April 13, 2026 – Vancouver, British Columbia – Argentina Metals Corp. (“AMC” or the “Company”) is pleased to announce that the Company has closed the first tranche of a non-brokered private placement (the “Financing”) raising aggregate gross proceeds of C$608,539.80 through the issuance of 1,014,233 common shares (the “Shares”) at a purchase price of C$0.60 per Share. The Company will use the gross proceeds from the Financing for general corporate and working capital purposes. No finder’s fees were paid in connection with the Financing. The Company may issue additional Shares in subsequent closings of the Financing. All Shares issued in connection with the Financing will be subject to a four-month hold in accordance with applicable Canadian securities legislation.

Certain insiders of the Company have subscribed to the Financing for an aggregate of C$25,000.20 or 41,667 Shares. That portion of the Financing is a “related party transaction” as such term is defined under Multilateral Instrument 61-101 – Protection of Minority Security Holders in Special Transactions (“MI 61-101”). The Company is relying on exemptions from the formal valuation and minority approval requirements of MI-61-101 under sections 5.5(a) and 5.7(a) of MI 61-101 in respect of the transaction as the fair market value of the transaction, insofar as it involves the interested parties, is not more than 25% of the Company’s market capitalization.

Mirasol Share Issuance

The Company also announces that, further to its press release dated January 26, 2026, with respect to the acquisition of certain mineral properties in Mendoza, Argentina from Mirasol Resources Ltd. (“Mirasol”), that the Company and Mirasol entered into an amendment dated April 8, 2026, pursuant to which the remaining 866,667 Shares issuable to Mirasol under the purchase agreement have been issued as at April 10, 2026 (the “Mirasol Share Issuance”) and that no further amounts remain payable by the Company. All Shares issued in connection with the Mirasol Share Issuance will be subject to a four-month hold in accordance with applicable Canadian securities legislation. All other terms of the transaction with Mirasol remain unchanged.

Option Exercise

AMC also announces that on April 10, 2026, in accordance with the terms of the Company’s stock option plan dated November 20, 2024, the Company accelerated the vesting of the 750,000 stock options issued on February 25, 2025 in consideration for the immediate exercise of such options which has resulted in gross proceeds to the Company of C$75,000 (the “Option Exercise”).

Consulting Agreements

AMC also announces that it has entered into a consulting agreement (the “Andina360 Consulting Agreement”) with Andina360 LLC (“Andina360”), pursuant to which Andina360 has agreed to provide corporate mining technical advisory services to the Company as a Strategic Exploration & Development Advisor and to second a senior exploration geologist to serve as VP Exploration of the Company.

The Andina360 Consulting Agreement contemplates an initial term commencing February 17, 2026 for a period of twelve (12) months, unless earlier terminated in accordance with its terms, and may be extended by written agreement of the parties. Pursuant to the Andina360 Consulting Agreement, the Company will pay Andina360 a monthly retainer of US$10,000. In addition, the Company has issued to Andina360 an aggregate of 500,000 Shares subject to resale restrictions tied to the Listing Date and subsequent anniversaries.

Marketing Services Agreements

Argentina Metals announces that it has entered into a consulting services agreement dated April 1, 2026 with Euroswiss Capital Partners Inc. (“Euroswiss”), pursuant to which Euroswiss will provide strategic and financial consulting services focused on European markets. The agreement has an initial term of twelve (12) months, with an engagement fee of EUR 60,000 payable in four equal installments of EUR 15,000 at the commencement of each three-month period.

Argentina Metals also announces that it has entered into a master services agreement effective April 7, 2026 with 1001103323 Ontario Inc. (d.b.a Revolution Small Cap Marketing) (“Revolution”), pursuant to which Revolution will provide marketing and consulting services for a fee of C$65,000 plus applicable taxes payable prior to commencement of services.

Argentina Metals also announces that it has entered into a consulting and media services agreement with InvestorNews Inc. (“InvestorNews”), pursuant to which InvestorNews will provide online media consulting and digital investor communications services for a fixed fee of C$15,375 over a one-year term.

Following closing of the Financing, Mirasol Share Issuance, Option Exercise and the share issuance to Andina360, the Company has 23,857,781 Shares issued and outstanding.

About Argentina Metals Corp.

Argentina Metals is a Canadian-domiciled mineral exploration company focused on the exploration and development of copper assets in highly prospective, underexplored districts in Mendoza, Argentina. Argentina Metals holds a 100% interest in a district-scale land package in Mendoza, Argentina, with no underlying royalties or encumbrances, other than royalties payable to the Province of Mendoza.

Raymond D. Harari, Chief Executive Officer — e: rdh@canaliscapital.com — t: +507-6675-2221