U.S. exports of vinyl polymers in primary forms, not elsewhere specified (HS 390599) totaled $20.7M in August 2026.
Importers of Vinyl Polymers in Primary Forms, Not Elsewhere Specified paid $453K in duties in August 2026, an effective tariff rate of 11.27% of the $4.0M imported — duty actually collected as a share of that value, not the published tariff schedule.
Last updated: August 2026 dataThe residual vinyl polymer heading covers primary-form materials that do not fit more specific vinyl polymer subheadings, including the photoconductive specialty resin polyvinyl carbazole (3905993000) and a broad catch-all for other vinyl polymers (3905998000). Polyvinyl carbazole's use in electrophotographic and organic semiconductor applications gives this heading an electronics-supply-chain dimension uncommon among commodity polymer headings. Germany leads US import supply, with Taiwan, China, and Japan also significant sources — a supplier mix that reflects both European specialty chemical production and Asian electronics-oriented polymer manufacturing.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
156 shipments/mo
Polyvinyl carbazole (PVK) is specifically named at the 10-digit level (3905993000) and is identified by its carbazole pendant groups, which confer photoconductive and charge-transport properties. All other vinyl polymers in primary forms not classifiable in a more specific heading fall under 3905998000. Importers should confirm the polymer's chemical identity with the manufacturer's specification sheet.
Vinyl polymers under heading 3905 from China have been subject to Section 301 tariffs, though the specific applicability depends on the tariff line and any product-specific exclusions in effect at the time of entry. Importers sourcing from China should verify current Section 301 status with a licensed customs broker before shipment.
HSChapter 39
Subheading 2 of 7 in heading 3905
Subheading 390599 · $20.7M of $75.1M
ImportsExports
Imports
$4.0MYoY · free account
Exports
$20.7MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $41.6M of Vinyl Polymers in Primary Forms, Not Elsewhere Specified.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Mexico and Korea, South together take 47% of it.
customs district
origin
entry
rate provision · imports
16.9% enters free of duty; duty collected equals 11.27% of total import value.
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 |
|---|---|---|---|---|---|
| 3905998000 | Other Vinyl Polymers in Primary Forms,NESOI | $4.0M | 11.24% | 82.60% | $444K |
| 3905993000 | Polyvinyl Carbazole (Including Adjuvants) | $67K | 13.28% | 98.08% | $9K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3905998000 | Other Vinyl Polymers in Primary Forms,NESOI | $20.5M |
| 3905993000 | Polyvinyl Carbazole (Including Adjuvants) | $165K |
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.
Trade Directory
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