Tianhai relies on the abundant natural resources of the glauberite mines and uses the most advanced domestic production technology to produce the "tianhai" brand of superior glaubers salt based on the national standard GB/T6009-2003. The product has been received well by both domestic and overseas customers with its attributes of high purity, good color/whiteness and stable mass. The products are packaged in inner-lined plastic with outer weaved 25kg, 50kg, 1000kg and numerous other packaging specifications. We have set up export storage warehouse in Zhenjiang Port and Lianyungang Port of Jiangsu Province as well as Tianjin port. We also have estanblished a branch in Austrilia for world market. TypesState Crieria(GB/T6009-2003)Internal Control Quality Standard of the Company2008 Product QualityClassI Grade IClassII Grade ISodium sulfate(%)≥99.0≥98.0≥99.199.3Water-incompatible solution(%)≤0.05≤0.10≤0.050.01Calcium,magnesium(count Mg)(%)≤0.15≤0.30≤0.080.0075Chloride(count CL)(%)≤0.35≤0.70≤0.250.25Iron(%)≤0.002≤0.01≤0.0010.0003Moisture content(%)≤0.20≤0.50≤0.050.03Whiteness≥82.0----≥85.088PH---------------------6.48