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

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Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)

In short

  • The US imported $470.6M of this product over the 12 months to August 2026, down 31% on the year before.
  • Morocco is the largest supplier, with 76.8% of US imports; Mexico is next, with 16.4%.
  • Saudi Arabia is the cheapest main supplier before and after freight and duty, landing at $871.05/tonne.
  • Duty paid averaged 0.9% of the value of imports in August 2026, up 0.7 points on a year earlier.
  • Morocco is gaining share: 30.2% over the last 12 months, up from 20.5%.
  • 2 Federal Register notices named this product's tariff codes in the last 12 months.

US imports, Aug 2026

$26.4M

↓ −47% vs Aug 2025

Last 12 months

$470.6M

↓ −31% vs the 12 months before

Average duty paid

0.9%

↑ +0.7 pts vs Aug 2025

Top supplier

Morocco

76.8% 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$49.8M
September 2025$61.8M
October 2025$40.4M
November 2025$53.7M
December 2025$23.4M
January 2026$17.1M
February 2026$19.1M
March 2026$44.3M
April 2026$22.4M
May 2026$36.3M
June 2026$68.3M
July 2026$57.4M
August 2026$26.4M

What changed

  • US imports were $26.4M in August 2026, down 54% from July 2026 and down 47% from August 2025.
  • Over the 12 months to August 2026 they totalled $470.6M, down 31% on the 12 months before.
  • Biggest moves in market share since July 2026: Morocco up from 6.3% to 76.8%, Saudi Arabia down from 81.8% to 0.0%.
  • Average price from Morocco rose 21% since July 2026, to $1,806/tonne.
  • Duty paid on imports from Morocco rose from 0.2% to 3.2% of their value since July 2026.

US trade by year

US imports were $470.6M in the 12 months to Aug 2026, up 19% on the 12 months to Aug 2017. US exports were $1.46B, up 79%.

2017201820192020202120222023202420252026
Show the numbers
PeriodUS imports
12 months to Aug 2017$394.8M
12 months to Aug 2018$521.5M
12 months to Aug 2019$840.3M
12 months to Aug 2020$400.6M
12 months to Aug 2021$580.1M
12 months to Aug 2022$526.9M
12 months to Aug 2023$764.0M
12 months to Aug 2024$574.9M
12 months to Aug 2025$681.5M
12 months to Aug 2026$470.6M
  • Morocco
  • Saudi Arabia
  • Mexico
  • Australia
  • All countries
Share of US imports
Show the numbers
PeriodMoroccoSaudi ArabiaMexicoAustralia
12 months to Aug 201758.2%1.4%4.0%0.0%
12 months to Aug 201855.5%2.5%3.4%0.0%
12 months to Aug 201949.6%5.2%8.1%2.9%
12 months to Aug 202068.8%5.9%6.8%0.0%
12 months to Aug 20219.1%23.7%23.1%6.7%
12 months to Aug 202217.8%27.9%14.3%10.0%
12 months to Aug 202315.7%20.7%10.3%11.9%
12 months to Aug 202425.1%24.3%22.6%5.2%
12 months to Aug 202520.5%30.9%28.0%1.5%
12 months to Aug 202630.2%27.8%24.2%4.9%
Duty paid, % of value
Show the numbers
PeriodMoroccoSaudi ArabiaMexicoAustraliaAll countries
12 months to Aug 20170.0%0.0%0.0%n/a0.0%
12 months to Aug 20180.0%0.0%0.0%n/a0.0%
12 months to Aug 20190.0%0.0%0.0%0.0%0.1%
12 months to Aug 20200.0%0.0%0.0%n/a0.1%
12 months to Aug 20210.0%0.0%0.0%0.0%0.1%
12 months to Aug 20220.0%0.0%0.0%0.0%0.6%
12 months to Aug 20230.0%0.0%0.0%0.0%0.2%
12 months to Aug 20240.0%0.0%0.0%0.0%0.2%
12 months to Aug 20254.0%0.0%0.0%0.0%0.2%
12 months to Aug 20262.9%0.0%0.0%7.4%0.9%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$470.6M−31%0.9%+0.7 pts$1.46B+24%
12 months to Aug 2025$681.5M+19%0.2%0.0 pts$1.17B−2.4%
12 months to Aug 2024$574.9M−25%0.2%0.0 pts$1.20B−16%
12 months to Aug 2023$764.0M+45%0.2%−0.5 pts$1.42B−17%
12 months to Aug 2022$526.9M−9.2%0.6%+0.6 pts$1.72B+70%
12 months to Aug 2021$580.1M+45%0.1%−0.1 pts$1.01B+4.4%
12 months to Aug 2020$400.6M−52%0.1%+0.1 pts$970.4M−11%
12 months to Aug 2019$840.3M+61%0.1%+0.1 pts$1.09B+22%
12 months to Aug 2018$521.5M+32%0.0%0.0 pts$893.4M+10%
12 months to Aug 2017$394.8M0.0%$812.0M

