Century Lithium files Angel Island Mine Plan as Nevada lithium project enters federal review

Century Lithium Corp. (TSXV: LCE; OTCQX: CYDVF) has submitted a Mine Plan of Operations and Nevada Reclamation Permit Application for its 100%-owned Angel Island Mine Project in Esmeralda County, Nevada, pushing the proposed lithium development into a more formal federal permitting phase. The Mine Plan was submitted on September 3 to the U.S. Bureau of Land Management’s Battle Mountain District, Tonopah Field Office and will provide the proposed action on which environmental analysis under the National Environmental Policy Act is based. Century Lithium expects the Bureau of Land Management to conduct an initial completeness review before the project advances through environmental assessment, public scoping and an eventual Record of Decision. The filing reduces one category of development uncertainty, but it does not constitute project approval and leaves Century Lithium facing a capital requirement that is enormous relative to its current corporate financial resources.

Angel Island is designed as a two-stage operation extracting lithium-bearing claystone through shallow surface mining, with Century Lithium expecting minimal overburden and no routine drilling or blasting under its current plan. Processing would combine agitated tank leaching, solid-liquid separation, direct lithium extraction and crystallization to produce battery-grade lithium carbonate on site. A chlor-alkali plant is also intended to manufacture hydrochloric acid and sodium hydroxide for the processing circuit, with surplus sodium hydroxide potentially generating co-product revenue. That integrated design is central to the project economics, but it also means lenders and strategic investors will ultimately need confidence in several connected processing systems rather than a conventional mine-and-concentrator configuration.

How much regulatory risk remains after Century Lithium filed the Angel Island Mine Plan?

Submitting the Mine Plan gives the Bureau of Land Management a formal operating proposal to review, but several stages remain before construction can be considered federally authorized. Century Lithium expects a 30-day review for completeness and adequacy, after which a third-party National Environmental Policy Act contractor can progress supplemental environmental work supporting an Environmental Impact Statement. The company’s current schedule targets publication of a Notice of Intent and initiation of public scoping during the second quarter of 2027, with a Record of Decision and Mine Plan publication anticipated around the first quarter of 2028.

Those dates are estimates prepared by the company with input from the Bureau of Land Management and the third-party contractor rather than guaranteed regulatory deadlines. Additional baseline-data requirements could extend the schedule, while public comments and agency review can influence both timing and project conditions. Century Lithium is simultaneously preparing state and local permits, including work associated with its Water Pollution Control Permit package, so federal progress represents only one part of the authorization pathway.

The company has an advantage in having spent years gathering project data and operating a demonstration-scale lithium extraction facility, but permitting still needs to validate how the proposed mine, water use, processing facilities and reclamation strategy fit within Nevada’s environmental framework. A complete Mine Plan is therefore a prerequisite for progress, not evidence that construction approval is assured.

Do Angel Island’s $4.01 billion NPV and 27.4% IRR survive a realistic financing test?

Century Lithium’s February 2026 feasibility study produced unusually large project economics relative to the company’s current market value. The study calculated an after-tax net present value at an 8% discount rate of $4.01 billion and an after-tax internal rate of return of 27.4%, based on lithium carbonate at $24,000 per tonne and sodium hydroxide at $750 per dry metric tonne. Average production was modelled at approximately 26,500 tonnes of battery-grade lithium carbonate annually across a 40-year economic schedule, while Proven and Probable Mineral Reserves were sufficient to support more than 60 years of mine life.

Those headline economics rely on substantial construction spending. Phase 1 capital was estimated at approximately $997 million, with another $660 million for the Phase 2 expansion, producing combined staged capital of roughly $1.66 billion before considering any financing costs or future cost changes. Century Lithium reduced initial capital materially from its previous project configuration, but the remaining requirement is still far beyond what the company can fund from its existing cash resources.

