S.C. Code Ann. § 33-19-510

The application of a foreign professional corporation for a certificate of authority to render professional services in this State must contain the information called for by Section 33-15-103 and, in addition, include a statement that all of its shareholders, not less than one-half of its directors, and all of its officers other than its secretary and treasurer, if any, are licensed in one or more states to render a professional service described in its articles of incorporation.