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               27 July 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     107,193,632     3.65%        853,982     0.03%
securities
(2) Derivatives    1,734,267     0.06%        442,859     0.02%
(other than
options)
(3) Options and    1,000,000     0.03%              0     0.00%
agreements to
purchase/sell
Total            109,927,899     3.75%      1,296,841     0.04%


(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      40,000               7.8003
Purchase      400                  7.8119
Purchase      3,573                7.8660
Purchase      26,495               7.8660
Purchase      31,601               7.8134
Purchase      3,573                7.8660
Purchase      1,905                7.8300
Purchase      32,511               7.8660
Purchase      1,677                7.9154
Purchase      1,456                7.8660
Purchase      49,907               7.8027
Purchase      61,809               7.8660
Purchase      574                  7.8660
Purchase      81,630               7.8660
Purchase      129,293              7.8116
Purchase      32,930               7.8214
Sale          915                  7.8660
Sale          23,870               7.8153
Sale          5,500                7.7764
Sale          907                  7.8313
Sale          471                  7.8313
Sale          3,573                7.8660
Sale          429                  7.8313
Sale          3,800                7.8018
Sale          5,359                7.8153
Sale          32,511               7.8660
Sale          285,063              7.9099
Sale          121,274              7.8153
Sale          68,000               7.8207
Sale          55,725               7.8021
Sale          44,366               7.8320
Sale          14,000               7.8100
Sale          35,381               7.8246
Sale          7,883                7.9150
Sale          32,485               7.8153
Sale          305,396              7.8081
Sale          16,378               7.8400
Sale          11,285               7.7923
Sale          10,620               7.8240
Sale          9,028                7.8185
Sale          42,309               7.8071



(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          5500          7.7764
CFD            Long          55725         7.802
CFD            Long          305396        7.808
CFD            Long          5359          7.8152
CFD            Long          10620         7.824
CFD            Long          44366         7.8319
CFD            Short         49907         7.8026
CFD            Short         129293        7.8116
CFD            Short         400           7.8119
CFD            Short         2218          7.9057


(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                         28 July 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