Alaska's Nikolai Nickel Project Begins Hydrometallurgy Tests, but Commercial Production Remains Distant

A new test aimed at securing a domestic supply of critical minerals has begun at the Nikolai Project near Delta Junction, in interior Alaska. On October 27, 2026, Alaska Energy Metals Corporation (AEMC), which holds the claims, and Canada's RecycLiCo Battery Materials, which develops battery recycling and metal refining technology, announced that they had started applying RecycLiCo's proprietary hydrometallurgical technology to a concentrate made from ore taken from the Eureka deposit.

The Eureka deposit is estimated to contain 9.38 billion pounds (about 4.25 million tonnes) of nickel in the inferred resource category alone, and AEMC positions it as the largest nickel resource in the United States. It also contains cobalt, copper, platinum group metals and other elements, and is expected to serve as a source that strengthens the U.S. critical minerals supply chain. However, the announcement does not mark the start of commercial production, nor does it demonstrate successful metal recovery by hydrometallurgy. It marks the start of laboratory testing to determine whether chemical processing can separate and recover individual metals from a concentrate obtained through mineral processing. The amount of metal estimated to exist underground differs from the amount of refined metal that can be supplied to industry, and many challenges lie in between, including beneficiation, leaching and separation, scale-up of facilities, and environmental permitting.

What has begun is a laboratory application test, not successful metal recovery

The test is based on a memorandum of understanding (MOU) signed on September 16, 2025, between AEMC and RecycLiCo's U.S. subsidiary, RecycLiCo US Mineral Recovery. It is being conducted at RecycLiCo's laboratory in Delta, British Columbia, Canada, with test procedures prepared by RecycLiCo and approved by AEMC. The material tested is a concentrate prepared from drill core collected during AEMC's 2023–2024 exploration.

The aim is to confirm whether RecycLiCo's patented hydrometallurgical technology, originally developed to recover metals from spent batteries and similar sources, can also be applied to the polymetallic sulfide concentrate from the Eureka deposit. Spent batteries and natural sulfide ores differ in composition and impurities, so an existing recovery technology cannot be assumed to work unchanged. Testing with actual ore is essential to verify whether metals can be dissolved at sufficient rates, whether target metals can be separated selectively, and whether the amount of reagents needed can be kept down.

Importantly, as of the October 27, 2026 announcement, no data had been released on recovery rates for each metal, product purity, reagent consumption, processing costs, or third-party verification. What the companies disclosed was the start of testing; it has not been confirmed that metals of commercially usable quality were recovered through hydrometallurgy. Assessing the technology going forward will require such quantitative data.

The MOU also includes a plan to jointly build a hydrometallurgical facility at the Nikolai Project site in Alaska if the tests succeed. If realized, this could lead to a supply setup in which concentrate is refined within the United States rather than shipped to overseas smelters. At this stage, however, construction of such a facility has not been approved, and investment size, processing capacity, and start-up timing have not been decided. The test is best understood as an effort to gather baseline data for assessing technical and economic feasibility on the path to commercialization.

Flotation recovered 49.4% of nickel; hydrometallurgy performance remains unverified

Obtaining high-purity metal compounds usable for battery materials from ore broadly requires two stages: beneficiation and smelting or refining. In the first, mined ore is crushed and valuable minerals are separated and concentrated by methods such as flotation, which exploits differences in mineral surface properties to collect valuable minerals attached to bubbles. In the second, hydrometallurgy, the resulting concentrate is treated with an aqueous solution such as acid, and the dissolved metals are chemically separated and recovered. How much metal can be collected into the concentrate by flotation and how much can be extracted from the concentrate must be evaluated separately.

On July 16, 2026, AEMC released results of a locked cycle flotation test (LCT) conducted at the SGS laboratory in Quebec, Canada. The test used a 30,054 g sample blended from drill core taken from the Eureka deposit's Central East Zone (CEZ2). In the first locked cycle test, LCT-1, 506 g of nickel-copper bulk concentrate was obtained from the ore fed in, equivalent to 1.68% of the feed weight. A locked cycle test reproduces the recycling of intermediate products within the processing circuit, and is used to evaluate recovery under conditions closer to actual operations.

