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               10 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     110,239,204     4.99%      1,901,405     0.09%
securities
(2) Derivatives    2,675,513     0.12%     12,420,770     0.56%
(other than
options)
(3) Options and      502,700     0.02%        751,000     0.03%
agreements to
purchase/sell
Total            113,417,417     5.14%     15,073,175     0.68%

(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             2,030               13.8500
Purchase             9,820               13.9610
Purchase             15,766              13.8864
Purchase             100                 14.1100
Purchase             83                  Transfer
Purchase             1,050               Transfer
Purchase             34                  14.6284
Purchase             591,663             13.8819
Purchase             15,845              13.8319
Purchase             151                 Transfer
Purchase             6,826               13.8817
Purchase             700                 14.0400
Purchase             98,145              14.0182
Purchase             124                 Transfer
Purchase             2,530               14.2021
Purchase             319,595             13.8464
Purchase             17,000              13.8500
Purchase             22,579              13.7710
Purchase             717                 13.8461
Purchase             19,164              13.7441
Purchase             59                  14.6185
Purchase             201,292             13.8972
Purchase             190,316             13.8848
Purchase             855,671             13.8833
Purchase             2,112               14.1200
Purchase             500                 13.9692
Purchase             393                 13.8500
Purchase             750                 13.6470
Purchase             350                 13.8572
Purchase             68                  14.6285
Purchase             183                 13.8500
Purchase             459                 14.0400
Purchase             313,750             13.8500
Purchase             200                 13.5790
Purchase             210                 14.1092
Purchase             3,246               14.0400
Purchase             355                 13.9996
Purchase             2,399               14.0500
Purchase             47,389              14.8500
Purchase             2,700               13.7663
Purchase             6,524               13.8500
Purchase             46                  13.7790
Purchase             22,579              13.7669
Purchase             164                 Transfer
Sale                 8,480               14.0918
Sale                 46,000              13.9303
Sale                 100                 14.1100
Sale                 284                 Transfer
Sale                 959                 Transfer
Sale                 164                 Transfer
Sale                 11,743              13.8875
Sale                 221,371             14.0299
Sale                 380                 14.0030
Sale                 83                  Transfer
Sale                 11,581              14.1296
Sale                 31,438              13.8500
Sale                 6,524               13.8500
Sale                 350                 13.7800
Sale                 313,750             13.8500
Sale                 265                 Transfer
Sale                 986                 Transfer
Sale                 201                 Transfer
Sale                 187                 Transfer
Sale                 124                 Transfer
Sale                 22,579              13.7710
Sale                 209,099             13.8873
Sale                 27,029              13.9715
Sale                 304                 Transfer
Sale                 198,020             14.0219
Sale                 3,537               14.1400
Sale                 4,874               13.9180
Sale                 717                 14.0979
Sale                 151,012             13.8758
Sale                 195,948             13.8734
Sale                 226                 Transfer
Sale                 151                 Transfer

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2481          13.8334
CFD            Long          195948        13.8734
CFD            Long          151012        13.8758
CFD            Long          99139         13.8759
CFD            Long          11743         13.8875
CFD            Long          109960        13.8974
CFD            Long          4874          13.918
CFD            Long          46000         13.9303
CFD            Long          27029         13.9714
CFD            Long          198020        14.0219
CFD            Long          221371        14.0298
CFD            Long          8480          14.0917
CFD            Long          717           14.0978
CFD            Long          100           14.11
CFD            Long          11581         14.1296
CFD            Short         19164         13.744
CFD            Short         2700          13.7663
CFD            Short         110077        13.8257
CFD            Short         91813         13.8382
CFD            Short         717           13.846
CFD            Short         117705        13.8721
CFD            Short         6826          13.8816
CFD            Short         591663        13.8818
CFD            Short         855671        13.8832
CFD            Short         190316        13.8847
CFD            Short         15766         13.8863
CFD            Short         18511         13.8876
CFD            Short         201292        13.8972
CFD            Short         54247         13.9005
CFD            Short         9820          13.961
CFD            Short         98145         14.0182
CFD            Short         700           14.04
CFD            Short         100           14.11
CFD            Short         2530          14.2021

(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                         11 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   -250,000               16.0000          AMER           19/09/2008
Option            Purchased   -500,000               9.5000           EURO           19/12/2008
Option            Purchased   500,000                9.5000           EURO           19/12/2008
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