Copper Fox Advances Van Dyke PEA, Plans Miami, Arizona Base

Copper Fox Metals Inc. (OTCQX: CPFXF) said work is progressing on an updated Preliminary Economic Assessment for its wholly owned Van Dyke in-situ copper recovery project in Arizona, and that it is establishing a permanent facility in Miami, Arizona, through subsidiary Desert Fox Van Dyke Co.

Copper Fox Metals Inc. (OTCQX: CPFXF) has told the market that work on an updated Preliminary Economic Assessment for its Van Dyke in-situ copper recovery project in Arizona is advancing, and that its wholly owned subsidiary Desert Fox Van Dyke Co. is establishing a permanent facility in the town of Miami, Arizona.

The company, which also trades as CUU on the TSX Venture Exchange and HPU in Frankfurt, owns 100% of Van Dyke. The progress report, carried by Critical Minerals Review, frames two parallel tracks: the technical and economic re-work of the project's numbers, and the physical footprint on the ground that any development-stage copper asset eventually needs.

What an updated PEA actually changes

A Preliminary Economic Assessment is the first formal pass at whether a mineral deposit can be mined at a profit. It combines a resource estimate with assumed metal prices, capital costs, operating costs and a recovery method, and produces headline outputs — net present value, internal rate of return, payback period, life-of-mine production. It is explicitly preliminary: under Canadian disclosure rules it may include inferred resources and cannot be presented as a demonstration of economic viability in the way a feasibility study can.

That is precisely why updates matter. A PEA is a snapshot taken under a set of assumptions, and every one of those assumptions ages. Copper price decks move. Sulphuric acid, power, labour and steel costs move. Drilling adds tonnes or reclassifies them. Engineering work narrows the range on wellfield design and recovery rates. When a developer says it is refreshing a PEA, it is usually because enough of those inputs have shifted that the old study no longer describes the project anyone would actually build.

Copper Fox has not, in this progress report, released the updated economics. Investors should treat the announcement as a milestone on the way to numbers rather than as the numbers themselves. The figures that will matter when they land are initial capital cost, cash operating cost per pound of copper, annual cathode production and the copper price used to generate the returns — the last of these being the single assumption most capable of flattering or flattening a study.

Why in-situ recovery is the whole story at Van Dyke

Van Dyke is an in-situ copper recovery project, and that distinction shapes everything about its cost profile. Conventional copper mining involves moving enormous volumes of rock: open pits, haul trucks, crushers, mills, tailings facilities. In-situ recovery skips most of that. A leach solution is injected through wells into the mineralised zone underground, dissolves the copper in place, and is pumped back to surface, where the metal is stripped out and recovered as cathode through solvent extraction and electrowinning.

The appeal is straightforward. Capital intensity is typically far lower than a conventional pit-and-mill operation, the surface disturbance is smaller, there is no conventional tailings dam, and the permitting conversation is different in character. The constraint is equally straightforward: the method only works where the geology cooperates — where the copper is in an oxide form the solution can dissolve, where permeability lets the fluid move, and where hydrology can be controlled well enough to satisfy regulators that the leach solution stays where it is supposed to stay. Underground injection permitting in Arizona is a substantive process, not a formality.

For a company of Copper Fox's size, the low-capital character of ISCR is arguably the point. It is the route by which a junior can credibly contemplate building something rather than selling the asset to a major.

A permanent address in Arizona's copper corridor

Miami, Arizona sits in the Globe–Miami district, one of the oldest and most productive copper areas in the United States. Establishing a permanent facility there is a modest capital commitment in absolute terms, but it is a signal of intent. Development-stage projects run for years on contractors, rented space and fly-in consultants; putting down a fixed base implies a work programme with enough duration to justify it — core storage, sample handling, field offices, a place for the permitting and community-relations work that in-situ projects require in unusual depth.

It also matters locally. The Globe–Miami area has lived through copper's full cycle more than once, and a developer that shows up with a lease and a staff presence is treated differently from one that shows up with a drill rig and a return flight. For ISCR specifically, where public confidence in groundwater protection is central to the permitting path, that presence has practical value.