In that test, the shares of each metal in the ore that were recovered to the concentrate were 49.4% for nickel, 50.5% for copper, 21.0% for cobalt, 49.1% for platinum, 43.1% for palladium, and 43.9% for gold.

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The results show that at the flotation stage, about half of the nickel and copper in the ore, and about 80% of the cobalt, was not recovered to the concentrate. On the other hand, the concentrate grades were 7.22% nickel, 4.01% copper and 0.30% cobalt, meaning valuable metals are more concentrated than in the raw ore. However, this is feedstock for smelting, not a high-purity metal compound that can be used directly in battery cathode materials. For example, a refined product with purity of 99.9% or higher and a concentrate containing 7.22% nickel differ greatly in character and use.

Caution is also needed in applying this result to the Eureka deposit as a whole. LCT-1 evaluated a specific composite sample from CEZ2, and the same recovery rates will not necessarily be obtained everywhere across a large deposit. Because mineral composition, grain size and the form in which each metal occurs can vary by mining location, process reproducibility must be confirmed using multiple samples. In addition, if recovery at the stage of obtaining concentrate from ore is 49.4%, then even if all the nickel were recovered in the subsequent hydrometallurgy, overall recovery starting from the raw ore would not exceed 49.4%. In evaluating RecycLiCo's test results, it will be necessary to distinguish recovery for the hydrometallurgical step alone from recovery across the whole process, including flotation.

AEMC is also working to improve the flotation process itself. Specifically, it is considering developing sequential flotation that recovers copper and nickel in stages while suppressing the flotation of pyrrhotite, as well as a processing step to separate and recover iron and chromium. The beneficiation process still needs continued optimization to balance concentrate grade and metal recovery.

Nor is AEMC concentrating its hydrometallurgy development on RecycLiCo alone. It is comparing multiple technologies, and in its July 2026 announcement it outlined a plan to send concentrate obtained in the locked cycle flotation test to Lifezone Metals, which has its own pressure leaching technology, to examine suitability for hydrometallurgy. The joint test with RecycLiCo is one of several efforts to find a metal recovery method suited to the Eureka deposit.

9.38 billion pounds of nickel is not an amount that can be mined

The figure drawing attention at the Nikolai Project, 9.38 billion pounds (about 4.25 million tonnes) of nickel, does not guarantee future production or the amount of metal that can be mined economically. The number is the in-ground metal content included in the "Inferred Mineral Resource" category, estimated under Canada's NI 43-101 mining disclosure standard. Inferred resources carry high uncertainty even among resource categories based on geological information, and are distinct from production volumes that can be mined profitably.

A technical report prepared by independent engineering firm Stantec and filed on April 21, 2025 (effective date March 7, 2025) classifies the Eureka deposit's resources as follows. The figures are based on the resource estimate AEMC announced in March 2025, and the nickel equivalent grade (NiEq) is shown excluding chromium and iron.

The inferred resource of 9.38 billion pounds of nickel is the total metal estimated to be contained in 2.087 billion tonnes of low-grade ore at 0.20% nickel. The indicated resource, which carries relatively higher confidence, is 1.19 billion tonnes of ore at a nickel grade of 0.21%, with 5.6 billion pounds of contained nickel. Note that "Mineral Resources" under NI 43-101 differ from "Mineral Reserves," for which economic viability of mining has been demonstrated. Resources include metal lost in mining and metal that cannot be recovered in beneficiation and smelting, so not all of it can be extracted as product.

The resource estimate relies on optimization calculations that set a conceptual open-pit shape. The model incorporated conditions such as a nickel price of US$19,558.71 per tonne and a pit slope angle of 45 degrees. Such calculations are meant to narrow the area where there are reasonable prospects for eventual economic extraction; they do not prove a mining project's profitability. Judging actual profitability requires a preliminary economic assessment (PEA) or pre-feasibility study (PFS) that takes into account mining costs, smelting costs, capital expenditure, market conditions and more.

