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               01 February 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      27,071,336      2.77%     1,205,634      0.12%
securities
(2) Derivatives      262,665      0.03%       275,703      0.03%
(other than
options)
(3) Options and      712,175      0.07%       551,800      0.06%
agreements to
purchase/sell
Total             28,046,176      2.87%      2,033,137     0.21%


(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      633                  40.0300
Purchase      29,079               39.4728
Purchase      7,294                40.0300
Purchase      77,962               40.0300
Purchase      3,244                39.4735
Purchase      28,394               39.3621
Purchase      12,933               39.4727
Purchase      1,213                38.7688
Purchase      150,027              37.1800
Purchase      17,394               38.9012
Purchase      4,565                39.3621
Purchase      2,150                39.4465
Purchase      15,437               40.0300
Purchase      45,810               39.0872
Purchase      1,015                40.0300
Purchase      1,255                39.4746
Purchase      20,751               39.3621
Purchase      8,813                39.3621
Purchase      1,213                38.7688
Purchase      2,645                39.3621
Purchase      1,493                39.4742
Purchase      4,103                39.3621
Purchase      2,773                39.4299
Purchase      3,208                39.4735
Purchase      2,836                39.4737
Purchase      4,992                39.0150
Purchase      8,101                39.3621
Purchase      7,458                39.0500
Purchase      4,007                39.4735
Purchase      1,374                38.8440
Purchase      5,079                39.0500
Purchase      1,374                38.8444
Purchase      1,897                38.9386
Purchase      35,750               39.3465
Purchase      3,854                39.3621
Purchase      7,328                39.3621
Purchase      5,136                39.4725
Purchase      2,500                39.7000
Purchase      4,966                39.4732
Purchase      6,349                38.9386
Purchase      7,300                38.9768
Purchase      12,402               38.8553
Purchase      17,105               39.0500
Purchase      13,626               38.8536
Purchase      24,015               39.1136
Purchase      6,440                39.1476
Purchase      73,282               39.4727
Purchase      2,339                39.4740
Purchase      15,344               39.3621
Purchase      392                  38.8445
Purchase      2,818                38.9386
Purchase      341                  38.2750
Purchase      993                  40.0300
Purchase      1,000                38.8194
Sale          43,560               39.1853
Sale          17,394               38.9011
Sale          262                  39.4300
Sale          993                  40.0300
Sale          2,700                39.6704
Sale          24,490               39.2172
Sale          2,500                39.7000
Sale          2,150                39.4465
Sale          275                  39.0138
Sale          1,213                38.7688
Sale          35,352               40.0300
Sale          6,440                39.1476
Sale          93,928               39.2349
Sale          500                  39.3903
Sale          6,440                39.1141
Sale          133                  40.0224
Sale          1,374                38.8440
Sale          752                  38.9900
Sale          7,300                38.9768
Sale          38,647               39.2117
Sale          7,300                38.9768

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1213          38.7687
CFD            Short         1000          38.8194
CFD            Short         45810         39.0871
CFD            Short         24015         39.1136
CFD            Short         35750         39.3465
CFD            Short         2773          39.4298
CFD            Long          7300          38.9768
CFD            Long          38647         39.2117
CFD            Long          24490         39.2172
CFD            Long          93928         39.2349
CFD            Long          500           39.3903
CFD            Long          2700          39.6704
CFD            Long          133           40.0224

(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)
CALL            Purchase          100000             47          AMER          19/09/2008  13.125
CALL            Selling           50000              37          AMER          20/03/2008  .305

(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                         04 February 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   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   -140,000               34.0000          AMER           20/03/2008
Option            Purchased   -50,000                37.0000          AMER           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -360,000               36.0000          AMER           20/03/2008
Option            Purchased   150                    3,600.0000       EURO           20/03/2008
Option            Purchased   360,000                42.0000          AMER           20/03/2008
Option            Purchased   350                    4,000.0000       EURO           20/03/2008
Option            Purchased   375                    4,800.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   500                    3,400.0000       EURO           20/03/2008
Option            Purchased   100,000                47.0000          AMER           19/09/2008
Option            Purchased   250,000                42.0000          AMER           20/03/2008
Option            Purchased   150                    4,000.0000       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