China's Sinopec shuts plants for environmental checks
The two refineries are Sinopec Guangzhou Petrochemical Corp and Sinopec Dongxing refinery, with a combined crude processing capacity of 370,000 barrels per day (bpd).
Sinopec announced the order late on Wednesday after Chinese state television reported the plants, which also includes a small petrochemical plant, had environmental problems.
Sinopec did not specify the problems at the plants or the length of the shutdown.
(Reporting by Chen Aizhu and Xu Wan; Editing by Ed Davies)