About us

Cosayach was founded in 1985 in order to exploit the extense Caliche mining resources belonging to Grupo Errázuriz, a leading Chilean family owned economic group, engaged in various business activites including – among others- mining, real state & insurance, fishing, forestry and agriculture.
Cosayach is a reliable partner for the supply of iodine to the world, by having strategic and long term alliances with agents, distributors and final users to provide stable, smooth and safe supply chain from the driest desert of the world to customer´s warehouse in a timely manner.
It is Cosayach commitment to provide the best product and the best service, by means of continuous improvements at production facilities, management practices and business compliance to meet or even exceed the most demanding industry standards in the world.
Cosayach has one of the few largest Caliche resources empowered by the prompt sourcing of sea water to guarantee the most sustainable, longest term supply of crude iodine and nitrates.

Our Facilities





Errazuriz Group

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