特朗普调整第338条对加拿大产品关税清单：50%附加关税10月30日生效
白宫10月23日发布情况说明：总统特朗普进一步修改依据《1930年关税法》第338条对加拿大产品征收关税的清单，调整第11048号公告所列产品范围，新措施将于10月30日生效。此次调整从清单中移除了胶合板、部分纸制品、某些机械与制冷设备以及部分包装箱盒，同时新增了某些阀门、地毯、废料产品等品类。
据白宫说明，相关加拿大产品将被征收50%的附加关税，且无论是否符合《美墨加协定》（USMCA）原产地规则均适用；该关税与依据第232条征收的关税叠加执行。此次调整是对今年7月20日与9月8日两次关税行动的细化。白宫称，加拿大已对约200亿美元的美国出口产品采取报复措施。
缅因州联邦参议员苏珊·科林斯宣布，她争取到九个对缅因州农业重要的产品类别获得豁免。第338条是美国贸易法中一项较少使用的条款，授权总统对歧视美国商业的国家产品征收最高50%的附加关税。
Trump Further Modifies Section 338 Tariff List for Canadian Products, With 50% Additional Duties Effective Oct. 30
The White House issued a fact sheet on October 23 announcing that President Donald Trump has further modified the list of Canadian products subject to tariffs under Section 338 of the Tariff Act of 1930, revising Proclamation 11048, with the changes taking effect October 30. The modification removes plywood sheets, some paper products, certain machinery and refrigeration equipment, and certain packing crates and boxes from the list, while adding certain valves, carpets, waste products and other items.
According to the White House, the covered Canadian products face 50% additional duties, applied regardless of whether the goods qualify as originating under the USMCA, and the duties stack on top of tariffs imposed under Section 232. The move refines two earlier rounds of action taken on July 20 and September 8, 2026. The White House said Canada has retaliated against roughly $20 billion of U.S. exports.
Sen. Susan Collins of Maine announced that she had secured exemptions for nine product categories important to Maine agriculture. Section 338 is a rarely used trade provision authorizing the president to impose additional duties of up to 50% on products of countries that discriminate against U.S. commerce.
来源：GSM·美国（原文链接）
图片来源：特朗普在白宫玫瑰园展示对等关税清单（白宫官方照片）。President Donald Trump displays the reciprocal tariff chart in the White House Rose Garden (official White House photo).
