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               15 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     123,320,276     5.59%      2,582,902     0.12%
securities
(2) Derivatives    3,195,153     0.14%     26,366,093     1.19%
(other than
options)
(3) Options and      502,700     0.02%        751,000     0.03%
agreements to
purchase/sell
Total            127,018,129     5.76%     29,699,995     1.35%

(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             2,922               14.3483
Purchase             200                 14.3000
Purchase             4,817               14.4000
Purchase             128,240             14.3914
Purchase             3,800               14.4197
Purchase             507                 14.4122
Purchase             17,000              14.4100
Purchase             36,080              14.4025
Purchase             203,851             14.3994
Purchase             300,000             14.4287
Purchase             446,080             14.3397
Purchase              8,633              14.0500
Purchase             49,830              14.3817
Purchase             6,765               14.3614
Purchase             736                 14.4024
Purchase             500,000             14.4100
Purchase             50,170              14.3291
Purchase             1,664               14.3500
Purchase             84                  Transfer
Purchase             5,931               14.4100
Purchase             125                 14.6100
Purchase             9,190               14.4298
Purchase             600                 14.3971
Purchase             350                 14.2800
Purchase             1,050               14.3800
Purchase             26,883              14.4100
Purchase             42,401              14.4100
Purchase             21,234              14.4100
Purchase             340                 14.2400
Purchase             500,000             14.4100
Purchase             1,603               14.3643
Purchase             6,900               14.3906
Sale                 500,000             14.4100
Sale                 19,639              14.2692
Sale                 304                 14.7220
Sale                 36                  14.4810
Sale                 2,510               14.4860
Sale                 320,167             14.4696
Sale                 49,078              14.5674
Sale                 118                 14.4910
Sale                 121                 14.3300
Sale                 158                 14.8410
Sale                 52,678              14.4087
Sale                 300,000             14.4287
Sale                 87                  14.3700
Sale                 125,933             14.4055
Sale                 201                 Transfer
Sale                 17,773              14.4100
Sale                 3,461               14.4100
Sale                 270                 14.5700
Sale                 4,174               14.4100
Sale                 10,486              14.4100
Sale                 11,323              14.4100
Sale                 127                 14.4710
Sale                 62,000              14.4827
Sale                 836,301             14.3961
Sale                 110                 14.5110
Sale                 167,033             14.4273
Sale                 254                 14.3000
Sale                 86                  14.2900
Sale                 500,000             14.4100
Sale                 206                 14.8410
Sale                 113                 14.8410
Sale                 225,450             14.4438
Sale                 200                 14.3000
Sale                 900                 14.4300
Sale                 195                 14.2800
Sale                 46,848              14.5325
Sale                 82,576              14.4519
Sale                 25,858              14.5297

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Purchase/Sale     Number of Securities     Price per unit (GBP)
10/09/2008    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          19639         14.2691
CFD            Long          200           14.3
CFD            Long          836301        14.3961
CFD            Long          6811          14.3993
CFD            Long          125933        14.4054
CFD            Long          122753        14.4055
CFD            Long          52678         14.4087
CFD            Long          167033        14.4272
CFD            Long          300000        14.4287
CFD            Long          900           14.43
CFD            Long          225450        14.4437
CFD            Long          82576         14.4519
CFD            Long          62000         14.4826
CFD            Long          14647         14.4829
CFD            Long          2510          14.4859
CFD            Long          182767        14.5115
CFD            Long          49078         14.5673
CFD            Short         200           14.3
CFD            Short         50170         14.3291
CFD            Short         446080        14.3397
CFD            Short         2922          14.3483
CFD            Short         6765          14.3614
CFD            Short         1603          14.3642
CFD            Short         49830         14.3817
CFD            Short         113605        14.3891
CFD            Short         6900          14.3905
CFD            Short         128240        14.3913
CFD            Short         1879          14.3917
CFD            Short         36816         14.4024
CFD            Short         90753         14.4121
CFD            Short         3800          14.4197
CFD            Short         300000        14.4287
CFD            Short         9190          14.4297

(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                         16 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   500,000                9.5000           EURO           19/12/2008
Option            Purchased   -250,000               16.0000          AMER           19/09/2008
Option            Purchased   -500,000               9.5000           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   -500                   950.0000         EURO           19/12/2008
Option            Purchased   -500                   950.0000         EURO           19/12/2008

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