U.S. exports of Nonplasticized PVC Polymer Mixtures in Primary Forms (HS 390421) totaled $16.2M in August 2026.
Importers of Nonplasticized PVC Polymer Mixtures in Primary Forms paid $181K in duties in August 2026, an average duty rate of 7.47% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataNonplasticized PVC compounds — PVC mixed with stabilizers, lubricants, or other non-plasticizer additives but without flexible plasticizers — serve rigid-end applications such as window profiles, pipe fittings, and rigid sheet. The single US tariff line 3904210000 captures all such formulations. Canada and the Netherlands are leading suppliers, the latter reflecting European specialty compound producers with established US distribution. The absence of plasticizers is the defining technical and classification criterion separating this subheading from plasticized PVC under 3904.22.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
88 import shipments a month
The importer should obtain a supplier-issued technical data sheet or certificate of analysis confirming the absence of plasticizers (e.g., phthalates, adipates, or trimellitates) in the formulation. CBP may request this documentation during a CF-28 inquiry or audit. If the compound contains any plasticizer, even at low levels, reclassification under 3904.22 may be required.
Yes — both dry-blend powders and compounded pellets can classify under 3904.21 provided neither contains plasticizers and both are in primary forms as defined by Chapter 39. The physical presentation (powder vs. pellet) does not alter the heading, though it may affect the applicable specific tariff line if the schedule further subdivides by form.
Subheading 4 of 9 in heading 3904
Subheading 390421 · $16.2M of $346.8M
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 |
|---|---|---|---|---|---|
| 3904210000 | Other Polymers of Polyvinyl Chloride, Nonplastized | $2.4M | 7.47% | 34.30% | $181K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3904210000 | Other Polymers of Polyvinyl Chloride, Nonplastized | $16.2M |
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.
ImportsExports
Imports
$2.4MYoY · free account
Exports
$16.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $30.4M of Nonplasticized PVC Polymer Mixtures in Primary Forms and exported $136.1M.
Through August 2026. Source: U.S. Census Bureau.
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Exports · August 2026
destination
Mexico and Canada together take 78% of it.
customs district
origin
entry
rate provision · imports
65.7% enters free of duty; duty collected equals 7.47% of imports for consumption.