Rio Grande Resources Ltd · OTC:RGRLF
Rio Grande Resources — Investor Presentation (October 2026)
24 slides from Rio Grande Resources's investor presentation, Oct 1, 2026
Slide 1: Rio Grande Resources
CSE: RGR | OTCQB: RGRLF | FSE: 488 Rio Grande Resources Historical High-Grade District | Modern Exploration | Anticipated Phase 1 Drill Targeting Fall 2026 Investor Presentation riogranderesources.ca
Slide 2: Forward Looking Statement
FORWARD LOOKING STATEMENT The information contained in this presentation and other information furnished by or on behalf of Rio Grande Resources Ltd.(“Rio Grande or Rio” or the “Company”) has been prepared to assist the reader in understanding the business and financial results of the Company for th
Slide 3: Who are We?
Rio Grande Who are We? Resources Rio Grande Resources is a gold-silver exploration company focused on unlocking the district-scale ✓ HISTORICAL potential of the historical Winston Mining District in High-Grade Mining District New Mexico ✓ TODAY Our mission is to transform the historical high-grade M
Slide 4: Project Location Map
PROJECT LOCATION MAP Rio Grande controls the broader Winston Group of Properties within its 173 unpatented BLM mining claims and 2 patented lode mining claims, (for a total aggregate of 175 claims) across +3,500-acre, drill-ready gold-silver property located in the historic Chloride Mining District
Slide 5: Rio Grande Highlights
RIO GRANDE HIGHLIGHTS EARLY EXPOSURE Strategic exposure to high-potential gold and silver projects offers significant discovery upside, complementing core gold holdings. POVERTY CREEK Poverty Creek has become a key focus area after recent work traced multiple mineralized vein systems and defined sev
Slide 6: Winston Group of Properties: High-Grade Mineralization
HIGH-GRADE MINERALIZATION Winston Group of Little Granite North Star Ivanhoe Poverty & Little Emporia & Creek Ivanhoe & Emporia Properties 66.5 g/t gold and 2,940 g/t silver; main vein Wonder Returned samples of up to 35.9 g/t gold and 248 Peak sample results including 46.3 g/t gold Peak values of 2
Slide 7: Geological Highlights
Advancing History to a Modern Opportunity A structurally controlled gold-silver system with multiple emerging target areas Geological Highlights Winston’s exploration story spans more than a century, from high-grade gold- 4 silver mining in the historical Chloride District to modern exploration acro
Slide 8: Gold-silver District-scale Opportunity
Advancing a Potential The Winston Group of Property Highlights Gold-silver 1 2 3 4 District-scale Opportunity EXPANSIVE RICH MINING EXCITING MODERN Rio Grande is reinterpreting the PROPERTY 02 HISTORY 03 GEOLOGY 04 EXPLORATION Winston Group of Properties through a modern exploration lens, integratin
Slide 9: Poverty Creek
POVERTY CREEK Emerging High-Grade Target Corridor at Winston Recent fieldwork has advanced Poverty Creek into a priority target area by connecting high-grade . Property Map with New Results Illustrated surface results with mapped vein corridors and Phase 1 drill targeting as Coloured Triangles. 46.3
Slide 10: 2026 Exploration
2026 EXPLORATION Integrated Exploration Returns Promising District Scale Potential Systematic Exploration Approach 2026 program integrated mapping, sampling, and historic data with 72 . Property Map with New Results Illustrated samples collected across multiple target areas as Coloured Triangles. Hi
Slide 11: 2026 Airborne Geophysics
2026 AIRBORNE GEOPHYSICS Mag Survey Defines Potential Structural Framework and Subsurface Targets Property-Wide Geophysics Identifies New Drill Targets . Property Map with New Results Illustrated Airborne high-resolution magnetic and radiometric survey as Coloured Triangles. program conducted in Spr
Slide 12: Little Wonder and North Star Mines
LITTLE WONDER AND NORTH STAR MINES Rio Expands Land Position in October 2026 and Secures Historical Mines 26 67.1~537 g/t Au +3,500 26.1 g/t Au NEW CLAIMS ACRES ADDED ACRE TOTAL LAND . Property Map with New Results Illustrated PACKAGE in grab samples as Coloured Triangles. Rio expanded the Winston c
Slide 13: Additional Exploration
