If the miner buys any assets this year, it would be Rio's first acquisition in about three years.
The global miner trimmed its forecast from 32m-34m carats to 30m-32m because of “current trading conditions”.
But China’s slowdown, rising costs and falling prices may get in the way.
Mostly due to a lower estimate from Anglo American's projects and the Zaldivar mine, which is operated by Barrick.
The news comes on the heels of a report showing that less than half of existing copper projects are really needed to meet current demand.
The move seeks to direct gems to the most financially sound purchasers and make the business more transparent.
A chart by the Wall Street Journal shows that capital expenditures by the big oil companies are exceeding cash flow at a higher rate than the major miners.
A raging seven-year drought affecting copper-rich Chile is making miners grow anxious, with BHP and Anglo American already reporting an impact in their operations.
Anglo’s assets up for grabs include three mines and a smelter valued at $1 billion.
Anglo American Platinum's production fell by 17% in the fourth quarter compared with a year ago due to a strike at its South African operation.
The firm became the first major mining company to openly accept the toll that slumping commodity prices are taking on the global industry.
The operations that may be added to the list of assets for sale are Dawson and Foxleigh, in Queensland.
The miner shed over 3.7% after two of its business divisions — Amplats and Kumba — warned they expected full-year earnings to shrink more than previously flagged.
The miner is now accusing him of 'misappropriating' $9.8 million, more than twice as much as previously thought.
South African commodity stocks fell the most in more than six years, with Anglo American (AGL) Plc leading declines, as global metal prices slumped.
Revised plan plan will see the company mine 75 million tonnes over 17 years instead of 97 million tonnes over 20 years.
The new law could seek to limit mining companies' ability to replace workers during strikes.
Anglo’s boss Mark Cutifani says company needs to find an extra $2 billion of earnings before interest and tax to meet the return on capital target set for 2015.
Miner's belt tightening continues.
This is the first time mining engineers, geologists and other highly educated employees go on a strike at a privately owned mine in Chile.
The mining giant said it was committed to giving significantly more money back to shareholders in 2015 despite a severe drop in iron ore prices.
A federal judge has ruled in favour of the Pebble mine project, putting a temporary halt on the U.S. Environmental Protection Agency’s efforts to protect Bristol Bay.
Glencore and X2, a company set up by former Xstrata boss Mick Davis, are among the suitors of the Chilean copper assets put up for sale by global miner Anglo American.
The company's market share has dropped from about 80% in the late ‘80s to roughly 35% today.
Sources close to X2 Resources, Davis' new company, have cast doubts on reports that the firm had made an offer.
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