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

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HS 5501.90

Synthetic filament tow, not elsewhere specified

In short

  • The US imported $12.1M of this product over the 12 months to August 2026, down 20% on the year before.
  • Hungary is the largest supplier, with 97.4% of US imports; Netherlands is next, with 2.6%.
  • Duty paid averaged 10.0% of the value of imports in August 2026, down 6.9 points on a year earlier.
  • US exports were $10.1M over the last 12 months; the largest market is Spain, with 90.0%.

US imports, Aug 2026

$1.2M

↑ +17% vs Aug 2025

Last 12 months

$12.1M

↓ −20% vs the 12 months before

Average duty paid

10.0%

↓ −6.9 pts vs Aug 2025

Top supplier

Hungary

97.4% 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.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAug
Show the numbers
MonthUS imports
August 2025$1.0M
September 2025$488K
October 2025$663K
November 2025$828K
December 2025$832K
January 2026$822K
February 2026$354K
March 2026$1.5M
April 2026$666K
May 2026$1.5M
June 2026$1.5M
July 2026$1.8M
August 2026$1.2M

What changed

  • US imports were $1.2M in August 2026, down 35% from July 2026 and up 17% from August 2025.
  • Over the 12 months to August 2026 they totalled $12.1M, down 20% on the 12 months before.
  • Biggest moves in market share since July 2026: Hungary down from 99.9% to 97.4%.
  • Average price from Hungary stayed within 5% of July 2026, at $9.96/kg.
  • Duty paid on imports from Hungary fell from 16.1% to 10.0% of their value since July 2026.

US trade by year

US imports were $12.1M in the 12 months to Aug 2026, up 26% on the 12 months to Aug 2017. US exports were $10.1M, down 55%. 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.

2017201820192020202120222023202420252026Duty ↑Duty ↓Duty ↓Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$9.6M
12 months to Aug 2018$10.6M
12 months to Aug 2019$12.6M
12 months to Aug 2020$8.5M
12 months to Aug 2021$3.8M
12 months to Aug 2022$9.7M
12 months to Aug 2023$8.9M
12 months to Aug 2024$10.4M
12 months to Aug 2025$15.2M
12 months to Aug 2026$12.1M
  • Hungary
  • Netherlands
  • Mexico
  • Italy
  • All countries
Share of US imports
Show the numbers
PeriodHungaryNetherlandsMexicoItaly
12 months to Aug 201796.8%0.0%0.0%0.0%
12 months to Aug 201887.8%0.0%0.0%11.9%
12 months to Aug 201982.2%0.0%0.0%6.0%
12 months to Aug 202082.0%0.0%0.0%0.0%
12 months to Aug 202151.0%0.1%0.0%0.0%
12 months to Aug 202274.3%0.0%0.0%0.0%
12 months to Aug 202394.1%0.0%0.6%0.2%
12 months to Aug 202499.3%0.0%0.3%0.0%
12 months to Aug 202598.6%0.0%0.7%0.0%
12 months to Aug 202699.4%0.3%0.2%0.1%
Duty paid, % of value
Show the numbers
PeriodHungaryNetherlandsMexicoItalyAll countries
12 months to Aug 20177.5%n/an/an/a7.5%
12 months to Aug 20187.5%n/an/a7.5%7.5%
12 months to Aug 20197.5%n/an/a7.5%8.6%
12 months to Aug 20207.5%n/an/an/a12.0%
12 months to Aug 20217.5%7.5%n/a7.5%19.5%
12 months to Aug 20227.5%n/an/an/a13.9%
12 months to Aug 20237.5%n/a7.5%7.5%7.5%
12 months to Aug 20247.5%n/a7.5%7.5%7.5%
12 months to Aug 202511.0%n/a20.8%n/a11.0%
12 months to Aug 202615.8%10.0%29.9%17.3%15.8%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$12.1M−20%15.8%+4.7 pts$10.1M−2.2%
12 months to Aug 2025$15.2M+46%11.0%+3.5 pts$10.3M+71%
12 months to Aug 2024$10.4M+17%7.5%0.0 pts$6.0M−38%
12 months to Aug 2023$8.9M−8.7%7.5%−6.4 pts$9.7M+1.0%
12 months to Aug 2022$9.7M+156%13.9%−5.7 pts$9.6M+39%
12 months to Aug 2021$3.8M−55%19.5%+7.5 pts$6.9M−47%
12 months to Aug 2020$8.5M−33%12.0%+3.4 pts$13.1M−33%
12 months to Aug 2019$12.6M+19%8.6%+1.1 pts$19.6M−2.1%
12 months to Aug 2018$10.6M+10%7.5%0.0 pts$20.0M−11%
12 months to Aug 2017$9.6M7.5%$22.4M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025.

CountryUS importsShareAverage priceDuty paidLast 13 months
Hungary$1.2M97.4%−0.8 pts$9.96/kg0.0%10.0%−6.7 pts
Netherlands$31K2.6%new$8.47/kg10.0%
All countries$1.2M100.0%$9.91/kg+2.5%10.0%−6.9 pts

The 3 largest suppliers had 99.9% of US imports over the last 12 months.

How the market is shifting

No supplier with 3% or more of the market gained or lost a point of share over the last 12 months. 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.

