BHP Billiton will start searching for copper, gold and silver in Zambia from next month.
First Quantum Minerals has been forced to stop work on the Kolwezi project in the Democratic Republic of Congo and it seems a legal battle is looming.
Glencore International and Credit Suisse are said to be in advanced discussions about creating the world's first physically backed aluminium exchange traded fund.
Glencore's Mopani Copper Mines has reversed a plan to suspend output at its copper mines because of a pick up in prices.
Zincor plans to meet customers' short-term requirements and it will decide early next week when to restart halted operations.
AngloGold Ashanti and RUSAL are among three firms into which the Guinea government will conduct an audit investigation.
Zambia has projected a slight rise in 2009 copper output to 664,000 tonnes, compared with previous estimates of 600,000 tonnes due to rising production at the mines.
South Africa's only zinc refinery, Zincor owned by Exxaro, temporarily stopped operations after three people were killed and a dozen more hurt in an explosion.
Metorex, which has sold off a number of assets, is continuing to look for ways to cut debt sharply by December. It posted disappointing full-year results.
A unit of Swiss company Glencore International will develop an open pit copper mine in Zambia after authorities approved its proposal for the project.