GERMAN shipping giant Hapag-Lloyd has warned customers that all Spanish ports will be affected by strikes this month to protest the government's plan allow employers to hire non-union labour.
In Week 10, there will be a strike on March 6, 8 and 10 every other hour, starting 8am, reports the American Journal of Transportation.
In Week 11, there will be a strike on March 13, 15 and 17 every other hour, starting 8am.
In Week 12, there will be a strike on March 20, 22 and 24 every other hour, starting 8am.
The Port of Bilbao announced a strike for the same dates but for complete 24 hour periods commencing each day at 8am.
Dockers have called the strikes to protest the conservative Popular Party (PP) government's port liberalisation bill.
The bill, which still requires parliamentary ratification, will likely result in layoffs and wage cuts of up to 60 per cent.