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               05 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      109,221,635     3.72%      1,045,111     0.04%
securities
(2) Derivatives    24,602,983     0.84%     22,923,073     0.78%
(other than
options)
(3) Options and     1,985,020     0.07%      1,955,900     0.07%
agreements to
purchase/sell
Total             135,809,638     4.63%     25,924,084     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      1,400                8.5654
Purchase      2,559                8.6913
Purchase      22,381               8.6765
Purchase      1,878                8.7039
Purchase      1,494                8.7500
Purchase      16,487               8.7480
Purchase      35,947               8.6557
Purchase      900                  8.7697
Purchase      62,396               8.6570
Purchase      99,603               8.7298
Purchase      26,284               8.7500
Sale          6,222                8.5620
Sale          560                  8.5950
Sale          2,520                8.7320
Sale          521                  8.6507
Sale          4,451                8.7500
Sale          10,000               8.7500
Sale          89                   8.6600
Sale          16,087               8.7054
Sale          129,740              8.5987
Sale          18,471               8.6930
Sale          26,187               8.6617
Sale          26,284               8.7509
Sale          34,807               8.6571
Sale          55,520               8.6783
Sale          79,623               8.7268
Sale          117,692              8.7056
Sale          13,644               8.6952

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          6222          8.562
CFD            Long          560           8.595
CFD            Long          129740        8.5986
CFD            Long          26187         8.6617
CFD            Long          647           8.6787
CFD            Long          14733         8.69
CFD            Long          16087         8.7054
CFD            Long          117692        8.7055
CFD            Long          79623         8.7267
CFD            Long          2520          8.732
CFD            Long          105543        8.7775
CFD            Short         1400          8.5654
CFD            Short         35947         8.6556
CFD            Short         62396         8.657
CFD            Short         2559          8.6913
CFD            Short         99603         8.7298
CFD            Short         16487         8.7479
CFD            Short         3294          8.75

(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                         06 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            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