重庆巴南集中签约29个项目，总投资220亿元

Group 1 - The core event is the signing of 29 investment projects in Banan District, Chongqing, with a total investment of approximately 22 billion yuan [1] - The signed projects cover key industrial sectors including biomedicine, electronic information, intelligent connected new energy vehicles, technology services, financial services, and modern logistics [1]