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               11 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     124,348,284     5.63%      1,824,173     0.08%
securities
(2) Derivatives    2,519,118     0.11%     26,735,565     1.21%
(other than
options)
(3) Options and      502,700     0.02%        751,000     0.03%
agreements to
purchase/sell
Total            127,370,102     5.77%     29,310,738     1.33%

(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             13,740              13.8297
Purchase             154                 Transfer
Purchase             119                 Transfer
Purchase             13,740              13.8295
Purchase             104,284             13.9590
Purchase             3,537               13.9100
Purchase             643,487             13.9841
Purchase             13,229              14.0405
Purchase             372                 13.6790
Purchase             72,638              13.9184
Purchase             7,675,538           13.7400
Purchase             50                  13.6892
Purchase             8,400               14.0500
Purchase             26,000              14.0983
Purchase             268,289             13.9826
Purchase             277,454             13.8446
Purchase             229                 14.0490
Purchase             715                 14.0943
Purchase             206                 14.0890
Purchase             141                 13.8780
Purchase             200                 13.6700
Purchase             24,984              13.7963
Purchase             52                  13.9390
Purchase             135,100             13.8327
Purchase             127,497             14.0199
Purchase             1,689               13.9741
Purchase             250                 13.8196
Purchase             290                 13.9784
Purchase             1,032               14.0500
Purchase             13,230              14.0483
Purchase             1,874               14.0483
Purchase             195,069             13.9835
Purchase             574                 14.0500
Purchase             1,904               13.9741
Purchase             250                 13.8196
Purchase             1,436               13.9741
Purchase             3,186               13.9739
Purchase             909                 13.9743
Purchase             3,593               13.9738
Purchase             15,802              13.9738
Purchase             41,454              13.9738
Purchase             743                 14.0483
Purchase             6,148,394           13.7400
Purchase             2,978               13.9740
Sale                 135,100             13.8327
Sale                 115,035             13.9707
Sale                 16,298              14.0714
Sale                 34                  Transfer
Sale                 25,424              13.9119
Sale                 170,700             13.9163
Sale                 287                 14.0986
Sale                 394                 14.1810
Sale                 39,000              14.1007
Sale                 131,232             14.0437
Sale                 1,579               13.8500
Sale                 401                 13.7579
Sale                 142,706             14.8676
Sale                 13,740              13.8295
Sale                 20,268              14.0500
Sale                 5,777               13.9333
Sale                 1,500               13.9400
Sale                 8,348               14.0500
Sale                 18,339              14.0500
Sale                 44                  14.1010
Sale                 242                 14.1310
Sale                 950                 14.0277
Sale                 152                 13.6977
Sale                 7,600               13.9228
Sale                 140,154             13.8544
Sale                 2,119               14.1900
Sale                 108,905             13.9796
Sale                 257,620             14.1655
Sale                 13,000              14.0500
Sale                 154                 Transfer
Sale                 79,186              13.7951
Sale                 1,796               14.0479
Sale                 220,329             14.0031
Sale                 119                 Transfer
Sale                 200                 13.6700
Sale                 57,000              13.9000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          200           13.67
CFD            Long          152           13.6976
CFD            Long          401           13.7579
CFD            Long          79186         13.7951
CFD            Long          135100        13.8327
CFD            Long          140154        13.8543
CFD            Long          114616        13.895
CFD            Long          57000         13.9
CFD            Long          25424         13.9118
CFD            Long          37580         13.9166
CFD            Long          7600          13.9227
CFD            Long          39343         13.923
CFD            Long          115035        13.9706
CFD            Long          108905        13.9795
CFD            Long          220329        14.0031
CFD            Long          950           14.0277
CFD            Long          131232        14.0436
CFD            Long          16741         14.0455
CFD            Long          1796          14.0478
CFD            Long          287           14.0986
CFD            Long          39000         14.1007
CFD            Short         200           13.67
CFD            Short         13823932      13.74
CFD            Short         135100        13.8327
CFD            Short         277454        13.8446
CFD            Short         22907         13.9007
CFD            Short         31420         13.9011
CFD            Short         128673        13.9107
CFD            Short         72638         13.9183
CFD            Short         104284        13.959
CFD            Short         195069        13.9834
CFD            Short         643487        13.984
CFD            Short         127497        14.0199
CFD            Short         13229         14.0405
CFD            Short         103555        14.048
CFD            Short         36061         14.0514
CFD            Short         715           14.0942
CFD            Short         26000         14.0982

(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                         12 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