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               17 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       107,621,360     3.67%        824,533     0.03%
securities
(2) Derivatives      1,684,090     0.06%        892,498     0.03%
(other than
options)
(3) Options and      1,000,000     0.03%      4,554,000     0.16%
agreements to
purchase/sell
Total              110,305,450     3.76%      6,271,031     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      5,516                7.4200
Purchase      565                  7.5183
Purchase      1,258                7.8500
Purchase      1,950                7.6900
Purchase      2,007                7.7300
Purchase      2,900                8.1156
Purchase      2,900                7.9150
Purchase      2,900                7.9200
Purchase      380                  7.4169
Purchase      5,096                7.4200
Purchase      94,969               7.4868
Purchase      7,644                7.4200
Purchase      8,519                7.4200
Purchase      73,121               7.4619
Purchase      18,841               7.4200
Purchase      19,496               7.4381
Purchase      20,000               7.3900
Purchase      94,515               7.4193
Purchase      30,000               7.4700
Purchase      55,451               7.5804
Purchase      75,920               7.5490
Purchase      4,308                7.5053
Sale          816                  7.4200
Sale          1,040                7.4300
Sale          1,180                7.5139
Sale          1,400                7.5250
Sale          1,600                7.5250
Sale          1,652                7.4322
Sale          74,958               7.4102
Sale          12,444               7.4205
Sale          2,236                7.4839
Sale          65,670               7.4518
Sale          31,055               7.5413
Sale          20,000               8.0600
Sale          1,950                7.6150

NB: The below transactions which were previously disclosed have been cancelled
Deal Date   Purchase/Sale  Number of Securities  Price per unit (GBP)
17/08/2009  Purchase       2,900                 8.1156

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          74958         7.4102
CFD            Long          1652          7.4321
CFD            Long          17807         7.4342
CFD            Long          11281         7.4374
CFD            Long          65670         7.4517
CFD            Long          5238          7.459
CFD            Long          2236          7.4838
CFD            Long          8844          7.4878
CFD            Long          1180          7.5138
CFD            Long          31055         7.5413
CFD            Long          11012         7.6301
CFD            Short         380           7.4169
CFD            Short         94515         7.4192
CFD            Short         73121         7.4618
CFD            Short         3564          7.4845
CFD            Short         4308          7.5052
CFD            Short         565           7.5183
CFD            Short         75920         7.5489
CFD            Short         55451         7.5803
CFD            Short         15001         8.2028

NB: The below transactions which were previously disclosed have been cancelled
Deal Date    Long/Short   Number of Securities   Price per unit (GBP)
13/08/2009   Short        15,001                 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                         18 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