RE: Summary of Colin Bird and XTR since 202523 Oct 2025 09:09
Since we’re discussing Bushranger I thought I’d offer up a couple of excerpts from the Pit Optimisation & Financial Modelling Study delivered by optimal mining in November ‘23
“The pit optimisation assessment was undertaken utilising the following assumptions:
· Capital Cost Estimate - AU$713M (10Mtpa), AU$1,159M (20Mtpa)
· Copper Sales Price - US$8,000/t, $9,000/t, $10,000/t, $11,000/t
· Gold Sales Price - US$1,900/oz
· Silver Sales Price - US$22/oz
Conclusions of Bushranger Study
1. The Racecourse deposit contains significant low-grade tonnes of copper, gold and silver which may be economically recoverable at copper sale prices above US$10,000/t.
…
5. Due to its large size and grade, conditions are expected to be excellent for the efficient and productive mining of the deposit.
6. The economic recovery of all metals (copper, gold, silver) from low grade ores (
7. Optimisation of the processing plant capacity, capital cost, metallurgical recoveries and operating cost has the potential to greatly improve the economic viability of the project and further work is warranted in all of these areas.”
Ref: https://www.lse.co.uk/rns/XTR/bushranger-pit-optimisation-financial-study-jxp0lzmb606mvwu.html