S.C. Code Ann. § 42-1-440: Indemnity of principal contractor.

When the principal contractor is liable to pay compensation under any of Sections 42-1-400 to 42-1-450, he shall be entitled to indemnity from any person who would have been liable to pay compensation to the workmen independently of such sections or from an intermediate contractor, and have a cause of action therefor.

A principal contractor when sued by a workman of a subcontractor shall have the right to call in that subcontractor or any intermediate contractor or contractors as defendant or codefendant.