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               17 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       26,904,284     2.77%     1,238,441      0.13%
securities
(2) Derivatives       210,114     0.02%       202,274      0.02%
(other than
options)
(3) Options and         2,025     0.00%        1,800       0.00%
agreements to
purchase/sell
Total              27,116,423     2.79%     1,442,515      0.15%

(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      20,500               31.3714
Purchase      500                  32.3173
Purchase      1,643                30.9700
Purchase      64,355               31.1839
Purchase      511                  30.9473
Purchase      1,490                32.2968
Purchase      109,670              31.3908
Purchase      17,000               32.5889
Purchase      9,369                31.4402
Purchase      35,445               32.5137
Purchase      80                   31.0316
Purchase      500                  32.3173
Purchase      30,233               32.0517
Purchase      176                  30.9700
Purchase      109,670              31.3908
Purchase      202                  30.9500
Purchase      9,005                31.1084
Purchase      3,031                31.1554
Purchase      14,082               31.2649
Purchase      17,000               32.5889
Purchase      2,900                30.8383
Purchase      69,557               31.1038
Purchase      1,101                30.9700
Purchase      91,023               31.1783
Purchase      182                  30.9700
Purchase      3,399                30.9090
Purchase      4,664                31.1852
Purchase      46,543               30.9700
Sale          3,399                30.9090
Sale          13,569               32.5361
Sale          64,355               31.1811
Sale          7,820                30.9700
Sale          13,569               32.5361
Sale          500                  32.3173
Sale          3,031                31.1554
Sale          182                  30.9641
Sale          91,023               31.1783
Sale          35,445               32.5137
Sale          30,233               32.0517
Sale          9,005                31.1084
Sale          69,557               31.1010
Sale          202                  30.9500
Sale          15,668               32.5361
Sale          91,023               31.1783
Sale          1,564                30.9700
Sale          109,670              31.3908
Sale          2,900                30.8383
Sale          2,900                30.8383
Sale          108,000              31.7500
Sale          17,000               32.5889
Sale          202                  30.9500
Sale          2,348                30.9700
Sale          3,031                31.1554
Sale          511                  30.9417
Sale          9,369                31.4342
Sale          14,082               31.2589

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         511           30.9473
CFD            Short         59586         31.0651
CFD            Short         9971          31.3344
CFD            Short         9369          31.4401
CFD            Short         30233         32.0516
CFD            Short         500           32.3173
CFD            Short         15668         32.5361
CFD            Short         153           32.58
CFD            Long          2900          30.8383
CFD            Long          3399          30.9089
CFD            Long          182           30.9641
CFD            Long          9005          31.1084
CFD            Long          800           31.1372
CFD            Long          3031          31.1554
CFD            Long          63555         31.1816
CFD            Long          14082         31.2589

(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            300               30         EURO          20/03/08   2.25

(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                         18 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   150                    4,000.0000       EURO           20/06/2008
Option            Purchased  -300                    3,000.0000       EURO           20/03/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
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