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 September 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      111,664,279      3.81%    1,005,573      0.03%
securities
(2) Derivatives     2,225,230      0.08%      635,810      0.02%
(other than
options)
(3) Options and     1,025,000      0.03%    1,880,000      0.06%
agreements to
purchase/sell
Total             114,914,509      3.92%    3,521,383      0.12%


(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      29,872               9.3000
Purchase      40,141               9.3150
Purchase      8,000                9.6008
Purchase      1,183                9.3817
Purchase      2,450                9.6500
Purchase      33,210               9.6500
Purchase      900                  9.2850
Purchase      1,234                9.6500
Purchase      35,000               8.0000
Purchase      1,290                9.2350
Purchase      14,115               9.4451
Purchase      14,095               9.2643
Purchase      1,494                9.3000
Purchase      7,700                9.2564
Purchase      5,200                9.2600
Purchase      33,210               9.6500
Purchase      475,000              7.2000
Purchase      2,000                7.6000
Purchase      97                   9.6500
Purchase      2,000                8.6000
Purchase      428                  9.2050
Purchase      475,000              7.2000
Purchase      110,619              9.3715
Purchase      200                  9.2138
Purchase      50,000               9.2547
Purchase      185,558              9.6500
Sale          2,450                9.6500
Sale          2,360                9.2937
Sale          1,800                9.5800
Sale          832                  9.4150
Sale          1,546                9.2680
Sale          1,290                9.3000
Sale          1,349                9.4232
Sale          1,015                9.2451
Sale          834                  9.4200
Sale          105                  9.3000
Sale          1,234                9.6500
Sale          144                  9.6078
Sale          700                  9.2685
Sale          33,210               9.6500
Sale          2,000                7.6000
Sale          475,000              7.2000
Sale          234,005              9.3589
Sale          185,558              9.6500
Sale          50,793               9.6500
Sale          47,762               9.3377
Sale          46,357               9.3000
Sale          41,444               9.3427
Sale          36,559               9.4036
Sale          7,786                9.5877
Sale          33,210               9.6500
Sale          2,824                9.4103
Sale          19,458               9.3000
Sale          15,838               9.2885
Sale          2,000                8.6000
Sale          10,000               9.3000
Sale          97                   9.6500
Sale          5,172                9.4211
Sale          4,604                9.3000
Sale          4,177                9.4172
Sale          2,842                9.3000
Sale          35,000               8.0000


NB: The below transactions which were previously disclosed have been cancelled


Deal Date     Purchase/Sale     Number of Securities    Price per unit (GBP)
18/09/2009    Purchase          475,000                 7.2000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1015          9.2451
CFD            Long          700           9.2685
CFD            Long          13609         9.284
CFD            Long          15838         9.2885
CFD            Long          9908          9.2928
CFD            Long          976           9.3191
CFD            Long          47762         9.3377
CFD            Long          234005        9.3588
CFD            Long          8645          9.399
CFD            Long          1535          9.4007
CFD            Long          2975          9.5224
CFD            Long          1964          9.5606
CFD            Long          1800          9.58
CFD            Long          144           9.6078
CFD            Short         200           9.2138
CFD            Short         7700          9.2564
CFD            Short         14095         9.2642
CFD            Short         110619        9.3714
CFD            Short         8000          9.6008


(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)
Call Optio      Purchasing        33210              10        European     18/12/2009   -0.923
Call Optio      Selling           33210              10        European     18/12/2009   -0.923
Put Option      Purchasing        33210              10        European     18/12/2009   -1.258
Put Option      Selling           33210              10        European     18/12/2009   -1.258


(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                         22 September 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   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