Company: YDDL
Filing Date: 2025-10-09
Form Type: 424B4
Source: 0001213900-25-097758
Chunk: 51

Company: One & one Green Technologies. INC
Filing Date: 2025-10-09
Form: 424B4
Chunk 51
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 per share and our net tangible book value per share after this Offering. Dilution results from the fact that the initial public offering price per share is substantially in excess of the book value per Class A Ordinary Share attributable to the existing Shareholders for our presently outstanding Class A Ordinary Shares. Net tangible book value represents the amount of our total assets, excluding goodwill and other intangible assets, less our total liabilities. Our net tangible book value as of December31, 2024 was US$20,749,151, or US$0.496 per Class A Ordinary Share. After giving effect to the issuance and sale of 2,000,000 Class A Ordinary Shares in this Offering at the initial public offering price of US$5.00 per Class A Ordinary Share, and after deducting underwriting discounts and estimated Offering expenses payable by us, our pro forma as adjusted net tangible book value would have been $29,688,951, or US$0.678 per outstanding Class A Ordinary Share. This represents an immediate increase in net tangible book value of US$8,644,218 to existing shareholders and an immediate dilution in net tangible book value of US$0.181 per Class A Ordinary Share to investors purchasing Class A Ordinary Shares in this Offering. The following table illustrates such dilution:

|                                                                             |     | Per Class A 
 Ordinary    
 Share       |            |
| initial public offering price                                               |     | US$         |       5.00 |
| Net tangible book value                                                     |     | US$         | 20,749,151 |
| Pro forma net tangible book value after giving effect to this Offering      |     | US$         | 29,688,951 |
| Amount of dilution in net tangible book value to investors in this Offering |     | US$         |  8,644,218 |

The following table summarizes, on a pro forma as adjusted basis as of December31, 2024, the total number of Class A Ordinary Shares purchased from us, the total cash consideration paid to us, and the average price per Class A Ordinary Share paid by existing Shareholders and by new investors in this Offering. The table below reflects the initial public Offering Price of US$5.00 per Class A Ordinary Share, for Class A Ordinary Shares purchased in this Offering and excludes underwriting discounts, non -accountableexpense allowance and estimated offering expenses payable by us.

|                            |     | Class A Ordinary 
 Shares Purchased |     |      |     |     | Total Consider