DOJ probe and twin class-action suits put U.S. fertilizer producers under unprecedented legal scrutiny

The largest U.S. and international fertilizer producers now face simultaneous federal antitrust scrutiny and two private class-action lawsuits alleging they coordinated production cuts to inflate prices during the 2021 price cycle — a convergence of legal pressure the industry has not previously confronted.

The U.S. Department of Justice opened its antitrust investigation into fertilizer pricing in March 2026, examining whether major nitrogen and phosphate producers — including Mosaic, Nutrien, CF Industries, Koch Fertilizer and Yara — engaged in conduct that suppressed competition during and after the 2021 surge. The probe is criminal in nature.

Two class-action lawsuits have since been filed by farm plaintiffs, both making substantially similar allegations: that the defendants coordinated capacity discipline through public statements and market signaling, artificially narrowing supply and supporting prices above competitive levels. One was filed in March, the second in June 2026.

Together, the three proceedings expose the same companies to concurrent criminal, civil and private damages liability. Executives have been subpoenaed under the DOJ inquiry according to reports, while the class actions seek damages on behalf of farmers who purchased fertilizer at allegedly inflated prices.

The timing is politically sensitive. Fertilizer prices rose as high as $850 per tonne for urea in April 2026 as the Strait of Hormuz closure compounded supply anxiety — conditions that have amplified farmer grievances and focused legislative attention on input cost concentration. The Senate Agriculture Committee held its first fertilizer supply hearing in June 2026, where several senators signaled support for stronger antitrust enforcement in the sector.

All named companies have denied wrongdoing. The DOJ investigation remains ongoing and no charges have been filed.

Source: Farm Progress