Pure Monoammonium Phosphate Fertilizer
Pure monoammonium phosphate (MAP) fertilizer, a water-soluble chemical compound providing nitrogen and phosphorus for plant growth. It is classified under tariff item 3105.40.00 as it matches the exact chemical description of ammonium dihydrogenorthophosphate, whether or not pure, and is not put up in forms or packages described in heading 31.05.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If put up in tablets or similar forms or in packages of a gross weight not exceeding 10 kg
Heading 31.05 covers goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg.
If the product is urea rather than monoammonium phosphate
Urea is a nitrogenous fertilizer classified in heading 31.02.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the product is not packaged in tablets or similar forms or in packages exceeding 10 kg gross weight, as that would shift classification to heading 31.05
• Have a certificate of analysis confirming the chemical purity and composition ready for CBSA inspection
Related Products under Tariff item 3105.40.00
Bloom Booster MAP 10-50-0
Bloom booster MAP fertilizer with an N-P-K analysis of 10-50-0, packaged in 5 kg branded retail bags. This monoammonium phosphate product is classified under tariff item 3105.40.00 as a mixture of ammonium dihydrogenorthophosphate, provided it is not in forms or packages described in heading 31.05.
Crystal MAP/DAP for Hydroponic Systems
Fine crystal mixture of monoammonium phosphate (MAP) and diammonium phosphate (DAP) with an analysis of 14-58-0, packaged in 3 kg moisture-proof jars for hydroponic nutrient solutions. This product falls under tariff item 3105.40.00 as a mixture of ammonium dihydrogenorthophosphate and diammonium hydrogenorthophosphate.
DAP Granules 21-53-0 High Nitrogen Blend
DAP Granules 21-53-0 High Nitrogen Blend is a premium diammonium phosphate fertilizer with elevated nitrogen content, supplied in 1-metric-ton jumbo bags. It is classifiable under tariff item 3105.40.00 as a mixture of diammonium hydrogenorthophosphate with other phosphate compounds, meeting the chapter note 5 provision for intermixtures.
DAP-MAP 15-30-15 Complete Starter Blend
DAP-MAP 15-30-15 Complete Starter Blend is a triple mixture of DAP, MAP, and potash, creating a balanced 15-30-15 starter fertilizer. It falls under tariff item 3105.40.00 because it is a mixture of monoammonium and diammonium phosphates, even with potash added, as long as it is not classified under the NPK heading 3105.20.00.
Diammonium Phosphate 18-46-0 Granular Fertilizer
Diammonium Phosphate 18-46-0 Granular Fertilizer is standard DAP with 18% nitrogen and 46% P2O5, directly matching the description of diammonium hydrogenorthophosphate. It is classifiable under tariff item 3105.40.00 as a pure compound or in mixtures, per chapter note 5.
Diammonium Phosphate 21-53-0 Blend
High-phosphorus fertilizer blend of diammonium phosphate (DAP) providing 21% nitrogen and 53% P2O5, supplied in 9 kg waterproof bags for home lawn applications. This product is classified under tariff item 3105.40.00 as a mixture of diammonium hydrogenorthophosphate with monoammonium phosphate.