Both provinces displaced Western Australia from the first to the third place thanks partly to their rich mineral reserves, competitive tax regimes, efficient permitting procedures, and certainty surrounding environmental regulations.
Khoemacau mine will initially produce 50,000 tonnes of copper and 1.4 million ounces of silver a year, but future expansions could increase output to at least 120,000 tonnes of copper annually.
With six drill rigs currently active on site, and two more to follow soon, Acacia expects to increase the resource to 2 million ounces by the end of the year.
A practical method for extracting the uranium present in the oceans could help make nuclear power a viable part of the quest for a carbon-free energy future, researchers say.