Critical Mineral Resources PLC

Agadir Melloul Project

Critical Mineral Resources PLC ('CMR') is pleased to announce details of the Agadir Melloul sedimentary copper project in Central Morocco, the acquisition of three additional permits in the same district, exclusivity on a further six permits, together with the terms of its definitive joint venture agreement. CMR and the Joint Venture partner now have a dominant position in the Agadir Melloul district.

In recent days, over fifty drill pads have been prepared, a testament to our team on the ground and the project's favourable topography. Diamond core drilling will begin very shortly.

Highlights:

CMR is earning into 60% of the Agadir Melloul sedimentary copper project, previously referred to as the SHC Project, which CMR believes will develop into a significant new Moroccan sediment-hosted copper and silver discovery.

·    The board and management team is reiterating its Initial Exploration Target of 150,000 to 200,000 tonnes of contained copper at a 1.2% copper equivalent grade

The Joint Venture partner has completed sufficient exploration and technical work on the project to fast-track development and move straight into confirmatory drilling and feasibility studies. Key information:

·    Trench results include copper and silver grades of 27m at 2.9% and 25 g/t; 12m at 1.9% and 61g/t; 10m at 1.5% and 12 g/t; 7m at 3.1% and 45 g/t; and 5m at 2.2% and 32 g/t

·    Surface and near surface mineralisation over a 1.5km strike length has been trenched and modelled by a leading Moroccan resource geologist, underpinning an initial 750 to 1,000 tonne per day open pit mine development plan (the 'Initial Mine')

·    First phase metallurgical test-work results include 80% copper and 61% silver recoveries resulting in concentrate containing 26% copper and 72g/t silver

·    Water pumps within the project boundaries demonstrate local availability of water

Agadir Melloul is a geological analogue of the 130 million tonne Tizert Project, 55km to the west. The main shared geological characteristics are:

·    Sediment hosted copper and silver systems

·    Mineralisation found at and near the contact between the Precambrian basement and Infracambrian (c.550mya) sedimentary rocks

·    Mineralisation, dominated by chalcopyrite, chalcocite, bornite and malachite, predominantly found in limestone, dolomite and conglomerate sediments

In addition to the three permits transferred into the SPV by the Joint Venture partner ("CMC Permits"), in recent weeks the SPV has acquired three new permits as well as securing exclusivity on a further six which are now undergoing technical due diligence. In summary:

·    Trenching and the initial copper-silver discovery made on the CMC Permits

·    The Project's land package now consists of six permits, providing CMR and its Joint Venture partner with a dominant position in the Agadir Melloul district

·    This six permit footprint is expected to increase in the short term, in part due to the six permits under exclusivity, with permitted ground likely to exceed 150km², of which >100km² contains sedimentary rocks and the target Adoudounian unit

Charlie Long, CMR's CEO commented:

"It is extremely pleasing to announce details of this game changing transaction, which moves CMR from rock-kicking explorer to project developer with an awesome asset. It has taken two years and a huge amount of work since we first visited Agadir Melloul to get to this point. And despite having visited many excellent projects, some of which we optioned and explored, Agadir Melloul has always been our priority target.

Together with our strategic investor, we believe the existing sampling data, derived mostly from trenching, underpins the initial mine project of a 750 to 1,000 tonnes per day flotation plant, and significantly derisks our investment. While the potential for a much larger discovery, which we are calling the strategic resource strategy, provides for a very exciting and potentially very high return investment case for both current and future shareholders.

Once drilling commences during the next week or two, assay results will be quick to follow and Agadir Melloul news flow shall be maintained in the months and years to come".

Russell Tucker commented:

"In recent weeks the team has secured exclusivity over six permits in the Agadir-Melloul district, transactions we have been working towards since Q3 2024. We also very recently completed the purchase of three further permits in the area and, as a result, now have six important permits and district control. We firmly believe that Agadir-Melloul will be a significant sedimentary copper discovery. Indeed, through trenching at Zone 1 the first discovery has already been made, and as such the CMR investment case is not simply exploration but rather resource definition and mine development.

CMR's strategic input during the last nine months has resulted in a much larger project footprint, therefore maximising the ultimate scale of the resource. Now our job is to build the resource and an open pit mine, and to continue drilling out the district as we pursue a strategically important discovery. In my opinion both the initial mine development and the strategic resource strategy will add considerable value for CMR shareholders."

Joint Venture Agreement

As previously announced, CMR has entered into a definitive joint venture agreement ("JVA") with Coppernicus Mining Company SARL AU ("CMC", "Joint Venture partner"). Pursuant to the JVA a new special purpose vehicle ("SPV") called AgaMel Minerals SARL has been incorporated to hold the three CMC Permits and to both apply for and purchase all Additional Permits including three recent acquisitions.

CMR now holds an initial interest of 10% in the SPV and the earn-in structure allows CMR to acquire up to a 60% interest in the SPV. CMR also holds an initial interest of 50% in three of the Additional Permits and this ownership will also increase to 60% once the JVA terms have been satisfied.

Other key terms of the JVA include:

·    Initial consideration of US$100,000 has been made to acquire a 10% interest in the SPV;

·    CMR will acquire an additional 10% of the SPV by funding the purchase of targeted Additional Permits;

·    Work programme to include acquiring or procuring a diamond drill rig and to complete an initial 10,000 metre drill programme to delineate a measured and indicated resource and produce an NI 43-101 or JORC resource estimate;

·    Following completion of a feasibility study, an EIA and a construction decision, CMR will acquire an additional 10% interest in the SPV (taking its ownership to 30%);

·    CMR's interest in the SPV will increase by a further 20% to 50% by funding construction of a 750 to 1,000 tonnes per day mine;

·    CMR's interest in the SPV will increase by a final 10% after making an optional payment of US$1,200,000, thereby taking CMR's interest in the SPV to 60%;

·    The management committee of the SPV will consist of four directors with two being nominated by each of CMR and CMC;

·    CMR to invest a minimum of US$900,000 or 9,000,000 MAD into the SPV;

·    The SPV currently owns 6 permits including 3 permits where CMR has a contractual 50% ownership. CMR has an initial 10% in the remaining 3 permits in line with its ownership of the SPV into which it is earning 60%.

