 China-based retail platform Dada Nexus Ltd NASDAQ: DADA announced its on-demand retail platform, JDDJ JD Daojia, has signed partnerships with 30 leading supermarket chains. The supermarket chains include MeetAll in Shanxi, Xiangjiang General Store in Hunan, Baijia Supermarket in Gansu, Youhao Supermarket in Xinjiang, and Aijia Supermarket. 