Company: MLAC
Filing Date: 2025-10-02
Form Type: 425
Source: 0001213900-25-094951
Chunk: 0

Company: Mountain Lake Acquisition Corp.
Filing Date: 2025-10-02
Form: 425
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

Current Report

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of
earliest event reported): October 1, 2025 ( October 1, 2025)

Mountain Lake Acquisition Corp.

(Exact Name of Registrant
as Specified in its Charter)</div>

| Cayman Islands               |     | 001-42436               |     | 98-1796213         |
| (State or other jurisdiction 
 of incorporation)            |     | -Commission File Number |     | -I.R.S. Employer   
 Identification No. |

| 930 Tahoe Blvd STE 802 PMB 45            
 Incline Village, NV 89451                |     |     89451 |
| (Address of Principal Executive Offices) |     | -Zip Code |

<div align='center'>Registrant’s telephone
number, including area code: ( 775) 204-1489

N/A

(Former name or former
address, if changed since last report)</div>

Check the appropriate
box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following
provisions:

| ☒ | Written communications pursuant to Rule 425 under the Securities Act             |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act               |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act |

Securities registered
pursuant to Section 12(b) of the Act:

| Title of each class                                                                                                                                                     |     | Trading Symbol(s) |     | Name of each exchange on which registered |
| Units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one Right entitling the holder to receive one-tenth of an Class A Ordinary Share |     | MLACU             |     | The Nasdaq Stock Market LLC               |
| Class A Ordinary Shares                                                                                                                                                 |     | MLAC              |     | The Nasdaq Stock Market LLC               |
| Rights                                                                                                                                                                  |     | MLACR             |