Tianjin Port Free Trade Zone Shangshun International Trade Co., Ltd. was founded in 2007, located in Tianjin Binhai Newly Developed Area. We are a private enterprise integrating production and trade together.Our company is engaged in the import and export of precipitated barium sulfate, barium carbonate, strontium carbonate, barium chloride, barium nitrate, strontium nitrate and thiourea, zinc oxide, sodium sulfide and sodium silicate.Our company provides high quality products and considerate service for every customer.