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

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HS 2914.13

4-methylpentan-2-one (methyl isobutyl ketone)

In short

  • The US imported $4.5M of this product over the 12 months to August 2026, down 20% on the year before.
  • South Africa is the largest supplier, with 92.1% of US imports; Korea, South is next, with 7.9%.
  • India is the cheapest main supplier before and after freight and duty, landing at $1.98/kg.
  • Duty paid averaged 1.0% of the value of imports in August 2026, up 0.6 points on a year earlier.
  • South Africa is gaining share: 92.3% over the last 12 months, up from 84.8%.
  • US exports were $11.1M over the last 12 months; the largest market is Belgium, with 48.1%.

US imports, Aug 2026

$327K

↓ −38% vs Aug 2025

Last 12 months

$4.5M

↓ −20% vs the 12 months before

Average duty paid

1.0%

↑ +0.6 pts vs Aug 2025

Top supplier

South Africa

92.1% 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$526K
September 2025$590K
October 2025$443K
November 2025$134K
December 2025$438K
January 2026$306K
February 2026$299K
March 2026$319K
April 2026$355K
May 2026$12K
June 2026$573K
July 2026$661K
August 2026$327K

What changed

  • US imports were $327K in August 2026, down 50% from July 2026 and down 38% from August 2025.
  • Over the 12 months to August 2026 they totalled $4.5M, down 20% on the 12 months before.
  • Biggest moves in market share since July 2026: Korea, South up from 0.0% to 7.9%, India down from 9.1% to 0.0%.
  • Average price from South Africa fell 45% since July 2026, to $1.51/kg.
  • Duty paid by the main suppliers held within 2 points of July 2026.

US trade by year

US imports were $4.5M in the 12 months to Aug 2026, down 74% on the 12 months to Aug 2017. US exports were $11.1M, down 58%. 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$17.4M
12 months to Aug 2018$18.7M
12 months to Aug 2019$15.1M
12 months to Aug 2020$11.3M
12 months to Aug 2021$9.9M
12 months to Aug 2022$10.8M
12 months to Aug 2023$14.7M
12 months to Aug 2024$9.7M
12 months to Aug 2025$5.6M
12 months to Aug 2026$4.5M
  • South Africa
  • Mexico
  • Korea, South
  • India
  • All countries
Share of US imports
Show the numbers
PeriodSouth AfricaMexicoKorea, SouthIndia
12 months to Aug 201766.5%32.3%0.2%0.0%
12 months to Aug 201868.6%30.5%0.3%0.0%
12 months to Aug 201981.2%13.2%3.6%0.0%
12 months to Aug 202074.9%21.0%3.1%0.2%
12 months to Aug 202193.3%5.5%0.0%0.0%
12 months to Aug 202280.3%18.6%0.0%0.2%
12 months to Aug 202382.1%16.9%0.0%0.1%
12 months to Aug 202468.8%30.8%0.0%0.0%
12 months to Aug 202584.8%13.2%1.4%0.1%
12 months to Aug 202692.3%2.6%1.9%1.9%
Duty paid, % of value
Show the numbers
PeriodSouth AfricaMexicoKorea, SouthIndiaAll countries
12 months to Aug 20170.1%0.0%4.0%n/a0.1%
12 months to Aug 20180.0%0.0%0.0%n/a0.0%
12 months to Aug 20190.0%0.0%0.0%4.0%0.0%
12 months to Aug 20200.0%0.6%0.8%4.0%0.2%
12 months to Aug 20210.0%0.0%n/an/a0.0%
12 months to Aug 20220.0%0.0%n/a4.0%0.0%
12 months to Aug 20230.0%0.0%n/a4.0%0.0%
12 months to Aug 20240.0%0.0%n/a4.0%0.0%
12 months to Aug 20250.0%0.0%3.8%4.0%0.2%
12 months to Aug 20269.5%0.0%11.7%25.2%9.7%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$4.5M−20%9.7%+9.5 pts$11.1M+14%
12 months to Aug 2025$5.6M−42%0.2%+0.1 pts$9.7M−41%
12 months to Aug 2024$9.7M−34%0.0%0.0 pts$16.5M−2.4%
12 months to Aug 2023$14.7M+37%0.0%0.0 pts$16.9M+16%
12 months to Aug 2022$10.8M+9.0%0.0%0.0 pts$14.6M−32%
12 months to Aug 2021$9.9M−12%0.0%−0.2 pts$21.5M+117%
12 months to Aug 2020$11.3M−25%0.2%+0.1 pts$9.9M−32%
12 months to Aug 2019$15.1M−20%0.0%0.0 pts$14.5M−20%
12 months to Aug 2018$18.7M+7.4%0.0%−0.1 pts$18.0M−32%
12 months to Aug 2017$17.4M0.1%$26.3M

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
South Africa$301K92.1%−6.5 pts$1.51/kg+2.5%0.0%0.0 pts
Korea, South$26K7.9%new$1.97/kg12.5%
All countries$327K100.0%$1.54/kg+2.8%1.0%+0.6 pts

The 3 largest suppliers had 96.8% 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
India$1.72/kg$0.01/kg0.7% of price$0.24/kg14.0% of price$1.98/kg
South Africa$1.84/kg$0.17/kg9.3% of price$0.00/kg0.0% of price$2.02/kg+26%
Korea, South$2.01/kg$0.34/kg16.8% of price$0.23/kg11.2% of price$2.58/kg
All countries$1.84/kg$0.17/kg9.2% of price$0.02/kg0.9% of price$2.03/kg+26%

Landed at a US port, India was cheapest, at $1.98/kg: 1.9% below South Africa.

Landed cost from South Africa rose 26% on a year earlier, to $2.02/kg, mostly on price: $1.47/kg then, $1.84/kg now.

