Company: QSEA
Filing Date: 2025-03-11
Form Type: S-1/A
Source: 0001829126-25-001676
Chunk: 0

Company: Quartzsea Acquisition Corp
Filing Date: 2025-03-11
Form: S-1/A
Chunk 0
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<div align='center'>As filed with the Securities
and Exchange Commission on March 10, 2025.</div>

Registration No. 333-285152

<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-1

Amendment No. 1

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

QUARTZSEA ACQUISITION CORPORATION

(Exact name of registrant as specified in its charter)</div>

| Cayman Islands                  |     |                         6770 |     | N/A                   |
| (State or Other Jurisdiction of 
 Incorporation or Organization)  |     | -Primary Standard Industrial 
   Classification Code Number |     | -I.R.S. Employer      
 Identification Number |

<div align='center'>1185 Avenue of the Americas, Suite 304

New York, NY 10036

Telephone: (212) 612-1400

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Qi Gong

1185 Avenue of the Americas, Suite 304

New York, NY 10036

Telephone: (212) 612-1400

(Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent for Service)

Copies to:</div>

| Cassi Olson, Esq.             
 Nicholas Torres, Esq.         
 Celine and Partners, P.L.L.C. 
 1345 6th Ave., 33rd Floor     
 New York, NY 10105            
 Telephone: (212) 612-1400     
 (718) 463-2555 — Facsimile    |     | Douglas C. Lionberger       
 James R. Brown              
 Holland & Knight LLP        
 811 Main Street, Suite 2500 
 Houston, Texas 77002        
 Tel: (713) 244-8221         |

Approximate date of commencement of proposed sale to the public:As soon as practicable after the effective date of this registration statement.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, as amended (the “Securities Act”), check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please