{video} Chile, the world's No. 1 copper producer, is in wait-and-see mode after U.S. President Donald Trump announced a surprise 50% tariff on imports of the red metal, with the Andean nation blindsided while its top miner held out hope of exemptions. In a phone call with Reuters shortly after Trump's remarks, the chairman of Chilean state miner Codelco Maximo Pacheco said the firm wanted to know which copper products would be included and if the tariff would hit all countries. "I believe what we need to do is understand what this is about. What products are affected? Because he referred to copper in general ... (full story)