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

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Dimethyl phosphite

In short

  • The US imported $1.7M of this product over the 12 months to August 2026, down 43% on the year before.
  • India is the largest supplier, with 56.0% of US imports; Germany is next, with 44.0%.
  • Germany is the cheapest main supplier before and after freight and duty, landing at $4.50/kg.
  • Duty paid averaged 12.1% of the value of imports in August 2026, down 1.6 points on a year earlier.
  • Germany is gaining share: 93.9% over the last 12 months, up from 85.6%.
  • 2 Federal Register notices named this product's tariff codes in the last 12 months.

US imports, Aug 2026

$177K

↑ +98% vs Aug 2025

Last 12 months

$1.7M

↓ −43% vs the 12 months before

Average duty paid

12.1%

↓ −1.6 pts vs Aug 2025

Top supplier

India

56.0% 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.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAug
Show the numbers
MonthUS imports
August 2025$89K
September 2025$0
October 2025$69K
November 2025$0
December 2025$0
January 2026$296K
February 2026$71K
March 2026$319K
April 2026$175K
May 2026$149K
June 2026$108K
July 2026$305K
August 2026$177K

What changed

  • US imports were $177K in August 2026, down 42% from July 2026 and up 98% from August 2025.
  • Over the 12 months to August 2026 they totalled $1.7M, down 43% on the 12 months before.
  • Biggest moves in market share since July 2026: India up from 0.0% to 56.0%, Germany down from 100.0% to 44.0%.
  • Average price from Germany stayed within 5% of July 2026, at $3.87/kg.
  • Duty paid by the main suppliers held within 2 points of July 2026.

US trade by year

US imports were $1.7M in the 12 months to Aug 2026, down 57% on the 12 months to Aug 2018. US exports were $456K, down 89%. This code began with the HS 2017 revision in January 2017, taking goods from 2920.90, so its history starts there. 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.

201820192020202120222023202420252026Duty ↑Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2018$3.9M
12 months to Aug 2019$1.8M
12 months to Aug 2020$2.4M
12 months to Aug 2021$1.7M
12 months to Aug 2022$2.0M
12 months to Aug 2023$3.3M
12 months to Aug 2024$2.6M
12 months to Aug 2025$2.9M
12 months to Aug 2026$1.7M
  • Germany
  • India
  • China
  • All countries
Share of US imports
Show the numbers
PeriodGermanyIndiaChina
12 months to Aug 201815.7%0.7%21.7%
12 months to Aug 201912.8%0.0%87.2%
12 months to Aug 202086.8%0.0%13.2%
12 months to Aug 2021100.0%0.0%0.0%
12 months to Aug 2022100.0%0.0%0.0%
12 months to Aug 2023100.0%0.0%0.0%
12 months to Aug 202480.6%19.4%0.0%
12 months to Aug 202585.6%14.4%0.0%
12 months to Aug 202693.9%5.9%0.1%
Duty paid, % of value
Show the numbers
PeriodGermanyIndiaChinaAll countries
12 months to Aug 20183.7%3.7%3.7%1.4%
12 months to Aug 20193.7%n/a17.3%15.5%
12 months to Aug 20203.7%n/a28.7%7.0%
12 months to Aug 20213.7%n/an/a3.7%
12 months to Aug 20223.7%n/an/a3.7%
12 months to Aug 20233.7%n/an/a3.7%
12 months to Aug 20243.7%3.7%n/a3.7%
12 months to Aug 20256.9%11.4%n/a7.6%
12 months to Aug 202612.9%13.7%38.7%13.0%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$1.7M−43%13.0%+5.4 pts$456K−57%
12 months to Aug 2025$2.9M+11%7.6%+3.9 pts$1.1M+349%
12 months to Aug 2024$2.6M−20%3.7%0.0 pts$239K+744%
12 months to Aug 2023$3.3M+59%3.7%0.0 pts$28K−60%
12 months to Aug 2022$2.0M+17%3.7%0.0 pts$70K−77%
12 months to Aug 2021$1.7M−27%3.7%−3.3 pts$306K+150%
12 months to Aug 2020$2.4M+30%7.0%−8.5 pts$122K−44%
12 months to Aug 2019$1.8M−53%15.5%+14.1 pts$218K−95%
12 months to Aug 2018$3.9M1.4%$4.0M

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
India$99K56.0%−44.0 pts$4.31/kg+1.1%13.7%0.0 pts
Germany$78K44.0%new$3.87/kg10.0%
All countries$177K100.0%$4.10/kg−3.8%12.1%−1.6 pts

The 3 largest suppliers had 100.0% 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$3.97/kg$0.07/kg1.8% of price$0.46/kg11.5% of price$4.50/kg+18%
India$4.31/kg$0.41/kg9.6% of price$0.59/kg13.7% of price$5.31/kg+12%
All countries$4.02/kg$0.12/kg3.1% of price$0.48/kg11.9% of price$4.62/kg+11%

Landed at a US port, Germany was cheapest, at $4.50/kg: 15.3% below India.

