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

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Corn (maize) seed, certified, excluding sweet corn

In short

  • The US imported $48.6M of this product over the 12 months to August 2026, down 38% on the year before.
  • Canada is the largest supplier, with 49.2% of US imports; Mexico is next, with 26.9%.
  • Canada is the cheapest main supplier before and after freight and duty, landing at $0.53/kg.
  • Duty paid averaged 0.0% of the value of imports in August 2026, down 1.5 points on a year earlier.
  • Chile is gaining share: 62.9% over the last 12 months, up from 38.8%.
  • US exports were $354.2M over the last 12 months; the largest market is Canada, with 58.8%.

US imports, Aug 2026

$134K

↓ −92% vs Aug 2025

Last 12 months

$48.6M

↓ −38% vs the 12 months before

Average duty paid

0.0%

↓ −1.5 pts vs Aug 2025

Top supplier

Canada

49.2% 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 ↓Duty ↑
Show the numbers
MonthUS imports
August 2025$1.7M
September 2025$170K
October 2025$85K
November 2025$345K
December 2025$812K
January 2026$927K
February 2026$7.1M
March 2026$11.7M
April 2026$17.7M
May 2026$6.3M
June 2026$2.9M
July 2026$564K
August 2026$134K

What changed

  • US imports were $134K in August 2026, down 76% from July 2026 and down 92% from August 2025.
  • Over the 12 months to August 2026 they totalled $48.6M, down 38% on the 12 months before.
  • Biggest moves in market share since July 2026: Canada up from 8.2% to 49.2%, Chile down from 85.3% to 0.0%.
  • Average price from Mexico fell 62% since July 2026, to $4.26/kg.
  • Duty paid by the main suppliers held within 2 points of July 2026.

US trade by year

US imports were $48.6M in the 12 months to Aug 2026, down 74% on the 12 months to Aug 2017. US exports were $354.2M, up 14%. 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$186.9M
12 months to Aug 2018$162.1M
12 months to Aug 2019$123.4M
12 months to Aug 2020$158.6M
12 months to Aug 2021$119.9M
12 months to Aug 2022$145.6M
12 months to Aug 2023$121.9M
12 months to Aug 2024$94.8M
12 months to Aug 2025$78.4M
12 months to Aug 2026$48.6M
  • Chile
  • Canada
  • France
  • Argentina
  • All countries
Share of US imports
Show the numbers
PeriodChileCanadaFranceArgentina
12 months to Aug 201740.2%22.3%1.1%18.2%
12 months to Aug 201842.7%27.0%7.2%14.8%
12 months to Aug 201949.2%18.8%4.5%9.0%
12 months to Aug 202041.7%29.2%3.5%17.1%
12 months to Aug 202144.4%32.3%3.5%14.9%
12 months to Aug 202235.2%49.8%3.0%6.3%
12 months to Aug 202339.8%48.5%3.0%4.7%
12 months to Aug 202448.3%33.4%5.6%10.2%
12 months to Aug 202538.8%42.1%7.8%7.2%
12 months to Aug 202662.9%15.7%13.2%5.0%
Duty paid, % of value
Show the numbers
PeriodChileCanadaFranceArgentinaAll countries
12 months to Aug 20170.0%0.0%0.0%0.0%0.0%
12 months to Aug 20180.0%0.0%0.0%0.0%0.0%
12 months to Aug 20190.0%0.0%0.0%0.0%0.0%
12 months to Aug 20200.0%0.0%0.0%0.0%0.0%
12 months to Aug 20210.0%0.0%0.0%0.0%0.0%
12 months to Aug 20220.0%0.0%0.0%0.0%0.0%
12 months to Aug 20230.0%0.0%0.0%0.0%0.0%
12 months to Aug 20240.0%0.0%0.0%0.0%0.0%
12 months to Aug 20254.6%0.1%1.6%7.3%2.6%
12 months to Aug 20269.2%0.1%12.8%8.7%8.2%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$48.6M−38%8.2%+5.6 pts$354.2M+22%
12 months to Aug 2025$78.4M−17%2.6%+2.6 pts$290.6M−17%
12 months to Aug 2024$94.8M−22%0.0%0.0 pts$348.4M−1.1%
12 months to Aug 2023$121.9M−16%0.0%0.0 pts$352.3M+36%
12 months to Aug 2022$145.6M+21%0.0%0.0 pts$258.1M+0.7%
12 months to Aug 2021$119.9M−24%0.0%0.0 pts$256.4M−9.9%
12 months to Aug 2020$158.6M+29%0.0%0.0 pts$284.5M−8.6%
12 months to Aug 2019$123.4M−24%0.0%0.0 pts$311.4M−6.3%
12 months to Aug 2018$162.1M−13%0.0%0.0 pts$332.2M+7.0%
12 months to Aug 2017$186.9M0.0%$310.3M

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
Canada$66K49.2%−36.1 pts$0.32/kg−95%0.0%0.0 pts
Mexico$36K26.9%new$4.26/kg0.0%
France$27K19.8%new$31.50/kg0.0%
Austria$3K2.3%new$31.50/kg0.0%
Ghana$2K1.7%+1.3 pts$0.85/kg−53%0.0%−11.8 pts
All countries$134K100.0%$0.61/kg−89%0.0%−1.5 pts

The 3 largest suppliers had 91.8% 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
Canada$0.52/kg$0.01/kg2.4% of price$0.00/kg0.0% of price$0.53/kg−87%
Argentina$3.21/kg$0.31/kg9.5% of price$0.32/kg10.0% of price$3.84/kg−59%
Chile$5.91/kg$0.19/kg3.3% of price$0.59/kg10.0% of price$6.69/kg+63%
All countries$3.07/kg$0.13/kg4.3% of price$0.27/kg9.0% of price$3.47/kg−32%

Landed at a US port, Canada was cheapest, at $0.53/kg: 86.2% below Argentina.

