President and chief operating officer Mike Frasersaid company has received a number of offers for the assets, which it up for sale in November last year as part of a shift away from coal.
A late rally in physical gold buying failed to prevent a drop in full-year demand last year to its lowest since 2009, the World Gold Council said, as weaker fund investment outstripped a bump in jewellery consumption.
Chile's economy is poised to improve by mid-year as rebounding copper prices and President-elect Sebastian Pinera's promise of business-friendly policies increase optimism among investors.