# EDGAR Filing Document

**Accession Number:** 0002139242
**File Stem:** 0001140361-26-025066
**Filing Date:** 2026-6
**Character Count:** 9541
**Document Hash:** e8d1b236bc9f376d7d9ad978e8a8353d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-025066.hdr.sgml**: 20260612

**ACCESSION NUMBER**: 0001140361-26-025066

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260612

**DATE AS OF CHANGE**: 20260612

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Factorial Energy Inc.
- **CENTRAL INDEX KEY:** 0002049662
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95000
- **FILM NUMBER:** 261086885

**BUSINESS ADDRESS:**
- **STREET 1:** 805 MIDDLESEX TURNPIKE
- **CITY:** BILLERICA
- **STATE:** MA
- **ZIP:** 01821
- **BUSINESS PHONE:** 617-315-9733

**MAIL ADDRESS:**
- **STREET 1:** 805 MIDDLESEX TURNPIKE
- **CITY:** BILLERICA
- **STATE:** MA
- **ZIP:** 01821

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Cartesian Growth Corp III
- **DATE OF NAME CHANGE:** 20241220
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mercedes-Benz Corporate Investments LLC
- **CENTRAL INDEX KEY:** 0002139242

**ORGANIZATION NAME:**
- **EIN:** 475496209
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**BUSINESS ADDRESS:**
- **STREET 1:** 35555 W. TWELVE MILE RD.
- **STREET 2:** SUITE 100
- **CITY:** FARMINGTON HILLS
- **STATE:** MI
- **ZIP:** 48331
- **BUSINESS PHONE:** 800 654-6222

**MAIL ADDRESS:**
- **STREET 1:** 35555 W. TWELVE MILE RD.
- **STREET 2:** SUITE 100
- **CITY:** FARMINGTON HILLS
- **STATE:** MI
- **ZIP:** 48331

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Factorial Energy Inc.**

*(Name of Issuer)*

**Series A Common Stock, par value $0.00001 per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Steven C. Poling, Esq.**<br>35555 W. Twelve Mile Rd.<br>Suite 100<br>Farmington Hills MI 48331<br>(248) 991-6632

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

**06/05/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Mercedes-Benz Corporate Investments LLC** | Name of reporting person<br>**Mercedes-Benz Corporate Investments LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**8669995.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**8669995.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**8669995.00** | Aggregate amount beneficially owned by each reporting person<br>**8669995.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.1%** | Percent of class represented by amount in Row (11)<br>**8.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** 1. This percentage is based on a total of 107,023,245 shares of Series A Common Stock issued and outstanding as of June 5, 2026 upon completion of the Business Combination , as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of all 15,512,744 shares of Series B Common Stock (each of which is exchangeable for one share of Series A Common Stock).

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Series A Common Stock, par value $0.00001 per share

**(b) Name of Issuer:**
Factorial Energy Inc.

**(c) Address of Issuer's Principal Executive Offices:**
805 Middlesex Turnpike, Billerica, MA, 01821

This statement on Schedule 13D relates to MBCI's (as defined in Item 2 below) beneficial ownership interest in shares of Series A Common Stock, par value $0.000001 per share (the "Series A Common Stock") of Factorial Energy Inc. (f/k/a Cartesian Growth Corporation III) (the "Issuer").  The Issuer's principal executive offices are located at 805 Middlesex Turnpike, Billerica, MA 01821.

**Item 4. Purpose of Transaction**

The disclosure in Item 3 of this Schedule 13D is incorporated by reference into this Item 4.

MBCI holds its securities of the Issuer for investment purposes.  In connection with the completion of the Business Combination, Uwe Keller, Director of Battery Development at Mercedes-Benz Group AG, who was previously a director of Factorial, was elected to the board of the Issuer.

MBCI expects to review from time to time its investment in the Issuer and may, depending on the market and other conditions and subject to applicable law: (i) acquire beneficial ownership of additional securities of the Issuer in the open market, in privately negotiated transactions or otherwise; (ii) dispose of all or part of its holdings of securities of the Issuer; or (iii) take other actions which could involve one or more of the types of transactions or have one or more of the results described in Item 4 of Schedule 13D.

Except as set forth herein, MBCI does not have any plans or proposals which relate to, or could result in, any of the matters referred to in paragraphs (a) through (j), inclusive, of the instructions to Item 4 of Schedule 13D. MBCI may, at any time and from time to time, review or reconsider its position and/or change its purpose and/or formulate plans or proposals with respect thereto.

**Item 5. Interest in Securities of the Issuer**

**(a)**
As of the date hereof, MBCI directly holds 8,669,995 shares of Series A Common Stock, which represents approximately 8.1% of the Series A Common Stock issued and outstanding as of June 5, 2026 upon completion of the Business Combination, and assumes the exchange of all 15,512,744 shares of Series B Common Stock, par value $0.000001 per share (the "Series B Common Stock") (each of which is exchangeable for one share of Series A Common Stock).

**(b)**
See Item 5(a) above.

**(c)**
See Item 4 above.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Amended and Restated Registration Rights Agreement

In connection with the completion of the Business Combination, MBCI entered into an Amended and Restated Registration Rights Agreement (the "Registration Rights Agreement") with the Issuer, CGC III Sponsor LLC, a Delaware limited liability company, and certain other holders of shares of Series A Common Stock party thereto, pursuant to which MBCI is entitled to registration rights with respect to its shares of Series A Common Stock as described below.

The Registration Rights Agreement provides that, within 30 calendar days following the Closing, the Issuer will file with the SEC (at the Issuer's sole cost and expense) a resale registration statement registering the resale of certain shares of Series A Common Stock held by or issuable to the parties thereto, and will use its commercially reasonable efforts to have the resale registration statement declared effective as soon as reasonably practicable after the filing thereof. The holders (including MBCI) are also entitled to customary piggyback registration rights and demand registration rights, including underwritten demands.

The Registration Rights Agreement also includes customary indemnification provisions under which the Issuer is obligated to indemnify holders of registrable securities in the event of material misstatements or omissions in an applicable registration statement, and holders of registrable securities are obligated to indemnify the Issuer for material misstatements or omissions attributable to them.

Except as otherwise set forth in this Schedule 13D, there are no contracts, arrangements, understandings or relationships between MBCI and any other person with respect to any securities of the Issuer.

### 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.

**Reporting Person:** Mercedes-Benz Corporate Investments LLC

**Signature:** /s/ Holly Wu

**Name/Title:** Holly Wu, Vice President, Mergers & Acquisitions

**Date:** 06/12/2026