We would like to introduce our companies âAsathio chemical Vietnam co.,ltdâ produce and supply Japanese Sulr Dyes and Dyeing Auxiliaries in Viet Nam market . (All items 100% made in Japan) Our Sulr Dyes are useable Yarn Dyeing, Fabric Dyeing and Garment Dyeing for mainly Cotton, Rayon, nylon and Leather materials and NYLON Synthetic Leather as well. If use our Japanese Sulr Dyes and our special Reducing Agent âASAHI RETERGENâ (I/O Na2S SODIUM SULFIDE), WE CAN GUARUNTEE 100% ECO-FRIENDLY Because of if using our special reducing agent âASAHI RETERGENâ, HYDROGEN SULFIDE GAS is not generated. And also if using it, you can improve COD & BOD.