From soup cans to airplanes, steel and aluminum are a fundamental part of American life

Mick Beekhuizen, the president and CEO of The Campbell Co., said in an earnings call last week that his company imports tin mill steel from Canada . Beekhuizen said Campbell is working with its suppliers to mitigate the impact of tariffs, but it may need to raise prices. The institute said the more limited tariffs Trump imposed in 2018 resulted in the closure of nine tin mill lines in the U.S. as manufacturers shifted to other types of steel or simply shut down. As a result, only three U.S. tin steel lines remain open. Tin mill steel is used for…