Nothing contained in this article shall prohibit a trust institution from establishing, maintaining, and administering one or more common trust funds differing from the requirements of this article, in which only investments or participations are made by such trust institution in accordance with specific contract authority.
Other common trust funds are not prohibited
S.C. Code Ann. § 34-21-420, under Title 34, Chapter 21.
S.C. Code Ann. § 34-21-420