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 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       106,890,825    3.64%      682,665        0.02%
securities
(2) Derivatives      1,650,000    0.06%      896,223        0.03%
(other than
options)
(3) Options and      1,000,000    0.03%            0        0.00%
agreements to
purchase/sell
Total              109,540,825    3.73%    1,578,888        0.05%


(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      5,701                7.4350
Purchase      23,954               7.4350
Purchase      10,846               7.9192
Purchase      211                  7.7400
Purchase      10,000               7.7800
Purchase      10,000               7.7800
Purchase      10,000               7.7800
Purchase      29,403               7.5864
Purchase      5,701                7.4350
Purchase      12,000               7.8482
Purchase      5,356                7.4350
Purchase      2,786                7.4350
Purchase      2,576                7.7500
Purchase      2,503                7.9412
Purchase      1,500                7.8033
Purchase      400                  7.4334
Purchase      7,240                7.5268
Purchase      64,834               7.8003
Purchase      402,469              7.4350
Purchase      128,515              7.4952
Purchase      108,000              7.4461
Purchase      84,745               7.7243
Purchase      52,559               7.7195
Purchase      36,364               7.6568
Purchase      43,475               7.5475
Sale          5,356                7.4350
Sale          33,413               7.7079
Sale          1,500                7.5070
Sale          338,171              7.7925
Sale          2,503                7.9338
Sale          135,640              7.7716
Sale          2,523                7.5062
Sale          128,851              7.4550
Sale          20,000               7.7766
Sale          5,701                7.4350
Sale          17,927               7.4959
Sale          16,982               7.9050
Sale          402,469              7.4350
Sale          31,950               7.6017
Sale          57,168               7.4350
Sale          7,442                7.7298
Sale          8,663                7.4350
Sale          47,245               7.4667
Sale          45,928               7.5730
Sale          3,274                7.8101

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD           Long           2523          7.5061
CFD           Long           1500          7.507
CFD           Long           45928         7.573
CFD           Long           135640        7.7716
CFD           Long           3274          7.81
CFD           Long           2503          7.9338
CFD           Short          400           7.4334
CFD           Short          128515        7.4951
CFD           Short          43475         7.5474
CFD           Short          52559         7.7195
CFD           Short          211           7.74
CFD           Short          64834         7.8003
CFD           Short          1500          7.8033
CFD           Short          10846         7.9191
CFD           Short          4230          7.9287
CFD           Short          2503          7.9411

(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                         12 August 2009
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   1,000,000              720.0000         EURO           18/09/2009

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