USA Rare Earth Announces Strategic Investment in Carester SAS

Summary

On April 9, 2026, USA Rare Earth, Inc. announced a strategic investment in Carester SAS, a leader in rare earth processing and separation. The investment involves USA Rare Earth and InfraVia acquiring strategic minority stakes in Carester, aiming for each to hold approximately 12.5% equity interests. The partnership provides USA Rare Earth and its subsidiary Less Common Metals (LCM) Europe the right to purchase some of Carester's oxide output and access to Carester's engineering capabilities and IP for separation, processing, and recycling. In return, Carester will have long-term access to heavy rare earth feedstock from USA Rare Earth's Round Top deposit in Texas. The transaction is subject to customary conditions, including confirmatory due diligence and the negotiation and execution of definitive documentation.