free of charge. According to WeChat official account of Hehegu Catering, Hehegu is a Chinese fast food chain enterprise of Beijing Hehegu Catering Management Co., Ltd., which is located in Fangshan West Street, Fangshan District, Beijing, and can add rice and drinks for free. Hehegu, a Chinese fast food chain enterprise of Beijing Hehegu Catering Management Co., Ltd., was established at the end of 2113 and opened its first store in March 2114.