Xiamen YouAidi Network Service Co., Ltd. is the result of the talent introduction project of the provincial party committee government of Fujian Province. The company is located in Rongxinsheng Operation Center of Xiamen Guanyinshan Business District. Youdi is affiliated to Xiamen Xindongsen Group. In 2005, the group began to enter the ranks of the top 100 private enterprises in China and the top 100 enterprises in Fujian.With the help of blockchain and the goal of precise management of waste sorting, Youdii Company takes the operation of the integral mall as the carrier and builds a leading enterprise of U-shaped supply chain wisdom urban and rural integration. With precise management as the soul, the company aims to provide a package of software products and services supported by the commercial chain, and build a waste sorting system and closed-loop operating system, front three-pack system, intelligent access control system (face recognition), rural e-commerce, Accurate poverty alleviation, accurate tax source, anti-counterfeiting traceability, blockchain system, establish a platform system for integrating statistical analysis, query, supervision, sales, accountability, credit management functions, etc., and intelligent intelligence in urban and rural areas. The society provides platform technology and operational services. At the same time, based on the precise management technology, operation system, software technology, and concept advantages, the government and the society are provided with precise urban and rural management, smart government and precise business chain support platform technology and operation services.