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Mexico notified the WTO of a revised NOM-187 standard on July 28, 2023, opening a 60-day comment period. The proposal would ban genetically engineered corn in nixtamalized products for both domestic and imported goods, excluding snacks.
A ban on GE corn in nixtamalized products extends restrictions to imports and could limit US corn sales for tortilla and masa production, a bearish factor for corn export demand.
After 310 past bearish policy events, Corn moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.6% 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.