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               07 February 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      27,490,998      2.81%     1,082,396      0.11%
securities
(2) Derivatives       98,361      0.01%       359,459      0.04%
(other than
options)
(3) Options and      712,175      0.07%       551,800      0.06%
agreements to
purchase/sell
Total             28,301,534      2.89%     1,993,655      0.20%


(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      673                  38.5600
Purchase      8,639                38.0188
Purchase      289                  38.4475
Purchase      6,901                38.4475
Purchase      196                  38.2072
Purchase      250                  38.5100
Purchase      66,359               38.0554
Purchase      913                  38.2000
Purchase      8,905                38.6307
Purchase      2,822                38.4475
Purchase      29,367               38.6307
Purchase      489                  38.4475
Purchase      673                  38.4475
Purchase      55,774               38.0874
Purchase      1,437                38.4475
Purchase      1,591                38.4475
Purchase      1,000                37.9852
Purchase      359                  38.4475
Purchase      356                  38.4475
Purchase      291                  38.4475
Purchase      3,937                38.2551
Purchase      189                  38.5100
Purchase      1,058                38.5100
Sale          2,115                38.2000
Sale          7,329                38.3357
Sale          1,000                38.3708
Sale          276                  38.7300
Sale          6,498                38.2000
Sale          62,400               38.1582
Sale          25,883               38.3672
Sale          488                  38.2000
Sale          24,617               38.2000
Sale          2,179                38.2800

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1000          37.9852
CFD            Short         8639          38.0187
CFD            Short         66359         38.0553
CFD            Short         55774         38.0874
CFD            Short         196           38.2072
CFD            Short         3937          38.255
CFD            Long          3617          38.1379
CFD            Long          62400         38.1581
CFD            Long          459           38.1704
CFD            Long          2179          38.28
CFD            Long          25883         38.3671
CFD            Long          1000          38.3708
CFD            Long          3712          38.5282

(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                         08 February 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   250                    3,200.0000       EURO          20/03/2008
Option            Purchased   -140,000               34.0000          AMER          20/03/2008
Option            Purchased   -50,000                37.0000          AMER          20/03/2008
Option            Purchased   -500                   3,400.0000       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   -300                   3,000.0000       EURO          20/03/2008
Option            Purchased   -360,000               36.0000          AMER          20/03/2008
Option            Purchased   150                    4,000.0000       EURO          20/06/2008
Option            Purchased   360,000                42.0000          AMER          20/03/2008
Option            Purchased   350                    4,000.0000       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   100,000                47.0000          AMER          19/09/2008
Option            Purchased   250,000                42.0000          AMER          20/03/2008
Option            Purchased   150                    3,600.0000       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