1、 https:/crsreports.congress.gov Updated October 9, 2018Effects of U.S. Tariff Action on U.S. Aluminum ManufacturingSince March 2018, the United States has assessed duties of 10% or more on certain imports of aluminum on national security grounds. The duties are controversial, with some Members of Co
2、ngress questioning whether the duties will encourage domestic aluminum production and whether they could adversely affect U.S. industries that use aluminum. Aluminum Tariff and Other Restrictions Acting under Section 232 of the Trade Expansion Act (19 U.S.C. 1862, as amended), which allows the Presi
3、dent to levy tariffs and quotas on imports found to threaten or impair U.S. national security, President Trump signed a proclamation that imposed a 10% tariff on foreign-made primary unwrought aluminum and certain semifinished aluminum products effective March 23, 2018. Although aluminum manufacture
4、d in certain countries was initially exempted, most exemptions expired on June 1, 2018, thereby extending the tariff to key sources of aluminum imports, including Canada, the leading import source of primary unwrought aluminum into the United States. Argentina, which agreed to a quota, and Australia
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