An Infrastructure Materials & Strategic Minerals Company
Qualified Technical Personnel
Environmental Minerals Inc. relies on independent, highly credentialed professionals to evaluate and certify the geology, resources, and performance characteristics of our Dunmovin natural pozzolan deposit.
Frederic C. Johnson, P.G.
Mr. Johnson is a licensed Professional Geologist in the State of Utah (No. 5223618-2250) and President of Industrial Mineral Developments, Inc. He authored the December 2013 “Environmental Minerals, Inc. Pozzolan Resource Volume Estimates for Mining Production,” which includes detailed geology, drilling, sampling, and resource volume calculations for the Dunmovin pozzolan deposit. Mr. Johnson serves as the Qualified Person for geological interpretation and mineral resource estimation for the project.
Robert L. Day, Ph.D., P.Eng. (Pozzolan and Cement Materials Specialist)
Dr. Day is a civil engineer and materials specialist who authored the “Pozzolans for Use in Low-Cost Housing” state-of-the-art report for the International Development Research Centre (IDRC) while at the Department of Civil Engineering, University of Calgary. His work provides independent, peer-reviewed guidance on the classification, reactivity, and engineering performance of natural pozzolans and blended cements. Dr. Day’s expertise supports the characterization of EMI’s pozzolan in relation to ASTM and international performance standards.
Gregory J. Iseman (Analytical and Assay Specialist)
Mr. Iseman is the principal of Iseman Consulting in Henderson, Nevada, and has conducted extensive analytical work on precious-metal bearing samples associated with EMI’s broader mineral projects. His laboratory reports document microwave digestion, fire-inquart, electrowinning, and related analytical methods, providing an independent check on assay quality and metal values where relevant.
Together, these independent professionals provide third-party technical validation of the geological model, resource volumes, and performance characteristics of Environmental Minerals Inc.’s natural pozzolan and associated mineral assets.
Our Company
Environmental Minerals Inc. (“EMI”), a Nevada corporation with principal offices in Vancouver, British Columbia, brings more than three decades of project development experience across its executive and engineering teams. EMI operates as an integrated project developer, with capabilities spanning design, construction, operational management, and long-term maintenance of industrial and infrastructure-scale facilities. Our technical expertise enables us to deliver full-cycle development in mineral processing, materials supply, and engineered infrastructure systems.
Rare Earth and Critical Minerals Position
EMI controls three U.S. mining sites, including two in California, which together constitute what is understood to be the largest independent QP verified rare earth and critical minerals positions in the United States. These independently documented mineral assets provide long-duration, strategic supply that complements our natural pozzolan business and aligns with emerging U.S. policy initiatives around critical minerals stockpiling and domestic supply security.
Our Opportunity
EMI controls an independently assessed reserve of approximately 258 million tons of high-quality natural pozzolan suitable for ASTM C618 Class N applications. Current market pricing for comparable Class N pozzolan typically ranges from USD $110 to $150 per ton, with extraction, processing, and logistics costs estimated at $20–$40 per ton depending on scale and configuration. At full production, this reserve represents a multi-decade industrial supply position and complements our broader portfolio of strategic minerals.
In addition, EMI holds an exclusive option over a materially larger neighbouring area of approximately 4,000 acres containing verified high-grade natural pozzolan. This expansion area provides significant long-term scalability and reinforces EMI’s position as one of the most substantial domestic suppliers of low-carbon supplementary cementitious materials.
Demand for natural pozzolan is increasing sharply due to infrastructure programmes in the United States, Canada, and other global markets, together with regulatory shifts away from coal-derived fly ash. Federal and state mandates for low-carbon concrete, combined with chronic SCM shortages, have created a structural need for long-term domestic pozzolan supply.
The U.S. cement and concrete sector represents an approximately USD $11 billion annual market, while the global sector exceeds USD $450 billion. Publicly listed cement and infrastructure firms have experienced strong valuation expansion, reflecting long-term capital flows into resilient, essential-infrastructure industries.
Location
Both EMI sites are strategically located along a major transportation corridor approximately two hours north of Los Angeles, providing efficient access to California’s concrete, infrastructure, port, and construction markets, as well as export routes for strategic mineral products.
Our Natural Pozzolan Value
Natural pozzolans vary significantly by origin and mineral composition. EMI’s material is light-coloured, water-neutral, and suitable for replacement levels of up to 50 percent of Portland cement in engineered concrete.
Our CEME’T-POZZ product is free of crystalline silica and other
hazardous constituents. Core chemical composition includes:
68% Silica 15.6% Alumina 3.1% Iron Oxide
3.4% Calcium Oxide
Benefits and Advantages of Natural Pozzolan
• Lithification: The pozzolanic reaction begins upon hydration and continues for years, ultimately forming a dense, stone-like structure with increasing compressive and flexural strength. This chemical stability contributes to the longevity of ancient structures that have endured for millennia.
• Autogenous Healing: Natural pozzolan can self-seal microcracks by consuming free calcium hydroxide released during cement hydration, restoring density within the concrete matrix.
• Reduced Permeability and Voids: The material enhances fluidity without requiring excess water, significantly reducing capillary pores and improving long-term durability.
• Lower Heat of Hydration: Replacing a portion of Portland cement with natural pozzolan can reduce heat generation by up to 60 percent, helping mitigate thermal cracking in large pours.
• Reduced Creep and Shrinkage: By moderating moisture loss and internal temperature gradients, natural pozzolan reduces creep and shrinkage, lowering crack formation.
• Minimised Microcracking: A denser and more reactive matrix significantly reduces microcrack formation, improving structural integrity.
• Increased Compressive Strength: Over time, pozzolanic reactions generate additional C-S-H, allowing mixes containing 30 percent natural pozzolan to exceed the strength of ordinary Portland cement after extended curing.
• Improved Chloride Resistance: A denser matrix restricts chloride ion penetration, protecting embedded steel reinforcement and extending concrete service life in marine or de-icing environments.
• Enhanced Sulfate Resistance: Natural pozzolan mitigates the formation of expansive sulfate reaction products such as gypsum, ettringite, and thaumasite, preserving structural integrity.
• Reduced Alkali–Silica Reactivity (ASR): Its fine particle size captures free alkali ions, significantly reducing ASR-related expansion.
• Corrosion Protection: The dense pozzolanic matrix impedes gases and liquids, improving long-term durability of reinforced concrete.
• Increased Abrasion Resistance: Higher density and reduced chemical attack improve wear resistance under heavy-duty applications.
• Lower Water Requirement and Better Workability: Natural pozzolan improves flowability, reduces segregation, and supports more uniform compaction in vibratory placement.
• Long-Term Durability: These combined properties contribute to structural longevity, consistent with performance observed in ancient pozzolanic concrete.
CEME'T-POZZ
