You're assuming they are going to convert the cash into the equivalent amount in assets. There's a lot of water to pass under the bridge for that to happen. I think you need to discount the cash they have given the risk associated with execution, lithium price, uncertainty, etc.
For example, what if the price of lithium is half of what it is now in 2 year's time? The money they have spent at that time certainly wouldn't have been converted to the equivalent in assets. I'm not saying this is going to happen, but you need to factor in such risk. In my valuation I have discounted the cash they have for the appropriate risk. My fair value is now at $2.
GXY Price at posting:
$2.22 Sentiment: Hold Disclosure: Not Held