Last month, President Trump took the trade world by surprise yet again by announcing a 50% tariff on imports of copper. The imports covered by the tariff were worth $15 billion last year, per Bloomberg. There are exemptions, but not many. The point of the tariffs is to bring copper processing back home. The problem: it may be a bit too late for that. The U.S. president has made no secret of how he feels about the massive outsourcing of manufacturing to Asia, and more specifically, China. Trump recently urged Apple’s chief executive, Tim Cook,…