Core Points - The resumption of the international passenger train service between China and Vietnam marks a significant milestone in bilateral cooperation and is expected to enhance trade, tourism, and cultural exchanges between the two countries [1][3][4] Group 1: Train Service Details - The international passenger train service operates daily with two trips from Hanoi (Kailin Station) to Nanning Station in China, with a one-way ticket priced at approximately 1 million Vietnamese Dong (about 277 RMB) [3] - Children under 4 years old can travel for free, while those aged 4 to 12 pay half price; groups of more than six can enjoy a 25% discount [3] - Tickets can be purchased at various train stations in Vietnam, including Hanoi, Kailin, Bac Giang, and Dong Dang [3] Group 2: Infrastructure and Upgrades - During the suspension of the train service, both Vietnam and China upgraded their railway infrastructure to improve efficiency and safety for cross-border travel [4] - The modernization of Kailin Station in Hanoi has enhanced passenger facilities and streamlined boarding procedures, while upgrades at Nanning Station and border checkpoints have also been completed [4] Group 3: Economic and Cultural Impact - The resumption of the train service is anticipated to support economic cooperation, increase railway infrastructure utilization, and promote tourism [3] - The simplified travel process is expected to encourage cross-border investment and cooperation, which is vital for maintaining friendly relations and enhancing diplomatic ties [4]