Honggang Chemicals is national hi-tech enterprise to develop and produce perylene pigments and their intermediates since 2011. The production lines of 1,8-NSA (3000mt/y); 3,4,9,10-PerAcid (1500mt/y); Pigment Black 32 (300mt/y); Pigment Red 149 (300mt/y) and Pigment Red 179 (200mt/y) already have been the largest production base in China. We also produce Pigment Red 123; Pigment Black 31; Pigment Violet 29; Pigment Red 190; 1,8-Naphthostyril and Perylene. The company passed the ISO 9001:2015 quality management systems, ISO 14001:2015 Environmental management systems and ISO 45001:2018 Occupational health and safety management systems in 2022,