It's Already happening. Copper Supply Deficit.The sudden removal of around 600,000 tons of expected supply would move the market from a large expected surplus into balance, or even a deficit, analysts say. And it’s also a major warning for the future: copper is an essential metal needed to decarbonize the global economy, which means mining companies will play a key role in facilitating the shift to green energy.
https://www.bnnbloomberg.ca/the-world-s-copper-supply-is-suddenly-looking-scarce-1.2010183