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               04 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     107,619,838     3.67%        982,939     0.03%
securities
(2) Derivatives    1,714,765     0.06%        406,393     0.01%
(other than
options)
(3) Options and    1,000,000     0.03%              0     0.00%
agreements to
purchase/sell
Total            110,334,603     3.76%      1,389,332     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      1,304                8.3814
Purchase      795                  8.4155
Purchase      821                  8.3980
Purchase      1,126                8.4155
Purchase      1,100                8.5485
Purchase      3,177                8.4700
Purchase      4,454                8.4700
Purchase      3,800                8.3500
Purchase      153,978              8.6490
Purchase      1,750                8.4013
Purchase      1,595                8.4155
Purchase      5,730                8.4155
Purchase      99                   8.3061
Purchase      10,573               8.6775
Purchase      3,111                8.3980
Purchase      143,188              8.3841
Purchase      29,311               8.4700
Purchase      46,894               8.3868
Purchase      3,177                8.4700
Purchase      3,498                8.3215
Purchase      3,498                8.3215
Purchase      50,000               8.4700
Purchase      47,000               8.4705
Purchase      36,209               8.4323
Purchase      1,456                8.4700
Sale          2,300                8.5194
Sale          2,299                8.4359
Sale          2,286                8.2973
Sale          549                  8.4700
Sale          1,350                8.9237
Sale          153,978              8.6490
Sale          142,188              8.3775
Sale          101,500              8.6640
Sale          81,342               8.4291
Sale          53,864               8.4874
Sale          213,050              8.5464
Sale          11,471               8.4382
Sale          33,332               8.4291
Sale          31,452               8.4382
Sale          30,000               8.6200
Sale          29,664               8.4291
Sale          29,644               8.3823
Sale          29,311               8.4700
Sale          21,706               8.3937
Sale          21,148               8.4623
Sale          19,376               8.8319
Sale          19,010               8.4200
Sale          3,932                8.3980
Sale          12,147               8.3823
Sale          3,502                8.2973
Sale          11,359               8.2973
Sale          10,811               8.3823
Sale          10,666               8.4700
Sale          9,551                8.6873
Sale          7,790                8.4200
Sale          6,933                8.4200
Sale          6,522                8.4623
Sale          4,846                8.8635
Sale          40,600               8.3387
Sale          4,255                8.4623
Sale          12,888               8.4382

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          142188        8.3775
CFD            Long          2299          8.4359
CFD            Long          53864         8.4874
CFD            Long          2300          8.5194
CFD            Long          213050        8.5464
CFD            Long          9551          8.6873
CFD            Long          1350          8.9236
CFD            Short         99            8.306
CFD            Short         1304          8.3814
CFD            Short         143188        8.384
CFD            Short         46894         8.3868
CFD            Short         1750          8.4012
CFD            Short         15247         8.47
CFD            Short         47000         8.4705
CFD            Short         15571         8.5082
CFD            Short         1100          8.5484
CFD            Short         10573         8.6775
CFD            Short         2041          8.6938

(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                         05 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.