How the market is shifting

South Africa gained the most share: 92.3% of US imports over the last 12 months, up from 84.8% in the 12 months before. Mexico lost the most: 2.6%, down from 13.2%. 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.

  • South Africa
  • Mexico
  • Korea, South
  • India
  • All countries
Share of US imports
Show the numbers
MonthSouth AfricaMexicoKorea, SouthIndia
September 2024100.0%0.0%0.0%0.0%
October 202493.0%0.0%5.0%0.0%
November 20240.0%94.5%5.5%0.0%
December 2024100.0%0.0%0.0%0.0%
January 2025100.0%0.0%0.0%0.0%
February 202598.6%0.0%0.0%0.7%
March 202570.9%28.8%0.0%0.0%
April 202599.0%0.0%0.0%1.0%
May 20250.0%0.0%77.3%0.0%
June 2025100.0%0.0%0.0%0.0%
July 2025n/an/an/an/a
August 202598.5%0.0%0.0%0.0%
September 202594.8%0.0%0.0%0.0%
October 202599.5%0.0%0.0%0.0%
November 20250.0%87.6%12.4%0.0%
December 202594.6%0.0%0.0%5.4%
January 202697.5%0.0%0.0%0.0%
February 2026100.0%0.0%0.0%0.0%
March 202693.6%0.0%5.0%0.0%
April 2026100.0%0.0%0.0%0.0%
May 20260.0%0.0%0.0%0.0%
June 202695.3%0.0%4.7%0.0%
July 202690.9%0.0%0.0%9.1%
August 202692.1%0.0%7.9%0.0%
Duty paid, % of value
Show the numbers
MonthSouth AfricaMexicoKorea, SouthIndiaAll countries
September 20240.0%n/an/an/a0.0%
October 20240.0%n/a0.0%n/a0.1%
November 2024n/a0.0%0.0%n/a0.0%
December 20240.0%n/an/an/a0.0%
January 20250.0%n/an/an/a0.0%
February 20250.0%n/an/a4.0%0.1%
March 20250.0%0.0%n/an/a0.1%
April 20250.0%n/an/a4.0%0.0%
May 2025n/an/a14.0%n/a17.4%
June 20250.0%n/an/an/a0.0%
July 2025n/an/an/an/an/a
August 20250.0%n/an/an/a0.4%
September 20250.0%n/an/an/a0.3%
October 202534.0%n/an/an/a34.1%
November 2025n/a0.0%15.0%n/a1.9%
December 202534.0%n/an/a54.0%35.1%
January 202634.0%n/an/an/a34.1%
February 20260.0%n/an/an/a0.0%
March 20260.0%n/a10.0%n/a0.7%
April 20260.0%n/an/an/a0.0%
May 2026n/an/an/an/a14.0%
June 20260.0%n/a10.0%n/a0.5%
July 20260.0%n/an/a14.0%1.3%
August 20260.0%n/a12.5%n/a1.0%

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. February 2026 · Duty paid: South Africa 34.0% → 0.0%, all countries 34.1% → 0.0%.

Where it enters the US

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

  1. Houston, TX$3.4M · 75.9%
  2. Wilmington, NC$848K · 19.0%
  3. Blaine, WA$60K · 1.4%
  4. Newark, NJ$53K · 1.2%
  5. New Orleans, LA$40K · 0.9%

Where US exports go

US exports were $1.1M in August 2026, up 131% from August 2025, and $11.1M over the last 12 months, up 14% on the 12 months before. Fastest-growing market with 3% or more of US exports: Brazil, up 3088%.

MarketLast 12 monthsSharevs 12 months before
Belgium$5.4M48.1%+5.0%
Brazil$2.0M17.9%+3088%
Mexico$2.0M17.8%+95%
Canada$920K8.3%−40%
Korea, South$599K5.4%−29%
Ecuador$82K0.7%+100%
Dominican Republic$42K0.4%+39%
India$41K0.4%new
Other countries (7)$115K1.0%+203%
All countries$11.1M100.0%+14%

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; 93 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
India$58.0Min 2025−13%$20K0.0%
Thailand$15.5Min 2025−20%$00.0%
Germany$12.8Min 2025−36%$26K0.2%
Belgium$12.5Min 2025−35%$4.9M38.9%
Korea, South$8.1Min 2025−25%$679K8.4%
Singapore$7.6Min 2025−23%$4K0.0%
Italy$6.3Min 2025−11%$00.0%
Netherlands$3.5Min 2025+236%$00.0%

The biggest market outside the US is India, which imported $58.0M of this product in 2025, under 0.1% of it from the US.

The US supplies 38.9% of imports into Belgium, but under 10% into India, Thailand and Germany.

Of these, imports into the Netherlands grew fastest: up 236% from 2024 to 2025.

Other products under heading 2914: ketones and quinones, and their halogenated, sulfonated, nitrated or nitrosated derivatives. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function not elsewhere specifiedHS 2914.29$153.7M$47.0M
Butanone (methyl ethyl ketone)HS 2914.12$105.2M$20.4M
Acetone (propanone)HS 2914.11$39.0M$82.8M
Halogenated, sulfonated, nitrated or nitrosated derivatives of ketone and quinones, not elsewhere specifiedHS 2914.79$104.5M$14.0M
Ketone-phenols and ketones with other oxygen functionHS 2914.50$65.1M$33.8M
Acyclic ketones without other oxygen function, not elsewhere specifiedHS 2914.19$33.2M$53.5M
Coenzyme q10 (ubidecarenone (inn))HS 2914.62$71.6M$10.2M
Ketone-alcohols and ketone-aldehydesHS 2914.40$47.2M$4.0M
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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