Product classification
HS code for Potassium iodate: 2829.90
Perchlorates, bromates and perbromates, iodates and periodates.
Classification of potassium iodate under HS 2829.90
Potassium iodate is classified under HS code 2829.90, which specifically covers perchlorates, bromates, iodates, and periodates. This classification is determined by the chemical composition of the substance as an inorganic salt of iodic acid. According to the General Rules for the Interpretation (GIR) of the Harmonized System, specifically GIR 1, classification is determined by the terms of the headings and any relative section or chapter notes. Chapter 28 covers inorganic chemicals, and heading 2829 specifically addresses salts of oxometallic or peroxometallic acids of halogens. Potassium iodate (KIO3) fits this description perfectly as an iodate salt. The product is typically presented as a white crystalline powder and is widely used in the food industry for the iodization of table salt to prevent iodine deficiency disorders. It is also utilized in analytical chemistry as an oxidizing agent and in the manufacture of certain pharmaceuticals. The classification remains consistent regardless of the grade, whether it is food-grade, pharmaceutical-grade, or technical-grade, provided it is a separate chemically defined compound. If the product is mixed with other substances, such as anti-caking agents in high concentrations, it might be classified elsewhere, but pure potassium iodate is strictly 2829.90. The Explanatory Notes to the Harmonized System for heading 2829 confirm that this heading includes iodates of the formula MIO3. Potassium iodate is the most common commercial example of these salts. It is more stable than potassium iodide, which is why it is preferred for salt fortification in tropical climates. Proper documentation must specify the chemical purity to ensure the 2829.90 code is applied correctly by customs authorities globally.
- Covers
- Food-grade potassium iodate
- Technical-grade potassium iodate
- Pharmaceutical-grade potassium iodate
- Potassium iodate crystalline powder
- Potassium iodate reagent solutions
- Also under 2829.90
- American Pacific Corporation Ammonium Perchlorate
- Sigma-Aldrich Potassium Perchlorate
- Alfa Aesar Sodium Bromate
- Merck KGaA Sodium Iodate
Codes often confused with 2829.90
Common mistake. Potassium iodate is frequently confused with potassium iodide, which falls under HS code 2827.60. While both are used for iodine supplementation, they are chemically distinct salts. It may also be misclassified under 2834.21 (potassium nitrate) due to similar crystalline appearances, though their chemical properties and acid radicals are entirely different.
Top exporters and importers of HS 282990 (the code used for potassium iodate), 2025
In 2025, the largest exporter of HS 282990 (the code used for potassium iodate) in UN Comtrade data was India, with 22% of world exports; the largest importer in UN Comtrade data was Belgium, with 9.7% 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 282990, not only potassium iodate.
Top exporters 2025 · share of world exports
- 1 India $75M 22% of world exports
- 2 United States $53M 16% of world exports
- 3 France $35M 10% of world exports
World total: $339M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Belgium $33M 9.7% of world imports
- 2 South Korea $29M 8.3% of world imports
- 3 Türkiye $21M 6.1% of world imports
World total: $343M 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 potassium iodate
Brazil splits HS 2829.90 into 11 NCM codes. Pick the one that matches your product:
- 2829.90.11Sodium bromate
- 2829.90.12Potassium bromate
- 2829.90.19Other bromates
- 2829.90.21Sodium perbromate
- 2829.90.22Potassium perbromate
- 2829.90.29Other perbromates
- 2829.90.31Potassium iodate
- 2829.90.32Calcium iodate
- 2829.90.39Other iodates
- 2829.90.40Periodates
- 2829.90.50Perchlorates
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about potassium iodate
What is the HS code for Potassium iodate?
The HS code for Potassium iodate is 282990 (Perchlorates; bromates and perbromates; iodates and periodates). The HS code for potassium iodate is 2829.90, which covers iodates and periodates.
How do I classify Potassium iodate for customs?
Potassium iodate is classified under HS code 282990 — Perchlorates; bromates and perbromates; iodates and periodates. This is a 6-digit subheading level code.
Is potassium iodate considered a hazardous material for shipping?
Yes, potassium iodate is a strong oxidizer and is typically classified as a Class 5.1 hazardous material for international transport.
Which countries are the top exporters of potassium iodate (HS 282990)?
In 2025, the top exporters of HS 282990 (the code used for potassium iodate) in UN Comtrade data were India ($75M, 22% of world exports), the United States ($53M) and France ($35M). World exports came to about $339M, 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 potassium iodate (HS 282990)?
In 2025, the top importers of HS 282990 (the code used for potassium iodate) in UN Comtrade data were Belgium ($33M, 9.7% of world imports), South Korea ($29M) and Türkiye ($21M). World imports came to about $343M, 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 Potassium iodate the same in all countries?
The base HS code 282990 for Potassium iodate 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 potassium iodate in Brazil?
Brazil splits HS 282990 into 11 NCM codes, so the right one for potassium iodate depends on the product's details: 2829.90.11 (Sodium bromate), 2829.90.12 (Potassium bromate), 2829.90.19 (Other bromates), 2829.90.21 (Sodium perbromate), 2829.90.22 (Potassium perbromate), 2829.90.29 (Other perbromates), and more.