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               18 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       107,762,208     3.67%        899,036     0.03%
securities
(2) Derivatives      1,866,432     0.06%        900,330     0.03%
(other than
options)
(3) Options and      1,000,000     0.03%      4,554,000     0.16%
agreements to
purchase/sell
Total              110,628,640     3.77%      6,353,366     0.22%


(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                 7.6000
Purchase       18,000                8.2159
Purchase       13,245                7.5459
Purchase       11,550                7.4200
Purchase       125                   7.5350
Purchase       10,000                8.1700
Purchase       10,000                7.9000
Purchase       10,000                8.3521
Purchase       25,000                7.5000
Purchase       8,627                 7.6748
Purchase       12,751                7.5033
Purchase       5,516                 7.4300
Purchase       4,717                 7.5800
Purchase       4,359                 7.4050
Purchase       4,072                 7.5800
Purchase       2,652                 7.6562
Purchase       1,627                 7.7052
Purchase       1,357                 7.5800
Purchase       1,092                 7.5800
Purchase       10,000                7.8998
Purchase       35,010                7.6311
Purchase       26,662                7.8500
Purchase       53,539                7.5800
Purchase       70,553                7.4982
Purchase       42,391                7.4800
Purchase       85,949                7.7640
Purchase       62,452                7.4482
Purchase       107,713               7.6172
Purchase       200,680               7.8422
Purchase       35,927                7.5779
Sale           1,900                 7.6450
Sale           2,600                 7.6710
Sale           1,600                 7.5710
Sale           62,452                7.5405
Sale           3,823                 7.6092
Sale           113,960               7.6119
Sale           1,352                 7.7267
Sale           4,072                 7.5800
Sale           250                   7.4750
Sale           70,418                7.5877
Sale           34,227                7.5351
Sale           26,662                7.8500
Sale           22,000                7.5800
Sale           28,926                7.7057
Sale           15,300                7.6430
Sale           30,968                7.6731
Sale           5,516                 7.4300
Sale           200,680               7.8422
Sale           5,516                 7.5800
Sale           10,653                7.7713
Sale           35,990                7.5163
Sale           50,000                7.7400
Sale           5,516                 7.6000
Sale           56,015                7.6327
Sale           11,550                7.4200
Sale           12,791                7.5250


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          34227         7.535
CFD            Long          62452         7.5404
CFD            Long          1733          7.55
CFD            Long          1925          7.58
CFD            Long          3823          7.6092
CFD            Long          113960        7.6118
CFD            Long          108908        7.6311
CFD            Long          56015         7.6326
CFD            Long          54571         7.6641
CFD            Long          2600          7.6709
CFD            Long          30968         7.6731
CFD            Long          28926         7.7057
CFD            Long          14890         7.7329
CFD            Long          24758         7.7411
CFD            Short         62452         7.4482
CFD            Short         70553         7.4982
CFD            Short         35927         7.5779
CFD            Short         107713        7.6172
CFD            Short         2652          7.6561
CFD            Short         85949         7.7639


(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                         19 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