U.S. exports of Corn (Maize), Other Than Seed Corn (HS 100590) totaled $1.7B in August 2026.
Importers of Corn (Maize), Other Than Seed Corn paid $1.4M in duties in August 2026, an average duty rate of 6.37% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Corn (Maize), Other Than Seed Corn imports of $22.0M in August 2026 ran 13% above the year-to-date monthly average of $19.5M.
Last updated: August 2026 dataNon-seed corn is graded and classified at the 10-digit level by US grade standards—Yellow Dent No. 1 (1005902020), No. 2 (1005902030), No. 3 (1005902035), and No. 4 (1005902045)—alongside certified organic (1005902015), white corn (1005904055), and unpopped popcorn (1005904040 and 1005904049), making grade documentation from the exporting country essential for accurate entry. Canada is the leading import supplier, with Argentina and Brazil providing bulk commodity volumes that compete on price and grade specification. Corn imported for food use is subject to FDA oversight, while feed-grade corn may involve USDA FGIS grade certification, and biotech event documentation is increasingly required by trading partners and domestic end-users.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
686 import shipments a month
The US HTS assigns separate 10-digit lines to Yellow Dent corn at US No. 1, No. 2, No. 3, and No. 4 grade levels, as well as a residual NESOI line for corn that does not meet any of those grades. Importers must obtain official grade certificates—typically issued by the exporting country's grain inspection authority or a USDA-recognized agency—and declare the correct grade on entry. Declaring a higher grade than the product actually meets can constitute a material misstatement.
While the US does not require mandatory GMO labeling for bulk commodity corn at import, many end-users (food processors, feed mills, and export customers) require identity-preservation documentation confirming the biotech event profile of incoming grain. Importers sourcing from Argentina or Brazil—where multiple stacked-trait varieties are common—should obtain event-specific certificates from the foreign seller to satisfy downstream customer requirements and avoid rejection at delivery.
ImportsExports
Imports
$22.0MYoY · free account
Exports
$1.7BYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $215.6M of Corn (Maize), Other Than Seed Corn and exported $19.5B.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Mexico and Japan together take 50% of it.
customs district
origin
entry
rate provision · imports
20.8% enters free of duty; duty collected equals 6.37% of imports for consumption.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 1005902015 | Cert Organic Yellow Dent Corn (Maize), Except Seed | $11.1M | 11.38% | 91.25% | $1.3M |
| 1005902025 | Yellow Dent Corn (Maize), Except Seed, NESOI | $9.3M | 0.16% | 67.16% | $15K |
| 1005904060 | Corn (Maize), NESOI | $1.2M | 7.11% | 56.53% | $88K |
| 1005904040 | Popcorn, Unpopped, Except Seed | $312K | 10.50% | 98.51% | $33K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Trade Directory
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Subheading 1 of 2 in heading 1005
Subheading 100590 · $1.7B of $1.7B