2003 abc article, page-8

from the link

"Another unforgettable experience is a tour of the Leigh Creek Coalfield. You can see some of the biggest mining equipment in the world, working 24 hours a day to uncover coal for the Port Augusta Power Stations. The Leigh Creek coalfields are now owned and operated by NRG Energy from Minneapolis, USA."
JT,
Prudent maybe to concentrate on the iron-ore, yes?, but strategic resource exploration for coal and diamonds and a discovery has considerable capacity to increase share price and market cap so that when the funds are needed to commence mining and raise funds for the capex at solomon, the dilution factor is decreased with a higher share price requiring less shares to be issued which retains shareholder value.