Huainan City, Anhui Province.

According to Baidu Encyclopedia query, Laiyoupin is a brand of Nanjing Wanyou Commercial Chain Management Co., Ltd. (hereinafter referred to as "Nanjing Wanyou"). Nanjing Wanyou is affiliated to Wanchen Group, an A-share listed company. It is a snack chain brand focusing on community commerce and township markets. Its headquarters and operation center are located in Huainan City, Anhui Province. Laiyoupin is a trademark registered by Zhou Peng on the China Trademark Network. The trademark registration number is 15657289; the trademark category is Class 29; the applicant's address (in Chinese) is No. 106, Underground Commercial Street, Longhu Road, Tianjia'an District, Huainan City, Anhui Province.