S.C. Code Ann. § 33-18-300: Merger, share exchange, and sale of assets.

(a) A plan of merger or share exchange that, if effected, would:

(1) terminate statutory close corporation status must be approved by the holders of at least two-thirds of the votes of each class or series of shares of the statutory close corporation, voting as separate voting groups, whether or not the holders are otherwise entitled to vote on the plan;

(2) create the surviving corporation as a statutory close corporation must be approved by the holders of at least two-thirds of the votes of each class or series of shares of each constituent corporation, voting as separate voting groups, whether or not the holders are otherwise entitled to vote on the plan.

(b) A sale, lease, exchange, or other disposition of all or substantially all of the property (with or without the good will) of a statutory close corporation, if not made in the usual and regular course of business, must be approved by the holders of at least two-thirds of the votes of each class or series of shares of the corporation, voting as separate voting groups, whether or not the holders are otherwise entitled to vote on the transaction.