News: AWC UPDATE 1-Alcoa to mothball Western Australia alumina refinery, up to 1050 staff at risk, page-2

Plant is old and maintenance costs must be high
it operates at Cash costs $410/t compared to Pinjarra & Wagerup at $250/t, as reported in the announcements.
wonder what the energy cost component is ?
Bad news for the Perth southern suburbs.
Alcoa may be able to redeploy personnel but the job losses will result in jobs lost in other areas of the local economy.