Copper Tumbles as Trump Threatens Massive New Tariffs on China

Copper plunged after President Donald Trump threatened a massive increase of tariffs on goods from China, the world’s top buyer of the industrial metal.

Prices slid almost 5% below $10,400 a ton on the London Metal Exchange, in the biggest drop in five months. The move wiped out gains that lifted prices towards a record high on Thursday.

Trump’s comments on a social media post sparked turmoil across financial markets, with stocks droppingsharply in the US, while bonds and gold gained. Copper is particularly sensitive to concerns about trade and the global economy given its widespread use in manufacturing ...