S.C. Code Ann. § 34-26-370
(1) A credit union organized under the laws of another state or territory of the United States may conduct business as a credit union in this State with the approval of the board, provided credit unions incorporated under this chapter are allowed to do business in the other state under conditions similar to these provisions. Before granting the approval, the board must find that the out-of-state credit union:
(2) No out-of-state credit union may conduct business in this State unless it:
(3) The board may revoke the approval of a credit union to conduct business in this State if the board finds that: