I currently use Comsec w27 and they are listed on their platform to trade.
Not familiar with the other brokers.
Could be a good punt if you believe in the future of everything we have going on at the moment. (NST jv, Cs offtake, Canada Li, LPD jv etc etc)
Expiry not for another 16 months.
I'm expecting last years high to be taken out well before then...
GL