Cobalt Sulfate Heptahydrate from Mexico
Cobalt sulfate heptahydrate is used in pigments, catalysts, and lithium-ion battery precursors. It is classified under HTS 2833.29.51 as an other sulfate not specifically provided for elsewhere.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Lab certification required to confirm cobalt content and hydrate purity
• Declare as hazardous if dust-forming; follow IMDG for sea shipments
• Avoid animal feed labeling to prevent Chapter 23 or 31 shifts