Critical Metals plc (LSE: CRTM) has announced the completion of exploration target 3D block modelling at its Molulu Copper/Cobalt Project in the Democratic Republic of Congo, confirming the presence of copper oxide mineralisation. The company has also disclosed initial discussions with a potential offtake partner, with approximately 300 kilograms of bulk ore sample from existing stockpiles being tested for copper recovery potential. The announcement marks a meaningful step forward in the company's exploration programme at the ex-producing Katanga Copperbelt asset, where Critical Metals holds a 70% interest. Investors will be watching closely for results from the bulk sample testing and the outcome of the independent third-party review.

Key Points

  • Critical Metals plc (LSE: CRTM) — a mining company focused on critical and strategic metals
  • Exploration target 3D block modelling completed at the Molulu Copper/Cobalt Project in the DRC, confirming copper oxide mineralisation
  • Circa 300 kg bulk ore sample being tested across Total Copper (TCu) ranges of 1%–1.5%, 1.5%–2%, and above 2% with a potential offtake partner
  • Investors should watch for independent third-party review results, follow-up drilling plans, and progress in offtake partner discussions

3D Block Modelling Confirms Copper Oxide Mineralisation Across Molulu Project

The completed 3D block modelling was built using available drilling data, soil sampling, trench data, and the company's ongoing quality assurance and quality control programme. The announcement states that results from the modelling increase the company's understanding of the mineralised areas and will inform the planning of the next phase of drilling. Critical Metals noted that next steps include interpreting the modelling results to better understand the geometry, distribution, and continuity of mineralisation, preparing an extraction schedule for the exploration target, and undertaking an independent third-party review of the findings. Follow-up drilling to understand the mineralisation extension is also planned.

300 kg Bulk Sample Testing Targets Acid-Soluble Copper Recovery at Molulu Stockpiles

Alongside the modelling work, Critical Metals disclosed that it is collaborating with a potential offtake partner to test approximately 300 kilograms of ore drawn from existing on-site stockpiles. The testing is designed to evaluate sample recovery across three Total Copper grade ranges. The company noted that efficient solubility and recovery of copper oxides in acidic environments are essential for sustainable mining operations, and that optimising leaching and extraction techniques remains a key focus for the project. Chief Executive Danilo Lange stated that this could provide an opportunity to release value from material already on site while exploration advances.

Molulu Project: Ex-Producing Katanga Copperbelt Asset with 70% Critical Metals Ownership

The Molulu Copper/Cobalt Project is an ex-producing mine situated within the Katanga Copperbelt in the Democratic Republic of Congo, one of the world's most significant copper and cobalt producing regions. Critical Metals holds a 70% interest in the project, with DRC-based partners retaining the remaining 30%. The company is majority owned by NIU Invest SE, an investment company headed by Austrian investor Cevdet Caner, which holds a 52.07% stake in Critical Metals. Operating in the DRC carries country-specific risks, including regulatory and operational challenges that investors in the critical metals sector will recognise as material considerations.