Summary

Darren McLean sees mining as an unusually rich information-arbitrage market because public drill data can radically change an asset’s value before anyone analyzes it. Early in his career, he manually reconstructed an acclaimed gold deposit and concluded it contained roughly one-fifth of the assumed gold, making a $1.2 billion company effectively worthless. “All the data was there—they weren’t hiding it. It was all there; just no one had done any work on it.”
Mining investors routinely compare reported ounces or production while failing to qualify the underlying assets. McLean instead models the sequence from drill results through tonnage, grade, infrastructure, permitting, fixed costs and financing; one discovery can push a marginal project across an economic threshold and make it “worth five times as much.” Because few investors maintain that full problem set, “the marginal value of new incremental information is extremely high.”
A decade-long discovery drought and talent drain have tightened both the metal pipeline and the industry’s capacity to rebuild it. After the China-cycle collapse, iron ore fell toward $35, gold dropped in two legs from roughly $1,900 to a level transcribed as “12,300,” exploration budgets contracted and few young engineers accumulated meaningful mine-building repetitions. One experienced peer estimated only “four or five” contemporaries had overseen four builds; producing another such cohort could require 10–15 years.
Promotional geology flourishes because resource models are highly sensitive and failed mines rarely receive honest postmortems. McLean says that, in his view, most of the only projects advanced during the downturn were scams. He says gold block models are often wrong by 100% or more and that he has “never seen it too conservative”; unlike Bre-X’s physical assay salting, overstatement can be accomplished by “turn[ing] the knob a little” on an algorithm. Operational failures are then blamed on equipment or development rather than admitting the modeled stopes were never there.
Major miners are generally bureaucratic construction-and-engineering buyers, not entrepreneurial discoverers. They may take a 9.9% position and wait, but usually let juniors absorb exploration risk until an asset reaches “the altar.” Their growing index-driven scale compounds the problem: a rare $5 billion discovery barely moves a $70 billion company, pulling management farther from the two places McLean says mining creates value—“distress” and “the drill bit.”
Building the right mine can generate an extraordinary rerating, but financing duration and jurisdiction are inseparable from geology. Mine construction resembles an Everest summit attempt: investors assume debt and exposure to volatile variables, then race back “below the death zone” by repaying that debt. McLean says a Canadian producer that makes real money has, in his experience, traded at or been taken out at a massive premium to its net asset value. A mine in Mali cannot relocate when the French leave, Russians displace them and a junta takes control.
Capital sponsorship can transform a stranded asset, as the Lundin family’s arrival did for Montage Gold. Its Ivory Coast project needed more than $1 billion, scale and perhaps five years to repay construction capital—demands far beyond a roughly $100 million company’s strength. Once the Lundins effectively said, “We’ll take it from here,” McLean believed financeability changed by orders of magnitude, not merely by the size of their investment.
McLean’s blunt answer is that casual generalists will probably “get [their] face ripped off,” but obsessive specialists can earn exceptional returns. He says a prior strategy turned approximately $25 million Canadian into nearly a quarter-billion over the period he describes, and argues that $1 million could have compounded roughly 20 times. He separately says that running the strategy again for five or six years would show where one could end up. The attraction is falsifiability: predict the metal, rate, timing and cost, then learn whether “you were right for the right reasons”; when Muddy Waters’ contrarian longs work, “it pays 5x.”

Deep dive

1. Mining alpha begins where public data stops being read

McLean’s core premise is that mining offers unusually valuable incremental information. A new data point can literally double his estimate of a company’s value while its shares remain unchanged because almost nobody else has “that problem set built up” or understands how the new evidence alters the completed mosaic.
His formative case began in 2011, when an eminent Canadian mining financier endorsed an unnamed gold company and another investor proposed making it an 80% position. The company was worth about $1.2 billion, had just completed a $120 million bought deal and was widely expected to be acquired.
McLean downloaded every drill hole from the company’s website, plotted two-dimensional slices and calculated how much mineralized surface area each section required to support the claimed tonnage and grade. After manually modeling the deposit, he found roughly one-fifth of the gold the market expected: “On that basis, the company was worthless.”
Andrew Walker’s pushback—worth keeping—was that specialist mining analysts should resemble biotech experts who independently interrogate every important trial. McLean’s answer was more damning: the evidence was public, but “no one does this work.” Watching Carson publish on Sino-Forest also convinced him that, if he saw such a case again, he should put his reputation publicly at risk.