The phrase "largest nickel resource in the United States" is also one AEMC uses based on its own resource estimate. There is no established public ranking comparing all U.S. deposits under the same conditions, so it should be understood as the company's assessment. While the size of a resource indicates development potential, it alone does not guarantee that commercial production will be viable.

The Nikolai Project's claim area totals 10,683 hectares, of which the Eureka block accounts for 6,863 hectares and the Canwell block for 3,820 hectares. For the Canwell block, AEMC announced completion of the acquisition on September 16, 2026. It had previously held an option to acquire a 100% interest, but has now made the final payment and the transfer of the full interest is being processed.

"Seven critical minerals" versus the official U.S. designation

AEMC and RecycLiCo name seven metals expected to be recovered from the Nikolai Project: nickel, cobalt, copper, chromium, platinum, palladium and gold. In the October 27, 2026 announcement, they described these as critical minerals designated by the U.S. government, while distinguishing iron as a common metal that does not qualify as a critical mineral. However, checking against the official list published by the U.S. Geological Survey (USGS) shows a point that needs attention.

The 2025 critical minerals list released by the U.S. Department of the Interior and USGS on November 7, 2025 includes a total of 60 commodities. Of these, six that AEMC cites (nickel, cobalt, copper, chromium, platinum and palladium) are designated, but gold is not included. Gold has high commercial value and could raise a mine's profitability if recovered as a byproduct, yet it is not a critical mineral on the official USGS list.

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  "unit": "Designation (1 = designated, 0 = not designated)",
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  "series": [
    { "name": "USGS critical mineral designation", "values": [1, 1, 1, 1, 1, 1, 0] }
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  "caption": "Based on the final list published by the U.S. Department of the Interior and USGS on November 7, 2025",
  "source": "U.S. Geological Survey (USGS)"
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This difference matters for avoiding confusion between the U.S. government's classification of critical minerals and companies' view of which metals are economically and strategically important. That gold is not on the official list does not mean it is not worth recovering from the Eureka deposit. On the other hand, understanding all seven as USGS-designated critical minerals could lead to a misreading of the policy standing. When assessing the link to U.S. critical minerals policy, it is necessary to check company statements and official government classifications separately.

The tie-up with automakers also requires distinguishing efforts that are actually underway from future plans. AEMC has joined "Minerals for National Automotive Competitiveness (MINAC)," a corporate coalition in which U.S. electric vehicle maker Lucid and others participate. According to the announcement of July 23, 2025, the coalition includes Lucid, AEMC, RecycLiCo, Graphite One and Electric Metals, and aims to strengthen North American mining, refining and procurement of critical minerals.

MINAC also aims to promote future offtake agreements (product purchase contracts) for critical minerals produced in the United States. However, joining a corporate coalition does not mean Lucid has signed a contract to buy metals from the Nikolai Project. As of now, it has not been disclosed that any sales contract or purchase commitment for Nikolai metals has been concluded between Lucid and AEMC. Backing commercial demand would require a contract specifying purchase volumes, price terms and supply start dates.

The vision of completing the critical minerals supply chain within the United States has also yet to materialize. Although the deposit is in Alaska, the hydrometallurgy test is being conducted at a laboratory in Canada. Developing technology within North America is not the same as completing everything from mining to refining within the United States. To build the domestic supply system the two companies envision, they would need to construct a commercial-scale refining facility in Alaska, obtain the necessary permits, and show that they can sustain profitable operations.

FAST-41 listing is not approval of mine development

In considering the commercialization of the Nikolai Project, progress on permitting by the federal government and the State of Alaska is also important. On November 19, 2025, the U.S. Permitting Council announced that it had added the Nikolai Project to the FAST-41 Transparency Dashboard, which publicly tracks federal permitting progress. FAST-41 is a system for centrally managing and publishing the progress and schedules of environmental reviews and permitting procedures that span multiple federal agencies.

