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               19 March 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      27,782,298     2.84%     1,349,888       0.14%
securities
(2) Derivatives      301,860     0.03%       104,294       0.01%
(other than
options)
(3) Options and    1,222,725     0.13%     1,063,250       0.11%
agreements to
purchase/sell
Total             29,306,883     3.00%     2,517,432       0.26%


(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      264                  37.7826
Purchase      700                  38.2263
Purchase      1,666                37.4986
Purchase      10,387               37.1600
Purchase      13,454               37.3838
Purchase      5,385                37.7826
Purchase      41,669               38.0463
Purchase      3,100                38.1993
Purchase      71,946               37.8800
Purchase      29,665               37.8800
Purchase      5,791                37.3998
Purchase      50                   Transfer
Purchase      500                  38.1174
Purchase      10,402               37.8800
Purchase      15                   37.7600
Purcha        51,693               37.8373
Purchase      13,406               38.1631
Sale          143,000              37.1600
Sale          87,500               37.6000
Sale          7,055                38.1201
Sale          2,166                37.1600
Sale          10,469               37.6061
Sale          5,411                37.1544
Sale          809                  37.9855
Sale          15                   37.7600
Sale          1,180                37.1600
Sale          71,939               37.8800
Sale          15,600               37.4352
Sale          500                  38.0337
Sale          10,961               37.6797
Sale          29,665               37.8800
Sale          7,103                38.0643
Sale          10,402               37.8800
Sale          10,387               37.1600
Sale          2,676                38.0531
Sale          340                  37.1452
Sale          71,946               37.8800
Sale          153,924              37.4996
Sale          17,328               37.1600


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         5791          37.3998
CFD            Short         1666          37.4986
CFD            Short         500           38.1174
CFD            Short         13406         38.163
CFD            Short         3100          38.1992
CFD            Short         700           38.2263
CFD            Long          340           37.1452
CFD            Long          5411          37.1544
CFD            Long          153924        37.4995
CFD            Long          10469         37.606
CFD            Long          10961         37.6796
CFD            Long          809           37.9854
CFD            Long          500           38.0337
CFD            Long          7103          38.0643
CFD            Long          7055          38.1201



(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            Purchasing        250                3800      Euro            20/03/2008


(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                         20 March 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   150                    3,600.0000       EURO           20/03/2008
Option            Purchased   -360,000               36.0000          AMER           20/03/2008
Option            Purchased   -150,000               38.0000          AMER           20/06/2008
Option            Purchased   -140,000               34.0000          AMER           20/03/2008
Option            Purchased   -50,000                37.0000          AMER           20/03/2008
Option            Purchased   -500                   3,800.0000       EURO           20/03/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -350                   4,000.0000       EURO           20/03/2008
Option            Purchased   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -250                   3,400.0000       EURO           20/06/2008
Option            Purchased   -360,                  000 45.0000      AMER           20/03/2008
Option            Purchased   -100                   4,000.0000       EURO           20/06/2008
Option            Purchased   360,000                42.0000          AMER           20/03/2008
Option            Purchased   200                    3,200.0000       EURO           19/09/2008
Option            Purchased   250                    3,800.0000       EURO           20/03/2008
Option            Purchased   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   375                    4,800.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   500                    3,400.0000       EURO           20/03/2008
Option            Purchased   600                    4,000.0000       EURO           20/03/2008
Option            Purchased   100,000                47.0000          AMER           19/09/2008
Option            Purchased   150,000                32.0000          AMER           20/06/2008
Option            Purchased   250,000                42.0000          AMER           20/03/2008
Option            Purchased   360,000                40.0000          AMER           20/03/2008
Option            Purchased   -250                   3,400.0000       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