RNS18 Mar 2026 07:49
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18 March 2026
Critical Mineral Resources Plc
2026 Work Programme and Drilling Update
Critical Mineral Resources plc (“CMR”, or the “Company”) is pleased to provide an update on drilling activities at the Agadir Melloul copper silver project and outline the 2026 work programme and key development milestones.
Two diamond drill rigs are currently operating on site, and drilling activity has accelerated following the replacement of a contractor rig which had experienced mechanical issues. Drilling rates are now exceeding 50 metres per day across the two rigs.
Core samples from both Zone 1 and Zone 2 continue to display visible sulphide mineralisation. Initial samples from the current drilling programme will be submitted for laboratory analysis shortly, with first assay results expected in mid to late April 2026. Subject to laboratory turnaround times, the Company intends to provide drilling updates approximately every four weeks thereafter.
Drilling progress
A total of 720m of core drilling was completed in February, reflecting a combination of adverse weather conditions and contractor rig breakdowns. These issues have now been addressed, with a replacement contractor diamond rig now on site while the Company’s diamond rig is operating at near full capacity.
With both rigs now operating effectively, the Company expects to drill close to 1,000 metres in March and intends to increase this rate to 1,200 metres per month in the coming months. The drilling programme is being actively managed as the geological model evolves, enabling work to focus on the most prospective zones identified to date.
Highlights
Two diamond rigs are currently in operation.
Copper sulphide mineralisation observable in core.
Drill programme being actively refined as the geological model evolves.
CMR’s diamond drill is performing extremely well, and the contractor rig has been upgraded.
2026 development timeline
Milestone
Target Timing
Metallurgical test work programme (laboratory and pilot plant)
May – Jun 2026
Process flowsheet development and preliminary plant design
By Jul 2026
Geotechnical studies
By Jul 2026
Processing plant Environmental Impact Assessment submitted
By Aug 2026
Maiden JORC Mineral Resource Estimate
Sept 2026
Mine planning and production scheduling studies
Oct – Nov 2026
Definitive Feasibility Study completion
Target Dec - 2026
Processing plant EIA approval
Target Dec - 2026
Drilling update
Diamond core is now being produced on a daily basis, and copper mineralisation in both sulphides and oxides is observable in core. Figure 1 below shows copper oxide and sulphide mineralisation from Zone 1. There will be a short operational pause this week for Eid al-Fitr, after which drilling will continue at approximately 50m per day.