Ann: Maricunga Definitive Feasibility Study, page-155

Furthermore,  lithium hardrock mining cost more than anticipated.  Many miners locked in the purchase price too cheap hence they make tight margin or loss.
expansions also take much longer than anticipated. 
I am confident that we will get a deal soon.
The only challenge is the price as the current spot price is not in our favour.
Wait for china to kick start again after Chinese New Year,  and due to the flooding in Chile.  I hope lithium price will start go up so our offtake discussions can be fast tracked.
Existing infrastructure is also very important. BGS, AVz have paid their price. 
Other projects with low quality also suffere badly. 
patience is required by hold on to your shares.