SCHEDULE 13D/A 0001193805-24-000548 0001541901 XXXXXXXX LIVE 4 Common Stock, par value $0.01 per share 10/23/2025 true 0001992243 35834F104 T1 Energy Inc.

1211 E 4TH ST. AUSTIN TX 78702

Todd J. Kantor 646-351-8450 Encompass Capital Advisors LLC 200 Park Avenue, 16th Floor New York NY 10166 0001541901 N Encompass Capital Advisors LLC OO N DE 0.00 44720694.00 0.00 44720694.00 44720694.00 N 19.99 IA OO Includes (a) 13,463,268 shares of the Issuer's common stock, par value $0.01 per share ("Common Stock"), (b) 355,465 warrants, which are exercisable into shares of Common Stock and (c) 30,901,961 shares of Common Stock issuable upon conversion of the Issuer's Convertible Series A Preferred Stock, subject to a beneficial ownership limitation of 19.99% of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock issuable upon conversion of the Convertible Series A Preferred Stock (the "19.99% Blocker"). Conversion of the Convertible Series A Preferred Stock is subject to the 19.99% Blocker and the aggregate amount set forth on row (11) gives effect to the 19.99% Blocker. Y Encompass Capital Partners LLC OO N DE 0.00 35890919.00 0.00 35890919.00 35890919.00 N 16.50 OO Includes (a) 9,247,785 shares of Common Stock, (b) 351,931 warrants, which are exercisable into shares of Common Stock, and (c) 26,291,203 shares of Common Stock issuable upon conversion of the Issuer's Convertible Series A Preferred Stock, subject to the 19.99% Blocker. 0002021082 N Kantor Todd J. AF N X1 0.00 44720694.00 0.00 44720694.00 44720694.00 N 19.99 IN HC Includes (a) 13,463,268 shares of Common Stock, (b) 355,465 warrants, which are exercisable into shares of Common Stock and (c) 30,901,961 shares of Common Stock issuable upon conversion of the Issuer's Convertible Series A Preferred Stock, subject to the 19.99% Blocker. Mr. Kantor is the managing member of each of Encompass Capital Advisors LLC and Encompass Capital Partners LLC. Mr. Kantor disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein. Conversion of the Convertible Series A Preferred Stock is subject to the 19.99% Blocker and the aggregate amount set forth on row (11) gives effect to the 19.99% Blocker. Common Stock, par value $0.01 per share T1 Energy Inc. 1211 E 4TH ST. AUSTIN TX 78702 The following constitutes Amendment No. 4 to the Schedule 13D filed by the undersigned ("Amendment No. 4"). This Amendment No. 4 amends the Schedule 13D as specifically set forth herein. Item 5(a) is hereby amended and restated to read as follows: The aggregate percentage of Shares reported owned by the Reporting Persons is based upon (a) 190,855,046 shares of Common Stock outstanding, which is the total number of Shares outstanding as of October 24, 2025, as reported in the Issuer's Prospectus Supplement to the Registration Statement on Form S-3 (Registration No. 333-290198) filed with the Securities and Exchange Commission on October 24, 2025 and (b) shares of Common Stock issuable upon the exercise of warrants and conversion of Preferred Shares held by the respective Reporting Persons. The ownership of each Reporting Person in this Item 5 includes the Shares issuable upon the exercise of warrants and conversion of Preferred Shares that are exercisable or convertible, as applicable, within 60 days. Each Reporting Person may be deemed to be a member of a "group" with the other Reporting Persons for the purposes of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended, and, accordingly, may be deemed the beneficial owner of the Shares directly owned by the other Reporting Persons. However, each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein. A. ECA Amount beneficially owned: 44,720,694 Shares Percentage: Approximately 19.99% B. ECP Amount beneficially owned: 35,890,919 Shares Percentage: Approximately 16.50% C. Mr. Kantor Amount beneficially owned: 44,720,694 Shares Percentage: Approximately 19.99% Encompass Capital Advisors LLC /s/ Todd J. Kantor 10/27/2025 Encompass Capital Partners LLC /s/ Todd J. Kantor 10/27/2025 Kantor Todd J. /s/ Todd J. Kantor 10/27/2025