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               30 January 2008

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      26,305,666      2.69%     1,072,992      0.11%
securities
(2) Derivatives      102,849      0.01%       274,208      0.03%
(other than
options)
(3) Options and      612,175      0.06%       501,800      0.05%
agreements to
purchase/sell
Total             27,020,690      2.76%      1,849,000     0.19%


(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      351                  49.4900 EUR
Purchase      1,092                49.4900 EUR
Purchase      3,717                37.1278
Purchase      59,554               37.5287
Purchase      954                  37.5292
Purchase      312                  36.7346
Purchase      167                  49.4900 EUR
Purchase      316                  49.4900 EUR
Purchase      829                  49.4900 EUR
Purchase      7,999                37.5292
Purchase      804                  36.7500
Purchase      13,752               37.5292
Purchase      2,438                37.5292
Purchase      2,737                36.9700
Purchase      585                  36.7346
Purchase      9,538                37.3428
Purchase      433                  49.4900 EUR
Purchase      15,380               37.5292
Purchase      2,181                49.4900 EUR
Purchase      365                  49.4900 EUR
Purchase      162                  49.4900 EUR
Purchase      5,344                37.5292
Purchase      2,951                37.4096
Purchase      911                  37.3411
Purchase      337                  49.4900 EUR
Purchase      686                  37.5292
Purchase      324                  49.4900 EUR
Purchase      8,382                37.5292
Purchase      656                  49.4900 EUR
Purchase      321                  49.4900 EUR
Purchase      3,796                37.3430
Purchase      731                  49.4900 EUR
Purchase      150                  49.4900 EUR
Purchase      2,370                37.3420
Purchase      220                  36.7500
Purchase      1,402                49.4900 EUR
Purchase      325                  49.4900 EUR
Purchase      338                  49.4900 EUR
Purchase      924                  37.3533
Purchase      163                  36.7500
Purchase      163                  49.4900 EUR
Purchase      299                  36.7346
Purchase      21,424               37.3427
Purchase      166                  49.4900 EUR
Purchase      407                  49.4900 EUR
Purchase      338                  49.4900 EUR
Purchase      3,792                37.5292
Purchase      668                  49.4900 EUR
Purchase      403                  37.1000
Purchase      248                  49.4900 EUR
Purchase      54,030               37.3428
Purchase      1,087                37.3414
Purchase      490                  49.4900 EUR
Purchase      694                  49.4900 EUR
Purchase      286                  49.4900 EUR
Purchase      402                  49.4900 EUR
Purchase      3,653                37.3426
Purchase      942                  49.4900 EUR
Purchase      201                  36.9500
Purchase      351                  37.3056
Purchase      692                  49.4900 EUR
Purchase      1,059                49.4900 EUR
Purchase      516                  49.4900 EUR
Purchase      2,951                37.4096
Purchase      2,072                37.3418
Purchase      367                  49.4900 EUR
Purchase      156                  49.4900 EUR
Purchase      756                  49.4900 EUR
Purchase      51,341               37.4925
Purchase      166                  49.4900 EUR
Purchase      646                  36.7500
Purchase      2,418                36.7346
Purchase      2,168                37.6209
Purchase      364                  49.4900 EUR
Purchase      823                  49.4900 EUR
Purchase      600                  49.4900 EUR
Purchase      1,212                49.4900 EUR
Purchase      420                  49.4900 EUR
Purchase      25,330               37.2302
Purchase      316                  49.4900 EUR
Purchase      595                  49.4900 EUR
Purchase      3,075                37.1800
Purchase      201                  37.1900
Purchase      400                  36.9631
Purchase      628                  36.7346
Purchase      166                  49.4900 EUR
Purchase      166                  49.4900 EUR
Purchase      6,900                37.2614
Purchase      2,933                37.3421
Purchase      2,341                37.3420
Purchase      167                  49.4900 EUR
Purchase      497                  49.4900 EUR
Purchase      322                  49.4900 EUR
Purchase      300                  36.7346
Purchase      41,683               37.5292
Purchase      654                  49.4900 EUR
Purchase      352                  49.4900 EUR
Purchase      252                  49.4900 EUR
Purchase      336                  49.4900 EUR
Purchase      9,520                37.5292
Purchase      209                  49.4900 EUR
Purchase      472                  49.4900 EUR
Purchase      294                  36.7346
Purchase      1,704                37.3416
Sale          1,300                36.8963
Sale          1,200                36.8963
Sale          153,785              37.2900
Sale          2,951                37.4096
Sale          15,497               37.2094
Sale          5,254                37.3942
Sale          201                  37.1900
Sale          400                  36.9631
Sale          924                  37.1033
Sale          400                  36.9631
Sale          748                  37.5348
Sale          734                  37.1800
Sale          124                  36.6800
Sale          20,630               37.3502

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         3717          37.1277
CFD            Short         25330         37.2302
CFD            Short         6900          37.2613
CFD            Short         2951          37.4096
CFD            Short         51341         37.4925
CFD            Long          400           36.9631
CFD            Long          15497         37.2093
CFD            Long          20630         37.3501
CFD            Long          5254          37.3941

(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                         31 January 2008
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   360,000                42.0000          AMER           20/03/2008
Option            Purchased   250,000                42.0000          AMER           20/03/2008
Option            Purchased   500                    3,400.0000       EURO           20/03/2008
Option            Purchased   400                    3,800.0000       EURO           20/06/2008
Option            Purchased   375                    4,800.0000       EURO           20/03/2008
Option            Purchased   350                    4,000.0000       EURO           20/03/2008
Option            Purchased   250                    3,200.0000       EURO           20/03/2008
Option            Purchased   150                    3,600.0000       EURO           20/03/2008
Option            Purchased   150                    4,000.0000       EURO           20/06/2008
Option            Purchased   -300                   3,000.0000       EURO           20/03/2008
Option            Purchased   -500                   3,200.0000       EURO           20/03/2008
Option            Purchased   -500                   3,600.0000       EURO           20/06/2008
Option            Purchased   -500                   3,400.0000       EURO           20/03/2008
Option            Purchased   -140,000               34.0000          AMER           20/03/2008
Option            Purchased   -360,000               36.0000          AMER           20/03/2008
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