HS code · 6-digit subheading
HS Code 3105.90 – Fertilizers, mineral or chemical; n.e.c. in heading no. 3105
HS code 3105.90 is the 6-digit subheading for fertilizers, mineral or chemical, n.e.c. in heading no. 3105. It is used for micronutrient-fortified NPK, slow-release coated fertilizers (not just NPK), liquid trace element blends, chelated nutrient fertilizers and organic-mineral fertilizers.
What HS 3105.90 covers
This HS code serves as a residual category for mineral or chemical fertilizers not specifically enumerated in other subheadings of 3105. It encompasses a wide array of specialized and complex fertilizer formulations, including those fortified with micronutrients (e.g., zinc, boron, iron), slow-release or controlled-release fertilizers that don't fit standard NPK definitions, and unique blends designed for specific soil conditions or crop requirements. These products often represent higher-value segments of the fertilizer market, catering to niche agricultural practices, precision farming, and advanced horticultural applications. Global trade involves specialized chemical companies as exporters and sophisticated agricultural markets as importers, seeking innovative solutions for nutrient management. The 'not elsewhere specified' nature means careful examination of the product's composition and intended use is critical for accurate classification.
- Covers
- Micronutrient-fortified NPK
- Slow-release coated fertilizers (not just NPK)
- Liquid trace element blends
- Chelated nutrient fertilizers
- Organic-mineral fertilizers
- Specialty foliar feeds
- Examples
- Haifa Micro-Combi
- YaraVita CropLift
- ICL NovaTec Solub
- Compo Expert Basfoliar
- Nutrien ESN (if not purely N)
Codes often confused with 3105.90
Common mistake. This code is a catch-all, so misclassification often occurs when a product *should* fit a more specific 3105 sub-heading (e.g., 310520 for NPK) but is incorrectly placed here, or vice-versa, due to complex formulations.
Top exporters and importers of HS code 310590, 2025
In 2025, the largest exporter of HS code 310590 in UN Comtrade data was Israel, with 30% of world exports; the largest importer in UN Comtrade data was Mexico, with 6.4% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Israel $1.0B 30% of world exports
- 2 Spain $489M 14% of world exports
- 3 China $359M 10% of world exports
World total: $3.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Mexico $173M 6.4% of world imports
- 2 Myanmar $168M 6.2% of world imports
- 3 Egypt $133M 4.9% of world imports
World total: $2.7B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 3105.90 3
Brazil splits HS 3105.90 into 3 NCM codes, Mercosur's 8-digit tariff lines.
- 3105.90.1 Sodium potassium nitrateNitrato de sódio potássico Group
- 3105.90.11 Sodium potassium nitrate, max 15% N and 15% K2OQue contenha, em peso, 15 % ou menos de nitrogênio (azoto) e 15 % ou menos de óxido de potássio (K2O)
- 3105.90.19 Other sodium potassium nitrateOutros
- 3105.90.90 Other mineral or chemical fertilizersOutros
All Brazil NCM codes in heading 31.05 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about HS 3105.90
What is HS code 310590?
HS code 310590 is a 6-digit subheading in the Harmonized System that covers: Fertilizers, mineral or chemical; n.e.c. in heading no. 3105. This HS code serves as a residual category for mineral or chemical fertilizers not specifically enumerated in other subheadings of 3105. It encompasses a wide array of specialized and complex fertilizer formulations, including those fortified with micronutrients (e.g., zinc, boron, iron), slow-release or controlled-release fertilizers that don't fit standard NPK definitions, and unique blends designed for specific soil conditions or crop requirements. These products often represent higher-value segments of the fertilizer market, catering to niche agricultural practices, precision farming, and advanced horticultural applications. Global trade involves specialized chemical companies as exporters and sophisticated agricultural markets as importers, seeking innovative solutions for nutrient management. The 'not elsewhere specified' nature means careful examination of the product's composition and intended use is critical for accurate classification.
What products fall under HS code 310590?
Micronutrient-fortified NPK, slow-release coated fertilizers (not just NPK), liquid trace element blends, chelated nutrient fertilizers, organic-mineral fertilizers, specialty foliar feeds
What are common misclassifications for HS code 310590?
This code is a catch-all, so misclassification often occurs when a product *should* fit a more specific 3105 sub-heading (e.g., 310520 for NPK) but is incorrectly placed here, or vice-versa, due to complex formulations.
Which countries are the top exporters of goods under HS code 310590?
In 2025, the top exporters of HS code 310590 in UN Comtrade data were Israel ($1.0B, 30% of world exports), Spain ($489M) and China ($359M). World exports came to about $3.5B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 310590?
In 2025, the top importers of HS code 310590 in UN Comtrade data were Mexico ($173M, 6.4% of world imports), Myanmar ($168M) and Egypt ($133M). World imports came to about $2.7B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 310590 structured?
HS code 310590 is a 6-digit subheading under the Harmonized System. The first 2 digits (31) identify the chapter, digits 3-4 (05) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 310590?
Brazil splits HS code 310590 into 3 NCM codes: 3105.90.11 (Sodium potassium nitrate, max 15% N and 15% K2O), 3105.90.19 (Other sodium potassium nitrate), 3105.90.90 (Other mineral or chemical fertilizers). The first 6 digits of each match the HS code.