Product classification
HS code for Compound fertilizer: 3105.90
Fertilizers, mineral or chemical, n.e.c. in heading no. 3105.
Classification of compound fertilizer under HS 3105.90
Compound fertilizers are classified under HS code 3105.90, a residual category for mineral or chemical fertilizers not specified elsewhere in heading 3105. This heading is designed for fertilizers that contain two or three of the primary fertilizing elements: nitrogen (N), phosphorus (P), and potassium (K). The classification is determined by the chemical composition and the intent of the product to provide a balanced nutrient profile for plant growth. Unlike single-nutrient fertilizers found in headings 3102 through 3104, compound fertilizers are mixtures or chemical combinations. The sub-heading 3105.90 is used when the fertilizer does not meet the specific criteria for NPK mixtures (3105.20) or specific diammonium phosphates, but still functions as a multi-nutrient mineral or chemical fertilizer.
- Covers
- Mineral fertilizers containing both nitrogen and potassium
- Chemical fertilizers containing phosphorus and potassium
- Specialty micronutrient-enriched mineral fertilizers
- Liquid compound fertilizers for agricultural use
- Granulated multi-nutrient chemical fertilizers
- Also under 3105.90
- 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. A frequent misclassification occurs with HS codes 3102, 3103, and 3104. These codes are strictly for fertilizers containing only one primary nutrient (nitrogen, phosphorus, or potassium, respectively). If a fertilizer contains even a small amount of a second primary nutrient, it must be moved to heading 3105. Additionally, 3105.20 is often confused with 3105.90; 3105.20 is specifically for fertilizers containing all three elements (N, P, and K), while 3105.90 is for those containing only two or other specific mineral combinations.
Top exporters and importers of HS 310590 (the code used for compound fertilizer), 2025
In 2025, the largest exporter of HS 310590 (the code used for compound fertilizer) 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.
Figures cover everything classified under HS 310590, not only compound fertilizer.
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 compound fertilizer
Brazil splits HS 3105.90 into 3 NCM codes. Pick the one that matches your product:
- 3105.90.11Sodium potassium nitrate, max 15% N and 15% K2O
- 3105.90.19Other sodium potassium nitrate
- 3105.90.90Other mineral or chemical fertilizers
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
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 compound fertilizer
What is the HS code for Compound fertilizer?
The HS code for Compound fertilizer is 310590 (Fertilizers, mineral or chemical; n.e.c. in heading no. 3105). The general HS code for compound mineral or chemical fertilizers not containing all three NPK elements is 3105.90.
How do I classify Compound fertilizer for customs?
Compound fertilizer is classified under HS code 310590 — Fertilizers, mineral or chemical; n.e.c. in heading no. 3105. This is a 6-digit subheading level code.
Does this code include organic fertilizers?
No, organic fertilizers of animal or vegetable origin are classified under heading 3101. Heading 3105 is reserved for mineral or chemical products.
Which countries are the top exporters of compound fertilizer (HS 310590)?
In 2025, the top exporters of HS 310590 (the code used for compound fertilizer) 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 compound fertilizer (HS 310590)?
In 2025, the top importers of HS 310590 (the code used for compound fertilizer) 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.
Is the HS code for Compound fertilizer the same in all countries?
The base HS code 310590 for Compound 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.
What is the NCM code for compound fertilizer in Brazil?
Brazil splits HS 310590 into 3 NCM codes, so the right one for compound fertilizer depends on the product's details: 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).