S.C. Code Ann. § 36-9-704: Security interest unperfected before effective date.

A security interest that is enforceable immediately before this act takes effect but which would be subordinate to the rights of a person that becomes a lien creditor at that time:

(1) remains an enforceable security interest for one year after this act takes effect;

(2) remains enforceable thereafter if the security interest becomes enforceable under Section 36-9-203 when this act takes effect or within one year thereafter; and

(3) becomes perfected:

(A) without further action, when this act takes effect if the applicable requirements for perfection under this act are satisfied before or at that time; or

(B) when the applicable requirements for perfection are satisfied if the requirements are satisfied after that time.