Cerium Sulfate Octahydrate from Mexico
Hydrated cerium(IV) sulfate used in water treatment and as an oxidizing agent. It is an 'other' cerium compound under HTS 2846.10.0050, as sulfates of rare-earths are not covered by general sulfate headings (2833) per Chapter structure.
Duty Rate — Mexico → United States
5.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Confirm valence state (Ce(IV)) in documentation to match exact compound
• Label as hazardous oxidizer per DOT regulations
• Prevent reclassification to 2833 by citing Chapter 28 rare-earth specificity