OZ Considering High-grade Start for Carrapateena Mining
The proposed high-grade project would mine up to 3 million mt/y using selective underground mining methods, most probably sublevel open stoping, at a development cost estimated at less than A$1 billion. The 2014 prefeasibility study had considered a mining rate of 12.4 million mt/y, with project capital costs estimated at A$2.985 billion.
The Carrapateena copper-gold deposit is located in central South Australia, about 425 km north of Adelaide and 250 km southeast of OZ Mineralsí Prominent Hill mine. Since purchasing the deposit in 2011, the company has undertaken a significant amount of work on how to best develop it. In April, the company committed to evaluating three development options: a value-optimized, stand-alone block cave project, a Gawler Craton strategy linking Carrapateena to the Prominent Hill mine via a 250-km rail line, and a high-grade option. The high-grade option is the object of the current scoping study.