Companhia Energética de Brasília - CEB announced earnings results for the first quarter ended March 31, 2021. For the first quarter, the company announced sales was BRL 69.839 million compared to BRL 64.189 million a year ago. Operating income was BRL 1,745.657 million compared to BRL 34.864 million a year ago. Net income was BRL 1,142.200 million compared to net loss of BRL 10.296 million a year ago.