Eagle Plains Reports 2025 Results at Black Diamond Antimony and Precious Metal Project and Applies for Additional Tenure

Executive Summary

• Eagle Plains reported high‑grade polymetallic assay results from its 2025 field program on the Black Diamond Property, including a float sample with 3,350 g/t Ag and a grab sample from Silver Spray Adit with 1.2 g/t Au, 853 g/t Ag, and 15.6 % Pb.
• Additional soil and rock samples identified multi‑element anomalies (Ag, Cu, Pb, Sb) coincident with the Black Diamond structural zone and airborne geophysical targets.
• The company applied to the BC Mineral Titles Office for an extra 557 ha of contiguous tenure adjacent to the Black Diamond Property and highlighted ongoing exploration potential at its Snowstorm Project.

Key Details

• Property Overview: 866 ha, road‑accessible Black Diamond Property located 35 km west of Invermere, BC; 100 % owned by Eagle Plains with a 2 % NSR held by Eagle Royalties (including a 1 % buy‑back clause).
• LiDAR & Ground Truthing: LiDAR topographic anomalies confirmed historic Charlemont trenches and adit locations.
• Float Sample – Charlemont North (JCBDR002):
• Ag: 3,350 g/t
• Cu: 4.1 %
• Pb: 1.3 %
• Zn: 1.4 %
• Sb: 2.9 %
• Silver Spray Adit Grab Samples:
• KBBDR002 – Au 1.2 g/t, Ag 853 g/t, Cu 1.0 %, Pb 15.6 %, Sb 0.7 %
• KBBDR003 – Ag 1,200 g/t, Cu 0.3 %, Pb >20 %, Sb 0.4 %
• MKBDR001 – Au 0.6 g/t, Ag 1,235 g/t, Cu 2.4 %, Pb >20 %, Sb 2.2 %, Zn 1.0 %
• Soil Anomaly: A line of soil samples ~75 m downslope from historic adit showed a multi‑element anomaly (Ag, Cu, Pb, Sb) extending over 50 m, aligning with the projected Black Diamond structure trace and magnetic high/low contact.
• Sampling Effort: 12 rock samples and 42 soil samples collected during a one‑day field program focused on the southern portion of the property (Silver Spray Zone).
• Tenure Expansion Application: Submitted application for an additional 557 ha of contiguous mineral title through BC Mineral Titles Online.
• Snowstorm Property Highlights (non‑exhaustive):
• West Ridge vein grab: Ag 1,540 g/t, Pb 41.1 %, Sb 16.1 %, Cu 1.58 %.
• Silver Sparrow vein grab: Au 27.5 g/t, Ag 1,083 g/t, Pb 56.2 %, Zn 0.55 %.
• Recent 2024 field work identified historic Pine Tree occurrence; float sample KBSWR014 returned Au 76.30 g/t, Ag 56.30 g/t, Pb 3.30 %.
• Qualified Person: Technical information reviewed and approved by C.C. Downie, P.Geo., Director & Officer (QP under NI 43‑101).

Notable Quotes

“The high‑grade polymetallic assays from our recent field program underscore the significant exploration upside at Black Diamond and reinforce our strategy of advancing grassroots projects with critical metal potential.” – C.C. Downie, President & CEO

Materiality Assessment: Non‑Material – Positive (high‑grade assay results are encouraging but do not constitute a material development such as a financing or acquisition).