Murchison Minerals Intersects High-Grade Copper-Zinc Mineralization in Backpack Drillholes at BMK Deposit - Diamond Drill Program To Commence Early October

Executive Summary

• Murchison Minerals commenced its 2025 BMK Exploration Program, completing six backpack drillholes that intersected near‑surface high‑grade copper‑zinc mineralization (assays pending).
• Surficial mapping expanded the known strike length of the BMK Deposit to ~745 m and identified additional high‑grade outcrops.
• A diamond drilling campaign is scheduled for October–November 2025 to test near‑surface extensions, followed by 3D geological modeling in Q4 2025.

Key Details

• Program Phases – Phase I (Aug‑Oct): mapping & backpack drilling; Phase II (Oct‑Nov): diamond drilling; Phase III (Nov‑Dec): 3D modeling and data compilation.
• Backpack Drilling Results – Six drillholes (BP‑BM‑25‑001, NT07221607, NT07231612, NT08161605, NT08161739, NT08171508) intersected copper‑zinc mineralization; core lengths ranged 0.30–2.52 m; assays are pending.
• Surficial Mapping – High‑grade Cu‑Zn mineralization identified in outcrops over a 745 m strike length, expanding the deposit’s surface footprint.
• Upcoming Diamond Drilling – Planned to commence early October 2025 targeting shallow extensions of the BMK Deposit; drill program will focus on near‑surface targets defined by Phase I results.
• Resource Context – The 2018 NI 43‑101 resource estimate (effective 4 Sept 2018) lists 2.1 Mt indicated and 7.6 Mt inferred resources with average grades of 0.69 % Cu, 7.08 % Zn, 39.6 g/t Ag, 0.49 % Pb, 0.23 g/t Au (indicated) and lower grades for inferred material.
• Technical Verification – Resource estimate prepared by QP Finley Bakker, P.Geo.; metal price assumptions: $4.59/lb Cu, $1.31/lb Zn, $0.91/lb Pb, $42.24/oz Ag, $3,657.85/oz Au (Sept 2025).
• Corporate Update – Cancellation of 523,250 incentive stock options (exercise price $1.60‑$2.70) on Oct 1 2025; surrendered voluntarily for no consideration.
• Quotes – CEO Troy Boisjoli highlighted the program as a “pivotal point” in the company’s revitalization and noted new investment from HCC Holding Ltd.; VP Exploration John Shmyr emphasized the value of backpack coring and beep‑mat surveys in revealing sub‑cropping sulphides.
• Next Steps – Systematic prospecting of high‑priority anomalies across 859 km² claims; design of focused near‑surface drill program; integration of mapping, geophysical data, and pending assay results into a 3D model for refined targeting.

Notable Quotes

“Murchison Minerals' 2025 BMK Exploration Program is a pivotal point in the Company's revitalization strategy… The BMK VMS Project … is one of – if not the most – advanced exploration stage base metals projects in Saskatchewan.” – Troy Boisjoli, President & CEO

“Our backpack drill cores confirm copper‑ and zinc‑bearing mineralization at multiple points along the deposit. The shallow, high‑grade exposures validate our thesis that the upper portion of BMK requires additional drilling and is primed for expansion.” – John Shmyr, VP Exploration