Company: CGCT
Filing Date: 2025-06-17
Form Type: NT 10-Q
Source: 0001104659-25-060260
Chunk: 1

Company: Cartesian Growth Corp III
Filing Date: 2025-06-17
Form: NT 10-Q
Chunk 1
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 in the subject report or portion thereof?                                                                                              |     |            |     |                   |
|     |                                                                                                                                                                                                                                                                                                                                  |     |            |     | ¨ Yes x No        |
|     | If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.                                                                                                                                     |     |            |     |                   |

<div align='center'>Cartesian Growth Corporation III

(Name of Registrant as Specified in Charter)</div>

has caused this notification to be signed on its
behalf by the undersigned hereunto duly authorized.

| Date | June 17, 2025 |     | By | /s/ Rafael de Luque     |
|:-----|:--------------|:----|:---|:------------------------|
|      |               |     |    | Rafael de Luque         |
|      |               |     |    | Chief Financial Officer |

INSTRUCTION: The form may be signed by an executive
officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed
or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an
executive officer), evidence of the representative’s authority to sign on behalf of the registrant shall be filed with the form.

| ATTENTION                                                    
 Intentional misstatements or omissions of fact               
 constitute Federal Criminal Violations (See 18 U.S.C. 1001). |