Li Peng. According to the information of Shanghai Sanmengshu, the founder of Shanghai Sanmengshu is Li Peng. Three Mongolian uncles are the key snack brands under Handa (Shanghai) Catering Management Co., Ltd., which was established on 20 17 1 1. The registered capital of the company is as high as 5 million yuan, and the number of Mongolian uncles is 23, each of which is a catering brand featuring barbecue and mutton kebabs.