It's just a best guess, but from watching the price movements...

It's just a best guess, but from watching the price movements both in shares and the spot market Asian Metals Index - lithium, I'd say that is what is driving sentiment.

http://www.asianmetal.com/LithiumPrice/Lithium.html

Sad really, because spot pricing bears no relationship to the real prices that Li chemical producers are actually getting.

The London Metals Exchange is attempting to find a way to create a true exchange and price guide, but it is extremely difficult given the complex nature of the products involved.

See this link which explains it all in greater detail:

https://www.linkedin.com/pulse/dear-london-metal-exchange-get-lithium-right-emily-hersh/