Loading...
HSChapter 39
U.S. imports of polyacetals, primary forms (HS 390710) 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—commonly marketed as POM (polyoxymethylene) or under trade names such as Delrin and Celcon—are engineering thermoplastics prized for their high stiffness, low friction, and dimensional stability in precision mechanical parts. South Korea and Germany are the leading US import sources, with Malaysia and Japan also supplying meaningful volumes. Classified under a single 10-digit line (3907100000), the heading is straightforward to classify but importers should be alert to Section 301 exposure when product is routed through or originates from affected jurisdictions. End-use sectors include automotive components, consumer electronics, and industrial gears and fasteners.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Polyacetals (heading 3907.10) are specifically defined by their repeating oxymethylene (-CH₂-O-) backbone, distinguishing them from broader polyether categories. Other polyethers not meeting this structural definition fall under 3907.29. Suppliers' chemical data sheets and CAS numbers help confirm the correct heading at entry.
Automotive OEM and Tier 1 suppliers are the largest consumers, using polyacetals for fuel system components, door handles, and seat belt parts. Consumer electronics and industrial machinery manufacturers also rely on POM for gears, bearings, and housings where metal replacement is sought. Demand tends to track automotive production cycles closely.
Supplier Network
Get discovered by U.S. importers searching for HS 390710 — Polyacetals, Primary Forms. Be the first supplier listed.
Monthly import values over time
| 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 |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3907100000 | POLYACETALS | $5.8M | 6.64% | $256K |
POLYACETALS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3907100000 | POLYACETALS | $24.5M |
POLYACETALS
7.5M kg
ARTICLES OF PLASTICS, NESOI
HS 392690
FLOOR, WALL, ETC COVERS, VINYL CHLORIDE POLYMERS
HS 391810
TABLEWARE AND KITCHENWARE OF PLASTICS
HS 392410
SACKS & BAGS (INCL CONES) OF POLYMERS OF ETHYLENE
HS 392321
HOUSEHOLD AND TOILET ARTICLES NESOI OF PLASTICS
HS 392490
PLATES, SHEETS ETC, NON-CELL ETC, POLYMER
HS 392010
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $99K | $8.9M | +$8.8M |
| West Virginia | $1.2M | $6.8M | +$5.6M |
| California | $151K | $1.8M | +$1.7M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | $2.4M | $5.1M | +$2.7M |
| HOUSTON, TX | $14K | $5.3M | +$5.3M |
| LAREDO, TX | $131K | $4.5M | +$4.4M |