S.C. Code Ann. § 29-9-20

Such lien shall be dissolved unless the person claiming it shall file, within ninety days after he ceases to labor on or furnish labor or materials for such ship or vessel, in the office of the register of deeds or clerk of court of the county within which the ship or vessel was at the time the debt was contracted, a statement, subscribed and sworn to by himself or by some person in his behalf, giving a just and true account of the demands claimed to be due to him, with all just credits, and also the name of the person with whom the contract was made, the name of the owner of the ship or vessel, if known, and the name of the ship or vessel or a description thereof sufficient for identification. Such statement shall be recorded by the register of deeds or clerk in a book kept by him for that purpose, for which he shall receive the same fees as for recording other papers of equal length.