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 says it might bring a strategic investor into the holding company or into its assets as part of a plan to address more than R2bn of debt in the group by December 2009.
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.
Global miner Rio Tinto has ceased iron ore price talks with Chinese customers, but it denied a media report the talks had ended because of the detention of its negotiators.
Anglo American says it has found a new zinc deposits near its Skorpion mine in Namibia and the Gambsberg deposit in South Africa.
Copper futures rose 1% on Wednesday, reversing early losses in a choppy trading pattern that is set to continue as investors weigh increasingly positive data against fears the rally is overdone.
UPDATED - Exxaro urgently needs to find extra feedstock for its KZN titanium smelters but the Corridor Sands heavy sands deposit in Mocambique does not fit the bill.
Copper prices will top $6,500/tonne in the fourth quarter of 2009 on the back of increased demand. The outlook for copper is bullish over the next three years.