South Africa required another power station the size of the 4,800MW Medupi, said analysts who feared the country would continue to suffer power deficits.
Rockwell Diamonds sold two stones worth more than 120 carats each which helped lift the overall average selling price of goods 24% in the fourth quarter.
Shares in Coal of Africa gained 12.5% in Johannesburg after saying it had raised R250m from the sale of its mothballed Mooiplaats colliery.
Eskom said it hoped for more stable employee relations at its Medupi and Kusile construction sites following signing of a new partnership agreement.
BHP Billiton is to pay $25m after falling foul of a US anti-bribery law related to the attendance of African and Asian government officials at the 2008 Beijing Olympics.
The World Gold Council said redemptions of exchange traded funds would not be repeated on the scale seen in 2013.
UK-listed Amara Mining will spend $400m building its 325,000 ounce per year Yaoure gold project in Ivory Coast.
Survivors of the Marikana shootings wanted to appeal for state legal aid and would march on the Union Buildings in Pretoria in order to make their request.
Mid- to small-sized mining companies were the most vulnerable to cyber-hacking as they increased automation, a report by EY said.
Senegal president Macky Sall said the west African country would chase down mining investmentn so its economy could grow at 7% a year.