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

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HS 2917.37

Dimethyl terephthalate

In short

  • The US imported $1.7M of this product over the 12 months to August 2026, down 27% on the year before.
  • Korea, South is the largest supplier, with 94.8% of US imports; Japan is next, with 3.3%.
  • Duty paid averaged 12.5% of the value of imports in August 2026, up 2.5 points on a year earlier.
  • Korea, South is gaining share: 95.5% over the last 12 months, up from 86.6%.
  • 2 Federal Register notices named this product's tariff codes in the last 12 months.
  • US exports were $2.2M over the last 12 months; the largest market is Germany, with 48.0%.

US imports, Aug 2026

$197K

↓ −47% vs Aug 2025

Last 12 months

$1.7M

↓ −27% vs the 12 months before

Average duty paid

12.5%

↑ +2.5 pts vs Aug 2025

Top supplier

Korea, South

94.8% 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$373K
September 2025$5K
October 2025$216K
November 2025$53K
December 2025$68K
January 2026$53K
February 2026$210K
March 2026$82K
April 2026$293K
May 2026$191K
June 2026$72K
July 2026$270K
August 2026$197K

What changed

  • US imports were $197K in August 2026, down 27% from July 2026 and down 47% from August 2025.
  • Over the 12 months to August 2026 they totalled $1.7M, down 27% on the 12 months before.
  • Biggest moves in market share since July 2026: Japan up from 1.0% to 3.3%, Korea, South down from 99.0% to 94.8%.
  • Average price from Korea, South rose 12% since July 2026, to $2.08/kg.
  • Duty paid on imports from Japan fell from 16.5% to 12.5% of their value since July 2026.
  • Duty paid on imports from Korea, South rose from 10.0% to 12.5% of their value since July 2026.

US trade by year

US imports were $1.7M in the 12 months to Aug 2026, down 11% on the 12 months to Aug 2017. US exports were $2.2M, up 82%. 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$1.9M
12 months to Aug 2018$2.6M
12 months to Aug 2019$1.7M
12 months to Aug 2020$1.3M
12 months to Aug 2021$1.7M
12 months to Aug 2022$3.6M
12 months to Aug 2023$2.2M
12 months to Aug 2024$2.2M
12 months to Aug 2025$2.3M
12 months to Aug 2026$1.7M
  • Korea, South
  • China
  • Japan
  • Switzerland
  • All countries
Share of US imports
Show the numbers
PeriodKorea, SouthChinaJapanSwitzerland
12 months to Aug 201743.7%0.2%10.5%0.0%
12 months to Aug 201838.6%0.0%0.6%0.0%
12 months to Aug 201931.7%0.0%6.3%0.0%
12 months to Aug 202042.8%0.0%3.2%0.0%
12 months to Aug 202138.9%1.3%4.8%0.0%
12 months to Aug 202212.2%0.0%1.0%0.0%
12 months to Aug 202337.8%0.0%0.8%0.0%
12 months to Aug 202455.0%0.0%2.1%0.3%
12 months to Aug 202586.6%0.0%0.6%0.0%
12 months to Aug 202695.5%3.1%1.2%0.2%
Duty paid, % of value
Show the numbers
PeriodKorea, SouthChinaJapanSwitzerlandAll countries
12 months to Aug 20170.0%6.5%6.5%n/a1.5%
12 months to Aug 20180.0%n/a6.5%n/a1.5%
12 months to Aug 20190.0%n/a6.5%n/a3.3%
12 months to Aug 20200.0%n/a6.5%n/a3.7%
12 months to Aug 20210.0%31.5%6.5%n/a4.3%
12 months to Aug 20220.0%n/a6.5%n/a5.7%
12 months to Aug 20230.0%n/a6.5%n/a4.0%
12 months to Aug 20240.0%n/a6.5%6.5%2.9%
12 months to Aug 20253.6%n/a10.7%n/a4.0%
12 months to Aug 202611.9%61.5%14.9%12.5%13.5%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$1.7M−27%13.5%+9.5 pts$2.2M+19%
12 months to Aug 2025$2.3M+6.1%4.0%+1.1 pts$1.9M−1.6%
12 months to Aug 2024$2.2M+0.8%2.9%−1.1 pts$1.9M−68%
12 months to Aug 2023$2.2M−40%4.0%−1.7 pts$6.0M+2726%
12 months to Aug 2022$3.6M+117%5.7%+1.4 pts$213K+9.3%
12 months to Aug 2021$1.7M+25%4.3%+0.6 pts$195K+378%
12 months to Aug 2020$1.3M−21%3.7%+0.4 pts$41K+15%
12 months to Aug 2019$1.7M−36%3.3%+1.8 pts$35K−65%
12 months to Aug 2018$2.6M+37%1.5%0.0 pts$100K−92%
12 months to Aug 2017$1.9M1.5%$1.2M

Who supplies the US

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

CountryUS importsShareAverage priceDuty paidLast 13 months
Korea, South$187K94.8%−5.2 pts$2.08/kg+21%12.5%+2.5 pts
Japan$6K3.3%new$2.57/kg12.5%
Switzerland$4K1.9%new$3,760/kg12.5%
All countries$197K100.0%$2.13/kg+24%12.5%+2.5 pts

The 3 largest suppliers had 99.8% of US imports over the last 12 months.

