Most junior miners follow a familiar script. Find a deposit, drill it for years, publish a study with a headline-grabbing net present value, then discover nobody will fund the £300 million construction bill.
Critical Mineral Resources PLC (LSE:CMRS, FRA:98J) is attempting something different.
The AIM-listed explorer, valued at less than £10 million, is developing the Agadir Melloul copper and silver project in Morocco's western Anti-Atlas mountains.
Its plan is to get into production quickly and cheaply, built the Moroccan way, with oversight from top-quality Western consultants, and then use the cash to fund a far larger exploration push across the surrounding district.
What the company owns
CMR is earning up to 60% of Agadir Melloul through a staged joint venture with a prominent Moroccan family.
It holds 20% today. Completing a feasibility study and committing to building a mine takes it to 40%. Construction, plus a $1.2 million payment to the vendor, delivers the full 60%.
The company has also acquired two permits to the south-east with historical workings, one to the north and is closing on two more to the north east. All five will be owned 50:50 but will be end up 60:40 in line with the joint venture.
The prize is a district-scale, sediment-hosted copper system. Mineralisation outcrops over 12 kilometres across four zones, and sits at or near surface.
Only around 5% of the ground has been drilled. Even so, seven months of work have produced an internal resource model at Zone 1, and a mining licence has been issued covering Zones 1 and 2.
Drill results include 10 metres at 1.1% copper with 20 grams per tonne of silver. A separate rhyolite discovery at Zone 2 returned 6 metres at 1.4% copper and 30 grams of silver, with gold intercepts up to 4.5 grams per tonne.
The company's exploration target is 20 to 25 million tonnes at 1.2% copper equivalent.
A line in the sand
The next milestone is a maiden JORC-compliant resource, targeted for the third quarter. Resource consultants are being engaged now, and chief executive Charlie Long is keen to frame what the number will, and will not, represent.
The target is an initial resource of three to five million tonnes, mostly in the measured and indicated categories, with some inferred. That is deliberate. It reflects the drilling completed on a small fraction of the land package and is designed to underpin the first mine, not to capture the project's full potential.
Long calls it a line in the sand. The 20-to 25-million-tonne exploration target stands, and the land package behind it is still growing.
The Tizert template
Why does the geology excite? Some 55 kilometres away sits the producing Tizert mine, one of the largest copper operations in North Africa.
Tizert started life as a resource of just 1.1 million tonnes at 2.3% copper. Systematic drilling has since grown it to 130 million tonnes at 0.9% copper with silver credits, and a planned output of 120,000 tonnes of copper a year.
CMR believes Agadir Melloul is a direct geological analogue at the very start of the same journey. One of its senior technical advisers spent several years at Tizert.
Long is careful with the comparison. The belt is too young, he concedes, to know whether it hosts high-grade zones or how continuous the mineralisation proves. What his team keeps finding are large patches of ore, always near surface and always big enough to mine.
Small plants, quick payback
The development philosophy is where CMR departs most sharply from the London junior template.
Rather than a single large mine designed to please project financiers, the company plans an initial operation of 600 to 1,000 tonnes per day, built by Moroccan contractors using local flotation expertise.
The plant, tailings and earthworks would be expected to cost about $7.5 million. With a mining fleet and working capital, the all-in figure could reach $15 million if CMR chooses to buy its own mining fleet. On those numbers, the back-of-the-envelope payback is roughly three years.
Long's arithmetic puts capital intensity at $6,000 to $10,000 per tonne of annual copper production. A typical western-built mine, he argues, now costs about $20,000.
Metallurgical test work at SGS-certified Afrilab in Marrakesh supports the approach, with copper recoveries exceeding 80% before optimisation and a clean 27% copper concentrate that carries silver.
If the resource grows as hoped, the model is to replicate rather than supersize: two or three 1,000-tonne-per-day plants across the property, each expandable, each modest in capital terms.
Feasibility work is being handled by Mining RX of South Africa, with an environmental impact assessment for the plant underway, and an environmental permit for extraction already issued. A construction decision is targeted for early 2027, with production from 2027 or 2028.
Funding the plan
CMR is not blind to the state of the London small-cap market, which Long describes in blunt terms. The answer has been to look elsewhere. We may hear more about this in the coming weeks and months.
For the mine build, metals traders hungry to secure copper supply are seen as natural partners, ideally alongside equity rather than heavy debt.
There is also a renewables angle. The project sits in one of Morocco's best zones for solar and wind, and the company is examining electric mining fleets and on-site generation. That could open doors to development lenders, including the IFC, and possibly UK export finance for battery storage.
The verdict
The catalysts stack up. A maiden resource within months, pilot-plant metallurgy, feasibility results, a construction decision and further permit acquisitions.
The risks are equally clear. The exploration target remains conceptual. CMR will own 60% of the project, not all of it. Mine funding is not yet secured, although metals traders are expected to do the heavy lifting.
But the logic is hard to fault. Low capital cost, quick payback, long mine life and growth funded by cash flow rather than dilution. This is the world of return on investment rather than financial engineering, as Long puts it.
If Agadir Melloul proves even a fraction of a Tizert, the current valuation will look like a rounding error.
