S.C. Code Ann. § 2-20-370

All records, information, and other material that the commission has obtained or used to make its findings of fact, except materials, records, and information presented under oath at the public hearing, must be kept strictly confidential. After the commission has reported its findings of fact, or after a candidate withdraws his name from consideration, all records, information, and material must be kept confidential and may be retained by the commission for at least six years.