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               13 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       107,620,034    3.67%      953,162        0.03%
securities
(2) Derivatives      1,717,711    0.06%    1,012,239        0.03%
(other than
options)
(3) Options and      1,000,000    0.03%            0        0.00%
agreements to
purchase/sell
Total              110,337,745    3.76%    1,965,401        0.07%


(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      3,261                8.1000
Purchase      15,542               8.1858
Purchase      15,529               8.0492
Purchase      15,001               8.2029
Purchase      10,809               7.9420
Purchase      6,981                7.9812
Purchase      6,700                8.0537
Purchase      20,000               8.2150
Purchase      3,447                8.0200
Purchase      15,284               7.6450
Purchase      2,085                7.9582
Purchase      1,835                8.0150
Purchase      1,614                8.1811
Purchase      1,357                8.1000
Purchase      900                  8.0813
Purchase      728                  8.1000
Purchase      5,701                8.1000
Purchase      21,307               8.0288
Purchase      209,550              8.0793
Purchase      100,000              8.1805
Purchase      20,000               7.9115
Purchase      36,161               8.1127
Purchase      61,324               7.9582
Purchase      51,805               7.9083
Sale          1,497                7.9700
Sale          63,912               8.0366
Sale          2,085                7.7986
Sale          1,854                8.0388
Sale          75,000               8.1117
Sale          79,186               8.0420
Sale          56,349               8.0190
Sale          100,000              8.0189
Sale          732                  8.0520
Sale          1,823                7.9134
Sale          15,001               8.0322
Sale          5,701                8.1000
Sale          5,701                8.1000
Sale          5,875                8.1000
Sale          51,457               7.9694
Sale          8,013                8.0442
Sale          48,575               8.1356
Sale          333                  8.1061
Sale          219,964              8.0862
Sale          15,284               7.6450
Sale          25,000               7.9600
Sale          23,902               7.7728
Sale          58,009               8.0517

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1823          7.9134
CFD            Long          51457         7.9694
CFD            Long          100000        8.0189
CFD            Long          23648         8.0206
CFD            Long          15001         8.0321
CFD            Long          1854          8.0387
CFD            Long          58009         8.0517
CFD            Long          902           8.0725
CFD            Long          13025         8.0804
CFD            Long          219964        8.0862
CFD            Long          48575         8.1356
CFD            Short         10809         7.942
CFD            Short         21307         8.0288
CFD            Short         6700          8.0536
CFD            Short         209550        8.0793
CFD            Short         900           8.0813
CFD            Short         36161         8.1126
CFD            Short         100000        8.1804
CFD            Short         1614          8.181
CFD            Short         15001         8.2028

(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                         14 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   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