Some of South Africa’s bosses are already trying to renege on an agreement made with metal workers’ union Numsa last week.
The National Employers Association of South Africa (Neasa) has refused to sign the deal agreed to end the month long strike by 200,000 workers.
When the strike ended workers at Neasa companies returned to work to discover they were locked out.
Neasa, represents 22 smaller companies which employ about 70,000 Numsa members.
Numsa general secretary Irvin Jim says that Neasa has effectively started a new dispute.
Zwelinzima Vavi, general secretary of the Cosatu union federation, said Neasa was declaring war instead of seeking peace.
The strike won a pay rise considerably above what the government was offering and Neasa claims its members cannot afford to pay.