Casa Minerals raises up to $4 million in non-brokered private placement

Vancouver, British Columbia--(Newsfile Corp. - September 9, 2026) - Casa Minerals Inc. (TSXV: CASA) (OTCQB: CASXF) (FSE: 0CM) (the "Company" or "Casa" ) announces that the Company proposes to raise gross proceeds of up to $4M (the " Financing ") by issuing up to:

25,000,000 units in a flow-through private placement at a price of $0.10 per unit (a " FT Unit ") for gross proceeds of up to $2,500,000. Each FT Unit will consist of one flow-through common share and one-half of a non flow-through common share purchase warrant (a " Warrant "), exercisable to purchase one additional non flow-through common share at a price of $0.15 for a period of twenty-four (24) months from the date of issuance; and

21,428,571 units in a non-flow-through private placement at a price of $0.07 per unit (a " Unit ") for gross proceeds of up to $1,500,000. Each Unit will consist of one common share and one common share purchase Warrant, with each Warrant exercisable to purchase one additional common share at an exercise price of $0.125 for a period of twenty-four (24) months from the date of issuance.

The Company can elect to accelerate the expiry of the Warrants in the event that the volume-weighted average trading price of its common shares on a stock exchange equals or exceeds $0.20 for five (5) consecutive trading days, in which case the Warrants will expire thirty (30) days after the date that the Company provides written notice of acceleration by way of the issuance of a press release announcing the same.

There will be insider participation in the Financing. Finders' fees may be paid on a portion of the Financing, subject to the acceptance of the Exchange.

The proceeds from the issuance of the FT Units will be used for "Canadian exploration expenses" and will qualify as "flow-through mining expenditures" (the " Qualifying Expenditures "), as defined in subsection 127(9) of the Income Tax Act (Canada). The Company intends to renounce the Qualifying Expenditures to subscribers of FT Units for the fiscal year ended December 31, 2027. The proceeds from the issuance of Units will be primarily used for exploration activities at the Company's properties, as well as for general working capital purposes.

All securities issued in the Financing will be subject to a four-month hold period. The Financing is subject to the acceptance of the Exchange.

Certain directors of CASA may participate in the private placement. As insiders, the subscriptions of these parties will be considered to be a "related party transaction" within the meaning of TSXV Policy 5.9 and Multilateral Instrument 61-101 ("MI 61-101"). CASA intends to rely on the exemptions from the valuation and minority shareholder approval requirements of MI 61-101 contained in sections 5.5(a) and 5.7(a) of MI 61-101 in respect of such insider participation.

This press release does not constitute an offer to sell or a solicitation of an offer to buy nor shall there be any sale of any of the Shares in any jurisdiction in which such offer, solicitation or sale would be unlawful. The Shares have not been, and will not be, registered under the United States Securities Act of 1933, as amended (the "U.S. Securities Act"), or the securities laws of any state of the United States, and may not be offered or sold in the United States or to, or for the account or benefit of, U.S. persons (as defined in Regulation S under the U.S. Securities Act) absent registration under the U.S. Securities Act and applicable state securities laws or an exemption from such registration requirements.