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

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Diphosphorus pentaoxide

In short

  • The US imported $7.3M of this product over the 12 months to August 2026, up 4.8% on the year before.
  • France is the largest supplier, with 42.3% of US imports; India is next, with 30.3%.
  • China has the lowest price, but landed at a US port with freight and duty France is cheaper: $2.92/kg against $3.34/kg.
  • Duty paid averaged 17.5% of the value of imports in August 2026, up 4.7 points on a year earlier.
  • China is gaining share: 47.8% over the last 12 months, up from 33.0%.
  • US exports were $1.3M over the last 12 months; the largest market is Mexico, with 80.2%.

US imports, Aug 2026

$226K

↓ −62% vs Aug 2025

Last 12 months

$7.3M

↑ +4.8% vs the 12 months before

Average duty paid

17.5%

↑ +4.7 pts vs Aug 2025

Top supplier

France

42.3% 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 ↑China ↓Duty ↓
Show the numbers
MonthUS imports
August 2025$600K
September 2025$820K
October 2025$660K
November 2025$414K
December 2025$141K
January 2026$301K
February 2026$113K
March 2026$809K
April 2026$879K
May 2026$968K
June 2026$1.3M
July 2026$649K
August 2026$226K

What changed

  • US imports were $226K in August 2026, down 65% from July 2026 and down 62% from August 2025.
  • Over the 12 months to August 2026 they totalled $7.3M, up 4.8% on the 12 months before.
  • Biggest moves in market share since July 2026: France up from 10.1% to 42.3%, India down from 77.4% to 30.3%.
  • Average price from China rose 52% since July 2026, to $3.86/kg.
  • Duty paid on imports from China rose from 35.0% to 37.5% of their value since July 2026.

US trade by year

US imports were $7.3M in the 12 months to Aug 2026, up 4.8% on the 12 months to Aug 2017. US exports were $1.3M, up 41%. 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 ↑Duty ↓Duty ↑China ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$7.0M
12 months to Aug 2018$7.1M
12 months to Aug 2019$5.9M
12 months to Aug 2020$6.0M
12 months to Aug 2021$6.5M
12 months to Aug 2022$17.9M
12 months to Aug 2023$10.3M
12 months to Aug 2024$4.9M
12 months to Aug 2025$7.0M
12 months to Aug 2026$7.3M
  • China
  • India
  • France
  • All countries
Share of US imports
Show the numbers
PeriodChinaIndiaFrance
12 months to Aug 201775.7%3.4%19.3%
12 months to Aug 201883.2%3.8%11.3%
12 months to Aug 201965.2%8.4%24.8%
12 months to Aug 202066.3%12.6%20.1%
12 months to Aug 202155.2%25.7%18.3%
12 months to Aug 202255.6%40.0%3.8%
12 months to Aug 202348.3%28.8%22.4%
12 months to Aug 202464.6%32.1%1.7%
12 months to Aug 202533.0%52.8%14.2%
12 months to Aug 202647.8%37.5%14.8%
Duty paid, % of value
Show the numbers
PeriodChinaIndiaFranceAll countries
12 months to Aug 20170.0%0.0%0.0%0.0%
12 months to Aug 20180.0%0.0%0.0%0.0%
12 months to Aug 201911.2%0.0%0.0%7.3%
12 months to Aug 202025.0%0.0%0.0%16.6%
12 months to Aug 202125.0%0.0%0.0%13.8%
12 months to Aug 202225.0%0.0%0.0%13.9%
12 months to Aug 202325.0%0.0%0.0%12.1%
12 months to Aug 202425.0%0.0%0.0%16.2%
12 months to Aug 202531.7%3.7%3.1%12.8%
12 months to Aug 202640.2%15.8%12.0%26.9%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$7.3M+4.8%26.9%+14.1 pts$1.3M+87%
12 months to Aug 2025$7.0M+43%12.8%−3.3 pts$681K+126%
12 months to Aug 2024$4.9M−53%16.2%+4.1 pts$301K−52%
12 months to Aug 2023$10.3M−42%12.1%−1.8 pts$632K+41%
12 months to Aug 2022$17.9M+176%13.9%+0.1 pts$448K+66%
12 months to Aug 2021$6.5M+8.0%13.8%−2.8 pts$271K−39%
12 months to Aug 2020$6.0M+1.3%16.6%+9.3 pts$442K+35%
12 months to Aug 2019$5.9M−17%7.3%+7.3 pts$328K+12%
12 months to Aug 2018$7.1M+1.9%0.0%0.0 pts$293K−68%
12 months to Aug 2017$7.0M0.0%$903K

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
France$96K42.3%+26.7 pts$2.25/kg+5.4%10.0%−2.6 pts
India$69K30.3%−48.6 pts$2.65/kg+4.2%10.0%0.0 pts
China$62K27.3%+21.9 pts$3.86/kg+89%37.5%−17.5 pts
All countries$226K100.0%$2.68/kg+10%17.5%+4.7 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
France$2.45/kg$0.23/kg9.4% of price$0.24/kg10.0% of price$2.92/kg+23%
India$2.55/kg$0.17/kg6.5% of price$0.24/kg9.4% of price$2.96/kg−1.0%
China$2.36/kg$0.16/kg6.6% of price$0.83/kg35.2% of price$3.34/kg−15%
All countries$2.47/kg$0.17/kg6.9% of price$0.44/kg17.8% of price$3.08/kg+5.0%

Landed at a US port, France was cheapest, at $2.92/kg: 1.2% below India.

