S.C. Code Ann. § 11-46-60: Repayment of grant.

Two percent of the gross profits derived from the sale of hydrogen and fuel cell products or services developed from a grant to a grant recipient, organized and operating as a for-profit business entity, must be annually remitted to the fund through June 30, 2012, until the full amount of the original grant has been repaid to the fund. Thereafter, if the full amount of the original grant has not been repaid, two percent of such gross profits must be annually remitted to the State Treasurer and transferred to the general fund of the State until repaid. The Department of Revenue shall promulgate regulations to determine and certify gross profits.