Brine concentration differs greatly per individual locations....

Brine concentration differs greatly per individual locations. Concentrations can be more abundand as per square footage, not necessarily concentration per se, only. I am posting what I find, of sources as well as you are. That chart is extremely general, and not specific, for example, OUR brines, are not low in Lithium concentration, etc. As per 'grade', all I can say is the concentration numbers are equivalent to Chile Atacama, which is considered a gold standard, for Brine. I'm sure you WILL FIND HIGHER GRADE in specific regions of Argentina, perhaps more so, than in lower grade areas in Chile. You're chart is too general, no specific concentrations. I provide SPECIFIC concentrations.