Port of Montreal longshoremen began the first in a series of weekend strikes on Saturday.
This new leverage comes on top of the overtime strike launched this week.
They will cease work on Saturdays and Sundays for an unlimited period, but will not set up pickets.
Representatives of the two parties met on Thursday in the presence of the three mediators already assigned to the file by the Federal Ministry of Labor.
Earlier this week, six employers’ associations made a joint public outing to increase the pressure, demanding the personal intervention of the Prime Minister Justin trudeau, even if it means adopting a special law to put an end to the conflict.
The 1,150 longshoremen at the Port of Montreal have been without a collective agreement since September 2018.
The first strike vote dates back to December 2018. It has been repeated regularly since.
The partial strike was announced by the union last Sunday after the Maritime Employers Association announced it would cut pay conditions for longshoremen.