Company: BLUWU
Filing Date: 2025-06-09
Form Type: S-1MEF
Source: 0001641172-25-014414
Chunk: 1

Company: Blue Water Acquisition Corp. III
Filing Date: 2025-06-09
Form: S-1MEF
Chunk 1
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 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| Large             
 accelerated filer | ☐ | Accelerated               
 filer                     | ☐ |
| Non-accelerated   
 filer             | ☒ | Smaller reporting company | ☒ |
|                   |   | Emerging growth company   | ☒ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

This Registration Statement shall become effective upon filing with the Securities and Exchange Commission in accordance with Rule 462(b) under the Securities Act of 1933, as amended.

<div align='center'>EXPLANATORY NOTE</div>

This Registration Statement on Form S-1 (this “Registration Statement”) is being filed by Blue Water Acquisition Corp. III, a blank check company incorporated as a Cayman Islands exempted company (the “Registrant”), pursuant to Rule 462(b) under the Securities Act of 1933, as amended, and General Instruction V to Form S-1. This Registration Statement relates to the Registrant’s Registration Statement on Form S-1, as amended (File No. 333-285075), initially filed by the Registrant on February 20, 2025 and declared effective by the Securities and Exchange Commission (the “Commission”) on June 9, 2025 (the “Prior Registration Statement”).

This Registration Statement covers the registration of an additional 2,300,000 of the Registrant’s units, each consisting of one Class A ordinary share and one-half of one redeemable warrant. Each whole warrant entitles the holder thereof to