Veteran unionist Senzeni Zokwana has joined Gwede Mantashe's call for leaders in Cosatu's two main factions to solve their differences.
Murders at Marikana resulting from union rivalry between the NUM and Amcu has violated the peace accord signed in February, says Thandi Modise.
The rand dropped 1.4% in the past few days as strikes at platinum mines continue.
Over 7 000 NUM members representing approximately 80% of the workers at the Northam platinum mine have gone on strike, says the union.
Workers affiliated to the National Union of Mineworkers are demanding salary increases of up to R2100.
Parliament has adopted the Employment Tax Incentive, or youth wage Subsidy, Bill.
The mining union's change of tactics governing wage talks has suggested that last year's bloody mine violence at Marikana may be avoided this year.
Join Kwanele Sosibo and Deshnee Subramany between 1pm and 2pm as they talk you through the latest scandals and brouhahas unfolding in South Africa.
The National Union of Mineworkers' (NUM) still represents workers at Lonmin, workers were told at a rally in Marikana on Sunday.
As the former majority union, the NUM now falls very short of representing enough works to allow it organisational rights at the platinum mine.
Mining company Lonmin has filed court papers proposing that a secret ballot be held to establish the union membership of its workers.
Even if Amcu signs, it will not resolve turf wars or satisfy wage demands.
Platinum producer Lonmin and Association of Mineworkers and Construction Union are in talks to avert a strike, says a union official.
The NUM winning membership at the expense of the government-aligned labour group Amcu will slow economic growth and lead to job losses, says the ANC.
The National Union of Mineworkers said on Sunday it would seek pay hikes of up to 60% from the country's gold and coal producers in wage talks.
The National Union of Mineworkers will oppose the retrenchment of 6 000 workers at Anglo American Platinum, the union has said.
The ANC's secretary general says mines don't want the NUM around because it is fighting exploitation, adding new unions have nothing to offer members.
President Jacob Zuma has launched a veiled attack on some Cosatu leaders, who continued to publicly criticise the National Development Plan.
Events at Marikana and the rise of Amcu have upset the cosy relationship enjoyed by the National Union of Mineworkers.
The National Union of Mineworkers' president Senzeni Zokwana says he did not think the people gathering at the koppie in Marikana were criminals.