S.C. Code Ann. § 44-7-990

Such bonds shall be sold for not less than par and accrued interest, upon sealed bids, after notice of such sale by publication in some newspaper published in the city or town or having general circulation therein for at least fifteen days prior thereto. The award shall be given to the bidder offering the most advantageous terms for the purchase of such bonds, but the city or town council may reject any and all bids and reoffer the bonds for sale.