HS code · 6-digit subheading
HS Code 2923.30 – Quaternary ammonium salts and hydroxides; tetraethylammonium perfluorooctane sulphonate, whether or not chemically defined
HS code 2923.30 is the 6-digit subheading for quaternary ammonium salts and hydroxides, tetraethylammonium perfluorooctane sulphonate, whether or not chemically defined. It is used for tetraethylammonium perfluorooctane sulfonate, TEA-PFOS, quaternary ammonium perfluorooctane sulfonate, specialty surfactants and pharmaceutical intermediates.
What HS 2923.30 covers
This specific HS code covers tetraethylammonium perfluorooctane sulphonate, a specialized chemical compound belonging to the broader class of quaternary ammonium salts and hydroxides. In international trade, these chemicals are crucial intermediates and active ingredients, primarily used in the pharmaceutical industry as counterions or phase transfer catalysts, and in analytical chemistry for various applications. They also find use in the formulation of certain industrial surfactants and specialty coatings due to their unique surface-active properties. Major importers are typically pharmaceutical manufacturers, chemical research labs, and specialty chemical distributors in developed economies with strong R&D sectors. Exporters are often large chemical producers in countries with advanced chemical synthesis capabilities. Key things to know include the high purity requirements for pharmaceutical applications and the strict regulatory oversight due to their chemical nature and potential environmental impact, especially concerning perfluorinated compounds. The trade volume might not be massive but the value per unit is often high due to its specialized nature.
- Covers
- Tetraethylammonium perfluorooctane sulfonate
- TEA-PFOS
- Quaternary ammonium perfluorooctane sulfonate
- Specialty surfactants
- Pharmaceutical intermediates
- Analytical reagents
- Examples
- Sigma-Aldrich TEA-PFOS
- TCI America Tetraethylammonium Perfluorooctanesulfonate
- Alfa Aesar TEA-PFOS
Codes often confused with 2923.30
Common mistake. This code might be confused with other specific quaternary ammonium salts under 292390 if the exact chemical identity is not clearly specified, or with general perfluorinated compounds in other chapters if its primary function as a quaternary ammonium salt is overlooked.
Top exporters and importers of HS code 292330, 2025
In 2025, the largest exporter of HS code 292330 in UN Comtrade data was the United States, with 51% of world exports; the largest importer in UN Comtrade data was the Netherlands, with 32% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 United States $164K 51% of world exports
- 2 Norway $55K 17% of world exports
- 3 Peru* ~$29K 9.1% of world exports · partner records ↗
World total: $321K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Netherlands $786K 32% of world imports
- 2 India $563K 23% of world imports
- 3 Sweden $214K 8.7% of world imports
World total: $2.5M 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 2923.30
Brazil does not split HS 2923.30: its NCM code is 2923.30.00.
All Brazil NCM codes in heading 29.23 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2923.30
What is HS code 292330?
HS code 292330 is a 6-digit subheading in the Harmonized System that covers: Quaternary ammonium salts and hydroxides; tetraethylammonium perfluorooctane sulphonate, whether or not chemically defined. This specific HS code covers tetraethylammonium perfluorooctane sulphonate, a specialized chemical compound belonging to the broader class of quaternary ammonium salts and hydroxides. In international trade, these chemicals are crucial intermediates and active ingredients, primarily used in the pharmaceutical industry as counterions or phase transfer catalysts, and in analytical chemistry for various applications. They also find use in the formulation of certain industrial surfactants and specialty coatings due to their unique surface-active properties. Major importers are typically pharmaceutical manufacturers, chemical research labs, and specialty chemical distributors in developed economies with strong R&D sectors. Exporters are often large chemical producers in countries with advanced chemical synthesis capabilities. Key things to know include the high purity requirements for pharmaceutical applications and the strict regulatory oversight due to their chemical nature and potential environmental impact, especially concerning perfluorinated compounds. The trade volume might not be massive but the value per unit is often high due to its specialized nature.
What products fall under HS code 292330?
Tetraethylammonium perfluorooctane sulfonate, TEA-PFOS, Quaternary ammonium perfluorooctane sulfonate, Specialty surfactants, Pharmaceutical intermediates, Analytical reagents
What are common misclassifications for HS code 292330?
This code might be confused with other specific quaternary ammonium salts under 292390 if the exact chemical identity is not clearly specified, or with general perfluorinated compounds in other chapters if its primary function as a quaternary ammonium salt is overlooked.
Which countries are the top exporters of goods under HS code 292330?
In 2025, the top exporters of HS code 292330 in UN Comtrade data were the United States ($164K, 51% of world exports), Norway ($55K) and Peru (about $29K). World exports came to about $321K, 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 292330?
In 2025, the top importers of HS code 292330 in UN Comtrade data were the Netherlands ($786K, 32% of world imports), India ($563K) and Sweden ($214K). World imports came to about $2.5M, 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.
How is HS code 292330 structured?
HS code 292330 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (23) identify the heading, and digits 5-6 (30) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 292330?
In Brazil, HS code 292330 is NCM 2923.30.00. The last two digits are 00 because Brazil does not split this HS code further.