Grand Plastic Technology Corporation announced earnings results for the first quarter ended March 31, 2019. For the first quarter, the company announced sales was TWD 403.557 million compared to TWD 382.328 million a year ago. Operating income was TWD 76.414 million compared to TWD 74.048 million a year ago. Net income was TWD 61.207 million compared to TWD 59.662 million a year ago. Basic earnings per share was TWD 2.35 compared to TWD 2.42 a year ago. Diluted earnings per share was TWD 2.33 compared to TWD 2.39 a year ago.