Product classification
HS code for DCP: 2835.25
Phosphates, calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined.
Classification of DCP under HS 2835.25
Dicalcium phosphate (DCP), chemically known as calcium hydrogenorthophosphate, is classified under HS code 2835.25. This classification is governed by the structure of Chapter 28, which covers inorganic chemicals. Heading 2835 specifically includes phosphinates (hypophosphites), phosphonates (phosphites), and phosphates. Within this heading, the nomenclature provides a specific subheading for calcium hydrogenorthophosphate. To qualify for this code, the product must be a chemically defined compound, although the HS allows for certain impurities. The classification remains consistent whether the DCP is intended for use as a food additive, a laboratory reagent, or a component in industrial processes. However, the physical state and the presence of additives intended to make it suitable for specific uses, such as animal feed, can sometimes complicate the classification process, requiring a strict adherence to Chapter 28 Note 1 regarding the definition of separate chemically defined compounds.
- Covers
- Anhydrous dicalcium phosphate
- Dicalcium phosphate dihydrate
- Food-grade calcium hydrogenorthophosphate
- Reagent-grade dicalcium phosphate
- Also under 2835.25
- Purina Animal Feed (supplement)
- Centrum Multivitamins (filler)
- Toothpaste (some formulations)
- Baking Powder (leavening agent)
- Pet Food (Royal Canin, Hill's Science Diet)
Codes often confused with 2835.25
Common mistake. DCP is often misclassified under 2309.90 if it is prepared as an animal feed supplement with added vitamins or other nutrients. It may also be confused with 3103.11 or 3103.19 if it is presented as a mineral fertilizer (superphosphates). If the product is a mixture of different phosphates not elsewhere specified, it might be incorrectly placed in 3824.99. Pure calcium phosphates other than the hydrogenorthophosphate are classified under 2835.26.
Top exporters and importers of HS 283525 (the code used for DCP), 2025
In 2025, the largest exporter of HS 283525 (the code used for DCP) in UN Comtrade data was China, with 39% of world exports; the largest importer in UN Comtrade data was Brazil, with 11% 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 283525, not only DCP.
Top exporters 2025 · share of world exports
- 1 China $178M 39% of world exports
- 2 Germany $57M 12% of world exports
- 3 Peru* ~$44M 9.6% of world exports · partner records ↗
World total: $462M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $65M 11% of world imports
- 2 Vietnam* ~$35M 6.1% of world imports · partner records ↗
- 3 Indonesia $35M 6.1% of world imports
World total: $575M 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 DCP
Brazil classifies DCP under NCM 2835.25.00: HS 2835.25 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about DCP
What is the HS code for DCP?
The HS code for DCP is 283525 (Phosphates; calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined). The HS code for dicalcium phosphate (calcium hydrogenorthophosphate) is 2835.25.
How do I classify DCP for customs?
DCP is classified under HS code 283525 — Phosphates; calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined. This is a 6-digit subheading level code.
Is feed-grade DCP classified differently?
Pure dicalcium phosphate used in feed is still 2835.25, but if it is mixed with other ingredients to form a complete feed supplement, it moves to 2309.90.
Which countries are the top exporters of DCP (HS 283525)?
In 2025, the top exporters of HS 283525 (the code used for DCP) in UN Comtrade data were China ($178M, 39% of world exports), Germany ($57M) and Peru (about $44M). World exports came to about $462M, 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 DCP (HS 283525)?
In 2025, the top importers of HS 283525 (the code used for DCP) in UN Comtrade data were Brazil ($65M, 11% of world imports), Vietnam (about $35M) and Indonesia ($35M). World imports came to about $575M, 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 DCP the same in all countries?
The base HS code 283525 for DCP 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 DCP in Brazil?
In Brazil, DCP (HS 283525) is classified under NCM 2835.25.00.