Mosaic Announces Agreement to Sell Mosaic Potash Carlsbad Inc to International Minerals Carlsbad, LLC
23 December 2025, Tampa: The Mosaic Company (NYSE:MOS) today announced that it has signed a definitive agreement to sell Mosaic Potash Carlsbad, Inc., including the operations, assets and liabilities of the Mosaic mine in Carlsbad, New Mexico to International Minerals Carlsbad, LLC for $30 million. The transaction includes an initial cash purchase price of $20 million, subject to customary adjustments at closing, and deferred cash consideration totaling $10 million payable in three equal annual installments beginning in 2029. Additionally, International Minerals Carlsbad, LLC will assume responsibility for the asset retirement obligations associated with the Carlsbad operations. Mosaic expects to close the transaction in the first half of 2026 and record a non-cash asset impairment in the fourth quarter of 2025.
International Minerals Carlsbad will assume Mosaic’s potash and water business in New Mexico and related intellectual property, including the K-Mag and Dynamate brands, in the sale.
“This transaction is a win for all parties,” said Mosaic Executive Vice President, Operations Karen Swager. “We are pleased that International Minerals Carlsbad will provide continuity for our Carlsbad employees at the site, and that Mosaic has taken another step to focus on core assets. Our potash production is now entirely focused on our operations in Saskatchewan, Canada which are expected to continue to generate strong returns.”
“The acquisition is an exciting business opportunity, and we look forward to building upon the 100+ year legacy of the potash industry in New Mexico,” said International Minerals Carlsbad CEO Sergio Saenz. Chief Commercial Offer Kelvin Feist added, “Our priority is to ensure a seamless transition of the business for employees, customers, suppliers and all stakeholders.”
Lazard Freres & Co. LLC served as financial advisor to The Mosaic Company.
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