Sigdo Koppers S.A. Announced earnings results for the first quarter ended March 31, 2020. For the first quarter, the company announced sales was USD 512.954 million compared to USD 568.508 million a year ago. Operating income was USD 35.316 million compared to USD 50.416 million a year ago. Net income was USD 9.593 million compared to USD 23.522 million a year ago.