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 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      109,386,228     3.73%        765,170     0.03%
securities
(2) Derivatives    24,421,264     0.83%     22,958,249     0.78%
(other than
options)
(3) Options and     2,085,020     0.07%      1,955,900     0.07%
agreements to
purchase/sell
Total             135,892,512     4.63%     25,679,319     0.88%


(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      1,000                9.0316
Purchase      10,708               8.9711
Purchase      508,068              9.3200
Purchase      6,291                8.9441
Purchase      110                  9.3200
Purchase      6,200                8.9450
Purchase      3,600                9.1635
Purchase      3,570                8.9800
Purchase      3,275                9.2447
Purchase      16,766               9.1324
Purchase      1,050                8.5600
Purchase      10,362               9.1327
Purchase      777                  8.9600
Purchase      577                  9.1282
Purchase      577                  9.1282
Purchase      560                  9.0300
Purchase      550                  9.2147
Purchase      433                  9.3550
Purchase      300                  9.3147
Purchase      2,373                9.3200
Purchase      2,440                9.0848
Purchase      32,830               8.6360
Purchase      57,659               8.6345
Purchase      94,437               9.1254
Purchase      104,814              8.9526
Purchase      138,859              9.1384
Purchase      173,491              9.1744
Purchase      31,858               9.0211
Purchase      27,265               9.1840
Purchase      24,702               9.3190
Purchase      20,000               8.9812
Purchase      35,240               9.1398
Sale          508,068              9.3200
Sale          39,713               9.3429
Sale          2,200                9.0083
Sale          690                  8.6050
Sale          2,200                9.2325
Sale          67,221               8.6516
Sale          617                  9.0550
Sale          53,000               9.0000
Sale          6,266                8.9852
Sale          44,240               9.1382
Sale          19,437               9.1715
Sale          1,182                9.3010
Sale          1,229                9.3045
Sale          36,238               8.7078
Sale          34,733               8.9633
Sale          5,617                8.9685
Sale          30,993               9.2439
Sale          21,737               9.0692
Sale          827                  9.3200

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          24396         8.9631
CFD            Long          34733         8.9632
CFD            Long          5617          8.9684
CFD            Long          6266          8.9852
CFD            Long          2200          9.0082
CFD            Long          44240         9.1382
CFD            Long          1182          9.3009
CFD            Long          39713         9.3429
CFD            Short         9880          8.991
CFD            Short         560           9.03
CFD            Short         2440          9.0847
CFD            Short         810           9.0977
CFD            Short         10362         9.1327
CFD            Short         138859        9.1384
CFD            Short         35240         9.1397
CFD            Short         3600          9.1634
CFD            Short         173491        9.1743


(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 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            Sold        -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   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