Tianjin Leading Import & Export Co., Ltd, oo la aasaasay tan iyo 1997. Xirfadlayaasha wax soo saarka iyo dhoofinta dheeha iyo kiimikooyinka la xiriira.Sound iyo nidaamka kaamil ah ee wax soo saarka, R & D, marketing, saadka, iyo technology support. Sumcad wanaagsan in ka badan dalalka 20.Mugga wax-soo-saarka sannadlaha ah ee3000mt Metanil huruud ah, Acid orange II,iyoRN cas cas toos ah.Mid ka mid ah dhoofiyeyaasha ugu sarreeya eeSulfur madow BR iyo midabada sulfurka Shiinaha.