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HSChapter 39
U.S. exports of polyvinyl chloride (pvc), unmixed, in primary forms (HS 390410) totaled $186.8M in July 2026.
Importers of Polyvinyl Chloride (PVC), Unmixed, in Primary Forms paid $1.2M in duties in July 2026 — an effective duty rate of 14% on $8.4M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataUnmixed PVC — polyvinyl chloride not blended with plasticizers, stabilizers, or other compounding ingredients — is the base resin form used by compounders and processors who formulate their own compounds downstream. Classified under a single US tariff line (3904100000), this grade is distinct from the mixed or compounded PVC resins of headings 3904.21 and 3904.22. Canada is the leading supplier to the US, consistent with integrated North American chlor-alkali and vinyl production chains, with Germany and Mexico also significant sources. USMCA origin qualification is a routine consideration for Canadian and Mexican shipments.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
440 shipments/mo
Heading 3904.10 covers PVC that has not been mixed with any other substance — essentially the pure homopolymer resin as produced. Once the resin is compounded with plasticizers, stabilizers, fillers, or other additives, it falls under 3904.21 (nonplasticized mixtures) or 3904.22 (plasticized mixtures). The distinction turns on whether any compounding has occurred prior to import.
K-value (a measure of degree of polymerization) is a critical commercial specification: lower K-values (e.g., K-57 to K-65) are preferred for rigid applications like pipe and profiles, while higher K-values (K-67 to K-80) suit flexible applications. All grades classify identically under 3904100000, but buyers must specify K-value in purchase contracts and verify it against supplier certificates of analysis, as mismatched grades can cause processing failures.
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ImportsExports
Imports
$21.5MYoY · Pro
Exports
$186.8MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Subheading 2 of 9 in heading 3904
Subheading 390410 · $21.5M of $88.8M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3904100000 | Polyvinyl Chloride,not Mixed With Any Oth Substanc | $21.5M | 5.61% | 39.23% | $1.2M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3904100000 | Polyvinyl Chloride,not Mixed With Any Oth Substanc | $186.8M |
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.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
60.7% enters free of duty; the effective duty rate is 5.61%.