2. Asset value changes discontinuously while investors trade crude comparisons

McLean argues that most analysts, bankers and investors do not truly qualify mining assets; they search for things resembling other things. The resulting arbitrage can be as shallow as comparing two million-ounce producers, just as equity investors compare an 18-times-EPS company with one at 16 times without examining who will make the next 10,000 decisions.
His process works forward through conditional sequences: how much additional drilling could establish enough tonnage, whether grade covers fixed costs, and what power, water, permitting and time will require. A deposit sitting just below economic scale can be nearly worthless until one successful hit crosses the threshold and “suddenly…might be worth five times as much.”
Scarcity magnifies the payoff. McLean doubts there is room for even 20–30 investors worldwide pursuing this exact strategy; the openings are small, and he says he usually misses a couple each year for various reasons. An attractive financing window may contain just $20 million before the market figures it out. If 99% of sector activity is not oriented around this work, he says, behavior follows the market’s more “schmoozy, event-driven, kind of wink-wink, nudge-nudgy” activity.

3. A lost decade depleted discoveries and the people who can build mines

McLean entered mining in 2011 as the China supercycle’s “wild bender” ended. He watched iron ore fall into the $35 area, copper collapse and gold eventually sink in two legs from around $1,900 to a level the transcript renders as “12,300,” where it “lay on the mat” until roughly 2018–2020.
The capital collapse coincided with what he considers perhaps the driest discovery decade ever. Mining companies constantly consume themselves—“You’re consuming your company. There’s no terminal value here”—yet belt-tightening made long-dated exploration an easy expense to cut just as finding new deposits became harder.
The geological problem is physical: exposed copper porphyries can emit enormous signatures, while a modest dirt covering can conceal them. Even drilling a hole 1,000 metres deep from the surface has not become materially cheaper; McLean says a powered drill bit integrating real-time mineral scanning could transform global supply, but the industry has not solved it.
Human capacity contracted with exploration. Fewer students entered mining, available jobs and repetitions disappeared, and McLean’s experienced engineering peer estimated only four or five people his age had overseen four mine builds. If genuine competence takes 10–15 years, both talent and assets are highly inelastic just as a growing world needs more metal.

4. Promotional geology survives because failure rarely gets an honest postmortem

When metal prices collapsed, economically real projects stopped advancing—but promoters did not. McLean’s view was that, during that period, most of the only projects that advanced were scams, because marginal gold deposits could still be made attractive through resource-model assumptions even when genuine discoveries were out of the money.
Bre-X was the crude historical specimen: physical gold was allegedly added to assay samples, manufacturing a multibillion-dollar discovery that contained nothing. McLean’s distinction is that promoters need not “physically salt the gold”; nuggety distributions and sensitive algorithms let someone enlarge a resource simply by adjusting modeling parameters.
His practical warning is categorical: gold resources are “extremely easy” to inflate, block models are commonly wrong, and he has seen errors of 100% or more—but never a model he considered excessively conservative. The chain of assumptions also disperses accountability: “When you do it with algorithms, it’s not on you.”
Operating disappointments are similarly obscured. A miner may blame equipment or insufficient underground development while the evidence shows only one-third of the modeled stopes, then drill and “gopher” frantically without disclosing that the mine plan is broken. Because the market rarely performs a “high-IQ postmortem,” it concludes mine building itself is foolish; McLean’s correction is that “stupid people shouldn’t build stupid mines.”

