Mr TURNBULL (Wentworth—Prime Minister) (14:24): I thank the honourable member for her question. I will shortly ask another great South Australian, the member for Sturt, to add to this answer, but I would remind the honourable member that the government has made substantial commitments to infrastructure in South Australia, not least of which are the North-South Corridor, worth $1.7 billion; the Flinders Link rail project, which I announced in Adelaide not so long ago; the Oaklands Crossing and Marion Drive; and, of course, as the honourable member knows, massive investments in energy—the commitment to the solar thermal project in Port Augusta and the Cultana pumped hydro project, which has great prospects. But above all the honourable member talks about nation-building. Right across the nation, but in particular in South Australia, we have made the largest commitment to building a sovereign defence industry in our nation's history. We are building the largest commitment to sovereign shipbuilding capability in Australia, and the bulk of that construction is in the honourable member's state of South Australia. I will ask the Minister for Defence Industry to enlarge on this, because this is vital. We are building substantial infrastructure at Osborne, delivering jobs and investment in the honourable member's state. The SPEAKER: Just before I call the Minister for Defence Industry, the member for Mayo on a point of order? Ms Sharkie: On direct relevance—I asked the Prime Minister whether he would use Australian steel, not what projects he is doing. Will he be using Australian steel, in particular South Australian steel, for the rail project? The SPEAKER: The member for Mayo will resume her seat. As the member is aware, the Prime Minister has addressed part of her question and he has asked the Minister for Defence Industry to address the question. The Minister for Defence Industry has the call.