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               19 August 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       107,673,921     3.67%        933,687     0.03%
securities
(2) Derivatives      1,796,010     0.06%        722,725     0.02%
(other than
options)
(3) Options and      1,000,000     0.03%      4,554,000     0.16%
agreements to
purchase/sell
Total              110,469,931     3.77%      6,210,412     0.21%


(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       27,646                7.5068
Purchase       3,173                 7.4575
Purchase       4,641                 7.5683
Purchase       15,300                7.5562
Purchase       2,362                 7.5400
Purchase       2,352                 7.5800
Purchase       23,041                7.5212
Purchase       3,072                 7.4600
Purchase       25,636                7.5116
Purchase       13,440                7.6039
Purchase       1,650                 7.7150
Purchase       30,428                7.7159
Purchase       31,892                7.5423
Purchase       1,040                 7.5150
Purchase       55,723                7.7150
Purchase       114,448               7.6538
Purchase       1,040                 7.5150
Purchase       952                   7.4600
Purchase       134,004               7.7150
Sale           1,600                 7.4476
Sale           2,596                 7.4789
Sale           2,900                 7.5250
Sale           2,900                 7.5050
Sale           2,900                 7.5510
Sale           2,352                 7.5800
Sale           2,979                 7.5014
Sale           3,705                 7.7150
Sale           595                   7.7150
Sale           8,296                 7.5232
Sale           160,422               7.6084
Sale           15,551                7.7150
Sale           16,016                7.5696
Sale           23,050                7.5501
Sale           28,662                7.5461
Sale           30,708                7.6887
Sale           45,000                7.7150
Sale           127,612               7.5800
Sale           129,134               7.4620
Sale           7,800                 7.4950

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1600          7.4476
CFD            Long          129134        7.4619
CFD            Long          2596          7.4788
CFD            Long          2979          7.5013
CFD            Long          503           7.5273
CFD            Long          23050         7.55
CFD            Long          160422        7.6084
CFD            Long          30708         7.6887
CFD            Short         23089         7.4864
CFD            Short         2362          7.5399
CFD            Short         31892         7.5422
CFD            Short         4641          7.5682
CFD            Short         114448        7.6538
CFD            Short         30428         7.7159

(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                         20 August 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   -4,554,000             6.7371           EURO           13/08/2010
Option            Purchased   1,000,000              720.0000         EURO           18/09/2009

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