Sales of export property.
(b) Sales of export property. Qualified export receipts of a DISC include gross receipts from the sale of export property by such DISC, or by any principal for whom such DISC acts as a commission agent (whether or not such principal is a related supplier), pursuant to the terms of a contract entered into with a purchaser by such DISC or by such principal at any time or by any other person and assigned to such DISC or such principal at any time prior to the shipment of such property to the purchaser. Any agreement, oral or written, which constitutes a contract at law, satisfies the contractual requirement of this paragraph. Gross receipts from the sale of export property, whenever received, do not constitute qualified export receipts unless the seller (or the corporation acting as commission agent for the seller) is a DISC at the time of the shipment of such property to the purchaser. For example, if a corporation which sells export property under the installment method is not a DISC for the taxable year in which the property is shipped to the purchaser, gross receipts from such sale do not constitute qualified export receipts for any taxable year of the corporation.