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               28 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      26,188,911      2.68%     1,084,027      0.11%
securities
(2) Derivatives       83,884      0.01%       268,234      0.03%
(other than
options)
(3) Options and      612,175      0.06%       501,800      0.05%
agreements to
purchase/sell
Total             26,884,970      2.75%      1,854,061     0.19%


(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      7,277                34.6500
Purchase      37,087               35.3809
Purchase      4,114                35.0112
Purchase      2,200                31.3479
Purchase      42,911               35.0915
Purchase      10,721               35.6005
Purchase      188                  34.6500
Purchase      65,000               33.3925
Purchase      35,352               35.1200
Purchase      1,932                35.0037
Purchase      747                  35.1200
Purchase      216                  35.1267
Purchase      7,308                35.4000
Purchase      433                  35.1863
Purchase      66,000               36.1000
Purchase      90,000               35.5000
Purchase      365                  34.6500
Sale          75,000               36.2000
Sale          8,075                34.0466
Sale          92,271               35.4400
Sale          8,231                33.0284
Sale          504                  35.4855
Sale          3,077                35.4000
Sale          2,760                35.1200
Sale          165                  35.1816
Sale          8,416                35.7136
Sale          32,572               35.2208
Sale          9,167                35.7234
Sale          416                  36.3000
Sale          64,663               35.8707
Sale          1,439                35.2604

NB: The below transactions which were previously disclosed have been cancelled
Deal Date       Purchase/Sale    Number of Securities   Price per unit (GBP)
25/01/2008      Sale             85                     35.3762
25/01/2008      Sale             3,800                  34.8908
25/01/2008      Sale             4,616                  35.1862

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         2200          31.3479
CFD            Short         65000         33.3925
CFD            Short         4114          35.0112
CFD            Short         42911         35.0915
CFD            Short         216           35.1266
CFD            Short         433           35.1863
CFD            Short         37087         35.3809
CFD            Short         10721         35.6004
CFD            Long          8231          33.0283
CFD            Long          32572         35.2208
CFD            Long          504           35.4854
CFD            Long          8416          35.7136
CFD            Long          9167          35.7233
CFD            Long          64663         35.8707
CFD            Long          416           36.3

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Long/Short     Number of Securities    Price per unit (GBP)
25/01/2008    Long           85                      35.3762
25/01/2008    Long           4,616                   35.1862
25/01/2008    Long           3,800                   34.8908

(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 Option     Purchase           360000            36        American       20/03/2008   3.20
Call Option     Sale               360000            42        American       20/03/2008   11.50
Call Option     Sale               250000            42        American       20/03/2008   13.75
Put  Option     Purchase           150               36        European       20/03/2008 3.15


(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                         29 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   360,000                42.0000          AMER           20/03/2008
Option            Purchased   250,000                42.0000          AMER           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   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   150                    3,600.0000       EURO           20/03/2008
Option            Purchased   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -140,000               34.0000          AMER           20/03/2008
Option            Purchased   -360,000               36.0000          AMER           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