Gr Silver Mining Ltd. · TSXV:GRSL
Gr Silver Mining — Investor Presentation (October 2025)
26 slides from Gr Silver Mining's investor presentation, October 2025
Slide 1: Silver Discovery and Development in Mexico
SILVER DISCOVERY AND DEVELOPMENT IN MEXICO CORPORATE PRESENTATION OCTOBER 2025 TSXV | GRSL OTCQB | GRSLF DEU | GPE
Slide 2: Cautionary Statements
CAUTIONARY STATEMENTS This presentation contains “forward-looking statements” within the meaning of Canadian securities laws. Where For a more detailed discussion of risks and other factors that might impact future looking a forward-looking statement expresses or implies an expectation or belief as
Slide 3: A Two-Pronged Approach: Exploration & Development
A TWO-PRONGED APPROACH: Exploration & Development GR Silver Mining Today: ● FULLY FUNDED with CAD$13.8M to execute the Company’s GR SILVER MINING LTD. RESOURCE GROWTH 15-month business plan, no debt ● 100%-OWNED RESOURCE of 85 Moz AgEq Indicated & 49 Moz AgEq Inferred… and GROWING ● ROBUST GEOLOGICA
Slide 4: Growth Performance: Delivering Shareholder Results & Increased Liquidity
GROWTH PERFORMANCE: Delivering Shareholder Results & Increased Liquidity $GRSL vs $SIL (Global X Silver Miners ETF) $GRSL +92.11% 2025 Chart Sept 30th, 2025 CAPITAL STRUCTURE Market Cap C$146M (basic) Shares O/S 430M Warrants 90M (avg C$0.19) Cash C$13M June - Sept 2025: Top 10 Volume Trader on TSX.
Slide 5: District-Scale Resource Growth & Development Opportunity
DISTRICT-SCALE RESOURCE GROWTH & DEVELOPMENT OPPORTUNITY Ongoing Step-Out Drill Campaign Resource Extension N GR SILVER MINING LTD. | CORPORATE PRESENTATION | OCTOBER 2025 5
Slide 6: San Marcial: Primary Silver Discovery - Largely Untested
SAN MARCIAL: Primary Silver Discovery - Largely Untested Plomosas Mine Area Permitted Past Producer Ag Au Pb Zn Underground Mine 66 M oz Ag Eq San Marcial Area San Marcial Area SE 68 M oz Ag Intrusive Related A NW Extension Extension Anomaly Parallel Breccia Zone Target 80% Untested A' Primary Silve
Slide 7: San Marcial Area: Discovery - Geological & Geophysical Section
SAN MARCIAL AREA: Discovery - Geological & Geophysical Section DISCOVERY SECTION Knowledge for Exploration and Resource Growth in New Areas ● Wide, silver-dominant hydrothermal breccias occurring at shallow depths. ● Multi-disciplinary research & supporting step-out drilling. ● Currently drilling st
Slide 8: Resource Expansion: San Marcial Step-Out Drilling
RESOURCE EXPANSION: San Marcial Step-Out Drilling LONGITUDINAL SECTION SAN MARCIAL RESOURCE AREA EXPANSION GR SILVER MINING LTD. | CORPORATE PRESENTATION | OCTOBER 2025 8
Slide 9: Plomosas Bulk Sampling Test Mining Update
PLOMOSAS BULK SAMPLING TEST MINING (“BSTM”) UPDATE Past Producing Plomosas Underground Ag-Au-Pb-Zn Mine with Existing Bulk Mineable Stopes • Ongoing engineering review targeting commencement of a BSTM program early in 2026 • Metallurgical studies in progress • 21 underground areas accessible for BST
Slide 10: Value Creation Road Map: Resource Growth & Project Development
VALUE CREATION ROAD MAP: Resource Growth & Project Development Delivered H1 2026 H2 2026 Dec 2026 Delivered Sept 2025 Dec 2025 Permitted Plomosas Underground Mine: Plomosas Project: Resource Update & PEA Phase 2 Potential San Marcial Area - Permitted Plomosas July 2025 Plomosas Mine: Underground Min
Slide 11: Team Track Record: Discovery, Project Development & Global Mining M&A
TEAM TRACK RECORD: Discovery, Project Development & Global Mining M&A BOARD OF DIRECTORS MARCIO FONSECA PRESIDENT & CEO ERIC ZAUNSCHERB Executive Chair ERIC ZAUNSCHERB EXECUTIVE CHAIR MARCIO FONSECA President & CEO ROBERT PAYMENT MINES CHIEF FINANCIAL OFFICER BRENT MCFARLANE Director DANIEL SCHIEBER
Slide 12: Capital Structure
CAPITAL STRUCTURE Basic Market Capitalization @ $0.34 C$146M $GRSL.V 1-Year Chart (September 30th, 2025) Shares Issued & Outstanding 430M Warrants 90M (average weighted price C$0.19) Options 10M $0.20 (average weighted price C$0.26) PSUs + DSUs 6.5M Average Daily Liquidity (Shares) 7.6M Ownership -
Slide 13: Growth Plan
GROWTH PLAN VALUATION RERATING OPPORTUNITY GR SILVER MINING LTD. RESOURCE GROWTH FULLY FUNDED TO GROW RESOURCES GR SILVER MINING LTD. | CORPORATE PRESENTATION | OCTOBER 2025 13
Slide 14: Investment Highlights
INVESTMENT HIGHLIGHTS Silver Discovery Opportunity in Mexico - Targeting bulk mineable low-opex/capex silver-primary deposits on the SW edge of the Sierra Madre Occidental Mexico - Knowledge & 3D data modelling-driven exploration model Significant Exploration Upside - 80% of intrusive-related geophy
Slide 15: Contact Us
EXPLORE OUR PROJECTS ON CONTACT US Investor Relations: Phone +1 236 270 2057 info@grsilvermining.com 409 Granville Street, 15th Floor Vancouver, BC, V6C 1T2 TSXV | GRSL OTCQB | GRSLF DEU | GPE GRSilverMining GR Silver Mining GR Silver Mining Ltd.
