I-Tangshan Tianhe Environmental Protection Technology Co., Ltd. (Ikhodi Yempahla:871037) iyibhizinisi likazwelonke lobuchwepheshe obuphezulu elasungulwa ngo-2001. Sekuyisikhathi eside lizibandakanya ocwaningweni, ekuthuthukisweni, ekukhuthazeni nasekusetshenzisweni kokulungiswa kwamalahle, izimayini kanye nemvelo. ubuchwepheshe obuhlobene nokuvikela kanye nemishini, futhi uneziqu zesigaba sesibili zokwakha nokufaka.Ibhizinisi eliyinhloko lihlanganisa: ubuchwepheshe bokuchoboza amalahle kanye nemishini, ubuchwepheshe bokumisa izigubhu zemvelo kanye nemishini, ubuchwepheshe bokulawula okuhlakaniphile kanye nemishini, njll.