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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
FORM 6-K
 
REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF THE
SECURITIES EXCHANGE ACT OF 1934
 
THROUGH May 31, 2007

(Commission File No. 1-14477)
 
 
BRASIL TELECOM PARTICIPAÇÕES S.A.
(Exact name of registrant as specified in its charter)
 
BRAZIL TELECOM HOLDING COMPANY
(Translation of Registrant's name into English)
 

SIA Sul, Área de Serviços Públicos, Lote D, Bloco B
Brasília, D.F., 71.215-000
Federative Republic of Brazil
(Address of Regristrant's principal executive offices)


Indicate by check mark whether the registrant files or will file
annual reports under cover 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, indicated below the file number assigned to the
registrant in connection with Rule 12g3-2(b):

 




  Investor Relations 
  (55 61) 3415-1140 
  ri@brasiltelecom.com.br
   
  Media Relations 
  (55 61) 3415-1378 
  cesarb@brasiltelecom.com.br

Free Translation

BRASIL TELECOM PARTICIPAÇÕES S.A.
PUBLICY HELD COMPANY
Corporate Taxpayer Registration 02.570.688/0001 -70
Board of Trade 53 3 0000581 8

NOTICE TO SHAREHOLDERS

SHARE GROUPINHG

Brasil Telecom Participações S.A. (the "Company"), in additional to the Material Fact released on March 08, 2007 and Notice to Shareholders released on April 27,2007, concerning the share grouping proposal of its shares, inform that, the transfer in the over-the-counter market of shares issued by the Company, as well as the blocking of transfers of shares through the OTA (Order for Transfer of Shares) at the depositary financial institution (Banco ABN AMRO - Real S.A.) by a broker, shall be suspended between June 1, 2007 and June 8, 2007, inclusive.

Trading on the stock exchanges of the shares issued by the Company will not be interrupted

Brazil, Brasília, May 30, 2007.

Paulo Narcélio Simões Amaral
Investor Relations Officer
Brasil Telecom Participações S.A.


Page 1 of 1
 
SIGNATURE
 
 
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: May 31, 2007

 
BRASIL TELECOM PARTICIPAÇÕES S.A.
By:
/S/ Paulo Narcélio Simões Amaral
 
Name:  Paulo Narcélio Simões Amaral
Title:     Chief Financial Officer
 

 

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates offuture economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.