Soda ash light Our factory tianjin kaiyi chemical factory is one of exporters and biggest manufacture factory from china, we are leading producing caustic soda, which production is about more than 60000mts in one year, we built at 1997, we also produce soda ash , sodium bicarbonate, sodium sulphate, ferrous sulphate, calcium chloride, magnesium sulphate, silica fume, pvc resin , magnesium chloride, indigo granular powder, aluminum sulphate, calcium hypochlorite, barium hydroxide, barium chlorid, sodium sulphide, manganese sulphate, sodium benzoate, zinc sulphate, sodium metabisulphite, ferromolybdenum, ferrous sulphate and so on. We produce about more than 8000mts in one month for caustic soda. 40kg or 50kg/woven bag with plastic bag, or according to buyers' requests