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.

The aluminum company views a 25% tariff on aluminum imports resulting in about 20,000 direct U.S. industry jobs being cut, as well as many as 80,000 indirect jobs being eliminated, Chief Executive Bill Oplinger said.

A 25% tariff would cost the U.S. aluminum industry tens of thousands of direct and indirect jobs, Bill Oplinger told an investment bank conference.