However, being listed under FAST-41 does not mean that mine development or extraction has been approved. The system is meant to increase transparency and predictability of reviews; it does not relax environmental standards, nor does the government guarantee a project's technical or economic feasibility. Even listed projects must go through permitting procedures under individual laws.

According to the federal public dashboard, what is currently under review is the infrastructure needed for "Advanced Exploration" at the Nikolai Project. Specifically, this includes upgrading the existing Rainy Creek Mining Road, extending access roads, temporary crossing structures over the Delta River and Eureka Creek, and setting up an exploration camp. The lead agency is the U.S. Army Corps of Engineers (USACE), with the Bureau of Land Management (BLM) and other agencies involved in the process.

The water quality certification application notice published on March 25, 2026 by the Alaska Department of Environmental Conservation (DEC) likewise covers roads and temporary facilities for exploration, not commercial mining operations. The application assumes exploration activities from 2026 to 2031, with temporary facilities and land disturbances to be restored to their original state after exploration ends. This differs in nature from a permit allowing long-term mining or operation of a commercial smelting facility.

The items currently under FAST-41 review do not include full-scale open-pit mining of the Eureka deposit or construction and operation of a large-scale hydrometallurgical plant. Future commercial development will therefore require additional reviews, including environmental impact assessments tailored to a mining plan and reviews of tailings and effluent management and smelter construction. The expected review completion dates on the dashboard are also not fixed deadlines and may change depending on consultations between the applicant and regulators and on the progress of reviews.

Organizing the Nikolai Project's progress, the differences between what has been demonstrated at this stage and what is needed for further development are as follows.

Overall recovery and economic assessment are essential to judging commercialization

In judging whether the Nikolai Project can become a viable source of U.S. critical minerals, the first thing to check is the result of RecycLiCo's hydrometallurgy test. Specifically, what matters is the proportion of nickel, cobalt, copper, platinum group metals and others in the concentrate that could be extracted, and the purity at which each metal could be separated. For products aimed at battery materials, compounds such as nickel sulfate must also meet impurity concentration standards suited to the application. Moreover, unless the consumption of acid and reagents needed for leaching ore and separating metals, the method of treating effluent, and energy use become clear, processing costs at commercial scale cannot be evaluated.

The next key point is overall recovery from flotation through hydrometallurgy. In LCT-1, announced in July 2026, nickel recovery by flotation was only 49.4%. Even if high recovery is achieved in the hydrometallurgical step, metal lost at the earlier stage cannot be regained, so the performance of individual steps alone cannot determine final product yield. The focus going forward will be how far recovery can be raised by improving flotation conditions and separating pyrrhotite, and whether similar results can be reproduced with samples from other zones.

Whether laboratory results can be scaled up to commercial equipment is also a major challenge. Even if good results are obtained in tests using small amounts of concentrate, equipment that continuously processes large volumes of ore can run into problems with reaction time, impurity buildup, equipment corrosion, reagent reuse and wastewater treatment. For a low-grade deposit in particular, large quantities of raw ore must be processed, so the processing cost per unit weight will greatly influence the profitability of the whole project. Moving from application tests at a Canadian laboratory to a commercial plant in Alaska will require staged scale-up and technical verification.

On financing and securing customers, publication of a preliminary economic assessment (PEA) and conclusion of legally binding commercial contracts will be important. If a PEA presents initial capital expenditure, operating costs, expected metal production and assumed sales prices, the economic feasibility of mine development can be examined more concretely. Whether industry ties with Lucid and others develop into actual offtake agreements is also a point to watch. However, a PEA is an early-stage economic assessment, and its publication alone does not settle a project's profitability.

The Eureka deposit is estimated to hold vast nickel resources, but many steps remain before they can be turned into refined metal that can be reliably supplied within the United States. The joint test with RecycLiCo is the first stage, aimed at confirming whether the smelting technology is suitable. From here, attention should go less to the size of the resource and more to actual metal recovery rates, processing costs, product quality and progress on environmental permitting. Whether these technical and economic conditions can be met will determine whether the Nikolai Project can be incorporated into the U.S. critical minerals supply chain.