S.C. Code Ann. § 58-27-2060

No person is excused from testifying or from producing any book, document, paper, or account in any hearing before the commission, when ordered to do so, upon the ground that the testimony or evidence, book, document, paper, or account required of him may tend to incriminate him or subject him to penalty or forfeiture; but no person shall be prosecuted, punished, or subjected to any forfeiture or penalty for or on account of any act, transaction, matter, or thing concerning which he shall have been compelled under oath to testify or produce documentary evidence. But no person so testifying is exempt from prosecution or punishment for any perjury committed by him in his testimony.