Gold mine plant had closed after 'alarming increase' in COVID-19 cases.
Diamond operation underwent cost reductions, is restarting this month.
Excelsior Mining preferring "small-scale activities" for now.
Chiliean producer will bring mines back online after pandemic fears.
Owner Edenville Energy fast-tracks restart plans for Tanzanian coal project.
Romanian polymetallic mine gets last of equipment deliveries.
Phased restart to begin mid-July.
Vale aiming for July resumption of operations.
Underground development work expected to restart July 1.
The faster restart is hoped to help the Peruvian economy to recover.
Underground South African mine had large number of positive COVID-19 cases recently
Shutdown due to COVID-19 had been ongoing since late March.