Product classification

HS code for Ferric 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 ferric phosphate under HS 2835.29

Ferric phosphate, also known as iron(III) phosphate, is classified under HS code 2835.29. This code belongs to Chapter 28, which covers inorganic chemicals and precious metal compounds. Specifically, heading 2835 includes phosphinates (hypophosphites), phosphonates (phosphites), and phosphates. Subheading 2835.29 is a residual category for "other" phosphates that are not specifically named in the preceding subheadings (such as those of sodium, potassium, or calcium). Ferric phosphate is an inorganic salt formed by the reaction of ferric hydroxide with phosphoric acid. Its classification is determined by its chemical identity as a metallic phosphate. Even when used in food fortification or as a molluscicide, its primary classification remains based on its chemical composition under Chapter 28, unless it is prepared in a way that forces it into another chapter.

Covers
  • Anhydrous ferric phosphate
  • Ferric phosphate dihydrate
  • Iron(III) orthophosphate
  • Food-grade ferric phosphate used as a mineral supplement
  • Technical grade ferric phosphate for industrial applications
Also under 2835.29
  • BASF (industrial chemicals)
  • Lanxess (water treatment)
  • Solvay (specialty phosphates)
  • Chemetall (surface treatment)

Codes often confused with 2835.29

Common mistake. Ferric phosphate is sometimes misclassified under 3103.90, which covers mineral or chemical phosphatic fertilizers. While ferric phosphate contains phosphorus, it is rarely used as a primary fertilizer in its pure form. Another common error is 3808.99, which covers pesticides and molluscicides. If the ferric phosphate is specifically packaged and formulated as a slug bait for retail sale, it may be classified under 3808; however, the bulk chemical substance remains under 2835.29. It is also occasionally confused with 2833.29 (ferrous sulphate), which is a different iron salt.

3103.90Fertilizers, mineral or chemical; phosphatic, n.e.c. in heading no. 31033808.99Rodenticides and other similar products n.e.c. in heading no. 3808.9; other than containing goods specified in Subheading Note 1 in this Chapter, put up in forms or packings for retail sale or as preparations or articles38.08Insecticides, rodenticides, fungicides, herbicides, anti-sprouting products, plant growth regulators, disinfectants and the like, put up in forms or packings for retail sale or as preparations or articles2833.29Sulphates; n.e.c. in item no. 2833.2

Top exporters and importers of HS 283529 (the code used for ferric phosphate), 2025

In 2025, the largest exporter of HS 283529 (the code used for ferric 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 ferric phosphate.

Top exporters 2025 · share of world exports

  1. 1 China $80M
  2. 2 France $51M
  3. 3 Germany $49M

World total: $295M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Indonesia $47M
  2. 2 United States $36M
  3. 3 Thailand $34M

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 ferric phosphate

Brazil splits HS 2835.29 into 9 NCM codes. Pick the one that matches your product:

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about ferric phosphate

What is the HS code for Ferric phosphate?

The HS code for Ferric 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 standard HS code for ferric phosphate as a chemical substance is 2835.29.

How do I classify Ferric phosphate for customs?

Ferric 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.

Is ferric phosphate classified differently if used in food?

Generally, no. Pure ferric phosphate used for food fortification is still classified under 2835.29, though specific national customs may require additional health certifications.

Which countries are the top exporters of ferric phosphate (HS 283529)?

In 2025, the top exporters of HS 283529 (the code used for ferric 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 ferric phosphate (HS 283529)?

In 2025, the top importers of HS 283529 (the code used for ferric 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 Ferric phosphate the same in all countries?

The base HS code 283529 for Ferric 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 ferric phosphate in Brazil?

Brazil splits HS 283529 into 9 NCM codes, so the right one for ferric 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.