LONDON, July 9 (Reuters) - U.S. copper futures widened their premium to the London benchmark on Wednesday, reflecting U.S. President Donald Trump's plan to impose a 50% import tariff on the metal.

The London Stock Exchange has already suffered a mass exodus thanks to Wall Street in recent months, and only raised a ...

Freeport-McMoRan turns lower a day after Comex copper prices surged to an all-time high after President Trump said he planned ...