A claim under section
1643b
(a) of this title based upon an ownership interest in any corporation, association, or other entity which is a national of the United States shall not be considered. A claim under section
1643b
(a) of this title based upon a debt or other obligation owing by any corporation, association, or other entity organized under the laws of the United States, or of any State, the District of Columbia, or the Commonwealth of Puerto Rico shall be considered, only when such debt or other obligation is a charge on property which has been nationalized, expropriated, intervened, or taken by the Government of Cuba, or the Chinese Communist regime.