[U.S. Department of Justice Suspends Antitrust Cooperation with Canadian Government Amid Escalating Trade Dispute] Jin10 Data, September 5 — According to The Wall Street Journal, the U.S. Department of Justice's antitrust division has been instructed this week to suspend all cooperation with the Canadian government, marking the latest development in the escalating trade dispute between the two countries. Linda Marshall, head of the DOJ's antitrust division's international affairs department, sent an email requesting officials to cease collaboration with Canada on cases and policy matters, without providing specific reasons. The report noted that DOJ officials stated such directives are rare, as the U.S. typically maintains cooperation with competition regulators in other countries, even when government relations are not close. The antitrust agencies of the U.S. and Canada have previously worked closely on issues such as price-fixing in auto parts, air cargo investigations, and merger reviews in the technology and aerospace industries. This suspension of cooperation comes amid rising tensions in U.S.-Canada trade relations. Last month, trade negotiations broke down, leading the Trump administration to impose a 50% tariff on $20 billion worth of Canadian goods. In response, Canadian Prime Minister Mark Carney implemented similar tariffs on certain U.S. goods. The U.S. Department of Justice and the White House have yet to comment on the matter.