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               15 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       26,979,622     2.78%     1,105,615      0.11%
securities
(2) Derivatives       184,857     0.02%       187,140      0.02%
(other than
options)
(3) Options and         2,025     0.00%        1,500       0.00%
agreements to
purchase/sell
Total              27,166,504      2.80%    1,294,255      0.13%

(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      1,877                34.1800
Purchase      6,203                33.9552
Purchase      800                  34.3543
Purchase      7,659                34.7726
Purchase      815                  34.1800
Purchase      358                  34.5321
Purchase      7,551                34.8851
Purchase      5,200                34.8851
Purchase      3,743                34.9415
Purchase      13,103               34.5906
Purchase      253                  34.9000
Purchase      106                  33.8000
Purchase      48,364               34.6458
Purchase      258                  35.0000
Purchase      3,939                34.8851
Purchase      2,498                34.0775
Purchase      145,655              34.4689
Purchase      2,348                34.1800
Purchase      215                  34.1800
Purchase      20,265               34.5269
Purchase      12,606               34.3848
Purchase      115                  34.1800
Purchase      252                  34.8400
Purchase      127,530              34.4518
Purchase      5,091                34.1800
Purchase      20,265               34.5269
Purchase      77,770               34.3801
Sale          860                  34.1800
Sale          145,655              34.4689
Sale          2,272                33.7426
Sale          2,498                34.0775
Sale          215                  34.1735
Sale          20,265               34.5269
Sale          1,955                34.1800
Sale          145,655              34.4689
Sale          7,659                34.7660
Sale          13,103               34.5840
Sale          3,380                33.7426
Sale          2,192                34.1800
Sale          253                  34.9000
Sale          4,332                34.1800
Sale          127,530              34.4518
Sale          48,364               34.6458
Sale          106                  33.8000
Sale          7,602                33.7426
Sale          3,743                34.9415
Sale          2,498                34.0775
Sale          6,203                33.9552
Sale          12,606               34.3817
Sale          1,465                34.1800
Sale          252                  34.8400
Sale          77,770               34.3770
Sale          800                  34.3543
Sale          1,939                34.1800
Sale          2,899                34.1800
Sale          800                  34.3543
Sale          3,743                34.9415

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1400          33.7673
CFD            Short         2400          34.038
CFD            Short         8806          34.5774
CFD            Short         7659          34.7726
CFD            Long          6203          33.9552
CFD            Long          215           34.1734
CFD            Long          60006         34.3135
CFD            Long          800           34.3543
CFD            Long          8633          34.5108
CFD            Long          13103         34.5839
CFD            Long          48364         34.6457
CFD            Long          9131          34.6673
CFD            Long          3743          34.9414

(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                         16 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   -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