Recharge Resources Ltd. announced Ekosolve has achieved 99.89% purity on the first wash and 99.99% purity Lithium Carbonate ("Li2CO3") using the Ekosolve lithium carbonate production system with brines from the Pocitos 1 Lithium Brine Project ("Pocitos One" or the "Project") located near Pocitos township in Salta Province, Argentina. This far exceeds the purity requirement for battery grade lithium and is the quality for pharmaceutical grade. Recharge Resources brine from Pocitos One was used for a 2-batch extraction, washing and stripping process and a 1-litre strip liquor with extracted lithium was obtained.

The strip liquor then underwent a 7- stage crystallization process to produce a lithium carbonate crystalline product. The majority of impurities, particularly calcium, potassium and sodium, were removed in the washing stage. Following that, lithium concentrations in strip liquor were concentrated in the two process cycles and the final lithium concentration in 2-liter strip liquor after mixing the 2 batches of 500 mL was 3,204.43 mg/L. The Lithium % is accurate to +/- 0.005% so the reduction in purity from the second wash to the third wash is a function of measurement accuracy.