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               23 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     124,676,108     5.65%      1,954,018     0.09%
securities
(2) Derivatives    3,105,513     0.14%     15,232,606     0.69%
(other than
options)
(3) Options and        2,700     0.00%          1,000     0.00%
agreements to
purchase/sell
Total            127,784,321     5.79%     17,187,624     0.78%

(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             92,337              14.7900
Purchase             150                 14.3895
Purchase             345                 14.3400
Purchase             115,114             14.3250
Purchase             860                 14.7900
Purchase             98,015              14.1988
Purchase             14,634              14.0517
Purchase             57,000              14.3500
Purchase             5,426               14.1559
Purchase             278                 Transfer
Purchase             500                 14.3500
Purchase             435,542             14.2827
Purchase             1,480               14.2833
Purchase             1,300               14.1923
Purchase             2,761               14.3647
Purchase             86                  14.0923
Purchase             56,010              14.3044
Purchase             132,580             14.1629
Purchase             33                  14.8100
Purchase             36,780              14.3500
Purchase             49                  14.6300
Purchase             4,036               14.3500
Purchase             175                 14.3090
Purchase             14,286              14.7900
Purchase             8,950               14.0937
Purchase             20,000              14.3200
Purchase             200                 14.3495
Purchase             300                 14.2995
Purchase             2,006               14.1918
Purchase             400                 14.3025
Purchase             58,848              14.7900
Purchase             99,460              14.2085
Purchase             100                 14.2795
Purchase             200                 14.2872
Sale                 9,897               14.2333
Sale                 559,044             14.2869
Sale                 1,022               14.2976
Sale                 161                 Transfer
Sale                 25                  14.8000
Sale                 890                 Transfer
Sale                 276,863             14.9957
Sale                 115                 14.4110
Sale                 92,337              14.7900
Sale                 400                 14.3025
Sale                 11,618              14.3437
Sale                 456,243             14.3577
Sale                 134                 13.8410
Sale                 146,634             14.2366
Sale                 7,197               14.3500
Sale                 194                 14.6300
Sale                 115,114             14.3250
Sale                 14,286              14.7900
Sale                 1,845               14.7900
Sale                 2,509               14.3100
Sale                 566                 14.3100
Sale                 340                 14.2910
Sale                 2,236               14.3500
Sale                 63,571              14.3500
Sale                 478                 Transfer
Sale                 44,915              14.3512
Sale                 278                 Transfer
Sale                 1,280,143           14.1673
Sale                 1,469               14.2496
Sale                 11,651              14.3343
Sale                 355                 14.5830
Sale                 153,628             14.3612
Sale                 860                 14.7900
Sale                 53                  14.3110
Sale                 97,881              14.2317
Sale                 31,524              14.3228
Sale                 24,000              14.0479
Sale                 115,114             14.3250
Sale                 350                 14.2829

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          24000         14.0478
CFD            Long          1280143       14.1672
CFD            Long          97881         14.2316
CFD            Long          146634        14.2365
CFD            Long          134077        14.2584
CFD            Long          423617        14.2956
CFD            Long          1022          14.2976
CFD            Long          400           14.3025
CFD            Long          31524         14.3227
CFD            Long          11651         14.3342
CFD            Long          11618         14.3436
CFD            Long          1350          14.3466
CFD            Long          44915         14.3512
CFD            Long          456243        14.3577
CFD            Long          153628        14.3612
CFD            Long          276863        14.9956
CFD            Short         12569         14.0467
CFD            Short         14634         14.0517
CFD            Short         86            14.0923
CFD            Short         8950          14.0937
CFD            Short         5426          14.1559
CFD            Short         119384        14.1746
CFD            Short         2006          14.1917
CFD            Short         1300          14.1923
CFD            Short         98015         14.1987
CFD            Short         9861          14.2007
CFD            Short         99460         14.2085
CFD            Short         23964         14.2227
CFD            Short         627           14.2519
CFD            Short         435542        14.2826
CFD            Short         400           14.3025
CFD            Short         56010         14.3043
CFD            Short         4274          14.35

(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                         24 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