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               05 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     108,168,018     3.69%        894,357     0.03%
securities
(2) Derivatives    1,641,090     0.06%        889,786     0.03%
(other than
options)
(3) Options and    1,000,000     0.03%              0     0.00%
agreements to
purchase/sell
Total            110,809,108     3.78%      1,784,143     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      300                  8.4477
Purchase      5,000                8.5528
Purchase      20,000               8.5000
Purchase      20,000               8.5513
Purchase      18,600               8.5555
Purchase      17,419               8.5159
Purchase      1,018                8.4713
Purchase      2,477                8.4464
Purchase      26,000               8.3100
Purchase      2,614                8.3100
Purchase      125,387              8.5827
Purchase      7,570                8.3100
Purchase      791                  8.3100
Purchase      6,588                8.5856
Purchase      4,242                8.4313
Purchase      174                  8.4400
Purchase      59,129               8.4765
Purchase      276,348              8.3392
Purchase      151,507              8.3100
Purchase      1,340                8.4509
Purchase      1,336                8.4776
Purchase      136,264              8.4812
Purchase      20,000               8.5499
Purchase      81,551               8.4494
Purchase      16,892               8.6971
Purchase      53,010               8.5000
Purchase      47,536               8.3100
Purchase      42,318               8.3726
Purchase      1,894                8.8050
Purchase      1,700                8.3101
Sale          1,771                8.6288
Sale          1,813                8.3538
Sale          1,825                8.6557
Sale          127,929              8.5773
Sale          4,810                8.3100
Sale          5,000                8.7048
Sale          5,032                8.4925
Sale          6,390                8.3687
Sale          7,755                8.3100
Sale          13,096               8.5116
Sale          17,419               8.5159
Sale          20,956               8.5542
Sale          28,490               8.4396
Sale          35,909               8.5116
Sale          47,536               8.3100
Sale          57,058               8.5002
Sale          114,740              8.6788
Sale          14,714               8.5116

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1813          8.3537
CFD            Long          6390          8.3687
CFD            Long          28490         8.4396
CFD            Long          2477          8.4464
CFD            Long          57058         8.5001
CFD            Long          127929        8.5772
CFD            Long          1825          8.6556
CFD            Long          114740        8.6788
CFD            Long          5000          8.7048
CFD            Short         20854         8.31
CFD            Short         276348        8.3391
CFD            Short         12653         8.3544
CFD            Short         101318        8.3698
CFD            Short         22738         8.3705
CFD            Short         7787          8.3744
CFD            Short         55727         8.3798
CFD            Short         300           8.4476
CFD            Short         1340          8.4509
CFD            Short         1018          8.4712
CFD            Short         59129         8.4764
CFD            Short         136264        8.4812
CFD            Short         71736         8.5102
CFD            Short         3297          8.5208
CFD            Short         5000          8.5528
CFD            Short         125387        8.5826
CFD            Short         1894          8.805

(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                         06 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.