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

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Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives

In short

  • The US imported $28.5M of this product over the 12 months to August 2026, down 23% on the year before.
  • Germany is the largest supplier, with 69.7% of US imports; China is next, with 14.3%.
  • Germany is the cheapest main supplier before and after freight and duty, landing at $2.70/kg.
  • Duty paid averaged 14.3% of the value of imports in August 2026, down 0.5 points on a year earlier.
  • China is gaining share: 26.8% over the last 12 months, up from 19.8%.
  • 2 Federal Register notices named this product's tariff codes in the last 12 months.

US imports, Aug 2026

$2.7M

↓ −13% vs Aug 2025

Last 12 months

$28.5M

↓ −23% vs the 12 months before

Average duty paid

14.3%

↓ −0.5 pts vs Aug 2025

Top supplier

Germany

69.7% 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 ↑Duty ↓
Show the numbers
MonthUS imports
August 2025$3.1M
September 2025$1.6M
October 2025$2.0M
November 2025$1.7M
December 2025$2.8M
January 2026$2.6M
February 2026$2.2M
March 2026$2.6M
April 2026$2.3M
May 2026$2.9M
June 2026$2.4M
July 2026$2.6M
August 2026$2.7M

What changed

  • US imports were $2.7M in August 2026, up 4.4% from July 2026 and down 13% from August 2025.
  • Over the 12 months to August 2026 they totalled $28.5M, down 23% on the 12 months before.
  • Biggest moves in market share since July 2026: Germany up from 26.9% to 69.7%, Japan down from 38.0% to 6.6%.
  • Average price from Japan fell 61% since July 2026, to $6.04/kg.
  • Duty paid on imports from Germany fell from 13.9% to 9.2% of their value since July 2026.
  • Duty paid on imports from China rose from 38.0% to 41.7% of their value since July 2026.

US trade by year

US imports were $28.5M in the 12 months to Aug 2026, up 10% on the 12 months to Aug 2017. US exports were $41.6M, down 11%. 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 ↑China ↑Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$25.8M
12 months to Aug 2018$34.4M
12 months to Aug 2019$36.7M
12 months to Aug 2020$26.6M
12 months to Aug 2021$30.8M
12 months to Aug 2022$45.5M
12 months to Aug 2023$30.6M
12 months to Aug 2024$32.9M
12 months to Aug 2025$36.8M
12 months to Aug 2026$28.5M
  • China
  • Germany
  • Japan
  • Korea, South
  • All countries
Share of US imports
Show the numbers
PeriodChinaGermanyJapanKorea, South
12 months to Aug 201729.5%14.5%35.3%0.3%
12 months to Aug 201829.0%13.6%38.8%0.2%
12 months to Aug 201934.8%13.2%30.1%0.0%
12 months to Aug 202035.0%13.1%31.3%0.9%
12 months to Aug 202127.6%16.6%23.3%3.3%
12 months to Aug 202221.8%18.8%27.9%2.0%
12 months to Aug 202325.0%13.1%17.2%3.8%
12 months to Aug 202427.4%14.9%20.5%1.4%
12 months to Aug 202519.8%21.1%22.2%8.7%
12 months to Aug 202626.8%25.9%16.3%10.3%
Duty paid, % of value
Show the numbers
PeriodChinaGermanyJapanKorea, SouthAll countries
12 months to Aug 20174.2%4.2%4.2%0.0%4.2%
12 months to Aug 20184.2%4.2%4.2%0.0%4.2%
12 months to Aug 201910.7%4.2%4.2%n/a5.5%
12 months to Aug 202018.9%4.2%4.2%0.0%9.0%
12 months to Aug 202123.2%4.2%4.2%0.0%9.7%
12 months to Aug 202229.0%4.2%4.2%0.0%9.9%
12 months to Aug 202329.1%4.2%4.2%0.0%10.8%
12 months to Aug 202429.2%4.2%4.2%0.0%11.5%
12 months to Aug 202537.8%8.4%8.7%2.8%13.6%
12 months to Aug 202646.1%13.1%14.1%6.5%22.4%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$28.5M−23%22.4%+8.8 pts$41.6M−15%
12 months to Aug 2025$36.8M+12%13.6%+2.1 pts$48.9M−5.7%
12 months to Aug 2024$32.9M+7.7%11.5%+0.8 pts$51.9M+26%
12 months to Aug 2023$30.6M−33%10.8%+0.9 pts$41.1M−10.0%
12 months to Aug 2022$45.5M+48%9.9%+0.2 pts$45.7M+4.3%
12 months to Aug 2021$30.8M+16%9.7%+0.7 pts$43.8M+9.9%
12 months to Aug 2020$26.6M−28%9.0%+3.5 pts$39.9M−22%
12 months to Aug 2019$36.7M+6.6%5.5%+1.3 pts$50.8M−7.2%
12 months to Aug 2018$34.4M+34%4.2%0.0 pts$54.8M+17%
12 months to Aug 2017$25.8M4.2%$46.7M

