The Swiss miner saw coking coal production in Australia fall 17 per cent during the March quarter, and said that was linked to; ''a decision to move away from certain high cost mines and areas ... and focus on higher margin thermal coal production.''
Read more: http://www.smh.com.au/business/mining-and-resources/glencore-xstrata-cuts-back-on-coking-20140507-37w40.html#ixzz32lG0h39B
It's not only coking coal on Signet projects...