GR Engineering Services has signed an EPC contract with Myamba Minerals, a Medallion Metals subsidiary, to redesign, procure, construct and commission the conversion of the existing Cosmic Boy Concentrator in Western Australia. The brownfield plant, originally built for nickel, will be reconfigured for Myamba’s processing requirements, allowing reuse of major infrastructure rather than building a new concentrator. For project engineers, the deal signals upcoming detailed process design, tie-ins to existing utilities and structural upgrades around the grinding, flotation and tailings handling circuits.

NRW Holdings’ Mining division has secured a Letter of Award extending its mining services contract at the Karara magnetite iron ore mine in Western Australia by five years, pushing the term from March 2027 to February 2032. The extension covers continued load-and-haul, drill-and-blast and ancillary mining services for Karara Mining Ltd’s large-scale, 8+ Mt/y magnetite operation, which uses high-pressure grinding rolls and magnetic separation. The longer tenure gives NRW greater certainty for fleet deployment, labour planning and maintenance scheduling across the Mid West project.

Crushing, conveying and screening circuits are identified as major sources of avoidable downtime in fixed plant, with bearing, gearbox and drive failures often traceable to misalignment, poor lubrication and contamination rather than design limits. A Motion–Timken webinar uses real-world case studies on crushers, screens and overland conveyors to show how condition monitoring, correct bearing selection and improved sealing can extend component life and reduce unplanned stoppages. Reliability engineers and maintenance planners are urged to focus on root-cause failure analysis and data-driven inspection intervals rather than reactive part replacement.