Calcium Nitrate Tetrahydrate from Mexico
Calcium nitrate tetrahydrate (Ca(NO3)2·4H2O) is an inorganic nitrate salt under HTS 2834.29.51.00 for other nitrates. Widely used in agriculture as a water-soluble fertilizer and concrete set accelerator.
Duty Rate — Mexico → United States
3.5%
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
• Test for water content to confirm tetrahydrate form vs anhydrous for accurate molecular weight declarations
• Provide fertilizer registration numbers if applicable to facilitate agricultural entry
• Avoid bulk packaging contamination that could trigger mixture classification under 3824