Electronics-Grade Synthetic Columbite Concentrate from China
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 — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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