Mbada Diamonds, which is in joint venture with the state-owned Zimbabwe Mining Development corporation, is to expand into underground production.
AngloGold Ashanti is to cancel the listing of its ordinary shares in London owing to low liquidity.
Ghana may breathe fresh life into a windfall tax proposal that had been written into a bill but was not considered by the country's parliament in 2012.
Merafe Resources said the weakness of the rand against the dollar and higher ferrochrome production would help interim headline share earnings 142% higher.
Impala Platinum said it may buy platinum in order to continue supplying customers as its own inventories run dry.
A lack of quality debt finance to all but the largest mining companies would see the private sector helping to drive more merger and acquisition activity in 2015.
Standard & Poor's downgraded Eskom's credit rating following a similar downgrade to South Africa.
Keaton Energy said it had ended a dispute with DRA, an engineering firm, regarding work completed on the coal plant at the Vanggatfontein colliery.
New discoveries of diamonds were crucial or the industry would see increased fabrication of synthetic diamonds to plug the supply deficit.
The Zambian authorities has withheld up to $500m in value added tax repayments because miners have failed to comply with new import rules.