A mechanical failure occurred with the drying equipment at a workshop of Binsheng Trading Co. Ltd., in Pengshan County, according to the local government information office.
An explosion flattened parts of the factory building. Two workers, a man and woman, were killed on the spot, and six others injured of which one died in hospital.
Binsheng Trading Co. Ltd. is a private business based in Longmenqiao Village of Pengshan, a county to the southwest of Chengdu, the provincial capital. It is mainly engaged in producing feed additives, and employs over 60 people.