Petro-king Oilfield Services Limited announced earnings results for the half year ended June 30, 2021. For the half year, the company announced sales was HKD 139.415 million compared to HKD 151.950 million a year ago. Operating income was HKD 5.476 million compared to HKD 255,000 a year ago. Net loss was HKD 14.266 million compared to HKD 13.829 million a year ago. Basic loss per share from continuing operations was HKD 0.008 compared to HKD 0.008 a year ago.