S.C. Code Ann. § 9-1-1130

All interest and dividends earned on the invested assets of the System must be credited to the employer annuity accumulation fund. The Board shall credit regular interest to the individual accounts of members in the employee annuity savings fund and shall transfer the amounts of the credits from the employer annuity accumulation fund. Any interest credited to the individual account of a member in the employee annuity savings fund and not payable to him under the provisions of Section 9-1-1650 upon his ceasing to be a teacher or employee except by death or retirement must be transferred from the fund to the employer annuity accumulation fund.