Company: RAIN
Filing Date: 2025-02-11
Form Type: S-1/A
Source: 0001213900-25-012215
Chunk: 1

Company: Rain Enhancement Technologies Holdco, Inc.
Filing Date: 2025-02-11
Form: S-1/A
Chunk 1
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 a post-effective amendment filed
pursuant to Rule 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.☐

<div align='center'>Rule 429 Statement</div>

Pursuant to Rule 429 under the Securities Act, the prospectus contained in this Registration Statement on Form S-1 (referred to herein as the Registration Statement) will be used as a combined prospectus in connection with this Registration Statement and the registrant’s Registration Statement on Form S-4 (File No. 333-283425), that was originally declared effective by the Securities and Exchange Commission on December 10, 2024 (as amended, the “Prior Registration Statement”). Accordingly, this Registration Statement also constitutes Post-Effective Amendment No. 1 on Form S-4 to the Prior Registration Statement. Such Post-Effective Amendment will become effective concurrently with the effectiveness of this Registration Statement in accordance with Section 8(c) of the Securities Act.

The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance