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               14 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       107,391,630    3.66%      907,058        0.03%
securities
(2) Derivatives      1,697,905    0.06%      808,159        0.03%
(other than
options)
(3) Options and      1,000,000    0.03%    4,554,000        0.16%
agreements to
purchase/sell
Total              110,089,535    3.75%    6,269,217        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      18,600               7.8293
Purchase      430                  7.7700
Purchase      1,186                8.2652
Purchase      1,233                8.1066
Purchase      5,158                8.2004
Purchase      8,400                7.9709
Purchase      11,200               7.8029
Purchase      12,000               8.2600
Purchase      12,886               7.9587
Purchase      18,000               8.2950
Purchase      20,719               8.3323
Purchase      175,722              7.9903
Purchase      112,157              7.9337
Purchase      27,012               8.2109
Purchase      65,671               7.8500
Purchase      21,492               8.0129
Sale          11,992               7.8500
Sale          175,820              7.9856
Sale          1,233                7.9913
Sale          2,074                8.2843
Sale          2,473                8.1044
Sale          6,059                7.9579
Sale          16,005               7.8500
Sale          30,314               7.8500
Sale          30,000               8.2200
Sale          125                  7.8500
Sale          24,142               8.0902
Sale          271,706              8.2042
Sale          19,040               8.2322
Sale          20,579               8.2765
Sale          22,806               7.8468
Sale          59,798               8.0563

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          22806         7.8468
CFD            Long          6059          7.9578
CFD            Long          175820        7.9855
CFD            Long          2473          8.1043
CFD            Long          271706        8.2041
CFD            Long          19040         8.2322
CFD            Long          63245         8.3323
CFD            Short         18600         7.8292
CFD            Short         598           7.8427
CFD            Short         112157        7.9337
CFD            Short         8400          7.9709
CFD            Short         175722        7.9902
CFD            Short         5158          8.2003
CFD            Short         7672          8.2878
CFD            Short         48568         8.3468

(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                         17 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