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HSChapter 39
U.S. imports of vinylidene chloride polymers in primary forms (HS 390450) totaled $6.1M in May 2026, traded with 9 countries.
Importers of Vinylidene Chloride Polymers in Primary Forms paid $1.0M in duties in May 2026 — an effective duty rate of 17% on $6.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Vinylidene Chloride Polymers in Primary Forms imports of $6.1M in May 2026 ran 23% above the year-to-date monthly average of $4.9M.
Last updated: May 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.
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.
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3904500000 | VINYLIDENE CHLORIDE POLYMERS | $5.1M | 16.50% | 100.00% | $842K |
VINYLIDENE CHLORIDE POLYMERS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3904500000 | VINYLIDENE CHLORIDE POLYMERS | $269K |
VINYLIDENE CHLORIDE POLYMERS
34.5K 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
Supplier Network
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| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $2.8M | -- | -$2.8M |
| South Carolina | $930K | -- | -$930K |
| Iowa | $560K | -- | -$560K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $3.3M | -- | -$3.3M |
| WILMINGTON, NC | $930K | -- | -$930K |
| CHESTER, PA | $857K | -- | -$857K |