S.C. Code Ann. § 29-15-10
It is lawful for any proprietor, owner, or operator of any storage place, garage, or repair shop of whatever kind or repairman who makes repairs upon any article under contract or furnishes any material for the repairs to sell the property as provided in this section. When property has been left at his shop for repairs or storage, and after the completion of these repairs or the expiration of the storage contract, and the article has been continuously retained in his possession, the property may be sold at public auction to the highest bidder upon the expiration of thirty days after written notice has been given to the owner of the property and to any lienholder with a perfected security interest in the property that the repairs have been completed or storage charges are due. The property must be sold by a magistrate of the county in which the work was done or the vehicle or thing was stored. Storage costs may be charged that have accrued before the notification of the owner and lienholder, by certified or registered mail, of the location of the vehicle, but may not exceed charges for five days from the date the towing or storage operator receives the owner and lienholder's name and address. However, all storage costs that accrue from the date the notice is mailed may be recovered at the time of the sale. The magistrate, before selling the property, shall ensure that any lienholder of record has been notified of the pending sale, and the magistrate shall advertise the property for at least fifteen days by posting a notice in three public places in his township. He shall, after deducting all proper costs and commissions, pay to the claimant the money due to him, taking his receipt for it, after which he shall deposit the receipt, as well as the items of costs and commissions with the remainder of the money or proceeds of the sale in the office of the clerk of court subject to the order of the owner of the article and any lienholders having perfected security interest in the article or any legal representative of the owner or the lienholder. The magistrate who sells the property is entitled to receive the same commissions as allowed by law for the sale of personal property by constables. When the value of the property repaired or stored does not exceed ten dollars, the storage owner, operator, or repairman may sell the property at public auction to the highest bidder upon the expiration of thirty days after written notice has been given to the owner of the property that the repairs have been completed or storage charges are due and if a description of the article to be offered for sale and the cost of it has been from the time of the written notice advertised, together with the time and place of the proposed sale, in a prominent place in the shop or garage, on the county bulletin board at the courthouse, and in some other public place. The sale must be made for cash to the highest bidder at the shop or garage at which the repairs were made or storage incurred at ten a.m. on the first Monday of the first month after the thirty days' notice has been given and the true result of the sale must be immediately made known to the original owner of the article sold by notice addressed to the last known address of the owner.