Company: YDDL
Filing Date: 2025-07-11
Form Type: F-1/A
Source: 0001213900-25-062908
Chunk: 180

Company: One & one Green Technologies. INC
Filing Date: 2025-07-11
Form: F-1/A
Chunk 180
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 filed by the registrant pursuant to Rule 424(b) (1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time it was declared effective; and (ii) each post -effectiveamendment that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. II-3

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form F -1and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the Philippines, on July 10, 2025.

| One and one Green Technologies. INC |     |                                                             |
| By:                                 |     | /s/ Caifen Yan                                              |
| Name:                               |     | Caifen Yan                                                  |
| Title:                              |     | Chief Executive Officer, Chairman of the Board and Director |

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

| Name              
 /s/ Caifen Yan    |     | Position                                                         
 Chief Executive Officer,                                         
 Chairman of the Board and Director (Principal Executive Officer) |     | Date          
 July 10, 2025 |
|:------------------|:----|:-----------------------------------------------------------------|:----|:--------------|
| Caifen Yan        |     |                                                                  |     |               |
| /s/ Chun Kit Wong |     | Chief Financial Officer                                          |     | July 10, 2025 |
| Chun Kit Wong     |     | -Principal Financial and Accounting Officer                      |     |               |
| /s/ Huajun Yan    |     | Chief Operating Officer and Director                             |     | July 10, 2025 |
| Huajun Yan        |     |                                                                  |     |               |

II-4

Authorized U.S. Representative Pursuant to the Securities Act of 1933, as amended, the undersigned, the duly authorized representative in the United States of One and one Green Technologies. INC, has signed this registration statement in New York, on July 10, 2025.

| Cogency Global Inc