According to Tian Yan's inquiry, Tongying Youcai Agricultural Science and Technology Co., Ltd., established on 20 18, is located in Datong City, Shanxi Province. It is a one-stop vertical e-commerce platform for purchasing catering ingredients and is committed to building a national quality food supply chain. Strictly control the quality of fermentation suppliers to ensure food safety. At the same time, Tongying Excellent Cuisine has reached strategic cooperation with large domestic production enterprises such as Huiyuan, Zheng Da and Haitian, from the production end directly to the catering terminal to ensure the supply quality. Therefore, the survival of the fittest is formal and safe.