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               03 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     108,189,139     3.69%        933,262     0.03%
securities
(2) Derivatives    1,734,788     0.06%        572,223     0.02%
(other than
options)
(3) Options and    1,000,000     0.03%              0     0.00%
agreements to
purchase/sell
Total            110,923,927     3.78%      1,505,485     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      23,136               8.5759
Purchase      7,110                8.7259
Purchase      4,500                8.1964
Purchase      720                  8.5629
Purchase      1,000                8.1600
Purchase      279,392              8.0820
Purchase      13,570               8.1546
Purchase      3,785                8.6550
Purchase      15,502               8.5260
Purchase      15,943               8.3457
Purchase      11,355               8.6550
Purchase      30,000               8.3100
Purchase      62,513               8.5392
Purchase      68,000               8.3326
Purchase      2,465                8.3063
Purchase      400                  Transfer
Purchase      109,755              8.6346
Purchase      121,989              8.3784
Sale          2,500                8.6498
Sale          2,477                8.6136
Sale          5,922                8.1700
Sale          3,451                8.3516
Sale          1,500                8.6860
Sale          4,326                8.6075
Sale          1,297                8.2905
Sale          3,200                8.7500
Sale          6,352                8.6550
Sale          6,607                8.6075
Sale          7,379                8.3582
Sale          13,069               8.6953
Sale          14,560               8.6550
Sale          15,915               8.3250
Sale          21,226               8.6075
Sale          50,834               8.6953
Sale          61,331               8.6826
Sale          70,114               8.5367
Sale          884                  8.6550
Sale          108,000              8.6550
Sale          112,003              8.6365
Sale          12,622               8.3933


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          7379          8.3581
CFD            Long          12622         8.3933
CFD            Long          112003        8.6365
CFD            Long          2500          8.6497
CFD            Long          61331         8.6826
CFD            Long          1500          8.686
CFD            Short         4500          8.1964
CFD            Short         15943         8.3457
CFD            Short         31858         8.3764
CFD            Short         121989        8.3784
CFD            Short         21704         8.5269
CFD            Short         720           8.5629
CFD            Short         2477          8.6136
CFD            Short         109755        8.6345
CFD            Short         1106          8.6478


(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                         04 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.