Montero Comments on Proposed Changes to Chile's Mining Concession Regime

Toronto, Ontario--(Newsfile Corp. - May 21, 2026) - Montero Mining and Exploration Ltd. (TSXV: MON) (OTC Pink: MXTRF) (FSE: ES0) ("Montero" or the "Company") notes the announcement by the Government of Chile regarding proposed amendments to Chile's Mining Code and mining concession fee regime, aimed at supporting mineral exploration and development activities in the country.