S.C. Code Ann. § 11-50-50
The board of directors is the governing board of the authority. The board consists of seven voting directors appointed as follows:
(2) the Secretary of Commerce, ex officio, who shall serve as chairman.
Appointed members shall serve for terms of four years and until their successors are appointed and qualify except that of the members first appointed by the Speaker of the House, President Pro Tempore of the Senate, and one of the members first appointed by the Governor, the member shall serve for a term of two years and the term must be noted on the appointment. Vacancies must be filled in the manner of original appointment for the unexpired portion of the term. Members shall serve without compensation but are allowed mileage, subsistence, and per diem allowed by law for members of state boards, committees, and commissions.