It shall be unlawful for any labor organization to enter into or seek to effect any agreement, contract or arrangement with any employer declared to be unlawful by Sections 41-7-20 or 41-7-30.
Labor organization contract violating right to work provisions
S.C. Code Ann. § 41-7-50, under Title 41, Chapter 7.
S.C. Code Ann. § 41-7-50