Kunming, June 19 -- Vietnamese Deputy Prime Minister Tran Hong Ha addressed the opening ceremony of the 9th China-South Asia Expo (CSA Expo) and the 29th Kunming Import and Export Fair on June 19, calling on countries to increase infrastructure investment and improve both regional and global logistics connectivity. In his remarks, Ha emphasised that Vietnam, which boasts a widespread seaport system and is strongly developing strategic rail, road, and air infrastructure, is ready to strengthen cooperation with China and other countries to create seamless and multimodal logistics connectivity. He also urged countries to work together to remove supply chain bottlenecks, expand market access, strengthen cooperation in smart customs procedures...