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Official data Source: US Census Bureau international trade data Data through August 2026 · updated monthly

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HS 3921.13

Plates, sheets, film, foil and strip of plastics not elsewhere specified, cellular polyurethanes

In short

  • The US imported $317.2M of this product over the 12 months to August 2026, down 1.5% on the year before.
  • Canada is the largest supplier, with 29.4% of US imports; Mexico is next, with 23.4%.
  • Duty paid averaged 6.3% of the value of imports in August 2026, down 5.7 points on a year earlier.
  • Canada is gaining share: 26.0% over the last 12 months, up from 18.7%.
  • 2 Federal Register notices named this product's tariff codes in the last 12 months.
  • US exports were $663.4M over the last 12 months; the largest market is Mexico, with 41.3%.

US imports, Aug 2026

$31.2M

↑ +21% vs Aug 2025

Last 12 months

$317.2M

↓ −1.5% vs the 12 months before

Average duty paid

6.3%

↓ −5.7 pts vs Aug 2025

Top supplier

Canada

29.4% of US imports

US imports by month

The last 13 months, so the same month a year ago is on the left. August 2026 is highlighted. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAugIndia ↑Duty ↓
Show the numbers
MonthUS imports
August 2025$25.7M
September 2025$23.0M
October 2025$26.0M
November 2025$22.9M
December 2025$21.8M
January 2026$22.7M
February 2026$25.0M
March 2026$27.1M
April 2026$30.6M
May 2026$26.2M
June 2026$32.1M
July 2026$28.6M
August 2026$31.2M

What changed

  • US imports were $31.2M in August 2026, up 9.2% from July 2026 and up 21% from August 2025.
  • Over the 12 months to August 2026 they totalled $317.2M, down 1.5% on the 12 months before.
  • Biggest moves in market share since July 2026: Mexico up from 18.8% to 23.4%, India down from 7.6% to 3.3%.
  • Duty paid on imports from Thailand rose from 12.4% to 16.5% of their value since July 2026.
  • Duty paid on imports from Germany fell from 13.6% to 9.9% of their value since July 2026.

US trade by year

US imports were $317.2M in the 12 months to Aug 2026, up 15% on the 12 months to Aug 2017. US exports were $663.4M, up 19%. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

2017201820192020202120222023202420252026China ↑China ↓Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$275.9M
12 months to Aug 2018$301.0M
12 months to Aug 2019$244.6M
12 months to Aug 2020$216.7M
12 months to Aug 2021$342.5M
12 months to Aug 2022$356.6M
12 months to Aug 2023$295.3M
12 months to Aug 2024$319.4M
12 months to Aug 2025$322.0M
12 months to Aug 2026$317.2M
  • Canada
  • Mexico
  • Germany
  • Korea, South
  • All countries
Share of US imports
Show the numbers
PeriodCanadaMexicoGermanyKorea, South
12 months to Aug 201712.9%15.0%8.5%2.1%
12 months to Aug 201813.4%19.6%9.7%1.2%
12 months to Aug 201916.5%26.8%12.4%1.5%
12 months to Aug 202015.7%26.4%12.5%3.1%
12 months to Aug 202121.6%24.7%8.1%2.6%
12 months to Aug 202227.1%22.1%9.8%3.9%
12 months to Aug 202323.4%22.0%10.4%8.1%
12 months to Aug 202419.5%19.9%10.5%5.1%
12 months to Aug 202518.7%18.8%10.7%4.1%
12 months to Aug 202626.0%21.4%12.8%6.7%
Duty paid, % of value
Show the numbers
PeriodCanadaMexicoGermanyKorea, SouthAll countries
12 months to Aug 20170.0%0.2%4.2%1.0%3.4%
12 months to Aug 20180.0%1.1%4.4%1.1%3.4%
12 months to Aug 20190.0%2.3%4.7%1.5%4.6%
12 months to Aug 20200.0%1.6%4.8%1.0%3.8%
12 months to Aug 20210.1%0.1%4.5%1.2%3.7%
12 months to Aug 20220.0%0.1%4.3%0.8%3.2%
12 months to Aug 20230.0%0.1%4.3%0.2%3.2%
12 months to Aug 20240.2%0.1%4.3%0.6%3.8%
12 months to Aug 20250.2%0.3%8.0%3.9%6.4%
12 months to Aug 20260.1%0.2%14.0%11.4%9.3%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$317.2M−1.5%9.3%+2.9 pts$663.4M−9.2%
12 months to Aug 2025$322.0M+0.8%6.4%+2.7 pts$730.9M−0.9%
12 months to Aug 2024$319.4M+8.2%3.8%+0.6 pts$737.5M−1.0%
12 months to Aug 2023$295.3M−17%3.2%−0.1 pts$744.7M−1.8%
12 months to Aug 2022$356.6M+4.1%3.2%−0.4 pts$758.2M+11%
12 months to Aug 2021$342.5M+58%3.7%−0.2 pts$680.2M+24%
12 months to Aug 2020$216.7M−11%3.8%−0.8 pts$548.5M−11%
12 months to Aug 2019$244.6M−19%4.6%+1.3 pts$614.1M+7.2%
12 months to Aug 2018$301.0M+9.1%3.4%−0.1 pts$572.8M+2.5%
12 months to Aug 2017$275.9M3.4%$558.7M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Average prices aren't shown because this product's lines are counted in different units.

