Amerigo Resources (ARREF / TSX:ARG)

What they actually do

Amerigo does not own a mine or an ounce of ore. Its sole asset is Minera Valle Central (MVC), a plant in Chile that sits downstream of Codelco's El Teniente — the largest underground copper mine on earth — and re-processes the waste. Two feedstocks: fresh tailings piped straight from El Teniente's current milling, and historic tailings dredged out of two old impoundments, Cauquenes and Colihues. MVC scavenges the residual copper and molybdenum, and hands the concentrate back to Codelco. It is a toll-processing arrangement: Codelco keeps title to the metal, and MVC is paid the gross market value of the copper it tolls less a sliding-scale "notional royalty" back to Codelco, less smelting, refining and freight.

Economically it is a spread, not a mine. No exploration, no reserves, no stripping, modest capex ($19M this year), no debt, and a plant that ran at 98% availability. Costs are power, labour and reagents — roughly $2.26–2.40 per pound gross, against ~64 million pounds a year. It is a genuinely good little business, run by a management team that returns essentially all of its cash: $41.7M of dividends and buybacks in the first half of 2026 alone, including a CAD$0.18 performance dividend declared in July.

But it has a maturity date. The DET Agreement runs to 2037 for fresh tailings; Cauquenes ends at the earlier of 2033 or depletion; Colihues at 2037 or depletion. When the contract ends, MVC has no ore of its own, no resource, and a depreciated plant sitting on someone else's land. This is a wasting asset with 11.3 years on the clock — closer in structure to a royalty stream with a hard expiry than to a copper miner. Valuing it with a perpetual-growth terminal value, which is what a standard ginzu run does, would be a category error.

The Take — why I would not own it here

The business is fine. The price is not. ARREF has gone from $1.68 to $6.28 in twelve months, a 274% move, tracking copper to an all-time high of $6.83/lb in August. Every dollar of that re-rating is a bet on the copper price, and the market has now capitalised a cyclical peak into a contract that expires.

Amerigo keeps far less of the copper upside than the tape implies. Between Q2-2025 and Q2-2026 the realised copper price rose $1.74/lb. Over the same span the notional royalty paid back to Codelco rose from $1.36/lb to $2.45/lb. Codelco captured 63% of the increment. The sliding scale was written to top out at 28.4% around $4.80/lb copper; the effective take is now ~36% of gross value, and the MD&A confirms the parties are renegotiating the terms because prices have been above the top of the scale since October 2025. Codelco — which just posted its lowest output in three decades, had a fatal collapse at El Teniente, and had to be handed $2.4B of retained profits by the Chilean state — is not walking into that negotiation looking to give Amerigo more. This is the rare situation where the stock's biggest tailwind is also its largest live downside catalyst.

The reverse-DCF is not close. To justify $6.28 with the contract running to 2037 at my base production and cost profile, you need copper to sit at $10.53/lb — 58% above spot — every year until expiry. Cut the discount rate to a charitable 9.0% and you still need $9.54/lb. Hold spot forever and stretch the contract to 2067 and you get $4.18. There is no coherent set of assumptions that reaches today's price.

And the current earnings are not normal earnings. Trailing EBIT is $96.7M; the five-year average is $38.7M. The market is paying 10x trailing EBIT and 25x normalised EBIT for eleven years of cash flow. Note the shape of the sensitivity grid below: value barely moves with the discount rate, because the cash flows are short-dated. You cannot discount-rate your way to $6.28. Only copper at $9–10/lb does it.

One more thing that is being missed. El Teniente's own output fell ~27% year-on-year through May 2026, and the Andes Norte expansion has been suspended for up to two years after seismic problems. Amerigo's throughput is nonetheless running at guidance. That is only possible because MVC is leaning harder on the historic impoundments — the finite ones that must last until 2033. Strong near-term volumes in a year of weak fresh-tailings supply are not a sign of strength; they are the asset being consumed faster.

Verdict: avoid as an investment; if you must be here, be here as a copper momentum trade with a stop, not as a holding. Fair value is $1.83 in the base case and $4.65 even if you grant a ten-year contract extension and $7 copper. A 5.75% dividend yield does not fix a 71% valuation gap — that yield is the asset paying itself out, not compounding.