The National Union of Mineworkers NUM, National Union of Metalworkers of South Africa NUMSA and Solidarity have so far rejected power utility Eskoms offer of a 3.5 multi-year wage increase.
This, after a three-day marathon meeting between Eskom and unions at the National Bargaining Forum.
Labour unions representing a large share of Eskoms 42 000 workforce are demanding a 15 wage increase.