Ji Jing (L), acting head of Xiangcheng District, and Zhou Dong, head of Shenzhen Polymer Industry Association, unveil the plaque of the Xiangcheng District Industrial Ecological Alliance Shenzhen Branch at an innovation summit held in Shenzhen on Friday. Xiangcheng is a district of Suzhou in East China’s Jiangsu Province. The summit, through investment promotion, exchanges among enterprises, and project docking, aimed to tap the potential of cross-regional cooperation between Shenzhen and Xiangcheng. The two sides signed agreements on 67 projects, covering such fields as biomedicine, intelligent manufacturing and new materials. The deals are worth some 16.90 billion yuan (US$2.5 billion). Sun Yuchen