Emerging diamond producer DiamondCorp has reported a 47% drop in headline earnings per share to 6.15 pence for the year to end December 2009 from 11.55 pence a share previously.
Thabex, the junior mining and exploration company, has made an application for the voluntary suspension of its listing on the JSE with immediate effect.
Investment group Remgro has approved the unbundling of its investment in diamond miner Trans Hex.
The National Union of Mineworkers has secured wage increases of between 9% and 10% for its members at diamond company Trans Hex.
Diamond exploration company African Diamonds expects the AK6 diamond mine in Botswana to come on stream in the third quarter of 2011.
The National Union of Mineworkers has warned De Beers that it will fight plans to retrench more than 350 workers at its Finsch mine in the Northern Cape.
Members of the National Union of Mineworkers (NUM) and the world's largest diamond miner De Beers Consolidated Mines have agreed to sign a wage deal, the union says.
Rockwell Diamonds is still battling the after-effects of the collapse in the diamond market but is looking to expand cautiously after refinancing its balance sheet.
South Africa's NUM and the world's biggest diamond producer De Beers are likely to sign a wage deal that could prevent a strike at the company's operations.
Rio Tinto is to press ahead with the $300m expansion of the Murowa diamond mine in Zimbabwe amid signs the investment climate had radically improved in that country.