Reduction in output planned by Rio Tinto from its 35-year-old Boyne Island aluminium smelter because of soaring power prices and fear of interruptions. This will also lead to job cuts.
Value of lost output BHP Billiton's Olympic Dam smelter in South Australia due to a blackout in October following a fierce storm.
Cost of repairs at Nyrstar's lead refinery in Port Pirie. A power outage resulted in slag solidifying in a blast furnace, rendering it inoperable and therefore needing the repairs.
a year aluminium smelter shutdown by Alcoa faced with high costs and tough competition from new, more efficient Chinese smelters.