Ballooning government wages are helping to close the income inequality gap between white and black South Africans.
After a week that saw mounting arrests to counter the spreading strikes, the Trotskyite Democratic Socialist Movement paused to plot a way forward.
Solidarity said on Friday it had rejected a 7,5% pay rise offer by Lonmin and stuck to its demand for a 10% rise.
Wage-related strike action by DRDGold's employees has entered its third week, the gold miner said on Wednesday.
Both unions embroiled in a wage dispute with Sars have rejected the tax collector's latest wage offer, they said on Tuesday.
The South African Revenue Service and two public sector unions reached an interim agreement to suspend strike action on Friday.
Workers at Impala Platinum attacked union leaders who tried to persuade them to return to work, the company and union said on Friday.
Some branches of the National Union of Mineworkers have accepted a wage offer by Impala Platinum, the company said on Wednesday.
A strike at Impala Platinum has spread to another mine and hit output, the company said on Friday.
Impala Platinum said on Thursday it could sack thousands of striking workers, escalating a wage dispute.
The National Union of Mineworkers said on Wednesday its members had rejected the latest wage offer from Impala Platinum.