Core Points - Shanghai Customs launched the first batch of "Efficient Completion of One Thing" projects to enhance the efficiency of customs services for enterprises and the public [1][4] - The initiative includes three online application projects aimed at improving the intelligent level of customs operations [1] Group 1: Customs Services - The "Customs Declaration Modification and Cancellation" service utilizes blockchain-based DID digital identity authentication, allowing companies to initiate modifications online, reducing processing time from 1.5 working days to under 6 hours [2] - The "Tax Refund for Overseas Tourists" service introduces measures like "packaging and coding" and "self-service verification" to expedite tax refund processes, enhancing verification speed to "second-level" [2][3] - The "Inbound and Outbound Mail Customs Clearance" service features a one-stop platform for mail handling, offering functionalities such as mail tracking, supplementary declarations, tax payment, and return applications [3] Group 2: Future Developments - Shanghai Customs has implemented nearly 100 facilitation measures this year and plans to continue addressing the needs of enterprises and the public [5] - The customs authority aims to enrich the list of "Efficient Completion of One Thing" initiatives, providing more convenient, intelligent, and integrated solutions to optimize the business environment at Shanghai ports [5]