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               31 December 2007

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      27,285,093      2.81%      625,669       0.06%
securities
(2) Derivatives      184,398      0.02%       175,213      0.02%
(other than
options)
(3) Options and        1,550      0.00%          500       0.00%
agreements to
purchase/sell
Total             27,471,041      2.83%      801,382       0.08%


(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      7,522                35.5000
Purchase      16,692               35.6292
Purchase      4,296                35.6297
Purchase      37,000               35.5000
Purchase      176                  35.7400
Purchase      9,696                35.5000
Purchase      425                  35.5000
Purchase      1,930                35.5213
Purchase      37,176               35.5011
Purchase      3,146                35.6875
Purchase      6,226                35.5951
Purchase      12,300               35.6327
Purchase      1                    35.9300
Purchase      4,757                35.5000
Purchase      6,226                35.5951
Purchase      4,392                35.6193
Purchase      216                  35.5000
Purchase      26,710               35.4430
Purchase      150                  35.5000
Sale          1                    35.9300
Sale          4,296                35.6297
Sale          37,000               35.5000
Sale          16,692               35.6292
Sale          4,392                35.6161
Sale          26,710               35.4430
Sale          176                  35.7400
Sale          3,146                35.6875
Sale          12,300               35.6327
Sale          16,692               35.6292
Sale          6,226                35.5951
Sale          1,930                35.5181
Sale          590                  35.5000
Sale          3,146                35.6875

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1200          35.4531
CFD            Short         4296          35.6297
CFD            Short         730           35.6333
CFD            Long          1684          35.5932
CFD            Long          2708          35.6303
CFD            Long          12300         35.6326
CFD            Long          3146          35.6875

(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                         01 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   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                   3,600.0000       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