On January 25, 2021, the Federal Register published Proclamation 10139 of January 19 – Adjusting Imports of Aluminum Into the United States, which modified the terms of Proc. 9704 of March 8, 2018, imposing a 10% additional ad valorem duty on aluminum imports from most countries under section 232 of the Trade Expansion Act of 1962, as amended (19 U.S.C. 1862). Proclamation 10139 added the United Arab Emirates (UAE) to the list of countries exempt from the 10% additional duties and replaced the 10% duties with a quota and made corresponding changes to the Harmonized Tariff Schedule of the United States. The changes were to be effective for aluminum articles entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. EST on February 3, 2021,
On February 1, 2021, before Proclamation 10139 was to take effect, President Biden issued a Proclamation revoking Proclamation 10139 and restoring the 10% duties for the UAE.