HS code · 6-digit subheading
HS Code 2835.26 – Phosphates; of calcium n.e.c. in item no. 2835.25, whether or not chemically defined
HS code 2835.26 is the 6-digit subheading for phosphates, of calcium n.e.c. in item no. 2835.25, whether or not chemically defined. It is used for tricalcium phosphate, monocalcium phosphate, calcium pyrophosphate, calcium metaphosphate and bone ash.
What HS 2835.26 covers
This HS code covers various calcium phosphates not specifically classified elsewhere, particularly those beyond dicalcium phosphate (2835.25). These compounds are crucial in diverse industries, acting as essential ingredients in animal feed supplements, fertilizers, and certain food additives. In international trade, major agricultural nations and countries with significant livestock industries are key importers, seeking to enhance feed quality and crop yields. Exporters often include countries with robust chemical manufacturing capabilities and access to phosphate rock reserves. Key things to know involve understanding the specific grade and purity required for different applications, as slight variations can impact functionality and regulatory compliance. The global demand is driven by population growth, increasing meat consumption, and the need for efficient agricultural production, making these phosphates vital commodities in the global supply chain for food security and animal nutrition.
- Covers
- Tricalcium phosphate
- Monocalcium phosphate
- Calcium pyrophosphate
- Calcium metaphosphate
- Bone ash
- Defluorinated phosphate
- Examples
- Nutri-Phos (feed grade)
- Phos-Feed (fertilizer)
- ICL (calcium phosphates)
- Innophos (food additives)
Codes often confused with 2835.26
Common mistake. This code can be confused with 283525 (dicalcium phosphate) if the specific calcium phosphate isn't clearly identified, or with 3105.40 (diammonium phosphate) if used as a fertilizer, but 283526 is for the chemical compound itself.
Top exporters and importers of HS code 283526, 2025
In 2025, the largest exporter of HS code 283526 in UN Comtrade data was China, with 25% of world exports; the largest importer in UN Comtrade data was the United States, with 9.6% of world imports. The United Kingdom reports $2.7B of its chapter 28 imports without product detail (confidential), so it may also belong among the top importers.
Top exporters 2025 · share of world exports
- 1 China $397M 25% of world exports
- 2 Russia* ~$181M 11% of world exports · partner records ↗
- 3 Morocco $168M 10% of world exports
World total: $1.6B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $156M 9.6% of world imports
- 2 Germany $107M 6.6% of world imports
- 3 France $63M 3.9% of world imports
The United Kingdom reports $2.7B of its chapter 28 imports without product detail (confidential), so it may also belong among the top importers.
World total: $1.6B 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 2835.26
Brazil does not split HS 2835.26: its NCM code is 2835.26.00.
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 2835.26
What is HS code 283526?
HS code 283526 is a 6-digit subheading in the Harmonized System that covers: Phosphates; of calcium n.e.c. in item no. 2835.25, whether or not chemically defined. This HS code covers various calcium phosphates not specifically classified elsewhere, particularly those beyond dicalcium phosphate (2835.25). These compounds are crucial in diverse industries, acting as essential ingredients in animal feed supplements, fertilizers, and certain food additives. In international trade, major agricultural nations and countries with significant livestock industries are key importers, seeking to enhance feed quality and crop yields. Exporters often include countries with robust chemical manufacturing capabilities and access to phosphate rock reserves. Key things to know involve understanding the specific grade and purity required for different applications, as slight variations can impact functionality and regulatory compliance. The global demand is driven by population growth, increasing meat consumption, and the need for efficient agricultural production, making these phosphates vital commodities in the global supply chain for food security and animal nutrition.
What products fall under HS code 283526?
Tricalcium phosphate, Monocalcium phosphate, Calcium pyrophosphate, Calcium metaphosphate, Bone ash, Defluorinated phosphate
What are common misclassifications for HS code 283526?
This code can be confused with 283525 (dicalcium phosphate) if the specific calcium phosphate isn't clearly identified, or with 3105.40 (diammonium phosphate) if used as a fertilizer, but 283526 is for the chemical compound itself.
Which countries are the top exporters of goods under HS code 283526?
In 2025, the top exporters of HS code 283526 in UN Comtrade data were China ($397M, 25% of world exports), Russia (about $181M) and Morocco ($168M). World exports came to about $1.6B, 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 283526?
In 2025, the top importers of HS code 283526 in UN Comtrade data were the United States ($156M, 9.6% of world imports), Germany ($107M) and France ($63M). World imports came to about $1.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). The United Kingdom reports $2.7B of its chapter 28 imports without product detail (confidential), so it may also belong among the top importers.
How is HS code 283526 structured?
HS code 283526 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 (26) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 283526?
In Brazil, HS code 283526 is NCM 2835.26.00. The last two digits are 00 because Brazil does not split this HS code further.