Core Viewpoint - The Hainan Free Trade Port's "zero tariff" policy has benefited goods worth 25.5 billion yuan, covering a wide range of industries and significantly reducing operational costs for enterprises, while injecting new momentum for industrial upgrades [1] Group 1: Policy Impact - The "zero tariff" policy has achieved full coverage across sea, land, and air, benefiting numerous sectors [1] - The proportion of "zero tariff" goods in the "first line" imports will increase from 21% to 74% after the island's closure operation [1] Group 2: Customs and Regulatory Enhancements - Customs departments are continuously optimizing regulatory processes and innovating regulatory models to facilitate "zero tariff" imports [1] - There is a need for improved joint management mechanisms and the establishment of a credit supervision system supported by big data [1] Group 3: Future Directions - The development of "smart regulatory scenarios" such as "zero tariff" is essential for achieving automated supervision and intelligent early warning [1] - Policies should clarify the specific management responsibilities and boundaries of industry regulatory departments and customs, detailing standards and procedures for enterprises to enjoy the policy [1]