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               16 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       99,503,957     4.51%      4,304,170     0.20%
securities
(2) Derivatives     4,428,528     0.20%      3,350,185     0.15%
options)
(3) Options and     1,002,450     0.05%        752,775     0.03%
agreements to
purchase/sell
Total             104,934,935     4.75%      8,407,130     0.38%

(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         26,030                  18.0401
Purchase         58                      18.1183
Purchase         38                      18.1083
Purchase         4,831                   17.9700
Purchase         1,015                   18.1384
Purchase         159,951                 18.0468
Purchase         56,927                  18.0960
Purchase         23,770                  18.0313
Purchase         8,775                   18.1536
Purchase         60,000                  18.6500
Purchase         1,480                   18.4488
Purchase         8,001                   18.6500
Purchase         9,009                   18.2046
Purchase         103,428                 17.7000
Sale             197                     Transfer
Sale             89,000                  18.5741
Sale             39,838                  17.9274
Sale             70,000                  18.6339
Sale             2,687                   18.6500
Sale             361,818                 18.2860
Sale             145                     18.4217
Sale             27,746                  18.0655
Sale             37,700                  18.0730
Sale             7,000                   18.6472
Sale             145                     Transfer
Sale             20,366                  18.6472
Sale             4,000                   18.0566
Sale             14,886                  18.0430
Sale             8,001                   18.6500
Sale             222                     18.6500
Sale             44,649                  17.7000
Sale             432                     17.9912
Sale             200                     18.5225
Sale             3,500                   18.3053
Sale             400                     17.9830
Sale             19,140                  18.0212
Sale             3,200                   18.0531
Sale             232,405                 18.1252
Sale             87                      Transfer
Sale             5,415                   18.6465
Sale             126                     Transfer
Sale             524,361                 18.2316
Sale             32,348                  18.6500

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          39838         17.9273
CFD            Long          19140         18.0212
CFD            Long          14886         18.0429
CFD            Long          3200          18.0531
CFD            Long          4000          18.0565
CFD            Long          27746         18.0655
CFD            Long          37700         18.0729
CFD            Long          232405        18.1252
CFD            Long          524361        18.2315
CFD            Long          361818        18.286
CFD            Long          3500          18.3053
CFD            Long          89000         18.574
CFD            Long          70000         18.6339
CFD            Long          5415          18.6464
CFD            Long          27366         18.6472
CFD            Short         4831          17.97
CFD            Short         23770         18.0313
CFD            Short         26030         18.04
CFD            Short         159951        18.0468
CFD            Short         56927         18.096
CFD            Short         8775          18.1535

(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                         17 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                    1,500.0000       EURO           18/12/2009
Option            Purchased   250                    1,500.0000       EURO           18/12/2009
Option            Purchased   250                    1,700.0000       EURO           19/12/2008
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