Yijinquan natural soda water is located in Kedong County, Qiqihar City, Heilongjiang Province, which is the "hometown of soda water in China". It is a unique natural soda water in China after Japan, the former Soviet Union, France and Germany. The water is deep circulating groundwater, which is located on the erkeshan Jianshan fault zone in Kedong County. It is formed by crustal movement caused by volcanic activity. Kedong natural soda water contains a variety of major and trace elements, which can be drunk directly and has the function of balancing the pH of human body. In March 2012, AQSIQ approved the implementation of geographical indication product protection for Kedong natural soda water.