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
Germany$1.9M69.7%+40.0 pts$2.63/kg+40%9.2%−5.2 pts
China$384K14.3%+13.1 pts$4.47/kg+17%41.7%−17.5 pts
Japan$175K6.6%−48.2 pts$6.04/kg−75%12.5%−2.4 pts
Spain$145K5.4%+2.2 pts$63.67/kg−14%11.1%−3.2 pts
Italy$63K2.4%+0.5 pts$6.39/kg−4.0%10.0%−4.2 pts
Taiwan$43K1.6%new$2.16/kg14.2%
Canada$2K0.1%new$2.32/kg0.0%
All countries$2.7M100.0%$3.07/kg−20%14.3%−0.5 pts

The 3 largest suppliers had 68.9% 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
Germany$2.32/kg$0.12/kg5.1% of price$0.26/kg11.3% of price$2.70/kg+15%
Italy$5.70/kg$0.15/kg2.6% of price$0.65/kg11.4% of price$6.50/kg−3.2%
China$5.10/kg$0.14/kg2.8% of price$1.98/kg38.8% of price$7.22/kg−8.4%
Japan$9.86/kg$0.34/kg3.5% of price$1.35/kg13.7% of price$11.55/kg−37%
Spain$64.23/kg$0.87/kg1.4% of price$8.00/kg12.4% of price$73.10/kg−10%
All countries$3.65/kg$0.15/kg4.0% of price$0.67/kg18.2% of price$4.46/kg+1.3%

Landed at a US port, Germany was cheapest, at $2.70/kg: 58.4% below Italy.

Landed cost from Japan fell 37% on a year earlier, to $11.55/kg, mostly on price: $15.59/kg then, $9.86/kg now.

How the market is shifting

China gained the most share: 26.8% of US imports over the last 12 months, up from 19.8% in the 12 months before. Italy lost the most: 5.8%, down from 13.5%. 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
  • Germany
  • Japan
  • Korea, South
  • All countries
Share of US imports
Show the numbers
MonthChinaGermanyJapanKorea, South
September 202435.2%15.7%22.1%0.0%
October 202424.1%5.1%39.8%12.6%
November 202423.8%17.8%23.6%15.9%
December 202426.7%8.4%11.3%24.3%
January 202515.8%43.0%6.6%9.3%
February 202516.1%16.0%8.1%1.8%
March 202532.9%18.2%5.8%1.6%
April 20258.3%10.9%8.1%14.8%
May 20258.8%26.0%33.9%2.7%
June 20258.1%52.3%13.2%0.0%
July 202536.1%24.9%21.0%3.7%
August 20251.2%29.6%54.8%8.1%
September 202516.6%28.3%19.6%17.0%
October 202530.1%35.2%12.4%1.2%
November 202566.4%3.5%8.0%9.2%
December 202539.0%2.2%4.9%44.2%
January 202630.5%5.9%17.4%0.0%
February 202615.4%25.0%15.1%0.0%
March 202619.2%29.2%11.3%1.1%
April 202620.7%21.1%34.8%1.1%
May 202622.0%27.8%4.5%37.6%
June 202626.4%31.2%26.6%4.0%
July 202628.7%26.9%38.0%0.0%
August 202614.3%69.7%6.6%0.0%
Duty paid, % of value
Show the numbers
MonthChinaGermanyJapanKorea, SouthAll countries
September 202429.2%4.2%4.2%n/a13.1%
October 202429.2%4.2%4.2%2.0%10.0%
November 202429.2%4.2%4.2%4.2%10.0%
December 202429.2%4.2%4.2%1.5%10.3%
January 202529.2%4.2%4.2%0.4%7.5%
February 202529.4%4.2%4.2%0.0%9.4%
March 202544.2%4.2%4.2%0.0%19.3%
April 202547.4%4.2%4.2%0.0%9.2%
May 202553.7%11.7%13.7%10.0%17.2%
June 202559.2%14.2%14.2%n/a17.8%
July 202558.2%14.2%14.2%10.0%29.9%
August 202559.2%14.4%14.9%10.0%14.8%
September 202559.2%15.0%15.4%8.5%21.8%
October 202559.2%15.0%11.6%15.0%28.3%
November 202554.8%15.0%15.0%15.0%40.8%
December 202548.9%15.0%15.0%6.0%24.9%
January 202649.2%15.0%15.0%n/a31.1%
February 202639.9%15.0%15.0%n/a21.5%
March 202639.2%14.2%14.4%10.0%18.9%
April 202637.1%14.2%14.2%10.0%19.5%
May 202639.2%14.2%14.2%4.5%16.0%
June 202638.1%14.2%14.2%10.0%20.4%
July 202638.0%13.9%13.6%n/a20.3%
August 202641.7%9.2%12.5%n/a14.3%

