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               13 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      110,464,597      3.77%       473,799     0.02%
securities
(2) Derivatives     2,135,370      0.07%       944,114     0.03%
(other than
options)
(3) Options and     2,235,020      0.08%     2,105,900     0.07%
agreements to
purchase/sell
Total             114,834,987      3.92%     3,523,813     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      4,781                9.7615
Purchase      12,110               9.7615
Purchase      10,856               9.5750
Purchase      10,254               9.7615
Purchase      10,138               9.7120
Purchase      8,718                9.7615
Purchase      8,094                9.7615
Purchase      7,000                9.5739
Purchase      6,882                9.7615
Purchase      12,183               9.7615
Purchase      5,117                9.7615
Purchase      11,187               9.5750
Purchase      4,456                9.7615
Purchase      3,894                9.6410
Purchase      3,408                9.7615
Purchase      3,354                9.7021
Purchase      2,266                9.6281
Purchase      2,100                9.7554
Purchase      1,578                9.6750
Purchase      705                  9.5750
Purchase      5,595                9.7615
Purchase      31,854               9.6867
Purchase      102,804              9.6861
Purchase      87,966               9.7636
Purchase      47,209               9.6293
Purchase      40,844               9.6750
Purchase      10,398               9.7615
Purchase      38,215               9.5883
Purchase      30,811               9.6066
Purchase      29,263               9.7615
Purchase      17,025               9.6867
Purchase      28,417               9.6376
Purchase      25,376               9.7615
Purchase      18,799               9.6552
Purchase      14,635               9.7615
Purchase      29,251               9.5979
Purchase      15,480               9.6867
Sale          105,674              9.7050
Sale          1,000                9.6059
Sale          1,300                9.8372
Sale          98,054               9.6882
Sale          87,797               9.6865
Sale          49,104               9.6363
Sale          5,827                9.7317
Sale          4,000                9.6000
Sale          39,686               9.6215
Sale          155                  9.7100
Sale          14,200               9.6270
Sale          5,900                9.6793
Sale          7,160                9.6277
Sale          150,096              9.5910

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          45087         9.586
CFD            Long          150096        9.5909
CFD            Long          37944         9.5912
CFD            Long          1000          9.6059
CFD            Long          3057          9.6165
CFD            Long          7160          9.6276
CFD            Long          49104         9.6362
CFD            Long          1202          9.6479
CFD            Long          87797         9.6865
CFD            Long          45194         9.7016
CFD            Long          89192         9.7057
CFD            Long          5737          9.7146
CFD            Long          33376         9.7202
CFD            Long          1300          9.8372
CFD            Short         7000          9.5738
CFD            Short         38215         9.5883
CFD            Short         29251         9.5978
CFD            Short         40844         9.675
CFD            Short         3354          9.7021
CFD            Short         2100          9.7554
CFD            Short         87966         9.7636

(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        150000             9.6       American    18/12/2009     0.98
Call Optio      Selling           75900              9.6       American    18/12/2009     0.15290182
Call Optio      Selling           150000            8.13254    European    12/10/2010     0.98

(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                         14 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   150,000                9.6000           AMER           18/12/2009
Option            Sold        -150,000               9.6000           AMER           18/12/2009
Option            Sold        -75,900                8.1325           EURO           12/10/2010
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