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               24 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      110,830,033      3.78%      812,106      0.03%
securities
(2) Derivatives     1,971,390      0.07%      867,510      0.03%
(other than
options)
(3) Options and     1,025,000      0.03%    1,880,000      0.06%
agreements to
purchase/sell
Total             113,826,423      3.88%    3,559,616      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      3,043                9.3321
Purchase      12,098               9.1500
Purchase      110                  9.1500
Purchase      743,790              9.1500
Purchase      14,578               9.1609
Purchase      5,290                9.5396
Purchase      5,192                9.1500
Purchase      5,000                9.1400
Purchase      4,019                9.1569
Purchase      24,541               9.1500
Purchase      11,187               9.1500
Purchase      27,324               9.1870
Purchase      3,000                9.2550
Purchase      43,051               9.3406
Purchase      2,596                9.4000
Purchase      57,520               9.2913
Purchase      3,043                9.3321
Purchase      46,000               9.2000
Purchase      172,425              9.1781
Purchase      106,880              9.4493
Purchase      1,868                9.1500
Purchase      57,520               9.2922
Purchase      56,807               9.3243
Purchase      200                  9.2565
Purchase      1,884                9.5524
Sale          4,244                9.4280
Sale          8,514                9.4280
Sale          7,677                9.4280
Sale          562                  9.4450
Sale          9,543                9.4280
Sale          751                  9.5375
Sale          8,213                9.4280
Sale          5,310                9.4280
Sale          800                  9.4280
Sale          4,465                9.4386
Sale          4,054                9.4280
Sale          1,335                9.1500
Sale          3,418                9.1712
Sale          14,378               9.1490
Sale          2,669                9.4280
Sale          1,884                9.3736
Sale          865                  9.4280
Sale          24,541               9.1510
Sale          743,790              9.1500
Sale          124,106              9.1500
Sale          123,775              9.4280
Sale          81,120               9.4784
Sale          76,356               9.1500
Sale          68,891               9.2382
Sale          57,520               9.2922
Sale          55,313               9.3310
Sale          48,911               9.1500
Sale          44,565               9.3616
Sale          43,029               9.4280
Sale          32,549               9.2583
Sale          13,285               9.1500
Sale          27,222               9.4933
Sale          11,368               9.1500
Sale          20,000               9.3325
Sale          18,812               9.4280
Sale          18,321               9.1715
Sale          17,747               9.4153
Sale          16,692               9.5932
Sale          16,563               9.1500
Sale          15,019               9.4280
Sale          15,000               9.2386
Sale          13,812               9.1500
Sale          12,765               9.3719
Sale          12,340               9.4280
Sale          11,669               9.5932
Sale          31,470               9.1500

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          14378         9.149
CFD            Long          68891         9.2381
CFD            Long          55313         9.3309
CFD            Long          63018         9.3686
CFD            Long          1884          9.3735
CFD            Long          28902         9.3952
CFD            Long          14474         9.396
CFD            Long          81120         9.4784
CFD            Short         14578         9.1608
CFD            Short         172425        9.1781
CFD            Short         816           9.195
CFD            Short         3000          9.255
CFD            Short         200           9.2565
CFD            Short         57520         9.2922
CFD            Short         1011          9.3141
CFD            Short         56807         9.3242
CFD            Short         1263          9.3566
CFD            Short         41693         9.4373
CFD            Short         106880        9.4493
CFD            Short         1884          9.5523

(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                         25 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   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