S.C. Code Ann. § 36-9-112
Unless otherwise agreed, when a secured party knows that collateral is owned by a person who is not the debtor, the owner of the collateral is entitled to receive from the secured party any surplus under Section 36-9-502(2) or under Section 36-9-504(1), and is not liable for the debt or for any deficiency after resale, and he has the same right as the debtor: