In August, Trump justified the imposition of tariffs on the need to protect domestic industry from growing imports from Canada. However, the USTR said on Tuesday that supplies of Canadian aluminum were returning to normal levels. He warned that he could restore tariffs if these supplies increased again.
Washington originally introduced 10 percent tariffs on aluminum imports from most countries in March 2018. In May of the following year, Canada and Mexico reached an agreement with the United States to abolish these levies.
The August resumption of tariffs on Canadian aluminum came just weeks after the entry into force of a new free trade agreement between the United States, Mexico and Canada (USMCA). It replaced the North American Free Trade Agreement (NAFTA) of 1994.