Company: MLAC
Filing Date: 2025-11-21
Form Type: 425
Source: 0001213900-25-113276
Chunk: 1

Company: Mountain Lake Acquisition Corp.
Filing Date: 2025-11-21
Form: 425
Chunk 1
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 following communications were made by Bart Smith, Chief Executive
Officer of Pubco, from his X account on October 22, 2025 and October 7, 2025:

<div align='center'>12</div>

The following communications were made by Laine Litman, Chief Operating
Officer of Pubco, from her X account on October 21, 2025 and October 13, 2025:

<div align='center'>13</div>

The following communications were made by John Nahas, Board Member
of Pubco, from his X account on October 9, 2025 and October 2, 2025:

<div align='center'>14</div>

The following communications were made by Budd White, Chief Strategy
Officer of Pubco, from his X account on October 15, 2025:

Additional Information and Where to Find It

Pubco and Newco intend
to file with the Securities and Exchange Commission (the “SEC”) a Registration Statement on Form S-4 (as may be amended, the
“Registration Statement”), which will include a preliminary proxy statement of Mountain Lake and a prospectus (the “Proxy
Statement/Prospectus”) in connection with the business combination (“Business Combination”) between Mountain Lake, Pubco
and Newco and concurrent private placement of Newco units (the “Private Placement”, together with the Business Combination,
the “Proposed Transactions”). The definitive proxy statement and other relevant documents will be mailed to shareholders of
Mountain Lake as of a record date to be established for voting on the Business Combination and other matters as described in the Proxy
Statement/Prospectus. Mountain Lake and/or Pubco will also file other documents regarding the Proposed Transactions with the SEC. This
communication does not contain all of the information that should be considered concerning the Proposed Transactions and is not intended
to form the basis of any investment decision or any other decision in respect of the Proposed Transactions. BEFORE MAKING ANY VOTING OR
INVESTMENT DECISION, SHAREHOLDERS OF MOUNTAIN LAKE AND OTHER INTERESTED PARTIES ARE URGED TO READ, WHEN AVAILABLE, THE PRELIMINARY PROXY
STATEMENT/PROSPECTUS, AND AMENDMENTS THERETO, AND THE DEFINITIVE PROXY STATEMENT/PROSPECTUS AND ALL OTHER RELEVANT DOCUMENTS FILED OR
THAT WILL BE FILED WITH THE SEC IN CONNECTION WITH MOUNTAIN LAKE’S SOLIC