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               12 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     124,252,064     5.63%      2,155,274     0.10%
securities
(2) Derivatives    2,843,277     0.13%     26,867,267     1.22%
(other than
options)
(3) Options and      502,700     0.02%        751,000     0.03%
agreements to
purchase/sell
Total            127,598,041     5.78%     29,773,541     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             626,620             14.7803
Purchase             45,690              14.7779
Purchase             4,000               14.4700
Purchase             748                 14.7110
Purchase             98,556              14.7131
Purchase             57,527              14.9861
Purchase             56                  14.8080
Purchase             14,006              14.5475
Purchase             66,820              14.6216
Purchase             201                 Transfer
Purchase             400                 14.6925
Purchase             81                  14.8284
Purchase             151,007             14.7173
Purchase             68,518              14.8797
Purchase             8,400               14.0500
Purchase             17,444              15.0900
Purchase             7,216               14.7527
Purchase             8,644               14.0500
Purchase             304                 Transfer
Purchase             4,000               14.4700
Purchase             42,441              14.7150
Purchase             57,000              13.9000
Purchase             1,939               Transfer
Purchase             325                 14.7490
Purchase             265                 14.7390
Purchase             2,999               15.0900
Purchase             42                  14.6790
Purchase             80                  Transfer
Sale                 171,669             14.8061
Sale                 4,000               14.4700
Sale                 785                 14.8400
Sale                 143                 14.2010
Sale                 10,778              14.6864
Sale                 111                 14.1920
Sale                 80                  14.7100
Sale                 5,100               14.5104
Sale                 31,428              .1474
Sale                 304                 Transfer
Sale                 3,370               14.8200
Sale                 141                 14.2010
Sale                 215                 14.5520
Sale                 16,708              14.7321
Sale                 57,000              15.0900
Sale                 748                 14.4478
Sale                 4,147               15.0900
Sale                 1,234               15.0900
Sale                 400                 14.7510
Sale                 54,000              14.7157
Sale                 145,740             14.7231
Sale                 578                 15.0877
Sale                 400                 14.6925
Sale                 9,190               15.0881
Sale                 202,413             14.6599
Sale                 1,163               14.7400
Sale                 110,614             14.7098
Sale                 2,686               14.6402
Sale                 224                 14.1720
Sale                 421                 14.7300
Sale                 118,206             14.7150
Sale                 322,293             14.7732
Sale                 29                  Transfer
Sale                 350                 14.8400
Sale                 8,400               14.0500
Sale                 900                 14.7276
Sale                 238,207             14.7397
Sale                 80                  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          31428         0.1474
CFD            Long          748           14.4478
CFD            Long          2686          14.6401
CFD            Long          202413        14.6599
CFD            Long          10778         14.6863
CFD            Long          400           14.6925
CFD            Long          110614        14.7097
CFD            Long          28701         14.7101
CFD            Long          226970        14.715
CFD            Long          54000         14.7156
CFD            Long          145740        14.723
CFD            Long          89911         14.7259
CFD            Long          900           14.7276
CFD            Long          238207        14.7397
CFD            Long          1163          14.74
CFD            Long          18171         14.7425
CFD            Long          322293        14.7732
CFD            Long          53057         14.9938
CFD            Long          578           15.0877
CFD            Long          9190          15.0881
CFD            Short         57000         13.9
CFD            Short         66820         14.6216
CFD            Short         400           14.6925
CFD            Short         748           14.7109
CFD            Short         98556         14.7131
CFD            Short         74852         14.7148
CFD            Short         151205        14.715
CFD            Short         76155         14.7196
CFD            Short         24184         14.7321
CFD            Short         7216          14.7527
CFD            Short         45690         14.7779
CFD            Short         626620        14.7802
CFD            Short         68518         14.8796
CFD            Short         57527         14.986

(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                         15 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