Calcium Boride Crystals from Japan
Calcium boride (CaB6) crystals used in refractory materials and neutron absorbers for nuclear applications. Falls under HTS 2850.00.0500 as a chemically defined boride of calcium. Known for high hardness and thermal stability.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Submit crystallographic data if claiming single crystals to justify chemical definition
• For nuclear end-use, prepare IAEA safeguards documentation preemptively
• Avoid retail packaging that might trigger 3824 classification for lab reagents