Viskase Companies, Inc. announced earnings results for the first quarter ended March 31, 2021. For the first quarter, the company announced sales was USD 101.285 million compared to USD 98.478 million a year ago. Operating income was USD 8.000 million compared to USD 7.589 million a year ago. Net loss was USD 901,000 compared to USD 3.543 million a year ago.