Trina Solar Gains 12.52M T1 Energy Shares; Beneficial Ownership Now 16.6%

Rhea-AI Filing Summary

Trina Solar (Schweiz) AG acquired additional common stock of T1 Energy Inc. through a conversion described as the "First Conversion." The Reporting Person received 12,521,653 shares on September 5, 2025 and now beneficially owns 27,959,500 shares, representing 16.6% of T1 Energy's outstanding common stock. The filer identifies its business as investment and lists Switzerland as its place of organization. The filing references a prior Schedule 13D filed December 27, 2024 and discloses OO as the source of funds. No separate contracts or exhibits are attached to this amendment.

Positive

• Increased ownership: Reporting person now beneficially owns 27,959,500 shares
• Material stake: The position represents 16.6% of T1 Energy Inc.'s common stock
• Clear transaction detail: Received 12,521,653 shares on September 5, 2025 via the First Conversion

Negative

• No stated intent beyond conversion: The filing does not disclose strategic purpose or plans following the ownership increase
• Limited supporting documentation: No contracts, arrangements, or exhibits are filed with this amendment

Insights

Financial Analyst

TL;DR: A substantial ownership increase to 16.6% via conversion could give the reporting holder meaningful influence over T1 Energy.

The addition of 12,521,653 shares on September 5, 2025 raises the reporting person’s stake to 27,959,500 shares or 16.6% of the company, a materially large minority position that investors and management will note. The filing does not state any new strategic intent beyond the conversion, and no agreements or board changes are disclosed here. The disclosed source of funds is coded as "OO," and the filing references an earlier Schedule 13D for background. This position size is large enough to affect voting outcomes if the holder coordinates with others or seeks board representation.

Corporate Governance Expert

TL;DR: Ownership at 16.6% creates potential governance leverage, but the filing provides limited disclosure on planned governance actions.

The reporting person is identified as an investment entity organized in Switzerland. The filing documents a conversion issuance but does not attach contracts, agreements, or specify any arrangements with management. Absence of disclosures about intentions beyond ownership increases the importance of monitoring subsequent filings for nominations, voting agreements, or other governance actions. For regulators and shareholders, a 16.6% stake is notable and warrants attention to future proxy and Schedule 13 filings.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 1)

T1 Energy Inc.

(Name of Issuer)

Common Stock, par value $0.01

(Title of Class of Securities)

35834F104

(CUSIP Number)

Catherine Pan-Giordano Esq.
51 W. 52nd Street,
New York, NY, 10019
(212) 415-9200

Anthony Epps Esq.
1400 Wewatta Street,
Denver, CO, 80202
(303) 352-1109

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

09/05/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 35834F104

1

Name of reporting person

Trina Solar (Schweiz) AG

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

SWITZERLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 27,959,500.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 27,959,500.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

27,959,500.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

16.6 %

14

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, par value $0.01
(b)	Name of Issuer: T1 Energy Inc.
(c)	Address of Issuer's Principal Executive Offices: 1211 E. 4th Street, Austin, TEXAS , 78702.
Item 2.	Identity and Background
(a)	Trina Solar (Schweiz) AG ("Reporting Person")
(b)	Birkenweg 4 Wallisellen, Switzerland 8304
(c)	The Reporting Person is engaged in the business of investment.
(d)	N/A - None
(e)	N/A - None
(f)	Switzerland
Item 3.	Source and Amount of Funds or Other Consideration
	OO
Item 4.	Purpose of Transaction
	Item 4 of the Schedule 13D filed by the Reporting Person on December 27, 2024 (the "Schedule 13D"), is incorporated by reference herein. On September 5, 2025, the Reporting Person and the Issuer completed the First Conversion (as defined in the Schedule 13D), and the Reporting Person received 12,521,653 shares of common stock of the Issuer on the same date.
Item 5.	Interest in Securities of the Issuer
(a)	16.6%
(b)	27,959,500
(c)	First Conversion (as defined in the Schedule 13D) by the Reporting Person and issuance of 12,521,653 shares of common stock of the Issuer to the Reporting Person as a result of the First Conversion
(d)	N/A
(e)	N/A
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	N/A
Item 7.	Material to be Filed as Exhibits.
	N/A

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Trina Solar (Schweiz) AG

Signature:	Vincenzo Costanzelli, Chairman of Board of Directors
Name/Title:	Trina Solar (Schweiz) AG
Date:	09/09/2025

FAQ

How many T1 Energy (TE) shares does Trina Solar (Schweiz) AG beneficially own?

The filing states Trina Solar (Schweiz) AG beneficially owns 27,959,500 shares of T1 Energy common stock.

What percentage of T1 Energy (TE) does the reporting person own after the conversion?

The reporting person owns 16.6% of T1 Energy's common stock following the First Conversion.

How many shares were issued to the reporting person in the First Conversion?

The reporting person received 12,521,653 shares on September 5, 2025 as a result of the First Conversion.

Does the filing disclose any agreements or arrangements related to the acquisition?

No. The filing indicates N/A for contracts, arrangements or exhibits and does not attach agreements to this amendment.

Where is Trina Solar (Schweiz) AG organized and what is its business?

The filer is organized in Switzerland and describes its business as investment.