Test Research, Inc. announced earnings results for the full year ended December 31, 2020. For the full year, the company announced sales was TWD 4,950.695 million compared to TWD 4,386.806 million a year ago. Operating income was TWD 1,437.325 million compared to TWD 1,196.514 million a year ago. Net income was TWD 1,092.656 million compared to TWD 938.698 million a year ago. Basic earnings per share was TWD 4.63 compared to TWD 3.97 a year ago. Diluted earnings per share was TWD 4.62 compared to TWD 3.96 a year ago.