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

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HS 5501.40

Synthetic filament tow, of polypropylene

In short

  • The US imported $1.4M of this product over the 12 months to August 2026, down 11% on the year before.
  • China is the largest supplier, with 69.6% of US imports; Italy is next, with 20.4%.
  • China is the cheapest main supplier before and after freight and duty, landing at $7.69/kg.
  • Duty paid averaged 34.5% of the value of imports in August 2026, down 28.0 points on a year earlier.
  • US exports were $1.3M over the last 12 months; the largest market is Japan, with 44.8%.

US imports, Aug 2026

$54K

↑ +55% vs Aug 2025

Last 12 months

$1.4M

↓ −11% vs the 12 months before

Average duty paid

34.5%

↓ −28.0 pts vs Aug 2025

Top supplier

China

69.6% 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$35K
September 2025$12K
October 2025$1K
November 2025$5K
December 2025$86K
January 2026$15K
February 2026$429K
March 2026$124K
April 2026$129K
May 2026$418K
June 2026$96K
July 2026$36K
August 2026$54K

What changed

  • US imports were $54K in August 2026, up 50% from July 2026 and up 55% from August 2025.
  • Over the 12 months to August 2026 they totalled $1.4M, down 11% on the 12 months before.
  • Biggest moves in market share since July 2026: China up from 21.1% to 69.6%, Belgium down from 39.9% to 7.8%.
  • Average price from China rose 77% since July 2026, to $4.30/kg.
  • Duty paid on imports from Belgium fell from 15.8% to 10.0% of their value since July 2026.
  • Duty paid on imports from Italy fell from 13.1% to 10.0% of their value since July 2026.

US trade by year

US imports were $1.4M in the 12 months to Aug 2026, down 16% on the 12 months to Aug 2017. US exports were $1.3M, down 81%.

2017201820192020202120222023202420252026
Show the numbers
PeriodUS imports
12 months to Aug 2017$1.7M
12 months to Aug 2018$1.8M
12 months to Aug 2019$631K
12 months to Aug 2020$242K
12 months to Aug 2021$106K
12 months to Aug 2022$969K
12 months to Aug 2023$1.8M
12 months to Aug 2024$1.4M
12 months to Aug 2025$1.6M
12 months to Aug 2026$1.4M
  • China
  • Belgium
  • Italy
  • United Kingdom
  • All countries
Share of US imports
Show the numbers
PeriodChinaBelgiumItalyUnited Kingdom
12 months to Aug 201798.7%0.0%0.0%0.0%
12 months to Aug 201899.7%0.0%0.0%0.0%
12 months to Aug 201990.2%0.0%0.0%0.0%
12 months to Aug 202099.7%0.0%0.0%0.0%
12 months to Aug 202177.0%0.0%0.0%0.0%
12 months to Aug 202299.5%0.0%0.0%0.0%
12 months to Aug 2023100.0%0.0%0.0%0.0%
12 months to Aug 2024100.0%0.0%0.0%0.0%
12 months to Aug 202599.9%0.0%0.0%0.0%
12 months to Aug 202694.8%2.0%1.7%0.9%
Duty paid, % of value
Show the numbers
PeriodChinaBelgiumItalyUnited KingdomAll countries
12 months to Aug 20177.5%n/an/an/a7.5%
12 months to Aug 20187.5%n/an/an/a7.5%
12 months to Aug 201910.4%n/an/an/a10.1%
12 months to Aug 20208.3%n/an/an/a8.3%
12 months to Aug 202119.3%n/an/an/a16.6%
12 months to Aug 202217.8%n/an/an/a17.7%
12 months to Aug 202323.3%n/an/an/a23.3%
12 months to Aug 202429.7%n/an/an/a29.7%
12 months to Aug 202546.3%n/an/an/a46.3%
12 months to Aug 202642.5%14.7%11.9%17.5%41.1%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$1.4M−11%41.1%−5.2 pts$1.3M−23%
12 months to Aug 2025$1.6M+12%46.3%+16.5 pts$1.7M+46%
12 months to Aug 2024$1.4M−21%29.7%+6.4 pts$1.2M−39%
12 months to Aug 2023$1.8M+85%23.3%+5.6 pts$2.0M−43%
12 months to Aug 2022$969K+811%17.7%+1.1 pts$3.4M+5.1%
12 months to Aug 2021$106K−56%16.6%+8.3 pts$3.3M−55%
12 months to Aug 2020$242K−62%8.3%−1.8 pts$7.2M−27%
12 months to Aug 2019$631K−64%10.1%+2.6 pts$9.9M+1.1%
12 months to Aug 2018$1.8M+4.7%7.5%0.0 pts$9.8M+41%
12 months to Aug 2017$1.7M7.5%$6.9M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.

CountryUS importsShareAverage priceDuty paidLast 13 months
China$37K69.6%−30.4 pts$4.30/kg+330%45.0%−17.5 pts
Italy$11K20.4%new$253.95/kg10.0%
Belgium$4K7.8%new$190.45/kg10.0%
United Kingdom$8281.5%new$828.00/kg17.5%
Latvia$3600.7%new$360.00/kg17.5%
All countries$54K100.0%$6.13/kg+513%34.5%−28.0 pts

The 3 largest suppliers had 98.5% of US imports over the last 12 months.

Landed cost by origin

What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.