The economic case also depends heavily on commodity assumptions and co-product economics. The feasibility study attributes significant value to surplus sodium hydroxide, which is designed to offset a portion of lithium operating costs. That offers an unusual potential cost advantage, but it introduces additional market exposure because project economics become linked not only to lithium carbonate pricing but also to the volume and price achieved for sodium hydroxide sales.

Why is Century Lithium’s corporate balance sheet the next constraint after permitting progress?

Century Lithium reported approximately C$9.25 million of cash at June 30, 2026, after completing a C$7 million financing earlier in the year. The company remains a pre-production developer without operating mine cash flow, meaning continued engineering, permitting and eventual construction must be financed through equity, debt, strategic partners, government support, offtake structures or some combination of those sources. Its interim filings explicitly recognize the need for additional financing to advance Angel Island toward development.

The scale mismatch is therefore clear. A company with millions of dollars of corporate liquidity is attempting to advance a project whose feasibility study calls for nearly US$1 billion before the initial operating phase and US$1.66 billion across both stages. That does not make the project unfinanceable, but it shifts attention toward external validation from institutions capable of providing project-scale capital.

Permitting can improve that conversation because financiers generally assign greater value to a technically defined project once regulatory uncertainty narrows. Successful environmental review, clearer construction engineering and demonstration of the processing circuit can reduce the number of unresolved variables used in credit and investment decisions. Offtake agreements, strategic investment or government-related financing would provide stronger evidence of financeability than the NPV alone.

Does the September share-price move show investors are beginning to price in permitting progress?

Century Lithium shares closed at C$0.275 on September 9, up 5.77% for the session and approximately 7.8% over five trading days. The move coincided with the Mine Plan announcement and indicates increased market attention, although a one-day gain cannot establish how much of the permitting milestone has been incorporated into long-term valuation. The shares remained down about 6.8% for 2026 despite the positive session.

The current price is also below the C$0.47 issue price used in the company’s March financing and well below the C$0.65 exercise price attached to warrants issued in that financing. That gap highlights how equity-market conditions could influence future funding choices. If the company attempted to finance substantial development activity primarily through common equity at current levels, dilution could become significant, making non-equity sources of capital strategically important.

Century Lithium lists analysts from Alliance Global Partners, Noble Capital Markets and Hallgarten & Company as covering the company, but the relatively limited breadth of published coverage means project milestones can have an outsized influence on sentiment. The next valuation proof points will therefore be regulatory rather than promotional: confirmation that the Mine Plan is complete, initiation of formal public scoping, progress on state permits and evidence of credible construction financing.

Angel Island has moved from feasibility work toward a permitting process with defined regulatory steps, which is genuine project advancement. The $4.01 billion after-tax NPV creates a potentially attractive economic case under the feasibility assumptions, but the value remains conditional on approvals, engineering, commodity prices and the ability to finance capital approaching $1.66 billion across two stages. A federal Record of Decision combined with a credible financing package would materially change the project’s risk profile; prolonged permitting or a financing structure carrying excessive cost or dilution would weaken it.

Key takeaways on Century Lithium and the Angel Island Mine Plan

• Century Lithium submitted the Angel Island Mine Plan of Operations to the U.S. Bureau of Land Management on September 3.
• The company also submitted its Nevada Reclamation Permit Application.
• The filing begins a more formal environmental-review pathway but does not represent mine approval.
• Century Lithium currently anticipates a federal Record of Decision around the first quarter of 2028.
• The 2026 feasibility study calculated a $4.01 billion after-tax NPV and 27.4% after-tax IRR.
• Phase 1 capital is estimated at about $997 million, with a further $660 million contemplated for Phase 2.
• The project is designed to average roughly 26,500 tonnes of battery-grade lithium carbonate annually.
• Century Lithium had approximately C$9.25 million in cash at June 30, underscoring the need for outside project financing.
• LCE shares closed at C$0.275 on September 9, up 5.77% following the announcement.
• Regulatory progression and a credible financing structure are now the most measurable de-risking milestones.