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               06 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     107,412,765     3.66%        900,765     0.03%
securities
(2) Derivatives    1,743,200     0.06%        947,539     0.03%
(other than
options)
(3) Options and    1,000,000     0.03%              0     0.00%
agreements to
purchase/sell
Total            110,155,965     3.76%      1,848,304     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      4,594                8.4403
Purchase      30,831               8.3727
Purchase      31,923               8.4963
Purchase      4,814                8.3811
Purchase      55,914               8.3294
Purchase      102,500              8.3217
Purchase      18,474               8.3204
Purchase      4,158                8.4717
Purchase      41,815               8.3300
Purchase      156,891              8.2191
Purchase      186,391              8.6550
Purchase      3,893                8.2964
Purchase      1,357                8.2000
Purchase      900                  8.5164
Purchase      8,542                8.2000
Purchase      728                  8.2000
Purchase      3,539                8.3543
Purchase      3,161                8.2300
Purchase      7,498                8.2000
Purchase      201,509              8.4180
Sale          5,569                8.3754
Sale          8,676                8.2000
Sale          8,424                8.3484
Sale          15,083               8.5446
Sale          600                  8.4811
Sale          8,535                8.3754
Sale          2,000                8.5815
Sale          1,000                8.5286
Sale          15,524               8.4283
Sale          425                  8.4811
Sale          16,627               8.4761
Sale          20,000               8.2978
Sale          27,676               8.3754
Sale          31,892               8.3940
Sale          1,100                8.5328
Sale          34,426               8.3360
Sale          78,401               8.4886
Sale          93,474               8.5013
Sale          122,929              8.4075
Sale          4,787                8.4283
Sale          192,955              8.4122
Sale          3,124                8.4283
Sale          3,539                8.3543
Sale          1,000                8.4937
Sale          32,562               8.4799

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          20000         8.2978
CFD            Long          122929        8.4074
CFD            Long          192955        8.4122
CFD            Long          78401         8.4885
CFD            Long          1312          8.4887
CFD            Long          1000          8.4937
CFD            Long          2196          8.4982
CFD            Long          93474         8.5013
CFD            Long          2743          8.5015
CFD            Long          2743          8.5073
CFD            Long          1000          8.5286
CFD            Long          1100          8.5328
CFD            Long          15083         8.5445
CFD            Short         16088         8.2
CFD            Short         156891        8.219
CFD            Short         3893          8.2963
CFD            Short         18474         8.3204
CFD            Short         41815         8.3299
CFD            Short         1884          8.3736
CFD            Short         201509        8.4179
CFD            Short         4594          8.4402
CFD            Short         8794          8.4523
CFD            Short         15183         8.4722
CFD            Short         31923         8.4962
CFD            Short         900           8.5164

(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                         07 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.