1. According to the inquiry, the resident service of Shanghai Yuanzu Food Factory is Shanghai Yuanzu Food Co., Ltd. ... Yuanzu Food 198 1 was established in Taiwan Province Province, China, and has been stationed in Shanghai since 1993. Based in Shanghai, Yuanzu Food has set up 1 1 stores in major cities in Chinese mainland, such as Shanghai, Jiangsu, Zhejiang, Sichuan, Wuhan, Qingdao, Changsha, Guangzhou, Liaoning and Fujian.