Santacruz Silver Advances Soracaya Project Toward Production with Preliminary Mine Plan and Permitting

Executive Summary

• Santacruz Silver Mining Ltd. announced the initiation of development activities and pursuit of full production permitting for its wholly‑owned Soracaya Project in Bolivia.
• The company disclosed a Base‑Case Mineral Resource estimate of 4.14 million tonnes containing 31.62 Mt ZnEq (including Ag, Pb, Cu) at a 10 % ZnEq cut‑off.
• Santacruz engaged Atrium Research Corporation to provide paid research and interview services for the next 24 months, indicating ongoing investor outreach.

Key Details

• Project Advancement: Development work has begun on Soracaya; permitting efforts are underway to move toward a construction decision.
• Resource Estimate (10 % ZnEq cut‑off):
• Tonnes: 4,137,000
• Zinc Equivalent (ZnEq): 31.62 Mt
• Zinc: 1.23 g/t
• Lead: 7.23 g/t
• Copper: 0.09 g/t
• Silver: 259.76 g/t
• Technical Qualification: Resource estimate prepared by Garth Kirkham, P.Geo., of Kirkham Geosystems Ltd., qualified under NI 43‑101.
• Cut‑off Assumptions: Based on $3.65/lb Cu, $21.00/oz Ag, $1.15/lb Zn, $1.00/lb Pb; OPEX $156/t (2023 Porco mine data); recoveries – Cu 70 %, Zn 80 %, Pb 70 %, Ag 85 %.
• Historical Drilling: Over 29.6 km of drilling across 90+ holes since 1999 supporting the resource model and preliminary mine plan.
• Future Plans: Company will share details on full construction decision at a later date; focus remains on cost‑controlled growth in Bolivia.
• Analyst Coverage Agreement: Atrium Research Corp. to receive C$3,500 per month for research services and recorded management interviews over 24 months starting Dec 1 2025; Atrium holds no equity or options in Santacruz.

Notable Quotes

“With the preliminary mine plan in place and the permitting process underway, Soracaya is emerging as a cornerstone growth project for Santacruz in Bolivia… we are laying the foundation to add another producing mine to our portfolio while we keep a disciplined approach to cost control.” – Arturo Préstamo, Executive Chairman & CEO

Materiality Assessment: Material – Positive (significant development milestone and resource disclosure likely to impact investor perception).