ʻO Tianjin Leading Import & Export Co., Ltd., i hoʻokumu ʻia mai ka makahiki 1997, ʻo ia kekahi o nā mea hoʻolako honua ʻoihana o nā dyes a me nā puaʻa, i hoʻohana nui ʻia i ka ʻoihana textile, ʻili, pepa, lāʻau, plastic, coating, ceramic, detergent. , mea hoʻonaninani, metala, ʻaila, a me ka mahiʻai.Maikaʻi, kā mākou hana i ka Manufacture, R&D, a me Marketing of textile dyes and Textile auxiliaries.He aha hou aku,Ua hala kā mākou hui i ka palapala ZDHC Level 3 o ka sulfur black BR ​​ma 2022.