Johannesburg - Workers at the Samancor Chrome Western Mine near Rustenburg have embarked on a wildcat strike, the company said on Monday.
This followed the end of a sit-in protest by about 400 people at the mine on Friday.
Samancor said its production had been affected by the strike and it was working to resolve this.
"The company is currently engaging with its recognised unions in order to resolve the situation and to get the employees back to work," the company said in a statement.
Workers said they were demanding a monthly pay of R12 500 after deductions, a R1 500 sleep-out allowance and a R1 500 underground allowance.
Samancor said the sit-in had been organised by individuals and not by a union.
The company said current wage negotiations were finalised with unions on Friday, before the sit-in took place.
* Follow Fin24 on Twitter, Facebook, Google+ and Pinterest.