Nobody wants to admit this, but half the mining investments that blow up do so because investors don't understand the difference between a JORC report and an NI 43-101 technical report.
Not because they're stupid. Because the industry prefers you don't ask uncomfortable questions about why identical orebodies can be valued 30% differently depending on which reporting standard gets used.
Both standards exist to protect investors. Both require qualified professionals. Both follow internationally recognized mineral resource classification systems.
And both can be used to present the same deposit in radically different lights.
The Origin Story Nobody Tells You
NI 43-101 was written by Canadian securities lawyers in 2001 after Bre-X became the biggest mining fraud in history. The goal: force companies to disclose everything that could materially affect investor decisions.
JORC came from Australian mining professionals in 1989 (updated multiple times since). The goal: establish technical credibility and standardize resource reporting across the industry.
That philosophical difference matters more than most analysts realize.
NI 43-101 is prescriptive. It tells you exactly what to include, in what format, with what level of detail. Canadian regulators treat it as securities law, not industry guidance.
JORC uses softer language. It relies heavily on the judgment of the "competent person" preparing the report. It's a technical code, not a legal mandate.
The Disclosure Gap That Moves Markets
Under NI 43-101, companies must file complete technical reports on SEDAR that include specific geological parameters, metallurgical test work results, capital cost estimates, operating cost assumptions, and economic sensitivity analyses.
Full transparency. Everything public.
JORC permits summary announcements. Companies can disclose key highlights without publishing the entire technical report. Commercially sensitive information: ore sorting technology, processing innovations, supplier agreements: can stay confidential.
That's not a loophole. That's by design.
But it creates asymmetric information conditions. An Australian junior can announce a maiden resource without revealing the assumptions that drive NPV calculations. A Canadian junior must show all its cards.
Which system protects investors better? Depends whether you think transparency always equals protection.
Canadian regulators have become increasingly aggressive about resource classification. The Batero case demonstrated this: securities authorities challenged resource estimates that included mineralization outside economically viable pit shells. The message was clear: if you can't mine it profitably, don't call it a resource.
JORC competent persons have more interpretive latitude. The standard explicitly acknowledges that reasonable people can disagree on classification boundaries.
Qualified Person vs Competent Person: Why This Matters for Valuations
NI 43-101 specifies strict requirements for "qualified persons": minimum five years relevant experience, good standing with professional association, specific educational credentials.
JORC's "competent person" criteria are somewhat less rigorous. The focus is on demonstrating relevant experience rather than checking credential boxes.
Both sound reasonable. Both generally produce quality work.
The difference emerges in edge cases. A metallurgist with deep expertise in a specific processing method might qualify as a JORC competent person for resource estimation but fail NI 43-101's stricter requirements.
This creates jurisdictional arbitrage. A project that struggles to meet NI 43-101 scrutiny might find friendlier reception under JORC reporting. Not because the geology changed: because the regulatory philosophy did.
Economic Assumptions That Kill Deals
NI 43-101 requires commodity prices based on three-year historical averages, subject to a reasonableness test. You can't assume copper at $6/lb just because you believe the energy transition will drive structural deficits.
Other jurisdictions allow more forward-looking assumptions.
That difference alone can swing project NPV by hundreds of millions.
Consider a copper-gold porphyry project evaluated in 2024. Under NI 43-101, you're using a three-year average that includes 2022's commodity price surge, 2023's correction, and 2024's range-bound trading. Call it $3.85/lb copper.
Under less restrictive frameworks, you might justify $4.25/lb based on supply deficit forecasts and energy transition demand.
On a 500 million pound project, that $0.40/lb difference equals $200 million in gross revenue. After costs and discounting, that's easily $80-100 million NPV swing.
Suddenly the same deposit looks like a tier-one asset versus a marginal project.
Neither assumption is "wrong." Both reflect different regulatory philosophies about what constitutes reasonable economic analysis.
The Trade Secret Exclusion Nobody Discusses
JORC explicitly permits companies to exclude information deemed trade secrets. Process flowsheet innovations, proprietary extraction methods, or unique commercial arrangements don't need public disclosure if the competent person agrees they're legitimately confidential.
NI 43-101 reporters have no such option. Material information is material information.
This has real consequences for resource development. An Australian company developing breakthrough processing technology can protect that competitive advantage while still reporting resources. A Canadian company must disclose or face non-compliance.
Which system encourages innovation? Which system protects shareholders?
The answer isn't obvious.
What Investors Actually Need to Know
Neither standard guarantees investment success. Properly compiled reports under either system may reflect deposits that ultimately prove uneconomic.
The geology doesn't care which reporting code you used.
But the valuation does.
When comparing projects across jurisdictions, investors need to understand:
Disclosure depth: Has the company published a full technical report or just a summary announcement? What assumptions remain undisclosed?
Economic parameters: What commodity price assumptions drive the economic analysis? What's the sensitivity to price changes?
Resource classification: How much material sits in measured versus indicated versus inferred categories? How conservative was the classification approach?
Qualified/competent person credentials: Who signed off on the report? What's their track record on similar deposit types?
Regulatory environment: Which securities regulator oversees the company? How aggressively do they challenge resource estimates?
The Valuation Framework That Actually Works
Smart investors don't rely on reported NPV figures. They rebuild the economic model using standardized assumptions.
Here's the framework that separates signal from noise:
Normalize commodity prices: Apply consistent three-year averages across all projects, regardless of reporting jurisdiction.
Standardize discount rates: Use 8% real for development-stage assets, 5% for operating mines. Adjust for country risk.
Haircut inferred resources: Apply 50% probability weighting to inferred material. It's not bankable.
Stress-test capital costs: Add 25% contingency to reported capex estimates. Projects almost always run over.
Model permitting risk: Discount NPV by 30-40% for projects without major permits in hand.
This approach eliminates the jurisdictional noise. You're comparing geology and economics, not reporting standards.
The Uncomfortable Truth About Technical Reports
The real secret experts don't want you to know: even rigorously prepared feasibility studies are often wrong.
Not fraudulent. Just wrong.
Geology is uncertain. Metallurgy is variable. Capital costs escalate. Operating assumptions prove optimistic.
The reporting standard doesn't change that reality.
JORC and NI 43-101 both provide valuable frameworks for disclosure. But they're tools, not truth-delivery systems.
The smartest investors treat technical reports as starting points, not endpoints. They hire their own qualified persons to review the geology. They visit the site. They talk to local contractors about actual costs.
They understand that no reporting code can eliminate project risk.
What This Means for 2026 and Beyond
Canadian regulators continue tightening NI 43-101 enforcement. Expect more challenges to resource classifications that push boundaries.
JORC is undergoing another update cycle. The competent person requirements may tighten slightly, though the fundamental philosophy won't change.
Meanwhile, the valuation gap between identical projects reported under different standards persists.
For investors, that creates both risk and opportunity. Risk if you take reported valuations at face value. Opportunity if you understand how to normalize across reporting jurisdictions.
The mining industry will keep debating which standard is "better." That's the wrong question.
The right question: which assumptions are you using to value this specific deposit, and how do they compare to global benchmarks?
Answer that, and the reporting code becomes footnote rather than headline.
The geology remains the same regardless of which standard you choose. But the story you tell about that geology: and the valuation multiples investors assign: can vary wildly.
That's not a bug in the system. That's the system working exactly as designed.
