Guanghui Energy (SHA:600256) forecasts its attributable profit will soar 795% to 858% year over year to between 1.42 billion yuan and 1.52 billion yuan in the third quarter, according to a Friday filing with the Shanghai bourse.

The rise is attributable to operational improvements following the overhaul of coal chemical processing units.

Attributable profit for the first three quarters could jump between 167% to 177% year over year to between 2.70 billion yuan and 2.80 billion yuan in the first three quarters.

The energy development company's shares rose 6% during afternoon trading on Friday.