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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallStart with what the company actually owns or controls, then test whether its mineral estimates support a technically and economically credible plan. For financing or an acquisition, compare the money and rights changing hands with the project’s remaining costs, risks, obligations and decision-making control—not just a headline resource figure or purchase price.
What is the company financing or buying?
First identify the subject of the transaction. It may be an operating mine, a development project, an exploration property, a package of claims, a joint-venture interest, a royalty or a stream. These interests can carry very different rights and obligations. An economic interest in production does not necessarily give its holder authority to operate the property or make project decisions.
Map ownership, control and obligations
Establish the percentage interest and trace the ownership chain. Check title and tenure, surface rights, easements, the operator, decision and voting rights, access to technical data, material consents, offtake commitments, security interests and other encumbrances. Identify liabilities and commitments that remain with the seller or transfer to the buyer.
Read disclosures about the company’s relationship to the project carefully. In its 2026 filing, a Mesabi royalty holder says it neither operates nor controls the underlying property and does not independently verify operator-generated data. That example shows why a royalty or other financial exposure should not be treated as proof of operating control or independent technical validation. Read the Mesabi SEC filing.
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For an acquisition, determine exactly what transfers, which approvals or consents are required, and who is responsible for each outstanding commitment. The McDermitt and Greenbushes technical reports include property description, title-related matters, surface rights, consents, access and potential limiting factors among the subjects to examine. McDermitt report; Greenbushes report.
What do the resource and reserve estimates establish?
Do not treat a large mineral resource as proof that a project can be mined profitably. In the U.S. SEC S-K 1300 framework, a reserve is based on the economically mineable portion of measured or indicated resources, with a pre-feasibility or feasibility study applying relevant modifying factors. A resource estimate alone does not establish that outcome.
Check the category, standard and date
- Record whether each estimate is a resource or reserve and its category.
- Note the reporting code or regulation, effective date and report date. Do not assume that an old estimate remains current.
- Identify the Qualified Persons responsible and what parts of the project they evaluated.
- Distinguish current compliant estimates from historical figures included for context.
The amended McDermitt S-K 1300 summary, amended August 12, 2026, labels historical JORC estimates as context rather than presenting them as equivalent to its current reporting basis. Compare estimates only after checking their standard, date, category and scope. See the amended McDermitt summary.
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The SEC S-K 1300 definition reproduced in the 2026 Wharf Operations technical report summary says: “A mineral reserve is an estimate of tonnage and grade or quality of indicated and measured mineral resources that, in the opinion of the qualified person, can be the basis of an economically viable project.” The report also explains that a pre-feasibility or feasibility study must apply modifying factors and show viability under reasonable investment and market assumptions. This is a regulatory definition, not a guarantee of profitability or a prediction that a project will earn a particular return. Read the Wharf Operations summary.
Inspect who prepared the technical work
Check which experts prepared each section, their stated scope and whether the company operates the asset or relies on another operator’s information. The Mesabi filing identifies separate experts for resource and reserve estimates and consultants for areas including tailings, water, environmental matters, costs and economics. Multiple contributors are not, by themselves, a weakness; the important question is whether the work covers the issues and project stage that underpin the company’s claims.
Can the project turn mineralization into a saleable product?
Follow the production chain from deposit to customer. A credible evaluation asks how geology, mining, processing, recovery, refining or separation, product specifications, transport and sale fit together. A mineral headline cannot answer whether the planned product can be produced, meet specifications and reach a market on the assumed schedule and cost.
Test the technical and economic assumptions
- Mining: Check the proposed mining method and whether the deposit’s geometry and other stated assumptions support it.
- Processing and recovery: Ask whether metallurgical tests represent the ore and its expected variability, and whether the process route has been demonstrated at a scale relevant to the estimate.
- Infrastructure: Review the stated availability and cost of power, water, roads, rail, ports, waste facilities and tailings management.
- Product and market: Determine what product the project expects to sell, what processing or conversion is needed to reach it, and what market assumptions underpin the evaluation.
- Economics: Trace capital and operating costs, schedule, recovery and other assumptions through to the economic analysis. Identify which are supported by technical work and which remain estimates.
Technical report scopes include mining methods, processing and recovery, infrastructure, market studies, capital and operating costs, and economic analysis. For rare earths, the Mountain Pass report treats separation as a distinct processing area—an important prompt to examine downstream conversion and separation dependencies as well as extraction. These report outlines identify diligence questions; they do not establish the economics of a particular process route or project. Mountain Pass 2025 report; McDermitt report.
Are title, permits and execution conditions sufficiently clear?
Project readiness includes legal access and the work required to secure approvals, manage environmental effects and carry out construction. For each item, record its status—approved, pending, conditional, contested or not yet applied for—along with the responsible party and expected timing. Do not treat a permit application as an approval or an anticipated date as a completed milestone.