Where the shares sit

CPFXF last traded at 0.48 as of 15:22 GMT on 2 September 2026, down 0.49% on the day, against a previous close of 0.49. The session range ran from 0.48 to 0.54 — a spread that says as much about the thin liquidity typical of a US over-the-counter listing of a Canadian venture issuer as it does about the news itself. The primary listing is on the TSX Venture Exchange, and the OTCQX quote will track it with a currency conversion and a wider spread.

The broader tape was firmer. The S&P 500 tracker was at $765.81, up 0.53%; the Dow tracker at $530.77, up 0.57%; and the Nasdaq 100 tracker at $708.96, up 0.19%. In other words, the stock's small decline came on an up day for US equities — a reminder that junior resource names trade on their own catalysts, and on the copper price, far more than on index direction.

What to watch from here

Three things determine whether this progress report becomes something more. First, the release of the updated PEA itself, and specifically whether the capital estimate has held up against construction-cost inflation. Second, the permitting sequence for underground injection and the water-quality conditions attached to it. Third, financing: a PEA with attractive economics is a fundraising document, and the terms on which a junior converts a good study into cash are what ultimately decide how much of the project its existing shareholders still own when copper is being poured.

Until the numbers are published, the honest read is that Copper Fox has confirmed it is doing the work, and has put a permanent roof over the people doing it.

Key facts

• Share price: CPFXF at 0.48, down 0.49%, as of 15:22 GMT on 2 Sep 2026
• Listings: TSXV: CUU; OTCQX: CPFXF; FSE: HPU
• Project: Van Dyke in-situ copper recovery project, 100% owned
• Subsidiary: Desert Fox Van Dyke Co., establishing a permanent facility in Miami, Arizona

Frequently asked questions

What is Copper Fox's Van Dyke project?

Van Dyke is an in-situ copper recovery project in Arizona that Copper Fox Metals owns 100%, held through its wholly owned subsidiary Desert Fox Van Dyke Co. The company is currently completing an updated Preliminary Economic Assessment on the asset and is establishing a permanent facility in Miami, Arizona, in the historic Globe–Miami copper district.

What does a Preliminary Economic Assessment tell investors?

A PEA is the first formal economic study of a mineral deposit. It pairs a resource estimate with assumed metal prices, capital and operating costs to produce outputs such as net present value, internal rate of return and payback. It is preliminary by definition, may include inferred resources, and cannot be relied on as proof of economic viability.

How does in-situ copper recovery differ from conventional mining?

In-situ recovery injects a leach solution through wells into the mineralised rock underground, dissolves the copper in place, and pumps the pregnant solution to surface for recovery as cathode. It avoids pits, haul trucks, mills and conventional tailings, which lowers capital intensity, but it requires suitable geology, permeability and strict groundwater controls.

Where does Copper Fox stock trade?

Copper Fox Metals trades on the TSX Venture Exchange under CUU, in the United States over the counter and on OTCQX under CPFXF, and in Frankfurt under HPU. The OTCQX line last traded at 0.48, down 0.49% from a previous close of 0.49, as of 15:22 GMT on 2 September 2026.

Why is a facility in Miami, Arizona significant?

Miami sits in the Globe–Miami district, one of the oldest copper-producing areas in the United States. A permanent facility gives Copper Fox a fixed base for core storage, sample handling, field offices and the permitting and community work that in-situ projects require, and signals a work programme long enough to justify the commitment.

What should investors watch next?

The key items are the publication of the updated PEA and its capital and operating cost estimates, the copper price assumption used, the underground injection permitting sequence and its water-quality conditions, and how the company finances any development. Financing terms determine how much of the project existing shareholders retain.

Sources

• Copper Fox Reports Progress on Van Dyke’s Updated PEA and Establishing Permanent Facility in Miami, Arizona — Critical Minerals Review

Photo: Wolfgang Weiser · Pexels Licence — source