S.C. Code Ann. § 6-5-30
Assistance of State Treasurer.
The State Treasurer is authorized to assist local governments in investing funds that are temporarily in excess of operating needs by: (1) Explaining investment opportunities to such local governments through publication and other appropriate means; (2) Acquainting such local governments with the State's practice and experience in investing short-term funds; and (3) Providing technical assistance in investment of idle funds to local governments that request such assistance.