Sam’s Cub is an American chain of membership-only retail warehouse clubs owned and operated by Walmart. Similar to METRO Sam’s Cub is bulk purchase type of supermarket. Even selection is not that wide, some of the items you will find much cheaper when it comes in huge packages. Sam’s Club is an Membership-only supermarket which means you have to have membership card for 260 rmb for a year. You can purshase it at the entrence, just don’t forget to bring your passport.