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               10 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      100,029,080     4.53%      3,624,753     0.16%
securities
(2) Derivatives     3,572,285     0.16%      3,374,491     0.15%
options)
(3) Options and     1,002,450     0.05%        752,775     0.03%
agreements to
purchase/sell
Total             104,603,815     4.74%       7,752,019    0.35%

(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         4,803                   17.4520
Purchase         31,866                  17.4597
Purchase         200                     17.3529
Purchase         21,950                  17.3438
Purchase         226,030                 17.4935
Purchase         120,000                 17.6806
Purchase         13,500                  17.2969
Purchase         36,400                  17.4845
Purchase         21,606                  17.5826
Purchase         120,000                 17.6806
Purchase         124                     Transfer
Purchase         6,800                   17.3274
Purchase         137                     Transfer
Purchase         106                     Transfer
Purchase         16,395                  17.4338
Purchase         215                     Transfer
Purchase         203,352                 17.4757
Purchase         25,000                  17.5800
Purchase         300                     17.3229
Purchase         397,194                 17.3792
Purchase         550                     17.6988
Purchase         55,492                  18.0400
Purchase         1,750                   17.4500
Purchase         1,709                   17.2726
Purchase         207,897                 18.0400
Purchase         1,072                   17.3786
Purchase         40,613                  17.6914
Purchase         77,000                  18.0400
Purchase         21,033                  17.4632
Purchase         382,717                 17.4107
Purchase         17,054                  17.5800
Purchase         18,748                  17.5075
Purchase         5,544                   17.5800
Sale             2,170                   17.6666
Sale             88,522                  17.3697
Sale             117                     17.4617
Sale             120,000                 17.6806
Sale             7,400                   15.5300
Sale             20,771                  17.3450
Sale             12,200                  17.6798
Sale             137                     Transfer
Sale             9,900                   17.5410
Sale             124                     Transfer
Sale             45,423                  17.2800
Sale             33,900                  17.5428
Sale             275                     17.5112
Sale             17,170                  17.3891
Sale             207,897                 18.0400
Sale             4,435                   17.2600
Sale             207,897                 18.0400
Sale             175                     17.7317
Sale             78                      17.3417
Sale             400                     17.4512
Sale             500                     17.3012
Sale             200                     17.3112
Sale             500                     17.7412
Sale             15,141                  17.2800
Sale             500                     17.5112
Sale             435                     15.5535
Sale             24,052                  17.5800
Sale             7,146                   17.3450
Sale             15,875                  17.5048
Sale             176,642                 17.4089
Sale             14,100                  17.3370
Sale             55,492                  18.0400
Sale             27,729                  17.4676
Sale             50,000                  17.3575
Sale             15,557                  17.4692
Sale             106                     Transfer
Sale             750                     17.3725

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          14100         17.337
CFD            Long          50000         17.3575
CFD            Long          88522         17.3697
CFD            Long          17170         17.3891
CFD            Long          51238         17.4054
CFD            Long          176642        17.4088
CFD            Long          27729         17.4676
CFD            Long          15557         17.4692
CFD            Long          15875         17.5047
CFD            Long          9900          17.541
CFD            Long          2170          17.6665
CFD            Long          12200         17.6798
CFD            Short         1709          17.2725
CFD            Short         13500         17.2969
CFD            Short         300           17.3229
CFD            Short         6800          17.3273
CFD            Short         21950         17.3438
CFD            Short         200           17.3529
CFD            Short         397194        17.3791
CFD            Short         382717        17.4106
CFD            Short         16395         17.4337
CFD            Short         4803          17.452
CFD            Short         31866         17.4597
CFD            Short         21033         17.4631
CFD            Short         203352        17.4757
CFD            Short         36400         17.4845
CFD            Short         226030        17.4934
CFD            Short         21606         17.5826
CFD            Short         120000        17.6805
CFD            Short         40613         17.6913

(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                         11 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