[8-K] McEwen Inc. Reports Material Event

Rhea-AI Filing Summary

McEwen Inc. reported that the Mexican government has granted an extension of its Environmental Impact Assessment for the El Gallo Mine. This regulatory approval is a key step that is expected to allow the company to start Phase 1 mill construction, which McEwen currently plans to begin in mid-2026. The company highlighted that this development is described in more detail in a press release furnished as an exhibit, and it also reminded readers that future outcomes remain subject to the usual operational, regulatory, and market risks outlined in its risk factor disclosures.

Insights

Mining sector and project-permitting analyst

EIA extension de-risks permitting at El Gallo but timelines remain early-stage.

The key development is that the Mexican government has granted an extension of the Environmental Impact Assessment for McEwen Inc.'s El Gallo Mine. This type of permit is a core regulatory requirement for construction and operation, so an extension reduces uncertainty around environmental authorization for the planned project.

The company states that this approval is expected to allow it to begin Phase 1 mill construction, with activity planned to start in mid-2026. The disclosure does not quantify expected production, capital costs, or financial impact, so the economic scale of Phase 1 is not clear from this text alone. Forward-looking language emphasizes that numerous risks, including permitting, construction, metal prices, and political conditions, could still affect outcomes.

Overall, this appears to be a constructive permitting milestone for El Gallo but remains one step in a longer development path. Future company filings and updates would need to detail project economics, schedule, and capital plans to understand how this extension may influence McEwen Inc.'s longer-term production profile and financial performance.

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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):        December 16, 2025

McEWEN INC.

(Exact name of registrant as specified in its charter)

Colorado		001-33190		84-0796160
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

150 King Street West, Suite 2800 Toronto, Ontario, Canada	M5H 1J9
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number including area code:       (866) 441-0690

(Former name or former address, if changed since last report)

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 (17 CFR 230.425)

¨  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock		MUX		New York Stock Exchange

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 7.01 Regulation FD Disclosure.

The information set forth in Item 8.01 below is incorporated by reference into this Item 7.01. A copy of a press release announcing that the extension of McEwen Inc.’s (the “Company”) Environmental Impact Assessment for the El Gallo Mine has been granted by the Mexican government is attached as Exhibit 99.1 to this Current Report on Form 8-K (the “Current Report”) and is incorporated by reference into this Item 7.01. Investors and other interested parties are encouraged to read in its entirety the press release because it contains important information not otherwise described herein.

The information furnished under this Item 7.01, including the referenced exhibit, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by reference to such filing.

Item 8.01 Other Events.

On December 16, 2025, the Company announced the extension of its Environmental Impact Assessment for the El Gallo Mine has been granted by the Mexican government. This approval is expected to allow the Company to begin Phase 1 Mill Construction, which the Company expects to begin in mid-2026.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are furnished or filed with this report, as applicable:

Exhibit No.		Description
99.1		Press Release, dated December 16, 2025 (furnished herewith)
104		Cover Page Interactive Data File – the cover page XBRL tags are embedded within the Inline XBRL document

Cautionary Statement

With the exception of historical matters, this Current Report and the accompanying press release contains certain forward-looking statements and information, including "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The forward-looking statements and information expressed, as of the date of this Current Report and the accompanying press release, are estimates, forecasts, projections, expectations, or beliefs as to future events and results. Forward-looking statements and information are necessarily based upon a number of estimates and assumptions that, while considered reasonable by management, are inherently subject to significant business, economic, and competitive uncertainties, risks, and contingencies, and there can be no assurance that such statements and information will prove to be accurate. Therefore, actual results and future events could differ materially from those anticipated in such statements and information. Risks and uncertainties that could cause results or future events to differ materially from current expectations expressed or implied by the forward-looking statements and information include, but are not limited to, fluctuations in the market price of precious and base metals, mining industry risks, political, economic, social and security risks associated with foreign operations, the ability of the Company to receive or receive in a timely manner permits or other approvals required in connection with operations, risks associated with the construction of mining operations and commencement of production and the projected costs thereof, risks related to litigation, the state of the capital markets, environmental risks and hazards, uncertainty as to calculation of mineral resources and reserves, foreign exchange volatility, foreign exchange controls, foreign currency risk, and other risks. Readers should not place undue reliance on forward-looking statements or information included in this Current Report and the accompanying press release, which speak only as of the date hereof and thereof. The Company undertakes no obligation to reissue or update forward-looking statements or information as a result of new information or events after the date hereof except as may be required by law. See the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024, and other filings with the Securities and Exchange Commission, under the caption "Risk Factors", for additional information on risks, uncertainties and other factors relating to the forward-looking statements and information regarding the Company. All forward-looking statements and information made in this Current Report and the accompanying press release are qualified by this cautionary statement.

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 hereunto duly authorized.

	McEWEN INC.
Date: December 23, 2025	By:	/s/ Carmen Diges
		Carmen Diges, General Counsel

FAQ

What did McEwen Inc. (MUX) announce regarding the El Gallo Mine?

McEwen Inc. announced that the Mexican government has granted an extension of its Environmental Impact Assessment for the El Gallo Mine, a key regulatory approval for the project.

How does the Environmental Impact Assessment extension affect McEwen Inc.'s construction plans?

The company states that the approval is expected to allow it to begin Phase 1 mill construction at the El Gallo Mine, with work expected to start in mid-2026.

When did McEwen Inc. disclose the Environmental Impact Assessment extension?

McEwen Inc. disclosed the Environmental Impact Assessment extension in a report dated December 16, 2025, and furnished a related press release as an exhibit.

Where can investors find more details on McEwen Inc.'s El Gallo Mine approval?

Additional details are provided in a press release dated December 16, 2025, which is attached as Exhibit 99.1 and incorporated by reference in the disclosure.

What risks does McEwen Inc. highlight in connection with this El Gallo Mine update?

McEwen Inc. notes that forward-looking statements are subject to risks such as metal price fluctuations, mining and construction risks, political and social risks in foreign operations, permitting and approvals, environmental hazards, and other factors described under "Risk Factors" in its Form 10-K for the year ended December 31, 2024.

Is the information about the El Gallo Mine Environmental Impact Assessment considered filed with the SEC?

The company states that the information furnished under Item 7.01, including the attached press release, is not deemed "filed" for purposes of Section 18 of the Exchange Act and is not incorporated by reference into Securities Act filings unless expressly stated.