Landed cost from Germany rose 18% on a year earlier, to $4.50/kg, mostly on price: $3.25/kg then, $3.97/kg now.

How the market is shifting

Germany gained the most share: 93.9% of US imports over the last 12 months, up from 85.6% in the 12 months before. India lost the most: 5.9%, down from 14.4%. The charts show September 2024 to August 2026 for the 3 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.

  • Germany
  • India
  • China
  • All countries
Share of US imports
Show the numbers
MonthGermanyIndiaChina
September 2024n/an/an/a
October 2024100.0%0.0%0.0%
November 2024100.0%0.0%0.0%
December 2024100.0%0.0%0.0%
January 2025100.0%0.0%0.0%
February 2025n/an/an/a
March 2025100.0%0.0%0.0%
April 202544.0%56.0%0.0%
May 2025100.0%0.0%0.0%
June 202556.7%43.3%0.0%
July 202575.7%24.3%0.0%
August 20250.0%100.0%0.0%
September 2025n/an/an/a
October 2025100.0%0.0%0.0%
November 2025n/an/an/a
December 2025n/an/an/a
January 2026100.0%0.0%0.0%
February 2026100.0%0.0%0.0%
March 2026100.0%0.0%0.0%
April 202698.7%0.0%1.3%
May 2026100.0%0.0%0.0%
June 2026100.0%0.0%0.0%
July 2026100.0%0.0%0.0%
August 202644.0%56.0%0.0%
Duty paid, % of value
Show the numbers
MonthGermanyIndiaChinaAll countries
September 2024n/an/an/an/a
October 20243.7%n/an/a3.7%
November 20243.7%n/an/a3.7%
December 20243.7%n/an/a3.7%
January 20253.7%n/an/a3.7%
February 2025n/an/an/an/a
March 20253.7%n/an/a3.7%
April 20253.7%3.7%n/a3.7%
May 202513.7%n/an/a13.7%
June 202513.7%13.7%n/a13.7%
July 202513.7%13.7%n/a13.7%
August 2025n/a13.7%n/a13.7%
September 2025n/an/an/an/a
October 202515.0%n/an/a15.0%
November 2025n/an/an/an/a
December 2025n/an/an/an/a
January 202615.0%n/an/a15.0%
February 20263.7%n/an/a3.7%
March 202613.7%n/an/a13.7%
April 202613.7%n/a38.7%14.0%
May 202613.7%n/an/a13.7%
June 202613.7%n/an/a13.7%
July 202611.2%n/an/a11.2%
August 202610.0%13.7%n/a12.1%

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. April–May 2025 · Duty paid: Germany 3.7% → 13.7%, all countries 3.7% → 13.7%.
  2. July 2019 · Duty paid: China 13.7% → 28.7%, all countries 13.7% → 28.7%.

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 2920.21

Where it enters the US

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

  1. Charleston, SC$1.7M · 99.9%
  2. Chicago, IL$2K · 0.1%

Where US exports go

US exports were $19K in August 2026, down 96% from August 2025, and $456K over the last 12 months, down 57% on the 12 months before.

MarketLast 12 monthsSharevs 12 months before
Mexico$357K78.2%−66%
Brazil$23K5.0%new
Singapore$19K4.1%new
Switzerland$17K3.7%new
Korea, South$12K2.6%new
Canada$10K2.3%new
Iceland$8K1.8%new
Spain$7K1.6%new
Ireland$4K0.8%new
All countries$456K100.0%−57%

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; 26 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Italy$977Kin 2025+146458%$00.0%
Poland$789Kin 2025+2922237%$00.0%
Germany$671Kin 2025+10%$00.0%
Switzerland$348Kin 2025+90%$00.0%
India$241Kin 2025+384%$1220.1%
Spain$162Kin 2025−27%$00.0%
Netherlands$151Kin 2025+71%$00.0%
France$124Kin 2025−12%$00.0%

The biggest market outside the US is Italy, which imported $977K of this product in 2025, none of it from the US.

Other products under heading 2920: esters of inorganic acids of non-metals (excluding esters of hydrogen halides) not elsewhere specified and their salts; their halogenated, sulfonated, nitrated etc. de. 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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