Critical Mineral Resources PLC Regulatory News (CMRS)

20 November 2025

Critical Mineral Resources Plc

Diamond core rig arrived on site

Critical Mineral Resources plc (“CMR”, “Company”) is delighted to announce the arrival of its diamond core drilling rig at Agadir Melloul, marking a major step forward that puts the project in an excellent position to accelerate drilling activity. The team is now focused on commissioning the rig as quickly as possible, with the first bore hole expected to be drilled during the first half of December.

Highlights

The Company’s fully refurbished Discovery HD track-mounted diamond core drill has arrived at Agadir Melloul.   Some important features:

The rig is expected to be operational during the first half of December, almost immediately doubling our drilling capacity.

Charlie Long CEO commented:

“It has been quite a journey for our Discovery HD rig and its arrival represents an important milestone for the project. The rig has undergone a comprehensive refurbishment and is effectively as good as new. With proper care, we expect it to deliver consistent performance for the next decade and provide significant per metre cost savings.

Multi Power, the manufacturer, was extremely supportive, generously installing a brand new feed cylinder, instead of resealing the original, replacing key components including foot clamp, and completely stripping and professionally repainting the mast. New Cat 308E tracks were also sourced and installed to ensure maximum efficiency.

The additional refurbishment and some shipping complications meant the rig arrived later than originally planned. It is a testament to our team on the ground, and the advantages of operating in Morocco, that once we knew of the delay, we were quickly able to secure the services of a trusted drilling contractor who began work immediately, ensuring that progress continued uninterrupted.

We are now carefully unpacking and inspecting all components, and with our newly appointed drill operator already in place, the team is ready to commission and bring the rig into operation without delay. The arrival of our rig puts us in an excellent position to significantly accelerate drilling and to advance on all fronts, simultaneously drilling both the sedimentary copper deposit and the exciting new Rhyolite discovery.

We look forward to seeing the Discovery HD drill its first holes in the first half of December”.

Fig.1 Discovery HD track-mounted diamond drill at Agadir Melloul

Source: Company

ENDS

Notes To Editors

Critical Mineral Resources (CMR) PLC is an exploration and development company focused on developing assets that produce critical minerals for the global economy, including those essential for electrification and the clean energy revolution. Many of these commodities are widely recognised as being at the start of a supply and demand super cycle.

CMR is building a diversified portfolio of high-quality metals exploration and development projects in Morocco, focusing on copper, manganese and potentially other critical minerals and metals. 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, the Company acquired an 80% stake in leading Moroccan exploration and geological services company Atlantic Research Minerals SARL.

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