Profile: Hongsanjin Chemical Engineerring Co., Ltd. produces caustic soda , poly-aluminium chloride and ion-exchange membranes. Our product line includes barium chloride, sodium metasilicate pentahydrate, industrial synthetic hydrochloric acid and poly-aluminium chloride. Our barium chloride is used in cotton reverting dyeing, leather industry, pesticide insecticide, fabric dyeing, mordant, water softener, steam antiscale, papermaking, lake toner and extinction of rayon. Our industrial synthetic hydrochloric acid is used in artificial fiber, dying and pigment producing. We offer sodium hydroxide by a hydronium-film process, which is used in papermaking, soap, textile, printing & dyeing, synthetic fiber, pesticide, petrochemical, pharmacy, food and power industries. We are accredited with ISO 9001 certification.