S.C. Code Ann. § 33-15-107: Registered office and registered agent of foreign corporation.

Each foreign corporation authorized to transact business in this State must maintain continuously in this State:

(1) a registered office that may be the same as any of its places of business; and

(2) a registered agent, who may be:

(i) an individual who resides in this State and whose business office is identical with the registered office;

(ii) a domestic corporation or not-for-profit domestic corporation whose business office is identical with the registered office; or

(iii) a foreign corporation or foreign not-for-profit corporation authorized to transact business in this State whose business office is identical with the registered office.