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               23 September 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      111,354,764      3.80%      870,570      0.03%
securities
(2) Derivatives     2,054,036      0.07%      790,456      0.03%
(other than
options)
(3) Options and     1,025,000      0.03%    1,880,000      0.06%
agreements to
purchase/sell
Total             114,433,800      3.90%    3,541,026      0.12%


(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      24,390               9.4050
Purchase      400                  9.5050
Purchase      1,000                9.4150
Purchase      1,766                9.4000
Purchase      9,162                9.3877
Purchase      10,000               9.5150
Purchase      10,000               9.4900
Purchase      12,765               9.4946
Purchase      15,000               9.2386
Purchase      16,679               9.5054
Purchase      22,346               9.5553
Purchase      26,000               9.6058
Purchase      26,250               9.6078
Purchase      27,873               9.4645
Purchase      55,466               9.5175
Purchase      96,910               9.4050
Purchase      74,750               9.3813
Purchase      70,488               9.6204
Sale          22,926               9.5872
Sale          138,137              9.4643
Sale          117,047              9.5650
Sale          32,963               9.4035
Sale          2,056                9.4000
Sale          3,000                9.5122
Sale          5,373                9.5749
Sale          6,716                9.4000
Sale          9,000                9.4035
Sale          61,869               9.5103
Sale          33,460               9.6350
Sale          205,683              9.6036
Sale          24,390               9.4050
Sale          28,806               9.5742
Sale          51,309               9.5337
Sale          17,133               9.4724
Sale          20,488               9.5291
Sale          22,000               9.5500
Sale          105                  9.4200
Sale          50,000               9.6195
Sale          96,910               9.4050

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          9000          9.4034
CFD            Long          138137        9.4642
CFD            Long          17133         9.4723
CFD            Long          3000          9.5121
CFD            Long          7637          9.5561
CFD            Long          6028          9.5689
CFD            Long          28806         9.5742
CFD            Long          85456         9.6078
CFD            Short         74750         9.3813
CFD            Short         9162          9.3876
CFD            Short         16679         9.5053
CFD            Short         3629          9.5364
CFD            Short         4527          9.537
CFD            Short         22346         9.5552
CFD            Short         10304         9.5687
CFD            Short         2859          9.5699
CFD            Short         43396         9.57

(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)
Call Optio      Purchasing        33210              10        European    18/12/2009    -0.923
Put Option      Purchasing        33210              10        European    18/12/2009    -1.258
Put Option      Selling           33210              10        European    18/12/2009    -1.258


(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                         24 September 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   525,000                720.0000         EURO           19/03/2010
Option            Purchased   500,000                720.0000         EURO           18/12/2009
Option            Purchased   -300,000               960.0000         EURO           18/12/2009
Option            Purchased   -500,000               800.0000         EURO           18/12/2009
Option            Purchased   -1,080,000             800.0000         EURO           19/03/2010

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