Petra Diamonds' suspension of production at its Finsch mine under a formal business rescue process dominated mining news, while high-grade drill results from Caledonia Mining (AIM:CMCL) at Motapa North and a standout zinc intercept from Shuka Minerals (AIM:SKA) at Kabwe underscored the day's exploration momentum. Elsewhere, commissioning milestones at Premier African Minerals (AIM:PREM) and Cornish Metals marked incremental but meaningful operational progress across the sector.
Petra Diamonds suspends Finsch as business rescue begins
Petra Diamonds suspended production at its Finsch mine in South Africa after appointed business rescue practitioners took custodianship of the operation. The practitioners will now prepare a formal rescue plan for submission to creditors. The suspension marks a significant escalation in the company's financial difficulties, removing one of its core producing assets from active operation while the restructuring process runs its course.
Caledonia Mining schedules maiden Motapa resource for Q3
Caledonia Mining Corporation (AIM:CMCL) reported high-grade drill results from the Motapa North target at its Bilboes project in Zimbabwe, with consistent intersections supporting a maiden resource estimate scheduled for the third quarter. Executive chairman Mark Learmonth described the results as demonstrating "the potential to enhance Bilboes' long-term value," noting that the proximity of the mineralisation to planned Bilboes infrastructure could allow a substantial resource to be defined efficiently. The shares eased 0.67% to 1,480p.
Shuka Minerals hits 29.58% zinc over 19m at Kabwe
Shuka Minerals (AIM:SKA) reported its strongest drill result to date from the Kabwe project in Zambia, with the third hole, KBDD03, returning 29.58% zinc over 19 metres from 221.10m to 240.10m based on preliminary portable XRF readings. The intercept adds further weight to the high-grade zinc system being defined at depth, and the shares edged up 0.94% to 2.675p on the news. Final laboratory assays are pending.
Premier African Minerals produces first spodumene concentrate at Zulu
Premier African Minerals (AIM:PREM) reached a commissioning milestone at its Zulu lithium project in Zimbabwe, producing an initial spodumene-bearing concentrate from the newly commissioned flotation plant. Internal assay results remain preliminary and grades are still below target, though the company reported improvement as commissioning progresses. The shares fell 3.22% to 0.021p, reflecting investor caution while the plant works toward design performance.
Fulcrum signs contract to deploy cyanide-free pilot plant in Ontario
Fulcrum Metals (AIM:FMET) contracted Test Design Implement Solutions to deploy and operate a 2.4 tonnes-per-day pilot plant at its Teck-Hughes project in Ontario, using Extrakt Process Solutions' cyanide-free leach technology. The pilot is designed to advance processing of mine waste at the site and establish a repeatable recovery model applicable to similar assets. The shares slipped 2.59% to 9.01p.
Marula Mining targets June copper and manganese sales
Marula Mining confirmed plans to begin copper and high-grade manganese sales in June, though a planned 500-tonne trial shipment to Jindal Pelletising has been postponed after conflict in the Middle East disrupted shipping logistics and inflated costs. The company indicated it is working to reschedule the Jindal consignment while proceeding with other near-term sales activity.
Cornish Metals completes South Crofty process plant design
Cornish Metals completed the design phase for the South Crofty tin mine process plant in Cornwall, a key step toward construction. Chief executive Don Turvey highlighted that dewatering is now under way through the fully commissioned 195-level pump station, operational for the first time in over 28 years, marking a tangible physical milestone at the historic site.
ECR Minerals targets Raglan gold recovery improvement after Lidar review
ECR Minerals (AIM:ECR) outlined plans to improve gold recovery at its Raglan alluvial project in Victoria, Australia, following a Lidar survey and specialist operational review. The company identified the need to mine in the correct locations, process the right material, and optimise plant settings as the three levers for lifting output, and said the review findings would be applied directly to ongoing operations. The shares fell 6.25% to 0.225p.
