High-Purity Boron Lump from Canada
High-purity boron lumps are irregular chunks of elemental boron (>99.9% pure), used in vacuum arc melting for advanced alloys. Falls under HTS 2804.50.0010 as unprocessed boron nonmetal, per Chapter 28 exclusions for worked or alloyed forms.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Submit third-party assay reports for purity to prevent reclassification as scrap or alloy
• Package in inert atmosphere to prevent oxidation; document for customs inspection
• Avoid bulk shipments without proper segregation from oxidizers