Special election.
(B) Special election. If all or a portion of the imported article was originally manufactured, produced, grown, or extracted in the United States, the taxpayer may elect to determine the fair market value of the imported articles which constitutes foreign content under the provisions of this paragraph (e)(4)(i)(B) if the property is subjected to manufacturing or production (as defined in paragraph (c) of this section) within the United States after importation. A taxpayer making the election under this paragraph may determine the fair market value of the imported articles which constitutes foreign content to be the fair market value of the imported articles reduced by the fair market value at the time of the initial export of the portion of the property that was manufactured, produced, grown, or extracted in the United States. The taxpayer must establish the fair market value of the imported articles and of the portion of the property manufactured, produced, grown, or extracted in the United States at the time of the initial export in accordance with subdivision (4)(ii)(B) of this paragraph.