5. Majors have become engineering buyers rather than entrepreneurial discoverers

Walker asked why companies with lower capital costs—Freeport was his example—do not discover and fund the best deposits themselves. McLean’s answer: most majors are bureaucratic organizations, often run by bankers, that “don’t really discover anything.” They prefer juniors to drill and de-risk an asset, then purchase it near the altar.
Early exploration also demands people unlike corporate operators: “ragtag” prospectors willing to take commercial flights, bush planes and long hikes before camping in grizzly country to test a thesis with a fractional chance of success. McLean cited Robert Friedland’s Kamoa-Kakula and Lukas Lundin’s high-altitude Vicuña discovery as feats of intrepid individuals, not institutions.
Site visits depend on the question. An operating underground mine must be physically inspected—reported numbers cannot reveal what is truly failing—while an exploration property can often be reconstructed through drill data, Google Earth, terrain and records. The principal advantage of visiting the latter is prolonged access to management for relentless questioning.
Majors’ recent scale-and-index strategy pushes them still farther from discovery. After years of poor equity demand, McLean says they devoured each other and grew so passive capital would be forced to own them through indexes. Yet a $5 billion discovery barely matters to a $70 billion miner: “The value in the sector is created in two places. One is distress and two is in the drill bit.”

6. Building the right mine creates wealth, but jurisdiction never disappears

McLean calls mine construction “pretty much the most value-creative thing you can do in the sector,” with execution creating value at a higher rate than M&A. A successful mine becomes a miniature economy—jobs and infrastructure appear, debt gets repaid, cash accumulates—and a sensible operator can earn a large rerating while the project remains unproven.
His jurisdictional observation is that a Canadian producer that makes real money has, in his experience, traded or been acquired at a massive premium to underlying net asset value. In harder countries, mines may be permitted and built faster, and Chinese buyers may pay more because ownership also provides infrastructure and a way to own more of the country.
That speed comes with immovable political exposure. McLean used Mali as the warning: five calm years persuaded investors that the French presence and regional stability made it safe; then the French departed, Russians displaced them and a junta took control. Unlike Apple moving manufacturing, “you can’t pack up your mine and go.”

7. Strong hands can turn a stranded asset into a financeable one

Much of today’s mining capital is “follower capital.” Traditional mutual-fund managers have disappeared or moved up-cap under liquidity, share-price and diversification constraints, while investors avoid exploration and development checks that might require follow-on funding. Even with gold around $3,300 in the conversation, good assets without credible leads can remain stranded.
That leaves companies associated with the Lundins or Pierre Lassonde disproportionately able to raise money. Followers believe those sponsors will capitalize projects, lead from the front and ensure they “make it across the desert to the other side.” McLean sees that confidence itself as an investable variable.
Montage Gold illustrated the mismatch. Its Ivory Coast project was good but required scale, more than $1 billion of construction capital and perhaps five years to recover the investment. At roughly a $100 million valuation, McLean judged the asset’s demands “completely non-commensurate with the strength of the company.”
The Lundin family’s financing effectively declared, “Okay, we’ll take it from here.” McLean bought heavily because their presence resolved the capital weakness, yet the market initially rerated Montage only modestly. To him, sponsorship made the project manageable and therefore worth “orders of magnitude more,” with a path from a fraction of NAV toward full NAV.

8. Generalists should either specialize deeply or stay away

McLean’s immediate answer on casual generalist participation was “no.” Mining profits appear suddenly, the ground is always shaking and fast-created money “destabilizes human logic”; he sees few outsiders enter and succeed. Comp-sheet investing—“It’s got a million ounces; I think that’s a buy”—is especially dangerous.
A shrewd generalist can still study people, share structure and capital flows, then follow credible sponsors. Alternatively, someone can build technical expertise from scratch as McLean did: he had no mining education, manually interrogated data and deliberately pursued tasks other people would not attempt. “The door’s wide open” for the dogged.
His game-selection analogy is poker: do not seek a heads-up match with Phil Ivey when highly capitalized hedge funds already chase the same information. Mining resembles finding a table of wealthy Macau visitors who can lose $100,000 for entertainment; less capital can be deployed, but the informational edge and prospective percentage return are far greater.
McLean says his prior strategy turned approximately $25 million Canadian into nearly a quarter-billion over the period he describes. He then says that running it again for a five- or six-year period would show where one could end up, and that $1 million could have achieved roughly 20 times over the relevant period. The deeper appeal is accountability: forecast the quantity, rate, timing and cost of physical metal, and “you know if you’re right or you’re wrong.” Muddy Waters’ longs are equally contrarian—and when right, “it pays 5x.”

[AIEWF Preview] Containing Agent Chaos — Solomon Hykes John Zito - Inside Apollo - [Invest Like the Best, EP.426]