• Idaho Strategic Resources flagged heavy rare earth mineralization, including yttrium, from surface sampling at its Diamond Creek project in Idaho.
• Results averaged about 1.8% total rare earth oxides; heavy rare earth oxides averaged above 2,000 ppm, including more than 1,300 ppm yttrium.
• At the Lucky Gem prospect, a 32-meter trench averaged 1.5% TREO; drillhole DC 22-8 cut 11 meters at 1.5% TREO.
• Yttrium concentrations frequently ran 800-2,000 ppm; mineralogy work to date indicates xenotime as the main yttrium-bearing mineral.
• Next steps include 2026 fieldwork, processing test work, mineralogical studies, follow-up exploration, possible bulk sampling at Lucky Gem.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Idaho Strategic Resources Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 202607230700BIZWIRE_USPR_____20260723_BW497223) on July 23, 2026, and is solely responsible for the information contained therein.