Twenty-eight female guards were unfairly dismissed by a security company because the client‚ Metrora.
The National Union of Mineworkers is at loggerheads with Anglo- Gold Ashanti after the mining group passed a "no work, no pay" ruling on their day of mourning allowance.
Frans Baleni, general secretary of NUM said: "AngloGold management is creating unnecessary tensions because this issue was agreed on earlier.
"The new management seems to be having a negative attitude and this will result in the union not giving them any support in future, especially on legislature- related issues," he said.
Asked about the unions' way forward, Baleni said: "We will continue to organise these 'mourning days' because we believe that management also does not give any prior notices before killing our members."
He said that the union would ensure the workers could mourn and still be paid.
Reint Dykema, Solidarity Mining spokesperson said: "Solidarity respects NUM's view on the 'day of mourning' because we are equally affected when workers are killed but we believe that it should be well communicated."
Most mining companies are waiting for the Chamber of Mines' view on the matter.
Daniel Thole, Goldfields spokesperson, said: "It is difficult to comment at this stage except to say that the industry will be considering its position on this matter in September through the Chamber of Mines."
Joanne Jones, spokesperson for AngloGold Ashanti, said: "The important thing to note is that we respect the mourning day.
"It is just a pity in this instance that we couldn't reach an agreement with the union on how it should be done.
"Our general senior management participated in the morning ceremony and also helped with logistics," she said.
"The company is using this 'no work, no pay approach' because of the fact that the union took a unilateral withholding of labour," said Jones.
The union will engage in talks with the company to review their decision later this week.