Product Classification Guide

HS Code for Potassium fertilizer

3104.90 Fertilizers, mineral or chemical; potassic, n.e.c. in heading no. 3104
Chemicals
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Potassium fertilizers that do not fall under the specific categories of potassium chloride or potassium sulfate are classified under HS code 3104.90. This is a residual or "basket" category within heading 3104, which covers mineral or chemical potassic fertilizers. Chapter 31 is dedicated to fertilizers, and the subheadings under 3104 are organized by specific chemical types. While 3104.20 covers potassium chloride and 3104.30 covers potassium sulfate, 3104.90 captures other potassic substances used for soil enrichment, such as crude natural potassium salts or mixtures of potassic fertilizers that do not meet the criteria for the specific subheadings. This ensures that all potassic mineral products intended for agricultural use are accounted for within the same heading. The classification is essential for agricultural statistics and for applying trade policies related to food security and soil health. Products in this category are typically used to provide the potassium necessary for plant growth, particularly in soils that are deficient in this primary macronutrient. The code applies regardless of whether the product is in liquid or solid form, provided it is a potassic fertilizer not specified elsewhere.

Products Included

  • Crude natural potassium salts
  • Carnallite and Kainite
  • Sylvite and other potassic mineral salts
  • Mixtures of potassic fertilizers not elsewhere specified
  • Potassium magnesium sulfate (if not classified as a double salt elsewhere)

Common Misclassification

This code is often confused with 3104.20 (Potassium chloride) or 3104.30 (Potassium sulfate) if the specific chemical nature of the fertilizer is not clearly identified. It can also be confused with 3105.20, which covers compound fertilizers containing nitrogen, phosphorus, and potassium (NPK). If the fertilizer contains more than just potassium as a primary nutrient, it must be moved to heading 3105.

FAQ

What is the HS code for potassium fertilizer (other)?

The HS code for other potassic fertilizers not specifically named is 3104.90.

What is the code for NPK fertilizers?

NPK fertilizers, which contain multiple primary nutrients, are classified under heading 3105, specifically 3105.20.

Industry

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Frequently Asked Questions

What is the HS code for Potassium fertilizer?

The HS code for Potassium fertilizer is 310490 (Fertilizers, mineral or chemical; potassic, n.e.c. in heading no. 3104).

How do I classify Potassium fertilizer for customs?

Potassium fertilizer is classified under HS code 310490 — Fertilizers, mineral or chemical; potassic, n.e.c. in heading no. 3104. This is a 6-digit subheading level code.

Is the HS code for Potassium fertilizer the same in all countries?

The base HS code 310490 for Potassium fertilizer is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.