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

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HS 5402.31

Synthetic filament yarn other than sewing thread, not put up for retail sale, textured yarn of nylon or other polyamides, not over 500 decitex

In short

  • The US imported $8.6M of this product over the 12 months to August 2026, down 28% on the year before.
  • Thailand is the largest supplier, with 40.0% of US imports; Taiwan is next, with 23.3%.
  • China has the lowest price, but landed at a US port with freight and duty Taiwan is cheaper: $4.54/kg against $5.44/kg.
  • Duty paid averaged 14.9% of the value of imports in August 2026, down 4.9 points on a year earlier.
  • Thailand is gaining share: 41.3% over the last 12 months, up from 37.0%.
  • US exports were $6.5M over the last 12 months; the largest market is Mexico, with 29.3%.

US imports, Aug 2026

$753K

↓ −20% vs Aug 2025

Last 12 months

$8.6M

↓ −28% vs the 12 months before

Average duty paid

14.9%

↓ −4.9 pts vs Aug 2025

Top supplier

Thailand

40.0% 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.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAugDuty ↓
Show the numbers
MonthUS imports
August 2025$938K
September 2025$933K
October 2025$537K
November 2025$695K
December 2025$489K
January 2026$885K
February 2026$45K
March 2026$838K
April 2026$1.3M
May 2026$480K
June 2026$865K
July 2026$764K
August 2026$753K

What changed

  • US imports were $753K in August 2026, down 1.5% from July 2026 and down 20% from August 2025.
  • Over the 12 months to August 2026 they totalled $8.6M, down 28% on the 12 months before.
  • Biggest moves in market share since July 2026: Taiwan up from 0.7% to 23.3%, France down from 15.9% to 0.0%.
  • Average price from Italy fell 35% since July 2026, to $9.63/kg.
  • Duty paid on imports from China rose from 33.8% to 46.3% of their value since July 2026.
  • Duty paid on imports from Germany fell from 18.3% to 10.0% of their value since July 2026.

US trade by year

US imports were $8.6M in the 12 months to Aug 2026, down 59% on the 12 months to Aug 2017. US exports were $6.5M, down 72%. 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 ↑Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$20.7M
12 months to Aug 2018$22.2M
12 months to Aug 2019$20.2M
12 months to Aug 2020$14.9M
12 months to Aug 2021$13.8M
12 months to Aug 2022$22.7M
12 months to Aug 2023$15.3M
12 months to Aug 2024$12.4M
12 months to Aug 2025$12.0M
12 months to Aug 2026$8.6M
  • Thailand
  • Italy
  • Mexico
  • India
  • All countries
Share of US imports
Show the numbers
PeriodThailandItalyMexicoIndia
12 months to Aug 20179.5%17.8%9.6%7.9%
12 months to Aug 20188.9%12.5%6.4%7.7%
12 months to Aug 201912.1%11.0%5.4%8.2%
12 months to Aug 202013.7%11.1%9.7%9.1%
12 months to Aug 202118.9%6.5%10.3%10.6%
12 months to Aug 202220.1%4.4%17.5%10.5%
12 months to Aug 202324.3%5.8%18.2%8.8%
12 months to Aug 202428.0%3.4%16.8%4.7%
12 months to Aug 202537.0%9.4%12.1%7.7%
12 months to Aug 202641.3%10.6%8.9%8.1%
Duty paid, % of value
Show the numbers
PeriodThailandItalyMexicoIndiaAll countries
12 months to Aug 20178.0%8.6%0.4%8.2%7.3%
12 months to Aug 20188.0%8.6%0.0%8.2%7.7%
12 months to Aug 20198.0%8.6%0.0%8.2%9.3%
12 months to Aug 20208.0%8.4%0.0%8.2%8.8%
12 months to Aug 20218.0%8.3%0.0%8.3%8.2%
12 months to Aug 20228.0%8.5%0.2%8.4%7.9%
12 months to Aug 20238.0%8.0%0.0%8.4%7.2%
12 months to Aug 20248.0%8.1%0.0%8.1%7.5%
12 months to Aug 202512.5%12.2%1.5%9.9%11.0%
12 months to Aug 202621.8%16.1%0.4%33.8%20.4%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$8.6M−28%20.4%+9.5 pts$6.5M−42%
12 months to Aug 2025$12.0M−3.5%11.0%+3.5 pts$11.2M−16%
12 months to Aug 2024$12.4M−19%7.5%+0.2 pts$13.3M−16%
12 months to Aug 2023$15.3M−33%7.2%−0.7 pts$16.0M−17%
12 months to Aug 2022$22.7M+64%7.9%−0.3 pts$19.2M+37%
12 months to Aug 2021$13.8M−6.9%8.2%−0.7 pts$14.0M−14%
12 months to Aug 2020$14.9M−26%8.8%−0.5 pts$16.4M−18%
12 months to Aug 2019$20.2M−8.9%9.3%+1.7 pts$20.1M−21%
12 months to Aug 2018$22.2M+7.4%7.7%+0.4 pts$25.4M+8.6%
12 months to Aug 2017$20.7M7.3%$23.4M

