S.C. Code Ann. § 32-1-240

All contracts of sale for future delivery of cotton, grain, stocks or other commodities: (1) Made in accordance with the rules of any board of trade, exchange or similar institution; (2) Actually executed on the floor of such board of trade, exchange or similar institution and performed or discharged according to the rules thereof; and (3) Placed with or through a regular member in good standing of a cotton exchange, grain exchange, board of trade or similar institution organized under the laws of this or any other state; Shall be valid and enforceable in the courts of this State according to their terms; provided, that: (1) Contracts of sale for future delivery of cotton in order to be valid and enforceable as provided herein must not only conform to the foregoing requirements of this section but must also be made subject to the provisions of the United States Cotton Futures Act, approved August 11, 1916, and any amendments thereto; (2) If the foregoing proviso should for any reason be held inoperative then contracts for future delivery of cotton shall be valid and enforceable if they conform to the foregoing requirements of this section; and (3) When it is not contemplated by the parties to any contract that there shall be an actual delivery of the commodities sold or bought thereby such contract shall be unlawful.