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HSChapter 39
U.S. imports of copolymers of vinyl esters, in primary forms (HS 390591) totaled $8.5M in April 2026, traded with 16 countries.
Importers of Copolymers of Vinyl Esters, in Primary Forms paid $640K in duties in April 2026 — an effective duty rate of 7.8% on $8.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Copolymers of Vinyl Esters, in Primary Forms imports of $8.5M in April 2026 ran 17% above the year-to-date monthly average of $7.3M.
Last updated: April 2026 dataCopolymers of vinyl esters other than vinyl acetate — or mixed vinyl ester copolymers — in primary forms are subdivided under US tariff lines 3905911000 (containing 50% or more by weight of derivatives of vinyl acetate) and 3905915000 (all others), a split that requires careful compositional analysis at entry. These specialty polymers serve as binders, film formers, and adhesion promoters in coatings, inks, and adhesive systems. Taiwan and Japan lead US import supply, with Germany and the Netherlands also significant sources, reflecting the specialty chemical manufacturing strengths of those markets.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Line 3905911000 applies when the copolymer contains 50% or more by weight of units derived from vinyl acetate. Line 3905915000 covers all other vinyl ester copolymers in primary forms not meeting that threshold. The manufacturer's certificate of analysis stating monomer composition by weight percentage is the essential supporting document.
Yes — copolymers based on vinyl esters other than vinyl acetate (such as vinyl versatate or vinyl propionate) that do not fit a more specific heading in Chapter 39 can classify under 390591. The key is confirming that the polymer is based on a vinyl ester monomer and is in primary form. Where the classification is uncertain, a CBP binding ruling provides the most reliable guidance.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3905911000 | VINYL COPOLYMRS: CONT BY WT 50%+ DERIV OF VNYL ACE | $6.9M | 6.39% | $441K |
| 3905915000 | VINYL COPOLYMERS IN PRIMARY FORMS, NESOI | $1.6M | 15.01% | $198K |
VINYL COPOLYMRS: CONT BY WT 50%+ DERIV OF VNYL ACE
VINYL COPOLYMERS IN PRIMARY FORMS, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3905911000 | VINYL COPOLYMRS: CONT BY WT 50%+ DERIV OF VNYL ACE | $25.2M |
| 3905915000 | VINYL COPOLYMERS IN PRIMARY FORMS, NESOI | $8.2M |
VINYL COPOLYMRS: CONT BY WT 50%+ DERIV OF VNYL ACE
3.9M kg
VINYL COPOLYMERS IN PRIMARY FORMS, NESOI
1.6M 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 | $1.3M | $28.4M | +$27.1M |
| Illinois | $657K | $1.5M | +$890K |
| California | $1.3M | $11K | -$1.3M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $511K | $20.3M | +$19.8M |
| LOS ANGELES, CA | $2.8M | $2.7M | -$113K |
| PORT HURON, MI | $53K | $2.2M | +$2.1M |