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
Thailand$301K40.0%−26.7 pts$9.49/kg−7.8%20.8%+2.6 pts
Taiwan$175K23.3%new$3.88/kg10.0%
Italy$83K11.1%+3.2 pts$9.63/kg+0.2%10.0%−8.0 pts
Mexico$76K10.1%+4.8 pts$6.31/kg−15%0.0%0.0 pts
India$53K7.0%+1.1 pts$6.70/kg−3.5%18.0%0.0 pts
Germany$31K4.2%+2.9 pts$27.74/kg+85%10.0%−5.0 pts
China$18K2.4%−3.2 pts$2.92/kg−9.1%46.3%−17.5 pts
Pakistan$12K1.6%new$7.71/kg18.6%
Other countries (2)$3K0.3%new$16.73/kg14.0%
All countries$753K100.0%$6.58/kg−16%14.9%−4.9 pts

The 3 largest suppliers had 60.8% 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
Taiwan$3.91/kg$0.22/kg5.7% of price$0.40/kg10.3% of price$4.54/kg+2.8%
China$3.77/kg$0.17/kg4.6% of price$1.50/kg39.7% of price$5.44/kg−4.1%
Mexico$7.16/kg$0.19/kg2.7% of price$0.00/kg0.0% of price$7.36/kg+2.1%
India$6.89/kg$0.00/kg0.0% of price$1.24/kg18.0% of price$8.13/kg−1.0%
Italy$9.87/kg$0.07/kg0.7% of price$1.48/kg14.9% of price$11.42/kg−0.7%
Thailand$10.12/kg$0.46/kg4.6% of price$1.95/kg19.2% of price$12.53/kg−1.8%
Slovenia$13.15/kg$1.46/kg11.1% of price$2.37/kg18.0% of price$16.98/kg−12%
France$20.54/kg$0.16/kg0.8% of price$3.11/kg15.1% of price$23.81/kg+172%
All countries$6.88/kg$0.37/kg5.3% of price$1.14/kg16.5% of price$8.39/kg−14%

Landed at a US port, Taiwan was cheapest, at $4.54/kg: 16.6% below China.

China had the lowest price before freight and duty, $3.77/kg, but they added 44.3% to it.

Landed cost from France rose 172% on a year earlier, to $23.81/kg, mostly on price: $6.13/kg then, $20.54/kg now.

How the market is shifting

Thailand gained the most share: 41.3% of US imports over the last 12 months, up from 37.0% in the 12 months before. Peru lost the most: 1.6%, down from 6.3%. 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.

  • Thailand
  • Italy
  • Mexico
  • India
  • All countries
Share of US imports
Show the numbers
MonthThailandItalyMexicoIndia
September 20241.6%0.2%15.0%18.3%
October 202435.6%3.1%3.1%3.9%
November 202429.7%0.1%13.1%5.6%
December 202419.6%5.6%12.3%7.2%
January 202545.2%3.4%11.7%6.3%
February 20250.5%0.0%35.8%12.7%
March 202539.5%25.9%12.7%3.6%
April 202529.6%18.5%18.5%9.6%
May 202538.1%9.9%11.2%14.4%
June 202563.9%9.8%12.6%0.0%
July 202537.2%13.7%5.9%15.2%
August 202566.7%7.9%5.3%5.9%
September 202536.9%8.8%17.8%5.9%
October 202525.3%17.3%7.5%0.0%
November 202548.5%1.0%2.5%12.2%
December 202531.8%19.8%15.6%9.5%
January 202663.6%9.1%6.7%9.9%
February 20266.3%4.8%46.6%0.0%
March 202622.9%27.2%2.6%5.2%
April 202678.0%7.0%3.9%3.3%
May 20260.3%2.4%10.8%32.4%
June 202637.1%14.2%8.4%3.2%
July 202624.6%1.3%14.5%13.3%
August 202640.0%11.1%10.1%7.0%
Duty paid, % of value
Show the numbers
MonthThailandItalyMexicoIndiaAll countries
September 20248.0%8.8%0.0%8.2%6.4%
October 20248.0%8.0%0.0%8.0%9.5%
November 20248.2%8.8%0.1%8.0%6.8%
December 20248.1%8.1%0.0%8.0%7.2%
January 20258.1%8.0%0.0%8.0%8.0%
February 20258.1%n/a0.0%8.0%8.6%
March 20258.2%8.0%10.9%8.0%8.1%
April 20258.2%10.8%0.0%8.0%8.7%
May 202513.7%18.0%0.5%9.7%14.7%
June 202518.1%18.0%0.0%n/a15.9%
July 202518.4%18.0%0.0%18.0%17.3%
August 202518.2%18.0%0.0%18.0%19.7%
September 202527.3%15.0%0.0%58.0%22.6%
October 202527.0%15.0%0.0%n/a20.4%
November 202527.2%15.0%0.0%58.0%28.7%
December 202527.1%15.0%0.0%58.0%24.7%
January 202627.1%15.0%0.0%58.0%26.0%
February 202627.2%15.0%0.0%n/a9.7%
March 20268.6%18.0%0.0%18.0%19.0%
April 202618.2%17.9%6.1%18.0%18.1%
May 202618.0%18.0%0.0%18.3%18.5%
June 202618.3%18.0%0.0%18.0%18.4%
July 202618.5%18.1%0.0%18.0%16.0%
August 202620.8%10.0%0.0%18.0%14.9%

