Core Viewpoint - The Hainan Free Trade Port will officially start its island-wide customs closure on December 18, 2025, marking a significant step in China's efforts to establish a high-level open economy and attract investment [2][5]. Policy Implementation - The announcement includes a series of regulatory documents that will take effect upon the official closure, detailing tax policies for goods entering and exiting the port, as well as lists of prohibited and restricted items [2][5]. Economic Opportunities - Hainan is positioned as a new frontier for China's opening-up, with expectations of becoming a hub for international trade and cooperation, particularly benefiting provinces like Zhejiang and Henan [5][6]. - The port's establishment allows for "new offshore international trade," facilitating easier capital flow and compliance for businesses, particularly in supply chain management [5][6]. Regional Collaboration - Other provinces, such as Henan, are looking to leverage Hainan's customs closure to enhance their logistics and supply chain capabilities, aiming to create a strategic connection between Hainan and the RCEP market [6][7]. - The collaboration is expected to boost logistics demand and create new pathways for cooperation among provinces [6][7]. Infrastructure Development - The Hainan 500 kV main grid project, a key infrastructure initiative, has been completed, enhancing the province's power supply capacity significantly [11].