U.S. imports of Epoxides, Epoxyalcohols, Epoxyphenols & Epoxyethers (NES) (SITC 51615) totaled $16.1M in August 2026, imported from 25 countries.
Importers of Epoxides, Epoxyalcohols, Epoxyphenols & Epoxyethers (NES) paid $2.2M in duties in August 2026, an average duty rate of 14.27% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Epoxides, Epoxyalcohols, Epoxyphenols & Epoxyethers (NES) imports of $16.1M in August 2026 ran 28% above the year-to-date monthly average of $12.5M.
Last updated: August 2026 dataBeyond the major commodity epoxides covered in dedicated headings, this residual category captures three-membered ring epoxy compounds — including epoxyalcohols, epoxyphenols, and epoxyethers — along with their halogenated, sulfonated, nitrated, or nitrosated derivatives not elsewhere specified. These specialty epoxides serve as reactive diluents, chiral building blocks, and crosslinking agents in coatings, adhesives, and pharmaceutical synthesis. Correct classification requires confirming that the compound is not more specifically provided for under a named epoxide heading, making chemical identity documentation essential.
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103 import shipments a month
Classification in an NES heading requires ruling out all more-specific provisions. Importers should provide the full chemical name, CAS registry number, and structural formula to their customs broker, who can cross-reference against named epoxide headings (such as ethylene oxide or propylene oxide) and any applicable CBP binding rulings before filing the entry.
Enantiopure epoxides — such as glycidol derivatives and styrene oxide isomers — are valued as chiral synthons for active pharmaceutical ingredient synthesis. Their import may trigger FDA review if they are intended as drug intermediates, and suppliers must typically provide documentation of stereochemical purity alongside standard certificates of analysis.
Basic heading 204 of 465 in section 5
Basic heading 51615 · $16.1M of $27.5B
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Imports · August 2026
origin
Thailand and South Korea together supply 60% of it. China pays 42.7% duty; Italy 10.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$16.1MYoY · free account
Exports
$6.9MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $132.8M of Epoxides, Epoxyalcohols, Epoxyphenols & Epoxyethers (NES) and exported $129.5M.
Through August 2026. Source: U.S. Census Bureau.