Rio Tinto Rincon lithium project wins Argentina approval to scale production

Argentina Rio Tinto Mining

Argentina cleared the Rio Tinto Rincon lithium project to extract brine and produce lithium. The authorization enables the Rio Tinto Rincon lithium project to ramp toward large-scale output in Salta. As a result, the Rio Tinto Rincon lithium project advances from pilot status to a defined production pathway.

What the approval covers and the build-out timeline

Salta approved extraction and production of 50,000 t/yr of battery-grade lithium carbonate. Authorities granted permits after environmental, water, power, and indigenous consultations. Rio Tinto also benefits from Argentina’s RIGI investment incentives. The company holds clearance to start at 3,000 t/yr in 2028. Ramp-up aims to reach full capacity by 2031.

Strategic context for Argentina’s lithium supply chain

The decision positions Salta among Argentina’s leading lithium hubs. However, the project still must execute drilling, processing, and off-take steps. Meanwhile, provincial oversight and community engagement remain central. As a result, the approval de-risks schedule and financing milestones. It also signals policy support for value-added battery materials.

The Metalnomist Commentary

This approval tightens the pipeline for non-Chinese lithium supply. Watch capex discipline, brine processing yields, and ramp-up reliability. Long lead times mean pricing cycles could shift before peak output arrives.