Blue Star Acquires Historical Dataset and Confirms Cu-Rich VMS Mineralization at Sand Lake Prospect

Vancouver, British Columbia--(Newsfile Corp. - April 21, 2026) - Blue Star Gold Corp. (TSXV: BAU) (OTCQB: BAUFF) (FSE: 5WP0) ("Blue Star" or the "Company") is pleased to announce the acquisition of a substantial historical dataset covering the Sand Lake prospect within the Roma Project. The dataset includes ground electromagnetic (EM) surveys, borehole EM data, and geological information from historical drilling that intersected stringer to massive sulphide mineralization associated with a copper-rich volcanogenic massive sulphide (VMS) system.