波兰关闭白俄口岸，中欧班列受阻、跨境电商物流承压

Group 1 - Poland's Minister of Interior and Administration, Mariusz Kamiński, announced the indefinite closure of all border crossings with Belarus due to security concerns stemming from joint military exercises by Russia and Belarus, effective from September 12 [1] - The closure has led to a significant disruption in the Central European freight transport, particularly affecting the Małaszewicze border crossing, which is a crucial hub for the China-Europe Railway Express [3][5] - The European Railway Freight Association estimates that 85%-90% of the Central European trains pass through Poland, resulting in approximately 300 trains carrying goods such as electronics and automotive parts being stranded in Belarus, causing supply chain costs to rise by over 15% [3][5] Group 2 - The EU Supply Chain Monitoring Center reported that the disruption could freeze land routes worth up to €25 billion in trade, impacting e-commerce giants like Temu and Shein with delays and increased rerouting costs [6] - The China-Europe Railway Express is highlighted as a flagship project for cooperation between China and Poland, emphasizing the importance of ensuring smooth transit to maintain stability in international supply chains [7] - Currently, Poland has not announced a timeline for the reopening of the border crossings, which may continue to affect trade between Asia and Europe [7]