Qingdao Hisea Chem Co.,Ltd which located in the northwest of China is the largest salt in China, potassium chemicals production ranked fourth in the world. The main products are potassium sulphate, potassium nitrate, potassium hydroxide, caustic soda, sodium sulfide,sodium carbonate, annual production capacity is 6,000,000 tons. In order to increase product export,our company sets up the branch and the construction of the logistics center in Qingdao port , welcome general customers come to visit.