Calcium Nitrate Tetrahydrate from China
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 — China → United States
28.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 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