Company: CSLMF
Filing Date: 2025-05-22
Form Type: PRE 14A
Source: 0001193125-25-125124
Chunk: 6

Company: CSLM ACQUISITION CORP.
Filing Date: 2025-05-22
Form: PRE 14A
Chunk 6
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 how to vote your shares, or you may cast your vote in person (including virtually) at the General Meeting by obtaining a proxy from your brokerage firm or bank. Your failure to vote or instruct your broker or bank how to vote will have no effect on the outcome of the proposals. Important Notice Regarding the Availability of Proxy Materials for the General Meeting to be held on , 2025: This notice of meeting, the accompany proxy statement and proxy card are available at https://www.cstproxy.com/cimspac/2025.

CSLM ACQUISITION CORP. 2400 E. Commercial Boulevard, Suite 900, Ft. Lauderdale, FL 33308 PROXY STATEMENT CSLM ACQUISITION CORP., (the “ Company,” “ CSLM,” “ we,” “ us” or “ our”), a Cayman Islands exempted company, is providing this proxy statement in connection with the solicitation by the Company’s board of directors (the “ Board”) of proxies to be voted at the General Meeting to be held 10:00 a.m. ET on , 2025. The physical place of the meeting will be held at 2400 E. Commercial Boulevard, Suite 900, Ft. Lauderdale, FL 33308. For more information please visit https://www.cstproxy.com/cimspac/2025. The Company has identified a potential business combination target company (the “ Target”) for an initial business combination (the “ Proposed Business Combination”). The Company believes the Target is a compelling opportunity for the Company’s initial business combination and is currently in the process of completing an initial business combination involving the Target. The purpose of the Extension Proposal is to allow the Company more time to complete its Proposed Business Combination. The Company will also be holding the General Meeting via teleconference using the following dial-ininformation: (877) 853-5257(US Toll Free) (888) 475-4499(US Toll Free) International numbers available: https Conference ID: The General Meeting will be held for the sole purpose of considering and voting upon:

| • |     | The Extension Proposal — to consider and vote upon a proposal by a special resolution in the                                                                                                                                                                                                                                                                       
 form set forth in Annex B of the accompanying proxy statement to amend (the “Extension Proposal”) the Company’s Existing Charter to extend from August 18, 2024 (the “Current Termination Date’) on a month-to-month basis, up to October 18, 2025 (the “