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               24 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     123,709,056     5.61%      2,228,269     0.10%
securities
(2) Derivatives    3,452,607     0.16%      14,304,573    0.65%
(other than
options)
(3) Options and        2,700     0.00%          1,000     0.00%
agreements to
purchase/sell
Total            127,164,363     5.76%     16,533,842     0.75%

(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             76,400              14.4000
Purchase             1,000               14.4500
Purchase             22,300              14.4000
Purchase             84,987              14.3060
Purchase             21,400              14.4000
Purchase             583                 14.3500
Purchase             1,343               14.4239
Purchase             285                 14.2900
Purchase             515                 14.2300
Purchase             186,484             14.3207
Purchase             189,793             14.1508
Purchase             13,627              14.5562
Purchase             93,143              14.5414
Purchase             45,878              14.4199
Purchase             30,000              14.2417
Purchase             26,400              14.2366
Purchase             27,330              14.3625
Purchase             100                 14.3900
Purchase             1,631               14.5500
Purchase             14,704              14.4000
Purchase             1,683               14.4239
Purchase             9,374               14.4239
Purchase             4,440               14.3500
Purchase             2,069               14.4239
Purchase             3,182               14.4239
Purchase             13,565              14.4239
Purchase             3,953               14.4239
Purchase             7,713               14.4239
Purchase             4,978               14.4239
Purchase             1,777               14.4239
Purchase             4,232               14.4000
Purchase             31,600              14.3500
Purchase             1,587               14.4239
Sale                 129,879             14.3644
Sale                 145                 14.5410
Sale                 314,535             14.2746
Sale                 93,600              14.3500
Sale                 193                 14.4900
Sale                 47                  14.5010
Sale                 40,669              14.3614
Sale                 16,200              14.2925
Sale                 100                 14.3900
Sale                 85,049              14.3166
Sale                 96                  Transfer
Sale                 182,999             14.3795
Sale                 2,270               14.2700
Sale                 619                 14.3076
Sale                 5,298               14.3076
Sale                 425                 14.2205
Sale                 11,835              14.4000
Sale                 430                 14.2300
Sale                 150,970             14.3271
Sale                 555,099             14.6030
Sale                 111,932             14.6206
Sale                 345                 140610
Sale                 189,793             14.1565
Sale                 655                 14.4000
Sale                 583                 14.3500
Sale                 963                 14.2686
Sale                 101                 Transfer
Sale                 278                 14.4805

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          963           14.2685
CFD            Long          314535        14.2746
CFD            Long          16200         14.2925
CFD            Long          85049         14.3166
CFD            Long          150970        14.3271
CFD            Long          93600         14.35
CFD            Long          40669         14.3614
CFD            Long          129879        14.3643
CFD            Long          39289         14.3669
CFD            Long          143710        14.3829
CFD            Long          100           14.39
CFD            Long          37586         14.4
CFD            Long          28238         14.4155
CFD            Long          5257          14.4529
CFD            Long          555099        14.603
CFD            Long          111932        14.6205
CFD            Short         26400         14.2366
CFD            Short         84987         14.306
CFD            Short         186484        14.3206
CFD            Short         27330         14.3624
CFD            Short         100           14.39
CFD            Short         45878         14.4198
CFD            Short         93143         14.5414
CFD            Short         13627         14.5562

(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                         25 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

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