TORONTO — The federal government threatened legal action after carmaker Stellantis said it will move planned vehicle production from its plant in Brampton, Ont., to Illinois, sparking fears about the future of Canada’s auto industry as U.S. President Donald Trump tries to undo 60 years of integration.

Industry Minister Melanie Joly expressed her “extreme concern” about the move in a letter Wednesday to the company where she threatened legal action.

“The business decision to move the mandate of the Jeep Compass is unacceptable,” she said in the letter, a copy of which was obtained by The Canadian Press.

She said the company had agreed to maintain its full Canadian footprint, including Brampton operations, in exchange for substantial financial support over decades. It refers to the 2009 g

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