S.C. Code § 16-15-315
No person shall, as a condition to any sale, allocation, consignment, or delivery for resale of any paper, magazine, book, periodical, publication, digital electronic file require that the purchaser or consignee receive for resale any other article, book, publication, or digital electronic file which is obscene within the meaning of Section 16-15-305 nor shall any person deny or threaten to deny any franchise or impose or threaten to impose any penalty, financial or otherwise, by reason of the failure or refusal of any person to accept the articles, books, publications, or digital electronic files, or by reason of the return thereof. A person who violates this section is guilty of a misdemeanor and, upon conviction, must be imprisoned for not more than one year or fined not more than one thousand dollars, or both.
S.C. Code § 16-15-315