S.C. Code Ann. § 33-13-260: Failure to take action.

(a) If the corporation does not take the proposed action within sixty days after the date set for demanding payment and depositing share certificates, the corporation, within the same sixty-day period, shall return the deposited certificates and release the transfer restrictions imposed on uncertificated shares.

(b) If, after returning deposited certificates and releasing transfer restrictions, the corporation takes the proposed action, it must send a new dissenters' notice under Section 33-13-220 and repeat the payment demand procedure.