  • Price
  • Freight and insurance
  • Duty
CountryPriceFreight and insuranceDutyLanded costMake-up
China$5.16/kg$0.31/kg5.9% of price$2.23/kg43.2% of price$7.69/kg+226%
Belgium$191.77/kg$7.77/kg4.1% of price$27.81/kg14.5% of price$227.35/kg
Italy$239.72/kg$8.15/kg3.4% of price$27.82/kg11.6% of price$275.69/kg
All countries$6.76/kg$0.36/kg5.3% of price$2.43/kg35.9% of price$9.55/kg+305%

Landed at a US port, China was cheapest, at $7.69/kg: 96.6% below Belgium.

Landed cost from China rose 226% on a year earlier, to $7.69/kg, mostly on price: $1.36/kg then, $5.16/kg now.

How the market is shifting

China lost the most share: 94.8% of US imports over the last 12 months, down from 99.9% in the 12 months before. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • China
  • Belgium
  • Italy
  • United Kingdom
  • All countries
Share of US imports
Show the numbers
MonthChinaBelgiumItalyUnited Kingdom
September 2024100.0%0.0%0.0%0.0%
October 2024100.0%0.0%0.0%0.0%
November 2024100.0%0.0%0.0%0.0%
December 2024100.0%0.0%0.0%0.0%
January 2025100.0%0.0%0.0%0.0%
February 2025100.0%0.0%0.0%0.0%
March 2025100.0%0.0%0.0%0.0%
April 2025100.0%0.0%0.0%0.0%
May 202596.6%0.0%0.0%0.0%
June 202599.0%0.0%0.0%0.0%
July 2025100.0%0.0%0.0%0.0%
August 2025100.0%0.0%0.0%0.0%
September 2025100.0%0.0%0.0%0.0%
October 2025100.0%0.0%0.0%0.0%
November 202568.6%0.0%0.0%0.0%
December 202597.8%0.9%0.5%0.0%
January 20262.3%52.5%9.3%34.3%
February 2026100.0%0.0%0.0%0.0%
March 202699.1%0.4%0.0%0.0%
April 202699.6%0.0%0.0%0.0%
May 202698.2%0.0%0.0%1.6%
June 202699.6%0.0%0.0%0.4%
July 202621.1%39.9%32.6%0.0%
August 202669.6%7.8%20.4%1.5%
Duty paid, % of value
Show the numbers
MonthChinaBelgiumItalyUnited KingdomAll countries
September 202432.5%n/an/an/a32.5%
October 202432.5%n/an/an/a32.5%
November 202432.5%n/an/an/a32.5%
December 202432.5%n/an/an/a32.5%
January 202532.5%n/an/an/a32.5%
February 202532.5%n/an/an/a32.5%
March 202542.5%n/an/an/a42.5%
April 202555.8%n/an/an/a55.8%
May 202562.5%n/an/an/a60.4%
June 202562.5%n/an/an/a62.0%
July 202562.5%n/an/an/a62.5%
August 202562.5%n/an/an/a62.5%
September 202562.5%n/an/an/a62.5%
October 202562.5%n/an/an/a62.5%
November 202562.5%n/an/an/a48.1%
December 202552.5%15.1%14.9%n/a51.7%
January 202652.6%15.0%15.0%17.5%16.7%
February 202639.7%n/an/an/a39.7%
March 202642.5%15.1%n/an/a42.2%
April 202642.5%n/an/an/a42.4%
May 202642.5%n/an/a17.5%42.0%
June 202642.5%n/an/a17.5%42.4%
July 202642.5%15.8%13.1%n/a20.7%
August 202645.0%10.0%10.0%17.5%34.5%

Where it enters the US

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

  1. New York, NY$655K · 46.6%
  2. Newark, NJ$369K · 26.3%
  3. Tacoma, WA$248K · 17.7%
  4. New Orleans, LA$61K · 4.4%
  5. Seattle, WA$54K · 3.8%

Where US exports go

US exports were $52K in August 2026, up 180% from August 2025, and $1.3M over the last 12 months, down 23% on the 12 months before. Fastest-growing market with 3% or more of US exports: Canada, up 20%.

MarketLast 12 monthsSharevs 12 months before
Japan$604K44.8%−17%
China$539K39.9%−24%
Canada$105K7.8%+20%
United Kingdom$36K2.7%+569%
Malaysia$20K1.5%+118%
Qatar$18K1.4%+6.4%
Nicaragua$18K1.3%+14%
New Zealand$9K0.7%new
All countries$1.3M100.0%−23%

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; 59 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Kenya$2.5Min 2025−69%$00.0%
Nigeria$1.9Min 2025+2821%$40K2.1%
France$776Kin 2025−41%$1150.0%
Tanzania$684Kin 2025+30%$00.0%
China$477Kin 2025−49%$00.0%
Brazil$467Kin 2025+2.6%$00.0%
South Africa$362Kin 2025+39%$130.0%
Turkey$333Kin 2025−55%$00.0%

The biggest market outside the US is Kenya, which imported $2.5M of this product in 2025, none of it from the US.

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, not elsewhere specifiedHS 5501.90$12.1M$10.1M
Synthetic filament tow of polyestersHS 5501.20$341K$3.7M
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.
  • Landed cost adds Census's import charges (freight, insurance and other costs of bringing the goods to the first US port) and calculated duty to the customs value, per unit, across the product's 10-digit lines. It leaves out antidumping and countervailing duties, customs fees and transport inland. Prices are averages across the goods within the code, so a lower one can mean cheaper goods, not the same goods for less.
  • 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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