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               16 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     123,974,323     5.62%      2,935,518     0.13%
securities
(2) Derivatives    3,496,778     0.16%     26,800,871     1.21%
(other than
options)
(3) Options and       2,700      0.00%        251,000     0.01%
agreements to
purchase/sell
Total            127,473,801     5.78%     29,987,389     1.36%

(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             306,800             13.6608
Purchase             47,390              13.7600
Purchase             79,471              13.7507
Purchase             1,064               13.8600
Purchase             27,267              14.2535
Purchase             300                 13.8623
Purchase             3,370               13.7600
Purchase             200,848             13.6903
Purchase             10,310              13.7748
Purchase             4,797               13.7600
Purchase             1,403               13.6497
Purchase             146,185             13.9063
Purchase             94,172              13.7292
Purchase             81,663              13.8261
Purchase             79,471              13.7507
Purchase             8,000               13.8400
Purchase             710,572             13.8360
Purchase             1,400               13.9439
Purchase             228,223             13.7839
Purchase             10,088              13.7543
Purchase             6,230               13.8721
Purchase             60,000              13.8052
Purchase             1,910               13.7757
Purchase             10,298              14.4100
Purchase             7,389               13.7750
Purchase             150                 13.5595
Purchase             6,579               13.7600
Purchase             924                 13.7600
Purchase             67,919              13.8480
Purchase             10,844              13.7600
Purchase             1,856               13.7600
Purchase             350                 13.8200
Purchase             200                 13.8900
Purchase             579                 13.7600
Purchase             3,192               13.8370
Purchase             17,000              13.7669
Purchase             3,619               13.7600
Purchase             1,813               13.7600
Purchase             3,386               13.7600
Purchase             261,990             14.0392
Sale                 80,603              13.7450
Sale                 10,088              13.7581
Sale                 78,352              13.8722
Sale                 437                 24.8300 USD
Sale                 60,000              13.8052
Sale                 60,000              13.8052
Sale                 400                 13.8977
Sale                 169                 13.4620
Sale                 149,544             13.8020
Sale                 203,431             13.7983
Sale                 1,603               13.5482
Sale                 269                 14.2600
Sale                 173                 14.3000
Sale                 22,214              13.6553
Sale                 416                 13.4510
Sale                 5,924               13.8400
Sale                 610                 13.8100
Sale                 221                 13.8100
Sale                 8,633               14.4100
Sale                 1,720               13.7600
Sale                 261,990             13.7600
Sale                 500                 14.0228
Sale                 303,084             13.7750
Sale                 59                  13.9300
Sale                 80,603              13.7450
Sale                 1,300               14.0405
Sale                 7,726               14.2953
Sale                 1,505               17.8700 EUR
Sale                 102,842             13.6140
Sale                 140                 14.5500
Sale                 1,185               13.9400
Sale                 123                 13.7310
Sale                 81                  Transfer
Sale                 211                 Transfer
Sale                 80,683              13.9570
Sale                 291,417             13.8927
Sale                 36,599              13.6578
Sale                 120                 13.9479

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1603          13.5481
CFD            Long          102842        13.614
CFD            Long          36599         13.6578
CFD            Long          161206        13.745
CFD            Long          99320         13.7561
CFD            Long          137711        13.7696
CFD            Long          203431        13.7983
CFD            Long          149544        13.8019
CFD            Long          60000         13.8052
CFD            Long          9195          13.8065
CFD            Long          13161         13.8069
CFD            Long          66053         13.8147
CFD            Long          78352         13.8721
CFD            Long          291417        13.8926
CFD            Long          400           13.8977
CFD            Long          120           13.9479
CFD            Long          80683         13.9569
CFD            Long          1300          14.0405
CFD            Long          7726          14.2953
CFD            Short         1403          13.6497
CFD            Short         200848        13.6903
CFD            Short         154032        13.738
CFD            Short         158942        13.7507
CFD            Short         2864          13.8058
CFD            Short         81663         13.826
CFD            Short         710572        13.836
CFD            Short         67919         13.8479
CFD            Short         300           13.8623
CFD            Short         6230          13.872
CFD            Short         74191         13.879
CFD            Short         146185        13.9062
CFD            Short         1400          13.9439
CFD            Short         27267         14.2535

(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                         17 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
Option            Purchased   -250,000               16.0000          AMER           19/09/2008

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