According to Mining.com, “Some sulfuric acid producers in the country recently received notifications about the change, and one large buyer has been told about it by their Chinese supplier, according to people familiar with the matter, who asked not to be identified discussing confidential information.” You’re probably wondering what this has to do with silver. Well, sulfuric acid is a key input in copper mining. Miners pour the acid over crushed ore to dissolve out the copper. A significant shortage of sulfuric acid, or even spiking prices, could impact copper output. You’re probably thinking, OK, Mike. But copper ... (full story)