... a group including chemical plant, silicon plant, silica hydrated plant, international trading company, private sea port. And next year, our ... , Hanglass, OCI and so on.Tangshan Sunfar Silicon Industry Co., Ltd. with SiHCL3 output 120000MT and KOH 150000MT which are ... between Tangshan Sunfar Silicon and OCI (SK).Tangshan Sanyou International Industry Co., Ltd is one of the biggest trading companies in ...