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               22 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     126,941,807     5.75%     25,055,566     1.14%
securities
(2) Derivatives    2,573,301     0.12%     16,903,452     0.77%
(other than
options)
(3) Options and        2,700     0.00%          1,000     0.00%
agreements to
purchase/sell
Total            129,517,808     5.87%     41,960,018     1.90%

(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             23,469              14.8186
Purchase             830                 14.7495
Purchase             100,000             15.1086
Purchase             75                  Transfer
Purchase             107                 14.8800
Purchase             92,337              14.7900
Purchase             870                 14.7900
Purchase             302,890             14.9586
Purchase             893                 14.4700
Purchase             913                 14.4700
Purchase             3,242               14.4700
Purchase             2,200               15.1052
Purchase             77,401              14.5215
Purchase             11,606              14.8802
Purchase             125,098             14.2777
Purchase             609                 14.4700
Purchase             130                 Transfer
Purchase             40,905              14.7553
Purchase             21,263              14.8242
Purchase             178,446             14.8642
Purchase             247                 14.9200
Purchase             436                 Transfer
Purchase             276                 Transfer
Purchase             2,437               14.4700
Purchase             33,296              14.9589
Purchase             136                 Transfer
Purchase             744,469             14.9010
Purchase             73,718              14.9796
Purchase             4,640               15.0925
Purchase             42,600              14.7723
Purchase             15,107              14.8802
Purchase             1,320               14.8817
Purchase             2,372               14.8812
Purchase             1,655               14.8815
Purchase             694                 14.8500
Purchase             3,025               14.8809
Purchase             54,604              14.8802
Purchase             1,601               14.8814
Purchase             800                 14.8700
Purchase             280                 14.7700
Purchase             3,848               14.8805
Purchase             37,155              14.7900
Purchase             262,977             14.4700
Purchase             2,100               14.9528
Purchase             7,105               14.7900
Purchase             815                 14.8866
Purchase             5,017               14.8801
Purchase             3,456               14.8809
Purchase             1,161               14.8818
Purchase             2,778               14.8810
Purchase             16,361              14.8803
Sale                 100,000             15.1086
Sale                 893                 14.4700
Sale                 31,000              14.7900
Sale                 136                 Transfer
Sale                 129                 14.0900
Sale                 2,411               14.7900
Sale                 11,389              14.7900
Sale                 37,155              14.7900
Sale                 137                 14.0600
Sale                 2,437               14.4700
Sale                 48,725              14.8990
Sale                 609                 14.4700
Sale                 130                 Transfer
Sale                 87                  14.8910
Sale                 26,400              14.7500
Sale                 39,335              14.7900
Sale                 213                 14.3800
Sale                 433                 Transfer
Sale                 8,640               14.7900
Sale                 913                 14.4700
Sale                 307                 Transfer
Sale                 112                 14.8400
Sale                 4,640               15.0925
Sale                 830                 14.7110
Sale                 7,179               14.9857
Sale                 195                 15.0820
Sale                 33,153              14.9359
Sale                 3,242               14.4700
Sale                 397                 14.8614
Sale                 276                 Transfer
Sale                 270                 Transfer
Sale                 3,600               14.7800
Sale                 75                  Transfer
Sale                 17,000              15.0600
Sale                 3,242               14.7600
Sale                 76,853              14.5127
Sale                 590                 14.8910
Sale                 850                 14.9030
Sale                 400                 14.7400
Sale                 4,640               15.0985
Sale                 59,784              14.9011
Sale                 3,200               14.7791
Sale                 91                  14.8910
Sale                 498,050             14.9508
Sale                 90                  15.0210
Sale                 374                 26.9300 USD
Sale                 900                 14.8475
Sale                 950                 14.7900
Sale                 4,243               15.0900
Sale                 481,840             14.9343


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          76853         14.5126
CFD            Long          3200          14.779
CFD            Long          3600          14.78
CFD            Long          900           14.8475
CFD            Long          397           14.8614
CFD            Long          48725         14.8989
CFD            Long          59784         14.9011
CFD            Long          368348        14.9308
CFD            Long          33153         14.9358
CFD            Long          112041        14.9449
CFD            Long          498050        14.9507
CFD            Long          1451          14.9679
CFD            Long          4640          15.0924
CFD            Long          100000        15.1086
CFD            Short         125098        14.2776
CFD            Short         77401         14.5215
CFD            Short         62148         14.7369
CFD            Short         40905         14.7553
CFD            Short         42600         14.7722
CFD            Short         380           14.8125
CFD            Short         23469         14.8185
CFD            Short         744469        14.901
CFD            Short         115918        14.9326
CFD            Short         302890        14.9585
CFD            Short         33296         14.9588
CFD            Short         73718         14.9795
CFD            Short         2200          15.1052
CFD            Short         100000        15.1086

(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                         23 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   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