Copper prices in the United States have surged to record highs following President Donald Trump's announcement of a 50% tariff on copper imports. The tariff proposal has driven copper prices above $5.9 per pound, with market observers noting a strong upward momentum pushing prices toward $6. The increase has also affected Canadian copper stocks, which experienced notable gains amid the market rally. This price surge reflects market reactions to the anticipated impact of the tariff on copper supply and trade dynamics.