Product classification
HS code for MAP fertilizer: 3105.40
Fertilizers, mineral or chemical, ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate).
Classification of MAP fertilizer under HS 3105.40
MAP fertilizer, or monoammonium phosphate, is classified under HS code 3105.40. This classification falls under Chapter 31, which is dedicated to fertilizers. Heading 3105 covers mineral or chemical fertilizers containing two or three of the fertilizing elements: nitrogen, phosphorus, and potassium. Since MAP contains both nitrogen (from the ammonium) and phosphorus (from the phosphate), it is considered a binary fertilizer. The subheading 3105.40 specifically names ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate). This classification is used for the commercial product intended for agricultural use, whether it is in granular, powdered, or liquid form.
- Covers
- Monoammonium phosphate (MAP) fertilizer grade
- Mixtures of MAP and DAP (Diammonium phosphate)
- Granular MAP for soil application
- Water-soluble MAP for fertigation
- Technical grade MAP when used as a fertilizer component
- Also under 3105.40
- Haifa MAP
- Grow More MAP
- ICL MAP
- PhosAgro MAP
- Nutrien MAP
Codes often confused with 3105.40
Common mistake. MAP is sometimes misclassified under HS code 2835.22, which covers mono- or disodium phosphates. However, because MAP is an ammonium phosphate, it belongs in heading 3105 when used as a fertilizer. Another common error is confusing it with 3105.30, which is reserved for pure Diammonium phosphate (DAP). If a shipment contains a mixture of MAP and DAP, 3105.40 is the correct code as per the subheading text. Additionally, pure ammonium phosphates that are not of a kind used as fertilizers might theoretically fall under Chapter 28, but Note 2 to Chapter 31 generally directs these specific compounds to heading 3105.
Top exporters and importers of HS 310540 (the code used for MAP fertilizer), 2025
In 2025, the largest exporter of HS 310540 (the code used for MAP fertilizer) in UN Comtrade data was Morocco, with 37% of world exports; the largest importer in UN Comtrade data was Brazil, with 27% 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 310540, not only MAP fertilizer.
Top exporters 2025 · share of world exports
- 1 Morocco $3.4B 37% of world exports
- 2 Russia* ~$1.7B 18% of world exports · partner records ↗
- 3 China $1.3B 14% of world exports
World total: $9.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $2.2B 27% of world imports
- 2 Canada $1.2B 14% of world imports
- 3 Australia $992M 12% of world imports
World total: $8.2B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 code for MAP fertilizer
Brazil classifies MAP fertilizer under NCM 3105.40.00: HS 3105.40 with 00 added.
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 MAP fertilizer
What is the HS code for MAP fertilizer?
The HS code for MAP fertilizer is 310540 (Fertilizers, mineral or chemical; ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)). The HS code for monoammonium phosphate (MAP) fertilizer is 3105.40.
How do I classify MAP fertilizer for customs?
MAP fertilizer is classified under HS code 310540 — Fertilizers, mineral or chemical; ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate). This is a 6-digit subheading level code.
Can MAP be classified in Chapter 28?
Generally no; even if chemically pure, ammonium phosphates like MAP are specifically directed to heading 3105 by the Chapter 31 legal notes when they are used as fertilizers.
Which countries are the top exporters of MAP fertilizer (HS 310540)?
In 2025, the top exporters of HS 310540 (the code used for MAP fertilizer) in UN Comtrade data were Morocco ($3.4B, 37% of world exports), Russia (about $1.7B) and China ($1.3B). World exports came to about $9.3B, 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 MAP fertilizer (HS 310540)?
In 2025, the top importers of HS 310540 (the code used for MAP fertilizer) in UN Comtrade data were Brazil ($2.2B, 27% of world imports), Canada ($1.2B) and Australia ($992M). World imports came to about $8.2B, 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 MAP fertilizer the same in all countries?
The base HS code 310540 for MAP 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 MAP fertilizer in Brazil?
In Brazil, MAP fertilizer (HS 310540) is classified under NCM 3105.40.00.