Our company is located in the coastal city of Longkou, Shandong Province, the company mainly to power plant by-product desulfurization gypsum as raw materials, the use of power plant steam to calcined it, the production of desulfurization building gypsum, used in the production of building materials and mine filling cement; The company uses ferrous sulfate produced by "Longkou Daen Titanium Industry" sulfuric acid process to produce titanium dioxide as raw materials, which is dried, and the products are used in purifying sewage, producing chemical fertilizers, reducing harmful hexavalent chromium in cement, and new energy lithium iron phosphate batteries.