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               23 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      26,996,436      2.76%    1,290,595       0.13%
securities
(2) Derivatives      231,406      0.02%      262,990       0.03%
(other than
options)
(3) Options and        2,025      0.00%        1,800       0.00%
agreements to
purchase/sell
Total             27,229,867      2.79%     1,555,385      0.16%


(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      50,315               33.2241
Purchase      28,911               33.6000
Purchase      1,088                33.4438
Purchase      9,296                33.4811
Purchase      34,085               33.6000
Purchase      67,599               30.9851
Purchase      872                  33.7473
Purchase      3,900                32.6339
Purchase      56,745               31.8830
Purchase      217                  32.8000
Purchase      29,967               33.6000
Purchase      62,839               33.1687
Purchase      3,900                32.6339
Purchase      26,907               32.5928
Purchase      15,425               33.5800
Purchase      3,077                33.6000
Purchase      308                  33.0408
Sale          62,604               33.2473
Sale          9,296                33.4811
Sale          22,661               33.2564
Sale          459                  32.8103
Sale          66,004               31.0732
Sale          182                  33.6000
Sale          9,296                33.4811
Sale          223                  32.7938
Sale          2,015                32.9911
Sale          218                  33.5936
Sale          4,538                33.6000
Sale          3,900                32.6339
Sale          3,077                33.6000
Sale          2,745                32.8000
Sale          1,464                33.6000
Sale          28,453               33.6000
Sale          110,158              33.5755
Sale          15,442               33.6000
Sale          217                  32.8000
Sale          6,027                33.7853
Sale          28,339               31.2428

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         13989         32.4622
CFD            Short         26907         32.5928
CFD            Short         3900          32.6339
CFD            Short         7989          32.8459
CFD            Short         20951         33.1581
CFD            Short         62839         33.1686
CFD            Short         8530          33.3025
CFD            Short         21375         33.4301
CFD            Long          2015          32.9911
CFD            Long          62604         33.2472
CFD            Long          22661         33.2563
CFD            Long          9296          33.4811
CFD            Long          110158        33.5755
CFD            Long          218           33.5936

(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                         24 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   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
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