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
Morocco$20.3M76.8%+45.6 pts$1,806/tonne3.2%
Mexico$4.3M16.4%−47.7 pts$1,292/tonne+74%0.0%0.0 pts
Canada$609K2.3%+1.0 pts$896.32/tonne+10%0.0%0.0 pts
Russia$555K2.1%+0.1 pts$1,416/tonne+28%0.0%0.0 pts
China$231K0.9%new$1,203/tonne22.1%
Belgium$112K0.4%−0.5 pts$2,289/tonne+56%0.0%−10.0 pts
Israel$93K0.4%+0.1 pts$1,794/tonne+40%0.0%−10.0 pts
Lithuania$72K0.3%+0.2 pts$1,997/tonne+49%0.0%−10.0 pts
Other countries (4)$125K0.5%+0.4 pts$1,137/tonne−81%0.5%−9.5 pts
All countries$26.4M100.0%$1,266/tonne+67%0.9%+0.7 pts

The 3 largest suppliers had 82.2% 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
Saudi Arabia$852.30/tonne$18.74/tonne2.2% of price$0.00/tonne0.0% of price$871.05/tonne
Tunisia$908.02/tonne$34.89/tonne3.8% of price$0.00/tonne0.0% of price$942.91/tonne−36%
Morocco$1,363/tonne$5.35/tonne0.4% of price$1.94/tonne0.1% of price$1,370/tonne−6.7%
Mexico$1,498/tonne$155.57/tonne10.4% of price$0.00/tonne0.0% of price$1,654/tonne+95%
All countries$922.72/tonne$30.59/tonne3.3% of price$1.16/tonne0.1% of price$954.46/tonne+8.8%

Landed at a US port, Saudi Arabia was cheapest, at $871.05/tonne: 7.6% below Tunisia.

Landed cost from Mexico rose 95% on a year earlier, to $1,654/tonne, mostly on price: $815.58/tonne then, $1,498/tonne now.

