Table of Contents As filed with the Securities and Exchange Commission on January 27, 2026 Registration No. 333- UNDER THE SECURITIES ACT OF 1933 5E Advanced Materials, Inc. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 1400 87-3426517 (Primary Standard Industrial Classification Code Number) 9329 Mariposa Road, Suite 210 Hesperia, CA 92344 (442) 221-0225 (I.R.S. Employer Identification No.) (Address, including zip code, and tel ...