SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

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 1-14668

COMPANHIA PARANAENSE DE ENERGIA

(Exact name of registrant as specified in its charter)

Energy Company of Paraná

(Translation of Registrant's name into English)

Rua Coronel Dulcídio, 800
80420-170 Curitiba, Paraná
Federative Republic of Brazil
(5541) 322-3535

(Address of 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 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____

NOTICE TO THE MARKET

Companhia Paranaense de Energia - Copel informs its shareholders and the market that in the period from June 6, 2007 to July 25, 2007, 48,435 ungrouped registered preferred class A shares (PNA) were converted into ungrouped registered preferred class B shares (PNB), according to the prerogative in paragraph one, article seven of the Company’s Bylaws.

In light of the resolutions taken at the 169^th Extraordinary Shareholders’ Meeting of July 2, 2007 on the grouping of all the shares issued by the Company, we reiterate that the period in which shareholders may, at their sole discretion, adjust their shareholding position, per type and class, in lots of 1,000, by trading on the Bovespa via their favorite brokerage house, expires on August 3^rd, 2007 and that as of August 6, 2007 (including), the Company’s shares will only be traded grouped and quoted in Reais (R$) per share.

Article 4 of the Company’s Bylaws (already grouped) will thus be worded as follows:

“Art. 4 – The paid-in capital stock is R$4,460,000,000.00 (four billion, four hundred and sixty million reais), represented by 273,655,375 (two hundred seventy three million, six hundred fifty-five thousand, three hundred seventy-five) shares with no par value, 145,031,080 (one hundred forty-five million, thirty one thousand and eighty) of which common and 128,624,295 (one hundred twenty-eight million, six hundred twenty-four thousand, two hundred ninety-five) preferred, 399,199 (three hundred ninety-nine thousand, one hundred ninety-nine) of which are class “A” shares and 128,225,096 (one hundred twenty eight million, two hundred twenty-five thousand and ninety-six) class “B” shares.”

Curitiba, August 2, 2007.

     Luiz Antonio Rossafa
Chief Corporate Management
Officer currently serving as
Investor Relations Officer

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: August 22, 2007

COMPANHIA PARANAENSE DE ENERGIA – COPEL
By:	/S/  Rubens Ghilardi
	Rubens Ghilardi CEO

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 of future 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.