Product classification
HS code for DAP MAP blend: 3105.40
Fertilizers, mineral or chemical, ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate).
Classification of DAP MAP blend under HS 3105.40
DAP MAP blends are classified under HS code 3105.40. This code specifically addresses mineral or chemical fertilizers containing ammonium dihydrogenorthophosphate (monoammonium phosphate or MAP) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate or DAP). Chapter 31 of the Harmonized System governs fertilizers. Heading 3105 is reserved for fertilizers containing two or three of the primary fertilizing elements: nitrogen, phosphorus, and potassium. MAP and DAP are both nitrogen-phosphorus (NP) fertilizers. While pure DAP has its own specific subheading (3105.30), the Harmonized System provides a specific subheading (3105.40) for MAP and any mixtures where MAP is present alongside DAP. This classification is straightforward but requires precise chemical identification. The blend is often used in agriculture to provide a specific ratio of nitrogen to phosphorus that supports early plant growth and root development. It is important to ensure the product does not contain potassium, as the addition of potash would move the classification to 3105.20. Furthermore, the classification under 3105.40 applies regardless of whether the product is in tablets or similar forms or in packages of a gross weight not exceeding 10 kg, although such retail packaging can sometimes trigger classification under 3105.10. However, for bulk agricultural trade, 3105.40 is the standard. The chemical purity and the specific mixture ratio are the primary factors that customs authorities examine to distinguish these products from other nitrogenous or phosphatic fertilizers.
- Covers
- Monoammonium phosphate (MAP)
- MAP and DAP mixtures
- Ammonium dihydrogenorthophosphate
- Granulated NP fertilizer blends (MAP-based)
- Technical grade MAP/DAP blends
- Also under 3105.40
- Haifa MAP
- Grow More MAP
- ICL MAP
- PhosAgro MAP
- Nutrien MAP
Codes often confused with 3105.40
Common mistake. The most common error is classifying a blend under 3105.30, which is strictly for pure Diammonium phosphate (DAP). Another error is using 3103.11 for superphosphates, which do not contain the nitrogen component found in MAP and DAP blends.
Top exporters and importers of HS 310540 (the code used for DAP MAP blend), 2025
In 2025, the largest exporter of HS 310540 (the code used for DAP MAP blend) 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 DAP MAP blend.
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 DAP MAP blend
Brazil classifies DAP MAP blend 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 DAP MAP blend
What is the HS code for DAP MAP blend?
The HS code for DAP MAP blend is 310540 (Fertilizers, mineral or chemical; ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)). The HS code for a mixture of DAP and MAP is 3105.40.
How do I classify DAP MAP blend for customs?
DAP MAP blend 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.
Is pure MAP classified under the same code?
Yes, pure Monoammonium phosphate (MAP) is also classified under HS code 3105.40.
Which countries are the top exporters of DAP MAP blend (HS 310540)?
In 2025, the top exporters of HS 310540 (the code used for DAP MAP blend) 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 DAP MAP blend (HS 310540)?
In 2025, the top importers of HS 310540 (the code used for DAP MAP blend) 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 DAP MAP blend the same in all countries?
The base HS code 310540 for DAP MAP blend 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 DAP MAP blend in Brazil?
In Brazil, DAP MAP blend (HS 310540) is classified under NCM 3105.40.00.