President Trump is again amping up his trade threats, unveiling a new batch of letters to country leaders outlining tariffs on goods imported from their countries beginning in August. Trump on ...

President Donald Trump said he will impose a 50% tariff on copper imports, and is mulling a 200% levy on imported ...

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Copper has long been seen as a key weather vane for economic growth, with higher prices often signaling industrial expansion.

The United States produces a lot of copper, but still imports roughly 40 percent of what it consumes, primarily from Chile.