Potassium Nitrate Fertilizer
Crystalline potassium nitrate (KNO3) delivers potassium and nitrogen for greenhouse and hydroponic production. Falls under HTS 3104.90.0100 as other potassic fertilizers not specifically covered by ammonium nitrate mixtures in heading 3102.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mixed with ammonium compounds
Double salts or mixtures with ammonium nitrate shift to heading 3102.
If retail garden packaged
Consumer-sized packages classify under retail fertilizer headings.
If pure chemical grade
Excludes fertilizer mixtures; pure nitrates go to inorganic chemicals chapter.
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Import Tips & Compliance
• ATF import permits may be required due to explosive potential; coordinate with fertilizer classification
• Provide end-use statements confirming agricultural application over industrial explosives
• Segregate from pure chemicals to maintain Chapter 31 fertilizer status
Related Products under HTS 3104.90.01.00
Potassium Chloride Fertilizer (Muriate of Potash)
Granular potassium chloride (KCl), commonly known as muriate of potash, is a primary potassic fertilizer providing essential potassium for plant growth. It falls under HTS 3104.90.0100 as a mineral potassic fertilizer not specifically covered by headings 3102 or 3103, and not packaged for retail in heading 3105.
Potassium Sulfate Fertilizer (Sulfate of Potash)
Crystalline potassium sulfate (K2SO4) fertilizer, also called sulfate of potash, supplies potassium and sulfur to crops without chloride. Classified under HTS 3104.90.0100 as 'other' potassic fertilizers not enumerated in prior headings or retail packaged.
Mono Potassium Phosphate (MKP) Fertilizer
Water-soluble mono potassium phosphate (KH2PO4) provides potassium and phosphorus for fertigation systems. It qualifies under HTS 3104.90.0100 as an 'other' potassic fertilizer since phosphorus content doesn't trigger superphosphate classification in 3103.
Potassium Magnesium Sulfate Fertilizer
Langbeinite ore-based fertilizer containing potassium, magnesium, and sulfur for organic farming. Classified HTS 3104.90.0100 as mineral potassic not fitting specific salt descriptions or phosphatic categories.
Sulpomag Potassium-Magnesium Fertilizer
Granulated sulpomag (K2SO4·2MgSO4) provides potassium, magnesium, and sulfur for crop nutrition. HTS 3104.90.0100 covers this as other potassic mineral fertilizer not matching enumerated chemical salts.
Water-Soluble Potassium Fertilizer Blend 13-0-46
Soluble fertilizer blend with 13% nitrogen and 46% potassium oxide for foliar and fertigation. Classifies under HTS 3104.90.0100 as potassic-dominant not meeting specific 3102 mixture criteria.