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               16 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       26,960,611     2.77%     1,148,383      0.12%
securities
(2) Derivatives       224,625     0.02%      187,748       0.02%
(other than
options)
(3) Options and         2,025     0.00%        1,500       0.00%
agreements to
purchase/sell
Total              27,187,261     2.80%     1,337,631      0.14%

(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      1,200                33.1155
Purchase      76,056               32.7010
Purchase      1,400                32.9183
Purchase      477                  32.8200
Purchase      54,000               32.7377
Purchase      51,420               32.5557
Purchase      102                  32.7700
Purchase      24,964               32.8548
Purchase      10,798               33.1235
Purchase      440                  33.0136
Purchase      399                  33.2800
Purchase      322                  32.2700
Purchase      102                  32.7700
Purchase      3,473                33.2431
Purchase      54,686               32.7417
Purchase      1,400                32.9183
Purchase      17,418               33.0201
Purchase      20,208               32.4889
Purchase      2,949                32.2700
Purchase      477                  32.8500
Purchase      289                  33.0136
Purchase      57,000               33.4940
Purchase      336                  32.2700
Purchase      524                  33.0136
Purchase      6,850                33.0365
Purchase      227                  32.2761
Purchase      19,241               32.2700
Purchase      900                  33.0837
Purchase      76,056               32.7010
Purchase      293                  32.9165
Purchase      17,244               36.5062
Purchase      381                  33.0667
Purchase      2,071                32.9165
Purchase      11,007               32.9128
Purchase      1,704                33.0300
Purchase      1,053                32.9165
Purchase      36,535               32.9356
Purchase      89,240               32.9492
Purchase      1,200                33.1155
Purchase      7,681                32.5547
Purchase      305                  33.0300
Purchase      768                  32.9341
Purchase      435                  32.2700
Sale          2,175                32.2700
Sale          1,200                33.1155
Sale          1,955                32.2700
Sale          89,240               32.9492
Sale          3,473                33.2371
Sale          102                  32.7700
Sale          305                  33.0300
Sale          1,704                33.0300
Sale          7,681                32.5547
Sale          20,208               32.4889
Sale          381                  33.0667
Sale          58,644               33.4800
Sale          7,681                32.5547
Sale          6,850                33.0302
Sale          57,000               33.4940
Sale          24,964               32.8548
Sale          11,007               32.9066
Sale          227                  32.2700
Sale          20,208               32.4889
Sale          900                  33.0778
Sale          54,000               32.7377
Sale          111                  32.9732
Sale          477                  32.8200
Sale          17,244               36.5062
Sale          399                  33.2800
Sale          89,240               32.9492
Sale          17,418               33.0171
Sale          76,056               32.7010
Sale          102                  32.7659
Sale          477                  32.8500
Sale          10,798               33.1235
Sale          190                  33.8000
Sale          51,420               32.5527
Sale          768                  32.9341
Sale          102                  32.7700
Sale          1,400                32.9183
Sale          36,535               32.9356

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         227           32.2761
CFD            Short         1926          32.4127
CFD            Short         36186         32.4148
CFD            Short         11007         32.9128
CFD            Short         1400          32.9183
CFD            Short         13308         32.9593
CFD            Short         1704          33.03
CFD            Short         900           33.0837
CFD            Short         1200          33.1155
CFD            Short         10798         33.1234
CFD            Long          20208         32.4888
CFD            Long          7681          32.5546
CFD            Long          102           32.7658
CFD            Long          3658          32.8525
CFD            Long          24964         32.8548
CFD            Long          36535         32.9356
CFD            Long          585           32.9866
CFD            Long          6850          33.0301
CFD            Long          12872         33.0453
CFD            Long          3473          33.237
CFD            Long          888           33.2855

(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                         17 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