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               29 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      110,137,247    3.76%        898,800    0.03%
securities
(2) Derivatives    24,433,398    0.83%     23,105,648    0.79%
(other than
options)
(3) Options and     1,985,020    0.07%      1,880,000    0.06%
agreements to
purchase/sell
Total             136,555,665    4.66%     25,884,448     0.88%


(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      19,304               9.2800
Purchase      4,835                9.1243
Purchase      14,845               9.2110
Purchase      3,729                9.2100
Purchase      15,000               9.1961
Purchase      3,462                9.2214
Purchase      7,666                9.2333
Purchase      15,297               9.1609
Purchase      20,395               9.1547
Purchase      23,413               9.2800
Purchase      2,490                9.1834
Purchase      34,000               9.1002
Purchase      1,800                9.1800
Purchase      2,920                9.1571
Sale          737                  9.1395
Sale          6,944                9.1395
Sale          6,268                9.2100
Sale          5,561                9.1190
Sale          4,854                9.1395
Sale          555                  9.1150
Sale          4,141                9.1395
Sale          3,385                9.1395
Sale          700                  9.1085
Sale          798                  9.1395
Sale          2,256                9.1200
Sale          10,405               9.1395
Sale          4,089                9.1395
Sale          15,110               9.1395
Sale          116,785              9.1217
Sale          91,783               9.1395
Sale          69,922               9.1612
Sale          47,942               9.1605
Sale          45,523               9.1677
Sale          35,894               9.1395
Sale          27,682               9.1714
Sale          10,000               8.8524
Sale          19,304               9.2800
Sale          7,728                9.1395
Sale          14,917               9.2098
Sale          14,605               9.1339
Sale          12,980               9.1640
Sale          11,390               9.1395
Sale          167,534              9.1591
Sale          10,000               8.8520
Sale          539                  9.0700
Sale          7,935                9.1395
Sale          23,413               9.2800


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          700           9.1085
CFD            Long          116785        9.1217
CFD            Long          167534        9.159
CFD            Long          27682         9.1713
CFD            Long          14917         9.2098
CFD            Long          23830         9.2333
CFD            Short         4835          9.1243
CFD            Short         27914         9.1266
CFD            Short         20395         9.1547
CFD            Short         2920          9.1571
CFD            Short         1800          9.18
CFD            Short         2728          9.182
CFD            Short         2490          9.1834
CFD            Short         15000         9.1961
CFD            Short         14845         9.2109
CFD            Short         3462          9.2213


(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                         30 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   500,020                782.0000         EURO           22/03/2010
Option            Purchased   460,000                782.0000         EURO           22/03/2010
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