MONTREAL — When the United States’ own federal trade agency on Friday quashed the Trump administration’s attempt to impose duties of nearly 300 percent on imported jets made by the storied Quebecois aerospace company Bombardier, Canadians could have been forgiven for reacting with a decidedly un-Canadian dose of triumphalism.

This being Canada, a country of chronic apologies that sometimes suffers an inferiority complex when confronted by its swaggering neighbor to the south, the chest-thumping wasn’t exactly loud. But in a province where Bombardier is an inextricable part of the economic and cultural fabric, the surprising decision generated no small amount of satisfaction — and, in some cases, a little snark worthy of President Trump.

“Dear Boeing and Trump Protectionists hurting Canadian and American jobs — take that!!” Marion Bialek, a Montrealer, wrote on Twitter.

Others were more diplomatic.

Bombardier — which can trace its roots to the 1920s when its founder, Joseph-Armand Bombardier, built his first “snow vehicle” to help people travel across rural Quebec — described the decision as “a victory for innovation, competition, and the rule of law.”