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               22 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      100,864,527     4.57%      2,872,061     0.13%
securities
(2) Derivatives     3,405,750     0.15%      3,395,401     0.15%
options)
(3) Options and     1,002,450     0.05%        752,775     0.03%
agreements to
purchase/sell
Total             105,272,727     4.77%      7,020,237     0.32%

(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         13,000                  18.8200
Purchase         1,000                   18.6817
Purchase         12,108                  18.6681
Purchase         28,743                  18.6489
Purchase         46,656                  18.7088
Purchase         6,419                   18.6941
Purchase         125                     18.7400
Purchase         33,769                  18.6710
Purchase         45                      18.5983
Purchase         600                     18.6831
Purchase         377                     18.6936
Purchase         438                     Transfer
Purchase         96,618                  18.5528
Purchase         72,289                  18.7334
Purchase         162,831                 18.6859
Purchase         154,946                 18.8110
Purchase         137,309                 18.6866
Purchase         5,000                   18.7400
Purchase         109,255                 18.7168
Purchase         607                     Transfer
Purchase         2,252                   18.7200
Purchase         334                     Transfer
Purchase         10,300                  18.6272
Purchase         268                     18.4700
Purchase         8,266                   18.8200
Purchase         14,246                  18.8200
Purchase         320                     18.6575
Purchase         2,796                   18.8200
Sale             77,442                  18.6431
Sale             800                     18.8000
Sale             2,252                   18.7200
Sale             148,851                 18.6810
Sale             77,367                  18.6599
Sale             500                     18.5669
Sale             109                     18.6235
Sale             334                     Transfer
Sale             2,346                   18.8164
Sale             175                     18.6912
Sale             70                      18.6435
Sale             605                     18.6317
Sale             18,392                  18.7136
Sale             18,236                  18.8200
Sale             685                     18.6512
Sale             17,884                  18.6286
Sale             380                     18.5481
Sale             4,337                   18.7037
Sale             71                      18.5817
Sale             21,155                  18.6707
Sale             380                     18.6612
Sale             54                      18.7235
Sale             13,960                  18.7201
Sale             3,650                   18.6600
Sale             377                     18.4965
Sale             175,263                 18.7004
Sale             438                     Transfer
Sale             5,592                   18.5800
Sale             105                     18.6417
Sale             340                     18.5912
Sale             245                     18.5835
Sale             300                     18.5825
Sale             1,725                   Transfer
Sale             15,740                  18.8200
Sale             653                     18.7281
Sale             2,291                   Transfer
Sale             14,246                  18.8200
Sale             2,796                   18.8200
Sale             196                     18.2917
Sale             1,800                   18.6906
Sale             535                     18.8015
Sale             2,252                   18.7256
Sale             607                     Transfer
Sale             2,000                   18.6912

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          377           18.4964
CFD            Long          500           18.5669
CFD            Long          5592          18.58
CFD            Long          17884         18.6286
CFD            Long          77442         18.6431
CFD            Long          77367         18.6598
CFD            Long          21155         18.6707
CFD            Long          4833          18.6766
CFD            Long          148851        18.681
CFD            Long          24730         18.6833
CFD            Long          1800          18.6905
CFD            Long          175263        18.7004
CFD            Long          13960         18.7201
CFD            Long          653           18.7281
CFD            Long          800           18.8
CFD            Long          2346          18.8164
CFD            Short         96618         18.5528
CFD            Short         10300         18.6271
CFD            Short         28743         18.6489
CFD            Short         12108         18.668
CFD            Short         33769         18.671
CFD            Short         1000          18.6816
CFD            Short         600           18.6831
CFD            Short         162831        18.6858
CFD            Short         137309        18.6865
CFD            Short         377           18.6935
CFD            Short         6419          18.6941
CFD            Short         109255        18.7167
CFD            Short         72289         18.7333

(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                         23 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