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               07 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      27,443,924      2.82%       773,855      0.08%
securities
(2) Derivatives       83,296      0.01%       268,830      0.03%
(other than
options)
(3) Options and        2,050      0.00%         1,000      0.00%
agreements to
purchase/sell
Total             27,529,270      2.83%      1,043,685     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      1,543                33.5064
Purchase      200                  34.5257
Purchase      184,863              33.7936
Purchase      200                  34.5257
Purchase      5,859                34.1105
Purchase      18,779               34.6500
Purchase      280                  33.7531
Purchase      17,000               32.9300
Purchase      213                  34.6450
Purchase      1,174                33.1200
Purchase      1,543                33.5000
Purchase      2,943                33.1200
Purchase      4,911                34.6450
Purchase      3,777                33.7092
Purchase      7,366                34.3982
Purchase      2,804                33.1200
Purchase      183,320              33.7961
Purchase      1,590                33.8792
Purchase      176,881              33.7267
Purchase      13,099               33.1200
Purchase      1,700                34.5447
Purchase      15,370               33.4933
Purchase      101,942              33.3952
Purchase      3,872                34.1589
Purchase      1,543                33.5000
Purchase      72,306               34.3370
Purchase      24,982               33.6795
Purchase      1,513                33.1263
Purchase      8,445                35.2200
Purchase      852                  34.3300
Purchase      450                  34.2522
Purchase      1,160                33.1200
Purchase      1,513                34.1000
Purchase      7,366                34.3982
Sale          101,942              33.3922
Sale          24,982               33.6795
Sale          567                  33.2545
Sale          330                  34.2344
Sale          100,000              33.0000
Sale          1,543                33.5000
Sale          8,445                35.2200
Sale          176,881              33.7267
Sale          72,306               34.3370
Sale          5,859                34.1040
Sale          3,777                33.7092
Sale          183,320              33.7961
Sale          1,513                33.1200
Sale          24,982               33.6795
Sale          15,370               33.4903
Sale          1,700                34.5447
Sale          200                  34.5257
Sale          1,543                33.5000
Sale          450                  34.2461
Sale          1,513                34.1000
Sale          1,543                33.5000
Sale          70                   34.3329
Sale          3,872                34.1524
Sale          7,366                34.3982
Sale          1,543                33.5000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1513          33.1262
CFD            Short         75132         33.2497
CFD            Short         1543          33.5063
CFD            Short         6371          33.6464
CFD            Short         20439         33.8517
CFD            Short         5859          34.1104
CFD            Short         72306         34.3369
CFD            Short         7366          34.3981
CFD            Short         200           34.5257
CFD            Short         1700          34.5447
CFD            Long          7286          33.131
CFD            Long          567           33.2544
CFD            Long          1543          33.5
CFD            Long          3777          33.7091
CFD            Long          8084          33.8139
CFD            Long          1513          34.1
CFD            Long          3872          34.1523
CFD            Long          330           34.2343
CFD            Long          450           34.246

(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             500              40.00     Euro          20/03/2008    2.15


(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                         08 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                   4,000.0000        EURO           20/03/2008
Option            Purchased   500                   3,400.0000        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                  3,400.0000        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