China had the lowest price before freight and duty, $2.36/kg, but they added 41.8% to it.

Landed cost from France rose 23% on a year earlier, to $2.92/kg, mostly on price: $1.94/kg then, $2.45/kg now.

How the market is shifting

China gained the most share: 47.8% of US imports over the last 12 months, up from 33.0% in the 12 months before. India lost the most: 37.5%, down from 52.8%. 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.

  • China
  • India
  • France
  • All countries
Share of US imports
Show the numbers
MonthChinaIndiaFrance
September 202459.9%33.6%6.5%
October 202436.0%55.4%8.6%
November 202444.8%55.2%0.0%
December 202428.2%9.5%62.3%
January 202544.0%45.7%10.3%
February 202518.9%68.6%12.4%
March 202546.7%34.6%18.7%
April 202565.4%29.3%5.4%
May 202515.2%69.9%14.9%
June 20250.0%87.8%12.2%
July 20257.7%80.6%11.7%
August 20255.4%78.9%15.7%
September 20254.0%90.2%5.8%
October 202596.6%3.4%0.0%
November 202530.7%35.4%33.8%
December 202523.2%0.0%76.8%
January 202655.6%24.7%19.7%
February 202638.9%0.0%61.1%
March 202683.2%6.0%10.8%
April 202650.3%29.3%20.4%
May 202664.1%29.2%6.7%
June 202643.0%44.9%12.1%
July 202612.5%77.4%10.1%
August 202627.3%30.3%42.3%
Duty paid, % of value
Show the numbers
MonthChinaIndiaFranceAll countries
September 202425.0%0.0%0.0%15.0%
October 202425.0%0.0%0.0%9.0%
November 202425.0%0.0%n/a11.2%
December 202425.0%0.0%0.0%7.1%
January 202525.0%0.0%0.0%11.0%
February 202525.0%0.0%0.0%4.7%
March 202539.1%0.0%0.0%18.2%
April 202545.0%0.0%0.0%29.4%
May 202545.0%4.3%10.0%11.3%
June 2025n/a10.0%10.0%10.0%
July 202555.0%10.0%10.0%13.5%
August 202555.0%10.0%12.6%12.9%
September 202555.0%19.3%15.0%20.5%
October 202555.0%50.0%n/a54.8%
November 202548.8%50.0%15.0%37.8%
December 202545.0%n/a15.0%22.0%
January 202645.0%50.0%15.0%40.3%
February 202645.0%n/a15.0%26.7%
March 202635.9%10.0%10.0%30.9%
April 202635.0%10.0%10.0%23.9%
May 202635.0%10.0%10.0%26.0%
June 202635.0%10.0%10.0%20.7%
July 202635.0%8.6%10.0%12.1%
August 202637.5%10.0%10.0%17.5%

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. May 2026 · Duty paid: all countries 28.6% → 18.9%.
  2. February 2026 · Duty paid: China 48.8% → 35.0%.
  3. August–October 2025 · Duty paid: India 7.1% → 19.3%, all countries 12.8% → 39.3%.
  4. January 2025 · Duty paid: China 25.0% → 39.1%.
  5. September 2024 · Duty paid: all countries 18.5% → 10.3%.
  6. March 2024 · Duty paid: all countries 7.1% → 18.5%.
  7. September 2020 · Duty paid: all countries 16.3% → 7.4%.
  8. July 2019 · Duty paid: all countries 4.9% → 15.5%.
  9. April 2019 · Duty paid: China 10.0% → 25.0%.
  10. November 2018 · Duty paid: China 0.0% → 10.0%.

Where it enters the US

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

  1. Houston, TX$2.6M · 35.4%
  2. Charleston, SC$2.4M · 33.6%
  3. Savannah, GA$1.9M · 25.4%
  4. Los Angeles, CA$241K · 3.3%
  5. Norfolk-Newport News, VA$74K · 1.0%

Where US exports go

US exports were $359K in August 2026, up 1802% from August 2025, and $1.3M over the last 12 months, up 87% on the 12 months before. Fastest-growing market with 3% or more of US exports: Mexico, up 4024%.

MarketLast 12 monthsSharevs 12 months before
Mexico$1.0M80.2%+4024%
Brazil$120K9.4%0.0%
Canada$99K7.8%−50%
Germany$32K2.5%+829%
All countries$1.3M100.0%+87%

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; 74 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Spain$9.0Min 2025+3.4%$1180.0%
Germany$7.9Min 2025−28%$12K0.1%
India$7.8Min 2025+20%$2K0.0%
Netherlands$3.8Min 2025−23%$8520.0%
Italy$2.8Min 2025−20%$00.0%
Korea, South$1.4Min 2025+9.6%$3030.0%
France$1.2Min 2025+63%$6450.1%
United Kingdom$1.1Min 2025−58%$1K0.1%

The biggest market outside the US is Spain, which imported $9.0M of this product in 2025, under 0.1% of it from the US.

Of these, imports into India grew fastest: up 20% from 2024 to 2025.

Other products under heading 2809: diphosphorus pentaoxide; phosphoric acid and polyphosphoric acids. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Phosphoric acid and polyphosphoric acidsHS 2809.20$343.2M$403.4M
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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