Slide 16: Appendix
APPENDIX 16
Slide 17: Resource Growth Potential – Discoveries – San Marcial
RESOURCE GROWTH POTENTIAL – DISCOVERIES – SAN MARCIAL • Two distinct mineralized zones, spatially associated and controlled by a NE-SW structural trend that intersects major NW-SE regional structures • Geological modelling suggests that the Resource Area represents the upper portion of a much larger
Slide 18: Resource Growth Potential – Discoveries – San Marcial
RESOURCE GROWTH POTENTIAL – DISCOVERIES – SAN MARCIAL • Well-developed quartz-calcite stockwork epithermal-style zone, confirming the potential of the NE structural trend to host high-grade gold-bearing mineralization in the footwall beneath the Resource Area • The anomalous Cu and W grades establis
Slide 19: Resource Growth Potential – Discoveries – San Marcial
RESOURCE GROWTH POTENTIAL – DISCOVERIES – SAN MARCIAL • SMS25-09 intersected 75 m @ 293 g/t AgEq, including multiple intervals exceeding 1,000 g/t AgEq. • The hole tested 3D geophysical anomalies and successfully confirmed continuity of the main high-grade mineralized structures at least 100 m beyon
Slide 20: Plomosas Project NI 43-101 Resource Statement
PLOMOSAS PROJECT NI 43-101 RESOURCE STATEMENT GR SILVER MINING LTD. | CORPORATE PRESENTATION | OCTOBER 2025 20
Slide 21: Resource Growth Opportunity
RESOURCE GROWTH OPPORTUNITY DELINEATION OF HIGH-GRADE ZONES IN BULK MINEABLE STYLE SILVER DEPOSITS SAN MARCIAL MODEL NI 43- PLOMOSAS MODEL NI 43-101 101 Ag ANOMALY – SURFACE 20 ROCK SAMPLING Source: Arseneau and Crowie (2023). Assumptions for Resource Reporting the San Marcial, Plomosas Mine, and Sa
Slide 22: Plomosas Mine Historical Production (1986 – 2000)
PLOMOSAS MINE HISTORICAL PRODUCTION (1986 – 2000) As published in National Instrument (NI) 43-101 2023 Technical Report and Mineral Resource Update for the Plomosas Project, Gilles Arseneau, P.Geo., May 3, 2023 GR SILVER MINING LTD. | CORPORATE PRESENTATION | OCTOBER 2025 22
Slide 23: Historical Plomosas Mine, an Opportunity
HISTORICAL PLOMOSAS MINE, AN OPPORTUNITY INITIATIVE TO CAPTURE VALUE ➢ Existing infrastructure and fully owned land. ➢ Mining licences, permits, agreements in place to operate mine and future plant. ➢ Conservative resource estimation approach under review with updated geological modelling. ➢ Discove
Slide 24: Successful BSTM Program at the Historical San Juan Mine
SUCCESSFUL BSTM PROGRAM AT THE HISTORICAL SAN JUAN MINE INITIATIVE TO CAPTURE VALUE ➢ In March 2024, the Company announced a Bulk Sampling Test Mining (“BSTM”) program. ➢ From January to September 2024, 20,620 t of material were sampled and 20,430 t processed in a third-party owned mill nearby. ➢ 42
Slide 25: Team Track Record: Discovery, Project Development & Global Mining M&A
TEAM TRACK RECORD: Discovery, Project Development & Global Mining M&A Technical experience to evaluate exploration and operational assets from exploration MARCIO FONSECA stage to mining operations. Senior roles include Echo Bay Mines, SilverCrest Mines, PRESIDENT & CEO Phelps Dodge, and Vale in Lati
Slide 26: Board of Directors
Strong History of Discovery / Development BOARD OF DIRECTORS & Global Mining M&A ERIC ZAUNSCHERB Previously served as Managing Director, Research – Metals & Mining Analyst at Canaccord Genuity where he Executive Chairman coordinated the firm’s global mining equity research team and is a Canadian geo
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