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               02 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      109,359,649     3.73%        912,036     0.03%
securities
(2) Derivatives    24,399,361     0.83%     22,997,319     0.78%
(other than
options)
(3) Options and     1,985,020     0.07%      1,955,900     0.07%
agreements to
purchase/sell
Total             135,744,030     4.63%     25,865,255     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      10,560               8.3396
Purchase      10,000               8.3400
Purchase      20,000               8.3923
Purchase      5,000                8.6000
Purchase      17,710               9.0576
Purchase      15,709               8.5359
Purchase      23,504               8.5350
Purchase      3,663                8.5363
Purchase      20,000               8.4786
Purchase      1,970                8.3427
Purchase      4,854                8.5350
Purchase      4,945                8.5350
Purchase      5,500                8.3220
Purchase      5,316                8.5350
Purchase      5,316                8.5350
Purchase      11,733               8.4800
Purchase      186,424              8.4946
Purchase      92,201               8.5350
Purchase      1,559                9.0400
Purchase      88,326               8.4064
Purchase      690                  9.0400
Purchase      100,605              8.3800
Purchase      115,000              8.3610
Purchase      1,500                8.4144
Purchase      48,203               8.3802
Purchase      687                  9.0350
Purchase      47,942               8.4124
Purchase      175                  8.5000
Purchase      203,665              9.2250
Purchase      1,190                9.0400
Sale          4,993                8.5166
Sale          3,431                8.3915
Sale          4,641                8.3915
Sale          4,620                8.3842
Sale          3,906                8.3915
Sale          2,426                8.3915
Sale          3,525                8.4885
Sale          3,294                8.9809
Sale          3,171                8.9134
Sale          3,051                8.3915
Sale          1,400                8.6021
Sale          2,336                8.3915
Sale          2,321                8.4885
Sale          2,169                8.9809
Sale          1,006                8.3915
Sale          17,954               8.5350
Sale          203,665              9.2250
Sale          203,665              9.2250
Sale          101,437              8.3796
Sale          89,510               8.4456
Sale          79,110               8.5437
Sale          65,759               8.5359
Sale          59,855               8.2308
Sale          29,000               8.4800
Sale          26,442               8.5359
Sale          25,000               8.5350
Sale          22,163               8.5350
Sale          8,400                8.5207
Sale          18,758               8.3915
Sale          5,231                8.3915
Sale          15,836               8.5208
Sale          15,190               8.3915
Sale          11,900               9.0043
Sale          11,250               8.4885
Sale          10,515               8.9809
Sale          267,366              8.4734
Sale          9,533                8.3915
Sale          7,344                8.3915
Sale          6,746                8.3915
Sale          6,457                8.3915
Sale          5,240                8.3915
Sale          21,180               8.2978

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          59855         8.2307
CFD            Long          101437        8.3796
CFD            Long          267366        8.4733
CFD            Long          6244          8.5199
CFD            Long          15836         8.5207
CFD            Long          36508         8.535
CFD            Long          20622         8.5743
CFD            Long          1400          8.602
CFD            Short         10560         8.3396
CFD            Short         3021          8.3723
CFD            Short         100605        8.3799
CFD            Short         17091         8.383
CFD            Short         20000         8.3923
CFD            Short         1500          8.4144
CFD            Short         186424        8.4945
CFD            Short         838           8.5075
CFD            Short         15709         8.5358
CFD            Short         3663          8.5362

(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        500000             9.6       American      18/12/2009   -0.37
Call Optio      Purchasing        500000             11        American      18/12/2009   -0.12
Call Optio      Selling           500000             9.6       American      18/12/2009   -0.37
Call Optio      Selling           500000             11        American      18/12/2009   -0.12

(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                         05 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