President Trump wants America to produce more of the much-needed mineral, but a 50 percent tariff could undermine his aim of a manufacturing renaissance.

Copper shipments into the United States are expected to accelerate in the coming weeks in a final scramble to get metal across the border before U.S. President Donald Trump's higher than expected 50% tariff on imported copper takes effect.

SANTIAGO (Reuters) -Copper miner Antofagasta sees opportunity for its planned copper project in the United States in the context of 50% tariffs on the metal imposed by the Trump administration, CEO Ivan Arriagada said at an event on Thursday.