Longyongchem specializes in dye and dye intermediate and pharmaceutical intermediate manufaturing, R&D and custom synthesis.
Our Company established a stable and intimate cooperation with WENZHOU INSTITUTE OF INDUSTRY & SCIENCE RESEARCH, Zhejiang University and East China Normal University, which has LED us gain rich experiences for new products development and processes amelioration. Taking advantage of local resources and with our Tech support, our plants in Henan and Zhejiang provide our clients competitive products in both domestic and international market.