The Palaborwa mining company is investigating the deaths of six miners underground.
Was wage negotiations in the gold sector kick off, the Minerals Council of SA has warned that the industry is bleeding jobs.
Shareholders want to sue the gold-mining company for allegedly putting profits over safety.
Unions have called for mine bosses to be held criminally liable for the deaths of mineworkers.
It seems likely that Saftu will continue to gain at the expense of the older federation, especially since Cosatu remains wedded to the ANC-led alliance.
Cyril Ramaphosa told workers on Tuesday that the minimum wage was a starting point, and that the need to save jobs had to be balanced with the need for a living wage.
"We were unpleasantly surprised... that the state president has courted the... EFF to nicodemusly go and apologise to [the widows]," says AMCU's president.
Nearly 1,000 mine workers were trapped underground when a storm cut off power in the Free State.
The union says a "third-force" hit campaign against its members appears to be underway.
The League says reports that Nkosazana Dlamini-Zuma was barred from Marikana are just "media sensation".
She was on the presidential campaign trail.
Union members accused her of trying to use the Marikana massacre for political gain.
President Jacob Zuma was directly involved in setting up a trade union to spy on workers in the aftermath of Marikana, court papers allege.