Calcium Nitride Granules from Japan
Calcium nitride (Ca3N2) in granular form serves as a nitrogen source in metallurgy and semiconductor production. Classified under HTS 2850.00.0500 as a chemically defined nitride of calcium, meeting Chapter 28 Note 1 criteria. It hydrolyzes to release ammonia.
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
• Declare nitrogen content precisely to distinguish from calcium cyanamide (Chapter 31 exclusion)
• Include end-use statements if for fertilizer production to prevent reclassification
• Verify importer has facilities for air-sensitive materials as calcium nitride is reactive with moisture