Fitch Ratings Reaffirms 'AAA(bra)' Rating for Copel and Subsidiaries

Companhia Paranaense de Energia (Copel) filed a Form 6-K reporting that Fitch Ratings reaffirmed the 'AAA(bra)' long-term rating for the company and its wholly-owned subsidiaries Copel Geração e Transmissão S.A., Copel Distribuição S.A., and Copel Serviços S.A. This is the highest possible rating on Fitch's Brazilian scale. The outlook remains stable. Fitch's decision reflects Copel's solid business profile with profitable energy generation, transmission, and distribution assets that help dilute operational and regulatory risks. The rating maintenance reinforces the company's commitment to operational efficiency and disciplined capital allocation aligned with its sustainable strategy. The filing was dated May 15, 2026, and includes forward-looking statements cautioning that future results may differ from expectations.