# Mexico Celebrates Maize, Resistance to GM Corn - Organic Consumers

> Mexico marked National Maize Day on September 28, 2025, and the 12-year anniversary of a court ruling that halted experimental GM corn planting. The article recounts the class-action case that led to the later constitutional ban on GM corn cultivation.

- Date: 2025-09-28 · published 2025-09-28T12:00:00.000Z
- Category: policy · region Mexico · magnitude low
- Page: https://feedsoft.ai/events/22829-mexico-celebrates-maize-resistance-to-gm-corn-organic-consumers
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Mexico's constitutional ban on GM corn cultivation keeps the GM trade dispute in place and limits biotech corn adoption in Mexico. This has little immediate effect on prices, though the policy shapes long-run US corn export access.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2025-05-03 | [Mexico's act of resistance over GM corn - The New Lede](https://feedsoft.ai/events/24633-mexico-s-act-of-resistance-over-gm-corn-the-new-lede.md) | -2.9% | -1.6% |
| CORN | 2017-11-29 | [Organic Consumers Statement on Recent Rulings Against Monsanto in Mexico - Organic Consumers](https://feedsoft.ai/events/67970-organic-consumers-statement-on-recent-rulings-against-monsanto-in-mexico.md) | +1.6% | +7.4% |
| CORN | 2022-03-29 | [Movement to ban GMO corn imports gains support in Mexico  \|  The Organic & Non-GMO Report](https://feedsoft.ai/events/42274-movement-to-ban-gmo-corn-imports-gains-support-in-mexico-the-organic-and-non.md) | +2.7% | +4.0% |
| CORN | 2024-10-11 | [U.S. flails in GM corn dispute with Mexico - The Organic & Non-GMO Report](https://feedsoft.ai/events/27823-u-s-flails-in-gm-corn-dispute-with-mexico-the-organic-and-non-gmo-report.md) | -1.8% | +0.9% |
| CORN | 2022-01-31 | [Ban on GMO corn in Mexico farm lobby blasts; Organic farmers welcome it](https://feedsoft.ai/events/43122-ban-on-gmo-corn-in-mexico-farm-lobby-blasts-organic-farmers-welcome-it.md) | +0.6% | +6.9% |

## Sources

- organicconsumers.org: https://organicconsumers.org/mexico-celebrates-maize-resistance-to-gm-corn/

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.