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 December, 2020

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
+55 (41) 3331-4011

(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____

Copel's PNB shares (CPLE6) become part of the Ibovespa portfolio

Companhia Paranaense de Energia - COPEL, a company that generates, transmits, distributes and trade energy, with shares listed on B3 (CPLE3, CPLE5, CPLE6), the NYSE (ELPVY, ELP) and the LATIBEX (XCOP), hereby informs its shareholders and the market in general that the Company's category “B” preferred shares (CPLE6) were included in the theoretical portfolio of Ibovespa, which will come into force in January 04, 2021, with a participation of 0.431%.

Ibovespa is the main performance indicator of the stocks traded in B3 and lists major companies in the Brazilian capital market. Reassessed every four months, it is comprised of stocks and units of companies listed on B3 that meet the criteria described in its methodology, accounting for about 80% of the number of trades and the financial volume of our capital markets. The index will now have 81 assets from 78 companies in total.

Curitiba, December 29, 2020.

Adriano Rudek de Moura

Chief Financial and Investor Relations Officer

For further information, please contact the Investor Relations team:

ri@copel.com or +55 41 3331-4011

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 December 29, 2020

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.