Pacific Ridge files NI 43-101 report for Kliyul

Executive Summary

• Pacific Ridge Exploration Ltd. filed a NI 43‑101 technical report for the Kliyul copper‑gold project, announcing an inferred mineral resource of 334.1 Mt at 0.33 % CuEq (2.42 M lb CuEq).
• The estimate includes 1.11 M lb copper, 2.74 Moz gold and 10.22 Moz silver, with the resource open for expansion in multiple directions and at depth.
• The report details estimation methodology, price assumptions, recovery rates, and confirms that all work was performed/approved by qualified persons under NI 43‑101.

Key Details

• Inferred Resource (KMZ): 334.1 Mt @ 0.33 % CuEq → 2.42 M lb CuEq (1.11 M lb Cu, 2.74 Moz Au, 10.22 Moz Ag).
• Resource Geometry: Approximately 760 m E‑W × 600 m N‑S × 650 m vertical depth; open to the north, west, east, southeast and at depth.
• Drilling Activity (2025): Two infill holes totaling 1,287 m completed at KMZ; assay results pending.
• Historical Drilling Highlights:
• 2021 – 316.7 m @ 0.79 % CuEq (1.17 g/t AuEq).
• 2022 – 328.0 m @ 0.64 % CuEq (0.95 g/t AuEq).
• 2023 – 305.5 m @ 0.59 % CuEq (0.87 g/t AuEq).
• 2024 – Hole KLI‑23‑069 delivered 45 m @ 0.58 % CuEq (0.86 g/t AuEq) at 584 m depth, deepest mineralized interval to date.
• Exploration Investment: > $15 M invested and > 20,000 m drilled since 2020 on the 100 % owned Kliyul project (~90 km²).
• Infrastructure Proximity: ~8 km to Omineca Resource Road; adjacent to a 230‑kV transmission line.
• Estimation Methodology: HxGN MinePlan 3‑D, ordinary kriging on 20 × 20 × 20 m blocks within a 0.1 g/t Au probability shell; outlier restriction applied (gold > 4.5 g/t, Cu > 1 %, Ag > 10 g/t).
• Economic Assumptions (Base‑Case Pit Shell):
• Metal prices: $2,600/oz Au, $4.60/lb Cu, $30/oz Ag.
• Recoveries: 80 % Cu, 65 % Au, 65 % Ag.
• Costs: $3.50/t mining, $7/t processing, $3/t G&A (CAD).
• Pit slope: 45°. Sensitivity runs performed for Au $2,000–$3,200/oz, Cu $4.10/lb, Ag $24/oz.
• Qualified Persons:
• Danette Schwab, P.Geo., VP Exploration – QP for technical information.
• Susan Lomas, P.Geo., Lions Gate Geological Consulting – QP for resource estimate (with assistance from Bruce Davis, PhD).
• LGGC audit confirmed drill‑hole database quality and QA/QC adequacy.
• Metallurgical Assumptions: Copper recovery 84 %, gold 70 %, silver 65 % (based on analog projects Kemess Underground, Mount Milligan, Red Chris).

Notable Quotes

(No direct quotes were provided in the release.)