S.C. Code Ann. § 4-10-370

The Department of Revenue shall furnish data to the State Treasurer and to the county treasurers receiving revenues for the purpose of calculating distributions and estimating revenues. The information that must be supplied to counties and municipalities upon request includes, but is not limited to, gross receipts, net taxable sales, and tax liability by taxpayers. Information about a specific taxpayer is considered confidential and is governed by the provisions of Section 12-54-240. A person violating this section is subject to the penalties provided in Section 12-54-240.