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               01 October 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      109,869,467     3.75%      1,085,005     0.04%
securities
(2) Derivatives    24,468,529     0.83%     23,207,965     0.79%
(other than
options)
(3) Options and     1,985,020     0.07%      1,955,900     0.07%
agreements to
purchase/sell
Total             136,323,016     4.65%     26,248,870     0.89%


(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      10,000               8.9076
Purchase      5,363                9.1166
Purchase      7,664                9.4019
Purchase      1,548                9.2650
Purchase      2,726                8.8100
Purchase      2,988                8.7200
Purchase      3,619                8.9887
Purchase      3,637                8.7200
Purchase      9,600                8.9432
Purchase      20,000               8.7500
Purchase      235,339              8.8401
Purchase      30,663               9.3437
Purchase      45,952               8.9591
Purchase      77,219               8.9736
Sale          985                  8.8633
Sale          78,178               8.9976
Sale          2,726                8.7200
Sale          2,231                9.0507
Sale          2,000                8.7442
Sale          85,759               9.1313
Sale          10,431               9.4016
Sale          1,067                8.8633
Sale          257                  9.0835
Sale          63                   9.2343
Sale          122,479              8.8633
Sale          7,133                8.7200
Sale          5,780                8.8633
Sale          5,493                8.8633
Sale          5,488                8.8633
Sale          1,200                8.8641
Sale          11,045               8.8633
Sale          22,860               8.8633
Sale          44,567               8.9373
Sale          19,117               8.8633
Sale          18,503               8.7200
Sale          17,932               9.1900
Sale          15,674               8.8633
Sale          3,440                8.9158
Sale          12,798               8.7200
Sale          55,926               8.8633
Sale          10,980               8.8633
Sale          10,869               8.8633
Sale          10,431               9.4016
Sale          237,879              8.9744
Sale          4,669                8.7200
Sale          8,012                8.7200
Sale          50,000               8.9554
Sale          15,000               8.7200


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2000          8.7442
CFD            Long          1200          8.864
CFD            Long          3440          8.9158
CFD            Long          44567         8.9372
CFD            Long          237879        8.9744
CFD            Long          257           9.0835
CFD            Long          85759         9.1313
CFD            Long          4194          9.2238
CFD            Long          63            9.2342
CFD            Long          24422         9.4019
CFD            Short         6244          8.7385
CFD            Short         16598         8.7462
CFD            Short         235339        8.84
CFD            Short         10000         8.9076
CFD            Short         45952         8.959
CFD            Short         2782          9.0197
CFD            Short         6736          9.025
CFD            Short         424           9.035
CFD            Short         876           9.05
CFD            Short         670           9.0531
CFD            Short         10844         9.0548
CFD            Short         1025          9.0561
CFD            Short         2121          9.0656
CFD            Short         5363          9.1165
CFD            Short         30663         9.3437


(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                         02 October 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   500,020                782.0000         EURO           22/03/2010
Option            Purchased   460,000                782.0000         EURO           22/03/2010
Option            Purchased   -75,900                760.0000         EURO           29/09/2010
Option            Purchased   525,000                720.0000         EURO           19/03/2010
Option            Purchased   500,000                720.0000         EURO           18/12/2009
Option            Purchased   -300,000               960.0000         EURO           18/12/2009
Option            Purchased   -500,000               800.0000         EURO           18/12/2009
Option            Purchased   -1,080,000             800.0000         EURO           19/03/2010


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