Company: YDDL
Filing Date: 2025-10-28
Form Type: 6-K
Source: 0001213900-25-103122
Chunk: 0

Company: One & one Green Technologies. INC
Filing Date: 2025-10-28
Form: 6-K
Chunk 0
---
<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

Commission File Number: 001-42898

One and one Green Technologies. INC

(Translation of registrant’s name into English)

1 st Diliman
San Rafael Bulacan, Philippines, 3008

(Address of principal executive office)</div>

Indicate by check mark whether the registrant
files or will file annual reports under cover of Form 20-F or Form 40-F.

<div align='center'>Form 20-F ☒ Form
40-F ☐</div>

On October 8, 2025, One and one Green Technologies.
INC, a Cayman Islands company (the “Company”), entered into an underwriting agreement with Cathay Securities, Inc (the “Representative”),
the representative of the underwriters named therein (the “Underwriters”), pursuant to which the Company agreed to sell to
the Underwriters in a firm commitment underwritten initial public offering (the “IPO”) an aggregate of 2,000,000 Class A ordinary
shares, of par value $0.0001 (the “Class A Ordinary Shares”), at an offering price of $5.00 per share. The Company has also
granted the Underwriters a 30-day option (the “Over-Allotment Option”), exercisable by the Representative, to purchase up
to an additional 300,000 Class A Ordinary Shares to cover over-allotments, if any.

On October 24, 2025, the Representative exercised
its Over-Allotment Option to purchase an additional 300,000 Class A Ordinary Shares of the Company at the public offering price of US$5.00
per share. The closing for the sale of the Over-Allotment Option took place on October 28, 2025. As a result, the gross proceeds of the
Company’s initial public offering, including the proceeds from the exercise of the Over-Allotment Option, totaled approximately
US$11.5 million, before deducting underwriting discounts and other related expenses.

A copy of the press release announcing the Representative’s
exercise of the Over-Allotment