Guinea transfers oversight of state mining company to Presidency

Weak gold prices to blame.

The world’s No. 3 gold producer, will cut about 40% of its management positions and it is cutting capital expenditure in 10 countries.

Companies caught by surprise.

Biggest impairments all gold miners.

The Australian uranium miner must now tap the markets for $75 million.

Largest investor has backed ENRC founders' $4.5 billion takeover.

Miner believes it can weather the storm by maintaining its positive position in Mali.

$2.29 billion non-cash write-down and Tasiast mine expansion on hold.

Morgan Stanley and Goldman Sachs likely to be the next ones.