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               28 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      110,617,519    3.77%        746,459     0.03%
securities
(2) Derivatives    24,396,229    0.83%     23,323,538     0.80%
(other than
options)
(3) Options and     1,985,020    0.07%      1,880,000     0.06%
agreements to
purchase/sell
Total             136,998,768    4.67%     25,949,997     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      924                  8.8900
Purchase      2,800                9.1207
Purchase      2,301                9.2800
Purchase      2,254                8.8900
Purchase      1,500                9.1819
Purchase      28,270               9.1828
Purchase      1,359                8.9600
Purchase      2,891                8.8900
Purchase      1,200                9.2514
Purchase      1,426                9.2800
Purchase      224,685              9.0760
Purchase      63,900               8.9600
Purchase      52,057               9.0582
Purchase      39,378               9.2800
Purchase      38,105               8.9978
Purchase      28,982               9.1696
Purchase      28,270               9.1828
Purchase      1,200                9.2015
Purchase      22,631               9.2532
Purchase      3,000                8.9600
Purchase      10,595               9.1815
Purchase      15,321               9.2570
Purchase      25,350               9.2800
Purchase      7,000                9.2800
Purchase      4,978                9.2800
Sale          32,814               9.0259
Sale          31,116               8.9945
Sale          28,270               9.1828
Sale          133,978              9.0999
Sale          45,189               9.0715
Sale          48,821               8.8488
Sale          15,393               9.2777
Sale          63,900               8.9600
Sale          28,270               9.18281
Sale          15,332               8.9338
Sale          42,625               9.0317
Sale          1,426                9.2750
Sale          609                  9.2800
Sale          648                  8.9359
Sale          900                  8.8352
Sale          14,267               9.0980
Sale          1,179                9.2800
Sale          9,747                8.9945
Sale          295                  9.2800
Sale          8,388                9.1349
Sale          6,417                8.9945
Sale          4,801                8.9338
Sale          3,567                9.2964
Sale          3,162                8.9338
Sale          609                  9.2800


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          900           8.8352
CFD            Long          48821         8.8488
CFD            Long          45189         9.0715
CFD            Long          133978        9.0999
CFD            Long          8388          9.1348
CFD            Long          15393         9.2777
CFD            Long          3567          9.2963
CFD            Short         52057         9.0581
CFD            Short         224685        9.076
CFD            Short         2800          9.1207
CFD            Short         1200          9.2015
CFD            Short         1200          9.2513
CFD            Short         22631         9.2532
CFD            Short         15321         9.2569
Swap           Long          22449936      14.476656 USD
Swap           Short         22449936      14.476656 USD


(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                         29 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   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   -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