S.C. Code Ann. § 41-31-140
No transfer of experience rating accounts, in whole or in part, is permitted under the provisions of Sections 41-31-100 to 41-31-130 unless all unemployment compensation taxes based on wages paid by the transferring employer prior to the date of the transfer are paid by the transferring employer when due or assumed by the acquiring employer within sixty days from the date he is notified by the commission that the transfer cannot be allowed because of unpaid unemployment compensation taxes. If the experience rating account of the predecessor employer contains a debit balance (excess of total benefits charged over total contributions paid), the experience rating account of the predecessor employer in any event must be transferred to the successor employer in accordance with the provisions of Sections 41-31-100 and 41-31-120.