S.C. Code Ann. § 38-69-270: Contracts not providing cash surrender benefits.

For contracts which do not provide cash surrender benefits, the present value of any paid-up annuity benefit available as a nonforfeiture option at any time prior to maturity may not be less than the present value of that portion of the maturity value of the paid-up annuity benefit provided under the contract arising from considerations paid prior to the time the contract is surrendered in exchange for, or changed to, a deferred paid-up annuity. The present value is calculated for the period prior to the maturity date on the basis of the interest rate specified in the contract for accumulating the net considerations to determine such maturity value and increased by any existing additional amounts credited by the insurer to the contract. For contracts which do not provide any death benefits prior to the commencement of any annuity payments, the present values are calculated on the basis of the interest rate and the mortality table specified in the contract for determining the maturity value of the paid-up annuity benefit. However, in no event may the present value of a paid-up annuity benefit be less than the minimum nonforfeiture amount at that time.