Formalizes the Strategic Investment and Commercial Framework Between the Companies Announced in April 2026

Strengthens USA Rare Earth's Midstream Rare Earth Platform in Europe and the Integrated Industrial Ecosystem Forming in Lacq, France

Carester’s Caremag Facility to Commence Operations in Q4 2026

Provides LCM Europe and USA Rare Earth Access to Carester’s Rare Earth Oxides; Gives Carester Access to USA Rare Earth Feedstock from Serra Verde and Round Top

STILLWATER, Okla., July 23, 2026 (GLOBE NEWSWIRE) -- USA Rare Earth, Inc. (NASDAQ:USAR) (the "Company") today announced that it has entered into definitive agreements to acquire strategic minority stakes representing approximately 13.6 percent each in Carester SAS ("Carester"), a French leader in rare earth processing and separation. InfraVia, acting through its Critical Metals Fund, seeded by the French State as an anchor investor alongside private institutional capital, is acquiring a similar stake in Carester alongside USA Rare Earth.

The agreements finalize the strategic investment and commercial framework the parties announced in April 2026. In addition to targeting healthy returns, USA Rare Earth and its subsidiary Less Common Metals ("LCM") Europe will have the ability to purchase a portion of Carester’s oxide output from its Caremag facility. USA Rare Earth will have access to Carester’s engineering capabilities and related intellectual property for separation, processing, and recycling. In turn, Carester will have access to USA Rare Earth feedstock sources, including Serra Verde and the Round Top deposit in Texas.