HS Code for NPK fertilizer

NPK fertilizers are classified under HS code 3105.20. This classification is straightforward as the subheading specifically names mineral or chemical fertilizers containing the three fertilizing elements: nitrogen, phosphorus, and potassium. These are often referred to as "complete" fertilizers because they provide the three primary macronutrients required for plant growth. The classification applies regardless of the ratio (e.g., 15-15-15 or 20-10-10), provided all three elements are present in chemically significant quantities. Under the Harmonized System, these products are categorized in Chapter 31. Heading 3105 covers fertilizers put up in tablets or similar forms or in packages of a gross weight not exceeding 10 kg, as well as other fertilizers. However, 3105.20 specifically captures the ternary blends in bulk or large packaging. The classification is determined by the presence of the three elements, often verified through laboratory testing of the nitrogen, P2O5, and K2O content. This code is vital for global agricultural trade, as NPK blends are the most commonly used fertilizers worldwide for a variety of crops. The classification is governed by Note 2 to Chapter 31, which defines the products that fall under mineral or chemical fertilizers.

Products Included

• NPK 15-15-15 complex fertilizer
• NPK 10-26-26 granulated blends
• Liquid NPK fertilizer solutions
• NPK fertilizers in tablets or small retail packs (if exceeding 10kg, otherwise 3105.10)

Common Misclassification

NPK fertilizers are sometimes misclassified under 3105.10 if the importer fails to notice the weight limit (10kg) for that code. They are also confused with 3105.51 or 3105.59 (NP fertilizers) or 3105.60 (PK fertilizers) if one of the three primary nutrients is missing or present only in negligible trace amounts.

FAQ

What is the HS code for NPK fertilizer?

The HS code for NPK fertilizer containing nitrogen, phosphorus, and potassium is 3105.20.

Does the NPK ratio affect the HS code?

No, as long as all three elements are present, the ratio (like 10-20-10 vs 20-20-20) does not change the 3105.20 classification.