President Donald Trump said he planned on announcing a 25% tariff on all steel and aluminum imports into the US Monday. Trump also said he planned to hold a separate news conference Tuesday or Wednesday to announce massive new reciprocal tariffs, which could match other countries’ tariffs on US goods dollar-for-dollar. …It’s not clear if the new tariffs will be on top of the tariffs already in place on exports from China. Trump in 2018, also announced 25% tariffs on steel and 10% tariffs on aluminum, although the following year he lifted them on Mexico and Canada. While the US is not the manufacturing-focused economy it once was, it still consumes tens of millions of tons of steel and aluminum a year, feeding industries such as automaking, aerospace, oil production, construction and infrastructure, such as roads and bridges. …The steel industry praised the prospect of tariffs to protect America’s interests.