Harvest Gold discovers Au-Ag-Cu halos at Mosseau

Executive Summary

• Harvest Gold Corp. has identified significant near-surface gold-silver-copper (Au-Ag-Cu) halos in the northern portion of its Mosseau property in Quebec by re-evaluating historical drilling data with a lower gold cut-off grade.
• The re-evaluation highlights broad zones of mineralization consistent with the company's recent 2025 drilling results, specifically identifying three principal areas of interest: Trench No. 1, the Morono gold deposit, and isolated targets along the northern boundary.
• Based on these findings, the company is contemplating a follow-up drill program consisting of up to 40 diamond drill holes totaling up to 6,000 meters to further test and expand these newly discovered halo zones.

Key Details

• Re-evaluation Methodology: The company applied a lower gold cut-off grade to historical data to better define broad zones of mineralization consistent with Au and Ag-Cu pathfinders recognized in the 2025 drilling program.
• Target Areas Identified:
  • Trench No. 1
  • Morono gold deposit
  • Isolated targets along the northern boundary of the property
• Historical Drill Results (SOQUEM, 2001 - Trench No. 1 Area):
  • Hole 1217-01-13: 1.44 g/t Au over 26.2 metres.
  • Hole 1217-01-14: 3.37 g/t Au over 14.1 metres.
  • Both holes returned anomalous silver and copper values associated with the higher-grade gold intervals.
• Historical Drill Results (Morono Gold Deposit):
  • M-4-88: 3.84 g/t Au over 8.4 metres.
  • M-12-87: 3.05 g/t Au over 7.62 metres.
  • M-25-87: 2.66 g/t Au over 8.35 metres.
  • Locally extending up to 35.36 metres in width.
• Mineralization Style: Most historical intercepts occur at shallow depths and near surface, highlighting potential for bulk-tonnage and open-pit-style mineralization.
• Future Plans: Contemplating a follow-up drill program in the northern portion of the Mosseau property.
  • Proposed scope: Up to 40 diamond drill holes.
  • Proposed total length: Up to 6,000 metres.
• Disclaimer: Historical drill results were completed by previous operators and have not been independently verified by Harvest Gold. They are presented solely to provide context for current exploration results.

Notable Quotes

• Rick Mark, President and CEO: "Our most recent press release announced, among other things, 10- and 19-metre widths of anomalous gold or copper at depth below the historic, non-43-101 Morono gold deposit. We realized we had identified something new, 40-plus years after the last Morono drill program... This new understanding of the area's mineralization changed our thinking."
• Louis Martin, Geologist: "The identification of broad, near-surface gold with Ag-Cu pathfinders from historical drilling significantly strengthens the interpretation of our 2025 drill results. Re-evaluating the Mosseau data using this model continues to improve our understanding of the mineralizing system and provides a strong technical basis for targeting and additional drilling in the northern part of the property."