INNUOVO CHEM-DYE CO., HENGDIAN GROUP is specialized in the development of dyes including sulfur dyes and acid dyes. Among them, sulfur dyes have around dozens of varieties, and the annual output of sulfur black has reached over 20,000 metric tons.

INNUOVO GREEN ELECTROCHEMISTRY CO., LTD., HENGDIAN GROUP is founded by INNUOVO CHEM-DYE CO., LTD., HENGDIAN GROUP in May 2007, with an investment of 50 million RMB.