S.C. Code Ann. § 44-24-120

The child or the child's guardian may request removal of the proceedings to another county of the State when the convenience of witnesses and the ends of justice require it. When the place of the proceedings is changed, all other proceedings must be held in the county to which the place of hearing is changed, unless otherwise provided by the filed consent of the parties in writing or order of the court. The papers must be filed or transferred accordingly.