Exo-Isomer Enriched Dicyclopentadiene from Japan
DCPD enriched in the exo-isomer (typically 60-70%) offers different reactivity profiles for specialty polymer applications, classified under HTS 2902.19.00.10 as the specific cyclic hydrocarbon. Isomer mixtures remain chemically defined per Chapter 29 note (b).
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include NMR spectra verifying exo/endo ratio for customs verification
• Label as 'Dicyclopentadiene, exo-enriched' to match statistical reporting