
Farm Action argues Mexico's ban on US genetically modified corn could open a niche market for non-GM American corn, with premiums of up to 50 cents per bushel, or 75 cents in Iowa. Mexico imported about $18.7 billion of US corn, roughly 40% of US corn exports, according to USDA data cited.
Mexico's roughly 40% share of US corn exports makes its GM policy a major demand factor, and a shift toward non-GM corn could reshape US export flows. The article is advocacy commentary and does not announce a policy change.
After 439 past neutral policy events, Corn moved a median +0.1% over 5 sessions (51% higher; middle half -1.3% to +1.2%), and +1.1% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.