CountryUS importsShareAverage priceDuty paidLast 13 months
Canada$9.2M29.4%+8.3 ptsn/a0.0%0.0 pts
Mexico$7.3M23.4%+3.9 ptsn/a0.1%−0.1 pts
Germany$3.8M12.0%+0.6 ptsn/a9.9%−4.6 pts
Korea, South$2.4M7.7%+2.9 ptsn/a6.7%−6.1 pts
China$1.3M4.1%−3.3 ptsn/a41.9%−17.1 pts
India$1.0M3.3%−8.6 ptsn/a14.2%−3.5 pts
Thailand$947K3.0%−1.3 ptsn/a16.5%+2.3 pts
United Kingdom$830K2.7%+0.4 ptsn/a13.6%−0.7 pts
Other countries (33)$4.5M14.4%−2.3 ptsn/a10.6%−3.0 pts
All countries$31.2M100.0%n/a6.3%−5.7 pts

The 3 largest suppliers had 60.1% of US imports over the last 12 months.

How the market is shifting

Canada gained the most share: 26.0% of US imports over the last 12 months, up from 18.7% in the 12 months before. India lost the most: 6.6%, down from 14.7%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

  • Canada
  • Mexico
  • Germany
  • Korea, South
  • All countries
Share of US imports
Show the numbers
MonthCanadaMexicoGermanyKorea, South
September 202421.4%22.2%9.5%3.3%
October 202418.1%16.5%7.9%2.4%
November 202416.0%16.9%11.1%3.9%
December 202418.4%20.4%13.0%3.5%
January 202518.4%19.5%10.1%4.5%
February 202520.9%23.7%10.1%3.9%
March 202516.9%17.6%9.2%4.9%
April 202517.6%15.4%13.6%5.8%
May 202519.0%17.5%12.0%3.5%
June 202519.7%20.4%11.1%4.0%
July 202518.0%18.2%9.9%4.9%
August 202521.1%19.4%11.4%4.8%
September 202525.0%23.2%11.6%5.8%
October 202521.2%23.0%14.7%6.1%
November 202523.8%24.2%13.9%5.1%
December 202522.2%23.5%14.6%7.2%
January 202620.7%22.2%14.3%6.0%
February 202623.6%22.1%9.5%7.8%
March 202627.5%18.3%15.8%7.2%
April 202627.4%18.6%12.4%6.2%
May 202632.4%22.8%15.9%4.8%
June 202626.8%18.5%10.1%4.5%
July 202628.2%18.8%9.6%11.4%
August 202629.4%23.4%12.0%7.7%
Duty paid, % of value
Show the numbers
MonthCanadaMexicoGermanyKorea, SouthAll countries
September 20240.1%0.1%4.2%0.4%3.2%
October 20240.2%0.2%4.2%0.3%3.6%
November 20240.0%0.2%4.3%0.3%4.0%
December 20240.0%0.1%4.3%0.3%3.8%
January 20250.0%0.2%4.3%0.9%3.9%
February 20250.0%0.2%4.3%0.2%4.3%
March 20251.7%1.2%4.2%0.2%5.4%
April 20250.1%0.5%6.7%1.5%5.5%
May 20250.1%0.1%13.7%8.9%10.0%
June 20250.1%0.2%14.3%10.7%9.3%
July 20250.1%0.2%14.3%11.2%11.5%
August 20250.1%0.2%14.5%12.7%12.0%
September 20250.2%1.1%14.9%15.1%11.4%
October 20250.0%0.2%15.0%15.5%11.0%
November 20250.3%0.1%15.0%13.9%11.7%
December 20250.2%0.1%15.0%15.0%12.1%
January 20260.4%0.2%15.0%15.0%11.6%
February 20260.8%0.1%13.6%14.1%12.2%
March 20260.1%0.2%14.0%6.7%8.8%
April 20260.0%0.3%14.2%10.5%7.1%
May 20260.0%0.1%14.3%10.3%6.9%
June 20260.0%0.2%14.2%10.4%7.8%
July 20260.0%0.1%13.6%10.2%7.6%
August 20260.0%0.1%9.9%6.7%6.3%

Tariff actions touching this product

When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.

