S.C. Code § 61-4-160
No person who holds a biennial permit to sell beer or wine for on-premises consumption may advertise, sell, or dispense these beverages for free, at a price less than one-half of the price regularly charged, or on a two or more for the price of one basis. Beer or wine may be sold at a price less than the price regularly charged from four o'clock p.m. until eight o'clock p.m. only. The prohibition against dispensing the beverages for free does not apply to dispensing to a customer on an individual basis, to a fraternal organization in the course of its fund-raising activities, to a person attending a private function on premises for which a biennial permit has been issued, or to a customer attending a function sponsored by the person who holds a biennial permit. However, no more than two functions may be sponsored each year, and must be authorized by the department. A person who violates this section is guilty of a misdemeanor and, upon conviction, must be fined not less than one hundred dollars or imprisoned not less than three months, in the discretion of the court.
A person found guilty of a violation of Section 61-6-4550 and this section may not be sentenced under both sections for the same offense.
S.C. Code § 61-4-160