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               27 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     107,313,540     3.66%        920,819     0.03%
securities
(2) Derivatives    1,571,264     0.05%        490,511     0.02%
(other than
options)
(3) Options and    1,500,000     0.05%      5,304,000     0.18%
agreements to
purchase/sell
Total            110,384,804     3.76%      6,715,330     0.23%


(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      3,600                8.0706
Purchase      3,780                6.7371
Purchase      10,000               8.3100
Purchase      3,156                7.9200
Purchase      3,471                8.0706
Purchase      136,954              7.9641
Purchase      40                   8.0710
Purchase      13,408               8.0706
Purchase      5,067                8.0706
Purchase      15,252               7.9200
Purchase      3,734                7.9200
Purchase      4,992                7.9300
Purchase      4,785                8.4641
Purchase      4,257                8.2357
Purchase      4,016                8.0706
Purchase      3,992                7.9200
Purchase      7,000                8.4311
Purchase      1,582                8.0706
Purchase      115                  8.2298
Purchase      97,920               7.8971
Purchase      88,793               8.2493
Purchase      65,499               7.9040
Purchase      65,226               8.3092
Purchase      60,062               8.0308
Purchase      11,200               8.2809
Purchase      1,400                7.8991
Purchase      7,468                7.9200
Purchase      40,298               7.9902
Purchase      27,452               7.9200
Purchase      21,945               8.1117
Purchase      2,838                7.9200
Purchase      17,542               8.0706
Sale          3,518                8.2644
Sale          2,838                7.9200
Sale          657                  7.9200
Sale          2,400                7.9200
Sale          4,992                7.9300
Sale          4,992                7.9200
Sale          10,000               8.7000
Sale          10,000               8.7650
Sale          10,000               8.7000
Sale          18,196               8.1192
Sale          22,093               8.2858
Sale          41,058               8.2422
Sale          47,559               7.9671
Sale          56,154               8.1024
Sale          70,452               8.0141
Sale          102,705              7.9244
Sale          7,014                8.1065

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Purchase/Sale     Number of Securities     Price per unit (GBP)
26/08/2009    Purchase          69,483                   8.3047


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          13379         7.9147
CFD            Long          2400          7.92
CFD            Long          22332         7.9289
CFD            Long          47559         7.967
CFD            Long          56154         8.1023
CFD            Long          3518          8.2643
CFD            Short         1400          7.899
CFD            Short         136954        7.964
CFD            Short         40298         7.9902
CFD            Short         40            8.071
CFD            Short         88793         8.2492
CFD            Short         11200         8.2808
CFD            Short         66865         8.2858

(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           4554000            8.548     Euro           25/08/2010   7.076

(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                         28 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   -250,000               800.0000         EURO           19/03/2010
Option            Purchased   -4,554,000             7.0760           EURO           25/08/2010
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