Cascada Silver changes name to Aterra Metals

Executive Summary

• Cascada Silver Corp. has officially changed its name to Aterra Metals Inc., with shares commencing trading under the symbol ATC on December 16, 2025, to reflect a strategic pivot toward copper and gold exploration.
• The company is finalizing binding option agreements to acquire three advanced copper-gold porphyry properties in Region III, Chile (Frontera, Taruca, and Clinton), following initial memoranda of understanding signed on November 20, 2025.
• The release provides historical exploration data for the target properties, including a historical mineral resource estimate for the Frontera property and significant historical drilling intercepts for the Taruca and Clinton properties, which will guide future exploration programs.

Key Details

• Name Change: Cascada Silver Corp. is now Aterra Metals Inc.
• Trading Symbol: ATC (OTCQB symbol to be updated in due course).
• Effective Date: Trading under the new name begins December 16, 2025.
• Strategic Rationale: The name change reflects the company's focus on copper and gold exploration and development, inspired by the mineral-rich terrain of the Atacama region.
• Acquisition Targets: Three advanced copper-gold porphyry properties in Region III, Chile, approximately 60 km south of Vallenar:
  1. Frontera Property:
     • Historical Mineral Resource Estimate (JORC Code, 2014):
       • Indicated: 16 million tonnes at 0.66% CuEq (0.38% Cu, 0.22 g/t Au).
       • Inferred: 34 million tonnes at 0.64% CuEq (0.36% Cu, 0.22 g/t Au).
     • Cut-off grade for resource: 0.25% Cu.
  2. Taruca Property (Totora Target):
     • Historical Drilling Highlights:
       • Hole DDHTP-02: 142 m at 0.69% CuEq (0.47% Cu, 0.17 g/t Au).
       • Hole DDHTO-07: 114 m at 0.61% CuEq (0.23% Cu, 0.31 g/t Au).
  3. Clinton Property:
     • Historical Drilling Highlights:
       • Hole RCCL-01: 166 m at 0.62% CuEq (0.23% Cu, 0.31 g/t Au).
       • Hole DDHCL-06: 278 m at 0.61% CuEq (0.23% Cu, 0.30 g/t Au).
• Valuation Methodology: Copper equivalent (CuEq) grades calculated using $4/lb Cu and $3,500/oz Au ($112.53/g). Formula: CuEq = ((Au grade * 112.53) / 4.00 / 2,204.6) * 100 + Cu grade. No recovery factors used.
• Technical Disclaimer: Cascada has not verified the historical results or underlying technical basis. The data is considered reliable only for planning future exploration, not as a current mineral resource. No NI 43-101 qualified person has classified the historical estimate as a current resource.
• Qualified Person: Francisco Bravo (Santiago, Chile), registered geologist (Ndegree 515, Chile; Ndegree 725, Colegio de Geologos de Chile). He is not considered independent under NI 43-101.

Notable Quotes

• Carl Hansen, CEO: "The name Aterra Metals is inspired by the potential of Atacama's mineral-rich terrain. It reflects management's exceptional discovery record in Chile's Atacama region -- one of the world's most productive mining areas. For more than three decades, our team has consistently demonstrated a proven ability to identify and advance high-value mineral deposits. This experience and sustained success underpins our strategy for generating meaningful shareholder value as we finalize the recently announced acquisitions of three advanced-stage copper-gold properties."