Rokmaster Commences IP Survey at Mystery to Refine Porphyry Targets

Executive Summary

• Rokmaster Resources is mobilizing crews to conduct a detailed Induced Polarization (IP) Survey on its Mystery Property to refine and prioritize drill targets for fall drilling.
• The geophysical program will cover multiple porphyry Cu-(Mo±Au) prospects, including the B2/B3 zones and the Ford Anomaly area, using targeted subsurface data to navigate glacial cover and alteration zones.
• Additional field work is scheduled for the Fox-Coconut Property, geochemical results from the April 2026 Hanson Property drill program are imminent, and management confirms the company is fully funded for all planned 2026 exploration programs.

Key Details

• IP Survey on Mystery Property will use a pole-dipole active array to investigate chargeability and resistivity to depths of 300-400 m.
• B2 and B3 zones target elevated copper, molybdenum, and gold in rock samples associated with strongly potassic-altered andesite hosting dense pyrite-chalcopyrite-biotite-magnetite veinlets.
• B2 Zone is exposed along a creek for ~200 m; the surrounding ~800 m toward B3 is covered by glacial till, requiring geophysical guidance for specific drill targeting.
• ~2.5 km northeast: IP Survey planned for Ford Anomaly area to investigate a coincident soil and magnetic anomaly in Kasalka Group rhyolite displaying strong phyllic alteration and disseminated pyrite.
• Prior hyperspectral work in the Ford Anomaly area shows higher-temperature paragonite at depth, inferring potential for mineralization below surface levels.
• ~1.1 km north of Ford Anomaly: IP Survey will test an area of stockwork quartz veining in sericite- and potassic-altered porphyritic monzonite.
• Re-Os age dating of molybdenite in this area falls within the late Cretaceous Bulkley Intrusive Suite, linking it to regional porphyry systems (Huckleberry, Ox, Seel, Poplar Deposits).
• Field work on Fox-Coconut Property planned for early June to further explore high-grade gold and silver mineralization.
• Geochemical results from the April 2026 Hanson Property drill program are expected shortly and will be reported promptly.
• Nechako Project spans 26,704 hectares (267 km²) across three drill-permitted properties in west-central British Columbia, positioned in the southern Stikine terrane.
• Management explicitly states the company is fully funded to execute all currently planned exploration programs.

Notable Quotes

• John Mirko, President and CEO: "The IP Survey planned for the Mystery Property will capture valuable subsurface geophysical data to refine several compelling targets on the Property. We are excited to continue advancing the Nechako Project throughout 2026 and are fully funded to complete the programs as currently planned. This region and its underlying geology represent an exceptional setting for the discovery of significant porphyry copper mineralization – an opportunity that Rokmaster is actively pursuing."