President Donald Trump on Monday said Bombardier, a Canadian airplane manufacturer, must build its products in the U.S. in order to keep selling in the American market.

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The move comes amid a bitter trade war between the U.S. and Canada, and on the eve of retaliatory tariffs set to take effect Tuesday on a range of U.S. goods.

“NO MORE SELLING BOMBARDIER IN THE UNITED STATES!” Trump wrote on Truth Social.

“If they want our Market, they must build here, and stop treating America like a ‘piggybank,'” he wrote.

Bombardier didn’t immediately respond to a request for comment.

Ottawa announced about $20 billion of retaliatory tariffs on more than 700 U.S. goods on Aug. 25.

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They’re meant to mirror the size of Trump’s latest import taxes on Canadian wine, cement, hockey sticks and other products. Trump had recently announced those 50% tariffs after a breakdown in trade talks.

U.S. Commerce Secretary Howard Lutnick told CNBC’s “Squawk Box” that the Canadians “blew up” a nearly complete trade deal with the U.S. “for political reasons only.” In return, Canadian Prime Minister Mark Carney said his nation would resume trade talks “when the Americans are ready.”

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