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- Confirm tenure, surface rights, easements, access and material government consents.
- Review environmental studies and plans, water management, tailings, closure obligations and any stated limiting factors.
- Check the status of local agreements and community engagement where relevant to the project.
- Identify dependencies: which permits, consents or agreements must be in place before construction or another financing milestone?
Greenbushes’ report headings cover land tenure, surface rights, easements, material consents, limiting factors, environmental and social considerations, and economic evaluation. McDermitt’s report scope includes environmental studies, permitting and local agreements. Those disclosures can guide a checklist, but a heading in a report is not evidence that an approval has been obtained. Greenbushes report; McDermitt report.
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Does the financing fit the project’s funding needs?
Evaluate financing against a specific plan and schedule, not just the amount announced. Map the funds needed for the next relevant milestones—such as studies, engineering, permitting, construction, commissioning, ramp-up or working capital—and compare them with available cash and committed funding. Include timing and contingencies. Ask whether the financing funds the project through a defined milestone or leaves a material funding gap soon afterward.
Read the terms as well as the amount
For each instrument, examine the consequences for existing investors, project assets and future cash needs. Relevant terms include:
- Dilution and control: new shares, conversion mechanics, voting rights and any changes in decision-making control.
- Security and covenants: assets pledged, restrictions on the company and conditions that could limit future financing or project decisions.
- Repayment and maturity: interest or other payment obligations, amortization, maturity date and dependence on refinancing.
- Conditions and use of proceeds: conditions precedent, restrictions on funds and whether proceeds are allocated to the milestones in the plan.
- Commercial commitments: any linked offtake pricing, volume commitments or other obligations that affect future product sales.
Compare financing needs with project cost and economic-analysis disclosures, but do not infer current market pricing or typical terms from those technical reports. The cited filings do not establish a cross-market benchmark for debt, equity, royalties, streams, offtake or government support. Any claim about prevailing terms or a numeric financing benchmark needs company- and transaction-specific evidence tied to a date.
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How should an acquisition price be evaluated?
Look beyond the purchase price to the full economic commitment. Separate enterprise value, equity value, assumed debt, earn-outs, contingent payments, royalties, streams, closure liabilities and future project capital. Then test whether the buyer has the access, rights and technical information needed to validate the asset and its obligations.
Test the downside, not only the stated case
Evaluate how the project changes if commodity prices, grade, recovery or throughput are lower than assumed; capital or operating costs rise; the schedule slips; or foreign exchange, taxes, royalties or permitting change the economics. Separate management estimates from assumptions supported by independent technical work. For a buyer that will not operate the asset, also assess whether it can obtain and verify operating data. A low headline price may still leave the buyer with substantial future funding needs or uncertainty it cannot readily resolve.
How can projects be compared fairly?
Use the same comparison axes for each company or project. A resource-tonnage comparison on its own ignores differences in estimate maturity, rights, processing needs, infrastructure, permits and funding requirements.
| Comparison axis | What to record |
|---|---|
| Development stage and studies | Stage of the project and the maturity, date and scope of its technical studies. |
| Resource and reserve disclosure | Estimate category, reporting standard, effective date and responsible Qualified Persons. |
| Ownership and control | Economic interest, title, operator, decision rights, surface access, encumbrances and liabilities. |
| Deposit and production route | Deposit characteristics, mining method, processing, recovery and any refining or separation dependency. |
| Infrastructure and execution | Power, water, transport, waste and tailings arrangements, permits, agreements and schedule dependencies. |
| Product and sales | Planned saleable product, product-quality assumptions and any offtake commitments. |
| Capital and funding | Remaining funding needs, committed proceeds, milestone coverage, dilution, security and repayment obligations. |
| Downside sensitivity | Exposure to changes in price, grade, recovery, throughput, cost, schedule, foreign exchange, taxes, royalties and permitting. |
Technical filings separate many of these subjects into distinct report sections, including those for McDermitt, Greenbushes, Mountain Pass and the Mesabi disclosure. Applying the same axes helps reveal what is known, what differs, and what remains unverified in a particular comparison. McDermitt; Greenbushes; Mountain Pass; Mesabi.
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Which claims require additional, transaction-specific review?
The filings cited here support a diligence framework, not a conclusion about a particular company’s asset quality, legal position, financing fairness or likely investment return. S-K 1300 is a U.S. disclosure framework; other jurisdictions may use different reporting, securities, tax and acquisition rules. For a named company or deal, use its latest filings and technical reports, check the dates and scope of the underlying disclosures, and obtain qualified technical, legal, tax and financial review where those disciplines affect the conclusion.
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