Rare earth minerals miner Steenkampskraal Monazite Mine (SMM) has launched a new phase of its development, with the start of construction on a new on-site laboratory and a comprehensive refurbishment and reclamation programme.

“The laboratory, one of the cornerstones of the initiative, is set to enhance the mine’s ability to refine its innovative concentration processes, ensuring operational efficiency and supporting long-term sustainability goals,” comments SMM CEO Graham Soden.

SMM operates the Steenkampskraal mine, in the Western Cape.

Soden says the new development project underscores Steenkampskraal’s commitment to advancing rare earth production responsibly, with a focus on optimising the extraction of monazite concentrate through a process called multi gravity separation (MGS) and a subsequent hydrometallurgical cracking process to produce mixed rare earth carbonate, thorium and Radium-228.

He says the on-site laboratory will serve as a critical hub for testing and improving the mine’s processing techniques, focusing on conventional gravity and flotation concentration methods.

The facility will enable SMM to fine-tune the MGS process, which is essential for producing high-quality monazite concentrate.

“In addition, having the laboratory on site offers several practical advantages: it allows for immediate analysis and adjustments during the concentration process, minimising downtime and reducing the need for off-site testing.

“This close proximity also facilitates real-time data collection, enabling the mine’s technical team to make informed decisions quickly, which is vital for optimising resource use and reducing operational costs,” Soden points out.

Further, he notes that the laboratory will support SMM’s broader sustainability objectives by helping to streamline processes, thereby reducing waste and improving the efficiency of rare earth extraction.

“This is a critical factor in meeting global demand for these materials, essential for technologies ranging from renewable-energy systems to advanced defence electronics,” he adds.

“The on-site laboratory will be instrumental in refining our processing techniques, ensuring we meet our operational targets efficiently,” says SMM executive chairperson Enock Mathebula.