S.C. Code Ann. § 36-9-313
(1) In this section and in the provisions of Part 4 of this chapter referring to fixture filing, unless the context otherwise requires:
(4) A perfected security interest in fixtures has priority over the conflicting interest of an encumbrancer or owner of the real estate where:
(5) A security interest in fixtures, whether or not perfected, has priority over the conflicting interest of an encumbrancer or owner of the real estate where: