Critical Mineral Resources (LSE:CMRS) has taken an important step towards the validation of upbeat in-house estimates from its own geologists, to a derisked and value-adding confirmation.
On Thursday, the company revealed it is putting its internal block model into the hands of independent third parties.
The appointment of Addison Mining Services to prepare an independent maiden resource statement, targeted for publication in October, is the moment the rubber hits the road for CMRS's estimate of roughly 25,000 tonnes of contained copper at its Agadir Melloul project in Morocco.
About the opportunity
Critical Mineral Resources is an AIM-listed exploration and development company, built around near-surface copper and associated precious metals in Morocco.
Its principal asset is Agadir Melloul, a copper-silver project where the company is targeting open-pit style mineralisation rather than deep, capital-intensive underground development.
The company has expanded its Moroccan footprint to include additional copper and silver ground, but Agadir Melloul remains the asset on which the investment case, such as it is, currently rests.
The stated strategy is narrower than the geology it describes.
Management has said it wants to bring a modest-sized initial mine into production quickly, funded with the minimum possible dilution, and use that platform to prove up what it believes could be a district-scale copper system.
It prioritises a smaller, fast-funded start ahead of a scale-up to larger targets.
The story so far
CMRS has been showing early drilling successes with a series of near-surface intercepts that the company presented as evidence of a coherent copper system.
Notable results included 5m at 1.20% Cu with associated gold and silver, and 3.7m at 1.76% Cu with elevated gold, with several intercepts running close to five metres true width against a two-metre target; numbers the company used to argue for an open-pit development scenario.
Chief executive Charlie Long said at the time that "these results continue to confirm a shallow, coherent copper system with widths and grades that are consistent with an open pit development scenario."
By June the programme had scaled up materially.
The 2026 drilling programme had completed 176 holes across 6,711 metres, with 172 assayed, returning laterally extensive shallow copper-silver mineralisation including intercepts such as 9.7m at 0.74% Cu and 4.46 g/t Ag from 25.2m.
Long described a widening picture: "the growing geological model continues to strengthen our confidence in the project's development potential as we advance towards a maiden JORC Resource Estimate."
By the end of July the company had pushed drilling coverage to close to 6% of the project area and produced an internal, non-JORC estimate of approximately 25,000 tonnes of contained copper, framed as equivalent to roughly $250m of net revenue at a $13,500 per tonne copper price. Fresh results reported included 6.9m at 0.45% Cu and 1.0 g/t Ag from surface, and 2.9m at 0.67% Cu and 2.5 g/t Ag from 11m, including a higher-grade section running 1.24% Cu. A hole intersecting more than 10 metres of mineralisation from 52 metres downhole, with massive sulphide enrichment noted at 66 metres, was reported with assays still pending.
That sequence of escalating disclosure, from isolated intercepts to a self-generated tonnage figure, set up the appointment that followed.
Thursday's step is procedural rather than geological; nevertheless is could prove vital in the unlocking of the project (depending upon the consultant's findings, of course).
Addison Mining Services began reviewing the project's geological, drilling and assay data and completed a site visit to inspect the mineralisation, work that will determine whether the company's internal tonnage estimate is corroborated, revised or superseded entirely by an independently compiled JORC statement.
Market view
The shares last traded at 1.85p, having seen a 52-week range spanning 1.5p to 5.5p.
In other words, the small-cap's share price is at an ebb, so investors will likely watch the upcoming resource estimates closely.
That trading range shows a stock that has traded at more than three times its current level within the past year and has since settled well below it, alongside a market capitalisation of approximately £5.6m.
In a sector where exploration companies routinely trade on the promise of a resource statement rather than the substance of one, CMRS sits at the pre-verification stage of that cycle: drilling results published, internal modelling disclosed, independent sign-off still pending.
What's ahead
The company has said the maiden JORC Mineral Resource Estimate is targeted for publication in October, and that it will initially cover roughly 5-6% of the current permit area, excluding the additional ground over which CMR holds exclusivity for future acquisition.
That framing matters for how any published figure should be read: it is explicitly a partial-area estimate, not a resource statement for the whole project.
Metallurgical testwork, geotechnical studies and an environmental impact assessment are running alongside the resource work, feeding into development and feasibility studies the company has said it is targeting to complete by year-end.
The company also said it plans to continue publishing assay results approximately every 4-5 weeks as drilling continues, meaning further intercept data is expected to arrive before the resource statement itself lands.
Management continues to describe a conceptual medium-term exploration target of 25 million tonnes, distinct from the near-term JORC estimate and explicitly caveated as requiring substantial further drilling and technical work to substantiate.
Looking ahead
Critical Mineral Resources arrives at its maiden resource statement having already told the market, in its own words, roughly what it expects that statement to contain.
An independent JORC estimate covering a fraction of the permit area, prepared by Addison Mining Services and targeted for October, will now test whether the internally modelled tonnage can stand on external verification.
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