Glenstar completes trenching program at Wildhorse

Executive Summary

• Glenstar Minerals Inc. completed a successful trenching program at its Wildhorse Project in Nevada, uncovering a new east-west mineralized trend at the Coca Cola zone.
• The trenching defined a metre-scale zone of quartz veining and copper oxide/sulfide mineralization, tracing 15 metres of strike length and revealing wider alteration than anticipated.
• The discovery of this new trend, intersecting the previously known north-south trend, will guide the targeting of the first phase of drilling at the site.

Key Details

• Trenching Results: Two trenches were excavated at the Coca Cola zone, exposing four bedrock exposure cuts and 14 chip channel samples (approx. 1.5 metres per sample).
• Mineralization Definition: Trenching defined a metre-scale zone of quartz veining and copper oxide and sulfide mineralization.
• Strike Length: The mineralized zone was traced for 15 metres along an east-west trend.
• Geological Findings:
  • The trenching exposed a wider width of alteration than anticipated.
  • A new east-west trend of highly fractured and altered rock was discovered, intersecting the previously identified north-south trend.
  • The new trend appears to continue beyond the trenches.
  • Geologic observations include a complex array of narrow porphyritic dikes with feldspar phenocrysts in a black, fine-grained matrix.
  • Presence of magnetite-plus-epidote-plus-pyrite alteration supports the interpretation of a copper-gold porphyry system.
• Previous Grab Sample Results (ALS Chemex):
  • Copper values: 1.6%, 5.3%, 2.3%, and 5.1%.
  • Average Silver: 21.6 ppm.
  • Average Bismuth: 156 ppm (anomalous).
  • Average Tungsten: 72.5 ppm.
• Sample Processing: All trench samples were logged, bagged, and sent to ALS Chemex in Vancouver, B.C., for assay analysis on Feb. 28, 2026.
• Future Plans: The new trending information will inform the targeting for the first phase of drilling at the site. Excavated dirt from the trenches will be used to construct foundations for two expected drill pads.
• Project Background: The Wildhorse property comprises 89 mineral claims (1,780 acres) in Mineral County, Nevada, with historical workings dating to the late 1800s/early 1900s. Initial assessments identified zones with >1 g/t gold, 1% copper, and 6,100 ppm antimony.

Notable Quotes

• Bob Marvin, Glenstar Geologist: "I'm quite excited that the visual examination of the bedrock uncovered in the trenches not only confirms what previous surface sampling suggested was occurring geologically at Wildhorse, but the discovery of the east-west mineralization trend also indicates that this zone may be much larger than we first thought."