HS code · 6-digit subheading
HS Code 2934.10 – Heterocyclic compounds; containing an unfused thiazole ring (whether or not hydrogenated) in the structure
HS code 2934.10 is the 6-digit subheading for heterocyclic compounds, containing an unfused thiazole ring (whether or not hydrogenated) in the structure. It is used for 2-Aminothiazole, 2-Bromothiazole, 4-Methylthiazole, thiazole-2-carboxylic acid and 2-Mercaptothiazole.
What HS 2934.10 covers
These compounds are crucial building blocks in the pharmaceutical and agrochemical industries, often serving as intermediates for synthesizing more complex molecules. Thiazole rings are known for their biological activity, making them valuable in drug discovery and development. Major importers are typically countries with strong chemical manufacturing sectors, such as China, India, Germany, and the United States, where these compounds are processed further into active pharmaceutical ingredients (APIs) or pesticides. Exporters include specialized chemical manufacturers globally, with a significant presence in regions known for advanced chemical synthesis capabilities. Key things to know include the purity requirements, which are often stringent for pharmaceutical applications, and the regulatory hurdles associated with handling and transporting these specialized chemicals. Their trade is driven by the demand for new medicines, crop protection agents, and various industrial applications where their unique chemical properties are leveraged. The market is influenced by R&D investments in life sciences and agricultural innovation.
- Covers
- 2-Aminothiazole
- 2-Bromothiazole
- 4-Methylthiazole
- Thiazole-2-carboxylic acid
- 2-Mercaptothiazole
- 2-Amino-4-methylthiazole
- Examples
- Sulfathiazole (antibiotic component)
- Ritonavir (HIV drug component)
- Thiamine (Vitamin B1 precursor)
- Cefazolin (antibiotic precursor)
Codes often confused with 2934.10
Common mistake. This code might be confused with other heterocyclic compounds under 2934.99 if the specific thiazole ring structure is not clearly identified, or with 2934.20 if a benzothiazole ring is present, as both involve sulfur-containing heterocycles.
Top exporters and importers of HS code 293410, 2025
In 2025, the largest exporter of HS code 293410 in UN Comtrade data was Portugal, with 27% of world exports; the largest importer in UN Comtrade data was the United States, with 17% 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 Portugal $425M 27% of world exports
- 2 China $305M 20% of world exports
- 3 Ireland $233M 15% of world exports
World total: $1.6B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $388M 17% of world imports
- 2 Switzerland $381M 16% of world imports
- 3 Brazil $284M 12% of world imports
World total: $2.3B 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 2934.10 4
Brazil splits HS 2934.10 into 4 NCM codes, Mercosur's 8-digit tariff lines.
- 2934.10.10 FentiazacFentiazac
- 2934.10.20 Thiazolidine hydrochlorideCloridrato de tiazolidina
- 2934.10.30 ThiabendazoleTiabendazol
- 2934.10.90 Other unfused thiazole ring compoundsOutros
All Brazil NCM codes in heading 29.34 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2934.10
What is HS code 293410?
HS code 293410 is a 6-digit subheading in the Harmonized System that covers: Heterocyclic compounds; containing an unfused thiazole ring (whether or not hydrogenated) in the structure. These compounds are crucial building blocks in the pharmaceutical and agrochemical industries, often serving as intermediates for synthesizing more complex molecules. Thiazole rings are known for their biological activity, making them valuable in drug discovery and development. Major importers are typically countries with strong chemical manufacturing sectors, such as China, India, Germany, and the United States, where these compounds are processed further into active pharmaceutical ingredients (APIs) or pesticides. Exporters include specialized chemical manufacturers globally, with a significant presence in regions known for advanced chemical synthesis capabilities. Key things to know include the purity requirements, which are often stringent for pharmaceutical applications, and the regulatory hurdles associated with handling and transporting these specialized chemicals. Their trade is driven by the demand for new medicines, crop protection agents, and various industrial applications where their unique chemical properties are leveraged. The market is influenced by R&D investments in life sciences and agricultural innovation.
What products fall under HS code 293410?
2-Aminothiazole, 2-Bromothiazole, 4-Methylthiazole, Thiazole-2-carboxylic acid, 2-Mercaptothiazole, 2-Amino-4-methylthiazole
What are common misclassifications for HS code 293410?
This code might be confused with other heterocyclic compounds under 2934.99 if the specific thiazole ring structure is not clearly identified, or with 2934.20 if a benzothiazole ring is present, as both involve sulfur-containing heterocycles.
Which countries are the top exporters of goods under HS code 293410?
In 2025, the top exporters of HS code 293410 in UN Comtrade data were Portugal ($425M, 27% of world exports), China ($305M) and Ireland ($233M). World exports came to about $1.6B, 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 293410?
In 2025, the top importers of HS code 293410 in UN Comtrade data were the United States ($388M, 17% of world imports), Switzerland ($381M) and Brazil ($284M). World imports came to about $2.3B, 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 293410 structured?
HS code 293410 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (34) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 293410?
Brazil splits HS code 293410 into 4 NCM codes: 2934.10.10 (Fentiazac), 2934.10.20 (Thiazolidine hydrochloride), 2934.10.30 (Thiabendazole), 2934.10.90 (Other unfused thiazole ring compounds). The first 6 digits of each match the HS code.