6-K

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 November, 2025

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)

José Izidoro Biazetto, 15881200-240 Curitiba, ParanáFederative 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____

COMPANHIA PARANAENSE DE ENERGIA – COPEL

CNPJ/ME 76.483.817/0001-20 – NIRE 41300036535 – Registro CVM 1431-1

B3 (CPLE3, CPLE5)

NYSE (ELP, ELPC)

LATIBEX (XCOPA, XCOPO)

Interest on Equity Distribution

COPEL (“Company”) hereby informs its shareholders and the market in general that its Board of Directors has approved, on this date, the payment of interest on equity (“IoE”) in the amount of R$ 1.1 billion, related to Interest on Equity (“IoE”), based on the net income for the current fiscal year, calculated in the financial information for June 30, 2025.

The payment of the proceeds will be made on January 19, 2026, considering the shareholding position registered at the end of December 30, 2025 (“record date”), and the shares will be traded “ex-dividend date” as of January 2, 2026.

The Company clarifies that, exceptionally in this fiscal year, due to the migration process to the Novo Mercado, the payment of IoE will be made at the beginning of the subsequent fiscal year (2026).

For more information, access Notice to Shareholders 08/25.

Curitiba, November 18, 2025

Felipe Gutterres

Vice-President of Financial and Investor Relations

For further information, please contact the Investor Relations team:

[email protected] or (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 November 18, 2025

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.