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               21 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       26,798,726     2.74%     1,310,097      0.13%
securities
(2) Derivatives       281,895     0.03%       215,318      0.02%
(other than
options)
(3) Options and         2,025     0.00%        1,800       0.00%
agreements to
purchase/sell
Total              27,082,646     2.77%     1,527,215      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      400                  32.9054
Purchase      11,077               23.3803
Purchase      8,325                32.7947
Purchase      400                  32.9054
Purchase      880                  31.8042
Purchase      1,480                34.2182
Purchase      1,784                33.2800
Purchase      1,868                70.1906 CHF
Purchase      316,234              32.6037
Purchase      3,157                70.1906 CHF
Purchase      7,400                33.0128
Purchase      700                  32.3510
Purchase      60,000               33.1153
Purchase      21,000               33.3723
Purchase      960                  32.5100
Purchase      21,000               32.0300
Purchase      135,03               31.8063
Purchase      9,153                31.7900
Purchase      337                  33.0000
Purchase      58,153               33.6296
Purchase      40,139               33.8355
Purchase      83,273               33.5777
Purchase      595                  32.8800
Purchase      337                  33.0000
Purchase      1,073                31.7900
Purchase      135,033              32.1252
Purchase      2,935                32.8763
Purchase      700                  33.2202
Purchase      960                  32.5162
Purchase      26,056               32.2234
Purchase      8,000                33.1200
Purchase      59,083               33.0016
Purchase      28,688               32.4301
Purchase      700                  32.3510
Sale          59,083               32.9953
Sale          3,429                33.0636
Sale          301,888              32.8505
Sale          400                  32.9054
Sale          700                  33.2202
Sale          135,033              31.8007
Sale          337                  33.0000
Sale          5,092                33.0636
Sale          11,477               33.0636
Sale          337                  33.0000
Sale          21,000               32.0300
Sale          71                   32.4500
Sale          21,000               33.3723
Sale          8,325                32.7947
Sale          1,480                34.2121
Sale          700                  33.2202
Sale          58,153               33.6265
Sale          700                  32.3510
Sale          7,400                33.0128
Sale          960                  32.5100
Sale          1,784                33.2800
Sale          83,273               33.5747
Sale          40,139               33.8355
Sale          960                  32.5100
Sale          135,033              32.1196
Sale          60,000               33.1090
Sale          11,077               23.3803
Sale          7,200                33.3700
Sale          2,935                32.8763
Sale          880                  31.7985
Sale          8,000                33.1200
Sale          10,800               33.3600
Sale          150                  32.9975
Sale          960                  32.5100
Sale          151                  32.8800
Sale          28,688               32.4301
Sale          29,325               33.2084

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         880           31.8041
CFD            Short         135033        31.8062
CFD            Short         700           32.351
CFD            Short         28688         32.43
CFD            Short         960           32.5161
CFD            Short         400           32.9054
CFD            Short         7400          33.0128
CFD            Short         13044         33.0193
CFD            Short         60000         33.1152
CFD            Short         9016          33.4242
CFD            Short         54873         33.5404
CFD            Short         19384         33.7546
CFD            Long          135033        32.1196
CFD            Long          960           32.51
CFD            Long          59083         32.9953
CFD            Long          8000          33.12
CFD            Long          700           33.2202
CFD            Long          4099          33.3046
CFD            Long          54054         33.6509
CFD            Long          40139         33.8355
CFD            Long          1480          34.212

(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                         22 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                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008

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