Trisul S.A. Announced earnings results for the first quarter ended March 31, 2021. For the first quarter, the company announced total revenue was BRL 202.210 million compared to BRL 171.298 million a year ago. Operating income was BRL 45.506 million compared to BRL 35.211 million a year ago. Net income was BRL 35.098 million compared to BRL 31.061 million a year ago.