Wantong soy sauce is an old brand with a history of nearly a hundred years. Because the brand awareness is not strong, it was taken off the shelf by foreign companies and could not be bought. Wantong Sauce Garden was originally a brewery founded by Shaoxing people in Qingdao, mainly producing soy sauce and rice vinegar. In the 1940s, the Gaos opened semicolons in Xuzhou and Jiaxing.