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

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HS 5402.39

Synthetic filament yarn other than sewing thread, not put up for retail sale, textured yarn not elsewhere specified

In short

  • The US imported $2.2M of this product over the 12 months to August 2026, down 2.1% on the year before.
  • Vietnam is the largest supplier, with 52.5% of US imports; China is next, with 44.3%.
  • India is the cheapest main supplier before and after freight and duty, landing at $3.38/kg.
  • Duty paid averaged 31.4% of the value of imports in August 2026, up 9.7 points on a year earlier.
  • Vietnam is gaining share: 21.9% over the last 12 months, up from 0.0%.
  • US exports were $4.1M over the last 12 months; the largest market is Belgium, with 25.6%.

US imports, Aug 2026

$280K

↑ +36% vs Aug 2025

Last 12 months

$2.2M

↓ −2.1% vs the 12 months before

Average duty paid

31.4%

↑ +9.7 pts vs Aug 2025

Top supplier

Vietnam

52.5% 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$207K
September 2025$160K
October 2025$189K
November 2025$311K
December 2025$208K
January 2026$210K
February 2026$25K
March 2026$153K
April 2026$239K
May 2026$68K
June 2026$195K
July 2026$196K
August 2026$280K

What changed

  • US imports were $280K in August 2026, up 43% from July 2026 and up 36% from August 2025.
  • Over the 12 months to August 2026 they totalled $2.2M, down 2.1% on the 12 months before.
  • Biggest moves in market share since July 2026: Vietnam up from 0.0% to 52.5%, Thailand down from 28.2% to 0.0%.
  • Average price from China fell 17% since July 2026, to $7.15/kg.
  • Duty paid on imports from India rose from 10.1% to 18.0% of their value since July 2026.

US trade by year

US imports were $2.2M in the 12 months to Aug 2026, up 80% on the 12 months to Aug 2017. US exports were $4.1M, up 457%. 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 ↓
Show the numbers
PeriodUS imports
12 months to Aug 2017$1.2M
12 months to Aug 2018$1.8M
12 months to Aug 2019$1.2M
12 months to Aug 2020$1.6M
12 months to Aug 2021$2.2M
12 months to Aug 2022$1.6M
12 months to Aug 2023$2.6M
12 months to Aug 2024$2.1M
12 months to Aug 2025$2.3M
12 months to Aug 2026$2.2M
  • China
  • Vietnam
  • India
  • Thailand
  • All countries
Share of US imports
Show the numbers
PeriodChinaVietnamIndiaThailand
12 months to Aug 201782.5%0.0%0.0%0.0%
12 months to Aug 201898.1%0.0%0.0%0.1%
12 months to Aug 201982.0%0.0%0.0%0.0%
12 months to Aug 202082.0%0.0%0.0%13.1%
12 months to Aug 202183.3%0.0%0.9%9.4%
12 months to Aug 202266.6%0.4%0.1%16.3%
12 months to Aug 202379.3%0.0%4.0%7.1%
12 months to Aug 202445.4%1.4%29.9%2.7%
12 months to Aug 202564.3%0.0%31.2%1.2%
12 months to Aug 202646.6%21.9%15.4%10.6%
Duty paid, % of value
Show the numbers
PeriodChinaVietnamIndiaThailandAll countries
12 months to Aug 20178.5%n/an/an/a8.5%
12 months to Aug 20188.5%n/a8.0%8.0%8.5%
12 months to Aug 201918.7%n/an/an/a16.8%
12 months to Aug 202032.3%n/a8.6%8.8%28.1%
12 months to Aug 202133.8%n/a8.8%8.5%29.4%
12 months to Aug 202227.3%8.0%8.8%8.0%21.0%
12 months to Aug 202330.4%n/a8.7%8.0%25.8%
12 months to Aug 202430.0%8.0%8.0%8.0%17.0%
12 months to Aug 202539.4%n/a13.6%17.8%30.3%
12 months to Aug 202651.3%22.8%40.3%19.0%37.8%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$2.2M−2.1%37.8%+7.5 pts$4.1M+65%
12 months to Aug 2025$2.3M+11%30.3%+13.2 pts$2.5M+93%
12 months to Aug 2024$2.1M−21%17.0%−8.8 pts$1.3M−30%
12 months to Aug 2023$2.6M+65%25.8%+4.8 pts$1.8M+28%
12 months to Aug 2022$1.6M−27%21.0%−8.5 pts$1.4M−8.2%
12 months to Aug 2021$2.2M+40%29.4%+1.3 pts$1.6M+35%
12 months to Aug 2020$1.6M+30%28.1%+11.3 pts$1.2M+16%
12 months to Aug 2019$1.2M−35%16.8%+8.3 pts$1.0M−53%
12 months to Aug 2018$1.8M+48%8.5%0.0 pts$2.1M+188%
12 months to Aug 2017$1.2M8.5%$738K

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
Vietnam$147K52.5%new$26.73/kg20.5%
China$124K44.3%+36.1 pts$7.15/kg−28%45.5%−18.1 pts
India$6K2.3%−85.2 pts$2.37/kg−47%18.0%0.0 pts
Mexico$2K0.9%+0.7 pts$12.26/kg−61%0.0%0.0 pts
All countries$280K100.0%$10.88/kg+128%31.4%+9.7 pts

The 3 largest suppliers had 83.9% 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
India$2.60/kg$0.40/kg15.3% of price$0.38/kg14.6% of price$3.38/kg−38%
Thailand$3.77/kg$0.15/kg3.9% of price$0.48/kg12.6% of price$4.39/kg−29%
Belgium$9.24/kg$0.69/kg7.4% of price$1.27/kg13.7% of price$11.19/kg+24%
China$7.73/kg$0.84/kg10.9% of price$3.46/kg44.8% of price$12.03/kg+49%
Vietnam$26.53/kg$2.65/kg10.0% of price$5.22/kg19.7% of price$34.41/kg
All countries$6.79/kg$0.66/kg9.7% of price$1.75/kg25.8% of price$9.20/kg+43%

Landed at a US port, India was cheapest, at $3.38/kg: 23.1% below Thailand.

