Ferrocolumbium (Ferro-Niobium) 65% Nb from Mexico
Ferrocolumbium alloy with 65% niobium (columbium), essential for micro-alloying high-strength low-alloy steels. HTS 7202.99.8040 designates it as 'Other' ferroalloy consistent with Chapter 72 iron-based additions not elsewhere specified.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify niobium content with certified assays; use anti-rust packaging—no allowances for discoloration per Chapter rules; differentiate from pure niobium under Chapter 81 in declarations