Qingye Energy signed a service contract with CNOOC Ningbo Daxie Petrochemical Co., Ltd. for oily sludge reduction treatment in Daxie Petrochemical Plant, using the sludge drying system for oily sludge reduction treatment, with a service period of 5 years.  The project was put into operation in January 2017. Up to now, the equipment has been in continuous operation for 36 months.  The equipment has operated stably since it was put into operation. Under the feed condition that the sludge moisture content is less than 85%, the average moisture content of dried sludge is less than 30%, which meets the requirements of the technical agreement.