S.C. Code Ann. § 41-1-70

Any employer who dismisses or demotes an employee because the employee complies with a valid subpoena to testify in a court proceeding or administrative proceeding or to serve on a jury of any court is subject to a civil action in the circuit court for damages caused by the dismissal or demotion. Damages for dismissal are limited to no more than one year's salary or fifty-two weeks of wages based on a forty-hour week in the amount the employee was receiving at the time of receipt of the subpoena. Damages for demotion are limited to the difference for one year between the salary or wages based on a forty-hour week which the employee received before the demotion and the amount he receives after the demotion.