We are chongqing tianpan chemicals Co., Ltd. Which is a specialized manufacturer of sodium sulphate anhydrous and sodium sulphide. Also we can provide phosphates salts too. Our tenet is "quality first, credit priority, excellent service". Our products now have been well-received in China, southeast Asia, the Middle East and EU; And our products also have been highly appraised by our customers for good quality and good price. We are always here waiting for your detailed inquiry.