Unifor alleges Compass Minerals has been flying in replacement workers from New Brunswick to break the strike.
Agreement covers about 900 shipbuilders at its shipyard facility.
Unifor is confident it will prevail when the new arbitration panel hears the case.
75% of its members voted against the deal offered following eight months of negotiations.
They warn of NAFTA complications, but Japanese OEMs say the trade deal will level the playing field.
Automotive parts company retracts its notice to close the plant.
Main issues around auto, labour standards, dispute-resolution rules under Chapter 11 not resolved yet.
Unifor is now waiting to hear whether the Supreme Court of Canada will weigh in on the case.
Unifor complained the CLC’s process for allowing workers to change unions doesn’t work.
Discontinuing its membership in the national lobby group for Canada’s labour movement – effective immediately.
Union leaders argue higher wages will ultimately help businesses as low income earners increase spending.
They say it’s bad for the small and medium-sized auto parts companies and their employees.
Membership includes metal fabricators to electricians; contract expires at the end of this month.
Energy company and union have been fighting over the issue since 2012 with testing staff in safety-sensitive jobs.
Capital spending for vehicle assembly has averaged just $1.2 billion a year since 2010.