SALAR DEL RINCÓN, SALTA PROVINCE, ARGENTINA. The Rincon Lithium Project – a large, undeveloped lithium-brine project located in the heart of the ‘lithium triangle’ in Argentina – will be a valuable source of rapidly produced, high-quality lithium for the global energy transition.. A long-life, scalable resource capable of producing battery-grade lithium carbonate from raw brine, the ...