Mulberry said despite Tesla's stock volatility, "they've signed agreements now where they're going to be the supercharging hub for everybody who makes electric vehicles and they're going to get paid for just simply charging batteries as a result of that."

"They're also the leader in components in terms of being able to source and make batteries and other components that EV's work on," he added.

Tesla's shares have slumped more than 25% so far this year.