Vancouver, British Columbia–(Newsfile Corp. – September 28, 2026) – Goldgroup Mining Inc. (TSXV: GORO) (NYSE American: GORO) (FSE: 55G) (“Goldgroup” or the “Company”) has entered into a binding commitment (the “Investment Commitment“) to invest US$75 million in Luca Mining Corp. (“Luca“), subject to adjustment as described below. Under the Investment Commitment, Goldgroup has agreed to participate in Luca’s US$110 million private placement of subscription receipts (the “Subscription Receipts“) announced by Luca on September 21, 2026 (the “Luca Offering“) in connection with Luca’s proposed acquisition of the Cozamin Mine (the “Cozamin Acquisition“). Luca intends to use the net proceeds of the Luca Offering to fund a portion of…