Ann: Maricunga Definitive Feasibility Study, page-154

Here is one example and I will dig out others on the weekend.  I have compared the LPI DFS and AGY PEA in terms of evaporation pond CAPEX.  Taking into consideration LPI's average Maricunga Li grade is 3.52 times higher than AGY's Rincon and adjusting AGY's production output to 20k a year (same as LPI), it turns out that despite the massive difference in grade, LPI's evaporation pond CAPEX figure on a comparative basis is 4.6 times higher than AGY's project. Why is there such an enormous disparity? 

I will put a table together of lithium hopefuls for comparative purposes.