Global stock markets have largely shrugged off President Donald Trump’s renewed tariff campaign. In commodities markets, however, tariff threats have sent the price of copper soaring to all-time highs — signaling the potential for higher tariff-induced prices for a metal with critical uses across the US economy.

It's a trove of information for portfolio managers and macro-watchers to gauge, and trade policy news headlines are likely to continue breaking. On July 9, President Trump announced a surprise 50% levy on copper imports, followed by a steep 50% duty on Brazil. 1 Together, it put the materials sector in focus.

U.S. President Donald Trump's threat of a 50% tariff on copper imports is raising alarm in the U.S. auto sector, as it could make it even harder for carmakers and suppliers to absorb border taxes and rising costs,

President Donald Trump announced a 50% tariff on copper set to take effect on Aug. 1. SAN DIEGO — A newly announced 50% tariff on copper could drive up the cost of everything from plumbing repairs to solar panels, and it’s raising new concerns about inflation.

President Trump on Wednesday said he would be sending letters to over 150 countries as he plans a barrage of duties to take effect Aug. 1, including levies on pharmaceutical imports and semiconductors.

Three-month copper on the London Metal Exchange eased 0.06% to $9,640 per metric ton by 0701 GMT, while the most-traded copper contract on the Shanghai Futures Exchange added 0.06% to 77,980 yuan ($10,865.11) a ton.

Markets had a muted response to new tariffs, suggesting investors might be discounting the effects they could have on inflation and the economy.

Copper is at the core of the American economy. It's in the wires of our pervasive electronics, in the walls of homes and in the engines of cars.

The U.S. copper industry is in crisis — and Washington is finally taking notice. With President Donald Trump’s recent announcement of 50% tariffs on copper imports under Section 232 of the Trade Expansion Act,

The planned 50% tariff on copper imports may turn out to be the biggest own goal of U.S. President Donald Trump's ongoing trade war with the rest of the world.