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               21 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     107,514,568     3.67%     1,058,208       0.04%
securities
(2) Derivatives    1,628,433     0.06%       740,573       0.03%
(other than
options)
(3) Options and    1,000,000     0.03%     4,554,000       0.16%
agreements to
purchase/sell
Total            110,143,001     3.76%     6,352,781       0.22%

(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      53,970               8.3368
Purchase      1,880                7.9850
Purchase      125                  8.3450
Purchase      17,609               8.1958
Purchase      6,736                8.3450
Purchase      1,511                8.4600
Purchase      3,143                8.3450
Purchase      9,313                8.2426
Purchase      1,366                8.3450
Purchase      34,146               8.3007
Purchase      900                  8.1818
Purchase      4,000                8.1000
Purchase      79,781               8.3665
Purchase      83,406               8.1000
Purchase      83,406               8.3450
Purchase      430                  8.1850
Purchase      96,143               8.3231
Purchase      109,415              8.2087
Purchase      1,366                8.1000
Sale          2,095                8.3450
Sale          3,143                8.3450
Sale          2,074                8.3450
Sale          1,880                8.1851
Sale          1,511                8.2650
Sale          1,366                8.1000
Sale          900                  8.0338
Sale          1,500                8.4432
Sale          4,000                8.1000
Sale          11,000               8.1300
Sale          599                  8.3550
Sale          12,519               8.2670
Sale          15,001               8.2514
Sale          20,808               8.4555
Sale          31,176               8.2879
Sale          45,481               8.4012
Sale          47,245               8.2762
Sale          50,000               8.3450
Sale          53,939               8.1908
Sale          63,416               8.1035
Sale          69,300               8.1666
Sale          83,406               8.1000
Sale          6,736                8.3450

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          900           8.0338
CFD            Long          7838          8.0426
CFD            Long          63416         8.1034
CFD            Long          69300         8.1665
CFD            Long          2094          8.205
CFD            Long          490           8.2425
CFD            Long          31176         8.2879
CFD            Long          45481         8.4012
CFD            Long          1500          8.4432
CFD            Long          20808         8.4555
CFD            Short         900           8.1817
CFD            Short         9313          8.2425
CFD            Short         24856         8.2911
CFD            Short         34146         8.3006
CFD            Short         96143         8.323
CFD            Short         53970         8.3367
CFD            Short         79781         8.3665

(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                         24 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   -4,554,000             6.7371           EURO           13/08/2010
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