Niobium Carbide Powder from Mexico
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 — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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