Prime Oil Chemical Service Corporation announced earnings results for the first quarter ended March 31, 2021. For the first quarter, the company announced sales was TWD 133.589 million compared to TWD 117.190 million a year ago. Operating income was TWD 33.367 million compared to TWD 33.487 million a year ago. Net income was TWD 40.074 million compared to TWD 27.692 million a year ago. Basic earnings per share was TWD 0.58 compared to TWD 0.4 a year ago. Diluted earnings per share was TWD 0.58 compared to TWD 0.39 a year ago.