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               12 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       107,677,369    3.67%      772,165        0.03%
securities
(2) Derivatives      1,724,250    0.06%    1,117,644        0.04%
(other than
options)
(3) Options and      1,000,000    0.03%            0        0.00%
agreements to
purchase/sell
Total              110,401,619    3.76%    1,889,809        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      8,013                7.5337
Purchase      400,328              7.4435
Purchase      18,519               7.3936
Purchase      240                  7.1711
Purchase      14,996               7.6450
Purchase      13,187               7.5067
Purchase      25,000               7.8074
Purchase      8,400                7.2823
Purchase      25,000               7.4800
Purchase      6,647                7.2249
Purchase      6,296                7.5010
Purchase      5,102                7.4410
Purchase      4,600                7.4244
Purchase      2,265                7.2374
Purchase      791                  7.4800
Purchase      10,000               7.7784
Purchase      58,384               7.4075
Purchase      30,629               7.6226
Purchase      35,385               7.2358
Purchase      200,680              7.4350
Purchase      140,082              7.5369
Purchase      50,000               7.4046
Sale          250                  7.3000
Sale          2,071                7.2200
Sale          2,265                7.4706
Sale          134,844              7.5415
Sale          99,750               7.5125
Sale          63,696               7.5561
Sale          24,739               7.4800
Sale          50,000               7.6366
Sale          29,850               7.6450
Sale          12,270               7.6821
Sale          45,000               7.6450
Sale          13,187               7.5067
Sale          44,500               7.2231
Sale          42,318               7.5041
Sale          54,328               7.3899

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2071          7.22
CFD            Long          102085        7.2358
CFD            Long          64630         7.4575
CFD            Long          43958         7.4647
CFD            Long          99750         7.5124
CFD            Long          134844        7.5415
CFD            Long          50000         7.6365
CFD            Long          7364          7.6932
CFD            Long          1841          7.7019
CFD            Short         240           7.171
CFD            Short         20607         7.2145
CFD            Short         7228          7.2178
CFD            Short         50000         7.4046
CFD            Short         4600          7.4244
CFD            Short         400328        7.4435
CFD            Short         140082        7.5369
CFD            Short         30629         7.6226

(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                         13 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