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NORTH AMERICAN ANTIMONY

BUILDING A NORTH AMERICAN ANTIMONY SOURCE

Critical One Energy is advancing Howells Lake, a district-scale antimony-gold project in Ontario. Near-surface high-grade material offers a fast path to market, over a larger antimony-gold system with long-term mine potential.

It is backed by an Ontario exploration permit, an agreement with Eabametoong First Nation, a funded 2026 program, and a team with discovery, capital markets, and U.S. defense experience.

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Large metallic vault door open, revealing a shining silver ore rock inside, surrounded by dark rocky terrain.

"The high-grade antimony results to date show a strong, continuous zone broadening at depth. The goal now is to evaluate Howells Lake's grade, scale, and relevance to Western antimony supply chains."

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Duane Parnham

Founder & CEO

our mission

Critical One is working to help secure North America's antimony supply. We are advancing the Howells Lake antimony-gold district through modern drilling and technical work, and testing whether it can become a source the continent can rely on.

31,074 ha

District Under Control

Critical One controls 31,074 ha across 1,529 claims, with room to test the historic East Zone and priority antimony-gold targets across one consolidated district.

30 km

High Priority Targets

Howells Lake covers about 30 km of priority antimony-gold targets, giving the team multiple zones to test beyond the high-grade core.

300x200m+

Modern Antimony Footprint

Modern drilling has intersected antimony across more than 300 metres of strike, from near surface to approximately 200 metres below surface, with the system open at depth.

Milestones

From Historical Discovery to Modern Proof

A short history of how Critical One secured, permitted, and drilled Howells Lake, up to today's high-grade results.

Dec 2024

New Identity, Same Vision

Madison Metals rebrands as Critical One Energy, aligning the company around critical minerals and the Howells Lake antimony-gold opportunity.

Dec 2024

Howells Lake Acquired

Company signs LOIs to acquire 100% interest in a 13,990 ha, 697-claim antimony-gold project in Ontario’s Hemlo-Ring-of-Fire region .

May 2025

High-Grade Antimony Confirmed

Historic data review reveals up to 75% Sb within 5.37% Sb over 8.35 m, with associated gold, establishing scale and grade potential.

Aug 2025

Land Package Expanded by 67%

Critical One expands the land package to 24,887 ha after identifying additional priority antimony-gold targets.

March 2026

Permitted, Funded, and Drilling

Ontario permit received, EFN agreement signed, and Phase I drilling begins to test the historic East Zone and priority targets.

May 2026

Exceptional Antimony Grade Confirmed

Hole 6 returns 8.0 m of 42.2% Sb, including near-pure stibnite, confirming high-grade antimony in modern core.

August 2026

Antimony Footprint Extended

Hole 16 extended the antimony footprint about 70 m northeast, returning 31.5 m at 4.9% Sb, including 4.0 m at 21.2% Sb, plus 17.0 m at 1.3 g/t gold.

Leadership

Operators With Discovery, Capital, and Defence Experience

Our team brings discovery experience, capital markets discipline, technical oversight, and defence-sector relationships to a high-grade Ontario antimony-gold project now in active drilling.

Board of directors

Duane Parnham

Chairman

Founder and largest shareholder with more than $1.5B in prior value creation, including the $730M sale of UNX Energy and the growth of Forsys Metals to an $860M market cap.

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Chet Idziszek

Independent Director

Original Howells Lake discovery geologist and award-winning discovery geologist tied to Eskay Creek and Cobre Panama. Brings direct continuity from the original discovery to today’s drill program.

Dr. Roger Laine, PhD

Independent Director

Geological engineer with 40+ years across copper, gold, uranium and advanced reserve modeling; former VP Exploration at Amok/COGEMA, bringing rigorous geo-statistics and global project leadership.

Shawn Parnham, CPA, CMA

Independent Director

Seasoned finance executive and board member with deep experience in capital strategy, M&A, integrations, and risk, keeping governance tight as the company scales.

management

Duane Parnham

CEO

Execution-focused builder with prior major exits. Leads capital, people, and partnerships as Critical One advances Howells Lake through modern drilling.

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Robert Suttie

CFO

25+ years in public company finance; President of Marrelli, specializes in disclosure, reporting, and capital access for TSX/TSXV/CSE juniors, ensuring clean audits and funding readiness.

Matthew Trenkler, PhD, P.Geo

Chief Geological Officer

Professional geologist with Ontario greenstone experience, including Wesdome’s Eagle River and IAMGOLD’s Côté Gold district. Leads the technical plan to test grade, continuity, and scale at Howells Lake.

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Alexander Roberts, MSc

Digital Strategy

Capital-markets digital strategist focused on investor awareness, market education, and digital engagement around Critical One’s antimony story.

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Griffin Gigliotti

Business Development

Research-driven deal support from market intel to modeling; builds relationships and pipelines that convert technical progress into institutional interest.

Wafae Ben bouazza

Corporate Secretary

Capital-markets operator who aligns governance, filings, and transaction readiness. Brings cross-listing and advisory experience from Venex Capital globally.

advisors

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Bruce Durham, P.Geo

Qualified Person ("QP")

Canadian geologist with more than 40 years of experience, including work tied to the Hemlo discovery. Oversees technical disclosure quality as the company’s independent Qualified Person.

Don McKinnon

CTO

Ontario prospector with deep Hemlo-camp lineage; helped take Liberty Mines to production and brings decades of practical discovery know-how from target generation through development.

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Peter Rebmann

European Consultant

Mining specialist since 1984 combining exploration insight with EU capital access. Founder of Precious Metals Investments; has helped raise $550M+ and expand market visibility for North American juniors.

General (Ret) Charles A. Flynn

Strategic Advisor

Retired four-star U.S. Army General with 39 years of service, including command of U.S. Army Pacific and senior Pentagon roles in operations, plans and training; brings executive-level U.S. government and defence relationships and firsthand strategic insight into defence supply chains to support and advance Critical One's critical minerals positioning.

Adam Bello

Investor Relations

IR and media veteran with 25+ years of experience across North America and the UK. Helps turn company milestones into investor, analyst, and media awareness.

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