Leading electric vehicle (EV) manufacturer Tesla has warned a global shortage of battery minerals could be on the horizon due to underinvestment in the mining sector, according to sources at a closed-door mining conference in Washington, United States.

Two unnamed sources at the event told Reuters that Tesla global supply manager for battery metals Sarah Maryssael forecasted looming supply challenges for the metal components used to make EV batteries, which include nickel, copper, lithium and cobalt.