Silver Bow Mining Corp.

Item 8.01 Other Events. On September 8, 2026, the Company announced the receipt of court approval and completion of the first closing in its recently announced acquisition transaction with Montana Goldfields, Inc. and Montana Tunnels Mining, Inc. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Item 9.01 Financial Statements and Exhibits 99.1 Silver Bow Mining press release dated September 8, 2026 104 Cover Page Interactive Data File––the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. Additional information and where to find it This communication may be deemed to be solicitation material in respect of the proposed shareholders meeting of the Company to approve the issuance of the CVRs and the underlying common shares. In connection with the proposed shareholders meeting, the Company intends to file relevant materials with the U.S. Securities and Exchange Commission (the “SEC”), including the Company’s proxy statement in preliminary and definitive form. INVESTORS AND SHAREHOLDERS OF SILVER BOW MINING ARE URGED TO READ ALL RELEVANT DOCUMENTS FILED WITH THE SEC, INCLUDING SILVER BOW MINING’S PROXY STATEMENT (WHEN THEY ARE AVAILABLE), BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION ABOUT THE SHAREHOLDER APPROVAL BEING REQUESTED. Investors and shareholders of the Company are or will be able to obtain these documents (when they are available) free of charge from the SEC’s website at www.sec.gov, or free of charge from the Company under the “Investors” section of the Company’s website at www.silverbowmining.com/investors or by sending a request by e-mail to ir@silverbowmining.com or by mail to 1401 Idaho Street, Butte, Montana 59701, attention: Corporate Secretary. Participants in the solicitation The Company and certain of its respective directors and executive officers, under SEC rules, may be deemed to be “participants” in the solicitation of proxies from shareholders of the Company in connection with the proposed transaction. Information about the Company’s directors and executive officers is available in the Company’s registration statement on Form S-1/A, which was filed with the SEC on April 21, 2026. To the extent holdings of the Company’s securities by their respective directors or executive officers have changed since the amounts set forth in the Registration Statement on Form S-1/A, such changes have been or will be reflected on Initial Statements of Beneficial Ownership on Form 3 or Statements of Change in Ownership on Form 4 filed with the SEC. Additional information concerning the interests of the Company’s participants in the solicitation, which may, in some cases, be different than those of the Company’s shareholders generally, will be set forth in the Company’s proxy statement relating to the proposed approval by shareholders, when it becomes available.