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SITCSection 5
U.S. imports of polyacetals, primary forms (SITC 57411) totaled $5.8M in April 2026, traded with 25 countries.
Importers of Polyacetals, Primary Forms paid $256K in duties in April 2026 — an effective duty rate of 6.6% on $3.9M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataPolyacetals — commercially known as polyoxymethylene (POM) or acetal resin — are engineering thermoplastics prized for dimensional stability, low friction, and fatigue resistance in precision mechanical components such as gears, bearings, and fuel system parts. POM is traded in primary forms (pellets or granules) and is a key input for the automotive, consumer electronics, and industrial machinery sectors. Imports from China are subject to Section 301 tariffs, a cost factor that has prompted some US buyers to diversify sourcing toward producers in Japan, Germany, and South Korea.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Homopolymer acetal (Delrin-type) offers higher stiffness and surface hardness, while copolymer acetal provides better thermal and chemical stability with fewer centerline voids. Both are classified as polyacetals under this heading, but their distinct processing characteristics mean buyers should specify the grade clearly in purchase contracts and import documentation.
Section 301 tariffs on Chinese-origin polyacetal pellets have increased landed costs for US compounders and molders, prompting evaluation of alternative suppliers in Japan, Germany, and South Korea. Importers should confirm the current Section 301 list status of the applicable HTS subheading and assess whether first-sale valuation or other duty-mitigation strategies are appropriate.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $128K | $8.8M | +$8.7M |
| CHINA | $28K | $3.4M | +$3.4M |
| BRAZIL | -- | $3.3M | +$3.3M |
| KOREA, SOUTH | $1.8M | $935K | -$888K |
| CANADA | $11K | $1.9M | +$1.9M |
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Monthly import values over time