S.C. Code Ann. § 61-4-630

Notwithstanding any other provision of law, an establishment possessing a beer and wine permit that is located in a county or municipality that has conducted a favorable referendum allowing the sale and consumption of alcoholic liquors by the drink on Sunday under the provisions of Section 61-6-2010, during those same hours authorized by permits issued under Section 61-6-2010, may sell, possess, and permit the consumption of beer and wine on the premises.