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               28 March 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       98,723,876     4.47%      5,398,574     0.24%
securities
(2) Derivatives     4,316,307     0.20%      3,363,453     0.15%
(other than
options)
(3) Options and    1,002,450      0.05%        752,775     0.03%
agreements to
purchase/sell
Total             104,042,633     4.71%       9,514,802    0.43%

(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         6,410                   14.8374
Purchase         21,921                  14.9711
Purchase         343,962                 14.9390
Purchase         42,000                  14.7884
Purchase         3,804                   14.8064
Purchase         17,046                  14.7600
Purchase         10,000                  14.7600
Purchase         399                     14.7600
Purchase         650                     15.0375
Purchase         3,796                   14.8254
Purchase         6,840                   14.8163
Purchase         59                      14.7600
Purchase         1,705                   14.7628
Purchase         15,185                  14.8021
Purchase         10,000                  14.8028
Purchase         7,891                   14.7600
Purchase         6,702                   14.7600
Purchase         302                     14.7667
Purchase         221,220                 15.0044
Purchase         21,000                  14.9524
Purchase         9,823                   14.7600
Purchase         1,000                   14.7813
Purchase         25,418                  14.7884
Purchase         1,000                   15.0080
Sale             264                     14.9917
Sale             1,153                   14.8100
Sale             3,131                   14.8000
Sale             1,076                   14.7900
Sale             1,809                   14.8000
Sale             456                     14.8100
Sale             127                     14.8000
Sale             6,012                   14.8051
Sale             1,119                   14.8000
Sale             31,425                  15.0357
Sale             280                     14.8100
Sale             5,217                   14.8136
Sale             51                      14.8000
Sale             895                     14.7900
Sale             980                     14.7900
Sale             500                     14.8100
Sale             187                     14.8100
Sale             468                     14.8000
Sale             650                     14.8000
Sale             269                     14.8100
Sale             647                     14.8341
Sale             1,534                   14.7900
Sale             1,234                   14.8000
Sale             15,000                  14.7972
Sale             291                     14.7900
Sale             139                     14.7900
Sale             4,740                   14.7900
Sale             3,135                   14.7872
Sale             1,528                   14.7900
Sale             312                     14.7900
Sale             714                     14.7900
Sale             849                     14.8000
Sale             650                     14.7900
Sale             600                     14.7900
Sale             103,394                 14.8501
Sale             6,000                   14.7791
Sale             246                     14.7900
Sale             1,660                   14.7900
Sale             38                      14.7900
Sale             650                     14.7900
Sale             1,199                   14.7900
Sale             276                     14.8000
Sale             1,003                   14.7900
Sale             584                     14.7900
Sale             1,118                   14.8000
Sale             1,118                   14.8000
Sale             62                      14.7900
Sale             895                     14.8000
Sale             12,955                  14.8298
Sale             1,140                   14.7800
Sale             413                     14.8100
Sale             1,000                   14.8912
Sale             1,660                   14.8000
Sale             225                     15.1125
Sale             280                     15.0512
Sale             300                     14.9000
Sale             800                     15.0225
Sale             400                     14.9000
Sale             650                     14.9000
Sale             250                     14.9000
Sale             1,207                   14.7600
Sale             150                     15.0225
Sale             88,33                   14.8189
Sale             21                      14.8000
Sale             805                     14.8000
Sale             1,300                   14.7184
Sale             200                     14.9000
Sale             1,000                   14.9000
Sale             54,286                  15.0009
Sale             37,379                  15.0009
Sale             29,801                  14.7600
Sale             400                     15.1225
Sale             700                     14.7712
Sale             575                     14.9000
Sale             585                     14.9000
Sale             2,461                   14.7800
Sale             500                     14.9000
Sale             300                     14.9000
Sale             760                     14.9000
Sale             300                     14.9000
Sale             200                     14.9000
Sale             300                     14.9000
Sale             750                     14.9000
Sale             90                      14.8000
Sale             1,789                   14.8000
Sale             651                     14.8100
Sale             878                     14.8081
Sale             227,621                 14.8382
Sale             619                     14.8000
Sale             300                     14.7900
Sale             650                     14.7700
Sale             1,341                   14.8000
Sale             36,953                  14.5000
Sale             78                      14.7900
Sale             21                      14.7700
Sale             1,119                   14.8000
Sale             500                     14.7900
Sale             1,248                   14.7900
Sale             1,500                   14.7900
Sale             574                     14.7900
Sale             938                     14.7900
Sale             641                     14.7900
Sale             589                     14.8000
Sale             500                     14.7900
Sale             1,300                   14.8000
Sale             1,000                   14.7900
Sale             48,522                  14.7300
Sale             590                     14.8100
Sale             59                      14.7600
Sale             3,804                   14.7900
Sale             2,543                   14.8000
Sale             42,000                  14.7884
Sale             1,119                   14.7900
Sale             2,548                   14.7900
Sale             175                     14.8000
Sale             100                     14.7900

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1300          14.7184
CFD            Long          6000          14.779
CFD            Long          3135          14.7871
CFD            Long          42000         14.7883
CFD            Long          15000         14.7971
CFD            Long          6012          14.8051
CFD            Long          878           14.8081
CFD            Long          5217          14.8136
CFD            Long          88339         14.8189
CFD            Long          227621        14.8382
CFD            Long          103394        14.8501
CFD            Long          31425         15.0356
CFD            Short         1705          14.7628
CFD            Short         1000          14.7813
CFD            Short         10000         14.8028
CFD            Short         3804          14.8064
CFD            Short         6840          14.8162
CFD            Short         3796          14.8253
CFD            Short         6410          14.8374
CFD            Short         343962        14.9389
CFD            Short         21000         14.9523
CFD            Short         21921         14.9711
CFD            Short         221220        15.0043

(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                         31 March 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