what happens if it's nothing?, page-12

re: 17 holes sparrot?/corrected It's also worth noting that the same mentioned:

"Finally on 11 June 1985 it was announced that the project was considered economically viable and six months later on 8 December the joint venturers, Western Mining Corporation (51%), and the BP Group (49%), committed themselves to the mining of the ore deposit of the Olympic Dam Project.

Ten years had passed since the discovery. Ten years of investing millions of dollars without a guarantee of a profit or even recouping the money. Ten years of public debate, political manoeuvring, uncertainties and protests. Ten years of drilling, testing, exploring, evaluation, feasibility and environmental impact studies. Never had any mining company invested so much time and money in proving a deposit before it started mining it."

http://www.southaustralianhistory.com.au/olympic.htm