UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington,
D.C. 20549
FORM
6-K
REPORT
OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER
THE SECURITIES EXCHANGE ACT OF 1934
For
the month of October 2026
Commission
File Number: 001-42949
APEX
CRITICAL METALS CORP.
(Translation
of registrant’s name into English)
Suite
400 - 570 Granville Street, Vancouver, British Columbia V6C 3P1, Canada
(Address
of principal executive office)
Indicate
by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form
20-F ☐ Form 40-F ☒
INCORPORATION
BY REFERENCE
Exhibit
99.1 contained in this Form 6-K is hereby incorporated by reference into the registrant’s registration statement on Form F-10 (File
No. 333-298319), as amended or supplemented, to the extent not superseded by documents or reports subsequently filed or furnished by
the registrant under the Securities Act of 1933 or the Securities Exchange Act of 1934, in each case as amended.
SUBMITTED
HEREWITH
| Exhibit |
|
| 99.1 |
Press release of Apex Critical Metals Corp. dated October 27, 2026, titled “Apex Announces Closing of Over-Allotment Option” |
SIGNATURES
Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned, thereunto duly authorized.
| APEX CRITICAL METALS CORP. | |
| | |
| /s/ Nathan Steinke | |
| Nathan Steinke, Chief Financial Officer | |
| Date: |
October 27, 2026 | |
Exhibit
99.1

Apex
Announces Closing of Over-Allotment Option
VANCOUVER,
British Columbia, October 27, 2026 – Apex Critical Metals Corp. (NASDAQ and CSE: APXC | OTCQX: APXCF | FWB: KL9 | Euronext
Access Paris: MLAPX) (“Apex” or the “Company”), a mineral exploration company focused on advancing
its strategic 100%-controlled Rift Rare Earth Project within the Elk Creek Carbonatite Complex in southeastern Nebraska, U.S.A., today
announced that it has issued an additional 60,000 American Depositary Shares (“ADSs”) at the public offering price
of US$4.65 per share pursuant to the full exercise of the underwriter’s over-allotment option in connection with the Company’s
previously announced public offering of ADSs (the “Offering”).
Maxim
Group LLC acted as sole book-running manager for the Offering.
The
Offering was made pursuant to an effective shelf registration statement on Form F-10 (File No. 333-298319) previously filed with the
U.S. Securities and Exchange Commission (the “SEC”) and became effective on August 13, 2026. No securities were offered or
sold to Canadian purchasers under the Offering. A final prospectus supplement and accompanying prospectus relating to the Offering and
describing the terms thereof was filed with the SEC and forms a part of the effective registration statement and is available on the
SEC’s website at www.sec.gov and on SEDAR+ website at www.sedarplus.ca. Copies of the final prospectus supplement and accompanying
prospectus may be obtained by contacting Maxim Group LLC, at 300 Park Avenue, 16th Floor, New York, NY 10022, Attention: Syndicate Department,
or by telephone at (212) 895-3745 or by email at syndicate@maximgrp.com.
This
press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale
of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration
or qualification under the securities laws of any such state or other jurisdiction.
On behalf of the
Board of Directors
APEX
CRITICAL METALS CORP.,
Sean
Charland
Chief
Executive Officer
Tel:
604.681.1568
Email:
info@apexcriticalmetals.com
Neither
the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in the policies of the CSE) accepts responsibility
for the adequacy or accuracy of this release.