Australian manufacturers facing massive increases in gas prices are warning they could be forced to shut, with tens of thousands of jobs on the line.
Gas prices on the spot market have quadrupled amid supply constraints, local coal-fired power station outages, and the war in Ukraine.
Australia's largest plastics producer Qenos buys about 40 per cent of its gas on the open market.
"Prices have gone up in the spot market to between $30 and $40 a gigajoule. In fact, that's in a month alone, that's an increase of 300 to 400 per cent," Qenos chief executive Steve Bell said.