Product classification
HS code for THF: 2932.11
Heterocyclic compounds, with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, tetrahydrofuran.
Classification of THF under HS 2932.11
Tetrahydrofuran (THF) is classified under HS code 2932.11 based on its chemical structure as a heterocyclic compound containing an unfused furan ring. According to the General Interpretative Rules (GIR) 1 and 6, the classification is determined by the specific description provided in the subheadings of heading 2932. Heading 2932 is designated for heterocyclic compounds with oxygen hetero-atom(s) only. Subheading 2932.11 specifically names tetrahydrofuran. The compound is a cyclic ether with the formula (CH2)4O. Because it contains a five-membered ring with four carbon atoms and one oxygen atom, and this ring is not fused to any other ring system, it meets the criteria for an "unfused furan ring" as specified in the tariff nomenclature. This classification is straightforward for the pure chemical or for THF containing stabilizers, provided the stabilizers do not render the product suitable for specific use rather than general use. THF is widely used as an industrial solvent and as a precursor to polymers like PTMEG, and its classification remains consistent across most global jurisdictions due to its specific mention in the Harmonized System.
- Covers
- Pure Tetrahydrofuran (THF)
- THF with added stabilizers (e.g., BHT)
- Reagent grade THF for laboratory use
- Industrial grade THF for polymer production
- THF used as a solvent in chromatography
- Also under 2932.11
- BASF Tetrahydrofuran
- LyondellBasell THF
- Mitsubishi Chemical THF
- Invista PTMEG (derived from THF)
Codes often confused with 2932.11
Common mistake. THF is sometimes misclassified under HS code 2932.19, which is the "other" category for compounds containing an unfused furan ring. However, since THF is explicitly named in 2932.11, the specific code must take precedence. Another common misclassification is HS code 3814.00, which covers organic composite solvents and thinners. If THF is part of a mixture of solvents, it belongs in 3814, but the pure substance must remain in 2932.11. Occasionally, it is confused with other cyclic ethers like 1,4-dioxane, which is classified under 2932.99.
Top exporters and importers of HS 293211 (the code used for THF), 2025
In 2025, the largest exporter of HS 293211 (the code used for THF) in UN Comtrade data was China, with 32% of world exports; the largest importer in UN Comtrade data was India, with 20% 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 293211, not only THF.
Top exporters 2025 · share of world exports
- 1 China $72M 32% of world exports
- 2 Germany $48M 22% of world exports
- 3 Belgium $22M 10.0% of world exports
World total: $221M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $48M 20% of world imports
- 2 South Korea $25M 10% of world imports
- 3 Belgium $23M 9.7% of world imports
World total: $235M 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 code for THF
Brazil classifies THF under NCM 2932.11.00: HS 2932.11 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about THF
What is the HS code for THF?
The HS code for THF is 293211 (Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, tetrahydrofuran). The HS code for Tetrahydrofuran is 2932.11. This is a specific code for the pure chemical compound.
How do I classify THF for customs?
THF is classified under HS code 293211 — Heterocyclic compounds; with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, tetrahydrofuran. This is a 6-digit subheading level code.
Is THF classified differently if it contains stabilizers?
No, as long as the stabilizers are added only for preservation or transport and do not change the product's character for a specific use, it remains under 2932.11.
Which countries are the top exporters of THF (HS 293211)?
In 2025, the top exporters of HS 293211 (the code used for THF) in UN Comtrade data were China ($72M, 32% of world exports), Germany ($48M) and Belgium ($22M). World exports came to about $221M, 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 THF (HS 293211)?
In 2025, the top importers of HS 293211 (the code used for THF) in UN Comtrade data were India ($48M, 20% of world imports), South Korea ($25M) and Belgium ($23M). World imports came to about $235M, 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 THF the same in all countries?
The base HS code 293211 for THF 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 THF in Brazil?
In Brazil, THF (HS 293211) is classified under NCM 2932.11.00.