JSE– and LSE-listed Anglo American has increased its mineral resources and ore reserves at its Compañía Minera Doña Inés de CollahuasiSCM (Collahuasi) copper mine, which is located in the I Tarapacá Regions, 185 km from Iquique the, Chile.The company says its 44%-owned Collahuasi mine has increased its resource from its estimated 2012 resources estimation process. The new measured, indicated and inferred resource has increased by 1.4 billion tonnes to over 9 billion tonnes at an average grade of 0.81% copper and 0.02% of molybdenum. This represents a 19% increase on the previous estimate published in December 2011. Total contained copper metal has increased by 23% to around 73 Mt.
Ore reserves have increased by 10% compared to the previous year, up 292 Mt to a total of 3.2 billion tonnes at an average grade of 0.81% copper. This new estimate is the result of new drill results, geological modelling updates, mining design optimisation and adjustments to metal price assumptions.Collahuasi’s CEO, Jorge Gomez, says: “This impressive uplift in our mineral resource base at Collahuasi clearly indicates the significant potential for further expansion at Collahuasi. We continue to work on bringing increased stability to our processes through operational improvements to ensure we can capitalise on this world-class resource.”