S.C. Code § 59-69-260
It is unlawful for any county treasurer, county auditor, member of a county board of education, or school trustee to buy, discount, or share, directly or indirectly, or be in any way interested in any teacher's pay certificate or other order on a school fund, except those as are payable to him for his own services. If any of the above officers violate the provisions of this section, he is guilty of a misdemeanor and upon conviction must be fined not less than one hundred dollars nor more than five hundred dollars to be used for school purposes in his county or must be imprisoned not less than three months nor more than twelve months, or both. He shall also forfeit the amount of the claim or of his interest in the claim.
The provisions of this section do not prohibit a county board of education member, a school trustee, or a business with which he is associated from providing services or selling products to the district of which he is a board member or trustee as long as all these transactions are in accordance with the provisions of Chapter 13 of Title 8.
S.C. Code § 59-69-260