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SITCSection 0
U.S. imports of maize (corn) seed (SITC 04410) totaled $17.7M in April 2026, traded with 15 countries.
Importers of Maize (Corn) Seed paid $1.5M in duties in April 2026 — an effective duty rate of 8.7% on $17.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Maize (Corn) Seed imports of $17.7M in April 2026 ran 89% above the year-to-date monthly average of $9.3M.
Last updated: April 2026 dataSeed corn — maize intended for planting rather than processing or feed — is regulated at the US border by both USDA APHIS under plant quarantine authority and the Federal Seed Act, which mandates labeling, germination testing, and variety certification. Hybrid seed varieties are often proprietary, and import transactions frequently involve intellectual property licensing agreements alongside the customs entry. Because seed corn must maintain viability, cold-chain integrity and fumigation restrictions are more stringent than for commodity grain corn.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
USDA APHIS requires a phytosanitary certificate from the exporting country's national plant protection organization, and certain origins or seed types may require an APHIS import permit. The Federal Seed Act additionally requires that seed lots be labeled with germination percentage, purity, and variety name. Importers should confirm permit requirements with APHIS well in advance of shipment. Classification and admissibility are complex; consult a licensed customs broker or APHIS before importing.
Seed corn classifies separately from feed or processing corn because it is specifically prepared and certified for planting. The distinction rests on the importer's declared end use and accompanying seed certification documents. Misclassifying commodity corn as seed corn — or vice versa — can result in penalty and seizure, so documentation must clearly establish the planting-grade status of the shipment.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHILE | $15.6M | -- | -$15.6M |
| CANADA | $468K | $14.2M | +$13.8M |
| SOUTH AFRICA | -- | $5.7M | +$5.7M |
| MEXICO | $39K | $1.1M | +$1.1M |
| FRANCE | $732K | -- | -$732K |
Monthly import values over time
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