Company: YDDL
Filing Date: 2025-10-09
Form Type: 424B4
Source: 0001213900-25-097758
Chunk: 135

Company: One & one Green Technologies. INC
Filing Date: 2025-10-09
Form: 424B4
Chunk 135
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 subject to approval of legal matters by their counsel and other conditions specified in the underwriting agreement. The Underwriters reserve the right to withdraw, cancel or modify offers to the public and to reject orders in whole or in part. Over-Allotment Option We have granted a 30 -dayoption to the representative of the Underwriters to purchase up to 300,000 additional Class A Ordinary Shares at public Offering Price of $5.00 per share, solely to cover over -allotments, if any. The Underwriters may exercise this option for 30 days after the closing of this Offering solely to cover sales of Class A Ordinary Shares by the Underwriters in excess of the total number of Class A Ordinary Shares set forth in the table above. If any of these additional shares are purchased, the Underwriters will offer the additional shares on the same terms as those on which the shares are being offered. Discount We have agreed to sell the Class A Ordinary Shares to the Underwriters at the initial offering price of US$3.65 per Class A Ordinary Share, which represents the initial public offering price of the Class A Ordinary Shares set forth on the cover page of this prospectus less a 7.0% underwriting discount. The following table shows the public offering price, total underwriting discount and proceeds, before expenses, to us. The information assumes either no exercise or full exercise by the Underwriters of their over -allotmentoption.

|                                 |     | Per Share |      |     | Total Without  
 Over-Allotment 
 Option         |            |     | Total With     
 Over-Allotment 
 Option         |            |
|:--------------------------------|:----|:----------|-----:|:----|:---------------|-----------:|:----|:---------------|-----------:|
| Offering price                  |     | $         | 5.00 |     | $              | 10,000,000 |     | $              | 11,500,000 |
| Underwriting discount (7%)      |     | $         | 0.35 |     | $              |    700,000 |     | $              |    805,000 |
| Proceeds, before expense, to us |     | $         | 3.65 |     | $              |  9,300,000 |     | $              | 10,695,000 |

92 The Underwriters propose to offer the Class A Ordinary Shares offered by us to the public at the Offering