Product classification
HS code for Thiamine: 2936.22
Vitamins, vitamin B1 and its derivatives, unmixed.
Classification of thiamine under HS 2936.22
Thiamine, also known as Vitamin B1, is classified under HS code 2936.22. This code is situated within Chapter 29, which covers organic chemicals. Specifically, heading 2936 is dedicated to provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), and their derivatives used primarily as vitamins, provided they are not put up as medicaments. Subheading 2936.22 is the specific provision for Vitamin B1 and its derivatives. The classification logic follows Chapter Note 1 to Chapter 29, which states that the headings of this chapter apply only to separate chemically defined organic compounds. Thiamine meets this requirement as it is a specific chemical entity (C12H17N4OS+). The derivatives included under this code are those that retain the basic vitamin activity, such as thiamine hydrochloride and thiamine mononitrate. This classification is strictly for the bulk chemical form. If the thiamine is mixed with other vitamins or minerals, or if it is put up in measured doses (like tablets or capsules) for retail sale as a supplement or medicine, the classification shifts to Chapter 21 or Chapter 30. However, for the pure chemical substance used in food fortification or pharmaceutical manufacturing, 2936.22 is the correct designation.
- Covers
- Thiamine hydrochloride (pure bulk)
- Thiamine mononitrate (pure bulk)
- Synthetic Vitamin B1 powder
- Thiamine derivatives for vitamin use
- Crystalline thiamine for pharmaceutical use
- Also under 2936.22
- DSM
- BASF
- Zhejiang Medicine Co.
- Ltd.
- Brother Enterprises
- Huazhong Pharmaceutical
Codes often confused with 2936.22
Common mistake. Thiamine is often misclassified under 3004.50, which covers medicaments consisting of mixed or unmixed products for therapeutic or prophylactic uses, put up in measured doses. This error occurs when the bulk vitamin is confused with the retail-ready supplement. Another common misclassification is 2106.90 (food preparations), which is used for vitamin mixtures or supplements that do not meet the "separate chemically defined compound" rule of Chapter 29.
Top exporters and importers of HS 293622 (the code used for thiamine), 2025
In 2025, the largest exporter of HS 293622 (the code used for thiamine) in UN Comtrade data was China, with 51% of world exports; the largest importer in UN Comtrade data was the Netherlands, with 22% 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 293622, not only thiamine.
Top exporters 2025 · share of world exports
- 1 China $263M 51% of world exports
- 2 Netherlands $100M 19% of world exports
- 3 Germany $88M 17% of world exports
World total: $521M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Netherlands $109M 22% of world imports
- 2 United States $69M 14% of world imports
- 3 India $27M 5.5% of world imports
World total: $498M 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 thiamine
Brazil splits HS 2936.22 into 3 NCM codes. Pick the one that matches your product:
- 2936.22.10Thiamine (vitamin B1) hydrochloride
- 2936.22.20Thiamine (vitamin B1) mononitrate
- 2936.22.90Other vitamin B1 (thiamine) and derivatives
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about thiamine
What is the HS code for Thiamine?
The HS code for Thiamine is 293622 (Vitamins; vitamin B1 and its derivatives, unmixed). The HS code for pure thiamine (Vitamin B1) and its derivatives is 2936.22.
How do I classify Thiamine for customs?
Thiamine is classified under HS code 293622 — Vitamins; vitamin B1 and its derivatives, unmixed. This is a 6-digit subheading level code.
Is thiamine in tablet form classified here?
No, thiamine in tablet or capsule form for retail sale is typically classified under 3004.50 as a medicament or 2106.90 as a food supplement.
Which countries are the top exporters of thiamine (HS 293622)?
In 2025, the top exporters of HS 293622 (the code used for thiamine) in UN Comtrade data were China ($263M, 51% of world exports), the Netherlands ($100M) and Germany ($88M). World exports came to about $521M, 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 thiamine (HS 293622)?
In 2025, the top importers of HS 293622 (the code used for thiamine) in UN Comtrade data were the Netherlands ($109M, 22% of world imports), the United States ($69M) and India ($27M). World imports came to about $498M, 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 Thiamine the same in all countries?
The base HS code 293622 for Thiamine 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 thiamine in Brazil?
Brazil splits HS 293622 into 3 NCM codes, so the right one for thiamine depends on the product's details: 2936.22.10 (Thiamine (vitamin B1) hydrochloride), 2936.22.20 (Thiamine (vitamin B1) mononitrate), 2936.22.90 (Other vitamin B1 (thiamine) and derivatives).