S.C. Code Ann. § 34-30-1440
(A) In addition to the powers granted in this chapter, but subject to rules or regulations that the board prescribes, a state savings bank incorporated or operated under this chapter may:
(5) with the approval of the Commissioner of Banking, capital certificates may be issued by state-chartered savings banks and sold directly to subscribers or through underwriters, and the certificates constitute part of the general reserve and net worth of the issuing state savings bank, provided such certificates: