The Carter Center Friday called on the government of the Democratic Republic of Congo (DRC) to reveal the terms under which a state firm sold a mining concession to a subsidiary of Swiss group Glencore.
The minerals in the south-eastern Katanga region represent potential riches for the Democratic Republic of the Congo, but a lack of electricity is preventing the country from fully exploiting them.
The launch of a free trade agreement by three African economic blocs in Egypt this week will be an important step towards a potentially game-changing common market spanning the continent, supporters say.
A Chinese company that develops online games bid more than US$2.3 million Friday to win a private lunch with Warren Buffett.
Growing optimism over Africa's economic future is set to draw more than 1,250 delegates from governments and international corporations Wednesday to the three-day "African Davos" in Cape Town, the World Economic Forum said.