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: Thailand 27.2% → 18.2%, all countries 26.1% → 18.6%.
  2. June–July 2025 · Duty paid: Thailand 11.0% → 22.7%, all countries 8.6% → 18.5%.
  3. October 2018 · Duty paid: China 8.7% → 18.7%.

Where it enters the US

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

  1. Los Angeles, CA$3.6M · 41.9%
  2. Norfolk-Newport News, VA$2.5M · 28.9%
  3. Laredo, TX$760K · 8.9%
  4. Savannah, GA$672K · 7.9%
  5. Charleston, SC$597K · 7.0%

Where US exports go

US exports were $440K in August 2026, down 47% from August 2025, and $6.5M over the last 12 months, down 42% on the 12 months before. Fastest-growing market with 3% or more of US exports: Dominican Republic, up 204%.

MarketLast 12 monthsSharevs 12 months before
Mexico$1.9M29.3%−46%
Ireland$1.0M15.4%+138%
Honduras$892K13.8%−65%
Canada$837K12.9%−9.0%
El Salvador$669K10.3%+7.2%
Colombia$329K5.1%−55%
Dominican Republic$269K4.1%+204%
Costa Rica$118K1.8%−93%
Other countries (17)$473K7.3%−8.3%
All countries$6.5M100.0%−42%

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; 103 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Brazil$194.5Min 2025+12%$19K0.0%
Italy$86.6Min 2025+21%$00.0%
Turkey$62.8Min 2025−37%$00.0%
China$36.9Min 2025+3.3%$345K0.9%
Sri Lanka$34.8Min 2025−13%$4K0.0%
Germany$31.3Min 2025+12%$215K0.7%
Colombia$26.3Min 2025+27%$809K3.1%
Korea, South$25.9Min 2025+8.2%$24K0.1%

The biggest market outside the US is Brazil, which imported $194.5M of this product in 2025, under 0.1% of it from the US.

Of these, imports into Colombia grew fastest: up 27% from 2024 to 2025.

Other products under heading 5402: synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilaments of less than 67 decitex. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Synthetic filament yarn, not put up for retail sale, high tenacity yarn of nylon or other polyamides of aramidsHS 5402.11$96.1M$139.3M
Synthetic filament yarn other than sewing thread, not put up for retail sale, high tenacity yarn of polyestersHS 5402.20$169.3M$37.2M
Synthetic filament yarn other than sewing thread, not put up for retail sale, textured yarn of polyestersHS 5402.33$104.4M$57.0M
Synthetic filament yarn, not put up for retail sale, high tenacity yarn of nylon or other polyamides, nesHS 5402.19$84.6M$55.4M
Synthetic filament yarn except sewing thread, not for retail sale, single yarn not elsewhere specified, not over 50 turns per meter if twisted, of yarns not elsewhere specifiedHS 5402.49$22.0M$61.4M
Elastomeric yarn, single, untwisted or with a twist not exceeding 50 turns per meterHS 5402.44$33.9M$42.5M
Synthetic filament yarn other than sewing thread, not put up for retail sale, textured yarn of nylon or other polyamides, over 500 decitexHS 5402.32$20.3M$29.2M
Polyester filament yarn, single, untwisted or with a twist not exceeding 50 turns per meter, not put up for retail sale, not elsewhere specifiedHS 5402.47$32.4M$13.2M
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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