On May 21, 2022, an international rail-sea freight train left southwest China's Chongqing Municipality to Vientiane, Laos, with customs clearance faster than ever. The train loaded with local food from Chongqing and agricultural machinery is expected to arrive in Vientiane along the China-Laos Railway in four days. It is the first rail-sea freight train along the railway to adopt a new clearance mode launched by the General Administration of Customs in recent years, whereby clearance efficiency is much improved, especially for trains carrying containers.