U.S. exports of Certified Corn (Maize) Seed, Excluding Sweet Corn (HS 100510) totaled $5.2M in August 2026.
Certified Corn (Maize) Seed, Excluding Sweet Corn imports of $134K in August 2026 ran 98% below the year-to-date monthly average of $5.9M.
Last updated: August 2026 dataCertified seed corn — divided between yellow corn seed (1005100010) and other varieties (1005100090) — is a high-value agricultural input subject to USDA APHIS phytosanitary controls and, in many cases, plant variety protection or patent restrictions that govern how seed may be replanted or resold. Chile leads US import supply, followed by Canada and France, a pattern driven by counter-seasonal seed multiplication in the Southern Hemisphere and European hybrid development programs. Importers should confirm that seed lots carry both phytosanitary certification and any required variety licensing documentation.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
19 import shipments a month
Chile's Southern Hemisphere growing season allows seed companies to multiply hybrid corn seed during the Northern Hemisphere's off-season, enabling US seed producers to accelerate variety development cycles and maintain year-round supply. This counter-seasonal multiplication model makes Chile a structurally important source regardless of its domestic corn production scale.
Certified corn seed imports require a phytosanitary certificate from the exporting country and are subject to USDA APHIS inspection at the port of entry. Additionally, seed lots protected by plant variety protection certificates or utility patents may require licensing agreements with the variety owner before importation or sale. Consult a licensed customs broker or APHIS for current admissibility requirements.
Subheading 2 of 2 in heading 1005
Subheading 100510 · $5.2M of $1.7B
ImportsExports
Imports
$134KYoY · free account
Exports
$5.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $48.6M of Certified Corn (Maize) Seed, Excluding Sweet Corn and exported $354.2M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 100510 — Certified Corn (Maize) Seed, Excluding Sweet Corn, so the companies trading it can find you. Be the first supplier listed.
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 |
|---|---|---|---|---|
| 1005100090 | Corn (Maize) Seed, Other Than Yellow Corn | $82K | 0.00% | 0.00% |
| 1005100010 | Yellow Corn (Maize), Seed | $52K | 0.00% | 0.00% |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 1005100090 | Corn (Maize) Seed, Other Than Yellow Corn | $4.1M |
| 1005100010 | Yellow Corn (Maize), Seed | $1.1M |
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.
Exports · August 2026
destination
Pakistan and Chile together take 44% of it.
customs district
origin
entry
rate provision · imports
100.0% enters free of duty; duty collected equals 0.00% of imports for consumption.