加拿大背弃美国？对华降税求合作，特朗普借题发挥，终止和加谈判

Core Viewpoint - Canada has recently adjusted its tariffs on certain steel and aluminum products from China, indicating a shift in its trade policy amid economic pressures, which has led to tensions with the United States [1][8]. Group 1: Tariff Adjustments - On October 17, Canada announced a tariff revision document that reduces tariffs on certain steel and aluminum products from China, effective from October 15, with specific details to be released on November 5 [3]. - Canada previously imposed high tariffs on Chinese products, including a 100% tariff on electric vehicles and a 25% tariff on some steel and aluminum products, but has now softened its stance due to economic pressures [5][6]. Group 2: Economic Pressures - Canada's agricultural sector has been severely impacted by retaliatory tariffs from China, with canola oil exports from Saskatchewan dropping by 76% year-on-year in August [6]. - The manufacturing sector is also struggling, with companies facing over 30% higher costs for raw materials due to tariffs, leading to survival crises for many downstream industries [6][12]. Group 3: Political Dynamics - Canadian Prime Minister Carney has indicated a significant shift in Canada-U.S. economic relations, stating that they can no longer return to previous levels of closeness [8][10]. - The Canadian government is under pressure from local leaders to adjust tariffs, as provinces like Manitoba and Saskatchewan are experiencing severe economic impacts from the trade war [12]. Group 4: U.S. Response - President Trump reacted strongly to Canada's tariff adjustments by terminating all trade negotiations with Canada, citing a "fraudulent advertisement" as a pretext, but the underlying issue is Canada's warming relations with China [14][16]. - Trump emphasized the importance of tariffs for U.S. national security and economic interests, suggesting that Canada's tariff reductions could undermine U.S. policies [16][18]. Group 5: Future Considerations - The effectiveness of Canada's tariff adjustments will depend on the details released on November 5, China's response to Canada's requests, and the U.S. stance following the termination of trade talks [20]. - Canada is taking steps to reduce its dependency on the U.S. market, aiming to double exports to markets outside the U.S. over the next decade [10][22].