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More than 220 000 Numsa members in the steel and metal workers sector will embark on a strike across the country this week.
Numsa general secretary, Irvin Jim, said on Sunday that members are demanding a 12% salary increase, the scrapping of labour brokers and a one-year bargaining agreement.
Jim said the planned strike followed a series of failed negotiations.
He said Numsa members at Eskom would also picket on July 2 at the Eskom head office demanding an increase of 12% across the board.
