The workers are expected to march in Johannesburg, Durban, Port Elizabeth, George, Cape Town, and East London, according to Numsa.
The employers have tabled a three-year wage settlement offer of between 7% and 8% for different levels of workers in the first year and CPI-linked increases for 2015 and 2016.
However, the union has rejected the offer, as they are demanding 12%.
According to economists, the strike is a major setback for the economy as it recovers from a five-month long strike in the platinum mining sector.
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