Australia's Prairie Mining has confirmed its intention to open a coal mine in southeast Poland by 2023, saying it was confident the $632 million (558 million euro) project would be profitable, a report said Monday.

As mining companies in resource-rich Africa bleed jobs due to plunging commodity prices, the ripple effect of redundancies has raised concern about social unrest amid declining economic growth.

President Jacob Zuma received on Tuesday the official report into the police killing of 34 South African miners in 2012, as rights groups demanded that its findings be quickly made public.

Canada's Gabriel Resources said Thursday Romania would get $30 billion in economic benefits if it approves a gold mine project at Rosia Montana that has drawn opposition from environmentalists.

Zimbabwe Finance Minister Tendai Biti on Wednesday warned the government could shut down, as new diamond sales from the controversial Marange fields are falling far short of expectations.

The United States on Monday sanctioned two diamond mines located in Zimbabwe's Marange region, the scene of serious human rights abuses in 2008.