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               14 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       27,113,397     2.79%      998,864       0.10%
securities
(2) Derivatives        78,106     0.01%       210,322      0.02%
(other than
options)
(3) Options and         2,025     0.00%        1,500       0.00%
agreements to
purchase/sell
Total              27,193,528     2.80%     1,210,686      0.12%

(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      59,817               34.6003
Purchase      9,530                34.6835
Purchase      210                  34.9000
Purchase      37,000               34.6283
Purchase      73,002               34.7495
Purchase      6,546                34.4051
Purchase      385                  34.9370
Purchase      264                  34.9557
Purchase      106,576              34.7939
Purchase      7,000                34.8795
Purchase      49,966               34.8048
Purchase      520                  34.2200
Purchase      129,514              34.7519
Purchase      37,264               34.6306
Purchase      7,000                34.8795
Purchase      129,514              34.7519
Purchase      49,485               34.5850
Purchase      592                  34.4366
Sale          3,446                34.3860
Sale          59,817               34.6003
Sale          106,576              34.7939
Sale          2,200                34.5550
Sale          385                  34.9370
Sale          37,000               34.6283
Sale          6,546                34.3985
Sale          7,000                34.8795
Sale          1,898                34.9000
Sale          30,757               34.7900
Sale          129,514              34.7519
Sale          592                  34.4301
Sale          59,817               34.6003
Sale          49,485               34.5819
Sale          264                  34.9557
Sale          1,173                34.9000
Sale          2,300                34.5550
Sale          385                  34.9370
Sale          49,966               34.8017
Sale          9,530                34.6835
Sale          73,002               34.7495
Sale          210                  34.8934
Sale          23,068               34.4300

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         6546          34.405
CFD            Short         73002         34.7494
CFD            Short         43099         34.7955
CFD            Short         6867          34.8631
CFD            Short         7000          34.8795
CFD            Long          592           34.43
CFD            Long          11504         34.4786
CFD            Long          37981         34.6131
CFD            Long          9530          34.6834
CFD            Long          210           34.8933

(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                         15 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   -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