Tianjin Leading Import & Export Co., Ltd., na faavaeina talu mai le 1997, o se tasi o tagata tomai faapitoa i le lalolagi o loʻo tuʻuina atu vali ma pigments, lea e masani ona faʻaaogaina i le alamanuia o ie, paʻu, pepa, laupapa, palasitika, faʻapipiʻi, ceramic, detergent. , mea teuteu, uamea, suauu, ma faatoaga.Aemaise lava, matou te taulaʻi atu a matou galuega i le Gaosiina, R&D, ma le Maketiina o vali 'ie ma 'auxiliary textile.E le gata i lea,Na pasia e le matou kamupani le tusipasi ZDHC Level 3 o le sulfur black BR ​​i le 2022.