If you do your research you will find the answer. You can find little nuggets on the surface, you have to dig deeper to find the mother lode. Have a look at the major holders of Kas that should give you a clue. SSO was feasible when tin price was much lower. Lithium batteries will do the opposite of hurt. Take a look at the commodity cycle and LT tin supply, while you're at it think about the cost curve and where Kas lies within that. As for tin solder in electric motors....best laugh i've had all day....right industry wrong component...look at the use for tin in lithium batteries... solder...taking the pi$$ right?
I can't tell you anymore you will have to do your own research, but if you want to offload at 1.6c i'll be happy to buy them off you.