Electronics-Grade Synthetic Columbite Concentrate from Japan
High-purity synthetic columbite (FeNb2O6 analog) concentrate with added tantalum for capacitor-grade feedstock. Falls under HTS 2615.90.30.00 as a synthetic Ta-Nb blend. Essential for manufacturing tantalum electrolytic capacitors in consumer electronics.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Certify purity levels (>30% Ta2O5/Nb2O5) with third-party assays to support valuation
• Use proper NAICS codes for electronics end-use to qualify for potential duty relief programs
• Monitor for anti-dumping duties from specific origins like Brazil or Australia