S.C. Code Ann. § 36-9-605: Unknown debtor or secondary obligor.

A secured party does not owe a duty based on its status as secured party:

(1) to a person that is a debtor or obligor, unless the secured party knows:

(A) that the person is a debtor or obligor;

(B) the identity of the person; and

(C) how to communicate with the person; or

(2) to a secured party or lienholder that has filed a financing statement against a person, unless the secured party knows:

(A) that the person is a debtor; and

(B) the identity of the person.