Negotiations at the construction site of Eskom's Kusile power plant in Mpumalanga could pave the way for across-the-board collective bargaining.
Ordinary workers at the National Union of Metalworkers of South Africa (Numsa) bargaining council spoke up for Cosatu's embattled general secretary.
Cosatu general secretary Zwelinzima Vavi's supporters in Cosatu, including Numsa, believe he is being targeted for political reasons.
A Swedish programme has aired allegations of a payment ostensibly intended for a union school. Drew Forrest and Tabelo Timse report.
All key economic sectors in South Africa, including mining and banking, should be nationalised, Numsa has proposed in a policy discussion document.
The ANC has been keeping a close eye on two union leadership contests, namely the National Union of Mineworkers and National Union of Metalworkers.
President Jacob Zuma has condemned the media for sensationally reporting on political matters in South African society.
Cosatu secretary general Zwelinzima Vavi questioned his own lifestyle at the Numsa commission, saying the working class had it very tough.
The NUM has blamed a lack of leadership by Cosatu General Secretary Zwelinzima Vavi for its row with Numsa.
Police Minister Nathi Mthethwa on Saturday denied reports that he was asked to provide security for Numsa secretary general Irvin Jim.
Cosatu has said it is not in disarray after an advert in the Sowetan by Numsa dealt with federation leader Zwelinzima Vavi's succession.
Labour Minister Mildred Oliphant has called on unions to focus on the issues and not use strikes to further the call for a ban on labour brokers.
Six trade unions signed a three-year wage agreement on Monday, ending a nationwide engineering sector strike.
The Steel and Engineering Industries' Federation of South Africa says acts of violence and intimidation were allegedly committed by striking workers.
The National Union of Mineworkers hopes to secure a 14% pay hike this week at its wage discussions with the Chamber of Mines, which has offered 4%.
Workers continue to believe in the ANC government despite it being slow in addressing inequality and injustice, the Numsa president said on Saturday.
The National Union of Metalworkers of South Africa (Numsa) on Thursday rejected Eskom's wage increase offer.
A potential strike at Eskom widened after a second union said on Wednesday its members rejected a new pay offer.
The National Union of Mineworkers' (NUM) leaders have voted to go on strike at Eskom from next week.
Unions representing thousands of workers at power utility Eskom said on Friday they were not planning an imminent strike over wages.