Alcoa Corp. AA, the largest aluminum producer in the United States, reported $20 million in additional costs during its first quarter, stemming from newly imposed tariffs on Canadian aluminum ...

Alcoa shares fell after the company said it expects higher tariffs on aluminum to create a $100 million headwind on annual earnings. The stock was down 6% to $23.61 on Thursday following its first ...

Alcoa expects $90 million tariff hit in second quarter, sees duties on China raising annual costs Alcoa said on Wednesday it expects U.S. tariffs on aluminum imports from Canada to cost the ...