2849.90.50.00/Niobium Carbide Powder/Japan

Niobium Carbide Powder from Japan

Niobium carbide (NbC) powder strengthening superalloys for jet engines. HTS 2849.90.50.00 for chemically defined form excluding alloys. Critical for high-temperature structural integrity.

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%

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Import Tips

• ITAR/EAR screening required for aerospace end-uses

• Declare tantalum impurities <1% to avoid dual classification

• Use vacuum packaging for moisture-sensitive shipments