Company: MLAC
Filing Date: 2025-10-07
Form Type: 425
Source: 0001213900-25-097100
Chunk: 1

Company: Mountain Lake Acquisition Corp.
Filing Date: 2025-10-07
Form: 425
Chunk 1
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 The Nasdaq Stock Market LLC       |
| Rights                                                                                                                                                                 |     | MLACR             |     | The Nasdaq Stock Market LLC       |

Indicate by check mark whether the registrant
is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the
Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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 13(a) of the Exchange Act. ☐

Item 1.01. Entry into a Material Definitive Agreement.

Business Combination Agreement

On October 1, 2025, Mountain
Lake Acquisition Corp. (“SPAC”) entered into a Business Combination Agreement (the “Business Combination Agreement”)
with Avalanche Treasury Corporation, a Delaware corporation (“Pubco”), Avalanche SPAC Merger Sub LLC, a Delaware limited
liability company (“SPAC Merger Sub”), Avalanche Company Merger Sub LLC, a Delaware limited liability company (“Company Merger Sub”, and together with SPAC Merger Sub, the “Pubco Subsidiaries”), Avalanche Treasury Company LLC,
a Delaware limited liability company (the “Company”), and Dragonfly Digital Management, LLC, a Delaware limited liability
company (the “Seller”). Capitalized terms used in this Current Report on Form 8-K but not otherwise defined herein
have the meanings given to them in the Business Combination Agreement.

Pursuant to the Business Combination
Agreement, and subject to the terms and conditions set forth therein, upon the consummation of the transactions contemplated thereby (the
“Closing” and the date and time at which the Closing is actually held, the “Closing Date”), (a)
prior to the Closing, SPAC will effect a domestication under Section 388 of the DGCL and the Cayman Act (the “Domestication”),
pursuant to which SPAC will transfer by way of continuation to and become a Delaware corporation, (b) at least two hours after the Domestication,
SPAC Merger Sub will merge with and into SPAC, with SPAC continuing as the surviving company and a wholly-owned subsidiary of Pubco (the
“SPAC Merger”) and with SPAC shareholders receiving