Group 1 - Vietnamese youth participated in a study tour in Guangzhou, focusing on technology and innovation in the smart era [1] - The Guangzhou metro system has 17 lines and a total length of 705 kilometers, serving millions of passengers daily [1] - Guangzhou metro is recognized internationally for its safety, service, efficiency, and punctuality [1][2] Group 2 - Guangzhou metro has developed a self-researched passenger flow prediction and early warning system to ensure safe and orderly operations [2] - The new integrated smart platform based on industrial internet and IoT is being demonstrated to enhance operational efficiency and passenger service [2] - The experience of the Guangzhou metro left a deep impression on the Vietnamese visitors, highlighting the potential for technology integration in urban development [2] Group 3 - GAC Group showcased its advanced manufacturing capabilities in the production of electric vehicles, utilizing robotic arms for assembly [3] - The intelligent cockpit system in GAC's electric vehicles supports multilingual interaction and integrates AI technology [3] - Vietnamese companies express a strong interest in adopting Chinese technological advancements to enhance their own industrial capabilities [3]