Cascade Copper samples 1.8% Cu at Centrefire

Executive Summary

• Cascade Copper Corp. released additional assay results from the second batch of rock samples collected during its Q4 2025 field program at the Centrefire copper-gold project in Ontario.
• The results confirm copper, gold, and silver mineralization across a 10-kilometer strike length, with significant high-grade grab samples and the identification of new prospective targets via 3-D magnetic inversion modeling.
• A drill permit has been submitted with approval expected in Q1 2026, and the company plans to follow up magnetic anomalies with soil sampling, geophysics, and drilling.

Key Details

• Sample Results (Batch 2):
  • Sample CFRX028: 1.80% Copper from highly mineralized and altered mafic pillow basalt.
  • Sample CFRX036: 0.93% Copper and 0.776 g/t Gold from similar mineralized pillow basalt, located ~450 meters from CFRX028.
  • Sample CFRX002: 813 ppm Copper (0.08%) taken near the eastern limit of the project, indicating mineralization over 9.0 kilometers along strike from the Main Gossan Zone (MGZ).
  • Sample CFRX018: 0.11% Tungsten (noted as atypical for primary VMS but indicative of disruptive hydrothermal fluids).
• Previous Results (Batch 1 - Released Jan 6, 2026):
  • Included up to 2.86% Copper, 2.84 g/t Gold, and 29.40 g/t Silver in grab samples.
• Geophysics and Modeling:
  • Magnetic inversion modeling reveals disrupted magnetic trends near surface and at depth, similar to the MGZ.
  • Several stacked parallel zones of intense magnetics trace banded iron formation (BIF); infiltration by hot mineralizing fluids creates distinctive magnetic breaks.
  • Outlined several large analogous zones of high interest up to 10 kilometers along strike of the MGZ.
  • Drone magnetics survey completed for the eastern portion; complementary VTEM survey planned.
• Exploration Strategy:
  • Mineralization is associated with BIF and VMS-style deposits with intense hydrothermal activity.
  • The presence of tungsten suggests disruptive hydrothermal fluids affecting magnetic signatures.
  • Sandy till limits outcrop exposure, necessitating geophysical surveys (EM and magnetics) for discovery.
• Next Steps:
  • Drill permit submitted; approval expected in Q1 2026.
  • Planned drill program to delineate targets based on current results and modeling.
  • Planned easterly extension of the VTEM survey to interpret geological potential in the eastern portion of the project.
• Technical Details:
  • Samples analyzed by ALS Canada Ltd. using 30-gram fire assay fusion (Au-ICP21) and 34-element four-acid digest ICP-AES (ME-ICP61).
  • Technical information prepared by Shannon Baird, PGeo, Vice-President of Exploration.

Notable Quotes

• Jeff Ackert, President and CEO: "The additional sample results from Centrefire show that mineralization is evident along the trend from the MGZ in the southwest to the extent of the project area to the northeast. The MGZ is the obvious target for drilling this year, but we are confident that there may be other similar copper, gold and silver mineralized zones beneath the glacial till and sand along this trend."
• Jeff Ackert, President and CEO: "The 3-D modelling of the magnetics is showing some similar attributes as the MGZ along this trend, which we will follow up with soil sampling and geophysics to better define these areas."