Hancock Prospecting reported a A$4 billion ($2.9bn) net profit after tax for financial 2020, a 56% improvement from the A$2.6 billion logged last year.
Copper volumes on world exchanges are climbing again as a buoyant economic recovery from covid-19 in top metals consumer China spurred speculators to pile back into the market.
In April, the company released a prefeasibility study for Valentine, which outlined a 12-year open pit and conventional milling operation producing an average of 175,000 oz. of gold annually in the first nine years of operation.