Element One Advances Twin Sisters Magnesium Opportunity Following Assays of Up To 28.46% Magnesium

Element One reports high magnesium assays but remains at an early, pre-commercial stage.

What the company is saying

Element One Hydrogen & Critical Minerals Corp. is highlighting assay results from its Twin Sisters magnesium project in Washington State, reporting eight olivine sand samples with magnesium grades between 26.39% and 28.46% and nickel concentrations from 2,660 to 3,305 ppm. The company emphasizes that these results provide a promising basis for recovery testing and positions the project as a potential large-scale U.S. feedstock source. President and CEO Brad Kitchen frames the narrative around the potential to develop a new domestic supply of magnesium and other minerals, with Revora Materials Inc. tasked to evaluate mineral recoveries using the IonMet electrochemical platform. The announcement also details a memorandum of understanding with Millbank Materials for the right to purchase up to 50,000 tonnes of material annually, with an option to double that amount. In addition to operational updates, the company proposes to reduce the exercise price of 3,000,000 warrants from $0.25 to $0.15 per share, subject to CSE approval, and discloses an additional subscription for 200,000 $0.10 units. The tone is optimistic but acknowledges that recovery rates, product quality, and economic viability are not yet established, and no decision has been made to proceed to pilot or commercial scale.

What the data suggests

The disclosed assay results confirm high magnesium content in the Twin Sisters samples, with eight samples ranging from 26.39% to 28.46% magnesium and nickel concentrations between 2,660 and 3,305 ppm. These figures are robust for initial exploration and suggest the material is magnesium-rich, but the sample set is limited and may not represent the broader deposit. The company has secured non-binding rights to purchase up to 50,000 tonnes of material annually, with an option to increase to 100,000 tonnes, but this is not a production commitment or forecast. No mineral resource or reserve has been established, and there are no disclosed recovery rates, product specifications, processing costs, or economic assessments. The proposed reduction in warrant exercise price from $0.25 to $0.15 per share affects 3,000,000 warrants, none of which have been exercised, and is subject to CSE approval. The issuance of 200,000 $0.10 units adds a minor capital injection. Overall, the data supports the presence of magnesium and nickel but provides no evidence of economic viability or near-term cash flow.

Analysis

The announcement presents positive assay results (magnesium grades up to 28.46%) and outlines a memorandum of understanding for potential feedstock access, but all commercial and operational benefits remain unproven and long-dated. The majority of key claims are forward-looking, including mineral recovery rates, product quality, economic viability, and the possibility of a pilot or commercial facility. No mineral resource or reserve has been established, and no recovery or economic data is disclosed. The language around 'potential U.S. feedstock at scale' and 'foundation for a pilot program' inflates the narrative relative to the actual evidence, which is limited to eight assay results from representative samples. The capital intensity flag is triggered by the scale implied in the MOU and the discussion of future pilot/commercial operations, with no immediate earnings or production impact. The gap between narrative and evidence is moderate: while the technical data is specific, the commercial pathway is entirely aspirational at this stage.

Risk flags

• ●The project remains at an early exploration stage, with no mineral resource or reserve established and only eight samples analyzed; this limits confidence in the scalability or consistency of the reported grades.
• ●Economic viability is entirely unproven, as there are no disclosed recovery rates, processing costs, or product quality data; any assumptions about commercial outcomes are speculative at this point.
• ●The memorandum of understanding with Millbank Materials provides access to feedstock but is not a binding supply or offtake agreement, so there is no guarantee of material availability or pricing.
• ●The proposed reduction in warrant exercise price is subject to CSE approval and could result in increased dilution if exercised, but none of the 3,000,000 warrants have been exercised to date.
• ●The company's intention to work with Columbia University on natural hydrogen generation is at an early research stage, with no results or timeline disclosed, adding further uncertainty to any value from this avenue.

Bottom line

Element One's update confirms high magnesium and nickel grades in limited Twin Sisters samples and secures non-binding rights to significant feedstock volumes, but the project remains pre-resource and pre-economic assessment. No recovery, cost, or product quality data is available, and the company has not committed to a pilot or commercial facility. The warrant repricing and new unit issuance are minor corporate actions with no immediate operational impact. The narrative is aspirational, with all commercial outcomes dependent on future recovery testing and studies. Investors should treat this as an early-stage technical update rather than a near-term value catalyst. The most important takeaway is that while the grades are promising, the path to commercial production is unproven and long-term.

Announcement summary

(CSE:EONE) Element One Hydrogen & Critical Minerals Corp. is advancing its Twin Sisters magnesium opportunity in Washington State after reporting assays of up to 28.46% magnesium. Eight representative olivine sand samples from Millbank Materials' quarry were sent to Revora Materials Inc. in New York for evaluation of potential magnesium, nickel, and other mineral recovery. The samples returned magnesium grades ranging from 26.39% to 28.46% and nickel concentrations between 2,660 and 3,305 parts per million, as announced on September 22, 2026. The company holds a memorandum of understanding with Millbank Materials, granting the right to purchase up to 50,000 tonnes of material annually, with an option to increase to 100,000 tonnes. The next milestone is to determine mineral recoveries, product quality, and commercial viability. Brad Kitchen, President and CEO of Element One, stated that the assays confirm the material is magnesium-rich and that the agreement provides a potential U.S. feedstock source at scale. Revora will characterize the sand and assess its response to the IonMet™ electrochemical platform, which is designed to generate and recycle chemicals used in mineral extraction. Planned work includes examining mineral release and separation, measuring potential magnesium and nickel recoveries, and evaluating product forms, purity, processing inputs, and costs. Element One will also assess the recoverable value of other components. The results will guide further testwork and any future pilot program. Recovery rates, product specifications, processing costs, and economic viability have not yet been established, and no decision has been made to construct a pilot or commercial facility. Element One also intends to work with Columbia University to investigate natural hydrogen generation from the same ultramafic material through accelerated serpentinization, with this research at an early stage. The assays reflect limited samples and may not represent all Twin Sisters material; no mineral resource or reserve has been established. The volumes under the Millbank MOU are potential feedstock access, not a production forecast. The company proposes to reduce the exercise price of 3,000,000 warrants issued on August 10, 2026, from $0.25 to $0.15 per common share, effective September 25, 2026, with none of the warrants exercised as of this release. The warrant amendments are subject to CSE acceptance. Further to its September 9, 2026 announcement regarding the LIFE placement, the company had an additional subscription for 200,000 $0.10 units at $0.10, which will be issued today.

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