X0609 4 2026-09-15 false 0001888654 5E Advanced Materials, Inc. FEAM 0001911537 Weibel Paul Wesley III false 9329 MARIPOSA ROAD SUITE 210 HESPERIA CA 92344 false true false false Chief Executive Officer false Common Stock 2026-09-15 4 M false 4322.00 A 23160.00 D Common Stock 2026-09-15 4 A false 795.00 A 23955.00 D Common Stock 2026-09-15 4 F false 1839.00 1.26 D 22116.00 D Restricted Share Unit 2026-09-15 4 M false 530.00 0.00 D Common Stock 530.00 0.00 D Restricted Share Unit 2026-09-15 4 M false 383.00 0.00 D Common Stock 383.00 383.00 D Restricted Share Unit 2026-09-15 4 M false 3409.00 0.00 D Common Stock 3409.00 6818.00 D Each restricted share unit ("RSU") represents a contingent right to receive one share of 5E Advanced Materials, Inc. common stock. PSUs granted on September 15, 2023 pursuant to the Issuer's Amended and Restated 2022 Equity Compensation Plan (the "Plan"). Amount represents the vesting of PSUs. Pursuant to the determination of the Compensation Committee of the Board of Directors, the PSUs vested at 50% of the target number of shares based on achievement of the applicable performance criteria. The remaining unvested PSUs were forfeited. Each performance share unit ("PSU") represents a contingent right to receive one share of 5E Advanced Materials, Inc. common stock upon the achievement of certain service-based and performance-based conditions. Represents the number of shares of common stock withheld by the Issuer to cover the reporting person's tax withholding obligation upon the vesting of RSUs and PSUs. RSUs granted on September 15, 2023 pursuant to the Issuer's Plan. One-third vested on each of the first, second and third anniversary of the grant date. RSUs granted on September 15, 2024 pursuant to the Issuer's Plan. Approximately one-third vested on each of the first, second and third anniversary of the grant date. RSUs granted on March 1, 2026 pursuant to the Issuer's Plan. One-third vest on each of September 15 of 2026, 2027 and 2028. /s/ Paul Weibel 2026-09-15