Company: QSEA
Filing Date: 2025-02-03
Form Type: DRS/A
Source: 0001829126-25-000616
Chunk: 159

Company: Quartzsea Acquisition Corp
Filing Date: 2025-02-03
Form: DRS/A
Chunk 159
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 underwriters’ over-allotment option is exercised in full) to the initial shareholders and an immediate dilution of 106.8% per share or $9.71 (or 107.2% or $9.74 per share if the underwriters’ over-allotment option is exercised in full) to new investors not exercising their conversion/tender rights.

|                                                       |     | Without        
 Over-allotment |       |   |     | With           
 Over-allotment |       |   |
|:------------------------------------------------------|:----|:---------------|------:|:--|:----|:---------------|------:|:--|
| Public offering price                                 |     | $              |  9.09 |   |     | $              |  9.09 |   |
| Net tangible book value before this offering          |     | $              | (0.10 | ) |     | $              | (0.10 | ) |
| Decrease attributable to initial shareholders         |     | $              | (0.52 | ) |     | $              | (0.55 | ) |
| Pro forma net tangible book value after this offering |     | $              | (0.62 | ) |     | $              | (0.65 | ) |
| Dilution to public shareholders                       |     | $              |  9.71 |   |     | $              |  9.74 |   |
| Percentage of dilution to public shareholders         |     |                | 106.8 | % |     |                | 107.2 | % |

<div align='center'>94</div>

In addition, the table below shows material probable transactions or sources of dilution and the extent of such dilution that non-redeeming public shareholders could experience in connection with the closing of this offering. The table below assumes: Scenario A) 25% of the maximum number of our public shares are redeemed, Scenario B) 50% of the maximum number of our public shares are redeemed, Scenario C) 75% of maximum number of our public shares are redeemed, and Scenario D) 100% of maximum number of our public shares are redeemed.

<div align='center'>As of November 30, 2024</div>

|                                                                                             |     | Without Over-Allotment Option Exercised 
 Scenario A                              
 25% of maximum redemptions              |       |     | Scenario B                 
 50% of