Price Move History
- Daily moves over 5%
- 81 198 sessions, September 2, 2025 to September 2, 2026
- Largest daily move
- +28.9% close of December 3, 2025
- 1-year change
- +46.7% closing prices, September 2, 2025 to September 2, 2026
- 1-month change
- +12.9% closing prices, July 29, 2026 to September 2, 2026
Company Description
Critical One Energy Inc. (OTCQB: MMTLF), formerly Madison Metals Inc., is described as a forward-focused critical minerals and upstream energy company. It is a Canadian exploration company concentrated on critical metals and minerals, with a particular emphasis on antimony and gold at its Howells Lake Antimony-Gold Project and uranium investment interests in Namibia, Africa.
The company is repeatedly characterized in its disclosures as a leading Canadian mining exploration company focused on critical metals and minerals. Its strategy is to power the future of clean energy and advanced technologies by upgrading and creating high-value projects using technical, managerial, and financial expertise. According to multiple news releases, Critical One Energy positions itself to meet rising global demand for critical minerals and metals.
Core projects and exploration focus
The cornerstone asset in Critical One Energy’s portfolio is the Howells Lake Antimony-Gold Project in the Thunder Bay Mining Division of Ontario, Canada, near the Ring of Fire corridor. Company disclosures state that Howells Lake hosts Canada’s largest known undeveloped antimony deposit and that Critical One controls all significant antimony-gold targets over a long strike length on a large land package measured in tens of thousands of hectares.
Historical work at Howells Lake identified antimony-gold mineralization at zones such as the East (V-3) Zone and West Zone. Company news releases describe:
- Historical drilling at Howells Lake East (V-3) intersecting high antimony grades with associated gold mineralization.
- Historical drilling at Howells Lake West intersecting notable antimony and gold values.
- A historical resource of 1.7 million tons at a grade of 1.4% antimony with associated gold mineralization, explicitly noted as non‑NI 43‑101 compliant, with all work needing to be redone before any current resource can be reported.
Critical One Energy emphasizes that all such historical geological and assay information is non‑compliant under NI 43‑101, that parameters used in historical resource estimates are not fully documented, and that the issuer is not treating the historical estimates as current. The company notes that significant new geological mapping and drilling will be required to establish any compliant resource.
Howells Lake Antimony-Gold Project
Company news releases describe Howells Lake as a large-scale antimony-gold system where antimony mineralization is associated with strong alteration and sulphide mineralization. Technical disclosures highlight:
- Alteration zones characterized by strong carbonate and sericite alteration, including green mica, with quartz carbonate veining and sulphides such as stibnite (antimony sulphide), pyrite, pyrrhotite, chalcopyrite, and sphalerite.
- Mineralization in places related to the margins or lower contact of a quartz feldspar porphyritic intrusive at the East Zone.
- Geological and geophysical interpretations that indicate steeply dipping, altered stratigraphy and structural corridors that may host extensions of antimony-gold mineralization laterally and at depth.
Critical One has undertaken and reported on advanced geophysical work, including VTEM airborne magnetic and electromagnetic surveys and detailed modelling. According to company releases, this work has identified:
- Electromagnetic anomalies and modelled conductors extending from known mineralized zones to depth and along strike.
- Clusters of EM anomalies and magnetically low structural corridors interpreted as potential controls on mineralization.
- Numerous additional antimony-gold targets along a long strike length of favourable geology within the company’s claims.
The company has also reported expanding its land position at Howells Lake by staking additional claims after reviewing government soil sample databases. Soil geochemical anomalies in antimony and gold were identified in multiple unexplored areas, prompting a significant increase in the project’s total land package and consolidating what the company describes as all high-priority exploration land in the area.
KCR Gold Project and Slam Gold Zone
Critical One Energy has disclosed the acquisition of the KCR Gold Project, including the Slam Gold Zone, contiguous with its Howells Lake holdings. The company reports that:
- The Slam Gold Zone was discovered through historic drilling of a soil anomaly, with visible gold reported in a single historic drill hole.
- Historic trenching and drilling on the KCR property returned notable gold assay intervals, and the Slam Gold Zone remains untested above, below, and along strike.
- The acquisition gives Critical One 100% control of a key property and contributes to a consolidated land position covering all known gold and antimony occurrences and strongly altered zones in the Howells Lake area.
Company disclosures describe the gold mineralization on the KCR property as related to strong alteration, shearing and felsic intrusive rocks, based on historical reports cited in their news releases. As with Howells Lake, the company notes that this historical information is not NI 43‑101 compliant and that the Qualified Person has not verified the historical data.
