Boron-10 Enriched Boron Nitride Powder from China
BN powder with high boron-10 content, used in high-temperature ceramics and neutron detectors. Classified in HTS 2845.20.00.00 as an inorganic compound of isotopically enriched boron. Differs from standard BN by isotopic specification per Chapter notes.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Certify particle size and isotope ratio; often requires radiation monitoring during shipment
• End-use declaration critical for nuclear/non-proliferation controls