Harmonized System
U.S. exports of Monoalkyl Ethers of Mono- or Di-Ethylene Glycols (Excluding Monobutyl) (HS 290944) totaled $11.6M in August 2026.
Importers of Monoalkyl Ethers of Mono- or Di-Ethylene Glycols (Excluding Monobutyl) paid $43K in duties in August 2026, an average duty rate of 10.16% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Monoalkyl Ethers of Mono- or Di-Ethylene Glycols (Excluding Monobutyl) imports of $427K in August 2026 ran 24% above the year-to-date monthly average of $343K.
Last updated: August 2026 dataMonomethyl ethers of ethylene and diethylene glycol (2909440110) are important solvents in semiconductor photoresist formulations and specialty coatings, making this heading particularly relevant to electronics supply chains. The residual line (2909440150) captures other monoalkyl variants used across industrial cleaning, ink, and pharmaceutical solvent applications. France and South Korea are the leading US suppliers, with Taiwan and Japan also significant sources. Importers should note that certain glycol ethers, including methyl cellosolve, carry reproductive toxicity classifications under GHS, which may trigger additional labeling and SDS requirements.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
17 import shipments a month
Monomethyl ethers of ethylene glycol (methyl cellosolve) and diethylene glycol are used as solvents in photoresist and coating applications for semiconductor fabrication. However, several of these compounds carry reproductive and developmental toxicity classifications, prompting many manufacturers to substitute them with less hazardous alternatives. Importers supplying electronics customers should confirm whether the specific compound meets the buyer's restricted substances list requirements.
Line 2909440110 covers specifically monomethyl ethers of mono- or di-ethylene glycols, while 2909440150 is the residual provision for all other monoalkyl ethers of mono- or di-ethylene glycols not elsewhere specified. Classification turns on whether the alkyl group is methyl; any other alkyl group (ethyl, propyl, etc., excluding butyl which has its own heading) falls to the NESOI line.
Subheading 5 of 10 in heading 2909
Subheading 290944 · $11.6M of $481.6M
Trade Directory
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ImportsExports
Imports
$427KYoY · free account
Exports
$11.6MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $4.0M of Monoalkyl Ethers of Mono- or Di-Ethylene Glycols (Excluding Monobutyl) and exported $114.9M.
Through August 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 2909440150 | Monoalkyl Ethers of Mono or Di-Ethylene Glyc NESOI | $265K | 10.00% | 100.00% | $26K |
| 2909440110 | Monomethyl Ethers of Mono or Di-Ethylene Glycols | $162K | 10.43% | 100.00% | $17K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2909440150 | Monoalkyl Ethers of Mono or Di-Ethylene Glyc NESOI | $8.7M |
| 2909440110 | Monomethyl Ethers of Mono or Di-Ethylene Glycols | $2.9M |
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.
Exports · August 2026
destination
Switzerland and Ireland together take 52% of it.
customs district
origin
entry
rate provision · imports
duty collected equals 10.16% of imports for consumption.