both dong Xiaowei and dadong are brands of dadong group. Dadong Group has nine sub-brands, namely, Dadong, Xiaodonger, Dongxiaoweier, Dongdaojia (e-commerce), Dadong's "at first sight" home food service, Dadong Food College, Dadong Huanxiagong, Dadong anhui cuisine and Dadong Jinglu Cuisine, which are distributed in Beijing, Shanghai, Shenzhen, Xi 'an, Chongqing and Hangzhou, respectively.