we are one of the main china sulphur dyes manufacturer.our factory located in inner mongolia where are rich in natural resources.
our leading products include:sulphur black br 522,sulphur black b 521,sodium thiosulfate,dimethyl disulfide ,sulphur blue,sulphur brown and so on .our supply ability for sulphur black dyes is 30,000mts per year.

we would like to communciate with you further in the future .we trust  that our quality and service will satisfy you if you give us the chance.