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               25 August 2009

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     107,246,005     3.66%     1,107,106       0.04%
securities
(2) Derivatives    1,612,884     0.05%       580,522       0.02%
(other than
options)
(3) Options and    1,500,000     0.05%       600,000       0.02%
agreements to
purchase/sell
Total            110,358,889     3.76%     2,287,628       0.08%

(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      11,031               8.4855
Purchase      591                  8.3891
Purchase      800                  8.4614
Purchase      948                  8.6100
Purchase      1,504                8.6100
Purchase      1,760                8.5100
Purchase      4,481                8.6200
Purchase      5,800                8.3817
Purchase      9,530                8.3719
Purchase      115                  8.5100
Purchase      10,000               8.6100
Purchase      12,102               8.6221
Purchase      14,136               8.6228
Purchase      20,000               8.5200
Purchase      62,623               8.6007
Purchase      23,000               8.5482
Purchase      30,319               8.5425
Purchase      56,746               8.5875
Purchase      32,572               8.5681
Sale          4,481                8.6200
Sale          89,765               8.4399
Sale          1,328                8.4164
Sale          55,000               8.4500
Sale          47,514               8.5865
Sale          1,760                8.3632
Sale          2,084                8.3728
Sale          10,121               8.3738
Sale          34,265               8.6312
Sale          16,182               8.5379
Sale          8,336                8.6090
Sale          32,000               8.5755
Sale          133,360              8.6100
Sale          13,504               8.5230
Sale          4,481                8.6100

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2084          8.3728
CFD            Long          89765         8.4398
CFD            Long          47514         8.5864
CFD            Long          8336          8.6089
CFD            Long          34265         8.6312
CFD            Short         46544         8.3692
CFD            Short         800           8.4614
CFD            Short         32572         8.568
CFD            Short         62623         8.6006
CFD            Short         12102         8.6221
CFD            Short         14136         8.6227

(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 Option     Writing           100000             800       EURO          19/03/2010    172
Put Option      Writing           500000             720       EURO          18/12/2009    57
Put Option      Writing           500000             800       EURO          18/12/2009    90

(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                         26 August 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   -100,000               800.0000         EURO           19/03/2010
Option            Purchased   1,000,000              720.0000         EURO           18/09/2009
Option            Purchased   500,000                720.0000         EURO           18/12/2009
Option            Purchased   -500,000               800.0000         EURO           18/12/2009

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