Johannesburg - Strikes cost South Africa R6bn in wages in 2014, lower than the previous year despite a record five-month strike in the mining sector, a report published by the Department of Labour showed on Monday.
In its annual report on strikes, the department found they cost the country last year 9% less than the R6.7bn recorded in 2013.
The manufacturing and mining sectors were hit hardest by lengthy strikes. Mining accounts for 7% of GDP, while manufacturing represents 14%.
Last year South Africa's economy was sapped by the record five-month platinum mining strike, pushing it into a quarterly contraction while a four-week manufacturing strike further hobbled economic activity.
The Association of Mineworkers and Construction Union led the wage strike at operations of the world's top producers, cutting output by 44% and was responsible for 92% of the lost working days in strikes across the country.
The National Union of Metalworkers of South Africa, the biggest by membership, downed tools for four weeks over pay in the sector accounting for 2.59% of the lost working days in 2014.
Measures by companies to cut labour costs and reduce salaries while reporting an increase in earnings, executive pay and exporting profit was seen as increasing the wealth and income inequality in society, the report said.
"The industrial action, in particular their length of period by workers, was the reflection of the desperate situation, method of resistance and struggle for increased income to maintain and improve the living conditions of their families."
To limit the impact of strikes, new laws effective from April allow the government to intervene in labour disputes by limiting prolonged strikes while the labour department has suggested implementing a national minimum wage.