FORM 6-K

FORM 6-K
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549


Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16
of the Securities Exchange Act of 1934


For the month of August 2007

Commission File Number: 001-10306

The Royal Bank of Scotland Group plc

Business House F, Level 2
RBS, Gogarburn, PO Box 1000
Edinburgh EH12 1HQ, DEPOT CODE: 045

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F    X     Form 40-F        

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):_________

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):_________

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes           No    X  

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- ________



The following information was issued as Company announcements, in London, England and is furnished pursuant to General Instruction B to the General Instructions to Form 6-K: ________



15 August 2007 - Publication of Supplementary Documentation

Following the publication of interim results by ABN AMRO and RBS on 30 July 2007
and 3 August 2007 respectively, Fortis, RBS and Santander (collectively, the
"Banks") are today publishing supplementary offer documentation, including the
interim financial statements of RBS and ABN AMRO for the six months to 30 June
2007, which will be available from the Banks.

Copies of the offer documents and of documents incorporated by reference in the
offer documents may be obtained free of charge, subject to the same restrictions
as apply to the offers, by contacting the Dutch exchange agent or the global
information agent at the addresses and telephone numbers below.

The Dutch exchange agent:                    The global information agent:
Fortis Bank (Nederland) N.V.                 D.F. King & Co., Inc.
Rokin 55                                     2 London Wall Buildings, 2nd Floor
1012 KK Amsterdam                            London Wall, London EC2M 5PP
The Netherlands                              United Kingdom
Tel: +31 20 527 24 67                        European Toll Free Help Line: 00 800 5464 5464
                                             48 Wall Street, 22nd Floor
                                             New York, NY 10005
                                             United States
                                             North American Toll Free Help Line: 1 (800) 848 2998



In offer documentation previously published, the Banks stated that the
consideration described in such documentation assumes the payment by ABN AMRO of
an interim (cash or share) dividend in respect of 2007 in an amount not to
exceed EUR0.55 per ABN AMRO ordinary share (before deduction of any applicable
withholding taxes), and that if ABN AMRO declared an interim (cash or share)
dividend in respect of 2007 in excess of EUR0.55 per ABN AMRO ordinary share
(before deduction of any applicable withholding taxes) the consideration may be
reduced by an amount equal to such excess (before deduction of any applicable
withholding taxes).  ABN AMRO has announced that its interim dividend in respect
of 2007 will be EUR0.58 per ABN AMRO ordinary share (before deduction of any
applicable withholding taxes).  The Banks have determined that, despite this
amount being in excess of EUR0.55, the consideration will not be reduced in
respect of such excess.

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Important Information

This announcement is made pursuant to article 9b(1) of the Dutch Decree on the
Supervision of the Securities Trade 1995.

In connection with the offer for ABN AMRO, RBS has filed with the U.S.
Securities and Exchange Commission (the "SEC") a Registration Statement on Form
F-4, which includes a preliminary version of the prospectus, and the Banks have
filed with the SEC a Tender Offer Statement on Schedule TO and other relevant
materials. The Form F-4 has not yet become effective. INVESTORS ARE URGED TO
READ ANY DOCUMENTS REGARDING THE OFFER BECAUSE THEY CONTAIN IMPORTANT
INFORMATION. Investors may obtain a copy of such documents without charge, at
the SEC's website (http://www.sec.gov/). Copies of all documents filed in
connection with the offer may also be obtained from each Bank, without charge.

This communication shall not constitute an offer to sell or the solicitation of
an offer to buy any securities, nor shall there be any sale of securities in any
jurisdiction in which such offer, solicitation or sale would be unlawful prior
to registration or qualification under the securities laws of any such
jurisdiction. This press release is not an offer of securities for sale into the
United States. No offering of securities shall be made in the United States
except pursuant to registration under the U.S. Securities Act of 1933, as
amended, or an exemption therefrom.

Forward-Looking Statements

This announcement includes certain "forward-looking statements". These
statements are based on the current expectations of the Banks and are naturally
subject to uncertainty and changes in certain circumstances.  Forward-looking
statements include any synergy statements and, without limitation, other
statements typically containing words such as "intends", "expects", "anticipates
", "targets", "plans", "estimates" and words of similar import.  By their
nature, forward-looking statements involve risk and uncertainty because they
relate to events and depend on circumstances that will occur in the future.
There are a number of factors that could cause actual results and developments
to differ materially from those expressed or implied by such forward-looking
statements.  These factors include, but are not limited to, the presence of a
competitive offer for ABN AMRO, whether the Banks and ABN AMRO enter into any
definitive agreement with respect to the potential acquisition of ABN AMRO,
satisfaction of any conditions to the offer, including the receipt of required
regulatory and anti-trust approvals, the successful completion of the offer or
any subsequent compulsory acquisition procedure, the anticipated benefits of the
offer (including anticipated synergies) not being realized, the separation and
integration of ABN AMRO and its assets among the Banks being materially delayed
or more costly or difficult than expected, as well as additional factors, such
as changes in economic conditions, changes in the regulatory environment,
fluctuations in interest and exchange rates, the outcome of litigation and
government actions. Other unknown or unpredictable factors could cause actual
results to differ materially from those in the forward-looking statements.  None
of the Banks undertake any obligation to update publicly or revise
forward-looking statements, whether as a result of new information, future
events or otherwise, except to the extent legally required.

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Fortis N.V., Archimedeslaan 6, 3584 BA Utrecht, Netherlands; Fortis S.A./N.V.,
Rue Royale 20, 1000 Brussels, Belgium



The Royal Bank of Scotland Group plc, Head Office, Gogarburn, Edinburgh EH12
1HQ, UK. Registered Office, 36 St Andrew Square, Edinburgh EH2 2YB.  Registered
in Scotland No 45551



Banco Santander, S.A., Ciudad Grupo Santander, Avenida de Cantabria, s/n, 28660
Boadilla del Monte, Madrid, Spain


Signatures



Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



Date:15 August, 2007

  THE ROYAL BANK OF SCOTLAND GROUP plc (Registrant)


  By: /s/ H Campbell

  Name:
Title:
H Campbell
Head of Group Secretariat