SITCSection 0
U.S. imports of maize (corn) flour (SITC 04711) totaled $13.9M in April 2026, traded with 29 countries.
Importers of Maize (Corn) Flour paid $110K in duties in April 2026 — an effective duty rate of 9.9% on $1.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataCorn flour — finely milled from whole maize kernels — is a staple ingredient in tortilla production, gluten-free baking, and snack food manufacturing, distinguishing it from coarser corn meal or masa harina by its particle size and processing method. FDA food-safety requirements apply to imported corn flour, including prior notice and potential port-of-entry examination. Importers sourcing corn flour should verify whether the product is derived from conventional, non-GMO, or organic maize, as these distinctions affect labeling obligations and buyer specifications in the US market.
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Corn flour is more finely ground than corn meal and is classified under a different SITC heading than groats and meal. Masa harina is nixtamalized (alkali-treated) corn flour and may be classified differently depending on the degree of processing. Importers should provide particle-size data and processing descriptions to support accurate classification.
Yes — the USDA National Bioengineered Food Disclosure Standard (NBFDS) requires disclosure of bioengineered ingredients in food products sold in the US. Corn is a listed bioengineered crop, so importers and distributors of corn flour must assess whether the product triggers disclosure obligations and ensure compliant labeling before retail distribution.
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Monthly import values over time