海南全岛封关第一批累计加工增值免关税享惠货物通关

Group 1 - The first batch of duty-free goods benefiting from processing and value-added exemptions has successfully cleared customs on the first day of Hainan's island-wide closure [3] - Hainan Refining has established a process for importing propane with a 30% value-added duty exemption, which is expected to reduce raw material costs by 9 million yuan for the entire year of 2025 [3] - The cumulative raw material procurement costs for Hainan Refining will significantly decrease after the closure, while Weida Chemical can reduce the cost of polyethylene by 400 yuan per ton due to direct supply from upstream raw materials [3]