In re: Nitrogen, Phosphorus, and Potassium (NPK) Fertilizer Antitrust Litigation

Berger Montague is interim co-lead counsel for a proposed class of direct purchasers of nitrogen, phosphate, and potash fertilizers (NPK Fertilizers). The case alleges that the dominant U.S. fertilizer producers conspired to fix, raise, and maintain NPK Fertilizer prices from January 2021 to the present, in violation of the Sherman Act.

Defendants include Nutrien, The Mosaic Company, CF Industries, Koch, Yara, and Canpotex, the potash export venture Nutrien and Mosaic jointly own, along with The Fertilizer Institute and the International Fertilizer Association. Plaintiffs allege the defendants control 82% of the U.S. nitrogen market and roughly 90% of the North American phosphate and potash markets. Prices surged in lockstep in 2021 and 2022, eased only partly in 2023, and climbed again from 2024, while defendants curtailed production and idled plants.

In June 2026, the Judicial Panel on Multidistrict Litigation centralized the cases in the District of Kansas before Judge Eric F. Melgren.

Berger Montague is one of the nation’s preeminent law firms focusing on complex civil litigation, class actions, and mass torts in federal and state courts throughout the United States. With more than $2.4 billion in 2025 post-trial judgments alone, the Firm is a leader in the fields of complex litigation, antitrust, consumer protection, defective products, environmental law, employment law, securities, and whistleblower cases, among many other practice areas. For over 55 years, Berger Montague has played leading roles in precedent-setting cases and has recovered over $50 billion for its clients and the classes they have represented. Berger Montague is headquartered in Philadelphia and has offices in Chicago; Malvern, PA; Minneapolis; San Diego; San Francisco; Toronto, Canada; Washington, DC; and Wilmington, DE.