Magnum Goldcorp Inc. Announces Second Amendment to Amalgamation Agreement with Atlantico Energy Metals, Delisting from TSX Venture Exchange, Anticipated Listing on Canadian Securities Exchange and Postponement of Warrant Amendments

West Vancouver, British Columbia--(Newsfile Corp. - March 27, 2026) - Magnum Goldcorp Inc. (TSXV: MGI) (the "Company" or "Magnum") is pleased to announce that it has entered into a second amending agreement dated March 26, 2026 (the "Second Amendment") to the amalgamation agreement dated October 27, 2025, as amended January 12, 2026 (the "Agreement"), with Atlantico Energy Metals Corp. ("Atlantico") to acquire all of the outstanding shares of Atlantico (the "Transaction"), previously disclosed in the Company's news releases dated October 28, 2025 and January 15, 2026. Pursuant to the Second Amendment, the outside date for completion of the Transaction has been extended to May 31, 2026 (from March 31, 2026) (the "Extended Closing Deadline") to provide the parties with additional time to complete the Transaction.