Landed cost from China rose 49% on a year earlier, to $12.03/kg, mostly on price: $4.59/kg then, $7.73/kg now.

How the market is shifting

Vietnam gained the most share: 21.9% of US imports over the last 12 months, up from 0.0% in the 12 months before. China lost the most: 46.6%, down from 64.3%. 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.

  • China
  • Vietnam
  • India
  • Thailand
  • All countries
Share of US imports
Show the numbers
MonthChinaVietnamIndiaThailand
September 202439.5%0.0%18.9%0.0%
October 202457.0%0.0%35.9%0.0%
November 202494.7%0.0%0.0%0.5%
December 202499.7%0.0%0.0%0.0%
January 202541.4%0.0%56.2%0.0%
February 20250.8%0.0%97.9%0.0%
March 202530.9%0.0%67.0%0.0%
April 202591.3%0.0%0.0%0.0%
May 202552.0%0.0%46.9%0.0%
June 202562.0%0.0%35.6%0.0%
July 202513.3%0.0%29.4%34.4%
August 20258.3%0.0%87.4%0.0%
September 202595.3%4.7%0.0%0.0%
October 202510.8%0.0%63.5%18.3%
November 202563.5%23.6%11.9%0.0%
December 202579.3%17.3%0.0%0.0%
January 202633.4%24.3%17.1%25.2%
February 202637.9%0.0%62.1%0.0%
March 202618.2%68.2%11.8%0.0%
April 202654.9%0.0%14.3%19.5%
May 202665.9%0.0%12.4%0.0%
June 202614.9%36.0%18.7%24.4%
July 202634.7%0.0%16.5%28.2%
August 202644.3%52.5%2.3%0.0%
Duty paid, % of value
Show the numbers
MonthChinaVietnamIndiaThailandAll countries
September 202433.8%n/a8.0%n/a15.8%
October 20244.9%n/a8.0%n/a6.1%
November 202433.4%n/an/a8.0%31.6%
December 202433.7%n/an/an/a33.7%
January 202533.5%n/a8.0%n/a18.6%
February 202533.8%n/a8.0%n/a8.1%
March 20250.0%n/a8.0%n/a5.6%
April 202563.6%n/an/an/a59.7%
May 202563.1%n/a18.0%n/a41.5%
June 202563.8%n/a18.0%n/a46.0%
July 202563.6%n/a18.0%18.0%26.7%
August 202563.6%n/a18.0%n/a21.7%
September 202563.2%28.0%n/an/a61.5%
October 202563.4%n/a58.0%27.0%49.3%
November 202553.8%28.0%58.0%n/a47.7%
December 202553.3%28.0%n/an/a47.6%
January 202653.8%28.0%58.0%27.0%41.5%
February 202653.7%n/a33.0%n/a40.8%
March 202643.8%20.8%18.0%n/a24.3%
April 202643.1%n/a18.0%18.0%31.8%
May 202643.8%n/a18.0%n/a31.3%
June 202643.8%18.0%18.0%18.0%21.9%
July 202643.8%n/a10.1%8.0%21.6%
August 202645.5%20.5%18.0%n/a31.4%

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. March 2026 · Duty paid: all countries 47.6% → 24.3%.

Where it enters the US

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

  1. Los Angeles, CA$737K · 33.0%
  2. Newark, NJ$411K · 18.4%
  3. Long Beach, CA$365K · 16.3%
  4. Norfolk-Newport News, VA$190K · 8.5%
  5. Charleston, SC$165K · 7.4%

Where US exports go

US exports were $206K in August 2026, up 48% from August 2025, and $4.1M over the last 12 months, up 65% on the 12 months before. Fastest-growing market with 3% or more of US exports: India, up 454%.

MarketLast 12 monthsSharevs 12 months before
Belgium$1.1M25.6%new
Australia$991K24.1%new
Canada$817K19.9%+9.7%
India$549K13.4%+454%
China$523K12.7%−18%
Turkey$86K2.1%+739%
Mexico$57K1.4%−68%
Germany$22K0.5%−50%
Other countries (2)$13K0.3%−97%
All countries$4.1M100.0%+65%

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; 105 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Netherlands$6.3Min 2025−11%$5150.0%
Philippines$3.5Min 2025+11%$2110.0%
Morocco$2.9Min 2025+1342%$00.0%
Korea, South$2.9Min 2025−14%$00.0%
India$2.4Min 2025+76%$604K25.1%
Uzbekistan$2.4Min 2024−0.6%$00.0%
Thailand$2.0Min 2025+30%$127K6.2%
Poland$1.9Min 2025+49%$40.0%

The biggest market outside the US is the Netherlands, which imported $6.3M of this product in 2025, under 0.1% of it from the US.

The US supplies 25.1% of imports into India, but under 10% into the Netherlands, the Philippines and Morocco.

Of these, imports into India grew fastest: up 76% 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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