TRINA SOLAR (SCHWEIZ) AG - 03 Dec 2025 Form 4 Insider Report for T1 Energy Inc. (TE)

Role: 10%+ Owner
Signature: Trina Solar (Schweiz) AG By: Vincenzo Costanzelli, Chairman of the Board of Directors
Issuer symbol: TE
Transactions as of: 03 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 30 Dec 2025, 18:25:10 UTC
Previous filing: 30 Dec 2025
Next filing: 06 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
TRINA SOLAR (SCHWEIZ) AG	10%+ Owner	BIRKENWEG 4, WALLISELLEN, SWITZERLAND	Trina Solar (Schweiz) AG By: Vincenzo Costanzelli, Chairman of the Board of Directors	30 Dec 2025	0002047012

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TE	Common Shares	Conversion of derivative security		+17,918,460	+64%		45,877,960	10 Dec 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TE	7% Unsecured Convertible Note Due in 2030	Other		+17,918,460	+144%		30,400,000	03 Dec 2025	Common Stock	30,400,000		Direct	F1
transaction	TE	7% Unsecured Convertible Note Due in 2030	Conversion of derivative security		-17,918,460	-100%		0	10 Dec 2025	Common Stock	17,918,460		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

Content

As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.