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–February 2026 · Duty paid: China 57.0% → 39.6%, all countries 29.7% → 19.5%.
  2. September 2025 · Duty paid: all countries 17.6% → 26.5%.
  3. March–June 2025 · Duty paid: China 29.3% → 56.0%, Germany 4.2% → 14.3%, Japan 4.2% → 14.5%, Italy 4.2% → 14.2%, all countries 9.1% → 17.6%.
  4. December 2020 · Duty paid: China 16.1% → 29.2%.
  5. July 2020 · Duty paid: China 24.6% → 16.1%.
  6. January 2020 · Duty paid: China 12.2% → 25.9%.
  7. September 2018 · Duty paid: China 4.2% → 12.3%.

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 2917.20

Where it enters the US

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

  1. Norfolk-Newport News, VA$6.5M · 22.9%
  2. Los Angeles, CA$5.6M · 19.6%
  3. Charleston, SC$5.2M · 18.3%
  4. Newark, NJ$4.7M · 16.4%
  5. Houston, TX$2.4M · 8.3%

Where US exports go

US exports were $3.7M in August 2026, up 1.6% from August 2025, and $41.6M over the last 12 months, down 15% on the 12 months before. Fastest-growing market with 3% or more of US exports: Finland, up 28701%.

MarketLast 12 monthsSharevs 12 months before
Canada$4.9M11.8%−0.8%
Japan$4.6M11.1%+21%
Belgium$4.3M10.4%−34%
Mexico$3.6M8.7%−20%
India$3.0M7.3%+9.4%
China$2.8M6.7%−42%
Korea, South$2.3M5.5%+1.8%
Argentina$1.8M4.4%+54%
Other countries (30)$14.2M34.1%−20%
All countries$41.6M100.0%−15%

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; 83 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
China$47.5Min 2025+8.5%$1.9MUS records $4.8M4.1%
Germany$46.0Min 2025+7.6%$5.2MUS records $769K11.3%
India$40.3Min 2025−0.4%$3.0M7.4%
Japan$25.6Min 2025−7.5%$1.3MUS records $4.5M5.2%
Italy$24.6Min 2025−0.4%$156K0.6%
Switzerland$21.0Min 2025+3.3%$2.6MUS records $977K12.6%
France$20.4Min 2025−6.7%$421K2.1%
Netherlands$20.0Min 2025−7.1%$2.8M14.2%

The biggest market outside the US is China, which imported $47.5M of this product in 2025, 4.1% of that from the US by its own count; the US records $4.8M of exports there.

Other products under heading 2917: polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives. US trade over the 12 months to August 2026.

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.
  • 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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