Boron-10 Enriched Boron Oxide Powder from Japan
B2O3 powder with boron enriched in the boron-10 isotope, used in specialized glass manufacturing and neutron shielding. Classified under HTS 2845.20.00.00 because it is a compound of isotopically enriched boron per Chapter 28 notes on isotopes. Purity levels are documented for nuclear and research applications.
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
• Declare exact isotopic ratio and total activity; subject to EAR controls under ECCN 1C239 for nuclear materials
• Use IAEA safeguards documentation if sourced internationally to comply with non-proliferation rules