Tong Petrotech Corp. announced earnings results for the first quarter ended March 31, 2021. For the first quarter, the company announced sales was CNY 184.677 million compared to CNY 212.259 million a year ago. Operating income was CNY 2.173 million compared to operating loss of CNY 21.520 million a year ago. Net income was CNY 6.333 million compared to net loss of CNY 16.340 million a year ago. Basic earnings per share from continuing operations was CNY 0.0123 compared to basic loss per share from continuing operations of CNY 0.0332 a year ago. Diluted earnings per share from continuing operations was CNY 0.0123 compared to diluted loss per share from continuing operations of CNY 0.0329 a year ago.