S.C. Code Ann. § 54-3-1350

In order to discharge their oversight responsibilities in regard to State Ports Authority operations and management, the commission may request and shall be provided within fifteen days after the request with any documents related to the sale or disposition or contemplated sale or disposition of any real property owned by the authority. The provisions of this section supersede any conflicting provisions contained in the Freedom of Information Act and these documents may be shared only with members of the commission, staff assigned to the commission, members of the General Assembly with whom the commission chooses to consult concerning the matter, or legal counsel employed by the Senate or the House of Representatives. These documents and the information contained in them must be kept confidential, and are not subject to public disclosure, or any other disclosure not permitted by the provisions of this section.