S.C. Code Ann. § 12-14-70
(A) For purposes of this chapter, "economic impact zone business" means, with respect to any taxable year, any corporation if for such year:
(1)
(B) For purposes of this chapter:
(2) The rental to others of real property located in an economic impact zone may be treated as a qualified business only if:
(b) in the case of residential rental property:
(5) The term "qualified business" does not include:
(b) any trade or business the principal activity of which is farming (within the meaning of subsections (A) or (B) of Section 2032A(e)(5) of the Internal Revenue Code), but only if, as of the close of the preceding taxable year, the sum of:
(ii) the aggregate value of assets leased by the taxpayer which are used in such a trade or business, exceeds five hundred thousand dollars.
For purposes of subitem (b), rules similar to the rules of Section 1395(b) of the Internal Revenue Code apply.
(6) For purposes of this chapter, the term "nonqualified financial property" means debt, stock, partnership interests, options, futures contracts, forward contracts, warrants, notional principal contracts, annuities, and other similar property specified in regulations, except that the term does not include: