Four hundred workers at Lear Whitby have gone on strike after negotiations broke down late Saturday night.
Canadian Auto Workers (CAW) Local 222 says the workers voted 97% per cent in favour of a strike last week.
"During the previous sets of negotiations, our members accepted a number of sacrifices with the goal of keeping the facility open, and the view towards long-term prosperity and employment," CAW spokesman Jerry Dias said in a press statement.
"Now that Lear has made an excellent recovery, this corporation continues to demand that our members accept less and work harder. We have to draw the line."
Dias said that in the last quarter alone, company earnings and share prices were up to the point that Lear was able to return $63 million to shareholders.
The wrok stoppage comes on the heels of another strike at auto parts company Wescast, in Strathroy, Ont., which began Saturday morning.
The CAW says the strike at Wescast "is the result of a sourcing decision by General Motors which would see the current work performed at the facility go to China, as opposed to staying in Canada."