Infomacro won the “Best Completion Project” award at the DoraHacks “Fourth Industrial Revolution” Hackathon WeBank Sub-Competition with its “Customs Clearance System for a Region”, which is based on the transformation of FISCO BCOS’ Customs Clearance and Inspection System for a region. This is a project based on FISCO BCOS to transform the customs clearance and inspection system in a certain region. The project is designed to cover a multi-organization scenario, linking the business of customs clearance, international trade, inspection and supervision in the traditional system through blockchain, effectively solving the problems of slow efficiency, slow buffer, and data islands in the transmission of documents and data among the various organizations in the traditional system, optimizing the process, and making customs tax transparent and traceable. In addition to the good application value, the project realizes a high degree of completion, from the front-end to the back-end, in a short period of 36 hours, realizing the complete full process.