U.S. imports of Vinylidene Chloride Polymers in Primary Forms (HS 390450) totaled $5.0M in August 2026, imported from 12 countries.
Importers of Vinylidene Chloride Polymers in Primary Forms paid $574K in duties in August 2026, an average duty rate of 11.36% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataPolyvinylidene chloride (PVDC) is a high-barrier polymer prized for its exceptional resistance to oxygen, moisture, and aroma transmission, making it a critical material in food packaging films, pharmaceutical blister coatings, and specialty barrier laminates. Classified under 3904500000, PVDC is produced by a limited number of global manufacturers, giving the supply chain a concentrated character. France and Japan are the leading US import sources, reflecting the dominant global producers in those markets, with China also a notable supplier.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
45 import shipments a month
PVDC is a polymer of vinylidene chloride (1,1-dichloroethylene), classified under heading 3904.50, while PVC is a polymer of vinyl chloride (chloroethylene), classified under 3904.10–3904.40. The monomer structure — two chlorine atoms on the same carbon in vinylidene chloride versus one in vinyl chloride — is the chemical basis for the separate tariff treatment. Supplier certificates of analysis identifying the monomer are the standard classification support.
PVDC production is controlled by a small number of global producers, meaning supply disruptions at a single facility can have outsized market effects. Importers relying on French or Japanese sources should assess lead times, minimum order quantities, and the availability of qualified alternative suppliers before committing to long-term packaging specifications that require PVDC.
Subheading 6 of 9 in heading 3904
Subheading 390450 · $5.0M of $92.0M
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ImportsExports
Imports
$5.0MYoY · free account
Exports
$169KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $58.8M of Vinylidene Chloride Polymers in Primary Forms and exported $2.1M.
Through August 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 3904500000 | Vinylidene Chloride Polymers | $5.0M | 11.36% | 100.00% | $574K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3904500000 | Vinylidene Chloride Polymers | $169K |
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.
Imports · August 2026
origin
France and China together supply 100% of it. China pays 44.0% duty; France 10.0%.
customs district
destination
entry
rate provision · imports
duty collected equals 11.36% of imports for consumption.