Can only be used in supermarkets in Shen Chang. Shopping cards in Shen Chang supermarkets are divided into smart cards and Lianhua Ok cards, and shopping cards can only be used in supermarkets in Shen Chang. Shen Chang Supermarket is a high-end supermarket owned by Henan Zhangda Industrial Co., Ltd., and its brand is mainly fresh. Roommate Supermarket bakes tobacco, alcohol and seafood in four areas. Changsheng supermarket has a complete industrial chain from commercial procurement, processing to warehousing and distribution, and the source of each batch of goods can be traced back to the products of Changsheng supermarket, taking a differentiated boutique route.