Rule 8.3- BHP Billiton PLC

Royal Bank of Scotland Group PLC
01 February 2008


                                                                        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 (Note 1)                          Royal Bank of Scotland
                                                         Group Plc

Company dealt in                                         BHP Billiton Plc

Class of relevant security to which the dealings being   ORD USD 0.50
disclosed relate (Note 2)

Date of dealing                                          31 January 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 securities          23,640,417    (1.0589%) 1, 097,306    (0.0491%)
(2) Derivatives (other than
options)                             22,880    (0.0010%)    185,086    (0.0083%)
(3) Options and agreements to
purchase/sell                     3,073,000    (0.1376%)  3,960,000    (0.1773%)
                       Total     26,736,297    (1.1975%)  5,242,392    (0.2347%)



(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)

          Class of relevant security:                  Long            Short
                                                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 (Note 5)
Purchase                               2,096   14.3500 GBP
Purchase                               2,096   14.4400 GBP
Purchase                               2,096   14.4600 GBP
Purchase                               2,095   14.5500 GBP
Purchase                               2,096   14.5600 GBP
Purchase                               2,095   14.5800 GBP
Purchase                               2,096   14.5900 GBP
Purchase                               2,996   14.6600 GBP
Purchase                               4,190   14.6700 GBP
Purchase                             105,797   14.7500 GBP
Purchase                               8,089   14.7700 GBP
Purchase                               4,000   14.8200 GBP
Purchase                               5,000   14.5940 GBP
Purchase                               5,000   14.3730 GBP
Purchase                             197,684   14.3630 GBP
Purchase                               5,000   14.8000 GBP
Sale                                     900   14.6600 GBP
Sale                                 200,000   14.7600 GBP
Sale                                   8,089   14.7700 GBP
Sale                                   5,000   14.7500 GBP
Sale                                   5,000   14.7100 GBP
Sale                                   4,000   14.6250 GBP
Sale                                   5,000   14.5200 GBP
Sale                                   1,585   14.3400 GBP

(b)               Derivatives transactions (other than options)
Product      Long/short (Note   Number of securities (Note Price per unit (Note
name,        6)                 7)                         5)
e.g. CFD
Jun 2009
Call         Short                                   200   0.4500 EUR
Warrant

(c)                Options transactions in respect of existing securities


(i)                  Writing, selling, purchasing or varying

Product Writing,       Number of          Exercise Type, e.g.  Expiry Option
name,   selling,       securities to               American,          money
        purchasing,    which the option            European
        varying etc.   relates (Note 7)            etc.
e.g.                                      price                date   paid/
call                                                                  received
option                                                                per unit
                                                                      (Note 5)
Mar
2008    Purchasing              750,000   12.0000  American    20 Mar 23.0000
Put                                       GBP                  2008   GBP
Option


(ii) Exercising

Product name, e.g. call       Number of           Exercise price per unit (Note
option                        securities          5)

(d) Other dealings (including new securities) (Note 4)
Nature of transaction (Note 8)  Details  Price per unit (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.




Is a Supplemental Form 8 attached? (Note 9) YES/NO



Date of disclosure                                             1 February 2008

Contact name                                                   Richard Hopkins

Telephone number                                               [phone]

If a connected EFM, name of offeree/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 Written   Number of securities to     Exercise    Type, e.g.      Expiry
name,   or        which the option or         price (Note American,       date
        purchased derivative relates          2)          European etc.
e.g.
call
option
Mar
2008    Purchased                   250,000   18.000 GBP  American        20 Mar
Call                                                                      2008
Option
Mar
2008    Written                     250,000   19.000 GBP  American        20 Mar
Call                                                                      2008
Option
Mar
2008    Purchase                    750,000   12.0000 GBP American        20 Mar
Put                                                                       2008
Option
Jun
2008    Written                      25,000   12.000 GBP  American        20 Jun
Put                                                                       2008
Option
Jun
2008    Written                     160,000   13.000 GBP  American        20 Jun
Put                                                                       2008
Option
Mar
2008    Written                     178,000   13.000 GBP  American        20 Mar
Put                                                                       2008
Option
Mar     Written                     500,000   15.000 GBP  American        20 Mar
2008                                                                      2008
Call
Apr     Written                     110,000   9.850 GBP   American        11 Apr
2008                                                                      2008
Put
Mar     Written                     350,000   15.00 GBP   American        20 Mar
2008                                                                      2008
Call
Apr     Purchased                   110,000   9.850 GBP   American        11 Apr
2008                                                                      2008
Put
Mar     Written                   1,000,000   25.000 GBP  American        20 Mar
2008                                                                      2008
Call
Mar     Purchased                   500,000   15.000 GBP  American        20 Mar
2008                                                                      2008
Call
Mar     Purchased                   350,000   15.000 GBP  American        20 Mar
2008                                                                      2008
Call
Mar     Written                     500,000   10.000 GBP  American        20 Mar
2008                                                                      2008
Put
Mar     Written                     500,000   9.000 GBP   American        20 Mar
2008                                                                      2008
Put
Mar     Purchased                 1,000,000   15.000 GBP  American        20 Mar
2008                                                                      2008
Put
Mar     Purchased                   500,000   9.000 GBP   American        20 Mar
2008                                                                      2008
Put


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



                                                                        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 (Note 1)                          Royal Bank of Scotland
                                                         Group Plc

Company dealt in                                         BHP Billiton Ltd

Class of relevant security to which the dealings being   Ordinary
disclosed relate (Note 2)

Date of dealing                                          31 January 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 securities          878,043      (0.0261%)   4,814,563    (0.1433%)
(2) Derivatives (other than
options)                               0         (0.0%)           0       (0.0%)
(3) Options and agreements to
purchase/sell                          0         (0.0%)           0       (0.0%)
                      Total      878,043      (0.0261%)   4,814,563    (0.1433%)



(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)

          Class of relevant security:                  Long            Short
                                                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 (Note 5)
Purchase                             200,000   36.60 AUD

(b) Derivatives transactions (other than options)
Product      Long/short (Note   Number of securities (Note Price per unit (Note
name,        6)                 7)                         5)
e.g. CFD



(c) Options transactions in respect of existing Purchase

securities

(i) Writing, selling, purchasing or varying
Product Writing,       Number of          Exercise Type, e.g.  Expiry Option
name,   selling,       securities to               American,          money
        purchasing,    which the option            European
        varying etc.   relates (Note 7)            etc.
e.g.                                      price                date   paid/
call                                                                  received
option                                                                per unit
                                                                      (Note 5)



(ii) Exercising

Product name, e.g. call       Number of           Exercise price per unit (Note
option                        securities          5)

(d) Other dealings (including new securities) (Note 4)

Nature of transaction (Note 8)  Details  Price per unit (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.

Is a Supplemental Form 8 attached? (Note 9) YES/NO

Date of disclosure                                             1 February 2008

Contact name                                                   Richard Hopkins

Telephone number                                               [phone]

If a connected EFM, name of offeree/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



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