Borealis Mining Company Limited · TSXV:BOGO
Borealis Mining — Investor Presentation (December 2025)
21 slides from Borealis Mining's investor presentation, December 2025
Slide 1: Corporate Presentation
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Corporate Presentation December 2025
Slide 2: Forward-Looking Statements and Advisories
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Forward-Looking Statements and Advisories Certain statements in this presentation (this “Presentation”) that are not statements of historical fact, including statements relating to each as more particularly described herein, may constitute “forward-looking stateme
Slide 3: Slide 3
Slide 4: Investment Highlights
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Investment Highlights SANDMAN Top Rated Mining 100% Owned Mine & ADR Facility Jurisdiction The 100% owned Borealis mine is fully equipped for present mine operations and future expansion: access, Nevada is the world’s top Elko workforce, power, water and permits.
Slide 5: Corporate Structure & Transaction Terms
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Corporate Structure & Transaction Terms Common Shares 131,337,978 10% INSIDERS Warrants 9,927,175 ROB MCEWEN Broker Warrants 209,566 35% 14% ERIC SPROTT Options/RSUs 7,188,800 INSTITUTIONS Fully Diluted 148,663,519 10% RETAIL Market Cap (Dec 8) ~$210mm CAD 31% Tra
Slide 6: Board of Directors and Management
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Board of Directors and Management Board of Directors Bob Buchan Greg Gibson Richard Patricio Christina McCarthy Kelly Malcolm CHAIRMAN Management Kelly Malcolm Andreas Lisanna Lewis Iain Campbell Jen Thor PRESIDENT & CEO Steckenborn, COO CFO VP EXPLORATION CORPORA
Slide 7: Borealis Project
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Borealis Project Permitted Heap-Leach Significant In-situ Permitted Mine, Operations High-Grade Gold Mine & Processing *Historical Resources – -ready Heap Leach Pad, Exploration Potential Facility in Nevada OPEN FOR EXPANSION ADR, & Mobile Fleet ▪ High-sulfidation
Slide 8: Location and Property - Borealis
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Location and Property - Borealis 2 Hr 25 min 2 hour drive from Reno, 25 min drive from town of Nevada Hawthorne, NV #1 Accessible Nevada #1 on Fraser Highway accessible Institute Mining Investment year-round Attractiveness Index for 2022 14,600 acre Infrastructure
Slide 9: Borealis Mine Highlights
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Borealis Mine Highlights Historic Resource Discovered in 1978, initial production 1981- 1990 of ~500,000 oz at 2.02 g/t Au from 8 near- surface open-pit oxide deposits Recent Production Minor production recommenced in 2011-2013 & 2021-2022 for ~125,000 oz – First
Slide 10: Processing & Refining
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Processing & Refining ▪ Oxide & transition ore mined and crushed to 5/8” then stacked on conventional cyanide-agglomerated heap pads. ▪ Borealis uses an ADR (adsorption, desorption, and refining) plant to generate final doré on site ▪ Doré processed and refined of
Slide 11: Actively Processing Gold
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Actively Processing Gold Crushing Spread – August 2025 Gold and Silver Dore Bars from 2025 11 11
Slide 12: Exploration Potential
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Exploration Potential ▪ No drilling on the project since 2012 ▪ Two known styles of mineralization ▪ Surface oxides (known to extend up to 1,000 feet) ▪ High-grade high-sulfidation epithermal sulfides at depth – significant geophysical anomalies ▪ Numerous oxide t
Slide 13: Existing Data
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Existing Data Areas of Historic Mining & Resource ▪ No regional exploration on the project since 2008 ▪ Numerous undrilled high grade grab sample targets ▪ Numerous undrilled high priority geophysical targets from historical CSAMT, IP, Mag, & EM surveys ▪ Recently
Slide 14: High Grade Resource Expansion Potential
TSXV: BOGO | FSE: L4B0 | OTC: BORMF High Grade Resource Expansion Potential Oxide Target Sulfide Target These drill results are exploration targets and are conceptual in nature. There has been insufficient exploration to define a current mineral resource, and it is uncertain whether further drilling
Slide 15: Geology & Mineralization
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Geology & Mineralization ▪ High-sulfidation epithermal system over large area (7 x 3 miles) hosted in Tertiary volcanic rock package ▪ Gold hosted by upper & lower Miocene pyroclastic rocks/tuffs, andesite and dacite flows & breccias, and laharic breccias ▪ Known
Slide 16: Sandman Highlights
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Sandman Highlights Near-Term Production Exceptional Economics SANDMAN Potential 2023 PEA for Sandman shows PEA completed in 2023 presents US$121M 6% NPV at US$1,800 gold. ~35-40k oz/year production profile. Low Capex and short time to payback. Elko Existing Plan o
Slide 17: Sandman PEA
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Sandman PEA ▪ Exceptional IRR and NPV from Scoping economics. At US$1,800 per oz. gold, the 2023 PEA reports: Turquoise Ridge Sleeper ▪ US$121M NPV@6% (post-tax) Twin Creeks ▪ 81% IRR (post-tax) Midas ▪ 1.3 yr payback period Winnemucca Gold ▪ Low capital intensity
Slide 18: Sandman Highly Sensitive to Gold Price
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Sandman Highly Sensitive to Gold Price NPV@6% IRR Gold Price Strong leverage to (after-tax) (after-tax) the price of gold $1,600 $70.5M 55.1% At USD$3,000/oz $1,800 $121.0M 80.9% NPV is $2,000 $171.5M 104.7% USD$424.1mm and IRR is $2,200 $222.0M 127.6% 215.2% $2,4
Slide 19: Sandman Exploration Potential
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Sandman Exploration Potential ▪ Significant upside given Sandman's considerable underexplored nature and massive land package ▪ All deposits open for expansion, with only one feeder currently identified ▪ Gravity image shows significant gold bearing in the Northwe
Slide 20: Big Balds Project
TSXV: BOGO | FSE: L4B0 | OTC: BORMF Big Balds Project Carlin ▪ Located on structural intersection of the Trend renowned Carlin & Bida Trends in Nevada ▪ Excellent access & logistics ~90 Bida minutes from mining hub of Elko, NV Trend ▪ Prospective for three Bald Mountain world-class styles of mineral
Slide 21: Contact
TSXV: BOGO | FSE: L4B0 | OTC: BORMF CONTACT Kelly Malcolm, CEO info@borealismining.com 289-371-3371 401-217 Queen Street West, Toronto, Canada, M5V 0R2 BorealisMining.com
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