Goldman Sachs recently rattled copper investors by lowering its price forecast for the red metal. The investment bank’s analysts are reeling in their expectations for a rally in copper (HGZ24), citing softening demand from China, the world’s largest consumer of the industrial metal. This bearish outlook stems from concerns about China’s property sector woes and a slower-than-anticipated economic recovery post-pandemic. But some analysts are calling out opportunities to buy the dip. Raymond James just upgraded one copper stock, swimming against the current market pessimism toward industrial met…