SANTIAGO, CHILE - JULY 9: Jewelry and crafts created by an artisan in Chilean copper is displayed for sale on July 9, 2025 in Santiago, Chile. With around 5.5 million tons per year and with a 25% of the global production, Chile is the biggest copper producer in the world and the most important supplier of the metal for the United States market. President Trump announced an increase of 50% in copper tariffs. (Photo by Marcelo Hernandez/Getty Images)Getty ImagesCopper has been referred to as “Dr. Copper” due ...