The United States is the leading corn producer in the world, and Mexico is the largest and reliable export market for U.S. corn. In December 2020, Mexican President López Obrador issued a decree to phase out the use of genetically modified (GM) corn for human consumption by the end of January 2024 (Obrador, 2023; Garrison and Barrera, 2023). According to this decree, Mexico would ban GM corn imports to safeguard human health, maintain self-sufficiency and food sovereignty, preserve biodiversity and a healthy agricultural environment, and protect native corn.