Product classification

HS code for Sodium nitrate fertilizer: 3102.50

Fertilizers, mineral or chemical, nitrogenous, sodium nitrate.

Classification of sodium nitrate fertilizer under HS 3102.50

Sodium nitrate fertilizer is classified under HS code 3102.50. This classification is determined by the General Rules of Interpretation (GRI) 1 and 6, as well as Note 2 to Chapter 31 of the Harmonized System. According to these notes, sodium nitrate, whether or not pure, is specifically included in heading 31.02 as a nitrogenous mineral or chemical fertilizer. Unlike many other chemical compounds that must be impure to be classified in Chapters 31, sodium nitrate is an exception; even in its chemically pure state, it remains in Chapter 31 rather than Chapter 28 (Inorganic Chemicals), provided it is not put up in the forms or packages described in heading 31.05. This classification covers both the naturally occurring mineral known as Chile saltpeter and the synthetically produced version. The primary factor for this classification is the chemical identity of the substance as a nitrogen-source for soil enrichment, which the HS nomenclature prioritizes for this specific compound.

Covers
  • Natural sodium nitrate (Chile saltpeter)
  • Synthetic sodium nitrate for agricultural use
  • Refined sodium nitrate used as a nitrogenous fertilizer
  • Sodium nitrate crystals or prills intended for soil application
Also under 3102.50
  • SQM Chilean Nitrate
  • YaraLiva Nitrabor (contains sodium nitrate)
  • Haifa-Cal (contains sodium nitrate)
  • ICL Specialty Fertilizers Sodium Nitrate.

Codes often confused with 3102.50

Common mistake. Sodium nitrate is frequently misclassified under HS code 2834.21. While 2834.21 covers nitrates of potassium, sodium nitrate is often confused with it because Chapter 28 generally covers pure inorganic chemicals. However, Note 2 to Chapter 31 explicitly directs sodium nitrate to 31.02. Another common error is using 3105.90 for mixtures; if the sodium nitrate is pure or a single substance, it must stay in 3102.50. Only when mixed with other fertilizing elements like phosphorus or potassium does it move to 31.05.

2834.21Nitrates; of potassium3105.90Fertilizers, mineral or chemical; n.e.c. in heading no. 3105

Top exporters and importers of HS 310250 (the code used for sodium nitrate fertilizer), 2025

In 2025, the largest exporter of HS 310250 (the code used for sodium nitrate fertilizer) in UN Comtrade data was Chile, with 33% of world exports; the largest importer in UN Comtrade data was the United States, with 16% 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 310250, not only sodium nitrate fertilizer.

Top exporters 2025 · share of world exports

  1. 1 Chile $39M
  2. 2 China $39M
  3. 3 United States $11M

World total: $119M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 United States $26M
  2. 2 United Arab Emirates* ~$23M
  3. 3 Canada $9.0M

World total: $157M 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 codes for sodium nitrate fertilizer

Brazil splits HS 3102.50 into 3 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.

EU Regulatory Requirements

This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.

Questions about sodium nitrate fertilizer

What is the HS code for Sodium nitrate fertilizer?

The HS code for Sodium nitrate fertilizer is 310250 (Fertilizers, mineral or chemical; nitrogenous, sodium nitrate). The HS code for sodium nitrate fertilizer is 3102.50, which specifically identifies it as a nitrogenous mineral or chemical fertilizer.

How do I classify Sodium nitrate fertilizer for customs?

Sodium nitrate fertilizer is classified under HS code 310250 — Fertilizers, mineral or chemical; nitrogenous, sodium nitrate. This is a 6-digit subheading level code.

Is pure sodium nitrate classified differently than agricultural grade?

No, according to Chapter 31 Note 2, sodium nitrate is classified under 3102.50 whether or not it is chemically pure, which is a unique exception in the HS nomenclature for fertilizers.

Which countries are the top exporters of sodium nitrate fertilizer (HS 310250)?

In 2025, the top exporters of HS 310250 (the code used for sodium nitrate fertilizer) in UN Comtrade data were Chile ($39M, 33% of world exports), China ($39M) and the United States ($11M). World exports came to about $119M, 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 sodium nitrate fertilizer (HS 310250)?

In 2025, the top importers of HS 310250 (the code used for sodium nitrate fertilizer) in UN Comtrade data were the United States ($26M, 16% of world imports), the United Arab Emirates (about $23M) and Canada ($9.0M). World imports came to about $157M, 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 Sodium nitrate fertilizer the same in all countries?

The base HS code 310250 for Sodium nitrate fertilizer 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 sodium nitrate fertilizer in Brazil?

Brazil splits HS 310250 into 3 NCM codes, so the right one for sodium nitrate fertilizer depends on the product's details: 3102.50.11 (Natural sodium nitrate, 16.3% nitrogen or less), 3102.50.19 (Other natural sodium nitrate), 3102.50.90 (Other sodium nitrate, not natural).