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               07 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     107,509,972     3.67%       772,940       0.03%
securities
(2) Derivatives    1,654,230     0.06%     1,023,539       0.03%
(other than
options)
(3) Options and    1,000,000     0.03%             0       0.00%
agreements to
purchase/sell
Total            110,164,202     3.76%     1,796,479       0.06%


(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      3,050                8.2000
Purchase      10,000               7.8187
Purchase      259,294              7.9767
Purchase      8,800                7.9249
Purchase      7,376                8.1150
Purchase      7,376                8.2000
Purchase      6,429                8.1150
Purchase      6,429                8.2000
Purchase      10,006               8.1150
Purchase      3,793                8.1150
Purchase      9,822                7.9556
Purchase      3,050                8.1150
Purchase      3,049                8.1150
Purchase      2,750                7.7907
Purchase      2,060                8.0210
Purchase      1,200                7.9934
Purchase      958                  8.1005
Purchase      500                  8.1763
Purchase      471                  8.1150
Purchase      4,879                8.1150
Purchase      80,556               8.1150
Purchase      19,499               7.9264
Purchase      54,356               7.9170
Purchase      33,807               8.1150
Purchase      89,421               8.0002
Purchase      19,566               7.8437
Purchase      20,102               7.8754
Purchase      20,205               7.9707
Purchase      62,000               7.8448
Purchase      51,000               8.1493
Purchase      75,000               7.8405
Sale          3,050                8.2000
Sale          2,893                7.9862
Sale          66,346               7.8420
Sale          1,600                7.8237
Sale          35,000               8.0702
Sale          96,622               8.0081
Sale          471                  8.1150
Sale          164,573              7.9347
Sale          300                  8.1188
Sale          2,060                7.8548
Sale          7,376                8.2000
Sale          16,755               7.8826
Sale          15,771               7.9834
Sale          13,729               8.0350
Sale          11,585               8.0136
Sale          10,397               7.9634
Sale          30,000               8.1399
Sale          3,793                8.1150
Sale          33,718               7.9634
Sale          3,148                7.8850
Sale          33,807               8.1150
Sale          6,785                7.9634
Sale          6,429                8.2000
Sale          34,356               7.9436
Sale          43,641               8.1150
Sale          7,467                8.1150
Sale          100                  8.1590

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1600          7.8237
CFD            Long          66346         7.8419
CFD            Long          11522         7.9187
CFD            Long          164573        7.9346
CFD            Long          34356         7.9435
CFD            Long          2893          7.9862
CFD            Long          96622         8.008
CFD            Long          11585         8.0135
CFD            Long          300           8.1187
CFD            Long          100           8.159
CFD            Short         5492          7.8032
CFD            Short         10000         7.8186
CFD            Short         7362          7.8389
CFD            Short         75000         7.8405
CFD            Short         54356         7.9169
CFD            Short         19499         7.9263
CFD            Short         10539         7.9417
CFD            Short         9822          7.9556
CFD            Short         259294        7.9767
CFD            Short         1200          7.9934
CFD            Short         89421         8.0002
CFD            Short         958           8.1004
CFD            Short         4765          8.1206
CFD            Short         6659          8.1328
CFD            Short         500           8.1763

(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                         10 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