X0508 4 2025-12-19 0 0001970622 USA Rare Earth, Inc. USAR 0002059114 Kronenfeld David Thomas 100 W AIRPORT ROAD STILLWATER OK 74075 0 1 0 0 Chief Legal Officer 0 Restricted Stock Units 0 2025-12-19 4 A 0 11095 0 A Common Stock, par value $0.0001 per share 11095 11095 D Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock. The restricted stock unit ("RSU") will vest in three equal tranches. 33 1/3% of the RSU will vest on December 1, 2026, December 1, 2027, and December 1, 2028, respectively. If the vesting date occurs during a closed Trading Window under the Issuer's Insider Trading Policy, then the RSUs shall vest on the first Trading Day of the next open Trading Window pursuant to the Issuer's Insider Trading Policy, subject in all cases to any applicable outside dates required to comply with applicable tax laws and the terms of the Issuer's Amended and Restated 2024 Omnibus Incentive Plan. /s/ David Kronenfeld 2025-12-22