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               12 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      110,335,729      3.76%       478,001     0.02%
securities
(2) Derivatives     2,036,182      0.07%     1,193,442     0.04%
(other than
options)
(3) Options and     2,085,020      0.07%     1,880,000     0.06%
agreements to
purchase/sell
Total             114,456,931      3.90%     3,551,443     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      2,940                 9.5980
Purchase      255,457               9.7046
Purchase      15,379                9.7150
Purchase      14,557                9.7046
Purchase      13,901                9.7046
Purchase      11,487                9.7046
Purchase      11,224                9.7046
Purchase      8,982                 9.7384
Purchase      5,108                 9.6684
Purchase      16,732                9.6800
Purchase      2,946                 9.6508
Purchase      16,719                9.7046
Purchase      2,521                 9.5500
Purchase      2,351                 9.5500
Purchase      2,240                 9.7046
Purchase      2,053                 9.7046
Purchase      1,600                 9.7079
Purchase      1,300                 9.7015
Purchase      1,275                 9.6800
Purchase      1,261                 9.6480
Purchase      763                   9.5500
Purchase      4,000                 9.6675
Purchase      37,797                9.7046
Purchase      211,846               9.7229
Purchase      199,828               9.7429
Purchase      104,012               9.7046
Purchase      76,527                9.7051
Purchase      56,590                9.6922
Purchase      48,363                9.7046
Purchase      38,000                9.6332
Purchase      16,732                9.6850
Purchase      33,367                9.7046
Purchase      17,120                9.6971
Purchase      26,669                9.7046
Purchase      18,504                9.5981
Purchase      19,500                9.6800
Sale          48,750                9.6972
Sale          16,732                9.6850
Sale          959                   9.7160
Sale          105                   9.6500
Sale          1,355                 9.7524
Sale          3,354                 9.6785
Sale          19,500                9.6800
Sale          8,442                 9.6917
Sale          42,317                9.5768
Sale          14,619                9.6790
Sale          27,756                9.7734
Sale          37,039                9.6987
Sale          30,000                9.6500
Sale          70,456                9.7035

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          7460          9.5379
CFD            Long          42317         9.5768
CFD            Long          3354          9.6785
CFD            Long          14619         9.6789
CFD            Long          11531         9.6831
CFD            Long          5315          9.6839
CFD            Long          8442          9.6916
CFD            Long          70456         9.7035
CFD            Long          959           9.716
CFD            Long          19517         9.7519
CFD            Long          30343         9.7553
CFD            Short         2940          9.598
CFD            Short         39128         9.6877
CFD            Short         29475         9.6931
CFD            Short         17120         9.6971
CFD            Short         1300          9.7014
CFD            Short         76527         9.705
CFD            Short         1600          9.7079
CFD            Short         15379         9.7149
CFD            Short         199828        9.7428

(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                         13 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   525,000                720.0000         EURO           19/03/2010
Option            Purchased   500,000                720.0000         EURO           18/12/2009
Option            Purchased   100,000                920.0000         EURO           19/03/2010
Option            Sold        -300,000               960.0000         EURO           18/12/2009
Option            Sold        -500,000               800.0000         EURO           18/12/2009
Option            Sold        -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