Uranium interests and transactions in Namibia
In addition to its Canadian antimony-gold focus, Critical One Energy reports uranium investment interests in Namibia, Africa. The company has entered into agreements with Dark Star Minerals Inc. involving the Khan and Cobra uranium projects in Namibia’s Erongo uranium province. According to company news releases:
- Critical One agreed to divest 100% of its interests in the Khan and Cobra Uranium Projects to Dark Star through staged cash and share payments.
- Once certain value thresholds are met, Critical One is to receive a gross overriding royalty on metals produced from the projects, with a partial buyback option for Dark Star.
- The company later reported holding an equity interest in Dark Star as a significant shareholder, aligning with its stated goal of supporting uranium development in Namibia while focusing its own efforts on Howells Lake.
The company describes Namibia’s Erongo uranium province as a recognized uranium mining jurisdiction and notes that the Khan West Project has been authorized for nuclear fuel extraction by the Namibian Ministry of Mines and Energy, citing Dark Star’s project context in its own news releases.
Corporate positioning and strategy
Across multiple disclosures, Critical One Energy presents itself as a critical minerals and upstream energy company whose mine exploration portfolio is led by antimony-gold exploration potential in Canada and uranium-related interests in Namibia. The company states that it aims to power clean energy and advanced technologies by focusing on high-demand critical minerals such as antimony and by maintaining exposure to uranium through strategic transactions and shareholdings.
Company statements emphasize:
- A focus on the Howells Lake Antimony-Gold Project as a cornerstone asset and as Canada’s largest known undeveloped antimony deposit, based on historical work.
- Efforts to refine its critical metals and minerals mission by divesting direct uranium project ownership while retaining investment exposure and royalties.
- Use of advanced geophysical surveys, geological modelling, and evaluation of historical data to guide exploration programs and target selection.
Regulatory and technical disclosure notes
Critical One Energy’s technical news releases consistently include cautions that much of the geological and assay information referenced is historical in nature. The company notes that:
- The Qualified Persons responsible for technical disclosure have not verified historical data and cannot confirm that it meets current NI 43‑101 standards.
- Historical resource estimates at Howells Lake predate NI 43‑101, lack modern categorization, and cannot be treated as current resources.
- Drill intersections are reported as downhole intervals, with no true widths determined.
These disclaimers are central to understanding the stage of the company’s projects: they indicate that Critical One Energy is in an exploration and evaluation phase, working to reassess and potentially upgrade historical information through new work programs.
Stock listings and former name
Company news releases identify Critical One Energy Inc. as trading under the symbols CRTL on the Canadian Securities Exchange, MMTLF on the OTCQB, and 4EF0 on the Frankfurt Stock Exchange. The company explicitly notes that it was formerly known as Madison Metals Inc.
Stock Performance
CRITICAL ONE ENERGY (MMTLF) closed at $0.7858 on September 2, 2026. Over the past 12 months, the price has gained 46.7%.
MMTLF Metrics & Rankings
Price returns through September 2, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
CRITICAL ONE ENERGY has 10 recent news articles. Of the recent coverage, 7 articles coincided with positive price movement and 0 with negative movement. Key topics include management. View all MMTLF news →
SEC Filings
Financial Highlights
Upcoming Events
20,000m drilling program
CRITICAL ONE ENERGY has 1 upcoming scheduled event. The next event, "20,000m drilling program", is scheduled for December 1, 2026 (in 43 days). Investors can track these dates to stay informed about potential catalysts that may affect the MMTLF stock price.
Short Interest History
Short interest in CRITICAL ONE ENERGY (MMTLF) currently stands at 40.2 thousand shares, up 2.7% from the previous reporting period, representing 0.1% of the float. Since October 2025, short interest has increased by 1362.0%.
Days to Cover History
Days to cover for CRITICAL ONE ENERGY (MMTLF) currently stands at 10.0 days, down 17.5% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since October 2025, the figure has increased by 896%. Across the settlements charted above, it has ranged from 1.0 to 16.7 days.
MMTLF Company Profile & Sector Positioning
CRITICAL ONE ENERGY (MMTLF) operates in the Uranium industry within the broader Energy sector and is listed on the OTC.
Investors comparing MMTLF often look at related companies in the same sector, including GOVIEX URANIUM CL A (GVXXF), WESTERN URANIUM&VANADIUM (WSTRF), NUCLEAR FUELS INC (NFUNF), APPIA RARE EARTHS URANIN (APAAF), and PUREPOINT URANIUM GROUP (PTUUF). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate MMTLF's relative position within its industry.