Rule 8.3 - BHP BILLITON 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              BHP BILLITON PLC
Class of relevant security    USD0.50
to which the dealings being
disclosed relate (Note 2)
Date of dealing               25 September 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     113,636,154     5.15%       1,923,340    0.09%
securities
(2) Derivatives    3,162,671     0.14%      14,386,254    0.65%
(other than
options)
(3) Options and        2,700     0.00%          1,000     0.00%
agreements to
purchase/sell
Total            116,801,525     5.29%     16,310,594     0.74%

(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           Price per unit
                   Securities          (GBP)
Purchase           583                 14.41
Purchase           119,232             14.2948
Purchase           7                   14.32
Purchase           11,381              14.4284
Purchase           394,989             14.3275
Purchase           48,014              14.4284
Purchase           181                 Transfer
Purchase           85,500              14.2795
Purchase           500                 14.5224
Purchase           6,387               14.4
Purchase           43,200              14.799
Purchase           124,200             14.799
Purchase           919,229             14.2965
Purchase           1,300               14.4846
Purchase           1,277               14.4
Purchase           52,500              14.2795
Purchase           2,390               14.3449
Purchase           5,182               14.4
Purchase           481                 14.25
Purchase           50,400              14.2795
Purchase           8,353               14.4
Purchase           180,300             14.2795
Purchase           2,006               14.4519
Purchase           7,438               14.2544
Purchase           99,297              14.3537
Purchase           265,140             14.3999
Purchase           100                 14.41
Purchase           30,169              14.4097
Purchase           4,352               14.1617
Purchase           4,248               14.2062
Sale               203                 14.351
Sale               89                  14.3105
Sale               290                 14.4
Sale               600                 14.4
Sale               350                 14.4
Sale               450                 14.4
Sale               550                 14.4
Sale               500                 14.4
Sale               500                 14.4
Sale               500                 14.4
Sale               3,500               14.4
Sale               1,000               14.4
Sale               1,000               14.4
Sale               750                 14.4
Sale               650                 14.4
Sale               100                 14.41
Sale               33,254              14.2526
Sale               2,535               14.3384
Sale               1,000               14.4789
Sale               7,544               14.445
Sale               389                 14.501
Sale               130                 14.2705
Sale               949                 Transfer
Sale               181                 Transfer
Sale               3,900               14.3672
Sale               166,374             14.2762
Sale               50,000              14.3831
Sale               1,000               14.41
Sale               24,000              14.3865
Sale               400                 14.4
Sale               2,300               14.2693
Sale               350                 14.4
Sale               195,557             14.3393
Sale               886,933             14.3502
Sale               119,565             14.2985
Sale               1,000               14.4789
Sale               275                 14.4
Sale               400                 14.4
Sale               350                 14.4
Sale               400                 14.4
Sale               300                 14.4
Sale               400                 14.4
Sale               400                 14.4
Sale               520                 14.4005
Sale               250                 14.4
Sale               475                 14.4
Sale               500                 14.4
Sale               400                 14.4
Sale               375                 14.4
Sale               400                 14.4
Sale               350                 14.4
Sale               350                 14.4
Sale               350                 14.4
Sale               300                 14.3005
Sale               500                 14.4
Sale               600                 14.4029
Sale               350                 14.4
Sale               500                 14.4
Sale               250                 14.4
Sale               400                 14.4
Sale               350                 14.4
Sale               350                 14.4
Sale               550                 14.4
Sale               30,331              14.4027
Sale               375                 14.4
Sale               250                 14.4
Sale               500                 14.4
Sale               825                 14.4
Sale               4,352               14.3423
Sale               350                 14.4
Sale               480                 14.4
Sale               400                 14.4
Sale               450                 14.4
Sale               500                 14.4
Sale               400                 14.4
Sale               260                 14.4
Sale               650                 14.4
Sale               350                 14.4
Sale               300                 14.4
Sale               350                 14.4
Sale               300                 14.4
Sale               500                 14.4
Sale               300                 14.4
Sale               750                 14.4
Sale               400                 14.4
Sale               500                 14.4
Sale               350                 14.4
Sale               500                 14.4
Sale               400                 14.4
Sale               400                 14.4
Sale               450                 14.4
Sale               550                 14.4
Sale               600                 14.4
Sale               500                 14.4

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          11777         14.174
CFD            Long          33254         14.2526
CFD            Long          2300          14.2693
CFD            Long          166374        14.2762
CFD            Long          119565        14.2985
CFD            Long          107695        14.3317
CFD            Long          2535          14.3383
CFD            Long          4352          14.3422
CFD            Long          87862         14.3484
CFD            Long          886933        14.3501
CFD            Long          3900          14.3671
CFD            Long          50000         14.3831
CFD            Long          24000         14.3865
CFD            Long          2626          14.4
CFD            Long          1100          14.41
CFD            Short         4352          14.1616
CFD            Short         4248          14.2061
CFD            Short         7438          14.2543
CFD            Short         55669         14.2734
CFD            Short         119232        14.2947
CFD            Short         919229        14.2965
CFD            Short         113792        14.3193
CFD            Short         31466         14.3231
CFD            Short         249731        14.3317
CFD            Short         2390          14.3448
CFD            Short         99297         14.3536
CFD            Short         265140        14.3998
CFD            Short         100           14.41
CFD            Short         2006          14.4518
CFD            Short         1300          14.4846
CFD            Short         500           14.5224

(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                         26 September 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   -500                   950.0000         EURO           19/12/2008
Option            Purchased   -500                   950.0000         EURO           19/12/2008
Option            Purchased   750                    2,200.0000       EURO           19/12/2008
Option            Purchased   350                    1,450.0000       EURO           18/12/2009
Option            Purchased   350                    1,450.0000       EURO           18/12/2009
Option            Purchased   250                    1,900.0000       EURO           18/12/2009
Option            Purchased   250                    1,900.0000       EURO           18/12/2009
Option            Purchased   250                    1,700.0000       EURO           19/12/2008
Option            Purchased   250                    1,500.0000       EURO           18/12/2009
Option            Purchased   250                    1,500.0000       EURO           18/12/2009

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