Tianjin Chengyuan Chemical Co., LTD was registered in Tianjin port free trade zone located in the Tianjin, the largest port and trading city in northern of China. It is located in Bohai sea shore and only 5 kilometers far away from Xingang Port and 15 kilometers from Tianjin international airport. So the transportation is convenient, which provides convenient conditions for our company business development! Tianjin Chengyuan Chemical Co., LTD. is a chemical enterprise that mainly processes and sales 96% ã98% ã99% percents of industrial-class ionic membrane caustic soda whose chemical name is sodium hydroxide. Caustic soda including caustic soda flakes ãcaustic soda pearls ãcaustic soda solid is one kind of based alkaline chemical raw materials and is widely used in much field such as OilãChemicalãPaper-makingãMetallurgy, Electroplatingã Printing ãTextile and so on. Our company produces the industrial-class ionic membrane caustic soda mainly including caustic soda flakes (96%, 99%), caustic soda solid (96%-99%) and caustic soda pearl(96%ã99%) favored deeply by the international market and domestic fine chemical fields . Our company strictly follows the national standards GB209 (2006) to produce caustic soda and export products having qualitative organization (CIQ and SGS, BV) test. Our company establishes long-term cooperation relations with Inner Mongolia, Xinjiang, Shanxi, Gansu and Sichuan provincesâ production enterprises who product many kinds of sodium sulphide products : low iron sodium sulphide (yellow flakes Na2S 60% Fe 1ppm 5ppm 10ppm 15ppm 20ppm 30ppm 50ppm 80ppm 120ppm 150ppm)ãsodium sulphide (red flakesãsolidãpearl Na2S 60%Fe 1500ppm) ãsodium sulphide anhydrous ï¼Na2S 90 %ãï½ 92 %ï¼ãsodium sulphide crystalï¼ Na2S 42 %ï¼My company also sells Sodium sulfideãAmmonium chlorideã Ammonium sulfateã Ammonium bicarbonateã Sodium nitrate and other chemical products.