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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13D/A 0001140361-24-050502 0002047012 XXXXXXXX LIVE 3 Common Stock, par value $0.01 12/30/2025 false 0001992243 35834F104 T1 Energy Inc. 1211 E. 4th Street Austin TX 78702 Catherine Pan-Giordano Esq. (212) 415-9200 51 W. 52nd Street New York NY 10019 Anthony Epps Esq. (303) 352-1109 1400 Wewatta Street Denver CO 80202 0002047012 N Trina Solar (Schweiz) AG OO V8 48877960 0 48877960 0 48877960 N 18.4 CO ITEM 13 Calculated based on 266,190,963 shares of common stock of the Issuer outstanding as of December 30, 2025 (inclusive of the shares issued to the Reporting Person). Common Stock, par value $0.01 T1 Energy Inc. 1211 E. 4th Street Austin TX 78702 Trina Solar (Schweiz) AG ("Reporting Person") Birkenweg 4 Wallisellen, Switzerland 8304 The Reporting Person is engaged in the business of investment. N/A - None N/A - None Switzerland As reported on the Issuer's Form 8-k filed with the Securities and Exchange Commission on December 30, 2025, the Issuer, Reporting Person, and other parties named therein entered into a certain letter agreement dated December 29, 2025 (the "Letter Agreement"), pursuant to which the Issuer issued 3,000,000 shares of common stock to the Reporting Person on December 30, 2025, in connection with a debt settlement. The issuance serves as partial consideration for (i) the full discharge of the Issuer's obligations under that certain $150.0 million 1% per annum senior unsecured note due 2029 and (ii) the partial satisfaction of a Production Reservation Fee owed by the Issuer and certain of its affiliates to an affiliate of the Reporting Person under the Transaction Agreement dated November 6, 2024. Item 4 of the Schedule 13D filed by the Reporting Person on December 27, 2024 (the "Schedule 13D"), as amended, is incorporated by reference herein. On December 29, 2025, the Reporting Person entered into an Amended and Restated Cooperation Agreement with the Issuer, removing the Reporting Person's ability to appoint two directors to the Issuer's board of directors. On December 30, 2025, the Issuer issued 3,000,000 shares of common stock to the Reporting Person as settlement of a debt. 18.4% 48,877,960 See Item 3 and Item 4 N/A N/A Amended and Restated Cooperation Agreement between the Reporting Person and the Issuer dated December 29, 2025 Exhibit 10.1 incorporated by reference to Exhibit 10.1 to the Issuer's 8-k filed with the Securities and Exchange Commission on December 30, 2025 - Amended and Restated Cooperation Agreement dated December 29, 2025 Trina Solar (Schweiz) AG /a/ Vincenzo Costanzelli Chairman of Board of Directors 01/06/2025