S.C. Code § 33-49-90
The Secretary of State immediately upon the filing in his office of any articles pursuant to this chapter shall transmit a certified copy thereof to the county clerk of the county in which the principal office of each cooperative or corporation affected by such incorporation, amendment, consolidation, merger, conversion or dissolution shall be located. Any such clerk, upon receipt of any such certified copy, shall file and index the same in the records of his office but the failure of the Secretary of State or of a clerk of a county to comply with the provisions of this section shall not invalidate such articles. In addition the Secretary of State shall forward to the clerk of court or register of mesne conveyance of any county in which such cooperative owns property affected a certified copy of any such document. The clerk of court or register of mesne conveyance shall file such document in an appropriate book or file to be provided for such purpose.
S.C. Code § 33-49-90