Nanjing Seven Seven Catering Management Co., Ltd, with a registered capital of 10 million, is a Nanjing local specialized catering brand chain operation (service) business, the company's Huangduofu, Jin Dangxian Beef Biscuits, and many other sub-brand projects. The company's existing directly-managed stores more than ten, hundreds of franchises across the country, located in Jiangsu, Shanghai, Beijing, Jiangxi, Sichuan, Shaanxi, Xinjiang, Yunnan and other parts of the country.

Nanjing (abbreviation: Ning), the ancient name of Jinling, Jiankang, the capital of Jiangsu Province, a sub-provincial city, megacity, Nanjing metropolitan area core city. Nanjing is located in the southwest of Jiangsu Province, the lower reaches of the Yangtze River.