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               17 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     122,988,817     5.57%      2,634,098     0.12%
securities
(2) Derivatives    3,292,899     0.15%     25,626,565     1.16%
(other than
options)
(3) Options and       2,700      0.00%        251,000     0.01%
agreements to
purchase/sell
Total            126,284,416     5.72%     28,511,663     1.29%

(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             33,900              14.1769
Purchase             459,042             13.4937
Purchase             116,900             13.5002
Purchase             190                 14.3790
Purchase             10,088              13.7581
Purchase             57,000              13.7600
Purchase             1,418               13.9650
Purchase             1,659,502           13.7577
Purchase             850                 14.1795
Purchase             168,763             13.4684
Purchase             790                 13.3191
Purchase             843,940             13.6173
Purchase             31,428              13.7600
Purchase             2,365               13.7176
Purchase             5,102               13.6703
Purchase             212,316             13.8866
Purchase             73,000              12.9000
Purchase             29,536              13.7333
Purchase             10,713              13.4074
Purchase             85                  Transfer
Purchase             144,744             13.9304
Purchase             20,440              13.7499
Purchase             52,379              13.3191
Purchase             2,200               12.9400
Purchase             7,051               14.3611
Purchase             750                 13.5400
Purchase             1,423               13.3191
Purchase             778                 13.3191
Purchase             9,460               13.3191
Purchase             5,073               13.3191
Purchase             7,413               13.3191
Purchase             3,931               13.3191
Purchase             4,990               13.3191
Purchase             3,470               13.3191
Purchase             10,965              13.3191
Purchase             317,040             13.4537
Purchase             174,929             13.3191
Purchase             79,744              12.9000
Purchase             35,542              12.9000
Purchase             9,277               13.3191
Purchase             3,004               12.9000
Purchase             72,429              13.4241
Sale                 149,625             13.7189
Sale                 16,350              13.8395
Sale                 450,000             14.2438
Sale                 181                 Transfer
Sale                 268                 13.5910
Sale                 64                  13.9600
Sale                 1,922               12.9000
Sale                 50                  14.3782
Sale                 413                 13.6010
Sale                 24,940              13.9641
Sale                 1,669,084           13.6946
Sale                 234                 13.9000
Sale                 1,415               12.9000
Sale                 286                 Transfer
Sale                 400                 14.3100
Sale                 8,348               12.9000
Sale                 2,720               12.9000
Sale                 200                 14.1900
Sale                 10,302              12.9000
Sale                 17,100              13.1349
Sale                 449                 Transfer
Sale                 664                 Transfer
Sale                 436                 Transfer
Sale                 317,040             13.4591
Sale                 1,659,502           13.7577
Sale                 495                 Transfer
Sale                 267,415             13.5121
Sale                 142,840             13.9278
Sale                 306,800             13.6663
Sale                 2,500               13.8324
Sale                 85                  Transfer
Sale                 1,021               13.5263
Sale                 150                 Transfer
Sale                 449,040             13.5573
Sale                 17,766              13.2203
Sale                 57,000              13.9000
Sale                 300                 13.7079
Sale                 20,073              14.1250
Sale                 49,000              14.2893

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Purchase/Sale     Number of Securities     Price per unit (GBP)
16/09/2008    Sale              80,603                   13.7450
16/09/2008    Purchase          79,471                   13.7507

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          179873        13.1035
CFD            Long          17100         13.1349
CFD            Long          17766         13.2203
CFD            Long          11201         13.5003
CFD            Long          267415        13.512
CFD            Long          1021          13.5262
CFD            Long          1669084       13.6946
CFD            Long          300           13.7079
CFD            Long          149625        13.7188
CFD            Long          1659502       13.7576
CFD            Long          166562        13.8307
CFD            Long          2500          13.8324
CFD            Long          16350         13.8395
CFD            Long          102605        13.9086
CFD            Long          142840        13.9277
CFD            Long          24940         13.964
CFD            Long          49000         14.2892
CFD            Long          50            14.3782
CFD            Short         6731          13.1715
CFD            Short         311338        13.3803
CFD            Short         10713         13.4074
CFD            Short         72429         13.424
CFD            Short         168763        13.4683
CFD            Short         116900        13.5001
CFD            Short         843940        13.6173
CFD            Short         5102          13.6702
CFD            Short         2365          13.7176
CFD            Short         20440         13.7499
CFD            Short         1659502       13.7576
CFD            Short         140973        13.7594
CFD            Short         212316        13.8866
CFD            Short         144744        13.9304

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Purchase/Sale     Number of Securities     Price per unit (GBP)
16/09/2008    Long              80,603                   13.745

(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                         18 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                   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