Salar brines are located in the nucleus of the Salar de Atacama. They contain the greatest lithium and potassium concentrations ever known, in addition to considerable sulphate and boron concentrations. From this natural resource lithium carbonate, potassium chloride, potassium sulphate, boric acid and magnesium chloride are produced.
The Salar de Atacama is a source of underground salar brines, formed through natural leaching from the Andes Mountains: throughout time, diverse minerals found under the salt surface crust have descended from the mountains, accumulating in increasing concentrations.
Together with high concentrations of salar brines, the Salar de Atacama has a series of advantages: it enables low processing costs due to its reduced magnesium content; it has higher evaporation rates than other salt plains in the world and it is able to operate all year long due to the privileged weather conditions that favour it.