Core Natural Resources drops after delaying restart of West Virginia coal mine

1 week ago 1
Coal falling from the moving belt conveyor into the big pile

keni1/iStock via Getty Images

Core Natural Resources (NYSE:CNR) -3.1% pre-market Monday after saying it has temporarily resealed a section of its Leer South mine in West Virginia after detecting elevated carbon monoxide levels during recovery operations following a combustion-related event that

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