  1. January–March 2026 · Duty paid: India 54.2% → 14.2%, China 54.5% → 40.7%.
  2. September 2025 · Duty paid: India 14.2% → 53.8%.
  3. April–June 2025 · Duty paid: Germany 4.3% → 14.3%, India 4.2% → 12.3%, China 30.1% → 59.3%, Japan 4.8% → 14.5%, all countries 5.5% → 11.5%.
  4. November 2019 · Duty paid: China 24.5% → 15.8%.
  5. September 2018 · Duty paid: China 5.3% → 22.2%.

Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. Search the Federal Register for 3921.13

Where it enters the US

Main ports of entry over the 12 months to August 2026: US imports and share.

  1. Buffalo-Niagara Falls, NY$38.0M · 12.0%
  2. Laredo, TX$31.2M · 9.8%
  3. Norfolk-Newport News, VA$31.0M · 9.8%
  4. Los Angeles, CA$25.2M · 8.0%
  5. Houston, TX$20.7M · 6.5%

Where US exports go

US exports were $59.9M in August 2026, down 6.6% from August 2025, and $663.4M over the last 12 months, down 9.2% on the 12 months before. Fastest-growing market with 3% or more of US exports: Dominican Republic, up 33%.

MarketLast 12 monthsSharevs 12 months before
Mexico$274.0M41.3%−2.6%
Canada$124.2M18.7%+7.2%
Dominican Republic$35.6M5.4%+33%
Hong Kong$20.1M3.0%−46%
United Kingdom$17.4M2.6%−0.1%
Netherlands$14.9M2.2%−34%
Finland$14.8M2.2%−1.6%
China$12.4M1.9%−6.0%
Other countries (109)$150.0M22.6%−25%
All countries$663.4M100.0%−9.2%

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 122 have reported 2025 so far. Where a country's figure for imports from the US is under half or over double what the US recorded exporting there that year, the US figure is shown under it.

MarketImportsvs year beforeFrom the USUS share
Mexico$470.4Min 2025−8.5%$270.2M57.4%
Germany$262.7Min 2025+6.6%$21.2MUS records $9.8M8.1%
Netherlands$238.7Min 2025−3.4%$14.7M6.1%
China$190.8Min 2025−14%$19.9MUS records $9.9M10.4%
Poland$177.4Min 2025+6.5%$3.2M1.8%
France$175.8Min 2025−1.8%$6.0M3.4%
United Kingdom$155.5Min 2025+7.3%$12.7M8.2%
Czech Republic$139.1Min 2025+7.0%$932K0.7%

The biggest market outside the US is Mexico, which imported $470.4M of this product in 2025, 57.4% of that from the US.

The US supplies 57.4% of imports into Mexico, but under 10% into the Netherlands, Poland and France.

Other products under heading 3921: plates, sheets, film, foil and strip not elsewhere specified, of plastics. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Plates, sheets, film, foil and strip of plastics, not elsewhere specified, non-cellular plastics not elsewhere specifiedHS 3921.90$1.46B$1.70B
Plates, sheets, film, foil and strip of plastics not elsewhere specified, cellular plastics not elsewhere specifiedHS 3921.19$1.14B$955.7M
Plates, sheets, film, foil and strip of plastics not elsewhere specified, cellular polymers of vinyl chlorideHS 3921.12$252.4M$284.4M
Plates, sheets, film, foil and strip of plastics not elsewhere specified, cellular polymers of styreneHS 3921.11$155.3M$121.5M
Plates, sheets, film, foil and strip of plastics not elsewhere specified, cellular regenerated celluloseHS 3921.14$22.4M$23.8M
About these figures
  • Source: US Census Bureau international trade data, not seasonally adjusted, in US dollars. Retrieved November 3, 2026.
  • US imports are general imports at customs value, which excludes freight and insurance. Exports are at free-alongside-ship value.
  • Average price is customs value divided by quantity, across all of the product's 10-digit lines.
  • Duty paid is the duty Census calculates on each country's imports for consumption, as a share of their value. It moves with tariff changes, exemptions and the mix of goods within the product.
  • Markets abroad are each country's imports as it reports them to UN Comtrade, in US dollars, usually including freight and insurance. Countries report a year or more late and in their own edition of the HS codes, so one still on an older edition is missing for codes that changed in 2022.
  • Tariff notices are from the Federal Register, matched to this product by the HTS numbers in their text.
  • Census revises recent months, so figures can change slightly. These are estimates for research and planning, not customs or legal advice.

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