Guanghui Energy (SHA:600256) posted first-half attributable net profit of 1.28 billion yuan, up 50% from 853.3 million yuan the previous year.
Earnings per share rose to 0.2000 yuan from 0.1302 yuan, according to a Friday filing with the Shanghai bourse.
Operating revenue declined 9.6% year over year to 14.2 billion yuan from 15.7 billion yuan.
Shares of the energy company closed 2% higher Friday.