Product classification
HS code for Sodium chlorate: 2829.11
Chlorates, of sodium.
Classification of sodium chlorate under HS 2829.11
Sodium chlorate is classified under HS code 2829.11. This classification is governed by the General Rules for the Interpretation (GRI) of the Harmonized System, specifically focusing on the chemical composition of the substance. Chapter 28 of the Harmonized Tariff Schedule is dedicated to inorganic chemicals, precious metal compounds, and rare-earth metals. Within this chapter, heading 2829 covers chlorates and perchlorates, as well as bromates, perbromates, iodates, and periodates. The subheading 2829.11 is specifically allocated to sodium chlorate. This classification applies to the chemical in its pure form or as a technical grade product. Sodium chlorate is a strong oxidizing agent produced through the electrolysis of sodium chloride solutions. It is primarily used in the pulp and paper industry for the on-site generation of chlorine dioxide, a key bleaching agent. Because it is a clearly defined inorganic salt, it remains within Chapter 28 regardless of its industrial application, provided it has not been mixed with other ingredients to form a prepared chemical product or herbicide.
- Covers
- Technical grade sodium chlorate crystals
- Sodium chlorate in aqueous solution (pure)
- Granular sodium chlorate for industrial use
- Reagent grade sodium chlorate for laboratory analysis
- Sodium chlorate used as a precursor for chlorine dioxide production
- Also under 2829.11
- ERCO Worldwide Sodium Chlorate
- Arkema Sodium Chlorate
- Nouryon Sodium Chlorate
- Kemira Sodium Chlorate
Codes often confused with 2829.11
Common mistake. Sodium chlorate is frequently misclassified under HS code 3808.93, which covers herbicides and plant-growth regulators. While sodium chlorate is used as a non-selective herbicide, it only falls under heading 3808 if it is prepared in forms or packings for retail sale or as a preparation consisting of a mixture of active ingredients. If the product is pure sodium chlorate, it must remain in 2829.11. Another common error is confusing it with sodium hypochlorite (HS code 2828.90), which is also a bleaching agent but belongs to the hypochlorites heading. Additionally, it may be confused with sodium perchlorate, which is classified under 2829.90.
Top exporters and importers of HS 282911 (the code used for sodium chlorate), 2025
In 2025, the largest exporter of HS 282911 (the code used for sodium chlorate) in UN Comtrade data was Canada, with 60% of world exports; the largest importer in UN Comtrade data was the United States, with 42% of world imports. Russia did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 32% of its imports here ($8.5M, CEPII BACI), so it may rank higher.
Figures cover everything classified under HS 282911, not only sodium chlorate.
Top exporters 2025 · share of world exports
- 1 Canada $199M 60% of world exports
- 2 France $44M 13% of world exports
- 3 China $37M 11% of world exports
World total: $334M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $158M 42% of world imports
- 2 Sweden $25M 6.7% of world imports
- 3 Russia* ~$20M 5.2% of world imports · partner records ↗
Russia did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 32% of its imports here ($8.5M, CEPII BACI), so it may rank higher.
World total: $374M 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 sodium chlorate
Brazil classifies sodium chlorate under NCM 2829.11.00: HS 2829.11 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about sodium chlorate
What is the HS code for Sodium chlorate?
The HS code for Sodium chlorate is 282911 (Chlorates; of sodium). The international HS code for sodium chlorate is 2829.11, which specifically identifies the sodium salt within the category of chlorates.
How do I classify Sodium chlorate for customs?
Sodium chlorate is classified under HS code 282911 — Chlorates; of sodium. This is a 6-digit subheading level code.
Is sodium chlorate considered a hazardous material for shipping?
Yes, sodium chlorate is classified as a Class 5.1 oxidizing substance under the IMDG and IATA regulations. It requires specific hazardous material packaging, labeling, and documentation (UN number 1495) when being transported internationally, regardless of its HS code classification.
Which countries are the top exporters of sodium chlorate (HS 282911)?
In 2025, the top exporters of HS 282911 (the code used for sodium chlorate) in UN Comtrade data were Canada ($199M, 60% of world exports), France ($44M) and China ($37M). World exports came to about $334M, 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 chlorate (HS 282911)?
In 2025, the top importers of HS 282911 (the code used for sodium chlorate) in UN Comtrade data were the United States ($158M, 42% of world imports), Sweden ($25M) and Russia (about $20M). World imports came to about $374M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Russia did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 32% of its imports here ($8.5M, CEPII BACI), so it may rank higher.
Is the HS code for Sodium chlorate the same in all countries?
The base HS code 282911 for Sodium chlorate 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 chlorate in Brazil?
In Brazil, sodium chlorate (HS 282911) is classified under NCM 2829.11.00.