Cangzhou Tianyi Chemical Co., Ltd.

[ Manufacturer ]Main business are Aminobenzene-2, 5- ambi-salfacid, M-aminobenzenesulfonic acid, Dia-oxhydryl N, Ndiethyl amidobenzene.

Dezhou Fuxin Chemical Co., Ltd.

[ Manufacturer Trader ]Main business are Dyestuff, Pigment, Intermediate.

Renqiu Shengda Fine Chemical Co., Ltd.

[ Manufacturer ]Main business are M-aminobenzenesulfonic acid