The Gold One International mine was bought two years ago by a group including Zuma's nephew and a grandson of anti-apartheid icon Mandela. The two allegedly never paid for the mine but stripped it of most assets and now are being sued by liquidators. They have also failed to honor court orders to pay tens of thousands of dollars to the miners who were thrown out of work.
Cabinet ministers, meanwhile, sought to reassure investors Monday even as news of the latest clash emerged.
"The tragic incident at Marikana is not a reflection of the business environment in South Africa," Collins Chabane, the minister of state in the presidency, told foreign reporters. "The government remains in control of the situation and law and order continues to prevail. The country continues to fully support direct investment and appropriate incentives and the legislative framework is in place to give confidence and predictability to investment decisions."
Legislator James Lorimer of the opposition Democratic Alliance blamed the latest violence on Malema, an expelled youth leader of the ruling African National Congress who has been using the unrest to try to oust Zuma from power.
Malema, who has called for the nationalization of South Africa's mines and for Zuma to resign over the police killings, went to the gold mine last week and told miners they must fight for their economic freedom.
He sent a message on Twitter on Monday saying he was addressing striker at the Gold Fields mine. "(The) Mining Revolution goes on and on and on," he wrote.
The violence that led to the police shootings at London-registered Lonmin PLC mine at Marikana and the Gold One International gold mine was at least partially rooted in union rivalry. Upstart unions have stolen thousands of members away from the dominant National Union of Mineworkers.
Negotiations continued Monday between Lonmin managers, unions and the Department of Labor to resolve workers' demands for a minimum monthly wage of R12,500 ($1,560).
Lonmin said only 4.5 percent of workers reported for work Monday. The strike that began Aug. 10 is crippling the company, which has said it probably cannot meet debt obligations due at the end of September.
Like the ANC, the politically connected National Union of Mineworkers is accused by rank-and-file workers of cozying up to management, of being more concerned with business than with workers' needs and with losing focus by spearheading Zuma's bid for re-election as ANC president next December.
The general secretary of the powerful Congress of South African Trade Unions vowed Monday to speak out.
"What I will not do is agree to be blackmailed and to keep quiet when things are going so wrong in society," Zwelinzima Vavi, who heads a faction that wants Zuma out, told shop stewards in Johannesburg.
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