Lithium Brine
Lithium-rich saltwater extracted from underground reservoirs, mainly in South America's Lithium Triangle, and processed to recover lithium carbonate or lithium hydroxide for battery production.
Covered in 4 MetalsCost.com News Intelligence articles, most recently on October 1, 2026.
Coverage
Lithium Argentina Plans to Double Cauchari-Olaroz to 85,000 Tonnes a Year
Lithium Argentina has published a scoping study for a second stage at its Cauchari-Olaroz project that would more than double output to about 85,000 tonnes a year. It plans to fast-track a first 10,000-tonne phase using direct extraction technology.
Lake Resources Wins Environmental Approval for Its Kachi Lithium Project in Argentina
Australian developer Lake Resources has received the main environmental permit for its Kachi lithium project in Argentina. The project can now move into detailed engineering, the last step before a decision on whether to build it.
UK Backs a £43 Million Cornwall Project to Pull Lithium From Geothermal Brine by 2029
Geothermal Engineering Limited will invest about £43 million to extract lithium from hot underground brine in Cornwall, with nearly £10 million of UK government support. Commercial production is due in 2029.
India Is Negotiating for 5 More Lithium Blocks in Argentina, on Top of the 5 It Already Holds
India's KABIL is negotiating 5 additional Argentine lithium blocks beyond the 5 it already holds, Mines Minister Reddy says, as India also pursues deals in Australia and Chile.