Key Takeaways Alcoa CEO William Oplinger said Tuesday he believes President Donald Trump's proposed tariffs on aluminum and steel would result in fewer US jobs in the sector.Alcoa produces aluminum in Canada and the US.

Approximately 100,000 U.S. aluminum industry jobs could be on the chopping block due to tariffs targeting the metal, according to Alcoa Chief Executive William Oplinger.The Pittsburgh-based aluminum company estimates that a 25% tariff on aluminum imports would result in about 20,

President Donald Trump’s plan to impose a 25% tariff on all imported aluminum could cost 100,000 American jobs, the CEO of one of the largest US aluminum makers warned on Tuesday.