The ratings agency effectively serves notice that the miner's credit rating is at risk of being cut.
It's been a wild ride for investors in this Russian mining giant. It isn't over, yet.
Japan's Fukushima disaster upended the nuclear power market, but now Japan is going nuclear again and that's great news for uranium.
Rio Tinto just sold a coal operation, and it appears more sales might be on the horizon
There's a lot of small fry in uranium, but only one giant.
Cat and Joy Global have been hit hard by the spending slowdown in mining. Is it about to get worse?
The accusations are flying and no one seems to willing to accept the blame. Is this just business as usual or a troubling sign for investors?
Go big or go home really takes center stage when the mining industry is floundering.
After years of weak performance, the uranium producer still hasn't been able to turn things around.
Despite huge share-price gains and signs of life in the aluminum market, Alcoa is still vulnerable.