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               20 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     107,439,002     3.66%     1,042,193       0.04%
securities
(2) Derivatives    1,669,430     0.06%       725,464       0.02%
(other than
options)
(3) Options and    1,000,000     0.03%     4,554,000       0.16%
agreements to
purchase/sell
Total            110,108,432     3.75%     6,321,657       0.22%


(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      18,776               7.9404
Purchase      1,200                8.1260
Purchase      2,550                7.9512
Purchase      4,505                7.9171
Purchase      5,720                8.0709
Purchase      364                  8.1000
Purchase      13,365               8.0261
Purchase      19,342               8.0162
Purchase      99,828               8.0654
Purchase      88,057               8.0714
Purchase      9,987                8.1000
Sale          5,963                7.9600
Sale          100,720              8.0590
Sale          1,292                8.1000
Sale          1,872                8.1000
Sale          1,872                8.1000
Sale          2,491                8.1000
Sale          2,500                7.9650
Sale          85,000               8.1000
Sale          26,662               7.7150
Sale          6,000                8.1810
Sale          61,324               8.0794
Sale          56,899               7.9587
Sale          126,001              8.1000
Sale          19,316               8.0422
Sale          31,077               8.1040
Sale          22,414               7.9249
Sale          25,000               8.0400
Sale          26,121               8.1185
Sale          4,595                8.0299

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          22414         7.9248
CFD            Long          56899         7.9586
CFD            Long          2500          7.965
CFD            Long          4595          8.0299
CFD            Long          100720        8.0589
CFD            Long          26121         8.1185
CFD            Short         2550          7.9511
CFD            Short         145213        8.0519
CFD            Short         99828         8.0653
CFD            Short         5720          8.0708
CFD            Short         88057         8.0714
CFD            Short         1200          8.1259

(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                         21 August 2008
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