How the market is shifting

Morocco gained the most share: 30.2% of US imports over the last 12 months, up from 20.5% in the 12 months before. Lithuania lost the most: 0.0%, down from 5.0%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • Morocco
  • Saudi Arabia
  • Mexico
  • Australia
  • All countries
Share of US imports
Show the numbers
MonthMoroccoSaudi ArabiaMexicoAustralia
September 202416.4%42.9%25.7%0.0%
October 202420.9%19.8%56.1%0.0%
November 202447.3%0.0%2.1%22.1%
December 20243.5%65.4%15.4%0.0%
January 20250.0%40.7%22.7%0.0%
February 202513.3%0.0%30.2%0.0%
March 202519.2%75.6%2.5%0.0%
April 202566.3%0.0%12.6%0.0%
May 202569.5%0.0%19.2%0.0%
June 20257.1%0.0%40.6%0.0%
July 202564.4%0.0%26.0%0.0%
August 202531.1%0.0%64.2%0.0%
September 202562.0%0.0%34.5%0.0%
October 202551.1%0.0%6.0%37.9%
November 20252.1%32.1%59.3%3.2%
December 20250.0%0.0%15.9%0.0%
January 20260.0%0.0%28.8%34.9%
February 20260.0%41.8%31.7%0.0%
March 20261.0%34.2%58.4%0.0%
April 202687.9%0.0%5.9%0.0%
May 202682.4%0.0%8.0%0.0%
June 202611.6%63.8%6.5%0.0%
July 20266.3%81.8%8.6%0.0%
August 202676.8%0.0%16.4%0.0%
Duty paid, % of value
Show the numbers
MonthMoroccoSaudi ArabiaMexicoAustraliaAll countries
September 20240.0%0.0%0.0%n/a0.1%
October 20240.0%0.0%0.0%n/a0.1%
November 20240.0%n/a0.0%0.0%0.7%
December 20240.0%0.0%0.0%n/a0.3%
January 2025n/a0.0%0.0%n/a0.0%
February 20250.0%n/a0.0%n/a0.1%
March 2025n/a0.0%0.0%n/a0.1%
April 20250.0%n/a0.0%n/a0.0%
May 20250.0%n/a0.0%n/a0.3%
June 202510.0%n/a0.0%n/a1.2%
July 202510.0%n/a0.0%n/a0.7%
August 2025n/an/a0.0%n/a0.2%
September 202510.0%n/a0.0%n/a1.1%
October 202510.0%n/a0.0%10.0%8.7%
November 20256.3%0.0%0.0%10.0%0.8%
December 2025n/an/a0.0%n/a0.4%
January 2026n/an/a0.0%0.0%0.2%
February 2026n/a0.0%0.0%n/a0.1%
March 20260.0%0.0%0.0%n/a0.0%
April 20260.0%n/a0.0%n/a0.4%
May 20260.0%n/a0.0%n/a0.0%
June 20260.0%0.0%0.0%n/a0.0%
July 20260.2%0.0%0.0%n/a0.1%
August 20263.2%n/a0.0%n/a0.9%

Tariff actions touching this product

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 3105.40

Where it enters the US

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

  1. New Orleans, LA$273.0M · 58.0%
  2. Gramercy, LA$112.7M · 24.0%
  3. Port Manatee, FL$12.8M · 2.7%
  4. Chicago, IL$12.4M · 2.6%
  5. Oakland, CA$10.4M · 2.2%

Where US exports go

US exports were $145.3M in August 2026, up 82% from August 2025, and $1.46B over the last 12 months, up 24% on the 12 months before. Fastest-growing market with 3% or more of US exports: Argentina, up 303%.

MarketLast 12 monthsSharevs 12 months before
Canada$1.13B77.5%+8.5%
Brazil$115.6M7.9%+116%
Argentina$61.4M4.2%+303%
Australia$46.8M3.2%+162%
Colombia$25.4M1.7%−12%
South Africa$23.4M1.6%new
Mexico$21.5M1.5%+120%
Uruguay$18.7M1.3%+676%
Other countries (16)$14.9M1.0%+170%
All countries$1.46B100.0%+24%

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; 108 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Brazil$2.18Bin 2025−14%$40.4M1.9%
Canada$1.18Bin 2025−1.4%$639.7M54.4%
Australia$991.6Min 2025+7.4%$47.6M4.8%
Argentina$696.0Min 2025+45%$20.3M2.9%
South Africa$269.7Min 2025+36%$00.0%
India$176.2Min 2025+35%$46K0.0%
Paraguay$165.6Min 2025+10.0%$24.4M14.7%
Chile$117.5Min 2025+0.8%$00.0%

The biggest market outside the US is Brazil, which imported $2.18B of this product in 2025, 1.9% of that from the US.

The US supplies 54.4% of imports into Canada, but under 10% into Brazil, Australia and Argentina.

Of these, imports into Argentina grew fastest: up 45% from 2024 to 2025.

Other products under heading 3105: mineral or chemical fertilizers with two of the three fertilizer elements; fertilizers not elsewhere specified; fertilizers in packs etc. not over 10 kg gross weight. 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 (tonnes), 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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