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               22 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      26,978,303      2.76%    1,143,340       0.12%
securities
(2) Derivatives      143,797      0.01%      215,853       0.02%
(other than
options)
(3) Options and        2,025      0.00%        1,800       0.00%
agreements to
purchase/sell
Total             27,124,125      2.77%    1,360,993       0.14%


(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      1,800                29.6746
Purchase      4,000                33.9336
Purchase      5,064                30.5143
Purchase      60,000               30.7056
Purchase      60,000               30.9665
Purchase      99                   32.8000
Purchase      301                  31.1981
Purchase      150,000              32.1856
Purchase      108,470              32.4065
Purchase      60,000               30.8281
Purchase      500                  31.2700
Purchase      27,000               32.7972
Purchase      1,542                31.2622
Purchase      9,978                31.1579
Purchase      275,000              31.7399
Purchase      183,499              31.5322
Purchase      36,978               32.3549
Purchase      10,78                31.4784
Purchase      2,100                29.0955
Purchase      460,244              31.6936
Purchase      8,853                32.8000
Sale          201                  30.7900
Sale          1,800                29.6693
Sale          382,146              31.5727
Sale          9,978                31.1579
Sale          5,064                30.5143
Sale          221                  32.8000
Sale          5,064                30.5143
Sale          2,100                29.0902
Sale          1,923                31.1297
Sale          1,542                31.2583
Sale          108,470              32.4065
Sale          183,499              31.5322
Sale          150,000              32.1800
Sale          301                  31.1981
Sale          1,542                31.2622
Sale          60,000               30.9606
Sale          27,000               32.7972
Sale          275,000              31.7344
Sale          60,000               30.8222
Sale          10,780               31.4784

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         2100          29.0954
CFD            Short         2628          30.3232
CFD            Short         60000         30.7056
CFD            Short         60000         30.8281
CFD            Short         67599         30.985
CFD            Short         301           31.1981
CFD            Short         183499        31.5322
CFD            Short         54117         31.9586
CFD            Short         150000        32.1856
CFD            Short         4000          33.9336
CFD            Long          1800          29.6692
CFD            Long          60000         30.9606
CFD            Long          66004         31.0732
CFD            Long          1923          31.1296
CFD            Long          28339         31.2427
CFD            Long          1542          31.2582
CFD            Long          10780         31.4784
CFD            Long          275000        31.7343
CFD            Long          223           32.7937

(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                         23 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   375                    4,800.0000       EURO           20/03/2008
Option            Purchased   350                    4,000.0000       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   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008



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