Moroccan team

The development of Agadir Melloul is being driven by CMR's Moroccan team, led by our COO Noureddine Sabraoui, our very experienced Joint Venture partner and supported by mostly Moroccan technical and geological services providers such as Afrilab in Marrakesh, one of the leading assay and metallurgical testwork laboratories in Africa.

Location and infrastructure

The Agadir Melloul Project is located 240km east of Agadir and within the Agadir-Ida-Ou-Tanane Prefecture. Sealed roads and grid power run through the property providing essential infrastructure. The landscape is varied but it is generally a very favourable drilling environment, particularly at Zones 1 and 2 which benefit from large areas of flat and gently undulating rocky terrain.

Fig 1. Location map

Trench Results

Trenching has delivered consistent copper and silver grades. CMR anticipates grades will likely vary across the project, however the initial area explored by the Joint Venture partner produced the following results, demonstrating surface and shallow mineralisation. Please note that the shorter trenches (e.g. TAM12) are due to overburden.

Table 1. Trench results

Mineralisation and exploration potential

The decision to invest in Agadir Melloul is primarily based on trenching, mapping and geochem work undertaken by the Joint Venture partner, supported by CMR field work, technical and legal due diligence.

Based on this data, it is the Board's view that a ten million tonne resource grading circa 1.2% copper equivalent would be a worst-case scenario, a view shared by our strategic investor and underpins our 15 to 20 million tonne Initial Exploration Target grading 1.2% copper equivalent.

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Larger scale target

Several features of Agadir Melloul suggest potential for the discovery of a much larger resource than the Initial Exploration Target. Within the six permits currently owned by the SPV, mapping and sampling by the geological team has demonstrated a total of 12km of strike length, of which an estimated 75% is showing copper and silver mineralisation.

As a sediment hosted copper system, there is excellent potential for mineralisation to be widespread. The 12km of strike extension is expected to increase as CMR completes certain acquisitions, plus there is an expectation that copper-silver mineralisation  extends laterally, connecting the outcrops on the eastern and western flanks, albeit with varying grade, thickness and continuity.

On the western flank of the deposit, in Zones 1 and 2, copper mineralisation is predominately hosted by limestone and dolomite, often in contact with basement. In Zones 3 and 4, copper mineralisation is also found hosted in limestones and dolomitic limestones on or near the contact with the basement. The straight-line distance from Zone 1 North (the trenched area with good surface mineralisation) to Zone 3 is approximately 10km to the southeast, and to Zone 4 is 5km to the northeast. 

Fig 2. Initial portfolio - excluding permits under exclusivity

* down payment made to secure permit; transfer expected to complete within 4 weeks

District Scale Footprint

The project currently consists of six permits and the SPV has recently signed exclusivity agreements over a further six permits ("Additional Permits"). These twelve permits cover approximately 80% of the target limestone in the central area of the district, giving CMR and our Joint Venture partner a dominant position in the district and maximising the probability of delivering a successful large scale copper resource ('Strategic Resource Strategy').

Development work completed

In addition to mapping, trenching, channel sampling and district wide prospecting work, the following works have been undertaken.

1. Metallurgical test work: flotation test work was undertaken by Afrilab in Marrackech and of 10 conditions, the best particle size was 80% at 120 micrometres (d80 : 120 mm), an intermediate particle size commonly used to maximise copper recoveries. Recoveries were 80.1% for copper and 61.25% for silver, producing a 26.97% copper concentrate containing 72g/t silver.

2. Mining licence application: during Q2 2025 the Joint Venture partner submitted an Environmental Impact Assessment and Feasibility Study in compliance with Moroccan Law No. 33-13 and Law No. 49-17. This covers the open pit mining at Zone 1 North.

3. Initial resource: the Joint Venture partner engaged an independent resource geologist who calculated a resource to international and Moroccan standards at Zone 1 North, which underpins a 750 to 1,000 tonnes per day mining operation. Although a modest sized resource, the tonnage is a direct function of the limited amount of trenching undertaken, and covers an area of 0.2km², a very small fraction of the overall project area.

Fig 3. Zone 1 North resource model

Note: resource model calculated by leading Moroccan resource geologist to an international standard. CMR has chosen not
to report the tonnage and grade of the resource given that it has not been reviewed by a JORC, SAMREC or NI 43-101
committee.

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Notes To Editors

Critical Mineral Resources (CMR) PLC is focused on developing a sediment-hosted copper and silver project in Morocco. The macro strategy is to produce critical minerals for the global economy, including those essential for electrification and the clean energy revolution. Many of these commodities, including copper, are widely recognised as being at the start of a supply and demand supercycle.

CMR identified Morocco as an ideal mining-friendly jurisdiction that meets its acquisition and operational criteria. The country is perfectly located to supply raw materials to Europe and possesses excellent prospective geology, good infrastructure and attractive permitting, tax and royalty conditions. In 2023, CMR acquired an 80% stake in leading Moroccan exploration and geological services company Atlantic Research Minerals SARL. In 2025, CMR signed a definitive joint venture agreement to earn-in to 60% of the Agadir Melloul sediment hosted copper and silver project.

The company is listed on the London Stock Exchange (CMRS.L). More information regarding the company can be found at www.cmrplc.com