Nanchong City, Sichuan Province. Official website information of Nanchong Sidu Chaoniudao Catering Management Co., Ltd. shows that the headquarters address of Chaoniudao is Nanchong City, Sichuan Province. Chaoniudao is a healthy chain catering brand under Nanchong Sidu Chaoniudao Catering Management Co., Ltd., which mainly deals in mushroom soup and high-quality beef, featuring soup pot and baking tray.