CPM is investigating allegations of price-fixing in the fertilizer market. Specifically, the leading fertilizer producers, including Mosaic Co., Nutrien Ltd., CF Industries Holdings Inc., Koch Inc., and Norway’s Yara International ASA, have allegedly been conspiring to raise prices of phosphate, potash, and nitrogen-based fertilizers. These practices may have caused farmers and other purchasers of fertilizers to pay more for fertilizers than they would have in the absence of a price-fixing conspiracy.
Allegations Under Investigation
Mosaic is the top fertilizer producer in the United States and produces nearly 50 percent of phosphate-based fertilizers in the United States. Mosaic and Nutrien together control approximately 90 percent of the production capacity of both phosphate and potash fertilizers. Nutrien, CF Industries, Koch and Yara collectively control approximately 82 percent of nitrogen-based fertilizers. Farmers and government officials are concerned about the market concentration in the fertilizer market. Although fertilizer prices have eased since last fall, prices remain historically elevated. Higher fertilizer costs have strained American farmers struggling with low crop prices and shrinking markets.
On March 4, 2026, news sources reported that the Chicago office of the Antitrust Division of the United States Department of Justice is investigating these companies’ pricing practices in the fertilizer market.
CPM’s investigation centers on claims that Mosaic, Nutrien, CF Industries, Koch, and Yara colluded to raise the prices for phosphate, potash, and nitrogen-based fertilizers sold in the United States from January 1, 2021 to the present. Our investigation seeks to uncover the full scope of the alleged conduct and its economic impact on farmers and agricultural producers as well as other purchasers of fertilizers, such as cooperatives and commercial landscapers.
Seeking Farmers and Other Purchasers of Fertilizers
CPM is seeking farmers and other purchasers of fertilizers who purchased phosphate, potash, and/or nitrogen-based fertilizers produced by Mosaic, Nutrien, CF Industries, Koch, and/or Yara between January 1, 2021 and the present. It is important to note that you are only required to have purchased one type of fertilizer from one of these companies to be a class representative (for example, you qualify if you purchased a nitrogen-based fertilizer manufactured by Mosaic). These individuals would help CPM pursue a class action on behalf of affected farmers and other purchasers of fertilizers in federal court.
If you are interested in representing the class, please complete the form below. We welcome the opportunity to discuss your potential participation and recovery.