How the market is shifting

Korea, South gained the most share: 95.5% of US imports over the last 12 months, up from 86.6% in the 12 months before. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • Korea, South
  • China
  • Japan
  • Switzerland
  • All countries
Share of US imports
Show the numbers
MonthKorea, SouthChinaJapanSwitzerland
September 202471.7%0.0%0.0%0.0%
October 20240.0%0.0%0.0%0.0%
November 202454.1%0.0%0.0%0.0%
December 202494.7%0.0%5.3%0.0%
January 2025100.0%0.0%0.0%0.0%
February 2025100.0%0.0%0.0%0.0%
March 2025n/an/an/an/a
April 2025100.0%0.0%0.0%0.0%
May 202591.1%0.0%8.9%0.0%
June 2025100.0%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 20250.0%0.0%100.0%0.0%
October 2025100.0%0.0%0.0%0.0%
November 20250.0%100.0%0.0%0.0%
December 2025100.0%0.0%0.0%0.0%
January 2026100.0%0.0%0.0%0.0%
February 2026100.0%0.0%0.0%0.0%
March 2026100.0%0.0%0.0%0.0%
April 2026100.0%0.0%0.0%0.0%
May 2026100.0%0.0%0.0%0.0%
June 202691.0%0.0%9.0%0.0%
July 202699.0%0.0%1.0%0.0%
August 202694.8%0.0%3.3%1.9%
Duty paid, % of value
Show the numbers
MonthKorea, SouthChinaJapanSwitzerlandAll countries
September 20240.0%n/an/an/a1.8%
October 2024n/an/an/an/a6.5%
November 20240.0%n/an/an/a3.0%
December 20240.0%n/a6.5%n/a0.3%
January 20250.0%n/an/an/a0.0%
February 20250.0%n/an/an/a0.0%
March 2025n/an/an/an/an/a
April 20250.0%n/an/an/a0.0%
May 202510.0%n/a16.5%n/a10.6%
June 202510.0%n/an/an/a10.0%
July 202510.0%n/an/an/a10.0%
August 202510.0%n/an/an/a10.0%
September 2025n/an/a15.0%n/a15.0%
October 202515.0%n/an/an/a15.0%
November 2025n/a61.5%n/an/a61.5%
December 202515.0%n/an/an/a15.0%
January 202615.0%n/an/an/a15.0%
February 202613.1%n/an/an/a13.1%
March 202610.0%n/an/an/a10.0%
April 202610.0%n/an/an/a10.0%
May 202611.8%n/an/an/a11.8%
June 202610.0%n/a16.5%n/a10.6%
July 202610.0%n/a16.5%n/a10.1%
August 202612.5%n/a12.5%12.5%12.5%

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. July 2023 · Duty paid: all countries 0.0% → 5.2%.

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 2917.37

Where it enters the US

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

  1. Newark, NJ$842K · 49.2%
  2. Savannah, GA$360K · 21.0%
  3. New York, NY$256K · 15.0%
  4. Charleston, SC$152K · 8.9%
  5. Chicago, IL$56K · 3.3%

Where US exports go

US exports were $178K in August 2026, up 350% from August 2025, and $2.2M over the last 12 months, up 19% on the 12 months before. Fastest-growing market with 3% or more of US exports: Spain, up 2515%.

MarketLast 12 monthsSharevs 12 months before
Germany$1.1M48.0%−25%
Spain$476K21.3%+2515%
Netherlands$364K16.3%new
France$293K13.1%+1.5%
Austria$30K1.4%new
All countries$2.2M100.0%+19%

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; 48 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Luxembourg$31.6Min 2025+82%$00.0%
Netherlands$30.6Min 2025+31%$00.0%
China$25.9Min 2025−28%$30.0%
Japan$24.4Min 2025+0.4%$00.0%
Germany$8.4Min 2025+44%$86K1.0%
Italy$4.6Min 2025−29%$00.0%
India$2.7Min 2025−23%$4700.0%
Spain$1.7Min 2025−48%$00.0%

The biggest market outside the US is Luxembourg, which imported $31.6M of this product in 2025, none of it from the US.

Of these, imports into Luxembourg grew fastest: up 82% from 2024 to 2025.

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.

ProductUS importsUS exports
Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, not elsewhere specifiedHS 2917.39$314.4M$155.3M
Terephthalic acid and its saltsHS 2917.36$343.1M$46.9M
Adipic acid, its salts and estersHS 2917.12$30.2M$211.4M
Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, not elsewhere specifiedHS 2917.19$97.1M$87.9M
Dinonyl or didecyl orthophthalatesHS 2917.33$53.3M$30.6M
Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivativesHS 2917.20$28.5M$41.6M
Esters of orthophthalic acid, not elsewhere specifiedHS 2917.34$33.3M$27.3M
Maleic anhydrideHS 2917.14$10.0M$49.3M
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.
  • 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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