COMPANHIA PARANAENSE DE ENERGIA - COPEL Board of Directors Meeting Minutes

The minutes from the 166th Extraordinary Meeting of the Board of Directors of COMPANHIA PARANAENSE DE ENERGIA (COPEL) on May 21, 2026, detail the approval of the 2025 Reference Form, which contains information for shareholders on risk factors, company details, the power sector model, management, dividend distribution, and internal controls. The Board also resolved to approve the Amendment and Renewal of the Share Repurchase Program, originally approved in November 2024 and amended in January 2025, to extend its term and update its scope and maximum number of shares. Additionally, the Board approved the results of the annual evaluation of executives for the 2025 cycle and the Succession Plan for Statutory Executives. The meeting was attended by the Chairman, board members, and the Secretary of Governance. The report was signed by Daniel Pimentel Slaviero, Chief Executive Officer.