  • Hungary
  • Netherlands
  • Mexico
  • Italy
  • All countries
Share of US imports
Show the numbers
MonthHungaryNetherlandsMexicoItaly
September 202497.7%0.0%0.9%0.0%
October 2024100.0%0.0%0.0%0.0%
November 202498.0%0.0%1.0%0.0%
December 202499.6%0.0%0.4%0.0%
January 202594.0%0.0%1.8%0.0%
February 202599.9%0.0%0.0%0.0%
March 202597.0%0.0%3.0%0.0%
April 202596.6%0.0%0.7%0.0%
May 2025100.0%0.0%0.0%0.0%
June 202599.9%0.0%0.0%0.0%
July 2025100.0%0.0%0.0%0.0%
August 202598.2%0.0%1.8%0.0%
September 202599.5%0.0%0.5%0.0%
October 2025100.0%0.0%0.0%0.0%
November 2025100.0%0.0%0.0%0.0%
December 202599.9%0.0%0.0%0.1%
January 2026100.0%0.0%0.0%0.0%
February 202694.0%0.0%6.0%0.0%
March 2026100.0%0.0%0.0%0.0%
April 202699.0%0.0%0.7%0.2%
May 202699.6%0.0%0.0%0.1%
June 202699.9%0.0%0.0%0.1%
July 202699.9%0.0%0.0%0.0%
August 202697.4%2.6%0.0%0.0%
Duty paid, % of value
Show the numbers
MonthHungaryNetherlandsMexicoItalyAll countries
September 20247.5%n/a7.5%n/a7.5%
October 20247.5%n/an/an/a7.5%
November 20247.5%n/a7.5%n/a7.5%
December 20247.5%n/a7.5%n/a7.5%
January 20257.5%n/a7.5%n/a7.5%
February 20257.5%n/an/an/a7.5%
March 20257.5%n/a32.5%n/a8.3%
April 20257.5%n/a32.5%n/a7.7%
May 202516.8%n/an/an/a16.8%
June 202517.5%n/an/an/a17.5%
July 202517.5%n/an/an/a17.5%
August 202516.7%n/a27.8%n/a16.9%
September 202515.0%n/a32.5%n/a15.1%
October 202515.0%n/an/an/a15.0%
November 202515.0%n/an/an/a15.0%
December 202515.0%n/an/a15.0%15.0%
January 202615.0%n/an/an/a15.0%
February 202615.0%n/a32.5%n/a16.1%
March 202617.5%n/an/an/a17.5%
April 202617.5%n/a17.5%17.3%17.5%
May 202617.5%n/an/a17.5%17.5%
June 202617.5%n/a17.5%17.5%17.5%
July 202616.1%n/an/a17.9%16.1%
August 202610.0%10.0%n/an/a10.0%

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. April–May 2025 · Duty paid: Hungary 7.5% → 17.1%, all countries 7.6% → 17.2%.
  2. May 2022 · Duty paid: all countries 18.6% → 7.6%.
  3. December 2021 · Duty paid: all countries 10.2% → 18.6%.
  4. June 2021 · Duty paid: all countries 30.8% → 12.9%.
  5. February 2020 · Duty paid: all countries 7.6% → 15.0%.

Where it enters the US

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

  1. Savannah, GA$8.3M · 68.1%
  2. Seattle, WA$3.3M · 27.3%
  3. Norfolk-Newport News, VA$486K · 4.0%
  4. Chicago, IL$31K · 0.3%
  5. Laredo, TX$26K · 0.2%

Where US exports go

US exports were $849K in August 2026, down 42% from August 2025, and $10.1M over the last 12 months, down 2.2% on the 12 months before. Fastest-growing market with 3% or more of US exports: Switzerland, up 186%.

MarketLast 12 monthsSharevs 12 months before
Spain$9.1M90.0%−8.9%
Switzerland$507K5.0%+186%
Canada$168K1.7%new
China$160K1.6%+33%
Italy$71K0.7%new
Singapore$34K0.3%new
Mexico$32K0.3%new
Indonesia$23K0.2%new
Other countries (2)$15K0.1%−57%
All countries$10.1M100.0%−2.2%

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; 93 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Kenya$24.2Min 2025−5.7%$00.0%
Germany$19.8Min 2025−24%$19.4M98.1%
Tanzania$17.2Min 2025+1.4%$00.0%
Israel$5.6Min 2025−44%$00.0%
Thailand$4.8Min 2025+3.8%$60K1.3%
Belgium$2.3Min 2025+67%$170.0%
Nigeria$2.0Min 2025−59%$00.0%
Burma$1.2Min 2025−20%$00.0%

The biggest market outside the US is Kenya, which imported $24.2M of this product in 2025, none of it from the US.

The US supplies 98.1% of imports into Germany, but under 10% into Kenya, Tanzania and Israel.

Of these, imports into Belgium grew fastest: up 67% from 2024 to 2025.

Other products under heading 5501: synthetic filament tow. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Synthetic filament tow of aramidsHS 5501.11$114K$33.4M
Synthetic filament tow, acrylic or modacrylicHS 5501.30$15.5M$7.1M
Synthetic filament tow of polyestersHS 5501.20$341K$3.7M
Synthetic filament tow, of polypropyleneHS 5501.40$1.4M$1.3M
Synthetic filament tow of nylon or other polyamides, not elsewhere specifiedHS 5501.19$216K$2.1M
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 (kilograms), 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.
  • 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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