HS code · 6-digit subheading
HS Code 2835.25 – Phosphates; calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined
HS code 2835.25 is the 6-digit subheading for phosphates, calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined. It is used for dicalcium phosphate (DCP), calcium hydrogen phosphate, calcium monohydrogen phosphate, feed-grade DCP and food-grade DCP.
What HS 2835.25 covers
This HS code specifically covers calcium hydrogenorthophosphate, commonly known as dicalcium phosphate (DCP). DCP is a crucial inorganic compound primarily utilized as a dietary supplement in animal feed, providing essential calcium and phosphorus for the healthy growth and development of livestock and poultry. It also finds significant applications in the food industry as a leavening agent, dough conditioner, and a nutritional supplement in fortified foods and cereals. Pharmaceutical companies frequently use it as an excipient in the manufacturing of tablets and capsules. Animal feed manufacturers, food processors, and pharmaceutical companies are the main importers, while large chemical and mineral processing firms are the primary exporters. Key trade considerations include purity, particle size, and strict compliance with feed safety and food-grade regulations. Its indispensable role in animal nutrition ensures a steady and substantial global trade volume.
- Covers
- Dicalcium phosphate (DCP)
- Calcium hydrogen phosphate
- Calcium monohydrogen phosphate
- Feed-grade DCP
- Food-grade DCP
- Pharmaceutical-grade DCP
- Examples
- 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. Dicalcium phosphate (2835.25) should not be confused with other calcium phosphates like tricalcium phosphate (2835.26) or monocalcium phosphate (2835.29), which have different Ca:P ratios and applications.
Top exporters and importers of HS code 283525, 2025
In 2025, the largest exporter of HS code 283525 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.
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 2835.25
Brazil does not split HS 2835.25: its NCM code is 2835.25.00.
All Brazil NCM codes in heading 28.35 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2835.25
What is HS code 283525?
HS code 283525 is a 6-digit subheading in the Harmonized System that covers: Phosphates; calcium hydrogenorthophosphate (dicalcium phosphate), whether or not chemically defined. This HS code specifically covers calcium hydrogenorthophosphate, commonly known as dicalcium phosphate (DCP). DCP is a crucial inorganic compound primarily utilized as a dietary supplement in animal feed, providing essential calcium and phosphorus for the healthy growth and development of livestock and poultry. It also finds significant applications in the food industry as a leavening agent, dough conditioner, and a nutritional supplement in fortified foods and cereals. Pharmaceutical companies frequently use it as an excipient in the manufacturing of tablets and capsules. Animal feed manufacturers, food processors, and pharmaceutical companies are the main importers, while large chemical and mineral processing firms are the primary exporters. Key trade considerations include purity, particle size, and strict compliance with feed safety and food-grade regulations. Its indispensable role in animal nutrition ensures a steady and substantial global trade volume.
What products fall under HS code 283525?
Dicalcium phosphate (DCP), Calcium hydrogen phosphate, Calcium monohydrogen phosphate, Feed-grade DCP, Food-grade DCP, Pharmaceutical-grade DCP
What are common misclassifications for HS code 283525?
Dicalcium phosphate (2835.25) should not be confused with other calcium phosphates like tricalcium phosphate (2835.26) or monocalcium phosphate (2835.29), which have different Ca:P ratios and applications.
Which countries are the top exporters of goods under HS code 283525?
In 2025, the top exporters of HS code 283525 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 goods under HS code 283525?
In 2025, the top importers of HS code 283525 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.
How is HS code 283525 structured?
HS code 283525 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (35) identify the heading, and digits 5-6 (25) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 283525?
In Brazil, HS code 283525 is NCM 2835.25.00. The last two digits are 00 because Brazil does not split this HS code further.