Cobaltous Carbonate Technical Grade from Mexico
Technical-grade cobaltous carbonate (CoCO3, 45-50% Co) is supplied as fine powder for catalyst manufacturing and glass coloring. It qualifies for HTS 2836.99.10.00 as a pure cobalt carbonate compound under Chapter 28 definitions.
Duty Rate — Mexico → United States
4.2%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Test for carbonate ion (CO3^2-) content >40%; low purity risks 3824 reclassification
• Declare cobalt percentage accurately; discrepancies trigger CBP lab analysis and penalties
• Use UN-approved packaging (4G fiber drums) for toxic solid classification