TongShun Chemical Co., Ltd is the leading specialty chemical company producing high performance pigments, intermediates and solvent dyes including solvent red (including solvent red 135, solvent red 111, solvent red 23.... ),solvent brown, solvent yellow, solvent black , solvent violet, solvent blue. Through new technology innovations, we are tapping into additional new market opportunities. With about 100 employees, several different production sites, we serve customers and partners in many countries.