Canada’s manufacturing sector expanded for a fifth consecutive month in August, but the outlook weakened after the United States imposed 50% tariffs on nearly $20 billion of Canadian imports on Aug. 22 following the collapse of trade talks. The S&P Global Canada Manufacturing Purchasing Managers’ Index (PMI), a survey-based measure of factory activity, eased to 53.0 from 53.5 in July but remained above the 50 threshold separating expansion from contraction. Output rose to 52.8 from 52.6, employment reached 52.0, its highest level since October 2024, and the future output index climbed to 58.7, its highest since December 2024. However, new export orders rose only to 48.2 from 48.0 and remained in contraction for a third month. S&P Global economics director Paul Smith said solid output and new sales supported hiring and optimism, but cautioned that most survey responses were collected before negotiations collapsed, potentially making August a high point for growth. The wider tariff dispute is concentrated in autos, trucks and parts, where components cross the border multiple times, and could discourage investment, raise Canadian inflation more than U.S. inflation and test North American economic integration. Canada announced counter-tariffs of 15%, 25% and 50% on C$27.6 billion ($20 billion) of U.S. goods effective Sept. 8, later removing fish and seafood after industry feedback. Investor Kevin O’Leary said disruption could last 60 or 90 days and create an investment opportunity in Canada, while Peterson Institute fellow Gary Clyde Hufbauer forecast a negotiated adjustment around January 2027; both views remain forward-looking and uncertain.