale          6,312                33.3433
Sale          1,900                33.2687
Sale          55,461               33.6381
Sale          32,051               33.2921
Sale          12,245               33.2040

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         4200          32.9758
CFD            Short         1585          33.0285
CFD            Short         8204          33.1435
CFD            Short         9370          33.2685
CFD            Short         8692          33.6689
CFD            Long          12245         33.2039
CFD            Long          12676         33.3274
CFD            Long          10320         33.3485
CFD            Long          1491          33.6272
CFD            Long          12044         33.7644
CFD            Long          17005         34.0849

(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                         10 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   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                   3,600.0000       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