Sibanye-Stillwater (JSE: SSW, NYSE: SBSW) said on Monday that an incident occurred at its platinum operations at Stillwater West mine in Montana that will suspend production for approximately four weeks.
During scheduled non-routine maintenance on the winder, which services the vertical shaft accessing the deeper levels of the mine. This incident resulted in structural damage to the shaft headgear, winder house and winder rope, the miner said, adding that there were no injuries to personnel from this incident and investigations into the causes of the incident are underway.
Last year, the Stillwater mine was halted for nearly six weeks, as the South Africa-based company worked on repairing damage caused after widespread flooding in Montana. Following an initial assessment of the impact of weather-triggered inundation and mudslides, Sibanye-Stillwater said at the time that its operations were largely unaffected.
The damage to the shaft infrastructure will require remediation, and access to the deeper levels of the mine will be impacted while remediation is underway. Access to the upper levels (above 50 level) of the Stillwater West mine and the Stillwater East mine are unaffected and production from these areas, as well as from the East Boulder mine, will continue.
Production from the Stillwater West mine below 50 level will be suspended until the remediation is completed, resulting in approximately 25,000 2Eoz to 30,000 2Eoz less production for the year.
Further guidance will be provided once shaft repair schedules are finalised and production schedules have been fully optimised given current shaft constraints, Sibanye said.
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