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               10 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       107,302,868    3.66%      843,140        0.03%
securities
(2) Derivatives      1,710,644    0.06%      839,162        0.03%
(other than
options)
(3) Options and      1,000,000    0.03%            0        0.00%
agreements to
purchase/sell
Total              110,013,512    3.75%    1,682,302        0.06%


(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      14,445               7.9262
Purchase      500                  7.9663
Purchase      524                  8.1150
Purchase      593                  7.8600
Purchase      900                  7.8600
Purchase      900                  7.8600
Purchase      1,200                7.8043
Purchase      1,476                8.0700
Purchase      2,700                7.9031
Purchase      6,162                7.8588
Purchase      7,442                7.8675
Purchase      13,423               7.9122
Purchase      16,833               7.9087
Purchase      22,729               7.8513
Purchase      127,612              8.1150
Purchase      27,000               7.8600
Purchase      87,134               7.9209
Purchase      27,188               7.8833
Purchase      30,000               7.9500
Purchase      21,833               7.8657
Purchase      72,659               7.8744
Sale          4,733                8.1150
Sale          147,866              7.9046
Sale          127,612              8.1150
Sale          85,625               7.9349
Sale          1,000                7.8837
Sale          71,889               7.8663
Sale          35,266               7.8889
Sale          15,441               7.8799
Sale          4,262                7.8664
Sale          10,000               7.8572
Sale          450                  7.7911
Sale          215,913              7.8737
Sale          17,333               7.9234
Sale          20,000               7.7848
Sale          3,167                7.9000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          10000         7.8572
CFD            Long          71889         7.8662
CFD            Long          215913        7.8736
CFD            Long          1000          7.8837
CFD            Long          147866        7.9046
CFD            Short         1200          7.8042
CFD            Short         21833         7.8657
CFD            Short         72659         7.8743
CFD            Short         2176          7.8778
CFD            Short         2700          7.903
CFD            Short         13423         7.9122
CFD            Short         87134         7.9209
CFD            Short         4252          7.9437
CFD            Short         500           7.9663

(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                         11 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