ADDITIONAL EXPLORATION 2025 Exploration Results Expanding a Multi-Phase System The program released results on June 18, 2025, focused on the Paymaster Fault Corridor and identified several new mineralized . Property Map with New Results veins and confirmed high-grade gold and silver mineralization I
Slide 14: The Winston Property History
THE WINSTON PROPERTY HISTORY Ivanhoe & Emporia and Little Granite Each mine produced high-grade gold and silver during full-time operations over a century ago, underscored by Little Granite producing high value ore in some of its underground shoots The Ivanhoe and Emporia patented mining claims each
Slide 15: The Little Granite Mining Claims History
THE LITTLE GRANITE MINING CLAIMS HISTORY Four claims Comprised of Past-Producing High-Grade Silver-Gold Mine hosted in Tertiary volcanics Each mine produced high-grade gold and silver during full-time operations over a century ago LG-6 (65.6m Borehole) Hit 3.6m @ 1.814 G/T The main vein has been tra
Slide 16: The Ivanhoe Emporia Claims History
THE IVANHOE EMPORIA CLAIMS HISTORY A Past Producing Gold-Silver Mine Comprised of 2 Patented Lode Claims The main shaft has a depth of 384 feet with a 370ft decline Three (3) samples were collected from piles of quartz MINE EXPL TGT AU (opt) AG AU + BASIS OF REFERENCE dump material near the mouth of
Slide 17: 2021 Sample Program
2021 SAMPLE PROGRAM Little Granite, Ivanhoe & Emporia Mines Many high-grade samples were collected under Michael Feinstein, CPG, QP, who visited the Winston Project area on ten separate occasions since October 2020 where he conducted confirmatory sampling of the known historic mines, as well as pros
Slide 18: A Modern Exploration Model
EXPLORATION WORKFLOW A Modern Exploration Model Building targets from surface evidence to drill-ready locations for Rio’s first anticipated Phase 1 drill program 01 Surface 02 Structural 03 Airborne 04 Integrated 05 Phase 1 Sampling Mapping Geophysics Targeting Drilling Mapping of vein Magnetic and
Slide 19: Capitalization & Balance Sheet
CAPITALIZATION & BALANCE SHEET Share Structure CSE:RGR TICKER: OTCQB: RGRLF Share Price as of October 16, 2026 $.26 Share Price Range(1) C$.15 – C$.56 Basic Shares Outstanding(2) 59.55M Options(2) 1.97M RSUs(2) 1.58M Warrants(2) 11.4M FD Shares Outstanding(2) 61.76 ~80.35% Retail Market Capitalizati
Slide 20: Management, Directors & Team
MANAGEMENT, DIRECTORS & TEAM Technical Team Gareth Flitton, CPG., QP., Geoscientific Advisor Jason Barnard Curtis Bouwman Christina Barnard CEO and Director Chief Financial Officer President Patrick Mullinger, G.I.T. Geologist IV., Geoscientific Advisor Ray Strafehl Richard Silas, VP of Corporate Ch
Slide 21: Gold Industry Overview
GOLD INDUSTRY OVERVIEW Strong Macro-Economic Trends is Driving Gold to All-Time Highs Gold has a variety of uses, including jewelry, electronics and as a store of value. Central banks have been active buyers of gold, providing consistent buying pressure purchasing a record 992 tons in 2024 and 863 t
Slide 22: Silver Industry Overview
SILVER INDUSTRY OVERVIEW Silver Reached All Time Highs in 2026 Silver demand could structurally outstrip supply, as demand for the industrial metal continues to grow Silver has preformed exceptionally well surging to an all time high of USD $121.62 per ounce in January 2026 Silver pricing is being d
Slide 23: Why Invest? The Opportunity
WHY INVEST? Historic proof, new targets and a clear path toward drilling High-Grade Potential District Poverty Creek Emerging The Opportunity Past-producing Ivanhoe, Recent work has advanced Emporia, Little Granite, Poverty Creek into a high- North Star and Litter priority target within a Wonder Min
Slide 24: Advancing an Historical High-Grade District Into a Modern Discovery Opportunity
CSE: RGR | OTCQB: RGRLF | FSE: 488 RIO GRANDE RESOURCES Advancing an Historical High-Grade District Into a Modern Discovery Opportunity Winston Gold-Silver Project | New Mexico Historical high-grade district | Emerging targets | Anticipated Phase 1 Drill Program Contact Jason Barnard, CEO & Director
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