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               09 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     108,932,033     4.94%      2,851,798     0.13%
securities
(2) Derivatives    3,596,734     0.16%     10,959,024     0.50%
(other than
options)
(3) Options and      502,700     0.02%        751,000     0.03%
agreements to
purchase/sell
Total            113,031,467     5.12%     14,561,822     0.66%

(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             260                 14.1792
Purchase             4,258               14.4252
Purchase             14,958              14.0500
Purchase             7,476               14.8500
Purchase             14,952              14.8500
Purchase             86,445              14.0500
Purchase             984                 14.0521
Purchase             42                  14.0612
Purchase             8,644               14.9262
Purchase             200                 14.5692
Purchase             8,500               14.3882
Purchase             10,520              14.0500
Purchase             91                  14.0625
Purchase             223,609             14.6256
Purchase             3,515               13.8900
Purchase             155,879             14.1237
Purchase             11,045              14.3999
Purchase             1,700               14.5742
Purchase             230                 Transfer
Purchase             55,954              14.1685
Purchase             1,201,370           14.4610
Purchase             8,838               14.2888
Purchase             8,633               14.8500
Purchase             35,000              14.0500
Purchase             1,200               14.4725
Purchase             1,200               14.0750
Purchase             421,347             14.3832
Purchase             83                  Transfer
Purchase             102                 14.6285
Purchase             119,906             14.3896
Purchase             14,170              13.8505
Purchase             29,000              14.0241
Purchase             1,485               14.8000
Purchase             73,300              14.5860
Sale                 210,224             14.0545
Sale                 356,302             14.2092
Sale                 235                 15.0500
Sale                 1,200               14.4725
Sale                 77,131              14.1182
Sale                 124,863             14.3808
Sale                 70                  14.7000
Sale                 2,627               14.3978
Sale                 51                  14.4178
Sale                 204,524             14.3270
Sale                 180                 15.0403
Sale                 215,241             14.1878
Sale                 114                 Transfer
Sale                 394                 Transfer
Sale                 1,800               14.3028
Sale                 130                 14.5830
Sale                 1,200               14.0750
Sale                 63                  14.6600
Sale                 59                  14.3915
Sale                 3,938               14.6400
Sale                 12,076              14.8500
Sale                 259                 Transfer
Sale                 8,633               14.8500
Sale                 73                  14.5830
Sale                 16,625              14.8500
Sale                 275                 14.7015
Sale                 740                 14.7930
Sale                 83                  Transfer
Sale                 1,700               14.8441
Sale                 600                 14.5615
Sale                 300                 13.8100
Sale                 3,323               14.8500
Sale                 12,000              14.6295

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          122257        13.9741
CFD            Long          7882          14.0529
CFD            Long          210224        14.0545
CFD            Long          1200          14.075
CFD            Long          77131         14.1182
CFD            Long          356302        14.2091
CFD            Long          1800          14.3027
CFD            Long          204524        14.327
CFD            Long          124863        14.3808
CFD            Long          2627          14.3977
CFD            Long          51            14.4178
CFD            Long          92984         14.4687
CFD            Long          1200          14.4725
CFD            Long          1689          14.5097
CFD            Long          12000         14.6294
CFD            Long          3938          14.64
CFD            Long          2999          14.853
CFD            Long          1604          15.1531
CFD            Short         14170         13.8505
CFD            Short         60545         13.8936
CFD            Short         984           14.0521
CFD            Short         1200          14.075
CFD            Short         155879        14.1237
CFD            Short         55954         14.1684
CFD            Short         8838          14.2887
CFD            Short         244657        14.3269
CFD            Short         119906        14.3895
CFD            Short         11045         14.3999
CFD            Short         4258          14.4251
CFD            Short         1201          14.43
CFD            Short         102760        14.4345
CFD            Short         1201370       14.461
CFD            Short         1200          14.4725
CFD            Short         73930         14.4983
CFD            Short         41828         14.5561
CFD            Short         1700          14.5742
CFD            Short         73300         14.5859
CFD            Short         223609        14.6255
CFD            Short         39859         15.1074
CFD            Short         16023         15.1078

(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                         10 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                   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
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

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