Landed cost from Canada fell 87% on a year earlier, to $0.53/kg, mostly on price: $4.08/kg then, $0.52/kg now.

How the market is shifting

Chile gained the most share: 62.9% of US imports over the last 12 months, up from 38.8% in the 12 months before. Canada lost the most: 15.7%, down from 42.1%. 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.

  • Chile
  • Canada
  • France
  • Argentina
  • All countries
Share of US imports
Show the numbers
MonthChileCanadaFranceArgentina
September 20241.7%94.3%2.6%0.0%
October 20240.1%97.0%0.0%0.0%
November 20246.4%93.5%0.0%0.0%
December 20240.7%52.6%0.0%0.0%
January 20250.9%58.9%14.6%14.1%
February 20258.7%73.0%15.8%0.0%
March 202541.6%47.6%9.0%0.4%
April 202568.2%6.6%10.9%10.3%
May 202583.1%1.2%4.9%9.2%
June 202555.4%7.2%0.0%36.9%
July 20258.1%18.9%36.6%34.5%
August 20253.9%85.3%0.0%10.3%
September 20250.0%94.1%0.0%0.0%
October 20252.9%27.4%0.0%0.0%
November 202534.1%65.9%0.0%0.0%
December 202510.9%78.7%0.0%0.0%
January 20260.3%91.7%1.3%0.0%
February 20266.0%24.2%62.2%0.4%
March 202652.2%23.3%10.0%9.9%
April 202688.6%2.6%4.1%3.4%
May 202686.7%8.6%1.3%2.8%
June 202678.2%5.8%0.0%15.9%
July 202685.3%8.2%0.0%2.5%
August 20260.0%49.2%19.8%0.0%
Duty paid, % of value
Show the numbers
MonthChileCanadaFranceArgentinaAll countries
September 20240.0%0.0%0.0%n/a0.0%
October 20240.0%0.0%n/an/a0.0%
November 20240.0%0.0%n/an/a0.0%
December 20240.0%0.0%n/an/a0.0%
January 20250.0%0.0%0.0%0.0%0.0%
February 20250.0%0.0%0.0%0.0%0.0%
March 20250.0%0.0%0.0%0.0%0.1%
April 20253.9%1.4%1.1%10.0%4.1%
May 20259.5%2.6%10.0%0.2%8.6%
June 202510.0%0.0%n/a10.0%9.3%
July 202510.0%0.0%10.0%10.0%8.0%
August 202510.0%0.0%n/a10.0%1.5%
September 2025n/a0.0%n/an/a0.8%
October 202510.0%3.3%n/an/a7.9%
November 202510.0%0.0%n/an/a3.4%
December 202510.0%0.0%n/an/a1.8%
January 202610.0%0.0%12.9%n/a0.3%
February 20266.3%0.0%14.2%10.0%10.1%
March 202610.0%0.2%10.0%7.3%7.0%
April 20268.6%0.2%10.0%10.0%8.5%
May 202610.0%0.1%10.0%10.0%9.1%
June 202610.0%0.0%n/a10.0%9.4%
July 202610.0%0.0%n/a10.0%8.8%
August 2026n/a0.0%0.0%n/a0.0%

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: all countries 1.8% → 8.8%.
  2. September 2025 · Duty paid: all countries 8.3% → 1.8%.
  3. April 2025 · Duty paid: France 0.0% → 10.0%, all countries 0.0% → 8.3%.

Where it enters the US

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

  1. Philadelphia, PA$19.9M · 41.0%
  2. Miami International Airport, FL$18.6M · 38.2%
  3. Detroit, MI$4.6M · 9.4%
  4. Port Huron, MI$2.4M · 5.0%
  5. Newark, NJ$608K · 1.3%

Where US exports go

US exports were $5.2M in August 2026, down 27% from August 2025, and $354.2M over the last 12 months, up 22% on the 12 months before. Fastest-growing market with 3% or more of US exports: South Africa, up 100%.

MarketLast 12 monthsSharevs 12 months before
Canada$208.4M58.8%+31%
Pakistan$53.1M15.0%+91%
Mexico$46.1M13.0%−22%
South Africa$24.0M6.8%+100%
Malaysia$3.4M0.9%+0.2%
Netherlands$3.0M0.9%−0.3%
Turkey$2.4M0.7%−52%
Argentina$2.0M0.6%−11%
Other countries (39)$11.8M3.3%−33%
All countries$354.2M100.0%+22%

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; 118 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Germany$342.4Min 2025−6.2%$97K0.0%
France$221.4Min 2025−13%$158K0.1%
Italy$211.4Min 2025+39%$77K0.0%
Poland$211.2Min 2025−0.2%$200K0.1%
Malaysia$206.6Min 2025−49%$5.9M2.9%
Hungary$160.8Min 2025+1.1%$877K0.5%
Canada$146.9Min 2025−14%$145.8M99.2%
Romania$145.6Min 2025−5.5%$160.0%

The biggest market outside the US is Germany, which imported $342.4M of this product in 2025, under 0.1% of it from the US.

The US supplies 99.2% of imports into Canada, but under 10% into Germany, France and Italy.

Of these, imports into Italy grew fastest: up 39% from 2024 to 2025.

Other products under heading 1005: corn (maize). US trade over the 12 months to August 2026.

ProductUS importsUS exports
Corn (maize), other than seed cornHS 1005.90$215.6M$19.50B
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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