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               21 April 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      100,581,146     4.56%      3,190,560     0.14%
securities
(2) Derivatives     3,477,474     0.16%      3,369,060     0.15%
options)
(3) Options and     1,002,450     0.05%        752,775     0.03%
agreements to
purchase/sell
Total             105,061,070     4.76%      7,312,395     0.33%

(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 Securities    Price per unit
                                         (GBP)
Purchase         131                     Transfer
Purchase         78,617                  18.3113
Purchase         134,251                 18.3355
Purchase         31,030                  18.3657
Purchase         50,342                  18.3336
Purchase         106                     Transfer
Purchase         7,511                   18.3069
Purchase         53,403                  18.3355
Purchase         429                     18.2983
Purchase         148,931                 18.3328
Purchase         100,400                 17.9100
Purchase         123,232                 18.3642
Purchase         210                     Transfer
Purchase         192                     Transfer
Purchase         314,995                 18.3313
Purchase         3,407                   18.3280
Purchase         555                     18.2835
Purchase         139                     Transfer
Purchase         13,690                  18.4500
Purchase         200                     18.3130
Purchase         35,000                  18.4500
Purchase         5,977                   18.3438
Purchase         26,514                  18.4500
Purchase         8,881                   18.3355
Purchase         7,367                   18.3355
Purchase         4,119                   18.3355
Purchase         5,617                   18.3355
Purchase         5,412                   18.3355
Purchase         5,794                   18.3355
Purchase         2,591                   18.3355
Sale             46,656                  18.4156
Sale             12,952                  18.4485
Sale             1,625                   18.3225
Sale             210                     Transfer
Sale             27,110                  18.3234
Sale             131                     Transfer
Sale             3,990                   18.3501
Sale             173,274                 18.3266
Sale             106                     Transfer
Sale             84,050                  18.3349
Sale             647                     18.4500
Sale             1,033                   18.3738
Sale             150                     18.3212
Sale             415                     18.3325
Sale             930                     18.3466
Sale             390                     18.3212
Sale             390                     18.3212
Sale             555                     18.2465
Sale             175                     18.3212
Sale             5,456                   18.4465
Sale             4,828                   18.3203
Sale             92,637                  18.3620
Sale             78                      18.3830
Sale             154                     18.2517
Sale             115                     18.3617
Sale             192                     Transfer
Sale             164                     18.3317
Sale             139                     Transfer
Sale             26,514                  18.4500

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Purchase/Sale     Number of Securities    Price per unit (GBP)
15/04/2008    Purchase          33,900                  17.3775

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          555           18.2465
CFD            Long          4828          18.3202
CFD            Long          1625          18.3224
CFD            Long          27110         18.3234
CFD            Long          173274        18.3265
CFD            Long          84050         18.3348
CFD            Long          92637         18.362
CFD            Long          5456          18.4464
CFD            Long          12952         18.4484
CFD            Short         555           18.2834
CFD            Short         7511          18.3068
CFD            Short         78617         18.3112
CFD            Short         200           18.313
CFD            Short         3407          18.328
CFD            Short         314995        18.3313
CFD            Short         148931        18.3328
CFD            Short         50342         18.3335
CFD            Short         5977          18.3438
CFD            Short         123232        18.3641
CFD            Short         31030         18.3656

(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
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.


None

Is a Supplemental Form 8 attached? (Note 9)                 YES


Date of disclosure                         22 April 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   500,000                9.5000           EURO           19/12/2008
Option            Purchased   250,000                14.0000          AMER           20/06/2008
Option            Purchased   250,000                14.0000          AMER           20/06/2008
Option            Purchased   500                    1,900.0000       EURO           18/12/2009
Option            Purchased   500                    1,900.0000       EURO           18/12/2009
Option            Purchased   350                    1,450.0000       EURO           18/12/2009
Option            Purchased   350                    1,450.0000       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
Option            Purchased   -1,775                 1,600.0000       EURO           20/06/2008
Option            Purchased   -250,000               16.0000          AMER           19/09/2008
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