; and (II) with respect to any retrofit work necessary for the vessel to export natural gas— (aa) such work is done in a shipyard in the United States; and (bb) any component of the vessel listed in paragraph (4) that is installed during the course of such work is manufactured in the United States; or (ii) if— (I) the vessel is built in the United States; (II) the vessel is documented under the laws of the United States; (III) all major components of the hull or superstructure of the vessel are manufactured (including all manufacturing processes from the initial melting stage through the application of coatings for iron or steel products) in the United States; and (IV) the components of the vessel listed in paragraph (4) are manufactured in the United States