Companhia Paranaense De EnergiaBMFBOVESPA: CPLE3

Notice to the Market 02/26 - Resignation of Member of the Board of Directors

· Issued by Companhia Paranaense de Energia




NOTICE TO THE MARKET | 01/26 COMPANHIA PARANAENSE DE ENERGIA - COPEL

CNPJ/ME 76.483.817/0001-20 - NIRE 41300036535 - CVM Registration 1431-1 B3 (CPLE3)

NYSE (ELPC) LATIBEX (XCOPO)

Resignation of Member of the Board of Directors

Companhia Paranaense de Energia - Copel ("Copel" or "Company") hereby informs its shareholders, investors, and the market in general that on January 7, 2026, it received a letter of resignation from Mr. Augusto Cezar Tavares Baião from his position as an independent member of the Company's Board of Directors, effective as of today.

The resignation stems from a personal and professional decision by the director, motivated by the assumption of new responsibilities outside the Copel Group.

Mr. Augusto Cezar Tavares Baião had been a member of the Board of Directors since April 2025. The Company expresses its gratitude for his contributions and dedication throughout his term.

Copel also informs that it will take the appropriate governance measures to recompose the Board of Directors, in accordance with its Bylaws and applicable legislation.

Curitiba, January 8, 2026

Felipe Gutterres

Vice-President of Financial and Investor Relations

For further information, please contact the Investor Relations team: ri@copel.com or (41) 3331-4011

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