Let me get one thing straight before we start: Tocvan Ventures (TOC.C) is a junior exploration company with roughly C$2 million in the treasury, a 50,000-tonne pilot heap-leach program, and a resource estimate that doesn’t exist yet. If your financial plan involves this ticker, your financial plan is broken. Position sizing exists for a reason, and no position in a pre-resource junior should ever be large enough to matter to your retirement math. That said, if you insist on gambling a small, fully-lost-able slab of your net worth on speculative exploration, this is at least one of the more coherent stories in the sandbox.
The company is finishing its pilot plant at Gran Pilar in Sonora, Mexico, with a 50,000-tonne bulk sample targeted for completion in the first half of next year. New CEO Chris Gordon—the man who spent roughly 12 years at Integra Gold before Eldorado Gold acquired it for approximately C$600 million—sat down for an interview, and unlike most junior CEO interviews, which are pure vapor, this one contained some actual numbers. Refreshing. Low bar, I know.
The metallurgy: column leach tests delivered approximately 75-76% gold extraction at a ¾-inch crush and roughly 82% at ⅜-inch, with silver recoveries around 58% in the finer crush scenario. Here’s where Gordon surprised me by not being an idiot. The finer crush adds about six percentage points of gold recovery, but he’s leaning toward the coarser crush for the pilot anyway, because crushing costs money and heap permeability matters. This is basic engineering economics—marginal recovery versus marginal cost—and most juniors fail this test by chasing the prettiest percentage instead of the best margin. Six points of recovery on low-grade oxide ore might not cover the incremental crushing capex and opex. Running the pilot at ¾-inch to test real-world economics instead of chasing the cosmetic number? That’s the correct decision, and it depresses me that it’s noteworthy.
Also encouraging: agglomeration didn’t materially improve recoveries, meaning an entire processing step can potentially be deleted. Fewer steps, less reagent consumption, simpler flowsheet. Every deleted step is margin you keep.
On permitting, the numbers are actually good for Mexico right now. Tocvan got its infrastructure permit in about 30 days, valid for 10 years, and approval for the 67 supply trenches in roughly two weeks. Peers in Sonora are moving too—Heliostar got permits to expand La Colorada and started open-pit mining, Axo Metals secured a major environmental approval at San Antonio, Silver Tiger cleared environmental approvals for El Tigre. Industry reporting indicates over 80% of the identified mining permitting backlog in Mexico has been addressed. Anyone still repeating the “Mexico is uninvestable” line from the Fresnillo-era panic is trading on stale information, and stale information is expensive information.
The loaded carbon angle deserves attention because it’s clever for a company this small. Rather than building full downstream refining, they’d leach on-site, load the gold onto activated carbon, and sell the loaded carbon to a third party for processing. That’s outsourcing the capex-heavy part of the flowsheet. For a company with C$2 million, selling an intermediate product instead of building a refinery is not a compromise—it’s survival mathematics. Some buyers are apparently already asking for additional test work, which is at least a signal that counterparties see something tradeable.
Now, the resource estimate delay. Former CEO Brodie Sutherland (now Executive Chairman) was heading toward a maiden resource. Gordon paused it because the newly discovered El Mezquite zone—a 1.4-kilometre mineralized trend with intercepts like 48 metres of 0.8 g/t gold and 107 metres of 0.5 g/t gold—could materially change the project’s scale. The company’s argument: publishing a maiden resource that’s obsolete on arrival helps nobody.
Is that a legitimate engineering judgment or the classic junior move of perpetually deferring the milestone that would let you be valued? Honestly, it’s both, and you should hold both thoughts simultaneously. Publishing a small maiden resource invites the market to anchor on a small number. Waiting costs time, and time is dilution for a junior burning cash—every month of delay is a month closer to the next financing, and every financing dilutes you at the worst possible price. That’s the real cost nobody prices in. The counterargument, that El Mezquite plus newly consolidated 100% ownership of the original Pilar concessions (previously locked under a joint venture that made drilling the Main Zone economically irrational—why fund value for an asset you partially own?) justifies waiting, is at least internally consistent. And note what Tocvan did right:
