S.C. Code Ann. § 59-19-50: Appointment and term of trustees for consolidated districts.

When school districts are consolidated, the county board of education shall appoint, from within the consolidated district, five trustees to serve as trustees of the new district, two for a term of one year, two for a term of two years and one for a term of three years. Thereafter the successors of all such trustees shall be elected for a term of three years or be appointed as provided by law.