美加贸易谈判破裂 双方陷入关税对抗

美国总统特朗普与加拿大总理卡尼在华盛顿的贸易谈判于周五晚间破裂，双方随即陷入升级的关税对抗。137美国对价值200亿美元的加拿大商品征收50%关税，涉及葡萄酒、乳制品、家具、水泥、服装等产品，该措施已于周六生效。1237加拿大总理卡尼宣布将从9月8日起实施对等报复措施，针对钢铁、乳制品、家电、农业设备、纸浆纸张和电子产品征收关税。1234

谈判破裂的关键分歧在于美方要求的条件。48卡尼表示，美国在谈判最后阶段提出了"不可接受"的条件，包括限制加拿大与其他国家签署贸易协议的能力以及对汽车业的不利条款。348他认为这些要求涉及加拿大主权问题。4相比之下，美国贸易代表詹姆森·格里尔声称美方提出削减钢铁、汽车和木材关税的建议。3卡尼称美国"要求过多，提供过少"。8

特朗普在社交媒体上发表了措辞激烈的评论，指责加拿大"想要作为一个州的好处，但不愿成为一个州"。710卡尼则回应称，美国正在"将经济一体化当作武器"，两国已处于贸易"战争"状态。14他强调，加拿大已认识到"美国已经改变"，两国"不会再回到过去的关系"。89格里尔告诉媒体"目前没有恢复谈判的计划"。7

这场冲突对双边贸易造成重大影响。加拿大约70%至72%的商品出口流向美国。23美加边境每天有近33万人和价值20亿美元的商品通过。3同时，加拿大供应美国99%的天然气进口、85%的电力进口和60%的原油进口。9此外，这场贸易战威胁到管理约1.6万亿美元年度三边贸易的北美贸易协定（USMCA）的前景。17

Trade negotiations between the United States and Canada broke down on Friday evening in Washington, prompting the two countries to escalate into direct economic confrontation.123 The U.S. imposed a 50 percent tariff on approximately $20 billion worth of Canadian goods effective Saturday, affecting items including wine, furniture, dairy products, cement, clothing, fishing rods, and hockey equipment.2710 In response, Canada announced retaliatory tariffs targeting steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics, scheduled to take effect on September 8.12379

Prime Minister Mark Carney rejected what he characterized as unacceptable American demands, stating that the U.S. sought to restrict Canada's ability to negotiate trade agreements with other nations—a condition he described as a sovereignty issue.3478 Carney declared that Canada would match Washington's tariffs "dollar for dollar" to protect Canadian workers, farmers, families, and businesses.27 He characterized the situation as a trade "war," asserting that the United States was attempting to use economic integration as a weapon.19 Trump responded on social media with the statement "No more!!!" and claimed that Canada wanted the benefits of being a U.S. state without actually becoming one.147

U.S. Trade Representative Jamieson Greer stated there were currently no plans to resume negotiations,7 while both sides accused the other of making last-minute changes that caused the talks to fail.78 The rupture threatens the broader North American trade framework, as the USMCA agreement between the U.S., Canada, and Mexico manages approximately $1.6 trillion in annual trilateral trade.17 The United States accounts for roughly 70 percent of Canada's total exports,239 while Canada supplies the U.S. with 99 percent of its natural gas imports, 85 percent of its electricity imports, and 60 percent of its crude oil imports.9