S.C. Code § 59-125-370
In order to avail themselves of the authorizations set forth in this article, the trustees shall adopt resolutions providing for the issuance of bonds of Winthrop, within the limitations mentioned in this article which must prescribe the tenor, terms, and conditions of the bonds. The bonds must be issued as serial or term bonds, maturing in equal or unequal amounts, at such times and on such occasions as the trustees determine. The last maturing bonds of any issue must be expressed to mature not later than fifty years from their date, and the first maturing bonds of any issue, issued pursuant to this article, falls due within five years from their date. They must bear such rates of interest, payable on such occasion as the trustees prescribe, and the bonds must be in such denominations, payable in such medium of payment, and at such place as such resolutions prescribe. All bonds may be issued with a provision permitting their redemption on any interest payment date before their respective maturities. Bonds made subject to redemption before their stated maturities may contain a provision requiring the payment of a premium for the privilege of exercising the right of redemption in such amount or amounts as the trustees prescribe in the resolutions authorizing their issuance. All bonds that are subject to redemption must contain a statement to that effect on the face of each bond. The resolutions authorizing their issuance must contain provisions specifying the manner of call and the notice of call that must be given.
S.C. Code § 59-125-370