1. What is "Customs Closure"?Definition: Hainan will become a special customs supervision zone under the principle of "First Line Open, Second Line Controlled, Island-Wide Freedom"14.First Line (Open): Free movement of goods, capital, and personnel between Hainan and global markets.Second Line (Cont

Hainan’s island-wide customs closure (effective 2025) establishes a special customs supervision zone, boosting free trade with "zero-tariff" expansion (6,600 tax items, 74% coverage) while maintaining open travel.