Mr ABBOTT ( Warringah — Leader of the Opposition ) ( 14:00 ): My question is to the Prime Minister. I refer her to the comments of Mr John Hannagan, the Australian chair of the world's largest aluminium producer, Rusal, employing nearly 1,500 people in this country: The carbon tax is based on the very flawed assumption that our competitors are going to have similar carbon or energy policies. I ask: does she agree with Mr Hannagan? Won't the world's biggest carbon tax erode our international competitiveness, cost Australian jobs and ultimately close down the Australian aluminium industry?