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               11 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      27,064,143      2.79%    1,109,510       0.11%
securities
(2) Derivatives       151,752     0.02%      207,271       0.02%
(other than
options)
(3) Options and         2,025     0.00%        1,500       0.00%
agreements to
purchase/sell
Total              27,217,920     2.80%     1,318,281      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      23,639               34.4800
Purchase      11,205               33.7069
Purchase      27                   33.9100
Purchase      26,273               33.5368
Purchase      349                  32.8900
Purchase      1,516                32.8764
Purchase      26,273               33.5368
Purchase      212                  34.4800
Purchase      59,760               33.6957
Purchase      40,000               33.7261
Purchase      1,800                34.1317
Purchase      13,552               33.4738
Purchase      1,800                34.1317
Purchase      2,211                33.2159
Purchase      115,783              33.0160
Purchase      319                  33.2161
Purchase      202,342              33.4874
Purchase      40,000               33.7261
Purchase      179,172              33.2574
Purchase      2,348                34.4800
Purchase      43,500               33.8700
Purchase      87,232               34.0910
Purchase      2,211                33.2159
Purchase      11,489               32.8535
Purchase      3,390                33.6944
Sale          11,205               33.7069
Sale          2,211                33.2118
Sale          26,273               33.5368
Sale          212                  34.4734
Sale          59,760               33.6926
Sale          115,783              33.0160
Sale          3,379                32.8642
Sale          13,552               33.4707
Sale          2,211                33.2159
Sale          179,172              33.2574
Sale          1,000                33.0135
Sale          202,342              33.4874
Sale          87,232               34.0910
Sale          40,000               33.7261
Sale          179,172              33.2574
Sale          2,211                33.2159
Sale          27                   33.9041
Sale          1,000                33.0135
Sale          11,489               32.8535
Sale          1,800                34.1317
Sale          11,489               32.8535
Sale          4,905                34.4800
Sale          49,211               32.5500
Sale          200,000              32.6000
Sale          87,232               34.0910
Sale          1,516                32.8701
Sale          3,390                33.6880

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1516          32.8763
CFD            Short         11711         33.3503
CFD            Short         11205         33.7069
CFD            Short         1800          34.1317
CFD            Short         1841          34.2589
CFD            Long          11489         32.8534
CFD            Long          1000          33.0135
CFD            Long          115783        33.0159
CFD            Long          16639         33.1378
CFD            Long          4891          33.1611
CFD            Long          2211          33.2117
CFD            Long          3390          33.688
CFD            Long          27            33.904
CFD            Long          43121         33.9066
CFD            Long          212           34.4734

(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)
CALL            Purchase          350                40        EURO          20/03/2008  1.26
PUT             Selling           500                32        EURO          20/03/2008  2.57
(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                         14 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                   3,600.0000 EURO 20/06/2008
Option            Purchased   -500                   3,400.0000 EURO 20/03/2008
Option            Purchased   -500                   3,200.0000 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