Product classification
HS code for Ammonium phosphate: 2835.29
Phosphates, (other than of mono- or disodium, other than of potassium or of calcium hydrogenorthophosphate (dicalcium phosphate) and excluding other phosphates of calcium), whether or not chemically defined.
Classification of ammonium phosphate under HS 2835.29
Ammonium phosphate refers to a group of inorganic chemical compounds, such as monoammonium phosphate (MAP) and diammonium phosphate (DAP). These compounds are classified under HS Chapter 28, which encompasses inorganic chemicals. Heading 2835 specifically covers phosphinates, phosphonates, phosphates, and polyphosphates. Subheading 2835.29 is designated for "Phosphates; (other than of mono- or disodium, other than of potassium or of calcium hydrogenorthophosphate (dicalcium phosphate) and excluding other phosphates of calcium), whether or not chemically defined". This subheading serves as a residual category for phosphates not explicitly covered by more specific subheadings within 2835.2X, making it the appropriate classification for ammonium phosphates.
- Covers
- Monoammonium phosphate (MAP)
- Diammonium phosphate (DAP)
- Ammonium polyphosphate
- Other ammonium salts of phosphoric acid not specified elsewhere
- Also under 2835.29
- BASF (industrial chemicals)
- Lanxess (water treatment)
- Solvay (specialty phosphates)
- Chemetall (surface treatment)
Codes often confused with 2835.29
Common mistake. Ammonium phosphate can be misclassified with other phosphate compounds. For instance, sodium phosphates are classified under HS code 2835.21, potassium phosphates under 2835.22, and calcium hydrogenorthophosphate (dicalcium phosphate) under 2835.25. It is crucial to differentiate ammonium phosphates from these specific metal phosphates. Furthermore, confusion may arise with phosphinates (2835.10) or polyphosphates (2835.3X). The key to correct classification is recognizing that 2835.29 is the specific residual category for phosphates that are not of sodium, potassium, or specific calcium forms, ensuring accurate placement for ammonium phosphates.
Top exporters and importers of HS 283529 (the code used for ammonium phosphate), 2025
In 2025, the largest exporter of HS 283529 (the code used for ammonium phosphate) in UN Comtrade data was China, with 27% of world exports; the largest importer in UN Comtrade data was Indonesia, with 12% 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 283529, not only ammonium phosphate.
Top exporters 2025 · share of world exports
- 1 China $80M 27% of world exports
- 2 France $51M 17% of world exports
- 3 Germany $49M 17% of world exports
World total: $295M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Indonesia $47M 12% of world imports
- 2 United States $36M 9.3% of world imports
- 3 Thailand $34M 8.8% of world imports
World total: $390M 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 ammonium phosphate
Brazil splits HS 2835.29 into 9 NCM codes. Pick the one that matches your product:
- 2835.29.10Iron phosphate
- 2835.29.20Cobalt phosphate
- 2835.29.30Copper phosphate
- 2835.29.40Chromium phosphate
- 2835.29.50Strontium phosphate
- 2835.29.60Manganese phosphate
- 2835.29.70Triammonium phosphate
- 2835.29.80Trisodium phosphate
- 2835.29.90Other phosphates
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about ammonium phosphate
What is the HS code for Ammonium phosphate?
The HS code for Ammonium phosphate is 283529 (Phosphates; (other than of mono- or disodium, other than of potassium or of calcium hydrogenorthophosphate (dicalcium phosphate) and excluding other phosphates of calcium), whether or not chemically defined). The HS code for Ammonium phosphate is 283529.
How do I classify Ammonium phosphate for customs?
Ammonium phosphate is classified under HS code 283529 — Phosphates; (other than of mono- or disodium, other than of potassium or of calcium hydrogenorthophosphate (dicalcium phosphate) and excluding other phosphates of calcium), whether or not chemically defined. This is a 6-digit subheading level code.
What are the primary uses of ammonium phosphate compounds?
Ammonium phosphate compounds are predominantly used as fertilizers, providing essential nitrogen and phosphorus nutrients for plant growth. They are also utilized as fire retardants in various materials, as leavening agents in the food industry, and in some industrial processes.
Which countries are the top exporters of ammonium phosphate (HS 283529)?
In 2025, the top exporters of HS 283529 (the code used for ammonium phosphate) in UN Comtrade data were China ($80M, 27% of world exports), France ($51M) and Germany ($49M). World exports came to about $295M, 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 ammonium phosphate (HS 283529)?
In 2025, the top importers of HS 283529 (the code used for ammonium phosphate) in UN Comtrade data were Indonesia ($47M, 12% of world imports), the United States ($36M) and Thailand ($34M). World imports came to about $390M, 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 Ammonium phosphate the same in all countries?
The base HS code 283529 for Ammonium phosphate 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 ammonium phosphate in Brazil?
Brazil splits HS 283529 into 9 NCM codes, so the right one for ammonium phosphate depends on the product's details: 2835.29.10 (Iron phosphate), 2835.29.20 (Cobalt phosphate), 2835.29.30 (Copper phosphate), 2835.29.40 (Chromium phosphate), 2835.29.50 (Strontium phosphate), 2835.29.60 (Manganese phosphate), and more.