Solvay has signed a Letter of Intent with Viridis Mining and Minerals to process Brazilian rare earth materials at its La Rochelle plant in France, targeting a strategic supply by 2028 to bolster non-Chinese feedstock. The agreement centres on Viridis’ ionic clay rare earth projects in Brazil, with Solvay providing separation and refining capacity at an established solvent-extraction and roasting facility. For project developers, the move signals continued demand for clay-hosted REE resources and reinforces the importance of downstream-compatible mineralogy and impurity control in new deposits.

Tailings retreatment of legacy tailings storage facilities is emerging as a major opportunity, with SLR Consulting’s Asset Transition and Closure lead Danie Otto pointing to rapid shifts in project scale, processing technology and regulatory expectations. Operators are reassessing old TSFs as potential ore sources, using modern reprocessing circuits and improved metal recovery techniques to extract residual value while reducing long-term geotechnical and water-related liabilities. The approach is reshaping closure planning, with TSF stability, residue re-deposition strategies and progressive rehabilitation now integrated into upfront project design.

Sandvik and Rio Tinto are jointly developing integration of Sandvik i-series surface drill rigs with the Rio Tinto Autonomous Drilling System (Rio Tinto ADS™), initially targeting support drilling in open pits. The work couples Rio Tinto’s existing autonomous and remote drilling operations with Sandvik’s AutoMine® automation platform to create a common control and data interface. For mine operators, the move signals future options to standardise autonomous blasthole and support drilling fleets across mixed-vendor rigs, with potential reductions in manual exposure around highwall support and pre-split drilling.