U.S. exports of Tetrahydrofuran (THF) (HS 293211) totaled $962K in August 2026.
Importers of Tetrahydrofuran (THF) paid $11K in duties in August 2026, an average duty rate of 10.73% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Tetrahydrofuran (THF) imports of $103K in August 2026 ran 33% above the year-to-date monthly average of $78K.
Last updated: August 2026 dataTetrahydrofuran (THF) is a high-volume cyclic ether solvent widely used in pharmaceutical manufacturing, polymer production (particularly spandex/polyurethane via polytetramethylene ether glycol), and as a reaction medium in fine chemical synthesis. South Korea and Taiwan are the leading US import sources, reflecting the concentration of large-scale THF production capacity in East Asia. Classified under a single 10-digit line (2932110000), THF imports from China-origin sources may be subject to Section 301 tariffs, though South Korean and Taiwanese supply chains are not affected by those measures.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
8 import shipments a month
South Korea and Taiwan host integrated petrochemical complexes with large-scale 1,4-butanediol (BDO) production, and THF is a co-product or derivative of BDO synthesis. This feedstock integration gives East Asian producers a significant cost advantage, making them the dominant export sources for the US market.
THF is a flammable liquid classified as a hazardous material under DOT regulations, requiring proper IMDG/IATA labeling for ocean and air shipments. Importers should also ensure Safety Data Sheets are current and that the commercial invoice accurately reflects the chemical name and CAS number (109-99-9) to support correct HTS classification under 2932110000.
Subheading 5 of 13 in heading 2932
Subheading 293211 · $962K of $42.5M
ImportsExports
Imports
$103KYoY · free account
Exports
$962KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.1M of Tetrahydrofuran (THF) and exported $9.9M.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Belgium and Mexico together take 74% of it.
customs district
origin
entry
rate provision · imports
duty collected equals 10.73% of imports for consumption.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2932110000 | Tetrahydrofuran | $103K | 10.73% | 100.00% | $11K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2932110000 | Tetrahydrofuran | $962K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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