Lawsuit Accuses Major Fertilizer Companies of Price Fixing

Class-action lawsuit alleges fertilizer suppliers conspired to inflate prices paid by American farmers

Mar. 17, 2026 at 12:10am

A group of major fertilizer manufacturers, including The Mosaic Company, Nutrien Ltd., CF Industries, and Koch Agronomic Services, are facing a class-action lawsuit that accuses the companies of conspiring to drive up prices paid by American farmers. The lawsuit alleges the companies manipulated supply of essential crop nutrients like nitrogen, phosphorus, and potash, allowing them to sustain unusually high prices across the agricultural supply chain.

Why it matters

The lawsuit raises concerns about market concentration and the influence a small number of global fertilizer suppliers wield over agricultural input prices. Rising fertilizer costs have significantly strained operating budgets for many farmers, amplifying financial pressures during an already uncertain period for agriculture.

The details

According to the lawsuit filed by Union Line Farms in Hopkinton, Iowa, fertilizer prices surged sharply during global supply chain disruptions and geopolitical tensions that began in 2020. But the lawsuit argues that even after those pressures began to ease, prices remained elevated due to coordinated actions by dominant producers in the global fertilizer market. The suit alleges fertilizer costs jumped roughly 60 percent between 2021 and 2022, imposing an estimated $128,000 in additional expenses per farm in 2022 alone.

  • The lawsuit was filed last week.
  • Fertilizer prices surged sharply starting in 2020.
  • Fertilizer costs jumped roughly 60% between 2021 and 2022.

The players

The Mosaic Company

One of the world's largest fertilizer suppliers named in the lawsuit.

Nutrien Ltd.

One of the world's largest fertilizer suppliers named in the lawsuit.

CF Industries

One of the world's largest fertilizer suppliers named in the lawsuit.

Koch Agronomic Services

One of the world's largest fertilizer suppliers named in the lawsuit.

Union Line Farms

The Iowa-based farm that filed the class-action lawsuit.

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What’s next

The case could draw increased scrutiny to fertilizer markets, which have faced mounting criticism from farm groups and policymakers who say rising input costs have squeezed producers' margins in recent years.

The takeaway

This lawsuit highlights the significant financial strain that rising fertilizer costs have placed on American farmers, underscoring the need for greater transparency and competition within the highly concentrated global fertilizer market.