HSChapter 39
U.S. imports of cellular polystyrene plates, sheets, film, foil & strip (HS 392111) totaled $17.7M in May 2026, traded with 45 countries.
Importers of Cellular Polystyrene Plates, Sheets, Film, Foil & Strip paid $614K in duties in May 2026 โ an effective duty rate of 17% on $3.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Cellular Polystyrene Plates, Sheets, Film, Foil & Strip imports of $17.7M in May 2026 ran 28% above the year-to-date monthly average of $13.8M.
Last updated: May 2026 dataExpanded and extruded polystyrene (EPS/XPS) in flat form โ used extensively in construction insulation, protective packaging, and cold-chain applications โ enters the US under a single 10-digit line (3921110000). Canada and Mexico together account for the dominant share of US imports, a pattern driven by integrated North American supply chains and USMCA-eligible production. Germany is a notable additional source for higher-specification extruded grades used in building envelope applications.
AI-written summary of the official U.S. Census Bureau trade figures on this page โ verify before relying on it.
Cellular (foam) forms โ whether expanded bead-type EPS or extruded XPS โ classify under heading 3921, while non-cellular polystyrene sheet and film classify under heading 3920. The presence of a closed- or open-cell foam structure is the operative distinction; density and compressive-strength data from the manufacturer typically confirm cellular character.
While federal customs entry does not require a special permit for polystyrene foam sheet, importers should be aware that several US states have enacted restrictions or bans on certain polystyrene foam products for food-service use. Compliance with destination-state regulations is separate from federal HTS classification and should be verified before distribution.
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3921110000 | PLATES,SHEETS,FILM,FOIL,STRIP,CELL,PLYM OF STYRENE | $16.6M | 4.66% | 29.45% | $776K |
PLATES,SHEETS,FILM,FOIL,STRIP,CELL,PLYM OF STYRENE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3921110000 | PLATES,SHEETS,FILM,FOIL,STRIP,CELL,PLYM OF STYRENE | $10.2M |
PLATES,SHEETS,FILM,FOIL,STRIP,CELL,PLYM OF STYRENE
2.0M 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
Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $12.9M | $5.9M | -$7.0M |
| MEXICO | $1.1M | $2.1M | +$980K |
| GERMANY | $1.1M | $496K | -$607K |
| GREECE | $774K | -- | -$774K |
| UNITED KINGDOM | $62K | $631K | +$569K |
| State | Imports | Exports | Balance |
|---|---|---|---|
| New York | $2.1M | $674K | -$1.4M |
| California | $1.7M | $1.0M | -$646K |
| Michigan | $1.9M | $713K | -$1.1M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SWEETGRASS, MT | $2.6M | $872K | -$1.7M |
| ALEXANDRIA BAY, NY | $2.0M | -- | -$2.0M |
| CHAMPLAIN-ROUSES POINT, NY | $1.2M | $526K | -$722K |