With an area of 1600 km², Arizaro represents the largest brine deposit of Argentinian Puna landscape and the third largest in the so-called ‘Triángulo del Litio de Sudamérica’ (Lithium Triangle of South America). This region, divided over Bolivia, Chile and Argentina, boasts over 80% of the world’s lithium brine reserves and at present is the main global focus of exploratory efforts into this type of deposit. Extreme aridity and volcanic activity surrounding the area have led to the formation of brines rich in lithium, boron, potassium and magnesium, amongst other cations which have scarcely been researched in the Arizaro salt flat. This provides the Arizaro Project with excellent geological conditions and mining potential.

Exploration 2019

Location and access routes to the projects

Arizaro Location


The exploration programme that has been carried out by Hanari S.A. since May 2018 includes direct surface exploration (geochemical sampling in trenches and geological mapping) as well as indirect exploration techniques such as geophysics (TEM-GRAV). This data has allowed us to identify target areas, which has been successfully drilled during the first quarter of 2019. Alongside these exploratory activities, Hanari S.A. is equally developing an active participation schedule on the Tolar Grande’s multi-sectored plateau, prioritising hiring local citizens for manual work and promoting the development of local suppliers, respecting their idiosyncrasies and customs.

General Information

The Arizaro brine deposit is a depression or sedimentary deposition area, restricted to the east and west by tectonic shifts and to the north by crossing volcanic chains. It is the base level of an endorheic basin (a basin with no outflow) in the Puna region (Equivalent to the Bolivian ‘Altiplano’ or the Chilean ‘Puna de Atacama.’ A clastic sedimentary and chemical (evaporite) deposition has filled this depression over the course of geological time.

The project

Arizaro has significant logistical advantages, such as its proximity to train stations which connect with the port of Antofagasta, Chile. Furthermore, its vicinity to other mining projects in advanced stages, such as Taca Taca (Cu-Au) and Lindero (Au), will ensure the accessibility of the project all year round. Equally, the policies of mining promotion and fiscal stability maintained by the government of Salta provide a great basis for developing the project.


During 2018 the company completed geochemical surface sampling, geophysical surveys and a deep diamond drilling campaign.

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