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               30 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      110,106,650    3.75%        877,534     0.03%
securities
(2) Derivatives    24,296,077    0.83%     23,063,657     0.79%
(other than
options)
(3) Options and     1,985,020    0.07%      1,955,900     0.07%
agreements to
purchase/sell
Total             136,387,747    4.65%     25,897,091     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      993                  9.3036
Purchase      5,895                9.2250
Purchase      2,316                9.225
Purchase      4,481                9.2250
Purchase      1,569                9.3497
Purchase      4,000                9.3188
Purchase      2,316                9.2250
Purchase      11,568               9.2250
Purchase      1,300                9.4931
Purchase      4,767                9.2250
Purchase      493                  9.2250
Purchase      410                  9.4747
Purchase      400                  9.3247
Purchase      160                  9.2800
Purchase      1,660                9.3630
Purchase      1,660                9.3630
Purchase      1,569                9.3497
Purchase      2,100                9.3808
Purchase      53,700               9.4468
Purchase      14,862               9.2260
Purchase      67,156               9.2313
Purchase      16,217               9.2250
Purchase      55,281               9.3163
Purchase      25,837               9.2250
Purchase      49,530               9.2100
Purchase      40,046               9.3537
Purchase      59,184               9.2193
Sale          66,111               9.2396
Sale          411                  9.2250
Sale          402                  9.2250
Sale          402                  9.2250
Sale          681                  9.2250
Sale          225                  9.3253
Sale          160                  9.2600
Sale          95,938               9.1900
Sale          2,316                9.225
Sale          370                  9.2250
Sale          39,776               9.2250
Sale          12,847               9.2250
Sale          11,999               9.2600
Sale          7,854                9.4115
Sale          5,895                9.2250
Sale          32,882               9.3322
Sale          49,530               9.2100
Sale          4,062                9.3860
Sale          681                  9.2250
Sale          2,316                9.2250
Sale          2,100                9.3515
Sale          45,506               9.1918
Sale          14,862               9.1441
Sale          1,282                9.3145
Sale          5,385                9.2609
Sale          34,808               9.2993


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          14862         9.144
CFD            Long          95938         9.19
CFD            Long          45506         9.1918
CFD            Long          66111         9.2396
CFD            Long          5385          9.2609
CFD            Long          2100          9.3514
CFD            Short         6185          9.1118
CFD            Short         986           9.1407
CFD            Short         59184         9.2192
CFD            Short         14862         9.2259
CFD            Short         67156         9.2312
CFD            Short         2100          9.3807
CFD            Short         5599          9.3874
CFD            Short         31842         9.3882
CFD            Short         3982          9.3949
CFD            Short         30831         9.4067
CFD            Short         39423         9.4082
CFD            Short         53700         9.4467
CFD            Short         1300          9.4931


(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            selling           75900              760       EURO            29/09/2009 0.0273

(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                         01 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