Professional Waste Technology (1999) Public Company Limited announced earnings results for the first quarter ended March 31, 2020. For the first quarter, the company announced total revenue was THB 62.993 million compared to THB 75.373 million a year ago. Operating income was THB 1.451 million compared to THB 12.825 million a year ago. Net loss was THB 1.907 million compared to net income of THB 12.815 million a year ago. Basic loss per share was THB 0.0009 compared to basic earnings per share of THB 0.0063 a year ago.